Milenković, Marina

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Authority KeyName Variants
orcid::0000-0002-6298-0599
  • Milenković, Marina (173)
Projects
Investigation on the medicinal plants: morphological, chemical and pharmacological characterisation Ispitivanje lekovitog potencijala biljaka: morfološka, hemijska i farmakološka karakterizacija
Interactions of natural products, their derivatives and coordination compounds with proteins and nucleic acids Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200161 (University of Belgrade, Faculty of Pharmacy)
Genes and molecular mechanisms promoting probiotic activity of lactic acid bacteria from Western Balkan Plants and synthetic bioactive products of new generation
Development of molecules with antiinflammatory and cardioprotective activity: structural modifications, modelling, physicochemical characterization and formulation investigations Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200175 (Institute of Technical Sciences of SASA, Belgrade)
Synthesis, processing and applications of nanostructured multifunctional materials with defined properties Develooment and utilization of novel and traditional technologies in production of competitive food products with added valued for national and global market - CREATING WEALTH FROM THE WEALTH OF SERBIA
ICREA Antibiotic resistant bacterial pathogens in Serbia: phenotypic and genotypic characterization
Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them Diversity of the flora and vegetation of the Central Balkans: Ecology, chorology, and conservation
Plant Biodiversity of Serbia and the Balkans - assesment, sustainable use and protection Interactive role of dyslipidemia, oxidative stress and inflammation in atherosclerosis and other diseases: genetic and biochemical markers
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200007 (University of Belgrade, Institute for Biological Research 'Siniša Stanković') Biljni proizvodi u preventivi i terapiji nezaraznih hroničnih oboljenja kod ljudi
MICINN (Ministry of Science and Innovation, Spain)
Bilateral project between Serbia and Germany (DAAD project 57514776) CIRMMP (Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine Paramagnetiche)
Egyptian Cultural Affairs and Missions Sector (Plan number 7: 2012/2017) Erasmus + KA1 mobility program 2016/2017
German Academic Exchange Service (DAAD) Germany funded by the German Academic Exchange Service (DAAD project number 57514776)
Thin films of single wall carbon nanotubes and graphene for electronic application Computational design, synthesis and biological evaluation of new heterocyclic compounds as selective tumorogenesis inhibitors
Design, synthesis, characterization and assessment of practical applications of coordination and organometallic compounds Synthesis, modeling, physicochemical and biological properties of organic compounds and related metal complexes

Author's Bibliography

Characterization of tea aqueous extracts and their utilization for dyeing and functionalizing fabrics of different chemical compositions

Pavun, Leposava; Spasojević, Danijela; Ivanovska, Aleksandra; Lađarević, Jelena; Milenković, Marina; Uskoković-Marković, Snežana

(Macedonian Journal of Chemistry and Chemical Engineering, 2023)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Spasojević, Danijela
AU  - Ivanovska, Aleksandra
AU  - Lađarević, Jelena
AU  - Milenković, Marina
AU  - Uskoković-Marković, Snežana
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5420
AB  - Green, black, rooibos, and hibiscus tea (GT, BT, RT, and HT) aqueous extracts were prepared and
characterized in terms of total flavonoids (TFC) and total phenolic (TPC) contents and antioxidant and
antimicrobial activities. BT has the highest, while HT has the lowest TFC (1213 vs. 415 mg l–1
), while the
extracts’ TPCs (2283 – 7251 mg l–1
) decreased in the following order: BT > GT > RT > HT. Their antioxidant activities of 78.1 – 93.1% and 97.8 – 100% were determined according to DPPH and ABTS methods, respectively. BT and especially GT aqueous extracts possessed mild effects against several microorganisms. All examined extracts have an affinity for dyeing wool, cellulose acetate, polyamide, and cotton,
which is proven by the color strength values of 1.65–19.12. Wool, polyacrylonitrile, polyester, polyamide, cotton, and cellulose acetate functionalized with GT aqueous extract inhibited the growth of S. aureus
and E. coli, while polyacrylonitrile and cotton also inhibited the growth of E. faecalis, and C. albicans,
respectively. Wide inhibition zones for S. aureus were observed for fabrics functionalized with BT aqueous extract. Generally, the investigated fabrics showed very high (81.60 – 100%) ABTS radical scavenging ability independent of the extract used. TPCs have good linear correlations with the antioxidant activities of wool and polyacrylonitrile determined by the DPPH method. Fabrics with different chemical compositions dyed and/or functionalized with GT or BT aqueous extracts can be used to produce high-valueadded medical textiles with therapeutic, prophylactic, and protective functions. They can find potential applications in wound treatment, especially in skin wounds that are susceptible to infection with S. aureus.
Moreover, wool and cotton functionalized with GT or BT aqueous extract can also be considered for use in
disposable medical textiles like bandages and gauze used in the wound-healing process.
Keywords: tea aqueous extract; fabric; functionalization; dyeing; antioxidant and antimicrobial
AB  - Водните екстракти подготвени од црн, зелен, ројбуш и хибискус чај (GT, BT, RT и HT) се
карактеризирани од аспект на количество вкупни флавоноиди (TFC) и вкупни феноли (TPC), и
антиоксидациска и антимикробна активност. BT покажува најголема, а HT најмала TFC (1213 vs.
415 mg l–1), додека TPC во воденте екстракти (2283 – 7251 mg l–1) се намалува според следниов
редослед: BT > GT > RT > HT. Нивната антиоксидациска активност, одредена користејќи ги
методите DPPH и ABTS, се движи соодветно во опсег 78,1 – 93.1 % и 97,8 – 100 %. Водните
екстракти на BT и GT покажаа благ ефект врз одредени микроорганизми. Сите испитувани
екстракти имаат афинитет за боење волна, целулозен ацетат, полиамид и памук, што е потврдено
со одредување на јачина на бојата на ткаенините која изнесува 1,65 – 19.12. Волната,
полиакрилонитрилот, полиестерот, полиамидот, памукот и целулозниот ацетат функционализирани со воден екстракт од GT го инхибираат растот на S. aureus и E. coli, додека
полиакрилонитрилот и памукот соодветно го инхибираат растот на E. faecalis и C. albicans.
Широки инхибициони зони за S. aureus се воочени за ткаенините функционализирани со BT.
Општо, испитуваните ткаенини покажуваат многу висока (81,60 – 100 %) способност за
отстранување на ABTS-радикали. Утврдена е добра линеарна зависност помеѓу TPC во водните
екстракти и антиоксидациската активност на волната и полиакрилонитрилот одредени преку
методот DPPH. Ткаенините со различен хемиски состав обоени и/или функционализирани со
водни екстракти од GT или BT можат да се користат за производство на медицински текстил со
висока додадена вредност, кој има терапевтски, профилактички и заштитни функции.
Медицинските текстилни материјали имаат потенцијална примена за третман на рани, особено за
рани на кожа кои се подложни на инфекција со S. aureus. Покрај тоа, волната и памукот
функционализирани со водни екстракти од GT или BT можат да се користат за производство на
медицински завои и гази за еднократна употреба.
PB  - Macedonian Journal of Chemistry and Chemical Engineering
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Characterization of tea aqueous extracts and their utilization for dyeing and functionalizing fabrics of different chemical compositions
T1  - Карактеризација на водни екстракти од чаеви и нивна употреба за боење и функционализација на ткаенини со различен хемиски состав
VL  - 42
IS  - 2
SP  - 263
EP  - 273
DO  - 10.20450/mjcce2023.2698
ER  - 
@article{
author = "Pavun, Leposava and Spasojević, Danijela and Ivanovska, Aleksandra and Lađarević, Jelena and Milenković, Marina and Uskoković-Marković, Snežana",
year = "2023",
abstract = "Green, black, rooibos, and hibiscus tea (GT, BT, RT, and HT) aqueous extracts were prepared and
characterized in terms of total flavonoids (TFC) and total phenolic (TPC) contents and antioxidant and
antimicrobial activities. BT has the highest, while HT has the lowest TFC (1213 vs. 415 mg l–1
), while the
extracts’ TPCs (2283 – 7251 mg l–1
) decreased in the following order: BT > GT > RT > HT. Their antioxidant activities of 78.1 – 93.1% and 97.8 – 100% were determined according to DPPH and ABTS methods, respectively. BT and especially GT aqueous extracts possessed mild effects against several microorganisms. All examined extracts have an affinity for dyeing wool, cellulose acetate, polyamide, and cotton,
which is proven by the color strength values of 1.65–19.12. Wool, polyacrylonitrile, polyester, polyamide, cotton, and cellulose acetate functionalized with GT aqueous extract inhibited the growth of S. aureus
and E. coli, while polyacrylonitrile and cotton also inhibited the growth of E. faecalis, and C. albicans,
respectively. Wide inhibition zones for S. aureus were observed for fabrics functionalized with BT aqueous extract. Generally, the investigated fabrics showed very high (81.60 – 100%) ABTS radical scavenging ability independent of the extract used. TPCs have good linear correlations with the antioxidant activities of wool and polyacrylonitrile determined by the DPPH method. Fabrics with different chemical compositions dyed and/or functionalized with GT or BT aqueous extracts can be used to produce high-valueadded medical textiles with therapeutic, prophylactic, and protective functions. They can find potential applications in wound treatment, especially in skin wounds that are susceptible to infection with S. aureus.
Moreover, wool and cotton functionalized with GT or BT aqueous extract can also be considered for use in
disposable medical textiles like bandages and gauze used in the wound-healing process.
Keywords: tea aqueous extract; fabric; functionalization; dyeing; antioxidant and antimicrobial, Водните екстракти подготвени од црн, зелен, ројбуш и хибискус чај (GT, BT, RT и HT) се
карактеризирани од аспект на количество вкупни флавоноиди (TFC) и вкупни феноли (TPC), и
антиоксидациска и антимикробна активност. BT покажува најголема, а HT најмала TFC (1213 vs.
415 mg l–1), додека TPC во воденте екстракти (2283 – 7251 mg l–1) се намалува според следниов
редослед: BT > GT > RT > HT. Нивната антиоксидациска активност, одредена користејќи ги
методите DPPH и ABTS, се движи соодветно во опсег 78,1 – 93.1 % и 97,8 – 100 %. Водните
екстракти на BT и GT покажаа благ ефект врз одредени микроорганизми. Сите испитувани
екстракти имаат афинитет за боење волна, целулозен ацетат, полиамид и памук, што е потврдено
со одредување на јачина на бојата на ткаенините која изнесува 1,65 – 19.12. Волната,
полиакрилонитрилот, полиестерот, полиамидот, памукот и целулозниот ацетат функционализирани со воден екстракт од GT го инхибираат растот на S. aureus и E. coli, додека
полиакрилонитрилот и памукот соодветно го инхибираат растот на E. faecalis и C. albicans.
Широки инхибициони зони за S. aureus се воочени за ткаенините функционализирани со BT.
Општо, испитуваните ткаенини покажуваат многу висока (81,60 – 100 %) способност за
отстранување на ABTS-радикали. Утврдена е добра линеарна зависност помеѓу TPC во водните
екстракти и антиоксидациската активност на волната и полиакрилонитрилот одредени преку
методот DPPH. Ткаенините со различен хемиски состав обоени и/или функционализирани со
водни екстракти од GT или BT можат да се користат за производство на медицински текстил со
висока додадена вредност, кој има терапевтски, профилактички и заштитни функции.
Медицинските текстилни материјали имаат потенцијална примена за третман на рани, особено за
рани на кожа кои се подложни на инфекција со S. aureus. Покрај тоа, волната и памукот
функционализирани со водни екстракти од GT или BT можат да се користат за производство на
медицински завои и гази за еднократна употреба.",
publisher = "Macedonian Journal of Chemistry and Chemical Engineering",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Characterization of tea aqueous extracts and their utilization for dyeing and functionalizing fabrics of different chemical compositions, Карактеризација на водни екстракти од чаеви и нивна употреба за боење и функционализација на ткаенини со различен хемиски состав",
volume = "42",
number = "2",
pages = "263-273",
doi = "10.20450/mjcce2023.2698"
}
Pavun, L., Spasojević, D., Ivanovska, A., Lađarević, J., Milenković, M.,& Uskoković-Marković, S.. (2023). Characterization of tea aqueous extracts and their utilization for dyeing and functionalizing fabrics of different chemical compositions. in Macedonian Journal of Chemistry and Chemical Engineering
Macedonian Journal of Chemistry and Chemical Engineering., 42(2), 263-273.
https://doi.org/10.20450/mjcce2023.2698
Pavun L, Spasojević D, Ivanovska A, Lađarević J, Milenković M, Uskoković-Marković S. Characterization of tea aqueous extracts and their utilization for dyeing and functionalizing fabrics of different chemical compositions. in Macedonian Journal of Chemistry and Chemical Engineering. 2023;42(2):263-273.
doi:10.20450/mjcce2023.2698 .
Pavun, Leposava, Spasojević, Danijela, Ivanovska, Aleksandra, Lađarević, Jelena, Milenković, Marina, Uskoković-Marković, Snežana, "Characterization of tea aqueous extracts and their utilization for dyeing and functionalizing fabrics of different chemical compositions" in Macedonian Journal of Chemistry and Chemical Engineering, 42, no. 2 (2023):263-273,
https://doi.org/10.20450/mjcce2023.2698 . .

Antimicrobial activity of Hyssopus officinalis L. subsp. aristatus (Godr.) Nyman (Lamiaceae) essential oils from Montenegro and Serbia

Mićović, Tijana; Ušjak, Dušan; Milenković, Marina; Samardžić, Stevan; Maksimović, Zoran

(Institut za proučavanje lekovitog bilja Dr Josif Pančić, Beograd, 2023)

TY  - JOUR
AU  - Mićović, Tijana
AU  - Ušjak, Dušan
AU  - Milenković, Marina
AU  - Samardžić, Stevan
AU  - Maksimović, Zoran
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5463
AB  - In this study, antimicrobial activity of essential oils extracted from the aerial flowering parts (herbs) of Hyssopus officinalis subsp. aristatus (Godr.) Nyman (Lamiaceae) collected from five different locations in Montenegro, or purchased in Serbia, were investigated. In addition, their antibacterial activity in combination with antibiotics was studied. The antimicrobial activity against selected standard bacterial and yeast strains was investigated using the broth microdilution method. Two standard antibiotics were used for comparison: the aminoglycoside antibiotic amikacin and the cephalosporin antibiotic ceftriaxone. The antimicrobial activity of the essential oil-amikacin combination was investigated using the checkerboard assay. The main components of the essential oils were 1,8-cineole, cis-pinocamphone, β-pinene and limonene in varying quantities. Most of the tested essential oils showed no significant antimicrobial activity. However, an essential oil rich in cis-pinocamphone showed moderate activity against both Staphylococcus aureus and Escherichia coli (MIC = 400 µg/mL). The overall effect of the essential oils and antibiotic combinations against E. coli or S. aureus ranged from additive (FICI = 0.625) to indifferent (FICI = 1.5), depending on the source of the essential oil.
PB  - Institut za proučavanje lekovitog bilja Dr Josif Pančić, Beograd
T2  - Lekovite sirovine
T1  - Antimicrobial activity of Hyssopus officinalis L. subsp. aristatus (Godr.) Nyman (Lamiaceae) essential oils from Montenegro and Serbia
VL  - 43
DO  - 10.61652/leksir2343e173M
ER  - 
@article{
author = "Mićović, Tijana and Ušjak, Dušan and Milenković, Marina and Samardžić, Stevan and Maksimović, Zoran",
year = "2023",
abstract = "In this study, antimicrobial activity of essential oils extracted from the aerial flowering parts (herbs) of Hyssopus officinalis subsp. aristatus (Godr.) Nyman (Lamiaceae) collected from five different locations in Montenegro, or purchased in Serbia, were investigated. In addition, their antibacterial activity in combination with antibiotics was studied. The antimicrobial activity against selected standard bacterial and yeast strains was investigated using the broth microdilution method. Two standard antibiotics were used for comparison: the aminoglycoside antibiotic amikacin and the cephalosporin antibiotic ceftriaxone. The antimicrobial activity of the essential oil-amikacin combination was investigated using the checkerboard assay. The main components of the essential oils were 1,8-cineole, cis-pinocamphone, β-pinene and limonene in varying quantities. Most of the tested essential oils showed no significant antimicrobial activity. However, an essential oil rich in cis-pinocamphone showed moderate activity against both Staphylococcus aureus and Escherichia coli (MIC = 400 µg/mL). The overall effect of the essential oils and antibiotic combinations against E. coli or S. aureus ranged from additive (FICI = 0.625) to indifferent (FICI = 1.5), depending on the source of the essential oil.",
publisher = "Institut za proučavanje lekovitog bilja Dr Josif Pančić, Beograd",
journal = "Lekovite sirovine",
title = "Antimicrobial activity of Hyssopus officinalis L. subsp. aristatus (Godr.) Nyman (Lamiaceae) essential oils from Montenegro and Serbia",
volume = "43",
doi = "10.61652/leksir2343e173M"
}
Mićović, T., Ušjak, D., Milenković, M., Samardžić, S.,& Maksimović, Z.. (2023). Antimicrobial activity of Hyssopus officinalis L. subsp. aristatus (Godr.) Nyman (Lamiaceae) essential oils from Montenegro and Serbia. in Lekovite sirovine
Institut za proučavanje lekovitog bilja Dr Josif Pančić, Beograd., 43.
https://doi.org/10.61652/leksir2343e173M
Mićović T, Ušjak D, Milenković M, Samardžić S, Maksimović Z. Antimicrobial activity of Hyssopus officinalis L. subsp. aristatus (Godr.) Nyman (Lamiaceae) essential oils from Montenegro and Serbia. in Lekovite sirovine. 2023;43.
doi:10.61652/leksir2343e173M .
Mićović, Tijana, Ušjak, Dušan, Milenković, Marina, Samardžić, Stevan, Maksimović, Zoran, "Antimicrobial activity of Hyssopus officinalis L. subsp. aristatus (Godr.) Nyman (Lamiaceae) essential oils from Montenegro and Serbia" in Lekovite sirovine, 43 (2023),
https://doi.org/10.61652/leksir2343e173M . .

Composition and antimicrobial activity of Pastinaca sativa subsp. sativa, P. sativa subsp. urens and P. hirsuta essential oils

Ušjak, Ljuboš; Drobac, Milica; Ivanov, Marija; Soković, Marina; Milenković, Marina; Niketić, Marjan; Petrović, Silvana

(Taylor and Francis Group, 2023)

TY  - JOUR
AU  - Ušjak, Ljuboš
AU  - Drobac, Milica
AU  - Ivanov, Marija
AU  - Soković, Marina
AU  - Milenković, Marina
AU  - Niketić, Marjan
AU  - Petrović, Silvana
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4469
AB  - Composition and antimicrobial activity of root, leaf, stem, flower and fruit essential oils from
cultivated Pastinaca sativa subsp. sativa, and its two wild-growing relatives P. sativa subsp. urens
and P. hirsuta (Apiaceae) were investigated. Twenty-nine hydrodistilled essential oils of plants from
different localities and/or years were analysed by GC-FID and GC/MS. Dominant in root oils was
myristicin (P. sativa) or apiole (P. hirsuta), in leaf and stem oils myristicin (cultivated plants) or γ-palmitolactone (wild-growing plants) and in flower and fruit oils aliphatic esters. Multivariate
statistics (PCA, nMDS, UPGMA clustering) generally revealed separation of oils of investigated
Pastinaca taxa and demonstrated their chemosystematic significance. One oil per each organ of all three plants (fifteen in total) was tested using microdilution method for activity against Candida
tropicalis, C. parapsilosis, C. krusei, C. glabrata, C. albicans, Staphylococcus aureus, Bacillus cereus, Listeria monocytogenes, Escherichia coli, Salmonella Typhimurium and Enterobacter cloacae; MIC = 0.25–8 mg/mL, MBC(MFC) = 0.5–16 mg/mL.
PB  - Taylor and Francis Group
T2  - Journal of Essential Oil Research
T1  - Composition and antimicrobial activity of Pastinaca sativa subsp. sativa, P. sativa subsp. urens and P. hirsuta essential oils
VL  - 35
IS  - 2
SP  - 154
EP  - 167
DO  - 10.1080/10412905.2022.2147675
ER  - 
@article{
author = "Ušjak, Ljuboš and Drobac, Milica and Ivanov, Marija and Soković, Marina and Milenković, Marina and Niketić, Marjan and Petrović, Silvana",
year = "2023",
abstract = "Composition and antimicrobial activity of root, leaf, stem, flower and fruit essential oils from
cultivated Pastinaca sativa subsp. sativa, and its two wild-growing relatives P. sativa subsp. urens
and P. hirsuta (Apiaceae) were investigated. Twenty-nine hydrodistilled essential oils of plants from
different localities and/or years were analysed by GC-FID and GC/MS. Dominant in root oils was
myristicin (P. sativa) or apiole (P. hirsuta), in leaf and stem oils myristicin (cultivated plants) or γ-palmitolactone (wild-growing plants) and in flower and fruit oils aliphatic esters. Multivariate
statistics (PCA, nMDS, UPGMA clustering) generally revealed separation of oils of investigated
Pastinaca taxa and demonstrated their chemosystematic significance. One oil per each organ of all three plants (fifteen in total) was tested using microdilution method for activity against Candida
tropicalis, C. parapsilosis, C. krusei, C. glabrata, C. albicans, Staphylococcus aureus, Bacillus cereus, Listeria monocytogenes, Escherichia coli, Salmonella Typhimurium and Enterobacter cloacae; MIC = 0.25–8 mg/mL, MBC(MFC) = 0.5–16 mg/mL.",
publisher = "Taylor and Francis Group",
journal = "Journal of Essential Oil Research",
title = "Composition and antimicrobial activity of Pastinaca sativa subsp. sativa, P. sativa subsp. urens and P. hirsuta essential oils",
volume = "35",
number = "2",
pages = "154-167",
doi = "10.1080/10412905.2022.2147675"
}
Ušjak, L., Drobac, M., Ivanov, M., Soković, M., Milenković, M., Niketić, M.,& Petrović, S.. (2023). Composition and antimicrobial activity of Pastinaca sativa subsp. sativa, P. sativa subsp. urens and P. hirsuta essential oils. in Journal of Essential Oil Research
Taylor and Francis Group., 35(2), 154-167.
https://doi.org/10.1080/10412905.2022.2147675
Ušjak L, Drobac M, Ivanov M, Soković M, Milenković M, Niketić M, Petrović S. Composition and antimicrobial activity of Pastinaca sativa subsp. sativa, P. sativa subsp. urens and P. hirsuta essential oils. in Journal of Essential Oil Research. 2023;35(2):154-167.
doi:10.1080/10412905.2022.2147675 .
Ušjak, Ljuboš, Drobac, Milica, Ivanov, Marija, Soković, Marina, Milenković, Marina, Niketić, Marjan, Petrović, Silvana, "Composition and antimicrobial activity of Pastinaca sativa subsp. sativa, P. sativa subsp. urens and P. hirsuta essential oils" in Journal of Essential Oil Research, 35, no. 2 (2023):154-167,
https://doi.org/10.1080/10412905.2022.2147675 . .

Ex vivo and in vivo antioxidant activity of β-hydroxy-β-arylalkanoic acids

Subošić, Branko; Kotur-Stevuljević, Jelena; Brborić, Jasmina; Janković, Tamara; Milenković, Marina; Ivković, Branka; Kostadinović, Jelena; Savić, Jelena

(Pakistan Journal of Pharmaceutical Sciences, 2023)

TY  - JOUR
AU  - Subošić, Branko
AU  - Kotur-Stevuljević, Jelena
AU  - Brborić, Jasmina
AU  - Janković, Tamara
AU  - Milenković, Marina
AU  - Ivković, Branka
AU  - Kostadinović, Jelena
AU  - Savić, Jelena
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5146
AB  - The interplay between oxidative stress and inflammation is implicated in many chronic diseases including Alzheimer`s disease, cardiovascular diseases, diabetes and cancer. Thirteen β-hydroxy-β-arylalkanoic acids were previously synthesized and evaluated for their anti-inflammatory activity. The aim of this study was to asses ex vivo antioxidant activity of synthesized acids, as well as ibuprofen and to identify the compounds with the most promising results for further investigation on their capacity to counteract in vivo oxidative stress triggered by inflammation. The antioxidant potential of tested compounds was evaluated by determining the concentrations of total antioxidative status, total oxidative status, prooxidant antioxidant balance and the total sulfhydryl groups. Z score statistics were used to calculate the summary scores for antioxidative activity, prooxidative activity and oxy score. The tested compounds and ibuprofen demonstrated mild prooxidative activity ex vivo. Seven acids with substituents on one benzene ring exhibited better results than ibuprofen and were selected for in vivo testing. In vivo results demonstrated better antioxidant protection compared to ex vivo results. Compound g which contains nitro group on the benzene ring demonstrated the lowest oxy score, and four compounds exhibited better results than ibuprofen.
PB  - Pakistan Journal of Pharmaceutical Sciences
T2  - Pakistan Journal of Pharmaceutical Sciences
T1  - Ex vivo and in vivo antioxidant activity of β-hydroxy-β-arylalkanoic acids
VL  - 36
IS  - 5
SP  - 1367
EP  - 1374
DO  - 10.36721/PJPS.2023.36.5.REG.1367-1374.1
ER  - 
@article{
author = "Subošić, Branko and Kotur-Stevuljević, Jelena and Brborić, Jasmina and Janković, Tamara and Milenković, Marina and Ivković, Branka and Kostadinović, Jelena and Savić, Jelena",
year = "2023",
abstract = "The interplay between oxidative stress and inflammation is implicated in many chronic diseases including Alzheimer`s disease, cardiovascular diseases, diabetes and cancer. Thirteen β-hydroxy-β-arylalkanoic acids were previously synthesized and evaluated for their anti-inflammatory activity. The aim of this study was to asses ex vivo antioxidant activity of synthesized acids, as well as ibuprofen and to identify the compounds with the most promising results for further investigation on their capacity to counteract in vivo oxidative stress triggered by inflammation. The antioxidant potential of tested compounds was evaluated by determining the concentrations of total antioxidative status, total oxidative status, prooxidant antioxidant balance and the total sulfhydryl groups. Z score statistics were used to calculate the summary scores for antioxidative activity, prooxidative activity and oxy score. The tested compounds and ibuprofen demonstrated mild prooxidative activity ex vivo. Seven acids with substituents on one benzene ring exhibited better results than ibuprofen and were selected for in vivo testing. In vivo results demonstrated better antioxidant protection compared to ex vivo results. Compound g which contains nitro group on the benzene ring demonstrated the lowest oxy score, and four compounds exhibited better results than ibuprofen.",
publisher = "Pakistan Journal of Pharmaceutical Sciences",
journal = "Pakistan Journal of Pharmaceutical Sciences",
title = "Ex vivo and in vivo antioxidant activity of β-hydroxy-β-arylalkanoic acids",
volume = "36",
number = "5",
pages = "1367-1374",
doi = "10.36721/PJPS.2023.36.5.REG.1367-1374.1"
}
Subošić, B., Kotur-Stevuljević, J., Brborić, J., Janković, T., Milenković, M., Ivković, B., Kostadinović, J.,& Savić, J.. (2023). Ex vivo and in vivo antioxidant activity of β-hydroxy-β-arylalkanoic acids. in Pakistan Journal of Pharmaceutical Sciences
Pakistan Journal of Pharmaceutical Sciences., 36(5), 1367-1374.
https://doi.org/10.36721/PJPS.2023.36.5.REG.1367-1374.1
Subošić B, Kotur-Stevuljević J, Brborić J, Janković T, Milenković M, Ivković B, Kostadinović J, Savić J. Ex vivo and in vivo antioxidant activity of β-hydroxy-β-arylalkanoic acids. in Pakistan Journal of Pharmaceutical Sciences. 2023;36(5):1367-1374.
doi:10.36721/PJPS.2023.36.5.REG.1367-1374.1 .
Subošić, Branko, Kotur-Stevuljević, Jelena, Brborić, Jasmina, Janković, Tamara, Milenković, Marina, Ivković, Branka, Kostadinović, Jelena, Savić, Jelena, "Ex vivo and in vivo antioxidant activity of β-hydroxy-β-arylalkanoic acids" in Pakistan Journal of Pharmaceutical Sciences, 36, no. 5 (2023):1367-1374,
https://doi.org/10.36721/PJPS.2023.36.5.REG.1367-1374.1 . .

Hemijska analiza i antimikrobna aktivnost etarskih ulja samoniklog lovora sa područja Nacionalnog parka Skadarsko jezero, Crna Gora

Bojović, Dragica; Šoškić, Miomir; Ljumović, Iva; Žugić, Ana; Milenković, Marina; Tadić, Vanja

(Savez farmaceutskih udruženja Srbije, 2023)

TY  - CONF
AU  - Bojović, Dragica
AU  - Šoškić, Miomir
AU  - Ljumović, Iva
AU  - Žugić, Ana
AU  - Milenković, Marina
AU  - Tadić, Vanja
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5330
AB  - Laurus nobilis L., Lauraceae, u narodu poznat kao lovor, je cvetni, zimzeleni žbun koji
samoniklo raste u većem delu Crne Gore, a često se uzgaja i koristi kao aromatična, začinska i lekovita
biljka. Cilj ovog istraživanja je bio da se analizira hemijski sastav etarskog ulja (EU) ploda i lista, a
zatim testira antibakterijska i antifungalna aktivnost EU na sledećim sojevima: Staphylococcus aureus
ATCC25923, Enterococcus faecalis ATCC29212, Bacillus subtilis ATCC6633 Escherichia coli
ATCC25922, Klebsiella pneumoniae ATCC13083, Salmonella Abony NCTC6017, Pseudomonas
aeruginosa ATCC27853 i Candida albicans ATCC10231. Ispitivanje kvalitativnog i kvantitativnog
sastava etarskih ulja lista i plodova lovora izvršeno je gasnohromatografskom tehnikom spregnutom
sa masenom spektrometrijom (GC-MS). Utvrđeno je da je etarsko ulje ploda bogato 1,8-cineolom
(33,3%), α-terpenil acetatom (7,0%), α-pinenom (5,8%), β-elemenom (5,7%), sabinenom (5,3%), β-
pinenom (4,0%), borneolom (2,1%) i terpinen-4-olom (2,1%). Najvažnije komponente
identi�ikovane u EU listova su 1,8-cineol (35,1%), α-terpinil acetat (10,4%) i linalol (7,6%), između
ostalih, a u skladu su sa prethodno dobijenim literaturnim podacima (1). Dodatno, ispitivana su
antibakterijska i antifungalna svojstva EU lista i ploda lovora bujon mikrodilucionom metodom. EU
ploda je pokazao antibakterijsko i antifungalno svojstvo protiv skoro svih testiranih sojeva
mikroorganizama, dok je EU lista inhibiralo sledeće sojeve: Staphylococcus aureus ATCC25923,
Enterococcus faecalis ATCC29212, Bacillus subtilis ATCC6633 i Candida albicans ATCC10231.
Escherichia coli ATCC25922 je bakterijski soj koji je pokazao najveću otpornost na etarska ulja lovora,
kako ploda, tako i lista. Dobijeni rezultati za etarska ulja lovora i 1,8 -cineol, koji je njihov glavni
sastojak, su u skladu sa prethodnim studijama (2).
AB  - Laurus nobilis L., Lauraceae, popularly known as laurel, is a flowering, evergreen bush which
grows wildly in most parts of Montenegro, and is often cultivated and used as an aromatic, flavoring
spice and medicinal plant. The aim of this research was to analyze the chemical composition of the
essential oil (EO) of fruit and leaf, and afterwards antibacterial and antifungal activity of EOs on the
following strains: Staphylococcus aureus ATCC25923, Enterococcus faecalis ATCC29212, Bacillus
subtilis ATCC6633 Escherichia coli ATCC25922, Klebsiella pneumoniae ATCC13083, Salmonella Abony
NCTC6017, Pseudomonas aeruginosa ATCC27853 i Candida albicans ATCC10231. The qualitative and
quantitative composition of the EOs of fruit and leaves was carried out by using a gas
chromatographic analysis coupled with mass spectrometry (GC-MS). The EO of fruit was found to be
rich 1,8-cineole (33.3%), α-terpinyl acetate (7.0%), α-pinene (5.8%), β-elemene (5.7%), sabinene
(5.3%), β-pinene (4.0%), borneol (2.1%) and terpinene-4-ol (2.1%). The most important
components identified in the leaves EO were 1,8-cineol (35.1%), α-terpinyl acetate (10.4%) and
linalool (7.6%), among others, are in line with previous literature reports (1). In addition, the
antibacterial and antifungal properties of leaf and fruit laurel EOs were examined according to the
broth microdilution method. The fruit EO showed antibacterial and antifungal activities against
almost all strains of the microorganisms tested, whereas the leaf EO was able to inhibit:
Staphylococcus aureus ATCC25923, Enterococcus faecalis ATCC29212, Bacillus subtilis ATCC6633 and
Candida albicans ATCC10231. Escherichia coli ATCC25922 was bacterial strain that showed the
highest resistance to both tested laurel EOs. The results obtained herein for laurel EO and 1,8-cineole
as its main constituent are in accordance with previous studies (2).
PB  - Savez farmaceutskih udruženja Srbije
C3  - Arhiv za farmaciju
T1  - Hemijska analiza i antimikrobna aktivnost etarskih ulja samoniklog lovora sa područja Nacionalnog parka Skadarsko jezero, Crna Gora
T1  - Chemical analysis and antimicrobial activity of essential oils from wild laurel of National park Skadar lake, Montenegro
VL  - 73
IS  - Suppl. 4
SP  - S85
EP  - S86
UR  - https://hdl.handle.net/21.15107/rcub_farfar_5330
ER  - 
@conference{
author = "Bojović, Dragica and Šoškić, Miomir and Ljumović, Iva and Žugić, Ana and Milenković, Marina and Tadić, Vanja",
year = "2023",
abstract = "Laurus nobilis L., Lauraceae, u narodu poznat kao lovor, je cvetni, zimzeleni žbun koji
samoniklo raste u većem delu Crne Gore, a često se uzgaja i koristi kao aromatična, začinska i lekovita
biljka. Cilj ovog istraživanja je bio da se analizira hemijski sastav etarskog ulja (EU) ploda i lista, a
zatim testira antibakterijska i antifungalna aktivnost EU na sledećim sojevima: Staphylococcus aureus
ATCC25923, Enterococcus faecalis ATCC29212, Bacillus subtilis ATCC6633 Escherichia coli
ATCC25922, Klebsiella pneumoniae ATCC13083, Salmonella Abony NCTC6017, Pseudomonas
aeruginosa ATCC27853 i Candida albicans ATCC10231. Ispitivanje kvalitativnog i kvantitativnog
sastava etarskih ulja lista i plodova lovora izvršeno je gasnohromatografskom tehnikom spregnutom
sa masenom spektrometrijom (GC-MS). Utvrđeno je da je etarsko ulje ploda bogato 1,8-cineolom
(33,3%), α-terpenil acetatom (7,0%), α-pinenom (5,8%), β-elemenom (5,7%), sabinenom (5,3%), β-
pinenom (4,0%), borneolom (2,1%) i terpinen-4-olom (2,1%). Najvažnije komponente
identi�ikovane u EU listova su 1,8-cineol (35,1%), α-terpinil acetat (10,4%) i linalol (7,6%), između
ostalih, a u skladu su sa prethodno dobijenim literaturnim podacima (1). Dodatno, ispitivana su
antibakterijska i antifungalna svojstva EU lista i ploda lovora bujon mikrodilucionom metodom. EU
ploda je pokazao antibakterijsko i antifungalno svojstvo protiv skoro svih testiranih sojeva
mikroorganizama, dok je EU lista inhibiralo sledeće sojeve: Staphylococcus aureus ATCC25923,
Enterococcus faecalis ATCC29212, Bacillus subtilis ATCC6633 i Candida albicans ATCC10231.
Escherichia coli ATCC25922 je bakterijski soj koji je pokazao najveću otpornost na etarska ulja lovora,
kako ploda, tako i lista. Dobijeni rezultati za etarska ulja lovora i 1,8 -cineol, koji je njihov glavni
sastojak, su u skladu sa prethodnim studijama (2)., Laurus nobilis L., Lauraceae, popularly known as laurel, is a flowering, evergreen bush which
grows wildly in most parts of Montenegro, and is often cultivated and used as an aromatic, flavoring
spice and medicinal plant. The aim of this research was to analyze the chemical composition of the
essential oil (EO) of fruit and leaf, and afterwards antibacterial and antifungal activity of EOs on the
following strains: Staphylococcus aureus ATCC25923, Enterococcus faecalis ATCC29212, Bacillus
subtilis ATCC6633 Escherichia coli ATCC25922, Klebsiella pneumoniae ATCC13083, Salmonella Abony
NCTC6017, Pseudomonas aeruginosa ATCC27853 i Candida albicans ATCC10231. The qualitative and
quantitative composition of the EOs of fruit and leaves was carried out by using a gas
chromatographic analysis coupled with mass spectrometry (GC-MS). The EO of fruit was found to be
rich 1,8-cineole (33.3%), α-terpinyl acetate (7.0%), α-pinene (5.8%), β-elemene (5.7%), sabinene
(5.3%), β-pinene (4.0%), borneol (2.1%) and terpinene-4-ol (2.1%). The most important
components identified in the leaves EO were 1,8-cineol (35.1%), α-terpinyl acetate (10.4%) and
linalool (7.6%), among others, are in line with previous literature reports (1). In addition, the
antibacterial and antifungal properties of leaf and fruit laurel EOs were examined according to the
broth microdilution method. The fruit EO showed antibacterial and antifungal activities against
almost all strains of the microorganisms tested, whereas the leaf EO was able to inhibit:
Staphylococcus aureus ATCC25923, Enterococcus faecalis ATCC29212, Bacillus subtilis ATCC6633 and
Candida albicans ATCC10231. Escherichia coli ATCC25922 was bacterial strain that showed the
highest resistance to both tested laurel EOs. The results obtained herein for laurel EO and 1,8-cineole
as its main constituent are in accordance with previous studies (2).",
publisher = "Savez farmaceutskih udruženja Srbije",
journal = "Arhiv za farmaciju",
title = "Hemijska analiza i antimikrobna aktivnost etarskih ulja samoniklog lovora sa područja Nacionalnog parka Skadarsko jezero, Crna Gora, Chemical analysis and antimicrobial activity of essential oils from wild laurel of National park Skadar lake, Montenegro",
volume = "73",
number = "Suppl. 4",
pages = "S85-S86",
url = "https://hdl.handle.net/21.15107/rcub_farfar_5330"
}
Bojović, D., Šoškić, M., Ljumović, I., Žugić, A., Milenković, M.,& Tadić, V.. (2023). Hemijska analiza i antimikrobna aktivnost etarskih ulja samoniklog lovora sa područja Nacionalnog parka Skadarsko jezero, Crna Gora. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije., 73(Suppl. 4), S85-S86.
https://hdl.handle.net/21.15107/rcub_farfar_5330
Bojović D, Šoškić M, Ljumović I, Žugić A, Milenković M, Tadić V. Hemijska analiza i antimikrobna aktivnost etarskih ulja samoniklog lovora sa područja Nacionalnog parka Skadarsko jezero, Crna Gora. in Arhiv za farmaciju. 2023;73(Suppl. 4):S85-S86.
https://hdl.handle.net/21.15107/rcub_farfar_5330 .
Bojović, Dragica, Šoškić, Miomir, Ljumović, Iva, Žugić, Ana, Milenković, Marina, Tadić, Vanja, "Hemijska analiza i antimikrobna aktivnost etarskih ulja samoniklog lovora sa područja Nacionalnog parka Skadarsko jezero, Crna Gora" in Arhiv za farmaciju, 73, no. Suppl. 4 (2023):S85-S86,
https://hdl.handle.net/21.15107/rcub_farfar_5330 .

Inhibition of A-amylase in vitro and in vivo hypoglycemic effect of methanol extract of Alchemilla viridiflora Rothm

Radović-Selgrad, Jelena; Ušjak, Dušan; Milenković, Marina; Kundaković-Vasović, Tatjana

(Savez farmaceutskih udruženja Srbije (SFUS), 2022)

TY  - CONF
AU  - Radović-Selgrad, Jelena
AU  - Ušjak, Dušan
AU  - Milenković, Marina
AU  - Kundaković-Vasović, Tatjana
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4580
AB  - Dry methanol extract (DER 3.95:1) of aerial flowering parts of Alchemilla viridiflora
Rothm., Rosaceae, obtained after successive extraction with cyclohexane and
dichloromethane, predominantly contains polyphenols, tannins (3.74%), mostly ellagic, and
flavonoids (0.30%), hexosides of quercetin and kaempferol. It shows ACE inhibitory and
anti-Helicobacter pylori activity in vitro (1). Based on the traditional use of the common A.
vulgaris in the treatment of diabetes (2), the effect of this A. viridiflora extract on α-amylase
activity in vitro and lowering blood glucose in rats were investigated. α-Amylase inhibitory
activity was assessed using the 3,5-dinitrosalicylic acid method. Extract in doses of 50, 100
and 200 mg/kg, p.o., was administered to streptozotocin-induced diabetic rats for 20 days,
and blood glucose level and weight of rats were monitored during treatment. Extract
inhibited α-amylase activity at IC 50 5.47 ± 0.30 mg/mL. A dose of 200 mg/kg significantly
decreased blood glucose level after 10 (32.2%) and 20 days of treatment (38.3%). The effect
of this dose was similar to the effect of the reference drug, glibenclamide. A dose of 100
mg/kg significantly increased glucose level by day 10 (50.5%) and a reduction in blood sugar
level of 51.2% was observed only after 10 days. Body weight was correlated with changes in
blood sugar levels. A dose of 50 mg/kg had no statistically significant effect. Results indicate
a significant potential of A. viridiflora aerial parts in the treatment of diabetes, which must be
confirmed by additional studies, and active ingredients need to be identified.
AB  - Suvi metanolni ekstrakt (DER 3,95:1) nadzemnih delova u cvetu Alchemilla viridiflora
Rothm., Rosaceae, dobijen nakon sukcesivne ekstrakcije cikloheksanom i dihlormetanom,
sadrži visok nivo polifenola, tanina (3,74%), uglavnom elagnih, i flavonoida (0,30%),
heksozida kvercetina i kemferola. Pokazuje ACE inhibitornu i anti-Helicobacter pylori
aktivnost in vitro (1). Na osnovu podataka o tradicionalnoj upotrebi herbe A. vulgaris,
najčešće korišćene Alchemilla vrste, u lečenju dijabetesa (2), ispitivan je uticaj navedenog
ekstrakta A. viridiflora na aktivnost α-amilaze in vitro i na snižavanje nivoa glukoze u krvi
kod pacova. Uticaj na aktivnost α-amilaze procenjen je primenom metode sa 3,5-
dinitrosalicilnom kiselinom. Ekstrakt A. viridiflora u dozama od 50, 100 i 200 mg/kg, p.o.,
aplikovan je pacovima sa dijabetesom izazvanim streptozotocinom tokom 20 dana, a nivoi
glukoze u krvi i težina pacova su praćeni u određenim vremenskim intervalima tokom
trajanja tretmana. Ekstrakt je inhibirao aktivnost α-amilaze, a vrednost IC 50 iznosila je
5,47±0,30 mg/mL. Doza od 200 mg/kg značajno je smanjila nivo glukoze u krvi nakon 10
(32,2%) i 20 dana tretmana (38,3%). Efekat ove doze bio je sličan efektu referentnog leka,
glibenklamida. S druge strane, doza od 100 mg/kg značajno je povećala nivo glukoze do 10.
dana (50,5%) a do značajnog poboljšanja, tj. sniženja nivoa šećera od 51,2% dovela je tek
nakon 10 dana. Telesna težina bila je u korelaciji sa promenama nivoa šećera u krvi. Doza od
50 mg/kg nije imala statistički značajan efekat. Rezultati ukazuju na značajan potencijal
herbe A. viridiflora u lečenju dijabetesa, što mora biti potvrđeno dodatnim studijama, a
aktivni sastojci identifikovani.
PB  - Savez farmaceutskih udruženja Srbije (SFUS)
C3  - Arhiv za farmaciju
T1  - Inhibition of A-amylase in vitro and in vivo hypoglycemic effect of methanol extract of Alchemilla viridiflora Rothm
T1  - Inhibicija Α‐amilaze in vitro i in vivo hipoglikemijski efekat metanolnog ekstrakta herbe Alchemilla viridiflora Rothm
VL  - 72
IS  - 4 suplement
SP  - S461
EP  - S462
UR  - https://hdl.handle.net/21.15107/rcub_farfar_4580
ER  - 
@conference{
author = "Radović-Selgrad, Jelena and Ušjak, Dušan and Milenković, Marina and Kundaković-Vasović, Tatjana",
year = "2022",
abstract = "Dry methanol extract (DER 3.95:1) of aerial flowering parts of Alchemilla viridiflora
Rothm., Rosaceae, obtained after successive extraction with cyclohexane and
dichloromethane, predominantly contains polyphenols, tannins (3.74%), mostly ellagic, and
flavonoids (0.30%), hexosides of quercetin and kaempferol. It shows ACE inhibitory and
anti-Helicobacter pylori activity in vitro (1). Based on the traditional use of the common A.
vulgaris in the treatment of diabetes (2), the effect of this A. viridiflora extract on α-amylase
activity in vitro and lowering blood glucose in rats were investigated. α-Amylase inhibitory
activity was assessed using the 3,5-dinitrosalicylic acid method. Extract in doses of 50, 100
and 200 mg/kg, p.o., was administered to streptozotocin-induced diabetic rats for 20 days,
and blood glucose level and weight of rats were monitored during treatment. Extract
inhibited α-amylase activity at IC 50 5.47 ± 0.30 mg/mL. A dose of 200 mg/kg significantly
decreased blood glucose level after 10 (32.2%) and 20 days of treatment (38.3%). The effect
of this dose was similar to the effect of the reference drug, glibenclamide. A dose of 100
mg/kg significantly increased glucose level by day 10 (50.5%) and a reduction in blood sugar
level of 51.2% was observed only after 10 days. Body weight was correlated with changes in
blood sugar levels. A dose of 50 mg/kg had no statistically significant effect. Results indicate
a significant potential of A. viridiflora aerial parts in the treatment of diabetes, which must be
confirmed by additional studies, and active ingredients need to be identified., Suvi metanolni ekstrakt (DER 3,95:1) nadzemnih delova u cvetu Alchemilla viridiflora
Rothm., Rosaceae, dobijen nakon sukcesivne ekstrakcije cikloheksanom i dihlormetanom,
sadrži visok nivo polifenola, tanina (3,74%), uglavnom elagnih, i flavonoida (0,30%),
heksozida kvercetina i kemferola. Pokazuje ACE inhibitornu i anti-Helicobacter pylori
aktivnost in vitro (1). Na osnovu podataka o tradicionalnoj upotrebi herbe A. vulgaris,
najčešće korišćene Alchemilla vrste, u lečenju dijabetesa (2), ispitivan je uticaj navedenog
ekstrakta A. viridiflora na aktivnost α-amilaze in vitro i na snižavanje nivoa glukoze u krvi
kod pacova. Uticaj na aktivnost α-amilaze procenjen je primenom metode sa 3,5-
dinitrosalicilnom kiselinom. Ekstrakt A. viridiflora u dozama od 50, 100 i 200 mg/kg, p.o.,
aplikovan je pacovima sa dijabetesom izazvanim streptozotocinom tokom 20 dana, a nivoi
glukoze u krvi i težina pacova su praćeni u određenim vremenskim intervalima tokom
trajanja tretmana. Ekstrakt je inhibirao aktivnost α-amilaze, a vrednost IC 50 iznosila je
5,47±0,30 mg/mL. Doza od 200 mg/kg značajno je smanjila nivo glukoze u krvi nakon 10
(32,2%) i 20 dana tretmana (38,3%). Efekat ove doze bio je sličan efektu referentnog leka,
glibenklamida. S druge strane, doza od 100 mg/kg značajno je povećala nivo glukoze do 10.
dana (50,5%) a do značajnog poboljšanja, tj. sniženja nivoa šećera od 51,2% dovela je tek
nakon 10 dana. Telesna težina bila je u korelaciji sa promenama nivoa šećera u krvi. Doza od
50 mg/kg nije imala statistički značajan efekat. Rezultati ukazuju na značajan potencijal
herbe A. viridiflora u lečenju dijabetesa, što mora biti potvrđeno dodatnim studijama, a
aktivni sastojci identifikovani.",
publisher = "Savez farmaceutskih udruženja Srbije (SFUS)",
journal = "Arhiv za farmaciju",
title = "Inhibition of A-amylase in vitro and in vivo hypoglycemic effect of methanol extract of Alchemilla viridiflora Rothm, Inhibicija Α‐amilaze in vitro i in vivo hipoglikemijski efekat metanolnog ekstrakta herbe Alchemilla viridiflora Rothm",
volume = "72",
number = "4 suplement",
pages = "S461-S462",
url = "https://hdl.handle.net/21.15107/rcub_farfar_4580"
}
Radović-Selgrad, J., Ušjak, D., Milenković, M.,& Kundaković-Vasović, T.. (2022). Inhibition of A-amylase in vitro and in vivo hypoglycemic effect of methanol extract of Alchemilla viridiflora Rothm. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije (SFUS)., 72(4 suplement), S461-S462.
https://hdl.handle.net/21.15107/rcub_farfar_4580
Radović-Selgrad J, Ušjak D, Milenković M, Kundaković-Vasović T. Inhibition of A-amylase in vitro and in vivo hypoglycemic effect of methanol extract of Alchemilla viridiflora Rothm. in Arhiv za farmaciju. 2022;72(4 suplement):S461-S462.
https://hdl.handle.net/21.15107/rcub_farfar_4580 .
Radović-Selgrad, Jelena, Ušjak, Dušan, Milenković, Marina, Kundaković-Vasović, Tatjana, "Inhibition of A-amylase in vitro and in vivo hypoglycemic effect of methanol extract of Alchemilla viridiflora Rothm" in Arhiv za farmaciju, 72, no. 4 suplement (2022):S461-S462,
https://hdl.handle.net/21.15107/rcub_farfar_4580 .

Composition and antimicrobial activity of essential oils of Salvia fruticosa and Salvia ringens (Lamiaceae)

Stojanović, Danilo; Marčetić, Mirjana; Ušjak, Dušan; Milenković, Marina

(Belgrade : Military Medical Academy, INI, 2022)

TY  - JOUR
AU  - Stojanović, Danilo
AU  - Marčetić, Mirjana
AU  - Ušjak, Dušan
AU  - Milenković, Marina
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4061
AB  - Background/Aim. Plant essential oils (EOs) can have a significant antibacterial effect especially through additive or synergistic action as antibiotic adjuvants. We investi-gated the composition and activity of EOs of two species of genus Salvia (S) from Greece with the aim to deter-mine their antimicrobial activity as well as the activity in combination with selected antibiotics. Methods. The aerial parts of wild-growing S. fruticosa and S. ringens were subjected to a steam distillation and the obtained EOs were analyzed by gas chromatography and gas chroma-tography/mass spectrometry. The broth-microdilution method was used in order to determine the minimum in-hibitory concentrations (MICs) of EOs on seven strains of bacteria and one yeast. Antimicrobial activity of the combination of EO and antibiotics was investigated by checkerboard method and estimated by calculating frac-tional inhibitory concentration (FIC) of each component and fractional inhibitory concentration index (FICI). Re-sults. Dominant component of S. fruticosa EO was trans-thujone (54.2%) and for S. ringens EO it was α-pinene (28.1%). The MICs of EOs of both species were in the range from 200 μg/mL to > 500 μg/mL. The strongest antimicrobial effect was achieved against Bacillus subtilis and Candida albicans. According to FICI values, EO of S. fruticosa had additive effect with ciprofloxacin against most of bacterial strains but not with amikacin. Conclu-sion. The essential oils of S. ringens and S. fruticosa showed modest antimicrobial activity. However, the es-sential oil of S. fruticosa showed a promising additive ef-fect in combination with ciprofloxacin.
AB  - Uvod/Cilj. Etarska ulja različitih biljaka mogu imati značajna antibakterijska svojstva, posebno kao adjuvanti antibiotika sa kojima ostvaruju aditivno ili sinergistično dejstvo. Ispitivali smo sastav i aktivnost etarskih ulja dve vrste roda Salvia (S) iz Grčke sa ciljem da odredimo njihovu antimkrobnu aktivnost, kao i dejstvo u kombi-naciji sa odabranim antibioticima. Metode. Nadzemni delovi samoniklih S. fruticosa i S. ringens su destilovani vodenom parom i dobijena etarska ulja su analizirana gasnom hromatografijom i gasnom hromatografijom sa masenom spektrometrijom. Radi određivanja minimalnih inhibitornih koncentracija (MICs) etarskog ulja na sedam sojeva bakterija i na jednoj patogenoj gljivici korišćena je mikrodiluciona metoda. Antimikrobna aktivnost kombi-nacije etarskog ulja i antibiotika ispitana je checkerboard metodom i procenjena je na osnovu frakcione inhibi-torne koncentracije (FIC) svake komponente i indeksa frakcione inhibitorne koncentracije (FICI). Resultati. Dominantna komponenta etarskog ulja S. fruticosa je bio trans-tujon (54,2%), a etarskog ulja S. ringens α-pinen (28,1%). MICs etarskog ulja obe vrste su bile u opsegu od 200 μg/mL do > 500 μg/mL. Najsnažnija anti-mikrobna aktivnost ostvarena je protiv Bacillus subtilis i Candida albicans. Na osnovu FICI vrednosti, etarsko ulje S. fruticosa je sa ciprofloksacinom, ali ne i sa amikacinom imalo aditivni efekat protiv većine bakterijskih sojeva. Zaključak. Etarska ulja S. ringens i S. fruticosa su pokazala skromnu antimikrobnu aktivnost, ali je etarsko ulje S. fru-ticosa u kombinaciji sa ciprofloksacinom ispoljilo značajan aditivni efekat.
PB  - Belgrade : Military Medical Academy, INI
T2  - Vojnosanitetski pregled
T1  - Composition and antimicrobial activity of essential oils of Salvia fruticosa and Salvia ringens (Lamiaceae)
T1  - Sastav i antimikrobna aktivnost etarskih ulja Salvia fruticosa i Salvia ringens (Lamiaceae)
VL  - 79
IS  - 1
SP  - 62
EP  - 68
DO  - 10.2298/VSP200508083S
ER  - 
@article{
author = "Stojanović, Danilo and Marčetić, Mirjana and Ušjak, Dušan and Milenković, Marina",
year = "2022",
abstract = "Background/Aim. Plant essential oils (EOs) can have a significant antibacterial effect especially through additive or synergistic action as antibiotic adjuvants. We investi-gated the composition and activity of EOs of two species of genus Salvia (S) from Greece with the aim to deter-mine their antimicrobial activity as well as the activity in combination with selected antibiotics. Methods. The aerial parts of wild-growing S. fruticosa and S. ringens were subjected to a steam distillation and the obtained EOs were analyzed by gas chromatography and gas chroma-tography/mass spectrometry. The broth-microdilution method was used in order to determine the minimum in-hibitory concentrations (MICs) of EOs on seven strains of bacteria and one yeast. Antimicrobial activity of the combination of EO and antibiotics was investigated by checkerboard method and estimated by calculating frac-tional inhibitory concentration (FIC) of each component and fractional inhibitory concentration index (FICI). Re-sults. Dominant component of S. fruticosa EO was trans-thujone (54.2%) and for S. ringens EO it was α-pinene (28.1%). The MICs of EOs of both species were in the range from 200 μg/mL to > 500 μg/mL. The strongest antimicrobial effect was achieved against Bacillus subtilis and Candida albicans. According to FICI values, EO of S. fruticosa had additive effect with ciprofloxacin against most of bacterial strains but not with amikacin. Conclu-sion. The essential oils of S. ringens and S. fruticosa showed modest antimicrobial activity. However, the es-sential oil of S. fruticosa showed a promising additive ef-fect in combination with ciprofloxacin., Uvod/Cilj. Etarska ulja različitih biljaka mogu imati značajna antibakterijska svojstva, posebno kao adjuvanti antibiotika sa kojima ostvaruju aditivno ili sinergistično dejstvo. Ispitivali smo sastav i aktivnost etarskih ulja dve vrste roda Salvia (S) iz Grčke sa ciljem da odredimo njihovu antimkrobnu aktivnost, kao i dejstvo u kombi-naciji sa odabranim antibioticima. Metode. Nadzemni delovi samoniklih S. fruticosa i S. ringens su destilovani vodenom parom i dobijena etarska ulja su analizirana gasnom hromatografijom i gasnom hromatografijom sa masenom spektrometrijom. Radi određivanja minimalnih inhibitornih koncentracija (MICs) etarskog ulja na sedam sojeva bakterija i na jednoj patogenoj gljivici korišćena je mikrodiluciona metoda. Antimikrobna aktivnost kombi-nacije etarskog ulja i antibiotika ispitana je checkerboard metodom i procenjena je na osnovu frakcione inhibi-torne koncentracije (FIC) svake komponente i indeksa frakcione inhibitorne koncentracije (FICI). Resultati. Dominantna komponenta etarskog ulja S. fruticosa je bio trans-tujon (54,2%), a etarskog ulja S. ringens α-pinen (28,1%). MICs etarskog ulja obe vrste su bile u opsegu od 200 μg/mL do > 500 μg/mL. Najsnažnija anti-mikrobna aktivnost ostvarena je protiv Bacillus subtilis i Candida albicans. Na osnovu FICI vrednosti, etarsko ulje S. fruticosa je sa ciprofloksacinom, ali ne i sa amikacinom imalo aditivni efekat protiv većine bakterijskih sojeva. Zaključak. Etarska ulja S. ringens i S. fruticosa su pokazala skromnu antimikrobnu aktivnost, ali je etarsko ulje S. fru-ticosa u kombinaciji sa ciprofloksacinom ispoljilo značajan aditivni efekat.",
publisher = "Belgrade : Military Medical Academy, INI",
journal = "Vojnosanitetski pregled",
title = "Composition and antimicrobial activity of essential oils of Salvia fruticosa and Salvia ringens (Lamiaceae), Sastav i antimikrobna aktivnost etarskih ulja Salvia fruticosa i Salvia ringens (Lamiaceae)",
volume = "79",
number = "1",
pages = "62-68",
doi = "10.2298/VSP200508083S"
}
Stojanović, D., Marčetić, M., Ušjak, D.,& Milenković, M.. (2022). Composition and antimicrobial activity of essential oils of Salvia fruticosa and Salvia ringens (Lamiaceae). in Vojnosanitetski pregled
Belgrade : Military Medical Academy, INI., 79(1), 62-68.
https://doi.org/10.2298/VSP200508083S
Stojanović D, Marčetić M, Ušjak D, Milenković M. Composition and antimicrobial activity of essential oils of Salvia fruticosa and Salvia ringens (Lamiaceae). in Vojnosanitetski pregled. 2022;79(1):62-68.
doi:10.2298/VSP200508083S .
Stojanović, Danilo, Marčetić, Mirjana, Ušjak, Dušan, Milenković, Marina, "Composition and antimicrobial activity of essential oils of Salvia fruticosa and Salvia ringens (Lamiaceae)" in Vojnosanitetski pregled, 79, no. 1 (2022):62-68,
https://doi.org/10.2298/VSP200508083S . .

Selenium nanoparticles render pandrug-resistant Acinetobacter baumannii susceptible to colistin

Ušjak, Dušan; Novović, Katarina; Filipić, Brankica; Kojić, Milan; Filipović, Nenad; Stevanović, Magdalena M.; Arsenović-Ranin, Nevena; Milenković, Marina

(Macedonian Pharmaceutical Association, 2022)

TY  - CONF
AU  - Ušjak, Dušan
AU  - Novović, Katarina
AU  - Filipić, Brankica
AU  - Kojić, Milan
AU  - Filipović, Nenad
AU  - Stevanović, Magdalena M.
AU  - Arsenović-Ranin, Nevena
AU  - Milenković, Marina
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5133
AB  - Colistin is used as a “last resort” drug in the treatment
of carbapenem-resistant Acinetobacter baumannii
infections. Though not the most convenient option due to
the serious side effects, this antibiotic can be very efficient
if administered properly (Garnacho-Montero and Timsit,
2019). However, for several years now, we are witnessing
a steady emergence of colistin-resistant (ColR) strains, with
the constant threat of a sudden burst worldwide (Nowak et
al., 2017). Having in mind that these strains are usually
non-susceptible to any of the existing treatments, i.e.
pandrug-resistant (PDR), the development of new
therapeutic strategies is desperately needed.
In the present study, we showed that colistin
susceptibility of ColR A. baumannii strains can be fully
restored in the presence of very low amounts of selenium
nanoparticles (SeNPs). To demonstrate potent synergistic
interactions between colistin and SeNPs, we performed
checkerboard and time-kill analyses.
PB  - Macedonian Pharmaceutical Association
C3  - Macedonian Pharmaceutical Bulletin
T1  - Selenium nanoparticles render pandrug-resistant Acinetobacter  baumannii susceptible to colistin
VL  - 68
IS  - Suppl. 1
SP  - 295
EP  - 296
DO  - 10.33320/maced.pharm.bull.2022.68.03.142
ER  - 
@conference{
author = "Ušjak, Dušan and Novović, Katarina and Filipić, Brankica and Kojić, Milan and Filipović, Nenad and Stevanović, Magdalena M. and Arsenović-Ranin, Nevena and Milenković, Marina",
year = "2022",
abstract = "Colistin is used as a “last resort” drug in the treatment
of carbapenem-resistant Acinetobacter baumannii
infections. Though not the most convenient option due to
the serious side effects, this antibiotic can be very efficient
if administered properly (Garnacho-Montero and Timsit,
2019). However, for several years now, we are witnessing
a steady emergence of colistin-resistant (ColR) strains, with
the constant threat of a sudden burst worldwide (Nowak et
al., 2017). Having in mind that these strains are usually
non-susceptible to any of the existing treatments, i.e.
pandrug-resistant (PDR), the development of new
therapeutic strategies is desperately needed.
In the present study, we showed that colistin
susceptibility of ColR A. baumannii strains can be fully
restored in the presence of very low amounts of selenium
nanoparticles (SeNPs). To demonstrate potent synergistic
interactions between colistin and SeNPs, we performed
checkerboard and time-kill analyses.",
publisher = "Macedonian Pharmaceutical Association",
journal = "Macedonian Pharmaceutical Bulletin",
title = "Selenium nanoparticles render pandrug-resistant Acinetobacter  baumannii susceptible to colistin",
volume = "68",
number = "Suppl. 1",
pages = "295-296",
doi = "10.33320/maced.pharm.bull.2022.68.03.142"
}
Ušjak, D., Novović, K., Filipić, B., Kojić, M., Filipović, N., Stevanović, M. M., Arsenović-Ranin, N.,& Milenković, M.. (2022). Selenium nanoparticles render pandrug-resistant Acinetobacter  baumannii susceptible to colistin. in Macedonian Pharmaceutical Bulletin
Macedonian Pharmaceutical Association., 68(Suppl. 1), 295-296.
https://doi.org/10.33320/maced.pharm.bull.2022.68.03.142
Ušjak D, Novović K, Filipić B, Kojić M, Filipović N, Stevanović MM, Arsenović-Ranin N, Milenković M. Selenium nanoparticles render pandrug-resistant Acinetobacter  baumannii susceptible to colistin. in Macedonian Pharmaceutical Bulletin. 2022;68(Suppl. 1):295-296.
doi:10.33320/maced.pharm.bull.2022.68.03.142 .
Ušjak, Dušan, Novović, Katarina, Filipić, Brankica, Kojić, Milan, Filipović, Nenad, Stevanović, Magdalena M., Arsenović-Ranin, Nevena, Milenković, Marina, "Selenium nanoparticles render pandrug-resistant Acinetobacter  baumannii susceptible to colistin" in Macedonian Pharmaceutical Bulletin, 68, no. Suppl. 1 (2022):295-296,
https://doi.org/10.33320/maced.pharm.bull.2022.68.03.142 . .

Synthesis and characterization of a collagen-based composite material containing selenium nanoparticles

Stevanović, Magdalena M.; Filipović, Nenad; Kuzmanović, Maja; Tomić, Nina; Ušjak, Dušan; Milenković, Marina; Zheng, Kai; Stampfl, Juergen; Boccaccini, Aldo R.

(SAGE Publications Ltd, 2022)

TY  - JOUR
AU  - Stevanović, Magdalena M.
AU  - Filipović, Nenad
AU  - Kuzmanović, Maja
AU  - Tomić, Nina
AU  - Ušjak, Dušan
AU  - Milenković, Marina
AU  - Zheng, Kai
AU  - Stampfl, Juergen
AU  - Boccaccini, Aldo R.
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4357
AB  - Multidrug-resistant bacterial strains represent an emerging global health threat and a great obstacle for bone tissue engineering. One of the major components of the extracellular matrix of the bone is a collagen protein, while selenium is an element that has antimicrobial potential, and is also important for bone metabolism and bone health. Here we represent the incorporation of selenium nanoparticles (SeNPs) synthesized by the green chemical reduction method into collagen gels to produce a composite material, collagen/SeNPs, with antimicrobial properties. The samples were comprehensively characterized by zeta potential measurements, dynamic light scattering inductively coupled plasma-mass spectrometry (ICP-MS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), optical microscopy, field-emission scanning electron microscopy (FE-SEM), and differential scanning calorimetry The cytotoxicity of the SeNPS, as well as collagen/SeNPs, was tested on the MRC-5 cells. It was revealed that collagen/SeNPS expressed a lower cytotoxic effect. Collagen/SeNPs showed significant antibacterial activity against all tested Gram-positive strains, the major causative agents of orthopedic infections as well as Candida albicans. Furthermore, three-dimensional β-tricalcium phosphate (3D-TCP) scaffolds were fabricated by a well-established 3D printing (lithography) method, and afterward preliminary coated by newly-synthesized SeNPs or collagen/SeNPs. In addition, uncoated 3D-TCP scaffolds as well as coated by collagen/SeNPs were subjected to biofilm formation. The production of Staphylococcus aureus biofilm on coated scaffolds by collagen/SeNPs was significantly reduced compared to the uncoated ones.
PB  - SAGE Publications Ltd
T2  - Journal of Biomaterials Applications
T1  - Synthesis and characterization of a collagen-based composite material containing selenium nanoparticles
VL  - 36
IS  - 10
SP  - 1800
EP  - 1811
DO  - 10.1177/08853282211073731
ER  - 
@article{
author = "Stevanović, Magdalena M. and Filipović, Nenad and Kuzmanović, Maja and Tomić, Nina and Ušjak, Dušan and Milenković, Marina and Zheng, Kai and Stampfl, Juergen and Boccaccini, Aldo R.",
year = "2022",
abstract = "Multidrug-resistant bacterial strains represent an emerging global health threat and a great obstacle for bone tissue engineering. One of the major components of the extracellular matrix of the bone is a collagen protein, while selenium is an element that has antimicrobial potential, and is also important for bone metabolism and bone health. Here we represent the incorporation of selenium nanoparticles (SeNPs) synthesized by the green chemical reduction method into collagen gels to produce a composite material, collagen/SeNPs, with antimicrobial properties. The samples were comprehensively characterized by zeta potential measurements, dynamic light scattering inductively coupled plasma-mass spectrometry (ICP-MS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), optical microscopy, field-emission scanning electron microscopy (FE-SEM), and differential scanning calorimetry The cytotoxicity of the SeNPS, as well as collagen/SeNPs, was tested on the MRC-5 cells. It was revealed that collagen/SeNPS expressed a lower cytotoxic effect. Collagen/SeNPs showed significant antibacterial activity against all tested Gram-positive strains, the major causative agents of orthopedic infections as well as Candida albicans. Furthermore, three-dimensional β-tricalcium phosphate (3D-TCP) scaffolds were fabricated by a well-established 3D printing (lithography) method, and afterward preliminary coated by newly-synthesized SeNPs or collagen/SeNPs. In addition, uncoated 3D-TCP scaffolds as well as coated by collagen/SeNPs were subjected to biofilm formation. The production of Staphylococcus aureus biofilm on coated scaffolds by collagen/SeNPs was significantly reduced compared to the uncoated ones.",
publisher = "SAGE Publications Ltd",
journal = "Journal of Biomaterials Applications",
title = "Synthesis and characterization of a collagen-based composite material containing selenium nanoparticles",
volume = "36",
number = "10",
pages = "1800-1811",
doi = "10.1177/08853282211073731"
}
Stevanović, M. M., Filipović, N., Kuzmanović, M., Tomić, N., Ušjak, D., Milenković, M., Zheng, K., Stampfl, J.,& Boccaccini, A. R.. (2022). Synthesis and characterization of a collagen-based composite material containing selenium nanoparticles. in Journal of Biomaterials Applications
SAGE Publications Ltd., 36(10), 1800-1811.
https://doi.org/10.1177/08853282211073731
Stevanović MM, Filipović N, Kuzmanović M, Tomić N, Ušjak D, Milenković M, Zheng K, Stampfl J, Boccaccini AR. Synthesis and characterization of a collagen-based composite material containing selenium nanoparticles. in Journal of Biomaterials Applications. 2022;36(10):1800-1811.
doi:10.1177/08853282211073731 .
Stevanović, Magdalena M., Filipović, Nenad, Kuzmanović, Maja, Tomić, Nina, Ušjak, Dušan, Milenković, Marina, Zheng, Kai, Stampfl, Juergen, Boccaccini, Aldo R., "Synthesis and characterization of a collagen-based composite material containing selenium nanoparticles" in Journal of Biomaterials Applications, 36, no. 10 (2022):1800-1811,
https://doi.org/10.1177/08853282211073731 . .
1
1

In vitro colistin susceptibility of pandrug-resistant Ac. baumannii is restored in the presence of selenium nanoparticles

Ušjak, Dušan; Novović, Katarina; Filipić, Brankica; Kojić, Milan; Filipović, Nenad; Stevanović, Magdalena; Milenković, Marina

(John Wiley and Sons Inc, 2022)

TY  - JOUR
AU  - Ušjak, Dušan
AU  - Novović, Katarina
AU  - Filipić, Brankica
AU  - Kojić, Milan
AU  - Filipović, Nenad
AU  - Stevanović, Magdalena
AU  - Milenković, Marina
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4177
AB  - Aims: To investigate the synergistic activity of colistin and selenium nanoparticles (SeNPs) against pandrug-resistant (PDR) Ac. baumannii. Methods and Results: Chequerboard and time-kill assays were employed to ex- plore the potential synergistic interactions between colistin and SeNPs against Ac. baumannii isolates (8), previously determined as colistin-resistant (MIC range 16– 256 μg ml−1 ). Also, whole-genome sequencing (WGS) and gene expression analyses were used to elucidate the mechanisms of colistin resistance. Exceptionally strong synergistic activity (FICI range 0.004–0.035) of colistin and SeNPs against colistin- resistant isolates was revealed. Colistin (0.5 or 1 μg ml −1 ) used in combination with SeNPs (0.5 μg ml−1 ) was able to reduce initial inoculum during the first 4 h of incuba- tion, in contrast to colistin (0.5, 1 or 2 μg ml−1 ) alone. Conclusions: These findings propose colistin/SeNPs combination as a new option to fight PDR Ac. baumannii, the therapeutic possibilities of which should be proved in future in vivo studies. Significance and Impact of Study: Here we present the first evidence of synergy between colistin and selenium compounds against bacteria in general. Also, WGS and gene expression analyses provide some new insights into Ac. baumannii colistin resistance mechanisms.
PB  - John Wiley and Sons Inc
T2  - Journal of Applied Microbiology
T1  - In vitro colistin susceptibility of pandrug-resistant Ac. baumannii is restored in the presence of selenium nanoparticles
VL  - 133
IS  - 3
SP  - 1197
SP  - 1197
EP  - 1206
DO  - 10.1111/jam.15638
ER  - 
@article{
author = "Ušjak, Dušan and Novović, Katarina and Filipić, Brankica and Kojić, Milan and Filipović, Nenad and Stevanović, Magdalena and Milenković, Marina",
year = "2022",
abstract = "Aims: To investigate the synergistic activity of colistin and selenium nanoparticles (SeNPs) against pandrug-resistant (PDR) Ac. baumannii. Methods and Results: Chequerboard and time-kill assays were employed to ex- plore the potential synergistic interactions between colistin and SeNPs against Ac. baumannii isolates (8), previously determined as colistin-resistant (MIC range 16– 256 μg ml−1 ). Also, whole-genome sequencing (WGS) and gene expression analyses were used to elucidate the mechanisms of colistin resistance. Exceptionally strong synergistic activity (FICI range 0.004–0.035) of colistin and SeNPs against colistin- resistant isolates was revealed. Colistin (0.5 or 1 μg ml −1 ) used in combination with SeNPs (0.5 μg ml−1 ) was able to reduce initial inoculum during the first 4 h of incuba- tion, in contrast to colistin (0.5, 1 or 2 μg ml−1 ) alone. Conclusions: These findings propose colistin/SeNPs combination as a new option to fight PDR Ac. baumannii, the therapeutic possibilities of which should be proved in future in vivo studies. Significance and Impact of Study: Here we present the first evidence of synergy between colistin and selenium compounds against bacteria in general. Also, WGS and gene expression analyses provide some new insights into Ac. baumannii colistin resistance mechanisms.",
publisher = "John Wiley and Sons Inc",
journal = "Journal of Applied Microbiology",
title = "In vitro colistin susceptibility of pandrug-resistant Ac. baumannii is restored in the presence of selenium nanoparticles",
volume = "133",
number = "3",
pages = "1197-1197-1206",
doi = "10.1111/jam.15638"
}
Ušjak, D., Novović, K., Filipić, B., Kojić, M., Filipović, N., Stevanović, M.,& Milenković, M.. (2022). In vitro colistin susceptibility of pandrug-resistant Ac. baumannii is restored in the presence of selenium nanoparticles. in Journal of Applied Microbiology
John Wiley and Sons Inc., 133(3), 1197-1206.
https://doi.org/10.1111/jam.15638
Ušjak D, Novović K, Filipić B, Kojić M, Filipović N, Stevanović M, Milenković M. In vitro colistin susceptibility of pandrug-resistant Ac. baumannii is restored in the presence of selenium nanoparticles. in Journal of Applied Microbiology. 2022;133(3):1197-1206.
doi:10.1111/jam.15638 .
Ušjak, Dušan, Novović, Katarina, Filipić, Brankica, Kojić, Milan, Filipović, Nenad, Stevanović, Magdalena, Milenković, Marina, "In vitro colistin susceptibility of pandrug-resistant Ac. baumannii is restored in the presence of selenium nanoparticles" in Journal of Applied Microbiology, 133, no. 3 (2022):1197-1206,
https://doi.org/10.1111/jam.15638 . .
1
5
5

Spasmolytic, Gastroprotective and Antioxidant Activities of Dry Methanol Extract of Ferula heuffelii Underground Parts

Pavlović, Ivan; Radenković, Mirjana; Branković, Suzana; Milenković, Marina; Niketić, Marjan; Ušjak, Ljuboš; Petrović, Silvana

(John Wiley and Sons Inc, 2022)

TY  - JOUR
AU  - Pavlović, Ivan
AU  - Radenković, Mirjana
AU  - Branković, Suzana
AU  - Milenković, Marina
AU  - Niketić, Marjan
AU  - Ušjak, Ljuboš
AU  - Petrović, Silvana
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4084
AB  - Dry MeOH extract of Ferula heuffelii (Apiaceae) underground parts was tested for spasmolytic, gastroprotective and antioxidant activities. HPLC analysis revealed that chlorogenic acid (CGA; 34.6 mg/g) was its main constituent. Extract in vitro exhibited notable total antioxidant activity (FRAP value=1.0 μmol Fe2+/mg), and scavenging of DPPH (SC50=62.5 μg/ml) and •OH radicals (49.5 % at 20 μg/ml in 2-deoxyribose assay). In vitro on isolated rat ileum, extract exhibited significant spasmolytic activity, i. e., it showed 124.6 % of maximal atropine effect on spontaneous contractions (at 100 μg/ml), and reduced spasmogenic effect of KCl (80 mm) to 44.4 % (at 60 μg/ml) and of highest applied concentration of ACh to 26.3 % (at 120 μg/ml). In parallel experiments, spasmolytic effect of CGA was also demonstrated. In acute EtOH-induced gastric ulceration model in rats, extract (100 mg/kg p.o.) showed significant gastroprotective effect (gastric damage score 0.50), similar to ranitidine (20 mg/kg p.o.). Obtained results showed that tested F. heuffelii polar extract represents new herbal preparation with potential use against some gastrointestinal complaints.
PB  - John Wiley and Sons Inc
T2  - Chemistry and Biodiversity
T1  - Spasmolytic, Gastroprotective and Antioxidant Activities of Dry Methanol Extract of Ferula heuffelii Underground Parts
VL  - 19
IS  - 5
DO  - 10.1002/cbdv.202200047
ER  - 
@article{
author = "Pavlović, Ivan and Radenković, Mirjana and Branković, Suzana and Milenković, Marina and Niketić, Marjan and Ušjak, Ljuboš and Petrović, Silvana",
year = "2022",
abstract = "Dry MeOH extract of Ferula heuffelii (Apiaceae) underground parts was tested for spasmolytic, gastroprotective and antioxidant activities. HPLC analysis revealed that chlorogenic acid (CGA; 34.6 mg/g) was its main constituent. Extract in vitro exhibited notable total antioxidant activity (FRAP value=1.0 μmol Fe2+/mg), and scavenging of DPPH (SC50=62.5 μg/ml) and •OH radicals (49.5 % at 20 μg/ml in 2-deoxyribose assay). In vitro on isolated rat ileum, extract exhibited significant spasmolytic activity, i. e., it showed 124.6 % of maximal atropine effect on spontaneous contractions (at 100 μg/ml), and reduced spasmogenic effect of KCl (80 mm) to 44.4 % (at 60 μg/ml) and of highest applied concentration of ACh to 26.3 % (at 120 μg/ml). In parallel experiments, spasmolytic effect of CGA was also demonstrated. In acute EtOH-induced gastric ulceration model in rats, extract (100 mg/kg p.o.) showed significant gastroprotective effect (gastric damage score 0.50), similar to ranitidine (20 mg/kg p.o.). Obtained results showed that tested F. heuffelii polar extract represents new herbal preparation with potential use against some gastrointestinal complaints.",
publisher = "John Wiley and Sons Inc",
journal = "Chemistry and Biodiversity",
title = "Spasmolytic, Gastroprotective and Antioxidant Activities of Dry Methanol Extract of Ferula heuffelii Underground Parts",
volume = "19",
number = "5",
doi = "10.1002/cbdv.202200047"
}
Pavlović, I., Radenković, M., Branković, S., Milenković, M., Niketić, M., Ušjak, L.,& Petrović, S.. (2022). Spasmolytic, Gastroprotective and Antioxidant Activities of Dry Methanol Extract of Ferula heuffelii Underground Parts. in Chemistry and Biodiversity
John Wiley and Sons Inc., 19(5).
https://doi.org/10.1002/cbdv.202200047
Pavlović I, Radenković M, Branković S, Milenković M, Niketić M, Ušjak L, Petrović S. Spasmolytic, Gastroprotective and Antioxidant Activities of Dry Methanol Extract of Ferula heuffelii Underground Parts. in Chemistry and Biodiversity. 2022;19(5).
doi:10.1002/cbdv.202200047 .
Pavlović, Ivan, Radenković, Mirjana, Branković, Suzana, Milenković, Marina, Niketić, Marjan, Ušjak, Ljuboš, Petrović, Silvana, "Spasmolytic, Gastroprotective and Antioxidant Activities of Dry Methanol Extract of Ferula heuffelii Underground Parts" in Chemistry and Biodiversity, 19, no. 5 (2022),
https://doi.org/10.1002/cbdv.202200047 . .
1
3
4

Antimicrobial Susceptibility Testing: A Comprehensive Review of Currently Used Methods

Gajić, Ina; Kabić, Jovana; Kekić, Dušan; Jovićević, Miloš; Milenković, Marina; Mitić-Ćulafić, Dragana; Trudić, Anika; Ranin, Lazar; Opavski, Nataša

(MDPI, 2022)

TY  - JOUR
AU  - Gajić, Ina
AU  - Kabić, Jovana
AU  - Kekić, Dušan
AU  - Jovićević, Miloš
AU  - Milenković, Marina
AU  - Mitić-Ćulafić, Dragana
AU  - Trudić, Anika
AU  - Ranin, Lazar
AU  - Opavski, Nataša
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4083
AB  - Antimicrobial resistance (AMR) has emerged as a major threat to public health globally. Accurate and rapid detection of resistance to antimicrobial drugs, and subsequent appropriate antimicrobial treatment, combined with antimicrobial stewardship, are essential for controlling the emergence and spread of AMR. This article reviews common antimicrobial susceptibility testing (AST) methods and relevant issues concerning the advantages and disadvantages of each method. Although accurate, classic technologies used in clinical microbiology to profile antimicrobial susceptibility are time-consuming and relatively expensive. As a result, physicians often prescribe empirical antimicrobial therapies and broad-spectrum antibiotics. Although recently developed AST systems have shown advantages over traditional methods in terms of testing speed and the potential for providing a deeper insight into resistance mechanisms, extensive validation is required to translate these methodologies to clinical practice. With a continuous increase in antimicrobial resistance, additional efforts are needed to develop innovative, rapid, accurate, and portable diagnostic tools for AST. The wide implementation of novel devices would enable the identification of the optimal treatment approaches and the surveillance of antibiotic resistance in health, agriculture, and the environment, allowing monitoring and better tackling the emergence of AMR.
PB  - MDPI
T2  - Antibiotics
T1  - Antimicrobial Susceptibility Testing: A Comprehensive Review of Currently Used Methods
VL  - 11
IS  - 4
DO  - 10.3390/antibiotics11040427
ER  - 
@article{
author = "Gajić, Ina and Kabić, Jovana and Kekić, Dušan and Jovićević, Miloš and Milenković, Marina and Mitić-Ćulafić, Dragana and Trudić, Anika and Ranin, Lazar and Opavski, Nataša",
year = "2022",
abstract = "Antimicrobial resistance (AMR) has emerged as a major threat to public health globally. Accurate and rapid detection of resistance to antimicrobial drugs, and subsequent appropriate antimicrobial treatment, combined with antimicrobial stewardship, are essential for controlling the emergence and spread of AMR. This article reviews common antimicrobial susceptibility testing (AST) methods and relevant issues concerning the advantages and disadvantages of each method. Although accurate, classic technologies used in clinical microbiology to profile antimicrobial susceptibility are time-consuming and relatively expensive. As a result, physicians often prescribe empirical antimicrobial therapies and broad-spectrum antibiotics. Although recently developed AST systems have shown advantages over traditional methods in terms of testing speed and the potential for providing a deeper insight into resistance mechanisms, extensive validation is required to translate these methodologies to clinical practice. With a continuous increase in antimicrobial resistance, additional efforts are needed to develop innovative, rapid, accurate, and portable diagnostic tools for AST. The wide implementation of novel devices would enable the identification of the optimal treatment approaches and the surveillance of antibiotic resistance in health, agriculture, and the environment, allowing monitoring and better tackling the emergence of AMR.",
publisher = "MDPI",
journal = "Antibiotics",
title = "Antimicrobial Susceptibility Testing: A Comprehensive Review of Currently Used Methods",
volume = "11",
number = "4",
doi = "10.3390/antibiotics11040427"
}
Gajić, I., Kabić, J., Kekić, D., Jovićević, M., Milenković, M., Mitić-Ćulafić, D., Trudić, A., Ranin, L.,& Opavski, N.. (2022). Antimicrobial Susceptibility Testing: A Comprehensive Review of Currently Used Methods. in Antibiotics
MDPI., 11(4).
https://doi.org/10.3390/antibiotics11040427
Gajić I, Kabić J, Kekić D, Jovićević M, Milenković M, Mitić-Ćulafić D, Trudić A, Ranin L, Opavski N. Antimicrobial Susceptibility Testing: A Comprehensive Review of Currently Used Methods. in Antibiotics. 2022;11(4).
doi:10.3390/antibiotics11040427 .
Gajić, Ina, Kabić, Jovana, Kekić, Dušan, Jovićević, Miloš, Milenković, Marina, Mitić-Ćulafić, Dragana, Trudić, Anika, Ranin, Lazar, Opavski, Nataša, "Antimicrobial Susceptibility Testing: A Comprehensive Review of Currently Used Methods" in Antibiotics, 11, no. 4 (2022),
https://doi.org/10.3390/antibiotics11040427 . .
31
92
80

Anatomical characterization, chemical analyses and essential oil antimicrobial activity of Hyssopus officinalis L. (Lamiaceae)

Arsenijević, Jelena; Slavkovska, Violeta; Milenković, Marina

(Macedonian Pharmaceutical Association, 2022)

TY  - CONF
AU  - Arsenijević, Jelena
AU  - Slavkovska, Violeta
AU  - Milenković, Marina
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4625
AB  - Introduction
Hyssopus officinalis L. (Lamiaceae) is a perennial aromatic subshrub, distributed mainly in the Mediterranean area. The aerial parts of the plant are used as a culinary and medicinal herb (Hyssopi herba) against various ailments, and its essential oil is used in the perfume industry. It contains essential oil, phenolic acids, and flavonoids. However, in a number of cases, certain differences arose between samples of different origin (Mićović et al., 2019). In this work, we investigated the anatomy and chemical composition of H. officinalis from Mt. Galičica, North Macedonia. Furthermore, based on an a priori knowledge on good antimicrobial activity of essential oils, we investigated its effects against selected microorganisms.
PB  - Macedonian Pharmaceutical Association
PB  - Ss. Cyril and Methodius University in Skopje, Faculty of Pharmacy
C3  - Macedonian Pharmaceutical Bulletin
T1  - Anatomical characterization, chemical analyses and essential oil antimicrobial activity of Hyssopus officinalis L. (Lamiaceae)
VL  - 68
IS  - 1 suppl
SP  - 421
EP  - 422
DO  - 10.33320/maced.pharm.bull.2022.68.03.203
ER  - 
@conference{
author = "Arsenijević, Jelena and Slavkovska, Violeta and Milenković, Marina",
year = "2022",
abstract = "Introduction
Hyssopus officinalis L. (Lamiaceae) is a perennial aromatic subshrub, distributed mainly in the Mediterranean area. The aerial parts of the plant are used as a culinary and medicinal herb (Hyssopi herba) against various ailments, and its essential oil is used in the perfume industry. It contains essential oil, phenolic acids, and flavonoids. However, in a number of cases, certain differences arose between samples of different origin (Mićović et al., 2019). In this work, we investigated the anatomy and chemical composition of H. officinalis from Mt. Galičica, North Macedonia. Furthermore, based on an a priori knowledge on good antimicrobial activity of essential oils, we investigated its effects against selected microorganisms.",
publisher = "Macedonian Pharmaceutical Association, Ss. Cyril and Methodius University in Skopje, Faculty of Pharmacy",
journal = "Macedonian Pharmaceutical Bulletin",
title = "Anatomical characterization, chemical analyses and essential oil antimicrobial activity of Hyssopus officinalis L. (Lamiaceae)",
volume = "68",
number = "1 suppl",
pages = "421-422",
doi = "10.33320/maced.pharm.bull.2022.68.03.203"
}
Arsenijević, J., Slavkovska, V.,& Milenković, M.. (2022). Anatomical characterization, chemical analyses and essential oil antimicrobial activity of Hyssopus officinalis L. (Lamiaceae). in Macedonian Pharmaceutical Bulletin
Macedonian Pharmaceutical Association., 68(1 suppl), 421-422.
https://doi.org/10.33320/maced.pharm.bull.2022.68.03.203
Arsenijević J, Slavkovska V, Milenković M. Anatomical characterization, chemical analyses and essential oil antimicrobial activity of Hyssopus officinalis L. (Lamiaceae). in Macedonian Pharmaceutical Bulletin. 2022;68(1 suppl):421-422.
doi:10.33320/maced.pharm.bull.2022.68.03.203 .
Arsenijević, Jelena, Slavkovska, Violeta, Milenković, Marina, "Anatomical characterization, chemical analyses and essential oil antimicrobial activity of Hyssopus officinalis L. (Lamiaceae)" in Macedonian Pharmaceutical Bulletin, 68, no. 1 suppl (2022):421-422,
https://doi.org/10.33320/maced.pharm.bull.2022.68.03.203 . .

Editorial: Antimicrobial nanostructured polymeric materials and nanocomposites, volume II

Stevanović, Magdalena; Vukomanović, Marija; Milenković, Marina; Boccaccini, Aldo

(Frontiers Media S.A., 2022)

TY  - JOUR
AU  - Stevanović, Magdalena
AU  - Vukomanović, Marija
AU  - Milenković, Marina
AU  - Boccaccini, Aldo
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4280
PB  - Frontiers Media S.A.
T2  - Frontiers in Bioengineering and Biotechnology
T1  - Editorial: Antimicrobial nanostructured polymeric materials and nanocomposites, volume II
VL  - 10
DO  - 10.3389/fbioe.2022.1015485
ER  - 
@article{
author = "Stevanović, Magdalena and Vukomanović, Marija and Milenković, Marina and Boccaccini, Aldo",
year = "2022",
publisher = "Frontiers Media S.A.",
journal = "Frontiers in Bioengineering and Biotechnology",
title = "Editorial: Antimicrobial nanostructured polymeric materials and nanocomposites, volume II",
volume = "10",
doi = "10.3389/fbioe.2022.1015485"
}
Stevanović, M., Vukomanović, M., Milenković, M.,& Boccaccini, A.. (2022). Editorial: Antimicrobial nanostructured polymeric materials and nanocomposites, volume II. in Frontiers in Bioengineering and Biotechnology
Frontiers Media S.A.., 10.
https://doi.org/10.3389/fbioe.2022.1015485
Stevanović M, Vukomanović M, Milenković M, Boccaccini A. Editorial: Antimicrobial nanostructured polymeric materials and nanocomposites, volume II. in Frontiers in Bioengineering and Biotechnology. 2022;10.
doi:10.3389/fbioe.2022.1015485 .
Stevanović, Magdalena, Vukomanović, Marija, Milenković, Marina, Boccaccini, Aldo, "Editorial: Antimicrobial nanostructured polymeric materials and nanocomposites, volume II" in Frontiers in Bioengineering and Biotechnology, 10 (2022),
https://doi.org/10.3389/fbioe.2022.1015485 . .
2

Pharmacological characterisation of Seseli gracile Waldst. & Kit. (Apiaceae) essential oil

Suručić, Relja; Kundaković-Vasović, Tatjana; Marčetić, Mirjana; Drakul, Dragana; Milenković, Marina; Kovačević, Nada

(Belgrade : Military Medical Academy, INI, 2021)

TY  - JOUR
AU  - Suručić, Relja
AU  - Kundaković-Vasović, Tatjana
AU  - Marčetić, Mirjana
AU  - Drakul, Dragana
AU  - Milenković, Marina
AU  - Kovačević, Nada
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4002
AB  - Phytochemical and pharmacological in-vestigations of essential oils isolated from plant species of the genus Seseli have been intensified recently. These plant species have long-term use in nutrition and traditional medicine in the treatment of various disorders. Volatile secondary metabolites of Seseli gracile Waldst. & Kit (Apiaceae) have not been pharma-cologically examined so far. The aim of the conducted research was to assess the antiradical, antimicrobial and spasmolytic ac-tivities of S. gracile essential oil isolated from the aerial parts of the plant. Methods. The antiradical activity was determined us-ing the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scaveng-ing test, antimicrobial activity using broth microdilution meth-od with standard strains of Gram (+), Gram (-) bacteria and yeast, while spasmolytic activity was evaluated on isolated rat il-eum, pre-contracted with a high concentration of potassium. Results. The results showed moderate antiradical (SC50 = 78.60 μg/mL) and good spasmolytic activity (IC50 = 271.4 nL/mL) of S. gracile essential oil. In the range of tested concen-trations, minimal inhibitory concentration (MIC) was deter-mined only for the strain of Escherichia coli (500 μg/mL). Con-clusion. Results obtained in this study justify the need for fur-ther studies to elucidate exact molecular mechanism underlay this spasmolytic effect of S. gracile herb essential oil.
AB  - Etarska ulja izolovana iz vrsta roda Seseli su u poslednje vreme intenzivno farmakološki i fitohemijski proučavana. Biljke iz ovog roda se koriste već duži niz godina u ishrani i tradicionalnoj terapiji različitih oboljenja. Farmakološka aktivnost etarskog ulja izolovanog iz Seseli gracile do sada nije ispitivana. Stoga je cilj ovog istraživanja bio da se ispita antiradikalska, antimikrobna i spazmolitična aktivnost etarskog ulja izolovanog iz nadzemnih delova biljne vrste S. gracile. Metode. Antiradikalska aktivnost je utvrđena testom neutralizacije 2.2-difenil-1-pikrilhidrazil (DPPH) radikala, antimikrobna, bujon-mikrodilucionom metodom uz upotrebu standardnih sojeva Gram (+), Gram (-) bakterija i gljivica, a spazmolitična na izolovanom ileumu pacova, prethodno kontrahovanom visokom koncentarcijom kalijuma. Rezultati. Rezultati pokazuju umerenu antiradikalsku (SC50 = 78.60 μg/mL) i dobru spazmolitičnu aktivnost (IC50 = 271.4 nL/mL) etarskog ulja S. gracile. U opsegu testiranih koncentracija utvrđena je minimalna inhibitorna koncentracija (MIC) samo za soj Escherichia coli (500 μg/mL). Zaključak. Dobijeni rezultati opravdavaju potrebu za budućim istraživanjima koja bi razjasnila tačne mehanizme kojima se ostvaruje spazmolitički efekat etarskog ulja nadzemnog dela S. gracile.
PB  - Belgrade : Military Medical Academy, INI
T2  - Vojnosanitetski pregled
T1  - Pharmacological characterisation of Seseli gracile Waldst. & Kit. (Apiaceae) essential oil
T1  - Farmakološka karakterizacija etarskog ulja Seseli gracile Waldst. & Kit. (Apiaceae)
VL  - 78
IS  - 10
SP  - 1065
EP  - 1071
DO  - 10.2298/VSP190320028S
ER  - 
@article{
author = "Suručić, Relja and Kundaković-Vasović, Tatjana and Marčetić, Mirjana and Drakul, Dragana and Milenković, Marina and Kovačević, Nada",
year = "2021",
abstract = "Phytochemical and pharmacological in-vestigations of essential oils isolated from plant species of the genus Seseli have been intensified recently. These plant species have long-term use in nutrition and traditional medicine in the treatment of various disorders. Volatile secondary metabolites of Seseli gracile Waldst. & Kit (Apiaceae) have not been pharma-cologically examined so far. The aim of the conducted research was to assess the antiradical, antimicrobial and spasmolytic ac-tivities of S. gracile essential oil isolated from the aerial parts of the plant. Methods. The antiradical activity was determined us-ing the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scaveng-ing test, antimicrobial activity using broth microdilution meth-od with standard strains of Gram (+), Gram (-) bacteria and yeast, while spasmolytic activity was evaluated on isolated rat il-eum, pre-contracted with a high concentration of potassium. Results. The results showed moderate antiradical (SC50 = 78.60 μg/mL) and good spasmolytic activity (IC50 = 271.4 nL/mL) of S. gracile essential oil. In the range of tested concen-trations, minimal inhibitory concentration (MIC) was deter-mined only for the strain of Escherichia coli (500 μg/mL). Con-clusion. Results obtained in this study justify the need for fur-ther studies to elucidate exact molecular mechanism underlay this spasmolytic effect of S. gracile herb essential oil., Etarska ulja izolovana iz vrsta roda Seseli su u poslednje vreme intenzivno farmakološki i fitohemijski proučavana. Biljke iz ovog roda se koriste već duži niz godina u ishrani i tradicionalnoj terapiji različitih oboljenja. Farmakološka aktivnost etarskog ulja izolovanog iz Seseli gracile do sada nije ispitivana. Stoga je cilj ovog istraživanja bio da se ispita antiradikalska, antimikrobna i spazmolitična aktivnost etarskog ulja izolovanog iz nadzemnih delova biljne vrste S. gracile. Metode. Antiradikalska aktivnost je utvrđena testom neutralizacije 2.2-difenil-1-pikrilhidrazil (DPPH) radikala, antimikrobna, bujon-mikrodilucionom metodom uz upotrebu standardnih sojeva Gram (+), Gram (-) bakterija i gljivica, a spazmolitična na izolovanom ileumu pacova, prethodno kontrahovanom visokom koncentarcijom kalijuma. Rezultati. Rezultati pokazuju umerenu antiradikalsku (SC50 = 78.60 μg/mL) i dobru spazmolitičnu aktivnost (IC50 = 271.4 nL/mL) etarskog ulja S. gracile. U opsegu testiranih koncentracija utvrđena je minimalna inhibitorna koncentracija (MIC) samo za soj Escherichia coli (500 μg/mL). Zaključak. Dobijeni rezultati opravdavaju potrebu za budućim istraživanjima koja bi razjasnila tačne mehanizme kojima se ostvaruje spazmolitički efekat etarskog ulja nadzemnog dela S. gracile.",
publisher = "Belgrade : Military Medical Academy, INI",
journal = "Vojnosanitetski pregled",
title = "Pharmacological characterisation of Seseli gracile Waldst. & Kit. (Apiaceae) essential oil, Farmakološka karakterizacija etarskog ulja Seseli gracile Waldst. & Kit. (Apiaceae)",
volume = "78",
number = "10",
pages = "1065-1071",
doi = "10.2298/VSP190320028S"
}
Suručić, R., Kundaković-Vasović, T., Marčetić, M., Drakul, D., Milenković, M.,& Kovačević, N.. (2021). Pharmacological characterisation of Seseli gracile Waldst. & Kit. (Apiaceae) essential oil. in Vojnosanitetski pregled
Belgrade : Military Medical Academy, INI., 78(10), 1065-1071.
https://doi.org/10.2298/VSP190320028S
Suručić R, Kundaković-Vasović T, Marčetić M, Drakul D, Milenković M, Kovačević N. Pharmacological characterisation of Seseli gracile Waldst. & Kit. (Apiaceae) essential oil. in Vojnosanitetski pregled. 2021;78(10):1065-1071.
doi:10.2298/VSP190320028S .
Suručić, Relja, Kundaković-Vasović, Tatjana, Marčetić, Mirjana, Drakul, Dragana, Milenković, Marina, Kovačević, Nada, "Pharmacological characterisation of Seseli gracile Waldst. & Kit. (Apiaceae) essential oil" in Vojnosanitetski pregled, 78, no. 10 (2021):1065-1071,
https://doi.org/10.2298/VSP190320028S . .
2
2

Antioxidant capacity and antimicrobial effects of zinc complexes of flavonoids – does synergism exist?

Pavun, Leposava; Janošević-Ležaić, Aleksandra; Tanasković, Slađana; Ušjak, Dušan; Milenković, Marina; Uskoković-Marković, Snežana

(Macedonian Journal of Chemistry and Chemical Engineering, 2021)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Janošević-Ležaić, Aleksandra
AU  - Tanasković, Slađana
AU  - Ušjak, Dušan
AU  - Milenković, Marina
AU  - Uskoković-Marković, Snežana
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4055
AB  - The presence of residual cardiovascular disease (CVD) risk is a current dilemma in clinical practice; indeed, despite optimal management and treatment, a considerable proportion of patients still undergo major CV events. Novel lipoprotein biomarkers are suggested as possible targets for improving the outcomes of patients at higher risk for CVD, and their impact on major CV events and mortality have previously been investigated. Innovative antidiabetic therapies have recently shown a significant reduction in atherogenic lipoproteins, beyond their effects on glucose parameters; it has also been suggested that such anti-atherogenic effect may represent a valuable mechanistic explanation for the cardiovascular benefit of, at least, some of the novel antidiabetic agents, such as glucagon-like peptide-1 receptor agonists. This emphasizes the need for further research in the field in order to clearly assess the effects of innovative treatments on different novel biomarkers, including atherogenic lipoproteins, such as small dense low-density lipoprotein (LDL), lipoprotein(a) (Lp(a)) and dysfunctional high-density lipoprotein (HDL). The current article discusses the clinical importance of novel lipid biomarkers for better management of patients in order to overcome residual cardiovascular risk.
AB  - Постои постојана потреба од ефикасни лекови, комбинации на лекови и методи за спречување на бактериски и вирусни инфекции, вклучувајќи го и коронавирусот. Познато е дека улогата на елементи во траги во зајакнување на човековиот имун систем е значајна. Витамините, микроелементите, вклучувајќи цинк, железо, селен, магнезиум и бакар, масните киселини омега-3 играат значајна физиолошка улога во унапредување на имуниот систем. Цинкот е неопходен микроелемент за основните ензимски физиолошки процеси. Тој игра важна улога во делбата на клетките и е вклучен во развојот на клетки одговорни за неспецифичен имунитет. Познато е дека недостигот на цинк ги предиспонира пациентите на вирусни инфекции поради намалениот антивирусен имунитет. Од друга страна, флавоноидите како метаболити на растенијата играат важна улога во спречување на оксидативен стрес. Овој труд има за цел да ја дискутира in vitro улогата на цинкот, флавонидите и нивните комплекси, како и нивните антиоксидативни и антимикорбни активности. Разгледана е и оправданоста за истовремена употреба на цинк и флавоноиди.
PB  - Macedonian Journal of Chemistry and Chemical Engineering
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Antioxidant capacity and antimicrobial effects of zinc complexes of flavonoids – does synergism exist?
T1  - Aнтиоксидативен капацитет и антимикробни ефекти на комплекси
на цинк со флавоноиди – дали постои синергизам?
VL  - 40
IS  - 2
SP  - 231
EP  - 239
DO  - 10.20450/mjcce.2021.2401
ER  - 
@article{
author = "Pavun, Leposava and Janošević-Ležaić, Aleksandra and Tanasković, Slađana and Ušjak, Dušan and Milenković, Marina and Uskoković-Marković, Snežana",
year = "2021",
abstract = "The presence of residual cardiovascular disease (CVD) risk is a current dilemma in clinical practice; indeed, despite optimal management and treatment, a considerable proportion of patients still undergo major CV events. Novel lipoprotein biomarkers are suggested as possible targets for improving the outcomes of patients at higher risk for CVD, and their impact on major CV events and mortality have previously been investigated. Innovative antidiabetic therapies have recently shown a significant reduction in atherogenic lipoproteins, beyond their effects on glucose parameters; it has also been suggested that such anti-atherogenic effect may represent a valuable mechanistic explanation for the cardiovascular benefit of, at least, some of the novel antidiabetic agents, such as glucagon-like peptide-1 receptor agonists. This emphasizes the need for further research in the field in order to clearly assess the effects of innovative treatments on different novel biomarkers, including atherogenic lipoproteins, such as small dense low-density lipoprotein (LDL), lipoprotein(a) (Lp(a)) and dysfunctional high-density lipoprotein (HDL). The current article discusses the clinical importance of novel lipid biomarkers for better management of patients in order to overcome residual cardiovascular risk., Постои постојана потреба од ефикасни лекови, комбинации на лекови и методи за спречување на бактериски и вирусни инфекции, вклучувајќи го и коронавирусот. Познато е дека улогата на елементи во траги во зајакнување на човековиот имун систем е значајна. Витамините, микроелементите, вклучувајќи цинк, железо, селен, магнезиум и бакар, масните киселини омега-3 играат значајна физиолошка улога во унапредување на имуниот систем. Цинкот е неопходен микроелемент за основните ензимски физиолошки процеси. Тој игра важна улога во делбата на клетките и е вклучен во развојот на клетки одговорни за неспецифичен имунитет. Познато е дека недостигот на цинк ги предиспонира пациентите на вирусни инфекции поради намалениот антивирусен имунитет. Од друга страна, флавоноидите како метаболити на растенијата играат важна улога во спречување на оксидативен стрес. Овој труд има за цел да ја дискутира in vitro улогата на цинкот, флавонидите и нивните комплекси, како и нивните антиоксидативни и антимикорбни активности. Разгледана е и оправданоста за истовремена употреба на цинк и флавоноиди.",
publisher = "Macedonian Journal of Chemistry and Chemical Engineering",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Antioxidant capacity and antimicrobial effects of zinc complexes of flavonoids – does synergism exist?, Aнтиоксидативен капацитет и антимикробни ефекти на комплекси
на цинк со флавоноиди – дали постои синергизам?",
volume = "40",
number = "2",
pages = "231-239",
doi = "10.20450/mjcce.2021.2401"
}
Pavun, L., Janošević-Ležaić, A., Tanasković, S., Ušjak, D., Milenković, M.,& Uskoković-Marković, S.. (2021). Antioxidant capacity and antimicrobial effects of zinc complexes of flavonoids – does synergism exist?. in Macedonian Journal of Chemistry and Chemical Engineering
Macedonian Journal of Chemistry and Chemical Engineering., 40(2), 231-239.
https://doi.org/10.20450/mjcce.2021.2401
Pavun L, Janošević-Ležaić A, Tanasković S, Ušjak D, Milenković M, Uskoković-Marković S. Antioxidant capacity and antimicrobial effects of zinc complexes of flavonoids – does synergism exist?. in Macedonian Journal of Chemistry and Chemical Engineering. 2021;40(2):231-239.
doi:10.20450/mjcce.2021.2401 .
Pavun, Leposava, Janošević-Ležaić, Aleksandra, Tanasković, Slađana, Ušjak, Dušan, Milenković, Marina, Uskoković-Marković, Snežana, "Antioxidant capacity and antimicrobial effects of zinc complexes of flavonoids – does synergism exist?" in Macedonian Journal of Chemistry and Chemical Engineering, 40, no. 2 (2021):231-239,
https://doi.org/10.20450/mjcce.2021.2401 . .

Polyphenol rich extracts of Geranium L. species as potential natural antioxidant and antimicrobial agents

Ilić, Milan; Samardžić, Stevan; Kotur-Stevuljević, Jelena; Ušjak, Dušan; Milenković, Marina; Kovačević, Nada; Drobac, Milica

(Verduci Editore s.r.l, 2021)

TY  - JOUR
AU  - Ilić, Milan
AU  - Samardžić, Stevan
AU  - Kotur-Stevuljević, Jelena
AU  - Ušjak, Dušan
AU  - Milenković, Marina
AU  - Kovačević, Nada
AU  - Drobac, Milica
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3995
AB  - Plants and plant extracts are of great scientific interest due to the chemical diversity and pharmacological properties of present bioactive molecules. The Geranium L . species are widely used in ethnomedicine. In the current study, the total phenolic and tannin content, antioxidant and antimicrobial activity of methanol extracts of eight Geranium species were investigated.
PB  - Verduci Editore s.r.l
T2  - European Review for Medical and Pharmacological Sciences
T1  - Polyphenol rich extracts of Geranium L. species as potential natural antioxidant and antimicrobial agents
VL  - 25
IS  - 20
SP  - 6283
EP  - 6294
DO  - 10.26355/eurrev_202110_26998
ER  - 
@article{
author = "Ilić, Milan and Samardžić, Stevan and Kotur-Stevuljević, Jelena and Ušjak, Dušan and Milenković, Marina and Kovačević, Nada and Drobac, Milica",
year = "2021",
abstract = "Plants and plant extracts are of great scientific interest due to the chemical diversity and pharmacological properties of present bioactive molecules. The Geranium L . species are widely used in ethnomedicine. In the current study, the total phenolic and tannin content, antioxidant and antimicrobial activity of methanol extracts of eight Geranium species were investigated.",
publisher = "Verduci Editore s.r.l",
journal = "European Review for Medical and Pharmacological Sciences",
title = "Polyphenol rich extracts of Geranium L. species as potential natural antioxidant and antimicrobial agents",
volume = "25",
number = "20",
pages = "6283-6294",
doi = "10.26355/eurrev_202110_26998"
}
Ilić, M., Samardžić, S., Kotur-Stevuljević, J., Ušjak, D., Milenković, M., Kovačević, N.,& Drobac, M.. (2021). Polyphenol rich extracts of Geranium L. species as potential natural antioxidant and antimicrobial agents. in European Review for Medical and Pharmacological Sciences
Verduci Editore s.r.l., 25(20), 6283-6294.
https://doi.org/10.26355/eurrev_202110_26998
Ilić M, Samardžić S, Kotur-Stevuljević J, Ušjak D, Milenković M, Kovačević N, Drobac M. Polyphenol rich extracts of Geranium L. species as potential natural antioxidant and antimicrobial agents. in European Review for Medical and Pharmacological Sciences. 2021;25(20):6283-6294.
doi:10.26355/eurrev_202110_26998 .
Ilić, Milan, Samardžić, Stevan, Kotur-Stevuljević, Jelena, Ušjak, Dušan, Milenković, Marina, Kovačević, Nada, Drobac, Milica, "Polyphenol rich extracts of Geranium L. species as potential natural antioxidant and antimicrobial agents" in European Review for Medical and Pharmacological Sciences, 25, no. 20 (2021):6283-6294,
https://doi.org/10.26355/eurrev_202110_26998 . .
2
2

Comparative Study of the Antimicrobial Activity of Selenium Nanoparticles With Different Surface Chemistry and Structure

Filipović, Nenad; Ušjak, Dušan; Milenković, Marina; Zheng, Kai; Liverani, Liliana; Boccaccini, Aldo R.; Stevanović, Magdalena

(Frontiers Media S.A., 2021)

TY  - JOUR
AU  - Filipović, Nenad
AU  - Ušjak, Dušan
AU  - Milenković, Marina
AU  - Zheng, Kai
AU  - Liverani, Liliana
AU  - Boccaccini, Aldo R.
AU  - Stevanović, Magdalena
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3787
AB  - Although selenium nanoparticles (SeNPs) have gained attention in the scientific community mostly through investigation of their anticancer activity, a great potential of this nanomaterial was recognized recently regarding its antimicrobial activity. The particle form, size, and surface chemistry have been recognized as crucial parameters determining the interaction of nanomaterials with biological entities. Furthermore, considering a narrow boundary between beneficial and toxic effects for selenium per se, it is clear that investigations of biomedical applications of SeNPs are very demanding and must be done with great precautions. The goal of this work is to evaluate the effects of SeNPs surface chemistry and structure on antimicrobial activity against several common bacterial strains, including Staphylococcus aureus (ATCC 6538), Enterococcus faecalis (ATCC 29212), Bacillus subtilis (ATCC 6633), and Kocuria rhizophila (ATCC 9341), as well as Escherichia coli (ATCC 8739), Salmonella Abony (NCTC 6017), Klebsiella pneumoniae (NCIMB 9111) and Pseudomonas aeruginosa (ATCC 9027), and the standard yeast strain Candida albicans (ATCC 10231). Three types of SeNPs were synthesized by chemical reduction approach using different stabilizers and reducing agents: (i) bovine serum albumin (BSA) + ascorbic acid, (ii) chitosan + ascorbic acid, and (iii) with glucose. A thorough physicochemical characterization of the obtained SeNPs was performed to determine the effects of varying synthesis parameters on their morphology, size, structure, and surface chemistry. All SeNPs were amorphous, with spherical morphology and size in the range 70–300 nm. However, the SeNPs obtained under different synthesis conditions, i.e. by using different stabilizers as well as reducing agents, exhibited different antimicrobial activity as well as cytotoxicity which are crucial for their applications. In this paper, the antimicrobial screening of the selected systems is presented, which was determined by the broth microdilution method, and inhibitory influence on the production of monomicrobial and dual-species biofilm was evaluated. The potential mechanism of action of different systems is proposed. Additionally, the cytotoxicity of SeNPs was examined on the MRC-5 cell line, in the same concentration interval as for antimicrobial testing. It was shown that formulation SeNPs-BSA expressed a significantly lower cytotoxic effect than the other two formulations.
PB  - Frontiers Media S.A.
T2  - Frontiers in Bioengineering and Biotechnology
T1  - Comparative Study of the Antimicrobial Activity of Selenium Nanoparticles With Different Surface Chemistry and Structure
VL  - 8
DO  - 10.3389/fbioe.2020.624621
ER  - 
@article{
author = "Filipović, Nenad and Ušjak, Dušan and Milenković, Marina and Zheng, Kai and Liverani, Liliana and Boccaccini, Aldo R. and Stevanović, Magdalena",
year = "2021",
abstract = "Although selenium nanoparticles (SeNPs) have gained attention in the scientific community mostly through investigation of their anticancer activity, a great potential of this nanomaterial was recognized recently regarding its antimicrobial activity. The particle form, size, and surface chemistry have been recognized as crucial parameters determining the interaction of nanomaterials with biological entities. Furthermore, considering a narrow boundary between beneficial and toxic effects for selenium per se, it is clear that investigations of biomedical applications of SeNPs are very demanding and must be done with great precautions. The goal of this work is to evaluate the effects of SeNPs surface chemistry and structure on antimicrobial activity against several common bacterial strains, including Staphylococcus aureus (ATCC 6538), Enterococcus faecalis (ATCC 29212), Bacillus subtilis (ATCC 6633), and Kocuria rhizophila (ATCC 9341), as well as Escherichia coli (ATCC 8739), Salmonella Abony (NCTC 6017), Klebsiella pneumoniae (NCIMB 9111) and Pseudomonas aeruginosa (ATCC 9027), and the standard yeast strain Candida albicans (ATCC 10231). Three types of SeNPs were synthesized by chemical reduction approach using different stabilizers and reducing agents: (i) bovine serum albumin (BSA) + ascorbic acid, (ii) chitosan + ascorbic acid, and (iii) with glucose. A thorough physicochemical characterization of the obtained SeNPs was performed to determine the effects of varying synthesis parameters on their morphology, size, structure, and surface chemistry. All SeNPs were amorphous, with spherical morphology and size in the range 70–300 nm. However, the SeNPs obtained under different synthesis conditions, i.e. by using different stabilizers as well as reducing agents, exhibited different antimicrobial activity as well as cytotoxicity which are crucial for their applications. In this paper, the antimicrobial screening of the selected systems is presented, which was determined by the broth microdilution method, and inhibitory influence on the production of monomicrobial and dual-species biofilm was evaluated. The potential mechanism of action of different systems is proposed. Additionally, the cytotoxicity of SeNPs was examined on the MRC-5 cell line, in the same concentration interval as for antimicrobial testing. It was shown that formulation SeNPs-BSA expressed a significantly lower cytotoxic effect than the other two formulations.",
publisher = "Frontiers Media S.A.",
journal = "Frontiers in Bioengineering and Biotechnology",
title = "Comparative Study of the Antimicrobial Activity of Selenium Nanoparticles With Different Surface Chemistry and Structure",
volume = "8",
doi = "10.3389/fbioe.2020.624621"
}
Filipović, N., Ušjak, D., Milenković, M., Zheng, K., Liverani, L., Boccaccini, A. R.,& Stevanović, M.. (2021). Comparative Study of the Antimicrobial Activity of Selenium Nanoparticles With Different Surface Chemistry and Structure. in Frontiers in Bioengineering and Biotechnology
Frontiers Media S.A.., 8.
https://doi.org/10.3389/fbioe.2020.624621
Filipović N, Ušjak D, Milenković M, Zheng K, Liverani L, Boccaccini AR, Stevanović M. Comparative Study of the Antimicrobial Activity of Selenium Nanoparticles With Different Surface Chemistry and Structure. in Frontiers in Bioengineering and Biotechnology. 2021;8.
doi:10.3389/fbioe.2020.624621 .
Filipović, Nenad, Ušjak, Dušan, Milenković, Marina, Zheng, Kai, Liverani, Liliana, Boccaccini, Aldo R., Stevanović, Magdalena, "Comparative Study of the Antimicrobial Activity of Selenium Nanoparticles With Different Surface Chemistry and Structure" in Frontiers in Bioengineering and Biotechnology, 8 (2021),
https://doi.org/10.3389/fbioe.2020.624621 . .
3
104
12
100

Methoxy-Substituted Hydroxychalcone Reduces Biofilm Production, Adhesion and Surface Motility of Acinetobacter baumannii by Inhibiting ompA Gene Expression

Ušjak, Dušan; Dinić, Miroslav; Novović, Katarina; Ivković, Branka; Filipović, Nenad; Stevanović, Magdalena; Milenković, Marina

(Wiley-VCH Verlag, 2021)

TY  - JOUR
AU  - Ušjak, Dušan
AU  - Dinić, Miroslav
AU  - Novović, Katarina
AU  - Ivković, Branka
AU  - Filipović, Nenad
AU  - Stevanović, Magdalena
AU  - Milenković, Marina
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3752
AB  - An increasing lack of available therapeutic options against Acinetobacter baumannii urged researchers to seek alternative ways to fight this extremely resistant nosocomial pathogen. Targeting its virulence appears to be a promising strategy, as it offers considerably reduced selection of resistant mutants. In this study, we tested antibiofilm potential of four synthetic chalcone derivatives against A. baumannii. Compound that showed the greatest activity was selected for further evaluation of its antivirulence properties. Real-time PCR was used to evaluate mRNA expression of biofilm-associated virulence factor genes (ompA, bap, abaI) in treated A. baumannii strains. Also, we examined virulence properties related to the expression of these genes, such as fibronectin- and collagen-mediated adhesion, surface motility, and quorum-sensing activity. The results revealed that the expression of all tested genes is downregulated together with the reduction of adhesion and motility. The conclusion is that 2′-hydroxy-2-methoxychalcone exhibits antivirulence activity against A. baumannii by inhibiting the expression of ompA and bap genes, which is reflected in reduced biofilm formation, adhesion, and surface motility.
PB  - Wiley-VCH Verlag
T2  - Chemistry and Biodiversity
T1  - Methoxy-Substituted Hydroxychalcone Reduces Biofilm Production,
Adhesion and Surface Motility of Acinetobacter baumannii by
Inhibiting ompA Gene Expression
VL  - 18
IS  - 1
DO  - 10.1002/cbdv.202000786
ER  - 
@article{
author = "Ušjak, Dušan and Dinić, Miroslav and Novović, Katarina and Ivković, Branka and Filipović, Nenad and Stevanović, Magdalena and Milenković, Marina",
year = "2021",
abstract = "An increasing lack of available therapeutic options against Acinetobacter baumannii urged researchers to seek alternative ways to fight this extremely resistant nosocomial pathogen. Targeting its virulence appears to be a promising strategy, as it offers considerably reduced selection of resistant mutants. In this study, we tested antibiofilm potential of four synthetic chalcone derivatives against A. baumannii. Compound that showed the greatest activity was selected for further evaluation of its antivirulence properties. Real-time PCR was used to evaluate mRNA expression of biofilm-associated virulence factor genes (ompA, bap, abaI) in treated A. baumannii strains. Also, we examined virulence properties related to the expression of these genes, such as fibronectin- and collagen-mediated adhesion, surface motility, and quorum-sensing activity. The results revealed that the expression of all tested genes is downregulated together with the reduction of adhesion and motility. The conclusion is that 2′-hydroxy-2-methoxychalcone exhibits antivirulence activity against A. baumannii by inhibiting the expression of ompA and bap genes, which is reflected in reduced biofilm formation, adhesion, and surface motility.",
publisher = "Wiley-VCH Verlag",
journal = "Chemistry and Biodiversity",
title = "Methoxy-Substituted Hydroxychalcone Reduces Biofilm Production,
Adhesion and Surface Motility of Acinetobacter baumannii by
Inhibiting ompA Gene Expression",
volume = "18",
number = "1",
doi = "10.1002/cbdv.202000786"
}
Ušjak, D., Dinić, M., Novović, K., Ivković, B., Filipović, N., Stevanović, M.,& Milenković, M.. (2021). Methoxy-Substituted Hydroxychalcone Reduces Biofilm Production,
Adhesion and Surface Motility of Acinetobacter baumannii by
Inhibiting ompA Gene Expression. in Chemistry and Biodiversity
Wiley-VCH Verlag., 18(1).
https://doi.org/10.1002/cbdv.202000786
Ušjak D, Dinić M, Novović K, Ivković B, Filipović N, Stevanović M, Milenković M. Methoxy-Substituted Hydroxychalcone Reduces Biofilm Production,
Adhesion and Surface Motility of Acinetobacter baumannii by
Inhibiting ompA Gene Expression. in Chemistry and Biodiversity. 2021;18(1).
doi:10.1002/cbdv.202000786 .
Ušjak, Dušan, Dinić, Miroslav, Novović, Katarina, Ivković, Branka, Filipović, Nenad, Stevanović, Magdalena, Milenković, Marina, "Methoxy-Substituted Hydroxychalcone Reduces Biofilm Production,
Adhesion and Surface Motility of Acinetobacter baumannii by
Inhibiting ompA Gene Expression" in Chemistry and Biodiversity, 18, no. 1 (2021),
https://doi.org/10.1002/cbdv.202000786 . .
2
8
8

In vitro and in silico investingation of antimicrobial activity of essential oils from two Pastinaca sativa subspecies

Ušjak, Ljuboš; Drobac, Milica; Ivanov, Marija; Soković, Marina; Milenković, Marina; Niketić, Marjan; Petrović, Silvana

(University Prince of Songkla, Thailand, 2021)

TY  - CONF
AU  - Ušjak, Ljuboš
AU  - Drobac, Milica
AU  - Ivanov, Marija
AU  - Soković, Marina
AU  - Milenković, Marina
AU  - Niketić, Marjan
AU  - Petrović, Silvana
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4615
AB  - INTRODUCTION:
Cultivated parsnip (Pastinaca sativa subsp. sativa L., Apiaceae) root is a well-known vegetable, common ingredient of soups, stews, salads, casseroles etc. Besides, its leaves and young shoots can be added to soups and fruits are used as a condiment. Furthermore, young shoots of wild-growing parsnips, e.g. P. sativa subsp. urens (Req. ex Godr.) Čelak., are consumed pickled
or in salads or soups and it is considered that their essential oil acts as a natural preservative.

OBJECTIVES:
To investigate and compare the antimicrobial activity of the essential oils obtained from the roots, leaves, stems, flowers and fruits of cultivated P. sativa subsp. sativa and wild-growing P. sativa subsp. urens collected in Serbia. Furthermore, the most active essential oil constituents (against the most susceptible microorganisms) were predicted in silico.

METHOD / DESIGN:
Minimum inhibitory concentrations (MICs) and minimum bactericidal/fungicidal concentrations (MBCs/MFCs) of the essential oils (isolated by hydrodistillation using Clevenger-type apparatus) were determined by microdilution method against three Gram-positive bacteria: Staphylococcus aureus ATCC 11632, Bacillus cereus clinical isolate and Listeria monocytogenes NCTC 7973, three Gram-negative bacteria: Escherichia coli ATCC 25922, Salmonella Typhimurium ATCC 13311 and Enterobacter cloacae ATCC 35030, three Candida standard strains: C. albicans ATCC 10231, C. tropicalis ATCC 750 and C. parapsilosis ATCC 22019, and three Candida isolates from oral cavity: C. albicans 475/15, C. krusei H1/16 and C. glabrata 4/6/15. Pharmacokinetic properties of the compounds present in at least one oil in the quantity ≥ 1% (determined by GC-FID and GC-MS) were initially evaluated using SwissADME web tool and molecular docking was performed using AutoDock Vina 1.1.2 (interactions were visualized using Discovery Studio Visualizer 2019).

RESULTS:
All the investigated essential oils of the two Pastinaca sativa subspecies were able to reduce the growth of different tested Candida strains (MIC range 0.25-2 mg/mL; MFC range 0.5-4 mg/mL). The most promising activity was observed for both root oils (MIC range 0.25-1 mg/mL; MFC range 0.5-2 mg/mL). Among investigated Candida strains, C. parapsilosis strain was the most sensitive to these essential oils (MIC range 0.25-1 mg/mL; MFC range 0.5-2 mg/mL). The antibacterial activity of the tested essential oils was lower compared to their anticandidal potential (MIC range 1-4 mg/mL; MBC range 2-8 mg/mL). Thirty compounds were present in at least one oil in the quantity ≥ 1%. Estimation of pharmacokinetic properties using SwissADME tool suggested that 23 of these compounds are inhibitors of some of the cytochrome P450 system isoenzymes. This fact led
to assumption that they could also act against fungal sterol 14α-demethylase (CYP51), which is a common target of antifungal drugs (e.g., ketoconazole). Thus, the compounds (3D structures downloaded from PubChem) were docked to the active site of this enzyme (downloaded from Protein Data Bank, PDB code 5TZ1). The highest affinities were predicted for sesquiterpenes
caryophyllene oxide, (E)-caryophyllene, germacrene D, α-copaene, β-bourbonene and δ-cadinene (free binding energies from -9.4 to -8.7 kcal/mol; ketoconazole -11.6 kcal/mol). These compounds were present in somewhat lower quantities in the essential oils (≤ 9.9%). For dominant compounds of the tested essential oils, e.g. myristicin, γ-palmitolactone and octyl butanoate a bit lower affinities were predicted (free binding energies from -7.3 to -5.8 kcal/mol). Tested compounds mostly docked near the heme of the enzyme and formed hydrophobic interactions with the amino acid residues of the active site. According to SwissADME tool, four of five most active compounds have low absorption from gastrointestinal tract and higher skin permeation value, while caryophyllene oxide and three dominant compounds have high absorption and lower skin permeation value (similarly to ketoconazole).

CONCLUSIONS:
Investigated parsnips represent sources of essential oils and compounds with anticandidal activity.
PB  - University Prince of Songkla, Thailand
PB  - University of Novi Sad, Faculty of Sciences, Serbia, Novi Sad
C3  - The International Bioscience Conference and the 8th International PSU – UNS Bioscience Conference - IBSC2021 Book of Abstracts
T1  - In vitro and in silico investingation of antimicrobial activity of essential oils from two Pastinaca sativa subspecies
SP  - 188
EP  - 189
UR  - https://hdl.handle.net/21.15107/rcub_farfar_4615
ER  - 
@conference{
author = "Ušjak, Ljuboš and Drobac, Milica and Ivanov, Marija and Soković, Marina and Milenković, Marina and Niketić, Marjan and Petrović, Silvana",
year = "2021",
abstract = "INTRODUCTION:
Cultivated parsnip (Pastinaca sativa subsp. sativa L., Apiaceae) root is a well-known vegetable, common ingredient of soups, stews, salads, casseroles etc. Besides, its leaves and young shoots can be added to soups and fruits are used as a condiment. Furthermore, young shoots of wild-growing parsnips, e.g. P. sativa subsp. urens (Req. ex Godr.) Čelak., are consumed pickled
or in salads or soups and it is considered that their essential oil acts as a natural preservative.

OBJECTIVES:
To investigate and compare the antimicrobial activity of the essential oils obtained from the roots, leaves, stems, flowers and fruits of cultivated P. sativa subsp. sativa and wild-growing P. sativa subsp. urens collected in Serbia. Furthermore, the most active essential oil constituents (against the most susceptible microorganisms) were predicted in silico.

METHOD / DESIGN:
Minimum inhibitory concentrations (MICs) and minimum bactericidal/fungicidal concentrations (MBCs/MFCs) of the essential oils (isolated by hydrodistillation using Clevenger-type apparatus) were determined by microdilution method against three Gram-positive bacteria: Staphylococcus aureus ATCC 11632, Bacillus cereus clinical isolate and Listeria monocytogenes NCTC 7973, three Gram-negative bacteria: Escherichia coli ATCC 25922, Salmonella Typhimurium ATCC 13311 and Enterobacter cloacae ATCC 35030, three Candida standard strains: C. albicans ATCC 10231, C. tropicalis ATCC 750 and C. parapsilosis ATCC 22019, and three Candida isolates from oral cavity: C. albicans 475/15, C. krusei H1/16 and C. glabrata 4/6/15. Pharmacokinetic properties of the compounds present in at least one oil in the quantity ≥ 1% (determined by GC-FID and GC-MS) were initially evaluated using SwissADME web tool and molecular docking was performed using AutoDock Vina 1.1.2 (interactions were visualized using Discovery Studio Visualizer 2019).

RESULTS:
All the investigated essential oils of the two Pastinaca sativa subspecies were able to reduce the growth of different tested Candida strains (MIC range 0.25-2 mg/mL; MFC range 0.5-4 mg/mL). The most promising activity was observed for both root oils (MIC range 0.25-1 mg/mL; MFC range 0.5-2 mg/mL). Among investigated Candida strains, C. parapsilosis strain was the most sensitive to these essential oils (MIC range 0.25-1 mg/mL; MFC range 0.5-2 mg/mL). The antibacterial activity of the tested essential oils was lower compared to their anticandidal potential (MIC range 1-4 mg/mL; MBC range 2-8 mg/mL). Thirty compounds were present in at least one oil in the quantity ≥ 1%. Estimation of pharmacokinetic properties using SwissADME tool suggested that 23 of these compounds are inhibitors of some of the cytochrome P450 system isoenzymes. This fact led
to assumption that they could also act against fungal sterol 14α-demethylase (CYP51), which is a common target of antifungal drugs (e.g., ketoconazole). Thus, the compounds (3D structures downloaded from PubChem) were docked to the active site of this enzyme (downloaded from Protein Data Bank, PDB code 5TZ1). The highest affinities were predicted for sesquiterpenes
caryophyllene oxide, (E)-caryophyllene, germacrene D, α-copaene, β-bourbonene and δ-cadinene (free binding energies from -9.4 to -8.7 kcal/mol; ketoconazole -11.6 kcal/mol). These compounds were present in somewhat lower quantities in the essential oils (≤ 9.9%). For dominant compounds of the tested essential oils, e.g. myristicin, γ-palmitolactone and octyl butanoate a bit lower affinities were predicted (free binding energies from -7.3 to -5.8 kcal/mol). Tested compounds mostly docked near the heme of the enzyme and formed hydrophobic interactions with the amino acid residues of the active site. According to SwissADME tool, four of five most active compounds have low absorption from gastrointestinal tract and higher skin permeation value, while caryophyllene oxide and three dominant compounds have high absorption and lower skin permeation value (similarly to ketoconazole).

CONCLUSIONS:
Investigated parsnips represent sources of essential oils and compounds with anticandidal activity.",
publisher = "University Prince of Songkla, Thailand, University of Novi Sad, Faculty of Sciences, Serbia, Novi Sad",
journal = "The International Bioscience Conference and the 8th International PSU – UNS Bioscience Conference - IBSC2021 Book of Abstracts",
title = "In vitro and in silico investingation of antimicrobial activity of essential oils from two Pastinaca sativa subspecies",
pages = "188-189",
url = "https://hdl.handle.net/21.15107/rcub_farfar_4615"
}
Ušjak, L., Drobac, M., Ivanov, M., Soković, M., Milenković, M., Niketić, M.,& Petrović, S.. (2021). In vitro and in silico investingation of antimicrobial activity of essential oils from two Pastinaca sativa subspecies. in The International Bioscience Conference and the 8th International PSU – UNS Bioscience Conference - IBSC2021 Book of Abstracts
University Prince of Songkla, Thailand., 188-189.
https://hdl.handle.net/21.15107/rcub_farfar_4615
Ušjak L, Drobac M, Ivanov M, Soković M, Milenković M, Niketić M, Petrović S. In vitro and in silico investingation of antimicrobial activity of essential oils from two Pastinaca sativa subspecies. in The International Bioscience Conference and the 8th International PSU – UNS Bioscience Conference - IBSC2021 Book of Abstracts. 2021;:188-189.
https://hdl.handle.net/21.15107/rcub_farfar_4615 .
Ušjak, Ljuboš, Drobac, Milica, Ivanov, Marija, Soković, Marina, Milenković, Marina, Niketić, Marjan, Petrović, Silvana, "In vitro and in silico investingation of antimicrobial activity of essential oils from two Pastinaca sativa subspecies" in The International Bioscience Conference and the 8th International PSU – UNS Bioscience Conference - IBSC2021 Book of Abstracts (2021):188-189,
https://hdl.handle.net/21.15107/rcub_farfar_4615 .

The chemical composition, antimicrobial and antiradical properties of the essential oil of Achillea grandifolia aerial parts from Serbia

Drobac, Milica; Kukić-Marković, Jelena; Milenković, Marina; Niketić, Marjan; Petrović, Silvana

(Institute of Botany and Botanical Garden "Jevremovac", University of, 2021)

TY  - JOUR
AU  - Drobac, Milica
AU  - Kukić-Marković, Jelena
AU  - Milenković, Marina
AU  - Niketić, Marjan
AU  - Petrović, Silvana
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4000
AB  - Aromatic plants and essential oils have many applications in medicine, pharmaceuticals, cosmetics, and the food industry. The essential oil of the flowering aerial parts of Achillea grandifolia, obtained by hydrodistillation, was analyzed for its constituents and investigated for antimicrobial and radical scavenging activity. The essential oil was characterized by a high amount of oxygenated monoterpenes (72.7%) with 1,8-cineole (29.2%) and camphor (23.4%) being the most abundant. Sesquiterpenes were present in smaller quantities (4.8%). Antimicrobial activity was tested against eight ATCC bacterial strains and two ATCC strains of Candida albicans. The essential oil exhibited highly pronounced antimicrobial activity against Micrococcus luteus with a MIC value of 3.50 μg/mL, as well as significant antimicrobial activity (<100 μg/mL) against Staphylococcus aureus, S. epidermidis and Bacillus subtilis. Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa were resistant. Achillea grandifolia essential oil exhibited concentration-dependent antiradical activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical with an SC50 value of 5.4 mg/mL. The TLC-DPPH assay revealed two main light yellow spots indicating components with anti-DPPH activity, which after isolation were identified as 1,8-cineole and camphor.
AB  - Aromatične biljke i etarska ulja nalaze primenu u medicini, farmaciji, kozmetičkoj, parfimerijskoj i prehrambenoj industriji. Etarsko ulje iz nadzemnih delova u cvetu Achillea grandifolia izolovano je destilacijom vodenom parom i ispitivano u pogledu hemijskog sastava, antimikrobne i antiradikalske aktivnosti. Etarsko ulje se odlikovalo velikom količinom oksidovanih monoterpena (72,7%) sa 1,8-cineolom (29,2%) i kamforom (23,4%) kao dominantnim jedinjenjima. Seskviterpeni su bili prisutni u manjoj količini (4,8%). Antimikrobna aktivnost je ispitivana prema osam ATCC sojeva bakterija i dva ATCC soja Candida albicans. Etarsko ulje je pokazalo veoma izraženu antimikrobnu aktivnost prema Micrococcus luteus sa MIC vrednošću od 3,50 μg/mL, kao i značajnu aktivnost prema Staphylococcus aureus, S. epidermidis i Bacillus subtilis. Gram-negativne bakterije Escherichia coli i Pseudomonas aeruginosa bile su rezistentne. Etarsko ulje je ispoljilo dozno-zavisnu antiradikalsku aktivnost prema DPPH radikalu sa SC50 vrednošću od 5,4 mg/mL. U TLC-DPPH testu uočene su dve glavne žute zone koje odgovaraju anti-DPPH aktivnim jedinjenjima, a koja su nakon izolovanja identifikovana kao 1,8-cineol i kamfor.
PB  - Institute of Botany and Botanical Garden "Jevremovac", University of
T2  - Botanica Serbica
T1  - The chemical composition, antimicrobial and antiradical properties of the essential oil of Achillea grandifolia aerial parts from Serbia
T1  - Hemijski sastav, antimikrobna i antiradikalska svojstva etarskog ulja nadzemnih delova Achillea grandifolia iz Srbije
VL  - 45
IS  - 2
SP  - 233
EP  - 240
DO  - 10.2298/BOTSERB2102233D
ER  - 
@article{
author = "Drobac, Milica and Kukić-Marković, Jelena and Milenković, Marina and Niketić, Marjan and Petrović, Silvana",
year = "2021",
abstract = "Aromatic plants and essential oils have many applications in medicine, pharmaceuticals, cosmetics, and the food industry. The essential oil of the flowering aerial parts of Achillea grandifolia, obtained by hydrodistillation, was analyzed for its constituents and investigated for antimicrobial and radical scavenging activity. The essential oil was characterized by a high amount of oxygenated monoterpenes (72.7%) with 1,8-cineole (29.2%) and camphor (23.4%) being the most abundant. Sesquiterpenes were present in smaller quantities (4.8%). Antimicrobial activity was tested against eight ATCC bacterial strains and two ATCC strains of Candida albicans. The essential oil exhibited highly pronounced antimicrobial activity against Micrococcus luteus with a MIC value of 3.50 μg/mL, as well as significant antimicrobial activity (<100 μg/mL) against Staphylococcus aureus, S. epidermidis and Bacillus subtilis. Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa were resistant. Achillea grandifolia essential oil exhibited concentration-dependent antiradical activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical with an SC50 value of 5.4 mg/mL. The TLC-DPPH assay revealed two main light yellow spots indicating components with anti-DPPH activity, which after isolation were identified as 1,8-cineole and camphor., Aromatične biljke i etarska ulja nalaze primenu u medicini, farmaciji, kozmetičkoj, parfimerijskoj i prehrambenoj industriji. Etarsko ulje iz nadzemnih delova u cvetu Achillea grandifolia izolovano je destilacijom vodenom parom i ispitivano u pogledu hemijskog sastava, antimikrobne i antiradikalske aktivnosti. Etarsko ulje se odlikovalo velikom količinom oksidovanih monoterpena (72,7%) sa 1,8-cineolom (29,2%) i kamforom (23,4%) kao dominantnim jedinjenjima. Seskviterpeni su bili prisutni u manjoj količini (4,8%). Antimikrobna aktivnost je ispitivana prema osam ATCC sojeva bakterija i dva ATCC soja Candida albicans. Etarsko ulje je pokazalo veoma izraženu antimikrobnu aktivnost prema Micrococcus luteus sa MIC vrednošću od 3,50 μg/mL, kao i značajnu aktivnost prema Staphylococcus aureus, S. epidermidis i Bacillus subtilis. Gram-negativne bakterije Escherichia coli i Pseudomonas aeruginosa bile su rezistentne. Etarsko ulje je ispoljilo dozno-zavisnu antiradikalsku aktivnost prema DPPH radikalu sa SC50 vrednošću od 5,4 mg/mL. U TLC-DPPH testu uočene su dve glavne žute zone koje odgovaraju anti-DPPH aktivnim jedinjenjima, a koja su nakon izolovanja identifikovana kao 1,8-cineol i kamfor.",
publisher = "Institute of Botany and Botanical Garden "Jevremovac", University of",
journal = "Botanica Serbica",
title = "The chemical composition, antimicrobial and antiradical properties of the essential oil of Achillea grandifolia aerial parts from Serbia, Hemijski sastav, antimikrobna i antiradikalska svojstva etarskog ulja nadzemnih delova Achillea grandifolia iz Srbije",
volume = "45",
number = "2",
pages = "233-240",
doi = "10.2298/BOTSERB2102233D"
}
Drobac, M., Kukić-Marković, J., Milenković, M., Niketić, M.,& Petrović, S.. (2021). The chemical composition, antimicrobial and antiradical properties of the essential oil of Achillea grandifolia aerial parts from Serbia. in Botanica Serbica
Institute of Botany and Botanical Garden "Jevremovac", University of., 45(2), 233-240.
https://doi.org/10.2298/BOTSERB2102233D
Drobac M, Kukić-Marković J, Milenković M, Niketić M, Petrović S. The chemical composition, antimicrobial and antiradical properties of the essential oil of Achillea grandifolia aerial parts from Serbia. in Botanica Serbica. 2021;45(2):233-240.
doi:10.2298/BOTSERB2102233D .
Drobac, Milica, Kukić-Marković, Jelena, Milenković, Marina, Niketić, Marjan, Petrović, Silvana, "The chemical composition, antimicrobial and antiradical properties of the essential oil of Achillea grandifolia aerial parts from Serbia" in Botanica Serbica, 45, no. 2 (2021):233-240,
https://doi.org/10.2298/BOTSERB2102233D . .
1
1

Multifunctional composites based on alginate hydrogels for potential use in wound dressings

Obradović, Bojana; Stojkovska, Jasmina; Osmokrović, Andrea; Mišković Stanković, Vesna; Jančić, Ivan; Milenković, Marina

(Savez farmaceutskih udruženja Srbije (SFUS), 2021)

TY  - CONF
AU  - Obradović, Bojana
AU  - Stojkovska, Jasmina
AU  - Osmokrović, Andrea
AU  - Mišković Stanković, Vesna
AU  - Jančić, Ivan
AU  - Milenković, Marina
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4666
AB  - Alginate hydrogels are widely used in wound dressings due to hydrophilicity, biocompatibility,
flexibility, and high sorption capacity, providing effective moisture regulation in wounds and inducing
rapid granulation and reepithelization of the damaged tissue. However, these dressings are not
bioactive so that different methodologies have been investigated to extend functionality of alginate
hydrogels.
In the present work, we show several approaches to achieve this aim by addition of different
biologically active components. These include incorporation of silver nanoparticles as potent
antimicrobial agents (1), bioactive honey components (2), activated charcoal (AC) particles as carriers
of therapeutically active agents (3) as well as the use of Zn-alginate hydrogels that release zinc ions (4).
The obtained composites were comprehensively characterized regarding composition, cytotoxicity,
antibacterial activity, release kinetics of active agents and wound treatment in a rat model.
Ag/alginate nanocomposite hydrogels releasing silver ions and/or nanoparticles exhibited high
bactericidal activity against a broad spectrum of standard and multi-drug resistant clinical bacterial
strains (Escherichia coli, Staphylococcus aureus, methicillin-resistant Staphylococcus aureus – MRSA,
Acinetobacter baumannii and Pseudomonas aeruginosa). Especially interesting results were obtained
against 13 clinical isolates of A. baumannii, which were completely extinguished over 48 h in 6 cases
(2). However, in 3 clinical isolates, antibacterial effects were not noticed implying possibility for
development of bacterial resistance to silver. In the treatment of 2nd degree burns in rats Ag/alginate
nanocomposites exhibited the same efficiency as commercial medical products (5).
Composite alginate hydrogels with immobilized AC particles impregnated with povidone iodine
(PVP-I) as a model therapeutically active agent, were developed with the aim to provide controlled
particle release in the wound without actually releasing the adsorbed substance, thus achieving the
desired activity without adverse effects by systemic absorption. The composite Ca-alginate hydrogels
induced strong bactericidal effects against two standard bacterial strains and clinical multi-resistant
wound isolates (MRSA, E. coli, P. aeruginosa, Еnterococcus faecalis and Proteus mirabilis) without
releasing PVP-I in the environment (3). Furthermore, composite Zn-alginate hydrogels released zinc
ions in addition to AC particles with adsorbed PVP-I, which induced additional microbicidal effects on
one wild yeast strain (Candida albicans). The obtained bactericidal effects were ascribed to effective
adsorption of bacteria onto AC particles and further direct contact with the adsorbed iodine, while the
antifungal activity against C. albicans was assigned to released Zn 2+.
Overall, the developed composite alginate hydrogels have shown high potentials for utilization
in variety of multifunctional wound dressings according to the specific needs.
AB  - Alginatni hidrogelovi se široko koriste u oblogama za rane zbog svoje hidrofilnosti,
biokompatibilnosti, fleksibilnosti i velikog sorpcionog kapaciteta čime obezbeđuju efikasnu regulaciju
vlažnosti rane i podstiču brzu granulaciju i reepitelizaciju oštećenog tkiva. Međutim, ove obloge nisu
bioaktivne tako da su istraživane različite metodologije kako bi se proširila funkcionalnost alginatnih
hidrogelova.
U ovom radu je prikazano nekoliko pristupa ostvarivanju tog cilja dodatkom različitih biološki
aktivnih komponenata. Ovi pristupi uključuju inkorporaciju nanočestica srebra kao potentnog
antimikrobnog agensa (1), bioaktivnih komponenata meda (2), čestica aktivnog uglja (AU) kao nosača
terapeutski aktivnih agenasa (3), kao i primenu hidrogelova Zn-alginata koji otpuštaju jone cinka.
Dobijeni kompoziti su sveobuhvatno karakterisani u pogledu sastava, citotoksičnosti, antibakterijske
aktivnosti, kinetike otpuštanja aktivnih agenasa i tretmana rana u eksperimentalnom modelu
opekotina na pacovima.
Ag/alginatni nanokompozitni hydrogelovi su usled otpuštanja jona i/ili nanočestica srebra,
pokazali izraženu baktericidnu aktivnost prema širokom spektru standardnih i kliničkih multi-
rezistentnih bakterijskih sojeva (Escherichia coli, Staphylococcus aureus, meticilin-resistentni
Staphylococcus aureus – MRSA, Acinetobacter baumannii i Pseudomonas aeruginosa). Posebno
interesantni rezultati su dobijeni u kulturama 13 kliničkih izolata A. baumannii, gde je u 6 slučajeva
postignut potpun baktericidan efekat u toku 48 h (2). Ipak, kod 3 klinička izolata nije postignuto
antibakterijsko dejstvo što ukazuje na mogućnost razvoja bakterijske rezistencije na srebro. U
tretmanu opekotina drugog stepena na pacovima, Ag/alginatni nanokompoziti su pokazali istu
efikasnost kao komercijalni medicinski proizvodi.
Kompozitni alginatni hidrogelovi sa imobilisanim česticama AU impregniranih povidon-jodom
kao model terapeutski aktivnom komponentom, su razvijeni sa ciljem da obezbede kontrolisano
otpuštanje čestica AU u rani bez otpuštanja adsorbovane supstance kako bi se na taj način postiglo
željeno dejstvo bez neželjenih efekata sistemske apsorpcije. Kompozitni Ca-alginatni hidrogelovi su
pokazali jake baktericidne efekte na dva standardna bakterijska soja i nekoliko kliničkih multi-
rezistentnih izolata iz rana (MRSA, E. coli, P. aeruginosa, Еnterococcus faecalis i Proteus mirabilis) bez
otpuštanja povidon-joda u okolinu (3). Isto tako, kompozitni Zn-alginatni hidrogelovi su otpuštali jone
cinka uz otpuštanje AU čestica sa adsorbovanim povidon-jodom što je prouzrokovalo dodatno
mikrobicidno dejstvo na jedan divlji soj gljivice Candida albicans. Dobijeni baktericidni efekti su
pripisani efikasnoj adsorpciji bakterija na čestice AU i daljem direktnom kontaktu adsorbovanog joda
sa ćelijskom membranom bakterija, dok je antifungalna aktivnost u odnosu na C. albicans pripisana
otpuštenim Zn 2+ jonima.
Može se zaključiti da su razvijeni kompozitni alginatni hdrogelovi pokazali veliki potencijal za
primenu u raznovrsnim multifunkcionalnim oblogama za rane prilagođenim specifičnim potrebama.
PB  - Savez farmaceutskih udruženja Srbije (SFUS)
C3  - Arhiv za farmaciju
T1  - Multifunctional composites based on alginate hydrogels for potential use in wound dressings
T1  - Multifunkcionalni kompoziti na bazi alginatnih hidrogelova za potencijalnu primenu u oblogama za rane
VL  - 71
IS  - 5 suplement
SP  - S22
EP  - S23
UR  - https://hdl.handle.net/21.15107/rcub_farfar_4666
ER  - 
@conference{
author = "Obradović, Bojana and Stojkovska, Jasmina and Osmokrović, Andrea and Mišković Stanković, Vesna and Jančić, Ivan and Milenković, Marina",
year = "2021",
abstract = "Alginate hydrogels are widely used in wound dressings due to hydrophilicity, biocompatibility,
flexibility, and high sorption capacity, providing effective moisture regulation in wounds and inducing
rapid granulation and reepithelization of the damaged tissue. However, these dressings are not
bioactive so that different methodologies have been investigated to extend functionality of alginate
hydrogels.
In the present work, we show several approaches to achieve this aim by addition of different
biologically active components. These include incorporation of silver nanoparticles as potent
antimicrobial agents (1), bioactive honey components (2), activated charcoal (AC) particles as carriers
of therapeutically active agents (3) as well as the use of Zn-alginate hydrogels that release zinc ions (4).
The obtained composites were comprehensively characterized regarding composition, cytotoxicity,
antibacterial activity, release kinetics of active agents and wound treatment in a rat model.
Ag/alginate nanocomposite hydrogels releasing silver ions and/or nanoparticles exhibited high
bactericidal activity against a broad spectrum of standard and multi-drug resistant clinical bacterial
strains (Escherichia coli, Staphylococcus aureus, methicillin-resistant Staphylococcus aureus – MRSA,
Acinetobacter baumannii and Pseudomonas aeruginosa). Especially interesting results were obtained
against 13 clinical isolates of A. baumannii, which were completely extinguished over 48 h in 6 cases
(2). However, in 3 clinical isolates, antibacterial effects were not noticed implying possibility for
development of bacterial resistance to silver. In the treatment of 2nd degree burns in rats Ag/alginate
nanocomposites exhibited the same efficiency as commercial medical products (5).
Composite alginate hydrogels with immobilized AC particles impregnated with povidone iodine
(PVP-I) as a model therapeutically active agent, were developed with the aim to provide controlled
particle release in the wound without actually releasing the adsorbed substance, thus achieving the
desired activity without adverse effects by systemic absorption. The composite Ca-alginate hydrogels
induced strong bactericidal effects against two standard bacterial strains and clinical multi-resistant
wound isolates (MRSA, E. coli, P. aeruginosa, Еnterococcus faecalis and Proteus mirabilis) without
releasing PVP-I in the environment (3). Furthermore, composite Zn-alginate hydrogels released zinc
ions in addition to AC particles with adsorbed PVP-I, which induced additional microbicidal effects on
one wild yeast strain (Candida albicans). The obtained bactericidal effects were ascribed to effective
adsorption of bacteria onto AC particles and further direct contact with the adsorbed iodine, while the
antifungal activity against C. albicans was assigned to released Zn 2+.
Overall, the developed composite alginate hydrogels have shown high potentials for utilization
in variety of multifunctional wound dressings according to the specific needs., Alginatni hidrogelovi se široko koriste u oblogama za rane zbog svoje hidrofilnosti,
biokompatibilnosti, fleksibilnosti i velikog sorpcionog kapaciteta čime obezbeđuju efikasnu regulaciju
vlažnosti rane i podstiču brzu granulaciju i reepitelizaciju oštećenog tkiva. Međutim, ove obloge nisu
bioaktivne tako da su istraživane različite metodologije kako bi se proširila funkcionalnost alginatnih
hidrogelova.
U ovom radu je prikazano nekoliko pristupa ostvarivanju tog cilja dodatkom različitih biološki
aktivnih komponenata. Ovi pristupi uključuju inkorporaciju nanočestica srebra kao potentnog
antimikrobnog agensa (1), bioaktivnih komponenata meda (2), čestica aktivnog uglja (AU) kao nosača
terapeutski aktivnih agenasa (3), kao i primenu hidrogelova Zn-alginata koji otpuštaju jone cinka.
Dobijeni kompoziti su sveobuhvatno karakterisani u pogledu sastava, citotoksičnosti, antibakterijske
aktivnosti, kinetike otpuštanja aktivnih agenasa i tretmana rana u eksperimentalnom modelu
opekotina na pacovima.
Ag/alginatni nanokompozitni hydrogelovi su usled otpuštanja jona i/ili nanočestica srebra,
pokazali izraženu baktericidnu aktivnost prema širokom spektru standardnih i kliničkih multi-
rezistentnih bakterijskih sojeva (Escherichia coli, Staphylococcus aureus, meticilin-resistentni
Staphylococcus aureus – MRSA, Acinetobacter baumannii i Pseudomonas aeruginosa). Posebno
interesantni rezultati su dobijeni u kulturama 13 kliničkih izolata A. baumannii, gde je u 6 slučajeva
postignut potpun baktericidan efekat u toku 48 h (2). Ipak, kod 3 klinička izolata nije postignuto
antibakterijsko dejstvo što ukazuje na mogućnost razvoja bakterijske rezistencije na srebro. U
tretmanu opekotina drugog stepena na pacovima, Ag/alginatni nanokompoziti su pokazali istu
efikasnost kao komercijalni medicinski proizvodi.
Kompozitni alginatni hidrogelovi sa imobilisanim česticama AU impregniranih povidon-jodom
kao model terapeutski aktivnom komponentom, su razvijeni sa ciljem da obezbede kontrolisano
otpuštanje čestica AU u rani bez otpuštanja adsorbovane supstance kako bi se na taj način postiglo
željeno dejstvo bez neželjenih efekata sistemske apsorpcije. Kompozitni Ca-alginatni hidrogelovi su
pokazali jake baktericidne efekte na dva standardna bakterijska soja i nekoliko kliničkih multi-
rezistentnih izolata iz rana (MRSA, E. coli, P. aeruginosa, Еnterococcus faecalis i Proteus mirabilis) bez
otpuštanja povidon-joda u okolinu (3). Isto tako, kompozitni Zn-alginatni hidrogelovi su otpuštali jone
cinka uz otpuštanje AU čestica sa adsorbovanim povidon-jodom što je prouzrokovalo dodatno
mikrobicidno dejstvo na jedan divlji soj gljivice Candida albicans. Dobijeni baktericidni efekti su
pripisani efikasnoj adsorpciji bakterija na čestice AU i daljem direktnom kontaktu adsorbovanog joda
sa ćelijskom membranom bakterija, dok je antifungalna aktivnost u odnosu na C. albicans pripisana
otpuštenim Zn 2+ jonima.
Može se zaključiti da su razvijeni kompozitni alginatni hdrogelovi pokazali veliki potencijal za
primenu u raznovrsnim multifunkcionalnim oblogama za rane prilagođenim specifičnim potrebama.",
publisher = "Savez farmaceutskih udruženja Srbije (SFUS)",
journal = "Arhiv za farmaciju",
title = "Multifunctional composites based on alginate hydrogels for potential use in wound dressings, Multifunkcionalni kompoziti na bazi alginatnih hidrogelova za potencijalnu primenu u oblogama za rane",
volume = "71",
number = "5 suplement",
pages = "S22-S23",
url = "https://hdl.handle.net/21.15107/rcub_farfar_4666"
}
Obradović, B., Stojkovska, J., Osmokrović, A., Mišković Stanković, V., Jančić, I.,& Milenković, M.. (2021). Multifunctional composites based on alginate hydrogels for potential use in wound dressings. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije (SFUS)., 71(5 suplement), S22-S23.
https://hdl.handle.net/21.15107/rcub_farfar_4666
Obradović B, Stojkovska J, Osmokrović A, Mišković Stanković V, Jančić I, Milenković M. Multifunctional composites based on alginate hydrogels for potential use in wound dressings. in Arhiv za farmaciju. 2021;71(5 suplement):S22-S23.
https://hdl.handle.net/21.15107/rcub_farfar_4666 .
Obradović, Bojana, Stojkovska, Jasmina, Osmokrović, Andrea, Mišković Stanković, Vesna, Jančić, Ivan, Milenković, Marina, "Multifunctional composites based on alginate hydrogels for potential use in wound dressings" in Arhiv za farmaciju, 71, no. 5 suplement (2021):S22-S23,
https://hdl.handle.net/21.15107/rcub_farfar_4666 .

Enhanced antimicrobial activity and physicochemical stability of rapid pyro-fabricated silver-kaolinite nanocomposite

Awad, Mahmoud E.; López-Galindo, Alberto; Medarević, Đorđe; Milenković, Marina; Ibrić, Svetlana; El-Rahmany, Mahmoud M.; Iborra, César

(Elsevier B.V., 2021)

TY  - JOUR
AU  - Awad, Mahmoud E.
AU  - López-Galindo, Alberto
AU  - Medarević, Đorđe
AU  - Milenković, Marina
AU  - Ibrić, Svetlana
AU  - El-Rahmany, Mahmoud M.
AU  - Iborra, César
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3800
AB  - The present research aims to enhance the antimicrobial activity of kaolinite surfaces by a one-step cost-effective and energy-efficient dry thermal reaction, producing an antibacterial and antifungal silver-kaolinite (Ag-Kao) nanocomposite agent. Pharmaceutical grade kaolin powder samples, with variable kaolinite structural order–disorder degree, were homogeneously mixed with silver nitrate in a proportion 1:4 AgNO3:kaolin (w/w) and sintered at 400 °C for 30 min. The composition, microstructure, microtexture and surface characteristics of the pyro-fabricated nanocomposites were characterized by XRD/XRF diffractometry, differential scanning calorimetry DSC, FT-IR spectroscopy, TEM/EDX, zeta potential (mV) measured within the 2–12 pH range, and BET method. Physicochemical stability was evaluated by silver dissociation testing under close-neutral and acidic conditions with Ag content assay using ICP-OES. The resulting Ag-Kao nanocomposites exhibited bulk silver contents ranging from 9.29% to 13.32% with high physicochemical stability in both neutral and acidic mediums (Ag dissociation rate <0.5% in 5 days). Ag nanocrystals exhibited particle sizes ranging from 5 to 30 nm, which were embedded and reinforced within the kaolinite matrix. The sizes of the Ag nanocrystals and their distribution patterns on the edges and faces of kaolinite platelets were controlled by the structural order–disorder degree. Highly ordered kaolinites (Hinckley Index, HI > 1) produced platelet edge-clustered silver nanocrystals due to the abundance of the dangling hydroxyls on platelet edges, while the highly disordered kaolinite (HI < 1) provided homogeneous platelet basal-doped silver nanocrystals due to the presence of some residual charges by exposed basal hydroxyl groups with interplatelet silver diffusivity. At pH 2, the magnitude of the positive surface charge was influenced by the silver nanocrystal size. Nanocomposites with the smallest silver nanocrystals (10–5 nm) exhibited the highest positive zeta potential (+15.2 mV to +17.0 mV), while those with larger silver nanocrystals (up to 30 nm) indicated lower positive zeta potential values (+9.5 mV to +3.6 mV). Under the same testing conditions using the Mueller-Hinton broth microdilution method, the raw kaolin samples did not show any significant antimicrobial activity, while all the pyro-fabricated Ag-Kao nanocomposite samples showed potent antibacterial and antifungal activity at low doses (MIC range 0.1–0.0125 mg/mL). Therefore, modulation of the effective electrostatic surface charge of the kaolinite platelets, via thermal doping of silver within their basal planes and edges, was found to be strongly dependent on the pH as well as the size and microtexture of the silver nanocrystals (mainly controlled by the order–disorder degree HI). The resulting modified nanostructure, with physicochemical stability and the efficient surface properties of the designed pyro-fabricated nanocomposite, led to an enhanced synergistic biophysical antimicrobial activity.
PB  - Elsevier B.V.
T2  - International Journal of Pharmaceutics
T1  - Enhanced antimicrobial activity and physicochemical stability of rapid pyro-fabricated silver-kaolinite nanocomposite
VL  - 598
DO  - 10.1016/j.ijpharm.2021.120372
ER  - 
@article{
author = "Awad, Mahmoud E. and López-Galindo, Alberto and Medarević, Đorđe and Milenković, Marina and Ibrić, Svetlana and El-Rahmany, Mahmoud M. and Iborra, César",
year = "2021",
abstract = "The present research aims to enhance the antimicrobial activity of kaolinite surfaces by a one-step cost-effective and energy-efficient dry thermal reaction, producing an antibacterial and antifungal silver-kaolinite (Ag-Kao) nanocomposite agent. Pharmaceutical grade kaolin powder samples, with variable kaolinite structural order–disorder degree, were homogeneously mixed with silver nitrate in a proportion 1:4 AgNO3:kaolin (w/w) and sintered at 400 °C for 30 min. The composition, microstructure, microtexture and surface characteristics of the pyro-fabricated nanocomposites were characterized by XRD/XRF diffractometry, differential scanning calorimetry DSC, FT-IR spectroscopy, TEM/EDX, zeta potential (mV) measured within the 2–12 pH range, and BET method. Physicochemical stability was evaluated by silver dissociation testing under close-neutral and acidic conditions with Ag content assay using ICP-OES. The resulting Ag-Kao nanocomposites exhibited bulk silver contents ranging from 9.29% to 13.32% with high physicochemical stability in both neutral and acidic mediums (Ag dissociation rate <0.5% in 5 days). Ag nanocrystals exhibited particle sizes ranging from 5 to 30 nm, which were embedded and reinforced within the kaolinite matrix. The sizes of the Ag nanocrystals and their distribution patterns on the edges and faces of kaolinite platelets were controlled by the structural order–disorder degree. Highly ordered kaolinites (Hinckley Index, HI > 1) produced platelet edge-clustered silver nanocrystals due to the abundance of the dangling hydroxyls on platelet edges, while the highly disordered kaolinite (HI < 1) provided homogeneous platelet basal-doped silver nanocrystals due to the presence of some residual charges by exposed basal hydroxyl groups with interplatelet silver diffusivity. At pH 2, the magnitude of the positive surface charge was influenced by the silver nanocrystal size. Nanocomposites with the smallest silver nanocrystals (10–5 nm) exhibited the highest positive zeta potential (+15.2 mV to +17.0 mV), while those with larger silver nanocrystals (up to 30 nm) indicated lower positive zeta potential values (+9.5 mV to +3.6 mV). Under the same testing conditions using the Mueller-Hinton broth microdilution method, the raw kaolin samples did not show any significant antimicrobial activity, while all the pyro-fabricated Ag-Kao nanocomposite samples showed potent antibacterial and antifungal activity at low doses (MIC range 0.1–0.0125 mg/mL). Therefore, modulation of the effective electrostatic surface charge of the kaolinite platelets, via thermal doping of silver within their basal planes and edges, was found to be strongly dependent on the pH as well as the size and microtexture of the silver nanocrystals (mainly controlled by the order–disorder degree HI). The resulting modified nanostructure, with physicochemical stability and the efficient surface properties of the designed pyro-fabricated nanocomposite, led to an enhanced synergistic biophysical antimicrobial activity.",
publisher = "Elsevier B.V.",
journal = "International Journal of Pharmaceutics",
title = "Enhanced antimicrobial activity and physicochemical stability of rapid pyro-fabricated silver-kaolinite nanocomposite",
volume = "598",
doi = "10.1016/j.ijpharm.2021.120372"
}
Awad, M. E., López-Galindo, A., Medarević, Đ., Milenković, M., Ibrić, S., El-Rahmany, M. M.,& Iborra, C.. (2021). Enhanced antimicrobial activity and physicochemical stability of rapid pyro-fabricated silver-kaolinite nanocomposite. in International Journal of Pharmaceutics
Elsevier B.V.., 598.
https://doi.org/10.1016/j.ijpharm.2021.120372
Awad ME, López-Galindo A, Medarević Đ, Milenković M, Ibrić S, El-Rahmany MM, Iborra C. Enhanced antimicrobial activity and physicochemical stability of rapid pyro-fabricated silver-kaolinite nanocomposite. in International Journal of Pharmaceutics. 2021;598.
doi:10.1016/j.ijpharm.2021.120372 .
Awad, Mahmoud E., López-Galindo, Alberto, Medarević, Đorđe, Milenković, Marina, Ibrić, Svetlana, El-Rahmany, Mahmoud M., Iborra, César, "Enhanced antimicrobial activity and physicochemical stability of rapid pyro-fabricated silver-kaolinite nanocomposite" in International Journal of Pharmaceutics, 598 (2021),
https://doi.org/10.1016/j.ijpharm.2021.120372 . .
1
11
2
11

Editorial: Antimicrobial Nanostructured Polymeric Materials and Nanocomposites

Stevanović, Magdalena; Vukomanović, Marija; Milenković, Marina; Boccaccini, Aldo R.

(Frontiers Media S.A., 2021)

TY  - JOUR
AU  - Stevanović, Magdalena
AU  - Vukomanović, Marija
AU  - Milenković, Marina
AU  - Boccaccini, Aldo R.
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3948
AB  - Infectious diseases are a significant burden on the public health and the economic stability of societies all over the world. Drug resistance presents an ever-increasing global public health threat that involves all major microbial pathogens and antimicrobial drugs. The considerable concern regarding bacterial resistance to antimicrobial agents, bacterial adhesion, and proliferation has generated intense research in this field. Although urgently needed, an effective and long-lasting solution to this problem, i.e. microbial and especially bacterial colonization, has not yet been found. In the last decades, nanomaterials have attracted much attention because of their unique physical, chemical, and mechanical properties, due to their high surface area and size at the nanoscale. Owing to these extraordinary characteristics, nanomaterials are appropriate candidates for various applications in different fields such as medicine, pharmacy, food industry, etc. New strategies based on the use of nanomaterials such as nanoparticles, nanocapsules, nanogels, nanofibers, nanocomposites, or nanocoatings for controlling microbial virulence factors are very promising. In addition special focus recently is paid on nanostructured polymeric materials and nanocomposites with antimicrobial properties. The increasing attention within the scientific community regarding this topic can be easily assessed by searching the suitable keywords in some recognized literature databases. According to Scopus, in the last 10 years, more than 1,300 peer-reviewed documents have been published jointly containing keywords such as “nanocomposites” and “antimicrobial”. Interestingly, in the more specified search which refers to the utilization of nanostructured polymeric materials, it could be observed a similar profile i.e. growing tendency.
PB  - Frontiers Media S.A.
T2  - Frontiers in Materials
T1  - Editorial: Antimicrobial Nanostructured Polymeric Materials and Nanocomposites
VL  - 8
DO  - 10.3389/fmats.2021.748813
ER  - 
@article{
author = "Stevanović, Magdalena and Vukomanović, Marija and Milenković, Marina and Boccaccini, Aldo R.",
year = "2021",
abstract = "Infectious diseases are a significant burden on the public health and the economic stability of societies all over the world. Drug resistance presents an ever-increasing global public health threat that involves all major microbial pathogens and antimicrobial drugs. The considerable concern regarding bacterial resistance to antimicrobial agents, bacterial adhesion, and proliferation has generated intense research in this field. Although urgently needed, an effective and long-lasting solution to this problem, i.e. microbial and especially bacterial colonization, has not yet been found. In the last decades, nanomaterials have attracted much attention because of their unique physical, chemical, and mechanical properties, due to their high surface area and size at the nanoscale. Owing to these extraordinary characteristics, nanomaterials are appropriate candidates for various applications in different fields such as medicine, pharmacy, food industry, etc. New strategies based on the use of nanomaterials such as nanoparticles, nanocapsules, nanogels, nanofibers, nanocomposites, or nanocoatings for controlling microbial virulence factors are very promising. In addition special focus recently is paid on nanostructured polymeric materials and nanocomposites with antimicrobial properties. The increasing attention within the scientific community regarding this topic can be easily assessed by searching the suitable keywords in some recognized literature databases. According to Scopus, in the last 10 years, more than 1,300 peer-reviewed documents have been published jointly containing keywords such as “nanocomposites” and “antimicrobial”. Interestingly, in the more specified search which refers to the utilization of nanostructured polymeric materials, it could be observed a similar profile i.e. growing tendency.",
publisher = "Frontiers Media S.A.",
journal = "Frontiers in Materials",
title = "Editorial: Antimicrobial Nanostructured Polymeric Materials and Nanocomposites",
volume = "8",
doi = "10.3389/fmats.2021.748813"
}
Stevanović, M., Vukomanović, M., Milenković, M.,& Boccaccini, A. R.. (2021). Editorial: Antimicrobial Nanostructured Polymeric Materials and Nanocomposites. in Frontiers in Materials
Frontiers Media S.A.., 8.
https://doi.org/10.3389/fmats.2021.748813
Stevanović M, Vukomanović M, Milenković M, Boccaccini AR. Editorial: Antimicrobial Nanostructured Polymeric Materials and Nanocomposites. in Frontiers in Materials. 2021;8.
doi:10.3389/fmats.2021.748813 .
Stevanović, Magdalena, Vukomanović, Marija, Milenković, Marina, Boccaccini, Aldo R., "Editorial: Antimicrobial Nanostructured Polymeric Materials and Nanocomposites" in Frontiers in Materials, 8 (2021),
https://doi.org/10.3389/fmats.2021.748813 . .
1

Zinc-quercetin complex – from determination to bioactivity

Uskoković-Marković, Snežana; Milenković, Marina; Pavun, Leposava

(Faculty of Agronomy Čačak, 2020)

TY  - JOUR
AU  - Uskoković-Marković, Snežana
AU  - Milenković, Marina
AU  - Pavun, Leposava
PY  - 2020
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5061
AB  - A B S T R A C T
Flavonoids are a group of polyphenolic compounds widely present in the herbal world and playing an important role in the
human diet. The flavanol quercetin makes up 70% of the total daily intake of flavonoids. Quercetin is able to complex with many
metal ions, and it exhibits potent antioxidative ability. Using the equimolar solution variation method, it was confirmed that
quercetin makes a complex with the zinc(II) ion at pH 5.25, in a stoichiometric ratio quercetin:zinc(II) ion = 2:1, with the
absorption maximum λ=363 nm. This fact was used to develop a simple, precise and accurate assay to determine the content of
quercetin in various samples of heterogeneous composition. The proposed indirect spectrophotometric method can selectively
determine quercetin in concentrations ranging from 0.1 to 6.0 mgL-1, with LOD and LOQ estimated as 0.03 mgL-1 and 0.1 mgL-1,
respectively. The reliability of the proposed method was confirmed by a previously developed RP-HPLC/UV method. The
proposed method was successfully used to determine the quercetin content in dietary supplement tablets, capsules and two
onion extracts, with high reproducibility. The antioxidative ability of quercetin and the zinc(II)-quercetin complex was
determined using DPPH and FRAP methods. The same samples were tested for antimicrobial activity against seven laboratory
control strains of bacteria and one strain of yeast. As a result of those tests, there are no obstacles to combine quercetin and zinc
in the same supplement formulation..
AB  - И З В О Д
Флавоноиди су група полифенолних једињења широко распрострањена у биљном свету, која има значајну улогу у
људској исхрани. Флаванол кверцетин представља око 70% укупног дневног уноса флавоноида. Кверцетин гради
комплексе са бројним металним јонима и поседује значајну антиоксидативну способност. Применом методе варијација
еквимоларних односа, утврђено је да кверцетин гради комплекс са цинк (II) јоном на pH = 5,25, у стехиометријском
односу кверцетин : цинк(II)-јон = 2:1, са апсорпционим максимумом λmax=363 nm. Ова чињеница је искоришћена за
развијање једноставне, прецизне и тачне методе за одређивање кверцетина у различитим узорцима хетерогеног
састава. Предложеним индиректним спектрофотометријским поступком може се селективно одредити кверцетин у
концентрационом опсегу од 0,1 до 6,0 mg L-1, при чему је LOD = 0,03 mg L-1 a LOQ = 0,1 mgL-1. Поузданост предложеног
поступка потврђена је претходно развијеном RP-HPLC / UV методом за метанолне растворе кверцетина и капсула.
Предложена спектрофотометријска метода је успешно примењена за одређивање садржаја кверцетина у дијететским
суплементима, као и у два екстракта лука. Антиоксидативна способност кверцетина и комплекса цинк (II) - кверцетина
одређена је помоћу DPPH и FRAP метода. Такође је испитано антимикробно деловање кверцетина и одговарајућег
комплекса цинка на седам лабораторијских сојева бактерија и један сој квасца. Као резултат ових тестова, нема препрека
да се кверцетин и цинк комбинују у истој дијететској формулацији.
PB  - Faculty of Agronomy Čačak
T2  - Acta Agriculturae Serbica
T1  - Zinc-quercetin complex – from determination to bioactivity
VL  - 25
IS  - 50
SP  - 113
EP  - 120
DO  - 10.5937/AASer2050113U
ER  - 
@article{
author = "Uskoković-Marković, Snežana and Milenković, Marina and Pavun, Leposava",
year = "2020",
abstract = "A B S T R A C T
Flavonoids are a group of polyphenolic compounds widely present in the herbal world and playing an important role in the
human diet. The flavanol quercetin makes up 70% of the total daily intake of flavonoids. Quercetin is able to complex with many
metal ions, and it exhibits potent antioxidative ability. Using the equimolar solution variation method, it was confirmed that
quercetin makes a complex with the zinc(II) ion at pH 5.25, in a stoichiometric ratio quercetin:zinc(II) ion = 2:1, with the
absorption maximum λ=363 nm. This fact was used to develop a simple, precise and accurate assay to determine the content of
quercetin in various samples of heterogeneous composition. The proposed indirect spectrophotometric method can selectively
determine quercetin in concentrations ranging from 0.1 to 6.0 mgL-1, with LOD and LOQ estimated as 0.03 mgL-1 and 0.1 mgL-1,
respectively. The reliability of the proposed method was confirmed by a previously developed RP-HPLC/UV method. The
proposed method was successfully used to determine the quercetin content in dietary supplement tablets, capsules and two
onion extracts, with high reproducibility. The antioxidative ability of quercetin and the zinc(II)-quercetin complex was
determined using DPPH and FRAP methods. The same samples were tested for antimicrobial activity against seven laboratory
control strains of bacteria and one strain of yeast. As a result of those tests, there are no obstacles to combine quercetin and zinc
in the same supplement formulation.., И З В О Д
Флавоноиди су група полифенолних једињења широко распрострањена у биљном свету, која има значајну улогу у
људској исхрани. Флаванол кверцетин представља око 70% укупног дневног уноса флавоноида. Кверцетин гради
комплексе са бројним металним јонима и поседује значајну антиоксидативну способност. Применом методе варијација
еквимоларних односа, утврђено је да кверцетин гради комплекс са цинк (II) јоном на pH = 5,25, у стехиометријском
односу кверцетин : цинк(II)-јон = 2:1, са апсорпционим максимумом λmax=363 nm. Ова чињеница је искоришћена за
развијање једноставне, прецизне и тачне методе за одређивање кверцетина у различитим узорцима хетерогеног
састава. Предложеним индиректним спектрофотометријским поступком може се селективно одредити кверцетин у
концентрационом опсегу од 0,1 до 6,0 mg L-1, при чему је LOD = 0,03 mg L-1 a LOQ = 0,1 mgL-1. Поузданост предложеног
поступка потврђена је претходно развијеном RP-HPLC / UV методом за метанолне растворе кверцетина и капсула.
Предложена спектрофотометријска метода је успешно примењена за одређивање садржаја кверцетина у дијететским
суплементима, као и у два екстракта лука. Антиоксидативна способност кверцетина и комплекса цинк (II) - кверцетина
одређена је помоћу DPPH и FRAP метода. Такође је испитано антимикробно деловање кверцетина и одговарајућег
комплекса цинка на седам лабораторијских сојева бактерија и један сој квасца. Као резултат ових тестова, нема препрека
да се кверцетин и цинк комбинују у истој дијететској формулацији.",
publisher = "Faculty of Agronomy Čačak",
journal = "Acta Agriculturae Serbica",
title = "Zinc-quercetin complex – from determination to bioactivity",
volume = "25",
number = "50",
pages = "113-120",
doi = "10.5937/AASer2050113U"
}
Uskoković-Marković, S., Milenković, M.,& Pavun, L.. (2020). Zinc-quercetin complex – from determination to bioactivity. in Acta Agriculturae Serbica
Faculty of Agronomy Čačak., 25(50), 113-120.
https://doi.org/10.5937/AASer2050113U
Uskoković-Marković S, Milenković M, Pavun L. Zinc-quercetin complex – from determination to bioactivity. in Acta Agriculturae Serbica. 2020;25(50):113-120.
doi:10.5937/AASer2050113U .
Uskoković-Marković, Snežana, Milenković, Marina, Pavun, Leposava, "Zinc-quercetin complex – from determination to bioactivity" in Acta Agriculturae Serbica, 25, no. 50 (2020):113-120,
https://doi.org/10.5937/AASer2050113U . .
1