TY  - JOUR
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Antonić, Tamara
AU  - Bogavac-Stanojević, Nataša
AU  - Novović, Katarina
AU  - Spasojević-Kalimanovska, Vesna
AU  - Filipić, Brankica
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5421
AB  - Background: The pre-analytical (PA) phase is the most vulnerable phase of laboratory testing procedure, with critical procedures-collection, handling, sample transport, and time and temperature of sample storage. The aim of this study was to examine if different anticoagulants, storage conditions, and freeze-thaw cycles (FTCs) influence the concentrations of basic biochemical parameters. In parallel, the presence and the effect of sample microbiological contamination during routine laboratory work were examined.

Methods: Two plasma pools (EDTA, and sodium-fluoride/potassium oxalate plasma (NaF)) were stored at +4C˚/-20˚C. Total cholesterol (TC), glucose, triglycerides (TG), urea, total protein (TP), and albumin concentrations were measured using Ilab 300+. Sample microbiological contamination was determined by 16S rRNA sequence analysis. The experiment encompassed a 5 day-period: Day 1–fresh sample, Day 2–1st FTC, Day 3–2nd FTC, Day 4–3rd FTC, Day 5–4th FTC. The appearance of bacteria in two consecutive samples was the experiment's endpoint.

Results: During 4 FTCs there were no changes in plasma urea concentrations. Glucose was stable in EDTA+4˚C and NaF- 20˚C until the 3rd FTC (P=0.008, P=0.042, respectively). Changes in protein concentrations followed the zig-zag pattern. TG concentrations changed significantly in the EDTA-20˚C sample after 1st and 4th FTCs (P=0.022, P=0.010, respectively). In NaF samples no contamination was observed during 4 FTCs.

 

Conclusions: Urea and glucose concentrations were robust. Changes in lipid and protein concentrations after FTCs follow complex patterns. Bacterial growth was not observed in NaF plasma samples. This can promote NaF use in analytical procedures in which microbiological contamination affects the quality of analysis.
AB  - Uvod: Preanaliti~ka (PA) faza je slo`en proces koji ~ine:
prikupljanje, rukovanje, transport i skladi{tenje uzoraka, i
predstavlja najzna~ajniji izvor laboratorijskih gre{aka. Cilj
ovog istra`ivanja je bio da se ispita stabilnost osnovnih
biohemijskih parametara u zavisnosti od uslova skladi{tenja
uzoraka i broja ciklusa zamrzavanja-odmrzavanja (FTC).
Pored toga, ispitivano je prisustvo bakterijske kontaminacije
uzoraka tokom rutinskog laboratorijskog rada.
Metode: Dva »pool«-a plazme (etilendiaminotetrasir}etna
kiselina (EDTA) i natrijum-fluorid/kalijum oksalat (NaF)) su
skladi{tena na +4 ˚C/-20 ˚C. Koncentracije ukupnog
holesterola (TC), glukoze, triglicerida (TG), uree i albumina
su odre|ene kori{}enjem BioSystems reagenasa (holesterol
oksidaza/peroksidaza, glukoza oksidaza/peroksidaza,
glice rol fosfat oksidaza/peroksidaza, ureaza/salicilat, od-
nosno bromkrezol zeleno metodama, sukcesivno) na Ilab
300+ analizatoru. Bakterijska kontaminacija uzoraka je
potvr|ena 16S rRNA sekvencioniranjem. Eksperiment je
sproveden tokom 5 uzastopnih dana: 1. dan – sve` uzorak,
2. dan – 1. FTC, 3. dan –2. FTC, 4. dan – 3. FTC, 5. dan
– 4. FTC. Zavr{nu ta~ku eksperimenta predstavljala je
pojava bakterija u dva uzastopna uzorka.
Rezultati: Tokom 4 FTC koncentracije uree u plazmi se nisu
zna~ajno razlikovale. Koncentracija glukoze je bila stabilna
u EDTA +4 ˚C i NaF -20 ˚C do 3.FTC (P=0,008,
P=0,042, redom). Koncentracije TG su se zna~ajno pro-
menile u uzorku EDTA -20 ˚C nakon 1. i 4. FTC-a (P=0,022, P=0,010, redom). U uzorcima NaF plazme
nije do{lo do bakterijske kontaminacije tokom 4. FTC.
Zaklju~ak: Koncentracije uree i glukoze su bile stabilne
tokom trajanja eksperimenta. Promene u koncentracijama
lipida nakon FTC prate slo`ene obrasce. Rast bakterija nije
prime}en u uzorcima NaF plazme, te upotreba ovog anti-
koagulansa mo`e biti opravdana u analiti~kim proce -
durama podlo`nim uticaju mikrobiolo{ke kontaminacije.
PB  - Journal of Medical Biochemistry
T2  - Journal of Medical Biochemistry
T1  - The influence of various sample storage conditions and sample microbial contamination on concentrations of routine biochemical parameters
T1  - Uticaj različitih uslova čuvanja uzoraka i kontaminacije uzoraka bakterijama na koncentracije rutinskih biohemijskih parametara
VL  - 43
IS  - 1
DO  - https://doi.org/10.5937/jomb0-40360
ER  - 

@article{
author = "Gojković, Tamara and Vladimirov, Sandra and Antonić, Tamara and Bogavac-Stanojević, Nataša and Novović, Katarina and Spasojević-Kalimanovska, Vesna and Filipić, Brankica",
year = "2023",
abstract = "Background: The pre-analytical (PA) phase is the most vulnerable phase of laboratory testing procedure, with critical procedures-collection, handling, sample transport, and time and temperature of sample storage. The aim of this study was to examine if different anticoagulants, storage conditions, and freeze-thaw cycles (FTCs) influence the concentrations of basic biochemical parameters. In parallel, the presence and the effect of sample microbiological contamination during routine laboratory work were examined.

Methods: Two plasma pools (EDTA, and sodium-fluoride/potassium oxalate plasma (NaF)) were stored at +4C˚/-20˚C. Total cholesterol (TC), glucose, triglycerides (TG), urea, total protein (TP), and albumin concentrations were measured using Ilab 300+. Sample microbiological contamination was determined by 16S rRNA sequence analysis. The experiment encompassed a 5 day-period: Day 1–fresh sample, Day 2–1st FTC, Day 3–2nd FTC, Day 4–3rd FTC, Day 5–4th FTC. The appearance of bacteria in two consecutive samples was the experiment's endpoint.

Results: During 4 FTCs there were no changes in plasma urea concentrations. Glucose was stable in EDTA+4˚C and NaF- 20˚C until the 3rd FTC (P=0.008, P=0.042, respectively). Changes in protein concentrations followed the zig-zag pattern. TG concentrations changed significantly in the EDTA-20˚C sample after 1st and 4th FTCs (P=0.022, P=0.010, respectively). In NaF samples no contamination was observed during 4 FTCs.

 

Conclusions: Urea and glucose concentrations were robust. Changes in lipid and protein concentrations after FTCs follow complex patterns. Bacterial growth was not observed in NaF plasma samples. This can promote NaF use in analytical procedures in which microbiological contamination affects the quality of analysis., Uvod: Preanaliti~ka (PA) faza je slo`en proces koji ~ine:
prikupljanje, rukovanje, transport i skladi{tenje uzoraka, i
predstavlja najzna~ajniji izvor laboratorijskih gre{aka. Cilj
ovog istra`ivanja je bio da se ispita stabilnost osnovnih
biohemijskih parametara u zavisnosti od uslova skladi{tenja
uzoraka i broja ciklusa zamrzavanja-odmrzavanja (FTC).
Pored toga, ispitivano je prisustvo bakterijske kontaminacije
uzoraka tokom rutinskog laboratorijskog rada.
Metode: Dva »pool«-a plazme (etilendiaminotetrasir}etna
kiselina (EDTA) i natrijum-fluorid/kalijum oksalat (NaF)) su
skladi{tena na +4 ˚C/-20 ˚C. Koncentracije ukupnog
holesterola (TC), glukoze, triglicerida (TG), uree i albumina
su odre|ene kori{}enjem BioSystems reagenasa (holesterol
oksidaza/peroksidaza, glukoza oksidaza/peroksidaza,
glice rol fosfat oksidaza/peroksidaza, ureaza/salicilat, od-
nosno bromkrezol zeleno metodama, sukcesivno) na Ilab
300+ analizatoru. Bakterijska kontaminacija uzoraka je
potvr|ena 16S rRNA sekvencioniranjem. Eksperiment je
sproveden tokom 5 uzastopnih dana: 1. dan – sve` uzorak,
2. dan – 1. FTC, 3. dan –2. FTC, 4. dan – 3. FTC, 5. dan
– 4. FTC. Zavr{nu ta~ku eksperimenta predstavljala je
pojava bakterija u dva uzastopna uzorka.
Rezultati: Tokom 4 FTC koncentracije uree u plazmi se nisu
zna~ajno razlikovale. Koncentracija glukoze je bila stabilna
u EDTA +4 ˚C i NaF -20 ˚C do 3.FTC (P=0,008,
P=0,042, redom). Koncentracije TG su se zna~ajno pro-
menile u uzorku EDTA -20 ˚C nakon 1. i 4. FTC-a (P=0,022, P=0,010, redom). U uzorcima NaF plazme
nije do{lo do bakterijske kontaminacije tokom 4. FTC.
Zaklju~ak: Koncentracije uree i glukoze su bile stabilne
tokom trajanja eksperimenta. Promene u koncentracijama
lipida nakon FTC prate slo`ene obrasce. Rast bakterija nije
prime}en u uzorcima NaF plazme, te upotreba ovog anti-
koagulansa mo`e biti opravdana u analiti~kim proce -
durama podlo`nim uticaju mikrobiolo{ke kontaminacije.",
publisher = "Journal of Medical Biochemistry",
journal = "Journal of Medical Biochemistry",
title = "The influence of various sample storage conditions and sample microbial contamination on concentrations of routine biochemical parameters, Uticaj različitih uslova čuvanja uzoraka i kontaminacije uzoraka bakterijama na koncentracije rutinskih biohemijskih parametara",
volume = "43",
number = "1",
doi = "https://doi.org/10.5937/jomb0-40360"
}

Gojković, T., Vladimirov, S., Antonić, T., Bogavac-Stanojević, N., Novović, K., Spasojević-Kalimanovska, V.,& Filipić, B.. (2023). The influence of various sample storage conditions and sample microbial contamination on concentrations of routine biochemical parameters. in Journal of Medical Biochemistry
Journal of Medical Biochemistry., 43(1).
https://doi.org/https://doi.org/10.5937/jomb0-40360

Gojković T, Vladimirov S, Antonić T, Bogavac-Stanojević N, Novović K, Spasojević-Kalimanovska V, Filipić B. The influence of various sample storage conditions and sample microbial contamination on concentrations of routine biochemical parameters. in Journal of Medical Biochemistry. 2023;43(1).
doi:https://doi.org/10.5937/jomb0-40360 .

Gojković, Tamara, Vladimirov, Sandra, Antonić, Tamara, Bogavac-Stanojević, Nataša, Novović, Katarina, Spasojević-Kalimanovska, Vesna, Filipić, Brankica, "The influence of various sample storage conditions and sample microbial contamination on concentrations of routine biochemical parameters" in Journal of Medical Biochemistry, 43, no. 1 (2023),
https://doi.org/https://doi.org/10.5937/jomb0-40360 . .

TY  - JOUR
AU  - Antonić, Tamara
AU  - Ardalić, Daniela
AU  - Vladimirov, Sandra
AU  - Zeljković, Aleksandra
AU  - Vekić, Jelena
AU  - Mitrović, Marija
AU  - Ivanišević, Jasmina
AU  - Gojković, Tamara
AU  - Munjas, Jelena
AU  - Spasojević-Kalimanovska, Vesna
AU  - Miković, Željko
AU  - Stefanović, Aleksandra
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4957
AB  - A specific feature of dyslipidemia in pregnancy is increased high-density lipoprotein (HDL) cholesterol concentration, which is probably associated with maternal endothelium protection. However, preeclampsia is most often associated with low HDL cholesterol, and the mechanisms behind this change are scarcely explored. We aimed to investigate changes in HDL metabolism in risky pregnancies and those complicated by late-onset preeclampsia. We analyze cholesterol synthesis (cholesterol precursors: desmosterol, 7-dehydrocholesterol, and lathosterol) and absorption markers (phytosterols: campesterol and β-sitosterol) within HDL particles (NCSHDL), the activities of principal modulators of HDL cholesterol’s content, and major HDL functional proteins levels in mid and late pregnancy. On the basis of the pregnancy outcome, participants were classified into the risk group (RG) (70 women) and the preeclampsia group (PG) (20 women). HDL cholesterol was lower in PG in the second trimester compared to RG (p < 0.05) and followed by lower levels of cholesterol absorption markers (p < 0.001 for campesterolHDL and p < 0.05 for β-sitosterolHDL). Lowering of HDL cholesterol between trimesters in RG (p < 0.05) was accompanied by a decrease in HDL phytosterol content (p < 0.001), apolipoprotein A-I (apoA-I) concentration (p < 0.05), and paraoxonase 1 (PON1) (p < 0.001), lecithin–cholesterol acyltransferase (LCAT) (p < 0.05), and cholesterol ester transfer protein (CETP) activities (p < 0.05). These longitudinal changes were absent in PG. Development of late-onset preeclampsia is preceded by the appearance of lower HDL cholesterol and NCSHDL in the second trimester. We propose that reduced capacity for intestinal HDL synthesis, decreased LCAT activity, and impaired capacity for HDL-mediated cholesterol efflux could be the contributing mechanisms resulting in lower HDL cholesterol.
PB  - MDPI
T2  - International Journal of Molecular Sciences
T1  - Cholesterol Metabolic Profiling of HDL in Women with Late-Onset Preeclampsia
VL  - 24
IS  - 14
DO  - 10.3390/ijms241411357
ER  - 

@article{
author = "Antonić, Tamara and Ardalić, Daniela and Vladimirov, Sandra and Zeljković, Aleksandra and Vekić, Jelena and Mitrović, Marija and Ivanišević, Jasmina and Gojković, Tamara and Munjas, Jelena and Spasojević-Kalimanovska, Vesna and Miković, Željko and Stefanović, Aleksandra",
year = "2023",
abstract = "A specific feature of dyslipidemia in pregnancy is increased high-density lipoprotein (HDL) cholesterol concentration, which is probably associated with maternal endothelium protection. However, preeclampsia is most often associated with low HDL cholesterol, and the mechanisms behind this change are scarcely explored. We aimed to investigate changes in HDL metabolism in risky pregnancies and those complicated by late-onset preeclampsia. We analyze cholesterol synthesis (cholesterol precursors: desmosterol, 7-dehydrocholesterol, and lathosterol) and absorption markers (phytosterols: campesterol and β-sitosterol) within HDL particles (NCSHDL), the activities of principal modulators of HDL cholesterol’s content, and major HDL functional proteins levels in mid and late pregnancy. On the basis of the pregnancy outcome, participants were classified into the risk group (RG) (70 women) and the preeclampsia group (PG) (20 women). HDL cholesterol was lower in PG in the second trimester compared to RG (p < 0.05) and followed by lower levels of cholesterol absorption markers (p < 0.001 for campesterolHDL and p < 0.05 for β-sitosterolHDL). Lowering of HDL cholesterol between trimesters in RG (p < 0.05) was accompanied by a decrease in HDL phytosterol content (p < 0.001), apolipoprotein A-I (apoA-I) concentration (p < 0.05), and paraoxonase 1 (PON1) (p < 0.001), lecithin–cholesterol acyltransferase (LCAT) (p < 0.05), and cholesterol ester transfer protein (CETP) activities (p < 0.05). These longitudinal changes were absent in PG. Development of late-onset preeclampsia is preceded by the appearance of lower HDL cholesterol and NCSHDL in the second trimester. We propose that reduced capacity for intestinal HDL synthesis, decreased LCAT activity, and impaired capacity for HDL-mediated cholesterol efflux could be the contributing mechanisms resulting in lower HDL cholesterol.",
publisher = "MDPI",
journal = "International Journal of Molecular Sciences",
title = "Cholesterol Metabolic Profiling of HDL in Women with Late-Onset Preeclampsia",
volume = "24",
number = "14",
doi = "10.3390/ijms241411357"
}

Antonić, T., Ardalić, D., Vladimirov, S., Zeljković, A., Vekić, J., Mitrović, M., Ivanišević, J., Gojković, T., Munjas, J., Spasojević-Kalimanovska, V., Miković, Ž.,& Stefanović, A.. (2023). Cholesterol Metabolic Profiling of HDL in Women with Late-Onset Preeclampsia. in International Journal of Molecular Sciences
MDPI., 24(14).
https://doi.org/10.3390/ijms241411357

Antonić T, Ardalić D, Vladimirov S, Zeljković A, Vekić J, Mitrović M, Ivanišević J, Gojković T, Munjas J, Spasojević-Kalimanovska V, Miković Ž, Stefanović A. Cholesterol Metabolic Profiling of HDL in Women with Late-Onset Preeclampsia. in International Journal of Molecular Sciences. 2023;24(14).
doi:10.3390/ijms241411357 .

Antonić, Tamara, Ardalić, Daniela, Vladimirov, Sandra, Zeljković, Aleksandra, Vekić, Jelena, Mitrović, Marija, Ivanišević, Jasmina, Gojković, Tamara, Munjas, Jelena, Spasojević-Kalimanovska, Vesna, Miković, Željko, Stefanović, Aleksandra, "Cholesterol Metabolic Profiling of HDL in Women with Late-Onset Preeclampsia" in International Journal of Molecular Sciences, 24, no. 14 (2023),
https://doi.org/10.3390/ijms241411357 . .

TY  - JOUR
AU  - Ivanišević, Jasmina
AU  - Ardalić, Daniela
AU  - Zeljković, Aleksandra
AU  - Vekić, Jelena
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Antonić, Tamara
AU  - Munjas, Jelena
AU  - Stefanović, Aleksandra
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4637
AB  - The 1st trimester of pregnancy is accompanied with changes in different biochemical and
hematological parameters. Analyses scheduled to be performed in the 1st trimester are complete
blood count, blood group, Rh factor and the double test. Many experts also suggest the
determination of lipid status parameters as a routine analysis in the early pregnancy. Reliable data
about maternal and fetal health can be obtained by the assessment of the above-mentioned
parameters. They may be helpful in assessing the risk for pregnancy complication development
and/or perinatal adverse outcomes.
AB  - Prvi trimestar trudnoće praćen je promenama različitih biohemijskih i hematoloških
parametara. Analize koje se rade u 1. trimestru su kompletna krvna slika, krvna grupa, Rh faktor
i tzv. „double“ test. Mnogi stručnjaci predlažu određivanje parametara lipidnog statusa kao
rutinsku analizu u ranoj trudnoći. Procenom gore navedenih parametara mogu se dobiti pouzdani
podaci o zdravlju majke i fetusa, a mogu da posluže i za procenu rizika za razvoj komplikacija u
trudnoći i/ili perinatalnih neželjenih ishoda.
PB  - Savez farmaceutskih udruženja Srbije (SFUS)
T2  - Arhiv za farmaciju
T1  - Biochemical and hematological parameters in the  1 st  trimester of pregnancy
T1  - Biohemijski i hematološki parametri u prvom  trimestru trudnoće
VL  - 73
IS  - 1
SP  - 62
EP  - 73
DO  - 10.5937/arhfarm73-41999
ER  - 

@article{
author = "Ivanišević, Jasmina and Ardalić, Daniela and Zeljković, Aleksandra and Vekić, Jelena and Gojković, Tamara and Vladimirov, Sandra and Antonić, Tamara and Munjas, Jelena and Stefanović, Aleksandra",
year = "2023",
abstract = "The 1st trimester of pregnancy is accompanied with changes in different biochemical and
hematological parameters. Analyses scheduled to be performed in the 1st trimester are complete
blood count, blood group, Rh factor and the double test. Many experts also suggest the
determination of lipid status parameters as a routine analysis in the early pregnancy. Reliable data
about maternal and fetal health can be obtained by the assessment of the above-mentioned
parameters. They may be helpful in assessing the risk for pregnancy complication development
and/or perinatal adverse outcomes., Prvi trimestar trudnoće praćen je promenama različitih biohemijskih i hematoloških
parametara. Analize koje se rade u 1. trimestru su kompletna krvna slika, krvna grupa, Rh faktor
i tzv. „double“ test. Mnogi stručnjaci predlažu određivanje parametara lipidnog statusa kao
rutinsku analizu u ranoj trudnoći. Procenom gore navedenih parametara mogu se dobiti pouzdani
podaci o zdravlju majke i fetusa, a mogu da posluže i za procenu rizika za razvoj komplikacija u
trudnoći i/ili perinatalnih neželjenih ishoda.",
publisher = "Savez farmaceutskih udruženja Srbije (SFUS)",
journal = "Arhiv za farmaciju",
title = "Biochemical and hematological parameters in the  1 st  trimester of pregnancy, Biohemijski i hematološki parametri u prvom  trimestru trudnoće",
volume = "73",
number = "1",
pages = "62-73",
doi = "10.5937/arhfarm73-41999"
}

Ivanišević, J., Ardalić, D., Zeljković, A., Vekić, J., Gojković, T., Vladimirov, S., Antonić, T., Munjas, J.,& Stefanović, A.. (2023). Biochemical and hematological parameters in the  1 st  trimester of pregnancy. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije (SFUS)., 73(1), 62-73.
https://doi.org/10.5937/arhfarm73-41999

Ivanišević J, Ardalić D, Zeljković A, Vekić J, Gojković T, Vladimirov S, Antonić T, Munjas J, Stefanović A. Biochemical and hematological parameters in the  1 st  trimester of pregnancy. in Arhiv za farmaciju. 2023;73(1):62-73.
doi:10.5937/arhfarm73-41999 .

Ivanišević, Jasmina, Ardalić, Daniela, Zeljković, Aleksandra, Vekić, Jelena, Gojković, Tamara, Vladimirov, Sandra, Antonić, Tamara, Munjas, Jelena, Stefanović, Aleksandra, "Biochemical and hematological parameters in the  1 st  trimester of pregnancy" in Arhiv za farmaciju, 73, no. 1 (2023):62-73,
https://doi.org/10.5937/arhfarm73-41999 . .

TY  - CONF
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Zeljković, Aleksandra
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5600
AB  - Preventivne mere, rano otkrivanje i potvrda novih slučajeva infekcije, predstavljaju osnov u
sprečavanju širenja i suzbijanju ininfektivne bolesti COVID-19. Primena visoko osetljive, spe-
cifične real-time RT-PCR metode predstavlja zlatni standard u detekciji SARS-CoV-2. Brza i
pouzdana dijanoza su neophodni za efikasno praćenje bolesti, ali veliki broj lažno negativnih
slučajeva omogućio je nekontrolisanu transmisiju infekcije.
Nove metode za detekciju SARS-CoV-2 iz nazofaringealnog brisa zasnovane na principu
tečne hromatografije sa masenom spektrometrijom (HPLC-MS/MS) isključivo se koriste u
istraživačke svrhe. Hromatografski testovi omogućavaju istovremenu detekciju više različitih,
specifičnih peptidnih markera za identifikaciju SARS-CoV-2. Na ovaj način, moguće mutacije
u genskoj sekvenci virusa, lako mogu biti prevaziđene. Upotreba gasne hromatografije sa
spektrometrijom pokretljivosti jona (GC-IMS) za detekciju odabranih molekula u izdahnutom
vazduhu pacijenata sa COVID-19 može omogućiti neinvazivnu, brzu i tačnu, „point of care”
potvrdu dijagnoze bolesti.
Uprkos superiornim analitičkim performansama hromatografskih tehnika, njihova primena
u rutinskoj laboratorijskoj praksi je retka. Pored opreme, njihova primena zahteva obučeno
osoblje i „in house” procedure validacije i verifikacije metoda. Protokoli validacije hromato-
grafskih metoda se oslanjaju na preporuke date u naučnim publikacijama i različitim smer-
nicama, te su istraživački orijentisani. Najčešće korišćene su EMA, FDA i CLSI smernice za
postupke i procedure validacije metoda. Međutim, ove smernice dozvoljavaju različita tuma-
čenja i ostavljaju analitičaru da odluči koji od parametara validacije su neophodni. Različiti
preanalitički i analitički aspekti hromatografskih metoda diktiraju složenost kriterijuma vali-
dacije. Zbog toga je neophodno izdvojiti najvažnije postupke validacije hromatografskih teh-
nika (određivanje linearnosti, LOQ i LOD vrednosti, tačnosti i preciznosti metode) i primeniti
dostupnu opremu i naučna saznanja.
PB  - Udruženje farmaceuta Beograd
C3  - Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd
T1  - Izazovi primene hromatografskih tehnika u postavljanju dijagnoze SARS-CoV-2 infekcije
SP  - 15
EP  - 15
UR  - https://hdl.handle.net/21.15107/rcub_farfar_5600
ER  - 

@conference{
author = "Gojković, Tamara and Vladimirov, Sandra and Zeljković, Aleksandra and Spasojević-Kalimanovska, Vesna",
year = "2022",
abstract = "Preventivne mere, rano otkrivanje i potvrda novih slučajeva infekcije, predstavljaju osnov u
sprečavanju širenja i suzbijanju ininfektivne bolesti COVID-19. Primena visoko osetljive, spe-
cifične real-time RT-PCR metode predstavlja zlatni standard u detekciji SARS-CoV-2. Brza i
pouzdana dijanoza su neophodni za efikasno praćenje bolesti, ali veliki broj lažno negativnih
slučajeva omogućio je nekontrolisanu transmisiju infekcije.
Nove metode za detekciju SARS-CoV-2 iz nazofaringealnog brisa zasnovane na principu
tečne hromatografije sa masenom spektrometrijom (HPLC-MS/MS) isključivo se koriste u
istraživačke svrhe. Hromatografski testovi omogućavaju istovremenu detekciju više različitih,
specifičnih peptidnih markera za identifikaciju SARS-CoV-2. Na ovaj način, moguće mutacije
u genskoj sekvenci virusa, lako mogu biti prevaziđene. Upotreba gasne hromatografije sa
spektrometrijom pokretljivosti jona (GC-IMS) za detekciju odabranih molekula u izdahnutom
vazduhu pacijenata sa COVID-19 može omogućiti neinvazivnu, brzu i tačnu, „point of care”
potvrdu dijagnoze bolesti.
Uprkos superiornim analitičkim performansama hromatografskih tehnika, njihova primena
u rutinskoj laboratorijskoj praksi je retka. Pored opreme, njihova primena zahteva obučeno
osoblje i „in house” procedure validacije i verifikacije metoda. Protokoli validacije hromato-
grafskih metoda se oslanjaju na preporuke date u naučnim publikacijama i različitim smer-
nicama, te su istraživački orijentisani. Najčešće korišćene su EMA, FDA i CLSI smernice za
postupke i procedure validacije metoda. Međutim, ove smernice dozvoljavaju različita tuma-
čenja i ostavljaju analitičaru da odluči koji od parametara validacije su neophodni. Različiti
preanalitički i analitički aspekti hromatografskih metoda diktiraju složenost kriterijuma vali-
dacije. Zbog toga je neophodno izdvojiti najvažnije postupke validacije hromatografskih teh-
nika (određivanje linearnosti, LOQ i LOD vrednosti, tačnosti i preciznosti metode) i primeniti
dostupnu opremu i naučna saznanja.",
publisher = "Udruženje farmaceuta Beograd",
journal = "Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd",
title = "Izazovi primene hromatografskih tehnika u postavljanju dijagnoze SARS-CoV-2 infekcije",
pages = "15-15",
url = "https://hdl.handle.net/21.15107/rcub_farfar_5600"
}

Gojković, T., Vladimirov, S., Zeljković, A.,& Spasojević-Kalimanovska, V.. (2022). Izazovi primene hromatografskih tehnika u postavljanju dijagnoze SARS-CoV-2 infekcije. in Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd
Udruženje farmaceuta Beograd., 15-15.
https://hdl.handle.net/21.15107/rcub_farfar_5600

Gojković T, Vladimirov S, Zeljković A, Spasojević-Kalimanovska V. Izazovi primene hromatografskih tehnika u postavljanju dijagnoze SARS-CoV-2 infekcije. in Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd. 2022;:15-15.
https://hdl.handle.net/21.15107/rcub_farfar_5600 .

Gojković, Tamara, Vladimirov, Sandra, Zeljković, Aleksandra, Spasojević-Kalimanovska, Vesna, "Izazovi primene hromatografskih tehnika u postavljanju dijagnoze SARS-CoV-2 infekcije" in Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd (2022):15-15,
https://hdl.handle.net/21.15107/rcub_farfar_5600 .

TY  - CONF
AU  - Kostić, Marija
AU  - Vladimirov, Sandra
AU  - Gojković, Tamara
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5599
AB  - Uvod i cilj. Određivanje koncentracije interleukina-6 (IL-6) od velikog je značaja za pra-
ćenje toka bolesti i oporavka pacijenata od COVID-19 infekcije. Cilj ovog ispitivanja je da
se objasni uticaj koncentracije biotina kao interferencije na određivanje koncentracije IL-6
nekompetitivnom ECLIA metodom.
Metode. Korišćene su ECLIA i hemiluminiscentne metode za određivanje koncentracije
IL-6 (Roche e411 - ECLIA metoda i IMMULITE 1000 - hemiluminiscencija). Za procenu interfe-
rencije od značaja su bili anamnestički, kao i podaci o terapiji koju pacijent koristi.
Rezultati. Dobijene su značajne razlike u koncentracijama IL-6 prilikom određivanja sa
ove dve različite metode. Koncentracije IL-6 su bile višestruko niže kod ECLIA metode (<1.5
pg/mL za Roche e411-ECLIA i 8.5 pg/mL za IMMULITE 1000). Interferencija usled prisustva
egzogenog biotina u ispitivanom uzorku može uzrokovati „lažno“ negativne rezultate prilikom
određivanja ovog parametra ECLIA metodom.
Zaključak. Određivanje IL-6 imunohemijskim testovima je ograničeno mogućim interferen-
cijama. Egzogeni biotin u visokim koncenracijama značajno utiče na nivo IL-6 u serumu kada
se određivanje vrši ECLIA metodom. Preporuka je informisati pacijente o adekvatnoj pripremi
za imunohemijske analize ukoliko primenjuju oralne preparate koji sadrže biotin i time svesti
mogućnost greške pri izdavanju laboratorijskih rezultata na najmanju moguću meru
PB  - Udruženje farmaceuta Beograd
C3  - Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd
T1  - Interleukin-6: uloga u laboratorijskoj dijagnostici inflamacije i ograničenja pri određivanju
SP  - 14
EP  - 14
UR  - https://hdl.handle.net/21.15107/rcub_farfar_5599
ER  - 

@conference{
author = "Kostić, Marija and Vladimirov, Sandra and Gojković, Tamara",
year = "2022",
abstract = "Uvod i cilj. Određivanje koncentracije interleukina-6 (IL-6) od velikog je značaja za pra-
ćenje toka bolesti i oporavka pacijenata od COVID-19 infekcije. Cilj ovog ispitivanja je da
se objasni uticaj koncentracije biotina kao interferencije na određivanje koncentracije IL-6
nekompetitivnom ECLIA metodom.
Metode. Korišćene su ECLIA i hemiluminiscentne metode za određivanje koncentracije
IL-6 (Roche e411 - ECLIA metoda i IMMULITE 1000 - hemiluminiscencija). Za procenu interfe-
rencije od značaja su bili anamnestički, kao i podaci o terapiji koju pacijent koristi.
Rezultati. Dobijene su značajne razlike u koncentracijama IL-6 prilikom određivanja sa
ove dve različite metode. Koncentracije IL-6 su bile višestruko niže kod ECLIA metode (<1.5
pg/mL za Roche e411-ECLIA i 8.5 pg/mL za IMMULITE 1000). Interferencija usled prisustva
egzogenog biotina u ispitivanom uzorku može uzrokovati „lažno“ negativne rezultate prilikom
određivanja ovog parametra ECLIA metodom.
Zaključak. Određivanje IL-6 imunohemijskim testovima je ograničeno mogućim interferen-
cijama. Egzogeni biotin u visokim koncenracijama značajno utiče na nivo IL-6 u serumu kada
se određivanje vrši ECLIA metodom. Preporuka je informisati pacijente o adekvatnoj pripremi
za imunohemijske analize ukoliko primenjuju oralne preparate koji sadrže biotin i time svesti
mogućnost greške pri izdavanju laboratorijskih rezultata na najmanju moguću meru",
publisher = "Udruženje farmaceuta Beograd",
journal = "Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd",
title = "Interleukin-6: uloga u laboratorijskoj dijagnostici inflamacije i ograničenja pri određivanju",
pages = "14-14",
url = "https://hdl.handle.net/21.15107/rcub_farfar_5599"
}

Kostić, M., Vladimirov, S.,& Gojković, T.. (2022). Interleukin-6: uloga u laboratorijskoj dijagnostici inflamacije i ograničenja pri određivanju. in Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd
Udruženje farmaceuta Beograd., 14-14.
https://hdl.handle.net/21.15107/rcub_farfar_5599

Kostić M, Vladimirov S, Gojković T. Interleukin-6: uloga u laboratorijskoj dijagnostici inflamacije i ograničenja pri određivanju. in Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd. 2022;:14-14.
https://hdl.handle.net/21.15107/rcub_farfar_5599 .

Kostić, Marija, Vladimirov, Sandra, Gojković, Tamara, "Interleukin-6: uloga u laboratorijskoj dijagnostici inflamacije i ograničenja pri određivanju" in Simpozijum "Covid-19 infekcija-dijagnostički i prognostički biohemijski parametri", Program i zbornik sažetaka, 18.03.2022, Beograd (2022):14-14,
https://hdl.handle.net/21.15107/rcub_farfar_5599 .

TY  - CONF
AU  - Vladimirov, Sandra
AU  - Gojković, Tamara
AU  - Zeljković, Aleksandra
AU  - Bogavac-Stanojević, Nataša
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4359
PB  - Elsevier Inc.
C3  - Atherosclerosis
T1  - Association between cholesterol synthesis markers and biological sex in the healthy, middle-aged population
VL  - 355
SP  - E238
EP  - E238
DO  - 10.1016/j.atherosclerosis.2022.06.677
ER  - 

@conference{
author = "Vladimirov, Sandra and Gojković, Tamara and Zeljković, Aleksandra and Bogavac-Stanojević, Nataša and Spasojević-Kalimanovska, Vesna",
year = "2022",
publisher = "Elsevier Inc.",
journal = "Atherosclerosis",
title = "Association between cholesterol synthesis markers and biological sex in the healthy, middle-aged population",
volume = "355",
pages = "E238-E238",
doi = "10.1016/j.atherosclerosis.2022.06.677"
}

Vladimirov, S., Gojković, T., Zeljković, A., Bogavac-Stanojević, N.,& Spasojević-Kalimanovska, V.. (2022). Association between cholesterol synthesis markers and biological sex in the healthy, middle-aged population. in Atherosclerosis
Elsevier Inc.., 355, E238-E238.
https://doi.org/10.1016/j.atherosclerosis.2022.06.677

Vladimirov S, Gojković T, Zeljković A, Bogavac-Stanojević N, Spasojević-Kalimanovska V. Association between cholesterol synthesis markers and biological sex in the healthy, middle-aged population. in Atherosclerosis. 2022;355:E238-E238.
doi:10.1016/j.atherosclerosis.2022.06.677 .

Vladimirov, Sandra, Gojković, Tamara, Zeljković, Aleksandra, Bogavac-Stanojević, Nataša, Spasojević-Kalimanovska, Vesna, "Association between cholesterol synthesis markers and biological sex in the healthy, middle-aged population" in Atherosclerosis, 355 (2022):E238-E238,
https://doi.org/10.1016/j.atherosclerosis.2022.06.677 . .

TY  - CONF
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Kotur-Stevuljević, Jelena
AU  - Bogavac-Stanojević, Nataša
AU  - Zeljković, Aleksandra
AU  - Vekić, Jelena
AU  - Antonić, Tamara
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4358
PB  - Elsevier B.V.
C3  - Clinica Chimica Acta
T1  - Effects of monacolin K, and B1, C and K2 vitamins -Containing nutraceutical on cholesterol homeostasis re-establishment and CVD risk reduction in hypercholesterolemic subjects
VL  - 530
IS  - Supplement 1
SP  - S24
EP  - S24
DO  - 10.1016/j.cca.2022.04.343
ER  - 

@conference{
author = "Gojković, Tamara and Vladimirov, Sandra and Kotur-Stevuljević, Jelena and Bogavac-Stanojević, Nataša and Zeljković, Aleksandra and Vekić, Jelena and Antonić, Tamara and Spasojević-Kalimanovska, Vesna",
year = "2022",
publisher = "Elsevier B.V.",
journal = "Clinica Chimica Acta",
title = "Effects of monacolin K, and B1, C and K2 vitamins -Containing nutraceutical on cholesterol homeostasis re-establishment and CVD risk reduction in hypercholesterolemic subjects",
volume = "530",
number = "Supplement 1",
pages = "S24-S24",
doi = "10.1016/j.cca.2022.04.343"
}

Gojković, T., Vladimirov, S., Kotur-Stevuljević, J., Bogavac-Stanojević, N., Zeljković, A., Vekić, J., Antonić, T.,& Spasojević-Kalimanovska, V.. (2022). Effects of monacolin K, and B1, C and K2 vitamins -Containing nutraceutical on cholesterol homeostasis re-establishment and CVD risk reduction in hypercholesterolemic subjects. in Clinica Chimica Acta
Elsevier B.V.., 530(Supplement 1), S24-S24.
https://doi.org/10.1016/j.cca.2022.04.343

Gojković T, Vladimirov S, Kotur-Stevuljević J, Bogavac-Stanojević N, Zeljković A, Vekić J, Antonić T, Spasojević-Kalimanovska V. Effects of monacolin K, and B1, C and K2 vitamins -Containing nutraceutical on cholesterol homeostasis re-establishment and CVD risk reduction in hypercholesterolemic subjects. in Clinica Chimica Acta. 2022;530(Supplement 1):S24-S24.
doi:10.1016/j.cca.2022.04.343 .

Gojković, Tamara, Vladimirov, Sandra, Kotur-Stevuljević, Jelena, Bogavac-Stanojević, Nataša, Zeljković, Aleksandra, Vekić, Jelena, Antonić, Tamara, Spasojević-Kalimanovska, Vesna, "Effects of monacolin K, and B1, C and K2 vitamins -Containing nutraceutical on cholesterol homeostasis re-establishment and CVD risk reduction in hypercholesterolemic subjects" in Clinica Chimica Acta, 530, no. Supplement 1 (2022):S24-S24,
https://doi.org/10.1016/j.cca.2022.04.343 . .

TY  - JOUR
AU  - Zeljković, Aleksandra
AU  - Milojević, Ana
AU  - Vladimirov, Sandra
AU  - Zdravković, Marija
AU  - Memon, Lidija
AU  - Brajković, Milica
AU  - Gardijan, Vera
AU  - Gojković, Tamara
AU  - Stefanović, Aleksandra
AU  - Miljković-Trailović, Milica
AU  - Spasojević-Kalimanovska, Vesna
AU  - Ninić, Ana
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4322
AB  - Background and aims: Obstructive sleep apnea (OSA) is closely linked to obesity and related adverse metabolic changes, including dyslipidemia. However, it is not clear whether OSA is an independent contributing factor to dyslipidemia, or the observed association is a reflection of a concomitant presence of obesity. Additionally, dyslipidemia is usually evaluated through measurement of parameters of routine lipid status, while more precise evaluation of lipid homeostasis is rarely performed in OSA. In this study, we analyzed markers of cholesterol synthesis and absorption in patients with OSA with respect to the presence of obesity and the disease severity. Methods and results: This study enrolled 116 OSA patients. Concentrations of non-cholesterol sterols (NCS), measured by LC-MS/MS, were used as markers of cholesterol synthesis and absorption. Apnea-hypopnea index (AHI) and oxygen saturation (SaO2) were utilized as markers of OSA severity. Serum lipid status parameters were determined by routine enzymatic methods. Markers of cholesterol synthesis were increased (P = 0.005), whilst markers of cholesterol absorption decreased (P = 0.001) in obese OSA patients. Cholesterol synthesis/absorption ratio was elevated in obese subjects (P < 0.001). Concentration of cholesterol synthesis marker lathosterol was significantly higher in subjects with severe OSA (P = 0.014) and we observed a trend of decreased cholesterol absorption in these patients. AHI was revealed as an independent determinant of lathosterol concentration (P = 0.022). Conclusions: Our results suggest that the presence of obesity and severe forms of OSA is characterized by elevated endogenous cholesterol synthesis. AHI was singled out as an independent determinant of the serum level of cholesterol synthesis marker lathosterol.
PB  - Elsevier B.V.
T2  - Nutrition, Metabolism and Cardiovascular Diseases
T1  - Alterations of cholesterol synthesis and absorption in obstructive sleep apnea: Influence of obesity and disease severity
VL  - 32
IS  - 12
SP  - 2848
EP  - 2857
DO  - 10.1016/j.numecd.2022.09.006
ER  - 

@article{
author = "Zeljković, Aleksandra and Milojević, Ana and Vladimirov, Sandra and Zdravković, Marija and Memon, Lidija and Brajković, Milica and Gardijan, Vera and Gojković, Tamara and Stefanović, Aleksandra and Miljković-Trailović, Milica and Spasojević-Kalimanovska, Vesna and Ninić, Ana",
year = "2022",
abstract = "Background and aims: Obstructive sleep apnea (OSA) is closely linked to obesity and related adverse metabolic changes, including dyslipidemia. However, it is not clear whether OSA is an independent contributing factor to dyslipidemia, or the observed association is a reflection of a concomitant presence of obesity. Additionally, dyslipidemia is usually evaluated through measurement of parameters of routine lipid status, while more precise evaluation of lipid homeostasis is rarely performed in OSA. In this study, we analyzed markers of cholesterol synthesis and absorption in patients with OSA with respect to the presence of obesity and the disease severity. Methods and results: This study enrolled 116 OSA patients. Concentrations of non-cholesterol sterols (NCS), measured by LC-MS/MS, were used as markers of cholesterol synthesis and absorption. Apnea-hypopnea index (AHI) and oxygen saturation (SaO2) were utilized as markers of OSA severity. Serum lipid status parameters were determined by routine enzymatic methods. Markers of cholesterol synthesis were increased (P = 0.005), whilst markers of cholesterol absorption decreased (P = 0.001) in obese OSA patients. Cholesterol synthesis/absorption ratio was elevated in obese subjects (P < 0.001). Concentration of cholesterol synthesis marker lathosterol was significantly higher in subjects with severe OSA (P = 0.014) and we observed a trend of decreased cholesterol absorption in these patients. AHI was revealed as an independent determinant of lathosterol concentration (P = 0.022). Conclusions: Our results suggest that the presence of obesity and severe forms of OSA is characterized by elevated endogenous cholesterol synthesis. AHI was singled out as an independent determinant of the serum level of cholesterol synthesis marker lathosterol.",
publisher = "Elsevier B.V.",
journal = "Nutrition, Metabolism and Cardiovascular Diseases",
title = "Alterations of cholesterol synthesis and absorption in obstructive sleep apnea: Influence of obesity and disease severity",
volume = "32",
number = "12",
pages = "2848-2857",
doi = "10.1016/j.numecd.2022.09.006"
}

Zeljković, A., Milojević, A., Vladimirov, S., Zdravković, M., Memon, L., Brajković, M., Gardijan, V., Gojković, T., Stefanović, A., Miljković-Trailović, M., Spasojević-Kalimanovska, V.,& Ninić, A.. (2022). Alterations of cholesterol synthesis and absorption in obstructive sleep apnea: Influence of obesity and disease severity. in Nutrition, Metabolism and Cardiovascular Diseases
Elsevier B.V.., 32(12), 2848-2857.
https://doi.org/10.1016/j.numecd.2022.09.006

Zeljković A, Milojević A, Vladimirov S, Zdravković M, Memon L, Brajković M, Gardijan V, Gojković T, Stefanović A, Miljković-Trailović M, Spasojević-Kalimanovska V, Ninić A. Alterations of cholesterol synthesis and absorption in obstructive sleep apnea: Influence of obesity and disease severity. in Nutrition, Metabolism and Cardiovascular Diseases. 2022;32(12):2848-2857.
doi:10.1016/j.numecd.2022.09.006 .

Zeljković, Aleksandra, Milojević, Ana, Vladimirov, Sandra, Zdravković, Marija, Memon, Lidija, Brajković, Milica, Gardijan, Vera, Gojković, Tamara, Stefanović, Aleksandra, Miljković-Trailović, Milica, Spasojević-Kalimanovska, Vesna, Ninić, Ana, "Alterations of cholesterol synthesis and absorption in obstructive sleep apnea: Influence of obesity and disease severity" in Nutrition, Metabolism and Cardiovascular Diseases, 32, no. 12 (2022):2848-2857,
https://doi.org/10.1016/j.numecd.2022.09.006 . .

TY  - JOUR
AU  - Zeljković, Aleksandra
AU  - Ardalić, Daniela
AU  - Vekić, Jelena
AU  - Antonić, Tamara
AU  - Vladimirov, Sandra
AU  - Rizzo, Manfredi
AU  - Gojković, Tamara
AU  - Ivanišević, Jasmina
AU  - Mihajlović, Marija
AU  - Vujčić, Sanja
AU  - Cabunac, Petar
AU  - Spasojević-Kalimanovska, Vesna
AU  - Miković, Željko
AU  - Stefanović, Aleksandra
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4314
AB  - Metabolic disorders in pregnancy, particularly gestational diabetes mellitus (GDM), are associated with an increased risk for adverse pregnancy outcome and long-term cardiometabolic health of mother and child. This study analyzed changes of serum cholesterol synthesis and absorption markers during the course of high-risk pregnancies, with respect to the development of GDM. Possible associations of maternal lipid biomarkers with neonatal characteristics were also investigated. The study included 63 women with high risk for development of pregnancy complications. Size and proportions of small low-density (LDL) and high-density lipoprotein (HDL) particles were assessed across trimesters (T1–T3), as well as concentrations of cholesterol synthesis (lathosterol, desmosterol) and absorption markers (campesterol, β-sitosterol). During the study, 15 women developed GDM, while 48 had no complications (non-GDM). As compared to the non-GDM group, women with GDM had significantly higher triglycerides in each trimester, while having a lower HDL-C level in T3. In addition, they had significantly lower levels of β-sitosterol in T3 (p < 0.05). Cholesterol synthesis markers increased across trimesters in both groups. A decrease in serum β-sitosterol levels during the course of pregnancies affected by GDM was observed. The prevalence of small-sized HDL decreased in non-GDM, while in the GDM group remained unchanged across trimesters. Newborn’s size in the non-GDM group was significantly higher (p < 0.01) and inversely associated with proportions of both small, dense LDL and HDL particles (p < 0.05) in maternal plasma in T1. In conclusion, high-risk pregnancies affected by GDM are characterized by altered cholesterol absorption and HDL maturation. Advanced lipid testing may indicate disturbed lipid homeostasis in GDM.
PB  - MDPI
T2  - Metabolites
T1  - Effects of Gestational Diabetes Mellitus on Cholesterol Metabolism in Women with High-Risk Pregnancies: Possible Implications for Neonatal Outcome
VL  - 12
IS  - 10
DO  - 10.3390/metabo12100959
ER  - 

@article{
author = "Zeljković, Aleksandra and Ardalić, Daniela and Vekić, Jelena and Antonić, Tamara and Vladimirov, Sandra and Rizzo, Manfredi and Gojković, Tamara and Ivanišević, Jasmina and Mihajlović, Marija and Vujčić, Sanja and Cabunac, Petar and Spasojević-Kalimanovska, Vesna and Miković, Željko and Stefanović, Aleksandra",
year = "2022",
abstract = "Metabolic disorders in pregnancy, particularly gestational diabetes mellitus (GDM), are associated with an increased risk for adverse pregnancy outcome and long-term cardiometabolic health of mother and child. This study analyzed changes of serum cholesterol synthesis and absorption markers during the course of high-risk pregnancies, with respect to the development of GDM. Possible associations of maternal lipid biomarkers with neonatal characteristics were also investigated. The study included 63 women with high risk for development of pregnancy complications. Size and proportions of small low-density (LDL) and high-density lipoprotein (HDL) particles were assessed across trimesters (T1–T3), as well as concentrations of cholesterol synthesis (lathosterol, desmosterol) and absorption markers (campesterol, β-sitosterol). During the study, 15 women developed GDM, while 48 had no complications (non-GDM). As compared to the non-GDM group, women with GDM had significantly higher triglycerides in each trimester, while having a lower HDL-C level in T3. In addition, they had significantly lower levels of β-sitosterol in T3 (p < 0.05). Cholesterol synthesis markers increased across trimesters in both groups. A decrease in serum β-sitosterol levels during the course of pregnancies affected by GDM was observed. The prevalence of small-sized HDL decreased in non-GDM, while in the GDM group remained unchanged across trimesters. Newborn’s size in the non-GDM group was significantly higher (p < 0.01) and inversely associated with proportions of both small, dense LDL and HDL particles (p < 0.05) in maternal plasma in T1. In conclusion, high-risk pregnancies affected by GDM are characterized by altered cholesterol absorption and HDL maturation. Advanced lipid testing may indicate disturbed lipid homeostasis in GDM.",
publisher = "MDPI",
journal = "Metabolites",
title = "Effects of Gestational Diabetes Mellitus on Cholesterol Metabolism in Women with High-Risk Pregnancies: Possible Implications for Neonatal Outcome",
volume = "12",
number = "10",
doi = "10.3390/metabo12100959"
}

Zeljković, A., Ardalić, D., Vekić, J., Antonić, T., Vladimirov, S., Rizzo, M., Gojković, T., Ivanišević, J., Mihajlović, M., Vujčić, S., Cabunac, P., Spasojević-Kalimanovska, V., Miković, Ž.,& Stefanović, A.. (2022). Effects of Gestational Diabetes Mellitus on Cholesterol Metabolism in Women with High-Risk Pregnancies: Possible Implications for Neonatal Outcome. in Metabolites
MDPI., 12(10).
https://doi.org/10.3390/metabo12100959

Zeljković A, Ardalić D, Vekić J, Antonić T, Vladimirov S, Rizzo M, Gojković T, Ivanišević J, Mihajlović M, Vujčić S, Cabunac P, Spasojević-Kalimanovska V, Miković Ž, Stefanović A. Effects of Gestational Diabetes Mellitus on Cholesterol Metabolism in Women with High-Risk Pregnancies: Possible Implications for Neonatal Outcome. in Metabolites. 2022;12(10).
doi:10.3390/metabo12100959 .

Zeljković, Aleksandra, Ardalić, Daniela, Vekić, Jelena, Antonić, Tamara, Vladimirov, Sandra, Rizzo, Manfredi, Gojković, Tamara, Ivanišević, Jasmina, Mihajlović, Marija, Vujčić, Sanja, Cabunac, Petar, Spasojević-Kalimanovska, Vesna, Miković, Željko, Stefanović, Aleksandra, "Effects of Gestational Diabetes Mellitus on Cholesterol Metabolism in Women with High-Risk Pregnancies: Possible Implications for Neonatal Outcome" in Metabolites, 12, no. 10 (2022),
https://doi.org/10.3390/metabo12100959 . .

TY  - JOUR
AU  - Simachew, Yonas Mulat
AU  - Antonić, Tamara
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Mihajlović, Marija
AU  - Vujčić, Sanja
AU  - Miloševski-Lomić, Gordana
AU  - Vekić, Jelena
AU  - Zeljković, Aleksandra
AU  - Spasojević-Kalimanovska, Vesna
AU  - Peco-Antić, Amira
AU  - Paripović, Dušan
AU  - Stefanović, Aleksandra
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4195
AB  - Introduction  The aim of this study was to investigate lipoprotein particle distributions and the likelihood of achieving cholesterol homeostasis in the remission phase of nephrotic syndrome (NS) in paediatric patients. We hypothesized that lipoprotein particle distributions moved toward less atherogenic profile and that cholesterol homeostasis was achieved. Materials and methods  Thirty-three children, 2 to 9 years old with NS were recruited. Blood sampling took place both in the acute phase and during remission. Serum low-density lipoprotein particles (LDL) and high-density lipoprotein particles (HDL) were separated using non-denaturing polyacrylamide gradient gel (3-31%) electrophoresis. Serum non-cholesterols sterols (NCSs), desmosterol, lathosterol, 7-dehydrocholesterol (7-DHC), campesterol and β-sitosterol were measured by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Results  All patients had desirable serum HDL cholesterol concentrations during remission. The dominant lipoprotein diameters and LDL subclass distribution did not change significantly during follow-up. In contrast, HDL lipoprotein particle distribution shifted towards larger particles. The absolute concentration of desmosterol was significantly lower during remission (P = 0.023). β-sitosterol concentration markedly increased during remission (P = 0.005). Desmosterol/β-sitosterol (P < 0.001) and 7-DHC/β-sitosterol (P = 0.005) ratios significantly declined during disease remission. Conclusions  Favourable changes in the serum lipid profiles, HDL particle subclass distribution and cholesterol metabolism in paediatric patients with NS during remission took place. For the first time, we found that cholesterol homeostasis changed in favour of increased cholesterol absorption during disease remission. Nevertheless, complete cholesterol homeostasis was not achieved during disease remission.
PB  - Croatian Society of Medical Biochemistry and Laboratory Medicine
T2  - Biochemia Medica
T1  - Lipoproteins and cholesterol homeostasis in paediatric nephrotic syndrome patients
VL  - 32
IS  - 2
DO  - 10.11613/BM.2022.020706
ER  - 

@article{
author = "Simachew, Yonas Mulat and Antonić, Tamara and Gojković, Tamara and Vladimirov, Sandra and Mihajlović, Marija and Vujčić, Sanja and Miloševski-Lomić, Gordana and Vekić, Jelena and Zeljković, Aleksandra and Spasojević-Kalimanovska, Vesna and Peco-Antić, Amira and Paripović, Dušan and Stefanović, Aleksandra",
year = "2022",
abstract = "Introduction  The aim of this study was to investigate lipoprotein particle distributions and the likelihood of achieving cholesterol homeostasis in the remission phase of nephrotic syndrome (NS) in paediatric patients. We hypothesized that lipoprotein particle distributions moved toward less atherogenic profile and that cholesterol homeostasis was achieved. Materials and methods  Thirty-three children, 2 to 9 years old with NS were recruited. Blood sampling took place both in the acute phase and during remission. Serum low-density lipoprotein particles (LDL) and high-density lipoprotein particles (HDL) were separated using non-denaturing polyacrylamide gradient gel (3-31%) electrophoresis. Serum non-cholesterols sterols (NCSs), desmosterol, lathosterol, 7-dehydrocholesterol (7-DHC), campesterol and β-sitosterol were measured by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Results  All patients had desirable serum HDL cholesterol concentrations during remission. The dominant lipoprotein diameters and LDL subclass distribution did not change significantly during follow-up. In contrast, HDL lipoprotein particle distribution shifted towards larger particles. The absolute concentration of desmosterol was significantly lower during remission (P = 0.023). β-sitosterol concentration markedly increased during remission (P = 0.005). Desmosterol/β-sitosterol (P < 0.001) and 7-DHC/β-sitosterol (P = 0.005) ratios significantly declined during disease remission. Conclusions  Favourable changes in the serum lipid profiles, HDL particle subclass distribution and cholesterol metabolism in paediatric patients with NS during remission took place. For the first time, we found that cholesterol homeostasis changed in favour of increased cholesterol absorption during disease remission. Nevertheless, complete cholesterol homeostasis was not achieved during disease remission.",
publisher = "Croatian Society of Medical Biochemistry and Laboratory Medicine",
journal = "Biochemia Medica",
title = "Lipoproteins and cholesterol homeostasis in paediatric nephrotic syndrome patients",
volume = "32",
number = "2",
doi = "10.11613/BM.2022.020706"
}

Simachew, Y. M., Antonić, T., Gojković, T., Vladimirov, S., Mihajlović, M., Vujčić, S., Miloševski-Lomić, G., Vekić, J., Zeljković, A., Spasojević-Kalimanovska, V., Peco-Antić, A., Paripović, D.,& Stefanović, A.. (2022). Lipoproteins and cholesterol homeostasis in paediatric nephrotic syndrome patients. in Biochemia Medica
Croatian Society of Medical Biochemistry and Laboratory Medicine., 32(2).
https://doi.org/10.11613/BM.2022.020706

Simachew YM, Antonić T, Gojković T, Vladimirov S, Mihajlović M, Vujčić S, Miloševski-Lomić G, Vekić J, Zeljković A, Spasojević-Kalimanovska V, Peco-Antić A, Paripović D, Stefanović A. Lipoproteins and cholesterol homeostasis in paediatric nephrotic syndrome patients. in Biochemia Medica. 2022;32(2).
doi:10.11613/BM.2022.020706 .

Simachew, Yonas Mulat, Antonić, Tamara, Gojković, Tamara, Vladimirov, Sandra, Mihajlović, Marija, Vujčić, Sanja, Miloševski-Lomić, Gordana, Vekić, Jelena, Zeljković, Aleksandra, Spasojević-Kalimanovska, Vesna, Peco-Antić, Amira, Paripović, Dušan, Stefanović, Aleksandra, "Lipoproteins and cholesterol homeostasis in paediatric nephrotic syndrome patients" in Biochemia Medica, 32, no. 2 (2022),
https://doi.org/10.11613/BM.2022.020706 . .

TY  - JOUR
AU  - Vladimirov, Sandra
AU  - Gojković, Tamara
AU  - Zeljković, Aleksandra
AU  - Jelić-Ivanović, Zorana
AU  - Zeljković, Dejan
AU  - Antonić, Tamara
AU  - Trifunović, Bratislav
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4178
AB  - Colorectal cancer (CRC) is a highly prevalent malignancy. Previous studies suggested that cholesterol might play a signficant role in malignant transformation and proliferation. Non-cholesterol sterols (NCS), which are transported by serum lipoproteins alongside cholesterol, are regarded as cholesterol synthesis and absorption markers. Quantification of NCS in serum and HDL fraction (NCSHDL), could provide a better insight into the cholesterol metabolism. The aim of this study was to examine the status of cholesterol synthesis and cholesterol absorption markers in serum and HDL fraction and explore their interrelation in CRC patients. Current study was designed as observational, case-control study. The study included 73 CRC patients and 95 healthy subjects. NCS and NCSHDL concentrations were determined by HPLC-MS/MS. Based on NCS and NCSHDL concentrations, different cholesterol homeostasis indices were calculated. Patients had significantly lower NCS (P<0.001) and NCSHDL concentrations (P<0.001 for desmosterolHDL; P<0.05 for lathosterolHDL, P=0.001 for campesterolHDL, P<0.001 for β-sitosterolHDL). NCSHDL/NCS (P<0.005 for desmosterolHDL/desmosterol; P<0.05 for lathosterolHDL/lathosterol; P<0.001 for both β-sitosterolHDL/β-sitosterol and campesterolHDL/campesterol) and synthesis to absorption ratio (CSI/CAI) (P<0.005) were increased in CRC patients. Additionally, low serum concentrations of desmosterol (P<0.001; OR=0.329; 95%CI (0.199–0.542)) and campesterol (P<0.001; OR=0.540; 95%CI (0.424–0.687)) were independent predictors of CRC presence. Our data suggest that cholesterol homeostasis in CRC is shifted towards increased synthesis. Relative abundance of NCS in HDL particles is increased, suggesting the possible overproduction of cholesterol precursors in peripheral tissues.
PB  - Elsevier Inc.
T2  - Biochemical Pharmacology
T1  - Can non-cholesterol sterols indicate the presence of specific dysregulation of cholesterol metabolism in patients with colorectal cancer?
VL  - 196
DO  - 10.1016/j.bcp.2021.114595
ER  - 

@article{
author = "Vladimirov, Sandra and Gojković, Tamara and Zeljković, Aleksandra and Jelić-Ivanović, Zorana and Zeljković, Dejan and Antonić, Tamara and Trifunović, Bratislav and Spasojević-Kalimanovska, Vesna",
year = "2022",
abstract = "Colorectal cancer (CRC) is a highly prevalent malignancy. Previous studies suggested that cholesterol might play a signficant role in malignant transformation and proliferation. Non-cholesterol sterols (NCS), which are transported by serum lipoproteins alongside cholesterol, are regarded as cholesterol synthesis and absorption markers. Quantification of NCS in serum and HDL fraction (NCSHDL), could provide a better insight into the cholesterol metabolism. The aim of this study was to examine the status of cholesterol synthesis and cholesterol absorption markers in serum and HDL fraction and explore their interrelation in CRC patients. Current study was designed as observational, case-control study. The study included 73 CRC patients and 95 healthy subjects. NCS and NCSHDL concentrations were determined by HPLC-MS/MS. Based on NCS and NCSHDL concentrations, different cholesterol homeostasis indices were calculated. Patients had significantly lower NCS (P<0.001) and NCSHDL concentrations (P<0.001 for desmosterolHDL; P<0.05 for lathosterolHDL, P=0.001 for campesterolHDL, P<0.001 for β-sitosterolHDL). NCSHDL/NCS (P<0.005 for desmosterolHDL/desmosterol; P<0.05 for lathosterolHDL/lathosterol; P<0.001 for both β-sitosterolHDL/β-sitosterol and campesterolHDL/campesterol) and synthesis to absorption ratio (CSI/CAI) (P<0.005) were increased in CRC patients. Additionally, low serum concentrations of desmosterol (P<0.001; OR=0.329; 95%CI (0.199–0.542)) and campesterol (P<0.001; OR=0.540; 95%CI (0.424–0.687)) were independent predictors of CRC presence. Our data suggest that cholesterol homeostasis in CRC is shifted towards increased synthesis. Relative abundance of NCS in HDL particles is increased, suggesting the possible overproduction of cholesterol precursors in peripheral tissues.",
publisher = "Elsevier Inc.",
journal = "Biochemical Pharmacology",
title = "Can non-cholesterol sterols indicate the presence of specific dysregulation of cholesterol metabolism in patients with colorectal cancer?",
volume = "196",
doi = "10.1016/j.bcp.2021.114595"
}

Vladimirov, S., Gojković, T., Zeljković, A., Jelić-Ivanović, Z., Zeljković, D., Antonić, T., Trifunović, B.,& Spasojević-Kalimanovska, V.. (2022). Can non-cholesterol sterols indicate the presence of specific dysregulation of cholesterol metabolism in patients with colorectal cancer?. in Biochemical Pharmacology
Elsevier Inc.., 196.
https://doi.org/10.1016/j.bcp.2021.114595

Vladimirov S, Gojković T, Zeljković A, Jelić-Ivanović Z, Zeljković D, Antonić T, Trifunović B, Spasojević-Kalimanovska V. Can non-cholesterol sterols indicate the presence of specific dysregulation of cholesterol metabolism in patients with colorectal cancer?. in Biochemical Pharmacology. 2022;196.
doi:10.1016/j.bcp.2021.114595 .

Vladimirov, Sandra, Gojković, Tamara, Zeljković, Aleksandra, Jelić-Ivanović, Zorana, Zeljković, Dejan, Antonić, Tamara, Trifunović, Bratislav, Spasojević-Kalimanovska, Vesna, "Can non-cholesterol sterols indicate the presence of specific dysregulation of cholesterol metabolism in patients with colorectal cancer?" in Biochemical Pharmacology, 196 (2022),
https://doi.org/10.1016/j.bcp.2021.114595 . .

TY  - JOUR
AU  - Đuričić, Ivana
AU  - Gojković, Tamara
AU  - Antonijević, Biljana
AU  - Šobajić, Slađana
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4060
AB  - Background/Aim. Dietary intake of n-3 long-chain polyun-saturated fatty acids (LC-PUFA) is important in prevention and treatment of different diseases. In general population, the average intake of n-3 LC-PUFA is often significantly lower than recom-mended levels. Fish lipids are rich sources of these fatty acids, of which the most important are eicosapentaenoic (20:5 n-3, EPA) and docosahexaenoic (22:6 n-3, DHA) fatty acids. This study was designed to determine and compare fat, fatty acids and lipid qual-ity indices in 10 commercial fish species available on the Serbian market, as well as relation between their price and nutritional val-ue. Methods. Freshwater fish originated from the Danube River in the Belgrade Region, while seawater fish were mostly from the Adriatic Sea. A gas chromatography method was used to define fatty acids in 40 fish samples after lipid extraction. Cost-minimization analysis was conducted to assess the economic util-ity. Results. Seawater fish had a significantly higher value of flash lipid quality compared to the freshwater fish (p < 0.05). Value of Background/Aim. Dietary intake of n-3 long-chain polyun-saturated fatty acids (LC-PUFA) is important in prevention and treatment of different diseases. In general population, the average intake of n-3 LC-PUFA is often significantly lower than recom-mended levels. Fish lipids are rich sources of these fatty acids, of which the most important are eicosapentaenoic (20:5 n-3, EPA) and docosahexaenoic (22:6 n-3, DHA) fatty acids. This study was designed to determine and compare fat, fatty acids and lipid qual-ity indices in 10 commercial fish species available on the Serbian market, as well as relation between their price and nutritional val-ue. Methods. Freshwater fish originated from the Danube River in the Belgrade Region, while seawater fish were mostly from the Adriatic Sea. A gas chromatography method was used to define fatty acids in 40 fish samples after lipid extraction. Cost-minimization analysis was conducted to assess the economic util-ity. Results. Seawater fish had a significantly higher value of flash lipid quality compared to the freshwater fish (p < 0.05). Value of Background/Aim. Dietary intake of n-3 long-chain polyun-saturated fatty acids (LC-PUFA) is important in prevention and treatment of different diseases. In general population, the average intake of n-3 LC-PUFA is often significantly lower than recom-mended levels. Fish lipids are rich sources of these fatty acids, of which the most important are eicosapentaenoic (20:5 n-3, EPA) and docosahexaenoic (22:6 n-3, DHA) fatty acids. This study was designed to determine and compare fat, fatty acids and lipid qual-ity indices in 10 commercial fish species available on the Serbian market, as well as relation between their price and nutritional val-ue. Methods. Freshwater fish originated from the Danube River in the Belgrade Region, while seawater fish were mostly from the Adriatic Sea. A gas chromatography method was used to define fatty acids in 40 fish samples after lipid extraction. Cost-minimization analysis was conducted to assess the economic util-ity. Results. Seawater fish had a significantly higher value of flash lipid quality compared to the freshwater fish (p < 0.05). Value of hypercholesterolaemic fatty acids (OFA) for the freshwater group was 18.70 (17.40‒21.30) while the seawater group had a similar range of values 18.90 (17.55‒22.75). Hypocholesterol-aemic fatty acids (DFA) also showed similar ranges for both groups: 68.80 (66‒70.20) for freshwater and 68.40 (64.85‒73.05) for seawater group. The ratio of DHA/EPA ranged from 1.8 for sardine samples and up to 10 for tuna samples, indicating that the amount of DHA in natural samples exceeds the amount of EPA in many cases. The values of ath-erogenic (AI) and thrombogenic index (TI) were lower than 1 for all analysed samples. Conclusion. Sardine and mackerel had the highest content of n-3 LC-PUFA and presented the least expensive sources of EPA and DHA. The low values of AI and TI obtained from studied fish indicate its benefits from a health point of view.
AB  - Uvod/Cilj. Unos n-3 polinezasićenih masnih kiselina (PMK) je od velike važnosti u prevenciji i tretmanu različitih oboljen-ja. Generalno posmatrajući, prosečan unos n-3 PMK je obično značajno niži od utvrđenih preporuka. Lipidi riba sadrže masne kiseline n-3 serije od kojih su najvažnije ei-kozapentaenska (20:5 n-3, EPA) i dokozaheksaenska (20:6 n-3, DHA) masna kiselina. Cilj ove studije bio je odrediti i uporediti lipidni profil i lipidne indekse u 10 različitih vrsta riba dostupnih na tržištu Srbije. Takođe, određen je odnos cene i nutritivne vrednosti odabranih vrsta. Metode. Ispiti-vane su rečne ribe Dunava iz Beogradskog regiona, dok su morske ribe uglavnom vodile poreklo iz Jadranskog mora. Gasna hromatografija sa jonskim detektorom je korišćena za određivanje masnih kiselina u 40 uzoraka nakon lipidne ekstrakcije. Cost-minimization analiza je korišćena za procenu ekonomske koristi. Rezultati. Morske ribe su imale značajno veće vrednosti za parametar flash lipid quality u odnosu na rečne ribe (p < 0,05). Vrednosti hiperholesterolemijskih mas-nih kiselina za grupu rečnih riba [18,70 (17,40‒21,30)] bile su slične vrednostima dobijenim za morske ribe [18,90 (17,55‒22,75)]. Hipoholesterolemijske masne kiseline su takođe pokazale sličan raspon vrednosti za rečne [68.80 (66–70.20)] i morske ribe [68.40 (64.85–73.05)]. Odnos DHA/EPA kretao se od 1,8 za uzorke sardine, do 10 za uzorke tune, što potvrđuje činjenicu da DHA prevazilazi vrednosti za EPA u svim ispitivanim uzorcima. Vrednosti za aterogeni i trombogeni indeks su bile niže od 1 za sve ana-lizirane uzorke. Zaključak. Sardine i skuša su imale najveći sadržaj n-3 PMK i predstavljale su najekonomičniji izvor EPA i DHA. Niske vrednosti za aterogeni i trombogeni in-deks ukazuju na potencijalno povoljan zdravstveni efekat ispitivanih vrsta.
PB  - Belgrade : Military Medical Academy, INI
T2  - Vojnosanitetski pregled
T1  - Lipid profile and health benefit of commonly consumed fresh water and sea water fish species in the population of Serbia
T1  - Lipidni profil i zdravstveni značaj najčešće konzumiranih rečnih i morskih riba u populaciji Srbije
VL  - 79
IS  - 1
SP  - 8
EP  - 16
DO  - 10.2298/VSP200212054D
ER  - 

@article{
author = "Đuričić, Ivana and Gojković, Tamara and Antonijević, Biljana and Šobajić, Slađana",
year = "2022",
abstract = "Background/Aim. Dietary intake of n-3 long-chain polyun-saturated fatty acids (LC-PUFA) is important in prevention and treatment of different diseases. In general population, the average intake of n-3 LC-PUFA is often significantly lower than recom-mended levels. Fish lipids are rich sources of these fatty acids, of which the most important are eicosapentaenoic (20:5 n-3, EPA) and docosahexaenoic (22:6 n-3, DHA) fatty acids. This study was designed to determine and compare fat, fatty acids and lipid qual-ity indices in 10 commercial fish species available on the Serbian market, as well as relation between their price and nutritional val-ue. Methods. Freshwater fish originated from the Danube River in the Belgrade Region, while seawater fish were mostly from the Adriatic Sea. A gas chromatography method was used to define fatty acids in 40 fish samples after lipid extraction. Cost-minimization analysis was conducted to assess the economic util-ity. Results. Seawater fish had a significantly higher value of flash lipid quality compared to the freshwater fish (p < 0.05). Value of Background/Aim. Dietary intake of n-3 long-chain polyun-saturated fatty acids (LC-PUFA) is important in prevention and treatment of different diseases. In general population, the average intake of n-3 LC-PUFA is often significantly lower than recom-mended levels. Fish lipids are rich sources of these fatty acids, of which the most important are eicosapentaenoic (20:5 n-3, EPA) and docosahexaenoic (22:6 n-3, DHA) fatty acids. This study was designed to determine and compare fat, fatty acids and lipid qual-ity indices in 10 commercial fish species available on the Serbian market, as well as relation between their price and nutritional val-ue. Methods. Freshwater fish originated from the Danube River in the Belgrade Region, while seawater fish were mostly from the Adriatic Sea. A gas chromatography method was used to define fatty acids in 40 fish samples after lipid extraction. Cost-minimization analysis was conducted to assess the economic util-ity. Results. Seawater fish had a significantly higher value of flash lipid quality compared to the freshwater fish (p < 0.05). Value of Background/Aim. Dietary intake of n-3 long-chain polyun-saturated fatty acids (LC-PUFA) is important in prevention and treatment of different diseases. In general population, the average intake of n-3 LC-PUFA is often significantly lower than recom-mended levels. Fish lipids are rich sources of these fatty acids, of which the most important are eicosapentaenoic (20:5 n-3, EPA) and docosahexaenoic (22:6 n-3, DHA) fatty acids. This study was designed to determine and compare fat, fatty acids and lipid qual-ity indices in 10 commercial fish species available on the Serbian market, as well as relation between their price and nutritional val-ue. Methods. Freshwater fish originated from the Danube River in the Belgrade Region, while seawater fish were mostly from the Adriatic Sea. A gas chromatography method was used to define fatty acids in 40 fish samples after lipid extraction. Cost-minimization analysis was conducted to assess the economic util-ity. Results. Seawater fish had a significantly higher value of flash lipid quality compared to the freshwater fish (p < 0.05). Value of hypercholesterolaemic fatty acids (OFA) for the freshwater group was 18.70 (17.40‒21.30) while the seawater group had a similar range of values 18.90 (17.55‒22.75). Hypocholesterol-aemic fatty acids (DFA) also showed similar ranges for both groups: 68.80 (66‒70.20) for freshwater and 68.40 (64.85‒73.05) for seawater group. The ratio of DHA/EPA ranged from 1.8 for sardine samples and up to 10 for tuna samples, indicating that the amount of DHA in natural samples exceeds the amount of EPA in many cases. The values of ath-erogenic (AI) and thrombogenic index (TI) were lower than 1 for all analysed samples. Conclusion. Sardine and mackerel had the highest content of n-3 LC-PUFA and presented the least expensive sources of EPA and DHA. The low values of AI and TI obtained from studied fish indicate its benefits from a health point of view., Uvod/Cilj. Unos n-3 polinezasićenih masnih kiselina (PMK) je od velike važnosti u prevenciji i tretmanu različitih oboljen-ja. Generalno posmatrajući, prosečan unos n-3 PMK je obično značajno niži od utvrđenih preporuka. Lipidi riba sadrže masne kiseline n-3 serije od kojih su najvažnije ei-kozapentaenska (20:5 n-3, EPA) i dokozaheksaenska (20:6 n-3, DHA) masna kiselina. Cilj ove studije bio je odrediti i uporediti lipidni profil i lipidne indekse u 10 različitih vrsta riba dostupnih na tržištu Srbije. Takođe, određen je odnos cene i nutritivne vrednosti odabranih vrsta. Metode. Ispiti-vane su rečne ribe Dunava iz Beogradskog regiona, dok su morske ribe uglavnom vodile poreklo iz Jadranskog mora. Gasna hromatografija sa jonskim detektorom je korišćena za određivanje masnih kiselina u 40 uzoraka nakon lipidne ekstrakcije. Cost-minimization analiza je korišćena za procenu ekonomske koristi. Rezultati. Morske ribe su imale značajno veće vrednosti za parametar flash lipid quality u odnosu na rečne ribe (p < 0,05). Vrednosti hiperholesterolemijskih mas-nih kiselina za grupu rečnih riba [18,70 (17,40‒21,30)] bile su slične vrednostima dobijenim za morske ribe [18,90 (17,55‒22,75)]. Hipoholesterolemijske masne kiseline su takođe pokazale sličan raspon vrednosti za rečne [68.80 (66–70.20)] i morske ribe [68.40 (64.85–73.05)]. Odnos DHA/EPA kretao se od 1,8 za uzorke sardine, do 10 za uzorke tune, što potvrđuje činjenicu da DHA prevazilazi vrednosti za EPA u svim ispitivanim uzorcima. Vrednosti za aterogeni i trombogeni indeks su bile niže od 1 za sve ana-lizirane uzorke. Zaključak. Sardine i skuša su imale najveći sadržaj n-3 PMK i predstavljale su najekonomičniji izvor EPA i DHA. Niske vrednosti za aterogeni i trombogeni in-deks ukazuju na potencijalno povoljan zdravstveni efekat ispitivanih vrsta.",
publisher = "Belgrade : Military Medical Academy, INI",
journal = "Vojnosanitetski pregled",
title = "Lipid profile and health benefit of commonly consumed fresh water and sea water fish species in the population of Serbia, Lipidni profil i zdravstveni značaj najčešće konzumiranih rečnih i morskih riba u populaciji Srbije",
volume = "79",
number = "1",
pages = "8-16",
doi = "10.2298/VSP200212054D"
}

Đuričić, I., Gojković, T., Antonijević, B.,& Šobajić, S.. (2022). Lipid profile and health benefit of commonly consumed fresh water and sea water fish species in the population of Serbia. in Vojnosanitetski pregled
Belgrade : Military Medical Academy, INI., 79(1), 8-16.
https://doi.org/10.2298/VSP200212054D

Đuričić I, Gojković T, Antonijević B, Šobajić S. Lipid profile and health benefit of commonly consumed fresh water and sea water fish species in the population of Serbia. in Vojnosanitetski pregled. 2022;79(1):8-16.
doi:10.2298/VSP200212054D .

Đuričić, Ivana, Gojković, Tamara, Antonijević, Biljana, Šobajić, Slađana, "Lipid profile and health benefit of commonly consumed fresh water and sea water fish species in the population of Serbia" in Vojnosanitetski pregled, 79, no. 1 (2022):8-16,
https://doi.org/10.2298/VSP200212054D . .

TY  - CONF
AU  - Zeljković, Aleksandra
AU  - Vekić, Jelena
AU  - Ardalić, Daniela
AU  - Spasojević-Kalimanovska, Vesna
AU  - Ivanišević, Jasmina
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Mihajlović, Marija
AU  - Antonić, Tamara
AU  - Vujčić, Sanja
AU  - Miković, Željko
AU  - Stefanović, Aleksandra
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4487
AB  - Insulin resistance, hyperlipidemia, oxidative stress and low-grade inflammation are
mechanisms underlying endothelial dysfunction and atherosclerosis development in non-
pregnant state, but in pregnancy they are adaptive mechanisms responsible for fetal
development without health risks for mothers. A special feature of lipids profile in pregnancy
is increase in high density lipoprotein (HDL) cholesterol concentration. Protective role of
HDL particles resides on its complex composition that goes beyond its cholesterol
concentration and exhibits vasodilatory, antioxidant, anti-inflammatory and
antithrombogenic effects. Even the importance of HDL functionality in pathogenesis of
cardiovascular disease has been investigated and confirmed its role in persevering metabolic
health in pregnancy are almost unexplored. Project "HDL research to improve pregnancy
outcome" investigate the pattern of HDL particle distribution and functionality (HDL-ome)
with different pregnancy outcomes. With the sophisticated analytical methods we determine
HDL-ome in uncomplicated and high-risk pregnancies. We mark the HDL-ome component
with a different pattern of change during high-risk pregnancies and test their potential for
pregnancy complications risk assessment. In this this research we investigate molecular
mechanisms crucial for HDL remodelling during pregnancy and possible associations
between maternal metabolic health during pregnancy and maternal and child health in the
future. Such comprehensive approach will provide a better insight into HDL role in maternal
metabolic health during pregnancy and will open a door for further research in this area.
AB  - Insulinska rezistencija, hiperlipidemija, oksidativni stress i stanje inflamacije niskog
stepena, koji se u negravidnom stanju povezuju sa razvojem endotelne disfunkcije i
aterosklerozom, u trudnoći predstavljaju adaptivne mehanizme koji omogućavaju pravilan
rast i razvoj fetusa, a ne ugrožavaju zdravlje trudnice. Specifičnost dislipidemije koja se
razvija u trudnoći, a koja nije karakteristična za dislipidemiju u negravidnim stanjima, jeste
porast koncentracije holesterola u lipoproteinskim česticama visoke gustine (high density
lipoprotein, HDL). Međutim, HDL je mnogo više od sadržaja holesterola u njemu. Ovaj
lipoprotein ima izuzetno kompleksnu i heterogenu strukturu i ispoljava vazodilatatorne,
antioksidativne, antiinflamatorne i antitrombogene efekte. Iako je gubitak funkcionalnosti
ovog lipoproteina u patogenezi kardiovaskularnih bolesti detaljno ispitan i potvrđen,
njegova uloga u očuvanju metaboličkog zdravlja u trudnoći još uvek nije rasvetljena. Projekat
"Ispitivanje HDL-metaboloma u cilju unapređenja ishoda trudnoće" bavi se istraživanjem
povezanosti obrazaca promena strukture i funkcionalnosti HDL (HDL-om) sa različitim
ishodima trudnoće. Sofisticiranim analitičkim metodama, određuje se HDL-om u
visokorizičnim trudnoćama, kao i trudnoćama bez komplikacija. Izdvajaju se komponente
HDL-oma koje imaju drugačiji obrazac promene tokom visoko rizičnih trudnoća i ispituje se
njihov značaj u proceni rizika za razvoj komplikacija u trudnoći. Poseban aspekt ovog
istraživanja odnosi se na ispitivanje molekularnih mehanizama ključnih za remodelovanje
HDL tokom trudnoće, kao i potencijalne povezanosti metaboličkog statusa majke tokom
trudnoće sa budućim kardiometaboličkim zdravljem majke i deteta. Ovako opsežno
ispitivanje trebalo bi da pruži jasniji prikaz uloge HDL u očuvanju metaboličkog zdravlja
tokom trudnoće i, kao takvo, predstavljaće polaznu tačku za dalja istraživanja u ovoj oblasti.
PB  - Savez farmaceutskih udruženja Srbije (SFUS)
C3  - Arhiv za farmaciju
T1  - The importance of metabolic health improvement in pregnancy: Project "HDL structure and function research in pregnancy"
T1  - Značaj očuvanja metaboličkog zdravlja u trudnoći: projekat "ispitivanje strukture i funkcije hdl‐a u trudnoći"
VL  - 72
IS  - 4 suplement
SP  - S174
EP  - S175
UR  - https://hdl.handle.net/21.15107/rcub_farfar_4487
ER  - 

@conference{
author = "Zeljković, Aleksandra and Vekić, Jelena and Ardalić, Daniela and Spasojević-Kalimanovska, Vesna and Ivanišević, Jasmina and Gojković, Tamara and Vladimirov, Sandra and Mihajlović, Marija and Antonić, Tamara and Vujčić, Sanja and Miković, Željko and Stefanović, Aleksandra",
year = "2022",
abstract = "Insulin resistance, hyperlipidemia, oxidative stress and low-grade inflammation are
mechanisms underlying endothelial dysfunction and atherosclerosis development in non-
pregnant state, but in pregnancy they are adaptive mechanisms responsible for fetal
development without health risks for mothers. A special feature of lipids profile in pregnancy
is increase in high density lipoprotein (HDL) cholesterol concentration. Protective role of
HDL particles resides on its complex composition that goes beyond its cholesterol
concentration and exhibits vasodilatory, antioxidant, anti-inflammatory and
antithrombogenic effects. Even the importance of HDL functionality in pathogenesis of
cardiovascular disease has been investigated and confirmed its role in persevering metabolic
health in pregnancy are almost unexplored. Project "HDL research to improve pregnancy
outcome" investigate the pattern of HDL particle distribution and functionality (HDL-ome)
with different pregnancy outcomes. With the sophisticated analytical methods we determine
HDL-ome in uncomplicated and high-risk pregnancies. We mark the HDL-ome component
with a different pattern of change during high-risk pregnancies and test their potential for
pregnancy complications risk assessment. In this this research we investigate molecular
mechanisms crucial for HDL remodelling during pregnancy and possible associations
between maternal metabolic health during pregnancy and maternal and child health in the
future. Such comprehensive approach will provide a better insight into HDL role in maternal
metabolic health during pregnancy and will open a door for further research in this area., Insulinska rezistencija, hiperlipidemija, oksidativni stress i stanje inflamacije niskog
stepena, koji se u negravidnom stanju povezuju sa razvojem endotelne disfunkcije i
aterosklerozom, u trudnoći predstavljaju adaptivne mehanizme koji omogućavaju pravilan
rast i razvoj fetusa, a ne ugrožavaju zdravlje trudnice. Specifičnost dislipidemije koja se
razvija u trudnoći, a koja nije karakteristična za dislipidemiju u negravidnim stanjima, jeste
porast koncentracije holesterola u lipoproteinskim česticama visoke gustine (high density
lipoprotein, HDL). Međutim, HDL je mnogo više od sadržaja holesterola u njemu. Ovaj
lipoprotein ima izuzetno kompleksnu i heterogenu strukturu i ispoljava vazodilatatorne,
antioksidativne, antiinflamatorne i antitrombogene efekte. Iako je gubitak funkcionalnosti
ovog lipoproteina u patogenezi kardiovaskularnih bolesti detaljno ispitan i potvrđen,
njegova uloga u očuvanju metaboličkog zdravlja u trudnoći još uvek nije rasvetljena. Projekat
"Ispitivanje HDL-metaboloma u cilju unapređenja ishoda trudnoće" bavi se istraživanjem
povezanosti obrazaca promena strukture i funkcionalnosti HDL (HDL-om) sa različitim
ishodima trudnoće. Sofisticiranim analitičkim metodama, određuje se HDL-om u
visokorizičnim trudnoćama, kao i trudnoćama bez komplikacija. Izdvajaju se komponente
HDL-oma koje imaju drugačiji obrazac promene tokom visoko rizičnih trudnoća i ispituje se
njihov značaj u proceni rizika za razvoj komplikacija u trudnoći. Poseban aspekt ovog
istraživanja odnosi se na ispitivanje molekularnih mehanizama ključnih za remodelovanje
HDL tokom trudnoće, kao i potencijalne povezanosti metaboličkog statusa majke tokom
trudnoće sa budućim kardiometaboličkim zdravljem majke i deteta. Ovako opsežno
ispitivanje trebalo bi da pruži jasniji prikaz uloge HDL u očuvanju metaboličkog zdravlja
tokom trudnoće i, kao takvo, predstavljaće polaznu tačku za dalja istraživanja u ovoj oblasti.",
publisher = "Savez farmaceutskih udruženja Srbije (SFUS)",
journal = "Arhiv za farmaciju",
title = "The importance of metabolic health improvement in pregnancy: Project "HDL structure and function research in pregnancy", Značaj očuvanja metaboličkog zdravlja u trudnoći: projekat "ispitivanje strukture i funkcije hdl‐a u trudnoći"",
volume = "72",
number = "4 suplement",
pages = "S174-S175",
url = "https://hdl.handle.net/21.15107/rcub_farfar_4487"
}

Zeljković, A., Vekić, J., Ardalić, D., Spasojević-Kalimanovska, V., Ivanišević, J., Gojković, T., Vladimirov, S., Mihajlović, M., Antonić, T., Vujčić, S., Miković, Ž.,& Stefanović, A.. (2022). The importance of metabolic health improvement in pregnancy: Project "HDL structure and function research in pregnancy". in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije (SFUS)., 72(4 suplement), S174-S175.
https://hdl.handle.net/21.15107/rcub_farfar_4487

Zeljković A, Vekić J, Ardalić D, Spasojević-Kalimanovska V, Ivanišević J, Gojković T, Vladimirov S, Mihajlović M, Antonić T, Vujčić S, Miković Ž, Stefanović A. The importance of metabolic health improvement in pregnancy: Project "HDL structure and function research in pregnancy". in Arhiv za farmaciju. 2022;72(4 suplement):S174-S175.
https://hdl.handle.net/21.15107/rcub_farfar_4487 .

Zeljković, Aleksandra, Vekić, Jelena, Ardalić, Daniela, Spasojević-Kalimanovska, Vesna, Ivanišević, Jasmina, Gojković, Tamara, Vladimirov, Sandra, Mihajlović, Marija, Antonić, Tamara, Vujčić, Sanja, Miković, Željko, Stefanović, Aleksandra, "The importance of metabolic health improvement in pregnancy: Project "HDL structure and function research in pregnancy"" in Arhiv za farmaciju, 72, no. 4 suplement (2022):S174-S175,
https://hdl.handle.net/21.15107/rcub_farfar_4487 .

TY  - JOUR
AU  - Zeljković, Aleksandra
AU  - Vladimirov, Sandra
AU  - Gojković, Tamara
AU  - Vekić, Jelena
AU  - Mihajlović, Marija
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4243
AB  - Vitamin D deficiency is among important healthcare challenges today. Traditionally, vitamin D status is assessed through determination of 25-hydroxy metabolite (25(OH)D), but novel data point to 24,25(OH) 2 D and 25(OH)D/24,25(OH) 2 D ratio (VDMR) as promising biomarkers. It is widely accepted that the biological role of vitamin D exceeds its well-known contribution to bone turnover. However, its effects on overall energy metabolism and lipid status alterations are not completely understood. In this study, we analyzed the relationship of vitamin D status assessed as concentrations of 25(OH)D3 and 24,25(OH) 2 D3 determined by liquid chromatography-tandem mass spectrometry, as well as VDMR with advanced lipid status parameters. Vitamin D status biomarkers, routine parameters of lipid status and size and distribution of lipoprotein subclasses were determined in 89 healthy adults (35 with adequate vitamin D status and 54 with vitamin D deficiency). Our results indicated a preponderance of pro- atherogenic small, dense LDL particles (sdLDL) in vitamin D deficient subjects. Both 25(OH)D and 24,25(OH) 2 D were associated with a relative proportion of sdLDL (B: -0.410; SE: 0.154; P=0.010; and B: -2.041; SE: 0.969; P=0.039, respectively). Positive correlation was found for VDMR and relative proportion of HDL 3a particles (ρ=0.251; P=0.024). VDMR value was decreased in subjects with vitamin D deficiency (P=0.001), thus implying its usefulness as a biomarker. A thorough investigation of novel vitamin D biomarkers and advanced lipid status parameters can be useful in the estimation of individual risk for the development of cardiometabolic alterations.
AB  - Deficijencija vitamina D je jedan od značajnih izazova za zdravstvene sisteme današnjice. Tradicionalno, status vitamina D se procenjuje na osnovu određivanja koncentracije njegovog 25- hidroksi metabolita (25(OH)D), ali novi podaci ukazuju na potencijalni značaj 24,25(OH) 2D i odnosa 25(OH)D/24,25(OH) 2 D (VDMR). Danas je široko prihvaćeno da biološka uloga vitamina D uveliko prevazilazi njegove efekte na koštani promet. Međutim, još uvek nije u potpunosti jasan uticaj vitamina D na energetski metabolizam i izmene lipidnog statusa. U ovom istraživanju ispitivali smo povezanost između statusa vitamina D, procenjenog na osnovu nivoa 25(OH)D3 i 24,25(OH) 2 D3 koji su određeni metodom tečne hromatografije – tandem masene spektrometrije, te VDMR sa standardnim i novim parametrima lipidnog statusa. Ispitivani analiti određeni su kod 89 zdravih odraslih osoba. Naši rezultati ukazuju na povećan udeo malih gustih LDL čestica (sdLDL) kod osoba sa deficijencijom vitamina D. Koncentracije 25(OH)D i 24,25(OH) 2 D su bile nezavisno povezane sa relativnim udelom sdLDL (B: -0,410; SE: 0,154; P=0,010; i B: -2,041; SE: 0,969; P=0,039, redom). Uočena je pozitivna korelacija između VDMR i relativnog udela HDL 3a (ρ=0,251; P=0,024). VDMR je snižen kod osoba sa deficijencijom vitamina D (P=0,001), što implicira njegov značaj kao potencijalnog biomarkera. Detaljno ispitivanje novih biomarkera statusa vitamina D i parametara lipidnog profila može biti korisno u proceni individualnog rizika za razvoj kardiometaboličkih poremećaja.
PB  - Pharmaceutical Association of Serbia
T2  - Arhiv za farmaciju
T1  - Biomarkers of vitamin D status in healthy adults: associations with serum lipid parameters – a pilot study
T1  - 273 Biomarkeri statusa vitamina D kod zdravih odraslih osoba: povezanost sa serumskim lipidnim parametrima – pilot studija
VL  - 72
IS  - 2
SP  - 260
EP  - 273
DO  - 10.5937/arhfarm72-36020
ER  - 

@article{
author = "Zeljković, Aleksandra and Vladimirov, Sandra and Gojković, Tamara and Vekić, Jelena and Mihajlović, Marija and Spasojević-Kalimanovska, Vesna",
year = "2022",
abstract = "Vitamin D deficiency is among important healthcare challenges today. Traditionally, vitamin D status is assessed through determination of 25-hydroxy metabolite (25(OH)D), but novel data point to 24,25(OH) 2 D and 25(OH)D/24,25(OH) 2 D ratio (VDMR) as promising biomarkers. It is widely accepted that the biological role of vitamin D exceeds its well-known contribution to bone turnover. However, its effects on overall energy metabolism and lipid status alterations are not completely understood. In this study, we analyzed the relationship of vitamin D status assessed as concentrations of 25(OH)D3 and 24,25(OH) 2 D3 determined by liquid chromatography-tandem mass spectrometry, as well as VDMR with advanced lipid status parameters. Vitamin D status biomarkers, routine parameters of lipid status and size and distribution of lipoprotein subclasses were determined in 89 healthy adults (35 with adequate vitamin D status and 54 with vitamin D deficiency). Our results indicated a preponderance of pro- atherogenic small, dense LDL particles (sdLDL) in vitamin D deficient subjects. Both 25(OH)D and 24,25(OH) 2 D were associated with a relative proportion of sdLDL (B: -0.410; SE: 0.154; P=0.010; and B: -2.041; SE: 0.969; P=0.039, respectively). Positive correlation was found for VDMR and relative proportion of HDL 3a particles (ρ=0.251; P=0.024). VDMR value was decreased in subjects with vitamin D deficiency (P=0.001), thus implying its usefulness as a biomarker. A thorough investigation of novel vitamin D biomarkers and advanced lipid status parameters can be useful in the estimation of individual risk for the development of cardiometabolic alterations., Deficijencija vitamina D je jedan od značajnih izazova za zdravstvene sisteme današnjice. Tradicionalno, status vitamina D se procenjuje na osnovu određivanja koncentracije njegovog 25- hidroksi metabolita (25(OH)D), ali novi podaci ukazuju na potencijalni značaj 24,25(OH) 2D i odnosa 25(OH)D/24,25(OH) 2 D (VDMR). Danas je široko prihvaćeno da biološka uloga vitamina D uveliko prevazilazi njegove efekte na koštani promet. Međutim, još uvek nije u potpunosti jasan uticaj vitamina D na energetski metabolizam i izmene lipidnog statusa. U ovom istraživanju ispitivali smo povezanost između statusa vitamina D, procenjenog na osnovu nivoa 25(OH)D3 i 24,25(OH) 2 D3 koji su određeni metodom tečne hromatografije – tandem masene spektrometrije, te VDMR sa standardnim i novim parametrima lipidnog statusa. Ispitivani analiti određeni su kod 89 zdravih odraslih osoba. Naši rezultati ukazuju na povećan udeo malih gustih LDL čestica (sdLDL) kod osoba sa deficijencijom vitamina D. Koncentracije 25(OH)D i 24,25(OH) 2 D su bile nezavisno povezane sa relativnim udelom sdLDL (B: -0,410; SE: 0,154; P=0,010; i B: -2,041; SE: 0,969; P=0,039, redom). Uočena je pozitivna korelacija između VDMR i relativnog udela HDL 3a (ρ=0,251; P=0,024). VDMR je snižen kod osoba sa deficijencijom vitamina D (P=0,001), što implicira njegov značaj kao potencijalnog biomarkera. Detaljno ispitivanje novih biomarkera statusa vitamina D i parametara lipidnog profila može biti korisno u proceni individualnog rizika za razvoj kardiometaboličkih poremećaja.",
publisher = "Pharmaceutical Association of Serbia",
journal = "Arhiv za farmaciju",
title = "Biomarkers of vitamin D status in healthy adults: associations with serum lipid parameters – a pilot study, 273 Biomarkeri statusa vitamina D kod zdravih odraslih osoba: povezanost sa serumskim lipidnim parametrima – pilot studija",
volume = "72",
number = "2",
pages = "260-273",
doi = "10.5937/arhfarm72-36020"
}

Zeljković, A., Vladimirov, S., Gojković, T., Vekić, J., Mihajlović, M.,& Spasojević-Kalimanovska, V.. (2022). Biomarkers of vitamin D status in healthy adults: associations with serum lipid parameters – a pilot study. in Arhiv za farmaciju
Pharmaceutical Association of Serbia., 72(2), 260-273.
https://doi.org/10.5937/arhfarm72-36020

Zeljković A, Vladimirov S, Gojković T, Vekić J, Mihajlović M, Spasojević-Kalimanovska V. Biomarkers of vitamin D status in healthy adults: associations with serum lipid parameters – a pilot study. in Arhiv za farmaciju. 2022;72(2):260-273.
doi:10.5937/arhfarm72-36020 .

Zeljković, Aleksandra, Vladimirov, Sandra, Gojković, Tamara, Vekić, Jelena, Mihajlović, Marija, Spasojević-Kalimanovska, Vesna, "Biomarkers of vitamin D status in healthy adults: associations with serum lipid parameters – a pilot study" in Arhiv za farmaciju, 72, no. 2 (2022):260-273,
https://doi.org/10.5937/arhfarm72-36020 . .

TY  - JOUR
AU  - Zeljković, Aleksandra
AU  - Vekić, Jelena
AU  - Mihajlović, Marija
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Zeljković, Dejan
AU  - Spasojević-Kalimanovska, Vesna
AU  - Trifunović, Bratislav
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3813
AB  - Colorectal cancer (CRC) is a highly prevalent malignancy with multifactorial etiology,which includes metabolic alterations as contributors to disease development. Studies have shownthat lipid status disorders are involved in colorectal carcinogenesis. In line with this, previous studieshave also suggested that the serum high-density lipoprotein cholesterol (HDL-C) level decreases inpatients with CRC, but more recently, the focus of investigations has shifted toward the explorationof qualitative properties of HDL in this malignancy. Herein, a comprehensive overview of availableevidences regarding the putative role of HDL in CRC will be presented. We will analyze existingfindings regarding alterations of HDL-C levels but also HDL particle structure and distribution inCRC. In addition, changes in HDL functionality in this malignancy will be discussed.  Moreover,we will focus on the genetic regulation of HDL metabolism, as well as the involvement of HDL indisturbances of cholesterol trafficking in CRC. Finally, possible therapeutic implications related toHDL will be presented. Given the available evidence, future studies are needed to resolve all raisedissues concerning the suggested protective role of HDL in CRC, its presumed function as a biomarker,and eventual therapeutic approaches based on HDL.
PB  - MDPI AG
T2  - International Journal of Molecular Sciences
T1  - Revealing the role of high-density lipoprotein in colorectal cancer
VL  - 22
IS  - 7
DO  - 10.3390/ijms22073352
ER  - 

@article{
author = "Zeljković, Aleksandra and Vekić, Jelena and Mihajlović, Marija and Gojković, Tamara and Vladimirov, Sandra and Zeljković, Dejan and Spasojević-Kalimanovska, Vesna and Trifunović, Bratislav",
year = "2021",
abstract = "Colorectal cancer (CRC) is a highly prevalent malignancy with multifactorial etiology,which includes metabolic alterations as contributors to disease development. Studies have shownthat lipid status disorders are involved in colorectal carcinogenesis. In line with this, previous studieshave also suggested that the serum high-density lipoprotein cholesterol (HDL-C) level decreases inpatients with CRC, but more recently, the focus of investigations has shifted toward the explorationof qualitative properties of HDL in this malignancy. Herein, a comprehensive overview of availableevidences regarding the putative role of HDL in CRC will be presented. We will analyze existingfindings regarding alterations of HDL-C levels but also HDL particle structure and distribution inCRC. In addition, changes in HDL functionality in this malignancy will be discussed.  Moreover,we will focus on the genetic regulation of HDL metabolism, as well as the involvement of HDL indisturbances of cholesterol trafficking in CRC. Finally, possible therapeutic implications related toHDL will be presented. Given the available evidence, future studies are needed to resolve all raisedissues concerning the suggested protective role of HDL in CRC, its presumed function as a biomarker,and eventual therapeutic approaches based on HDL.",
publisher = "MDPI AG",
journal = "International Journal of Molecular Sciences",
title = "Revealing the role of high-density lipoprotein in colorectal cancer",
volume = "22",
number = "7",
doi = "10.3390/ijms22073352"
}

Zeljković, A., Vekić, J., Mihajlović, M., Gojković, T., Vladimirov, S., Zeljković, D., Spasojević-Kalimanovska, V.,& Trifunović, B.. (2021). Revealing the role of high-density lipoprotein in colorectal cancer. in International Journal of Molecular Sciences
MDPI AG., 22(7).
https://doi.org/10.3390/ijms22073352

Zeljković A, Vekić J, Mihajlović M, Gojković T, Vladimirov S, Zeljković D, Spasojević-Kalimanovska V, Trifunović B. Revealing the role of high-density lipoprotein in colorectal cancer. in International Journal of Molecular Sciences. 2021;22(7).
doi:10.3390/ijms22073352 .

Zeljković, Aleksandra, Vekić, Jelena, Mihajlović, Marija, Gojković, Tamara, Vladimirov, Sandra, Zeljković, Dejan, Spasojević-Kalimanovska, Vesna, Trifunović, Bratislav, "Revealing the role of high-density lipoprotein in colorectal cancer" in International Journal of Molecular Sciences, 22, no. 7 (2021),
https://doi.org/10.3390/ijms22073352 . .

TY  - JOUR
AU  - Baralić, Katarina
AU  - Živančević, Katarina
AU  - Jorgovanović, Dragica
AU  - Bojanin, Dragana
AU  - Radovanović, Jelena
AU  - Gojković, Tamara
AU  - Buha-Đorđević, Aleksandra
AU  - Ćurčić, Marijana
AU  - Mandinić, Zoran
AU  - Bulat, Zorica
AU  - Antonijević, Biljana
AU  - Đukić-Ćosić, Danijela
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3916
AB  - Linkage between bis(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP), and bisphenol A (BPA) coexposure and type 2 diabetes mellitus (T2DM), as well as ability of multi-strained probiotic to reduce DEHP, DBP and BPA mixture-induced oxidative damage in rat pancreas were investigated. The Comparative Toxicogenomics Database, Cytoscape software and ToppGene Suite were used for data-mining. Animals were sorted into seven groups (n = 6): (1) Control group: corn oil, (2) P: probiotic: Saccharomyces boulardii + Lactobacillus rhamnosus + Lactobacillus plantarum LP 6595 + Lactobacillus plantarum HEAL9; (3) DEHP: 50 mg/kg b.w./day, (4) DBP: 50 mg/kg b.w./day, (5) BPA: 25 mg/kg b.w./day, and (6) MIX: 50 mg/kg b.w./day DEHP + 50 mg/kg b.w/ day DBP + 25 mg/kg b.w./day BPA; (7) MIX + P. Rats were sacrificed after 28 days of oral exposure. In silico investigation highlighted 44 DEHP, DBP and BPA mutual genes linked to the T2DM, while apoptosis and oxidative stress were highlighted as the main mechanisms of DEHP, DBP and BPA mixture-linked T2DM. In vivo experiment confirmed the presence of significant changes in redox status parameters (TOS, SOD and SH groups) only in the MIX group, indicating possible additive effects, while probiotic ameliorated mixture-induced redox status changes in rat pancreatic tissue.
PB  - Elsevier
T2  - Food and Chemical Toxicology
T1  - Probiotic reduced the impact of phthalates and bisphenol A mixture on type 2 diabetes mellitus development: Merging bioinformatics with in vivo analysis
VL  - 154
DO  - 10.1016/j.fct.2021.112325
ER  - 

@article{
author = "Baralić, Katarina and Živančević, Katarina and Jorgovanović, Dragica and Bojanin, Dragana and Radovanović, Jelena and Gojković, Tamara and Buha-Đorđević, Aleksandra and Ćurčić, Marijana and Mandinić, Zoran and Bulat, Zorica and Antonijević, Biljana and Đukić-Ćosić, Danijela",
year = "2021",
abstract = "Linkage between bis(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP), and bisphenol A (BPA) coexposure and type 2 diabetes mellitus (T2DM), as well as ability of multi-strained probiotic to reduce DEHP, DBP and BPA mixture-induced oxidative damage in rat pancreas were investigated. The Comparative Toxicogenomics Database, Cytoscape software and ToppGene Suite were used for data-mining. Animals were sorted into seven groups (n = 6): (1) Control group: corn oil, (2) P: probiotic: Saccharomyces boulardii + Lactobacillus rhamnosus + Lactobacillus plantarum LP 6595 + Lactobacillus plantarum HEAL9; (3) DEHP: 50 mg/kg b.w./day, (4) DBP: 50 mg/kg b.w./day, (5) BPA: 25 mg/kg b.w./day, and (6) MIX: 50 mg/kg b.w./day DEHP + 50 mg/kg b.w/ day DBP + 25 mg/kg b.w./day BPA; (7) MIX + P. Rats were sacrificed after 28 days of oral exposure. In silico investigation highlighted 44 DEHP, DBP and BPA mutual genes linked to the T2DM, while apoptosis and oxidative stress were highlighted as the main mechanisms of DEHP, DBP and BPA mixture-linked T2DM. In vivo experiment confirmed the presence of significant changes in redox status parameters (TOS, SOD and SH groups) only in the MIX group, indicating possible additive effects, while probiotic ameliorated mixture-induced redox status changes in rat pancreatic tissue.",
publisher = "Elsevier",
journal = "Food and Chemical Toxicology",
title = "Probiotic reduced the impact of phthalates and bisphenol A mixture on type 2 diabetes mellitus development: Merging bioinformatics with in vivo analysis",
volume = "154",
doi = "10.1016/j.fct.2021.112325"
}

Baralić, K., Živančević, K., Jorgovanović, D., Bojanin, D., Radovanović, J., Gojković, T., Buha-Đorđević, A., Ćurčić, M., Mandinić, Z., Bulat, Z., Antonijević, B.,& Đukić-Ćosić, D.. (2021). Probiotic reduced the impact of phthalates and bisphenol A mixture on type 2 diabetes mellitus development: Merging bioinformatics with in vivo analysis. in Food and Chemical Toxicology
Elsevier., 154.
https://doi.org/10.1016/j.fct.2021.112325

Baralić K, Živančević K, Jorgovanović D, Bojanin D, Radovanović J, Gojković T, Buha-Đorđević A, Ćurčić M, Mandinić Z, Bulat Z, Antonijević B, Đukić-Ćosić D. Probiotic reduced the impact of phthalates and bisphenol A mixture on type 2 diabetes mellitus development: Merging bioinformatics with in vivo analysis. in Food and Chemical Toxicology. 2021;154.
doi:10.1016/j.fct.2021.112325 .

Baralić, Katarina, Živančević, Katarina, Jorgovanović, Dragica, Bojanin, Dragana, Radovanović, Jelena, Gojković, Tamara, Buha-Đorđević, Aleksandra, Ćurčić, Marijana, Mandinić, Zoran, Bulat, Zorica, Antonijević, Biljana, Đukić-Ćosić, Danijela, "Probiotic reduced the impact of phthalates and bisphenol A mixture on type 2 diabetes mellitus development: Merging bioinformatics with in vivo analysis" in Food and Chemical Toxicology, 154 (2021),
https://doi.org/10.1016/j.fct.2021.112325 . .

TY  - JOUR
AU  - Vladimirov, Sandra
AU  - Gojković, Tamara
AU  - Zeljković, Aleksandra
AU  - Jelić-Ivanović, Zorana
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2020
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3653
AB  - Background:Non-cholesterol  sterols  (NCS)  are  promising biomarkers for estimation of cholesterol homeostasis properties.  In  addition,  determination  of  NCS  in  high-density lipoprotein (HDL) fraction (HDL-NCS) could provide information on cholesterol efflux. However, matrix effects interfere in liquid chromatography–mass spectrometry (LC-MS)analysis  of  NCS,  thereby  impairing  the  method  sensitivity.The aims of this study were development, optimization and validation  of  LC-MS  method  for  quantification  of  NCS  in serum  and  HDL-NCS.  Additionally,  matrix  effect  interfer-ences  and  methods  application  in  individual  serum  samples were examined.Methods:HDL precipitating reagent was used for HDL isolation. Matrix effect was examined by comparing different surrogates  by  simple  regression  analysis.  Validation  was conducted according to the FDA-ICH guideline. 20 healthy volunteers were recruited for testing of method application.Results:The  observed  matrix  effect  was  30%,  and  matrix comparison  showed  that  cholesterol  was  the  dominant contributor  to  the  matrix  effect.  Cholesterol  concentration was  adjusted  by  construction  of  the  calibration  curve  for serum  and  HDL  fraction  (5  mmol/L  and  2.5  mmol/L,respectively). The intra- and inter- run variabilities for NCSs were 4.7–10.3% for serum NCS and 3.6–13.6% for HDL-NCS  and  4.6–9.5%  for  serum  NCSs  and  2.5–9.8%  for HDL-NCS,  respectively.  Recovery  studies  showed  satisfactory  results  for  NCSs:  89.8–113.1%  for  serum  NCS  and85.3–95.8% for HDL-NCS. Conclusions:The  method  was  successfully  developed  and optimized. The matrix interference was solved by customising  calibration  curves  for  each  method  and  sample  type.The  measurement  of  NCS  in  HDL  fraction  was  proposed for the first time as potentially useful procedure in biomedical researches.
AB  - Uvod: Neholesterolski steroli (NHS) predstavljaju potencijalne biomarkere homeostaze holesterola. Pored toga, određivanje NHS u HDL frakciji (HDL-NHS) moglo bi da pruži dodatne informacije o efluksu holesterola. Međutim, određivanje NHS metodom tečne hromatografije - masene spektrometrije (LC-MS) je podložno uticaju matriksa usled čega dolazi do sniženja osetljivost metode. Studija je prvenstveno imala za cilj razvoj, optimizaciju i validaciju LC-MS metode za kvantifikaciju NHS u serumu i HDL-NHS. Pored toga, detaljno je ispitan efekat matriksa i metoda primenjena za analizu uzoraka seruma zdravih dobrovoljaca. Metode: Izolacija HDL frakcije je izvršena upotrebom precipitirajućeg reagensa. Efekat matriksa je ispitan poređenjem različitih surogat matriksa regresionom analizom. Validacija je sprovedena u skladu sa FDA-ICH vodičem za validaciju bioanalitičkih metoda. Korišćeni su serumi 20 zdravih dobrovoljaca u cilju kliničke evaluacije metode. Rezultati: Efekat matriksa je iznosio 30% i dalja analiza je pokazala da je holesterol bio glavni uzročnik efekta matriksa. U cilju rešavanja ove interferencije, kalibracione krive za su pripremljene u metanolnom rastvoru holesterola koncentracije 5 mmol/L, a za kvantifikaciju HDL-NHS u metanolnom rastvoru holesterola koncentracije 2,5 mmol/L. Varijacije unutar serije su bile 4,7-10,3% za NHS i 3,6-13,6% za HDL-NHS, a između serija 4,6-9,5% za NHS i 2,5-9,8% za HDL-NHS. Studije prinosa analita su pokazale zadovoljavajuće rezultate: 89,8-113,1% za NHS i 85,3-95,8% za HDL-NHS. Zaključak: Metoda je uspešno optimizovana i validirana. Interferencija usled prisustva holesterola je korigovana upotrebom odgovarajućih kalibracionih krivih za svaku vrstu uzorka. Određivanje HDL-NHS je po prvi put predloženo kao potencijalno korisna procedura u biomedicinskim istraživanjima.
PB  - Belgrade : Society of Medical Biochemists of Serbia
T2  - Journal of Medical Biochemistry
T1  - Determination of non-cholesterol sterols in serum and HDL fraction by LC/MS-ms: Significance of matrix-related interferences
T1  - Određivanje neholesterolskih sterola u serumu i HDL frakciji upotrebom LC/MS-MS - ispitivanje uticaja matriksa
VL  - 39
SP  - 299
EP  - 308
DO  - 10.2478/jomb-2019-0044
ER  - 

@article{
author = "Vladimirov, Sandra and Gojković, Tamara and Zeljković, Aleksandra and Jelić-Ivanović, Zorana and Spasojević-Kalimanovska, Vesna",
year = "2020",
abstract = "Background:Non-cholesterol  sterols  (NCS)  are  promising biomarkers for estimation of cholesterol homeostasis properties.  In  addition,  determination  of  NCS  in  high-density lipoprotein (HDL) fraction (HDL-NCS) could provide information on cholesterol efflux. However, matrix effects interfere in liquid chromatography–mass spectrometry (LC-MS)analysis  of  NCS,  thereby  impairing  the  method  sensitivity.The aims of this study were development, optimization and validation  of  LC-MS  method  for  quantification  of  NCS  in serum  and  HDL-NCS.  Additionally,  matrix  effect  interfer-ences  and  methods  application  in  individual  serum  samples were examined.Methods:HDL precipitating reagent was used for HDL isolation. Matrix effect was examined by comparing different surrogates  by  simple  regression  analysis.  Validation  was conducted according to the FDA-ICH guideline. 20 healthy volunteers were recruited for testing of method application.Results:The  observed  matrix  effect  was  30%,  and  matrix comparison  showed  that  cholesterol  was  the  dominant contributor  to  the  matrix  effect.  Cholesterol  concentration was  adjusted  by  construction  of  the  calibration  curve  for serum  and  HDL  fraction  (5  mmol/L  and  2.5  mmol/L,respectively). The intra- and inter- run variabilities for NCSs were 4.7–10.3% for serum NCS and 3.6–13.6% for HDL-NCS  and  4.6–9.5%  for  serum  NCSs  and  2.5–9.8%  for HDL-NCS,  respectively.  Recovery  studies  showed  satisfactory  results  for  NCSs:  89.8–113.1%  for  serum  NCS  and85.3–95.8% for HDL-NCS. Conclusions:The  method  was  successfully  developed  and optimized. The matrix interference was solved by customising  calibration  curves  for  each  method  and  sample  type.The  measurement  of  NCS  in  HDL  fraction  was  proposed for the first time as potentially useful procedure in biomedical researches., Uvod: Neholesterolski steroli (NHS) predstavljaju potencijalne biomarkere homeostaze holesterola. Pored toga, određivanje NHS u HDL frakciji (HDL-NHS) moglo bi da pruži dodatne informacije o efluksu holesterola. Međutim, određivanje NHS metodom tečne hromatografije - masene spektrometrije (LC-MS) je podložno uticaju matriksa usled čega dolazi do sniženja osetljivost metode. Studija je prvenstveno imala za cilj razvoj, optimizaciju i validaciju LC-MS metode za kvantifikaciju NHS u serumu i HDL-NHS. Pored toga, detaljno je ispitan efekat matriksa i metoda primenjena za analizu uzoraka seruma zdravih dobrovoljaca. Metode: Izolacija HDL frakcije je izvršena upotrebom precipitirajućeg reagensa. Efekat matriksa je ispitan poređenjem različitih surogat matriksa regresionom analizom. Validacija je sprovedena u skladu sa FDA-ICH vodičem za validaciju bioanalitičkih metoda. Korišćeni su serumi 20 zdravih dobrovoljaca u cilju kliničke evaluacije metode. Rezultati: Efekat matriksa je iznosio 30% i dalja analiza je pokazala da je holesterol bio glavni uzročnik efekta matriksa. U cilju rešavanja ove interferencije, kalibracione krive za su pripremljene u metanolnom rastvoru holesterola koncentracije 5 mmol/L, a za kvantifikaciju HDL-NHS u metanolnom rastvoru holesterola koncentracije 2,5 mmol/L. Varijacije unutar serije su bile 4,7-10,3% za NHS i 3,6-13,6% za HDL-NHS, a između serija 4,6-9,5% za NHS i 2,5-9,8% za HDL-NHS. Studije prinosa analita su pokazale zadovoljavajuće rezultate: 89,8-113,1% za NHS i 85,3-95,8% za HDL-NHS. Zaključak: Metoda je uspešno optimizovana i validirana. Interferencija usled prisustva holesterola je korigovana upotrebom odgovarajućih kalibracionih krivih za svaku vrstu uzorka. Određivanje HDL-NHS je po prvi put predloženo kao potencijalno korisna procedura u biomedicinskim istraživanjima.",
publisher = "Belgrade : Society of Medical Biochemists of Serbia",
journal = "Journal of Medical Biochemistry",
title = "Determination of non-cholesterol sterols in serum and HDL fraction by LC/MS-ms: Significance of matrix-related interferences, Određivanje neholesterolskih sterola u serumu i HDL frakciji upotrebom LC/MS-MS - ispitivanje uticaja matriksa",
volume = "39",
pages = "299-308",
doi = "10.2478/jomb-2019-0044"
}

Vladimirov, S., Gojković, T., Zeljković, A., Jelić-Ivanović, Z.,& Spasojević-Kalimanovska, V.. (2020). Determination of non-cholesterol sterols in serum and HDL fraction by LC/MS-ms: Significance of matrix-related interferences. in Journal of Medical Biochemistry
Belgrade : Society of Medical Biochemists of Serbia., 39, 299-308.
https://doi.org/10.2478/jomb-2019-0044

Vladimirov S, Gojković T, Zeljković A, Jelić-Ivanović Z, Spasojević-Kalimanovska V. Determination of non-cholesterol sterols in serum and HDL fraction by LC/MS-ms: Significance of matrix-related interferences. in Journal of Medical Biochemistry. 2020;39:299-308.
doi:10.2478/jomb-2019-0044 .

Vladimirov, Sandra, Gojković, Tamara, Zeljković, Aleksandra, Jelić-Ivanović, Zorana, Spasojević-Kalimanovska, Vesna, "Determination of non-cholesterol sterols in serum and HDL fraction by LC/MS-ms: Significance of matrix-related interferences" in Journal of Medical Biochemistry, 39 (2020):299-308,
https://doi.org/10.2478/jomb-2019-0044 . .

TY  - JOUR
AU  - Vladimirov, Sandra
AU  - Zeljković, Aleksandra
AU  - Gojković, Tamara
AU  - Miljković, Milica
AU  - Stefanović, Aleksandra
AU  - Zeljković, Dejan
AU  - Trifunović, Bratislav
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2020
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3623
AB  - Background:Vitamin D deficiency is repeatedly reported in colorectal  cancer  (CRC).  Since  cholesterol  and  vitamin  D share common precursor 7-dehydrocholesterol (7-DHC), it would be important to explore the associations of key vitamin D metabolites and serum lipid parameters in patients with high and low grade CRC. The aim of this study was toanalyze    relationships    between    serum    25(OH)D3,24,25(OH)2D3  and  7-DHC  levels  and  serum  lipids  inpatients with CRC, and to evaluate their potential for prediction of risk for development of high grade CRC. Methods:We  recruited  82  patients  CRC  and  77  controls.7-DHC, 25(OH)D3 and 24,25(OH)2D3 were quantified by LC-MS/MS methods.Results:7-DHC, 25(OH)D3 and vitamin D metabolic ratio(VDMR)  were  significantly  lower  in  CRC  patients  than  in control   group   (P<0.001,   P<0.010,   P<0.050   and P<0.050,  respectively).  25(OH)D3  levels  were  higher  inpatients  with  grade  I  CRC  when  compared  to  grade  II(P<0.050). All vitamin D metabolites positively correlated with  total  cholesterol  (TC)  concentration  in  CRC  patients.25(OH)D3 was significant predictor of increased CRC risk(P<0.010).   After   adjustment   for   TC   concentration,25(OH)D3 lost its predictive abilities. However, 25(OH)D3 remained significant predictor of poorly differentiated type of cancer (P<0.050). Conclusions:We  found  significant  positive  association between  vitamin  D  status  and  serum  total  cholesterol.Although low 25(OH)D3 was found to be a significant risk factor for CRC development, the obtained results primarily suggest profound impact of cholesterol level on vitamin D status  in  CRC.  However,  our  results  suggest  that  low 25(OH)D3 might independently contribute to development of poorly differentiated tumor.
AB  - Uvod: Deficijencija vitamina D je učestalo javlja kod obolelih od kolorektalnog karcinoma (CRC). Kako holesterol i vitamin D dele zajednički prekursor 7-dehidroholesterol (7-DHC), bilo bi značajno ispitati povezanost ključnih metabolita vitamin D i serumskih lipidnih parametara kod pacijenata sa CRC klasifikovanih na osnovu gradusa. U ovom radu ispitivali smo odnos između serumskih koncentracija 25(OH)D3, 24,25(OH)2D3 and 7-DHC i serumskih lipida kod pacijenata sa CRC, kao i doprinos metabolita vitamina D u predikciji rizika za nastanak CRC visokog gradusa. Metode: U studiji su učestvovala 82 pacijenta sa CRC i 77 zdravih ispitanika. 7-DHC, 25(OH)D3 i 24,25(OH)2D3 su kvantifikovani pomoću metode LC-MS/MS. Rezultati: 7-DHC, 25(OH)D3 i odnos metabolita vitamina D (VDMR) su bili značajno niži kod pacijenata sa CRC u odnosu na kontrolnu grupu (P<0,001, P<0,010, P<0,050 i P<0,050, redom). Koncentracije 25(OH)D3 su bile više kod pacijenata sa gradusom I u odnosu na pacijente sa gradusom II (P<0,050). Svi metaboliti vitamina D su pozitivno korelirali sa ukupnim holesterolom kod pacijenata sa CRC. 25(OH)D3 je bio značajan prediktor povećanog rizika za nastanak CRC (P<0,010). Nakon korekcije za koncentraciju ukupnog holesterola, 25(OH)D3 je izgubio prediktivni značaj. Međutim, 25(OH)D3 je ostao značajan prediktor slabo diferenciranog karcinoma (P<0,050). Zaključak: Utvrđena je značajna pozitivna korelacija iz među statusa vitamina D i serumskih koncentracija ukupnog holesterola. Iako je uočeno da je nizak 25(OH)D3 značajan faktor rizika za razvoj CRC, naši rezultati upućuju na dominantan uticaj holesterola na status vitamina D kod ovih pacijenata. Ipak, uočeno je da niski nivoi 25(OH)D3 mogu nezavisno doprineti razvoju slabo diferentovanih oblika CRC.
PB  - Beograd : Društvo medicinskih biohemičara Srbije
T2  - Journal of Medical Biochemistry
T1  - Associations of cholesterol and vitamin D metabolites with the risk for development of high grade colorectal cancer
T1  - Povezanost metabolita holesterola i vitamina D sa rizikom za nastanak kolorektalnog karcinoma visokog gradusa
VL  - 39
IS  - 3
SP  - 318
EP  - 327
DO  - 10.2478/jomb-2019-0047
ER  - 

@article{
author = "Vladimirov, Sandra and Zeljković, Aleksandra and Gojković, Tamara and Miljković, Milica and Stefanović, Aleksandra and Zeljković, Dejan and Trifunović, Bratislav and Spasojević-Kalimanovska, Vesna",
year = "2020",
abstract = "Background:Vitamin D deficiency is repeatedly reported in colorectal  cancer  (CRC).  Since  cholesterol  and  vitamin  D share common precursor 7-dehydrocholesterol (7-DHC), it would be important to explore the associations of key vitamin D metabolites and serum lipid parameters in patients with high and low grade CRC. The aim of this study was toanalyze    relationships    between    serum    25(OH)D3,24,25(OH)2D3  and  7-DHC  levels  and  serum  lipids  inpatients with CRC, and to evaluate their potential for prediction of risk for development of high grade CRC. Methods:We  recruited  82  patients  CRC  and  77  controls.7-DHC, 25(OH)D3 and 24,25(OH)2D3 were quantified by LC-MS/MS methods.Results:7-DHC, 25(OH)D3 and vitamin D metabolic ratio(VDMR)  were  significantly  lower  in  CRC  patients  than  in control   group   (P<0.001,   P<0.010,   P<0.050   and P<0.050,  respectively).  25(OH)D3  levels  were  higher  inpatients  with  grade  I  CRC  when  compared  to  grade  II(P<0.050). All vitamin D metabolites positively correlated with  total  cholesterol  (TC)  concentration  in  CRC  patients.25(OH)D3 was significant predictor of increased CRC risk(P<0.010).   After   adjustment   for   TC   concentration,25(OH)D3 lost its predictive abilities. However, 25(OH)D3 remained significant predictor of poorly differentiated type of cancer (P<0.050). Conclusions:We  found  significant  positive  association between  vitamin  D  status  and  serum  total  cholesterol.Although low 25(OH)D3 was found to be a significant risk factor for CRC development, the obtained results primarily suggest profound impact of cholesterol level on vitamin D status  in  CRC.  However,  our  results  suggest  that  low 25(OH)D3 might independently contribute to development of poorly differentiated tumor., Uvod: Deficijencija vitamina D je učestalo javlja kod obolelih od kolorektalnog karcinoma (CRC). Kako holesterol i vitamin D dele zajednički prekursor 7-dehidroholesterol (7-DHC), bilo bi značajno ispitati povezanost ključnih metabolita vitamin D i serumskih lipidnih parametara kod pacijenata sa CRC klasifikovanih na osnovu gradusa. U ovom radu ispitivali smo odnos između serumskih koncentracija 25(OH)D3, 24,25(OH)2D3 and 7-DHC i serumskih lipida kod pacijenata sa CRC, kao i doprinos metabolita vitamina D u predikciji rizika za nastanak CRC visokog gradusa. Metode: U studiji su učestvovala 82 pacijenta sa CRC i 77 zdravih ispitanika. 7-DHC, 25(OH)D3 i 24,25(OH)2D3 su kvantifikovani pomoću metode LC-MS/MS. Rezultati: 7-DHC, 25(OH)D3 i odnos metabolita vitamina D (VDMR) su bili značajno niži kod pacijenata sa CRC u odnosu na kontrolnu grupu (P<0,001, P<0,010, P<0,050 i P<0,050, redom). Koncentracije 25(OH)D3 su bile više kod pacijenata sa gradusom I u odnosu na pacijente sa gradusom II (P<0,050). Svi metaboliti vitamina D su pozitivno korelirali sa ukupnim holesterolom kod pacijenata sa CRC. 25(OH)D3 je bio značajan prediktor povećanog rizika za nastanak CRC (P<0,010). Nakon korekcije za koncentraciju ukupnog holesterola, 25(OH)D3 je izgubio prediktivni značaj. Međutim, 25(OH)D3 je ostao značajan prediktor slabo diferenciranog karcinoma (P<0,050). Zaključak: Utvrđena je značajna pozitivna korelacija iz među statusa vitamina D i serumskih koncentracija ukupnog holesterola. Iako je uočeno da je nizak 25(OH)D3 značajan faktor rizika za razvoj CRC, naši rezultati upućuju na dominantan uticaj holesterola na status vitamina D kod ovih pacijenata. Ipak, uočeno je da niski nivoi 25(OH)D3 mogu nezavisno doprineti razvoju slabo diferentovanih oblika CRC.",
publisher = "Beograd : Društvo medicinskih biohemičara Srbije",
journal = "Journal of Medical Biochemistry",
title = "Associations of cholesterol and vitamin D metabolites with the risk for development of high grade colorectal cancer, Povezanost metabolita holesterola i vitamina D sa rizikom za nastanak kolorektalnog karcinoma visokog gradusa",
volume = "39",
number = "3",
pages = "318-327",
doi = "10.2478/jomb-2019-0047"
}

Vladimirov, S., Zeljković, A., Gojković, T., Miljković, M., Stefanović, A., Zeljković, D., Trifunović, B.,& Spasojević-Kalimanovska, V.. (2020). Associations of cholesterol and vitamin D metabolites with the risk for development of high grade colorectal cancer. in Journal of Medical Biochemistry
Beograd : Društvo medicinskih biohemičara Srbije., 39(3), 318-327.
https://doi.org/10.2478/jomb-2019-0047

Vladimirov S, Zeljković A, Gojković T, Miljković M, Stefanović A, Zeljković D, Trifunović B, Spasojević-Kalimanovska V. Associations of cholesterol and vitamin D metabolites with the risk for development of high grade colorectal cancer. in Journal of Medical Biochemistry. 2020;39(3):318-327.
doi:10.2478/jomb-2019-0047 .

Vladimirov, Sandra, Zeljković, Aleksandra, Gojković, Tamara, Miljković, Milica, Stefanović, Aleksandra, Zeljković, Dejan, Trifunović, Bratislav, Spasojević-Kalimanovska, Vesna, "Associations of cholesterol and vitamin D metabolites with the risk for development of high grade colorectal cancer" in Journal of Medical Biochemistry, 39, no. 3 (2020):318-327,
https://doi.org/10.2478/jomb-2019-0047 . .

TY  - JOUR
AU  - Ninić, Ana
AU  - Bogavac-Stanojević, Nataša
AU  - Sopić, Miron
AU  - Munjas, Jelena
AU  - Kotur-Stevuljević, Jelena
AU  - Miljković, Milica
AU  - Gojković, Tamara
AU  - Kalimanovska-Oštrić, Dimitra
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2019
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3339
AB  - Background: Coronary artery disease (CAD) is one of the most important causes of mortality and morbidity in wide world population. Dyslipidemia, inflammation and oxidative stress may contribute to disruption of endothelium structure and function, atherosclerosis and CAD. Our study was aimed to determine whether Cu/Zn superoxide dismutase (Cu/Zn SOD) and Mn superoxide dismutase (Mn SOD) gene expression could be modulated by oxidative stress in CAD patients. Methods: This study included 77 CAD patients and 31 apparently healthy persons. Serum lipid levels, high sensitivity C-reactive protein (hsCRP), total antioxidant status (TAS) and thiobarbituric acid-reacting substances (TBARS) were measured. SOD isoenzymes gene expression was determined in peripheral blood mononuclear cells using quantitative polymerase chain reaction. Results: Mn SOD messenger ribonucleic acid (mRNA) levels were significantly lower in CAD patients than in controls (p=0.011), while Cu/Zn SOD mRNA levels did not change significantly between tested groups (p=0.091). We found significantly lower high-density lipoprotein-cholesterol (HDL-c) (p lt 0.001) and TAS (p lt 0.001) levels and significantly higher hsCRP (p=0.002) and TBARS (p lt 0.001) in CAD patients than in controls. There were significant positive correlations between TAS and Mn SOD mRNA (rho=0.243, p=0.020) and TAS and Cu/Zn SOD mRNA (rho=0.359, p lt 0.001). TBARS negatively correlated only with Cu/Zn SOD mRNA (rho=-0.215, p=0.040). TAS levels remained independent predictor for Mn SOD mRNA levels (OR = 2.995, p=0.034). Conclusions: Results of this study showed that Mn SOD gene expression were decreased in CAD patients compared to controls and can be modulated by nonenzymatic antioxidant status in blood.
PB  - Društvo medicinskih biohemičara Srbije, Beograd i Versita
T2  - Journal of Medical Biochemistry
T1  - Superoxide dismutase isoenzymes gene expression in peripheral blood mononuclear cells in patients with coronary artery disease
VL  - 38
IS  - 3
SP  - 284
EP  - 291
DO  - 10.2478/jomb-2018-0041
ER  - 

@article{
author = "Ninić, Ana and Bogavac-Stanojević, Nataša and Sopić, Miron and Munjas, Jelena and Kotur-Stevuljević, Jelena and Miljković, Milica and Gojković, Tamara and Kalimanovska-Oštrić, Dimitra and Spasojević-Kalimanovska, Vesna",
year = "2019",
abstract = "Background: Coronary artery disease (CAD) is one of the most important causes of mortality and morbidity in wide world population. Dyslipidemia, inflammation and oxidative stress may contribute to disruption of endothelium structure and function, atherosclerosis and CAD. Our study was aimed to determine whether Cu/Zn superoxide dismutase (Cu/Zn SOD) and Mn superoxide dismutase (Mn SOD) gene expression could be modulated by oxidative stress in CAD patients. Methods: This study included 77 CAD patients and 31 apparently healthy persons. Serum lipid levels, high sensitivity C-reactive protein (hsCRP), total antioxidant status (TAS) and thiobarbituric acid-reacting substances (TBARS) were measured. SOD isoenzymes gene expression was determined in peripheral blood mononuclear cells using quantitative polymerase chain reaction. Results: Mn SOD messenger ribonucleic acid (mRNA) levels were significantly lower in CAD patients than in controls (p=0.011), while Cu/Zn SOD mRNA levels did not change significantly between tested groups (p=0.091). We found significantly lower high-density lipoprotein-cholesterol (HDL-c) (p lt 0.001) and TAS (p lt 0.001) levels and significantly higher hsCRP (p=0.002) and TBARS (p lt 0.001) in CAD patients than in controls. There were significant positive correlations between TAS and Mn SOD mRNA (rho=0.243, p=0.020) and TAS and Cu/Zn SOD mRNA (rho=0.359, p lt 0.001). TBARS negatively correlated only with Cu/Zn SOD mRNA (rho=-0.215, p=0.040). TAS levels remained independent predictor for Mn SOD mRNA levels (OR = 2.995, p=0.034). Conclusions: Results of this study showed that Mn SOD gene expression were decreased in CAD patients compared to controls and can be modulated by nonenzymatic antioxidant status in blood.",
publisher = "Društvo medicinskih biohemičara Srbije, Beograd i Versita",
journal = "Journal of Medical Biochemistry",
title = "Superoxide dismutase isoenzymes gene expression in peripheral blood mononuclear cells in patients with coronary artery disease",
volume = "38",
number = "3",
pages = "284-291",
doi = "10.2478/jomb-2018-0041"
}

Ninić, A., Bogavac-Stanojević, N., Sopić, M., Munjas, J., Kotur-Stevuljević, J., Miljković, M., Gojković, T., Kalimanovska-Oštrić, D.,& Spasojević-Kalimanovska, V.. (2019). Superoxide dismutase isoenzymes gene expression in peripheral blood mononuclear cells in patients with coronary artery disease. in Journal of Medical Biochemistry
Društvo medicinskih biohemičara Srbije, Beograd i Versita., 38(3), 284-291.
https://doi.org/10.2478/jomb-2018-0041

Ninić A, Bogavac-Stanojević N, Sopić M, Munjas J, Kotur-Stevuljević J, Miljković M, Gojković T, Kalimanovska-Oštrić D, Spasojević-Kalimanovska V. Superoxide dismutase isoenzymes gene expression in peripheral blood mononuclear cells in patients with coronary artery disease. in Journal of Medical Biochemistry. 2019;38(3):284-291.
doi:10.2478/jomb-2018-0041 .

Ninić, Ana, Bogavac-Stanojević, Nataša, Sopić, Miron, Munjas, Jelena, Kotur-Stevuljević, Jelena, Miljković, Milica, Gojković, Tamara, Kalimanovska-Oštrić, Dimitra, Spasojević-Kalimanovska, Vesna, "Superoxide dismutase isoenzymes gene expression in peripheral blood mononuclear cells in patients with coronary artery disease" in Journal of Medical Biochemistry, 38, no. 3 (2019):284-291,
https://doi.org/10.2478/jomb-2018-0041 . .

TY  - JOUR
AU  - Mihajlović, Marija
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Miljković, Milica
AU  - Stefanović, Aleksandra
AU  - Vekić, Jelena
AU  - Zeljković, Dejan
AU  - Trifunović, Bratislav
AU  - Kotur-Stevuljević, Jelena
AU  - Spasojević-Kalimanovska, Vesna
AU  - Zeljković, Aleksandra
PY  - 2019
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3334
AB  - Background: Previous studies revealed decreased level of high-density lipoprotein cholesterol (HDL-C) as important factor for development of colorectal cancer (CRC). Quantity and structure of HDL particles depend on activities of lipid transfer proteins lecithin:cholesterol acyltransferase (LCAT) and cholesteryl ester transfer protein (CETP), but this topic is largely unexplored in CRC. The main objective of this study was to investigate activities of LCAT and CETP in patients with CRC. Additionally, we analyzed activity of paraoxonase-1 (PON-1), as a main carrier of HDL-antioxidant function. Materials and methods: Ninety-nine CRC patients and 101 healthy individuals were included. LCAT and CETP activities were assessed by measuring rates of formation and transfer of cholesteryl esters. PON-1 paraoxonase and arylesterase activities were measured. Results: Lower levels of HDL-C (p  lt  .001) were observed in cohort of patients, alongside with decreased LCAT (p  lt  .050) and increased CETP activity (p  lt  .050). Both PON-1 activities were diminished in CRC (p  lt  .050 and p  lt  .001 respectively). Univariate logistic regression singled out HDL-C level (OR = 0.218, p  lt  .001), CETP activity (OR = 1.010, p  lt  .01) and mass (OR = 0.994, p  lt  .001) as possible markers of elevated CRC risk. CETP mass maintained its predictive significance when adjusted for traditional risk factors and level of oxidative stress (OR = 0.993, p  lt  .001; OR = 0.982, p  lt  .050, respectively). Conclusion: Our results demonstrated increased CETP and decreased LCAT and PON-1 activities in CRC patients. In preliminary analysis CETP mass was identified as potential significant predictor of CRC development, suggesting that alterations in HDL-C levels, alongside with changes in HDL structure might have a role in carcinogenesis.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Clinical Biochemistry
T1  - Changes in lecithin: cholesterol acyltransferase, cholesteryl ester transfer protein and paraoxonase-1 activities in patients with colorectal cancer
VL  - 63
SP  - 32
EP  - 38
DO  - 10.1016/j.clinbiochem.2018.11.010
ER  - 

@article{
author = "Mihajlović, Marija and Gojković, Tamara and Vladimirov, Sandra and Miljković, Milica and Stefanović, Aleksandra and Vekić, Jelena and Zeljković, Dejan and Trifunović, Bratislav and Kotur-Stevuljević, Jelena and Spasojević-Kalimanovska, Vesna and Zeljković, Aleksandra",
year = "2019",
abstract = "Background: Previous studies revealed decreased level of high-density lipoprotein cholesterol (HDL-C) as important factor for development of colorectal cancer (CRC). Quantity and structure of HDL particles depend on activities of lipid transfer proteins lecithin:cholesterol acyltransferase (LCAT) and cholesteryl ester transfer protein (CETP), but this topic is largely unexplored in CRC. The main objective of this study was to investigate activities of LCAT and CETP in patients with CRC. Additionally, we analyzed activity of paraoxonase-1 (PON-1), as a main carrier of HDL-antioxidant function. Materials and methods: Ninety-nine CRC patients and 101 healthy individuals were included. LCAT and CETP activities were assessed by measuring rates of formation and transfer of cholesteryl esters. PON-1 paraoxonase and arylesterase activities were measured. Results: Lower levels of HDL-C (p  lt  .001) were observed in cohort of patients, alongside with decreased LCAT (p  lt  .050) and increased CETP activity (p  lt  .050). Both PON-1 activities were diminished in CRC (p  lt  .050 and p  lt  .001 respectively). Univariate logistic regression singled out HDL-C level (OR = 0.218, p  lt  .001), CETP activity (OR = 1.010, p  lt  .01) and mass (OR = 0.994, p  lt  .001) as possible markers of elevated CRC risk. CETP mass maintained its predictive significance when adjusted for traditional risk factors and level of oxidative stress (OR = 0.993, p  lt  .001; OR = 0.982, p  lt  .050, respectively). Conclusion: Our results demonstrated increased CETP and decreased LCAT and PON-1 activities in CRC patients. In preliminary analysis CETP mass was identified as potential significant predictor of CRC development, suggesting that alterations in HDL-C levels, alongside with changes in HDL structure might have a role in carcinogenesis.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Clinical Biochemistry",
title = "Changes in lecithin: cholesterol acyltransferase, cholesteryl ester transfer protein and paraoxonase-1 activities in patients with colorectal cancer",
volume = "63",
pages = "32-38",
doi = "10.1016/j.clinbiochem.2018.11.010"
}

Mihajlović, M., Gojković, T., Vladimirov, S., Miljković, M., Stefanović, A., Vekić, J., Zeljković, D., Trifunović, B., Kotur-Stevuljević, J., Spasojević-Kalimanovska, V.,& Zeljković, A.. (2019). Changes in lecithin: cholesterol acyltransferase, cholesteryl ester transfer protein and paraoxonase-1 activities in patients with colorectal cancer. in Clinical Biochemistry
Pergamon-Elsevier Science Ltd, Oxford., 63, 32-38.
https://doi.org/10.1016/j.clinbiochem.2018.11.010

Mihajlović M, Gojković T, Vladimirov S, Miljković M, Stefanović A, Vekić J, Zeljković D, Trifunović B, Kotur-Stevuljević J, Spasojević-Kalimanovska V, Zeljković A. Changes in lecithin: cholesterol acyltransferase, cholesteryl ester transfer protein and paraoxonase-1 activities in patients with colorectal cancer. in Clinical Biochemistry. 2019;63:32-38.
doi:10.1016/j.clinbiochem.2018.11.010 .

Mihajlović, Marija, Gojković, Tamara, Vladimirov, Sandra, Miljković, Milica, Stefanović, Aleksandra, Vekić, Jelena, Zeljković, Dejan, Trifunović, Bratislav, Kotur-Stevuljević, Jelena, Spasojević-Kalimanovska, Vesna, Zeljković, Aleksandra, "Changes in lecithin: cholesterol acyltransferase, cholesteryl ester transfer protein and paraoxonase-1 activities in patients with colorectal cancer" in Clinical Biochemistry, 63 (2019):32-38,
https://doi.org/10.1016/j.clinbiochem.2018.11.010 . .

TY  - THES
AU  - Gojković, Tamara
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6820
UR  - http://nardus.mpn.gov.rs/handle/123456789/11251
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:19912/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=2048345698
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3675
AB  - Ateroskleroza predstavlja hroničnu, fokalnu bolest intime krvnih sudova. Iako jeveliki broj etioloških faktora uključen u patogenezu i progresiju ateroskleroze,dislipidemija ima ključnu ulogu u razvoju ateroma. Ateroskleroza se nalazi u osnovi većinekardiovaskularnih bolesti (KVB), uključujući i ishemijsku bolest srca (IBS). Statinipredstavljaju hipolipemike izbora u primarnoj i sekundarnoj prevenciji KVB. Pored dejstvana inhibiciju sinteze holesterola, statini ostvaruju i brojne plejotropne efekte. U rutinskojpraksi za postavljanje dijagnoze dislipidemije i praćenje odgovora na terapiju statinimakoriste se osnovni parametri lipidnog statusa. Međutim, za sagledavanje celokupnogmetabolizma holesterola i praćenje njegove homeostaze, neophodno je odrediti efikasnostsinteze i apsorpcije holesterola, njegovu raspodelu između lipoproteinskih čestica, kao iočuvanost funkcije reverznog transporta holesterola. Homeostaza holesterola predstavljaravnotežu između sinteze i apsorpcije holesterola. Određivanje koncentracija prekursora usintezi holesterola (dezmosterol i latosterol) i fitosterola (kampesterol, stigmasterol i β-sitosterol) kao surogat-markera apsorpcije holesterola, može ukazati na rani razvojdislipidemije i predvideti odgovor na terapiju statinima. Jednim imenom ovi markeri senazivaju neholesterolski steroli (NHS). Relativno niske koncentracije NHS predstavljajuspecifičan problem za njihovu kvantifikaciju. Ovo je dodatni razlog za opsežnu validacijumetoda za određivanje NHS, kao i za utvrđivanjem preanalitičkih i analitičkih faktorauticaja na kvantifikaciju NHS. Kako bi se doprinelo boljem razumevanju metabolizmaholesterola i uticaja terapije statinima na homeostazu holesterola, ciljevi ove studije su bili:uspostavljanje i validacija metode za određivanje NHS; određivanje koncentracija NHSkod zdravih ispitanika (KG) i pacijenata sa IBS; određivanje obrazaca homeostazeholesterola i njihove povezanosti sa osnovnim parametrima lipidnog statusa i raspodelomlipoproteinskih čestica male gustine (LDL) u ispitivanim grupama, i određivanje masenekoncentracije fosfolipaze A2 udružene sa lipoproteinom (Lp-PLA2).U istraživanju je učestvovala 31 zdrava osoba, 32 pacijenta sa IBS na terapijistatinima i 47 pacijenata sa IBS bez terapije hipolipemicima. Koncentracije NHS iprocentualni udeli pojedinačnih masnih kiselina (MK) u odnosu na ukupanmasnokiselinski sastav plazme određivani su metodom gasne hromatografije sa plamenojonizacionomdetekcijom (GC-FID). Relativni udeli pojedinih subklasa lipoproteinaodređeni su gradijent-gel elektroforezom. Masene koncentracije Lp-PLA2 određene suELISA imunohemijskom metodom...
AB  - Atherosclerosis is a chronic, focal disease of the blood vessel intima. Even thoughmany etiological factors are involved in the pathogenesis and progression ofatherosclerosis, dyslipidemia has the key role in atheroma development. Atherosclerosis isthe underlying cause of the most cardiovascular diseases (CVD), including coronary arterydisease (CAD). Statins represent a hypolipemics of choice in primary and secondary CADprevention. In addition to the inhibitory effect on cholesterol synthesis, statins also havenumerous pleiotropic effects. Basic lipid parameters are used for diagnosing dyslipidemiaand monitoring the statin therapy response in clinical practice. However, in order toexamine the overall cholesterol metabolism and monitor its homeostasis, it is necessary toexamine the efficiency of cholesterol synthesis and absorption, its distribution betweenlipoprotein particles, and the preservation of the reverse cholesterol transport function.Cholesterol homeostasis represents the balance between cholesterol synthesis andabsorption. Non-cholesterol sterols (NCSs) represent cholesterol synthesis precursors(desmosterol and lathosterol) and cholesterol absorption surrogate markers (phytosterols -campesterol, stigmasterol and β-sitosterol). These markers can indicate early developmentof dyslipidemia and predict response to statin therapy. Relatively low NCSs concentrationsrepresent a specific problem for their quantification. This represents the additional reasonto conduct an extensive method validation for NCSs determination, as well as to resolvepre-analytical and analytical factors of influence. In order to contribute to a betterunderstanding of cholesterol metabolism and the statin effects on cholesterol homeostasis,the objectives of this study were: establishing and validating the method for NHSsdetermination; determination of NHSs concentrations in healthy subjects (CG) and CADpatients; determination of cholesterol homeostasis patterns and their association with basiclipid parameters and distribution of low-density lipoprotein subclasses (LDL) in examinedgroups, and dtermination of lipoprotein-associated phospholipase A2 concentration.The study included 31 healthy controls (CG), 32 statin-treated patients and 47statin-naive CAD patients. The NCSs concentrations and fatty acid (FA) profiles weredetermined by gas chromatography-flame ionization detection (GC-FID). Lipoproteinsubclasses were separated by gradient gel electrophoresis and lipoprotein-associatedphospholipase A2 concentration has been determined by ELISA assay...
PB  - Универзитет у Београду, Фармацеутски факултет
T2  - Универзитет у Београду
T1  - Značaj određivanja markera sinteza i apsorpcije holesterola kod zdravih ispitanika i pacijenata sa ishemijskom bolešću srca
UR  - https://hdl.handle.net/21.15107/rcub_nardus_11251
ER  - 

@phdthesis{
author = "Gojković, Tamara",
year = "2018",
abstract = "Ateroskleroza predstavlja hroničnu, fokalnu bolest intime krvnih sudova. Iako jeveliki broj etioloških faktora uključen u patogenezu i progresiju ateroskleroze,dislipidemija ima ključnu ulogu u razvoju ateroma. Ateroskleroza se nalazi u osnovi većinekardiovaskularnih bolesti (KVB), uključujući i ishemijsku bolest srca (IBS). Statinipredstavljaju hipolipemike izbora u primarnoj i sekundarnoj prevenciji KVB. Pored dejstvana inhibiciju sinteze holesterola, statini ostvaruju i brojne plejotropne efekte. U rutinskojpraksi za postavljanje dijagnoze dislipidemije i praćenje odgovora na terapiju statinimakoriste se osnovni parametri lipidnog statusa. Međutim, za sagledavanje celokupnogmetabolizma holesterola i praćenje njegove homeostaze, neophodno je odrediti efikasnostsinteze i apsorpcije holesterola, njegovu raspodelu između lipoproteinskih čestica, kao iočuvanost funkcije reverznog transporta holesterola. Homeostaza holesterola predstavljaravnotežu između sinteze i apsorpcije holesterola. Određivanje koncentracija prekursora usintezi holesterola (dezmosterol i latosterol) i fitosterola (kampesterol, stigmasterol i β-sitosterol) kao surogat-markera apsorpcije holesterola, može ukazati na rani razvojdislipidemije i predvideti odgovor na terapiju statinima. Jednim imenom ovi markeri senazivaju neholesterolski steroli (NHS). Relativno niske koncentracije NHS predstavljajuspecifičan problem za njihovu kvantifikaciju. Ovo je dodatni razlog za opsežnu validacijumetoda za određivanje NHS, kao i za utvrđivanjem preanalitičkih i analitičkih faktorauticaja na kvantifikaciju NHS. Kako bi se doprinelo boljem razumevanju metabolizmaholesterola i uticaja terapije statinima na homeostazu holesterola, ciljevi ove studije su bili:uspostavljanje i validacija metode za određivanje NHS; određivanje koncentracija NHSkod zdravih ispitanika (KG) i pacijenata sa IBS; određivanje obrazaca homeostazeholesterola i njihove povezanosti sa osnovnim parametrima lipidnog statusa i raspodelomlipoproteinskih čestica male gustine (LDL) u ispitivanim grupama, i određivanje masenekoncentracije fosfolipaze A2 udružene sa lipoproteinom (Lp-PLA2).U istraživanju je učestvovala 31 zdrava osoba, 32 pacijenta sa IBS na terapijistatinima i 47 pacijenata sa IBS bez terapije hipolipemicima. Koncentracije NHS iprocentualni udeli pojedinačnih masnih kiselina (MK) u odnosu na ukupanmasnokiselinski sastav plazme određivani su metodom gasne hromatografije sa plamenojonizacionomdetekcijom (GC-FID). Relativni udeli pojedinih subklasa lipoproteinaodređeni su gradijent-gel elektroforezom. Masene koncentracije Lp-PLA2 određene suELISA imunohemijskom metodom..., Atherosclerosis is a chronic, focal disease of the blood vessel intima. Even thoughmany etiological factors are involved in the pathogenesis and progression ofatherosclerosis, dyslipidemia has the key role in atheroma development. Atherosclerosis isthe underlying cause of the most cardiovascular diseases (CVD), including coronary arterydisease (CAD). Statins represent a hypolipemics of choice in primary and secondary CADprevention. In addition to the inhibitory effect on cholesterol synthesis, statins also havenumerous pleiotropic effects. Basic lipid parameters are used for diagnosing dyslipidemiaand monitoring the statin therapy response in clinical practice. However, in order toexamine the overall cholesterol metabolism and monitor its homeostasis, it is necessary toexamine the efficiency of cholesterol synthesis and absorption, its distribution betweenlipoprotein particles, and the preservation of the reverse cholesterol transport function.Cholesterol homeostasis represents the balance between cholesterol synthesis andabsorption. Non-cholesterol sterols (NCSs) represent cholesterol synthesis precursors(desmosterol and lathosterol) and cholesterol absorption surrogate markers (phytosterols -campesterol, stigmasterol and β-sitosterol). These markers can indicate early developmentof dyslipidemia and predict response to statin therapy. Relatively low NCSs concentrationsrepresent a specific problem for their quantification. This represents the additional reasonto conduct an extensive method validation for NCSs determination, as well as to resolvepre-analytical and analytical factors of influence. In order to contribute to a betterunderstanding of cholesterol metabolism and the statin effects on cholesterol homeostasis,the objectives of this study were: establishing and validating the method for NHSsdetermination; determination of NHSs concentrations in healthy subjects (CG) and CADpatients; determination of cholesterol homeostasis patterns and their association with basiclipid parameters and distribution of low-density lipoprotein subclasses (LDL) in examinedgroups, and dtermination of lipoprotein-associated phospholipase A2 concentration.The study included 31 healthy controls (CG), 32 statin-treated patients and 47statin-naive CAD patients. The NCSs concentrations and fatty acid (FA) profiles weredetermined by gas chromatography-flame ionization detection (GC-FID). Lipoproteinsubclasses were separated by gradient gel electrophoresis and lipoprotein-associatedphospholipase A2 concentration has been determined by ELISA assay...",
publisher = "Универзитет у Београду, Фармацеутски факултет",
journal = "Универзитет у Београду",
title = "Značaj određivanja markera sinteza i apsorpcije holesterola kod zdravih ispitanika i pacijenata sa ishemijskom bolešću srca",
url = "https://hdl.handle.net/21.15107/rcub_nardus_11251"
}

Gojković, T.. (2018). Značaj određivanja markera sinteza i apsorpcije holesterola kod zdravih ispitanika i pacijenata sa ishemijskom bolešću srca. in Универзитет у Београду
Универзитет у Београду, Фармацеутски факултет..
https://hdl.handle.net/21.15107/rcub_nardus_11251

Gojković T. Značaj određivanja markera sinteza i apsorpcije holesterola kod zdravih ispitanika i pacijenata sa ishemijskom bolešću srca. in Универзитет у Београду. 2018;.
https://hdl.handle.net/21.15107/rcub_nardus_11251 .

Gojković, Tamara, "Značaj određivanja markera sinteza i apsorpcije holesterola kod zdravih ispitanika i pacijenata sa ishemijskom bolešću srca" in Универзитет у Београду (2018),
https://hdl.handle.net/21.15107/rcub_nardus_11251 .

TY  - JOUR
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Spasojević-Kalimanovska, Vesna
AU  - Zeljković, Aleksandra
AU  - Vekić, Jelena
AU  - Arsenijević, Jelena
AU  - Đuričić, Ivana
AU  - Šobajić, Slađana
AU  - Jelić-Ivanović, Zorana
PY  - 2018
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3185
AB  - Introduction: Cholesterol homeostasis disruption contributes to the development of different pathologies. Non cholesterol sterols (NCSs) serve as cholesterol synthesis markers (desmosterol and lathosterol), and cholesterol absorption surrogate markers (campesterol, stigmasterol and beta-sitosterol). The study aimed to resolve certain new pre-analytical and analytical problems and ensure a reliable and validated method. Materials and methods: Method optimization, validation and stability studies were executed in human serum and plasma. Freeze-thaw cycles were done with and without antioxidant. Gas chromatography-mass spectrometer (GC-MS) was used for NCSs confirmation and plasticizer identification, while GC-flame ionization detector (GC-FID) was used for NCSs quantitation. Results: Infra-and inter-assay variabilities for all NCSs were 2.75-9.55% and 5.80-7.75% for plasma and 3.10-5.72% and 3.05-10.92% for serum, respectively. Recovery studies showed satisfactory percentage errors for all NCSs: 93.4-105.7% in plasma and 87.5-106.9 in serum. Derivatized samples were stable up to 7 days at 20 degrees C and derivatization yield was affected by presence of plasticizers. Fatty acid amids were identified as interfering plastic leachates. Statistically different NCSs concentrations were observed after the 1st freeze-thaw cycle, in antioxidant-free samples, and after the 4th cycle in antioxidant-enriched samples. Conclusions: All of the in-house procedures proved to be useful for minimizing the preanalytical and analytical variations, as proven by the validation results.
PB  - Elsevier Science BV, Amsterdam
T2  - Clinica Chimica Acta
T1  - Preanalytical and analytical challenges in gas chromatographic determination of cholesterol synthesis and absorption markers
VL  - 478
SP  - 74
EP  - 81
DO  - 10.1016/j.cca.2017.12.032
ER  - 

@article{
author = "Gojković, Tamara and Vladimirov, Sandra and Spasojević-Kalimanovska, Vesna and Zeljković, Aleksandra and Vekić, Jelena and Arsenijević, Jelena and Đuričić, Ivana and Šobajić, Slađana and Jelić-Ivanović, Zorana",
year = "2018",
abstract = "Introduction: Cholesterol homeostasis disruption contributes to the development of different pathologies. Non cholesterol sterols (NCSs) serve as cholesterol synthesis markers (desmosterol and lathosterol), and cholesterol absorption surrogate markers (campesterol, stigmasterol and beta-sitosterol). The study aimed to resolve certain new pre-analytical and analytical problems and ensure a reliable and validated method. Materials and methods: Method optimization, validation and stability studies were executed in human serum and plasma. Freeze-thaw cycles were done with and without antioxidant. Gas chromatography-mass spectrometer (GC-MS) was used for NCSs confirmation and plasticizer identification, while GC-flame ionization detector (GC-FID) was used for NCSs quantitation. Results: Infra-and inter-assay variabilities for all NCSs were 2.75-9.55% and 5.80-7.75% for plasma and 3.10-5.72% and 3.05-10.92% for serum, respectively. Recovery studies showed satisfactory percentage errors for all NCSs: 93.4-105.7% in plasma and 87.5-106.9 in serum. Derivatized samples were stable up to 7 days at 20 degrees C and derivatization yield was affected by presence of plasticizers. Fatty acid amids were identified as interfering plastic leachates. Statistically different NCSs concentrations were observed after the 1st freeze-thaw cycle, in antioxidant-free samples, and after the 4th cycle in antioxidant-enriched samples. Conclusions: All of the in-house procedures proved to be useful for minimizing the preanalytical and analytical variations, as proven by the validation results.",
publisher = "Elsevier Science BV, Amsterdam",
journal = "Clinica Chimica Acta",
title = "Preanalytical and analytical challenges in gas chromatographic determination of cholesterol synthesis and absorption markers",
volume = "478",
pages = "74-81",
doi = "10.1016/j.cca.2017.12.032"
}

Gojković, T., Vladimirov, S., Spasojević-Kalimanovska, V., Zeljković, A., Vekić, J., Arsenijević, J., Đuričić, I., Šobajić, S.,& Jelić-Ivanović, Z.. (2018). Preanalytical and analytical challenges in gas chromatographic determination of cholesterol synthesis and absorption markers. in Clinica Chimica Acta
Elsevier Science BV, Amsterdam., 478, 74-81.
https://doi.org/10.1016/j.cca.2017.12.032

Gojković T, Vladimirov S, Spasojević-Kalimanovska V, Zeljković A, Vekić J, Arsenijević J, Đuričić I, Šobajić S, Jelić-Ivanović Z. Preanalytical and analytical challenges in gas chromatographic determination of cholesterol synthesis and absorption markers. in Clinica Chimica Acta. 2018;478:74-81.
doi:10.1016/j.cca.2017.12.032 .

Gojković, Tamara, Vladimirov, Sandra, Spasojević-Kalimanovska, Vesna, Zeljković, Aleksandra, Vekić, Jelena, Arsenijević, Jelena, Đuričić, Ivana, Šobajić, Slađana, Jelić-Ivanović, Zorana, "Preanalytical and analytical challenges in gas chromatographic determination of cholesterol synthesis and absorption markers" in Clinica Chimica Acta, 478 (2018):74-81,
https://doi.org/10.1016/j.cca.2017.12.032 . .

TY  - CONF
AU  - Gojković, Tamara
AU  - Vladimirov, Sandra
AU  - Spasojević-Kalimanovska, Vesna
AU  - Zeljković, Aleksandra
AU  - Vekić, Jelena
AU  - Miljković, Milica
AU  - Stefanović, Aleksandra
AU  - Kalimanovska-Oštrić, Dimitra
AU  - Đuričić, Ivana
AU  - Jelić-Ivanović, Zorana
PY  - 2018
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3071
PB  - Elsevier Ireland Ltd, Clare
C3  - Atherosclerosis
T1  - Association of statin therapy with plasma fatty acids profile and lipoprotein-associated phospholipase A2 concentration
VL  - 275
SP  - e60
EP  - e60
DO  - 10.1016/j.atherosclerosis.2018.06.164
ER  - 

@conference{
author = "Gojković, Tamara and Vladimirov, Sandra and Spasojević-Kalimanovska, Vesna and Zeljković, Aleksandra and Vekić, Jelena and Miljković, Milica and Stefanović, Aleksandra and Kalimanovska-Oštrić, Dimitra and Đuričić, Ivana and Jelić-Ivanović, Zorana",
year = "2018",
publisher = "Elsevier Ireland Ltd, Clare",
journal = "Atherosclerosis",
title = "Association of statin therapy with plasma fatty acids profile and lipoprotein-associated phospholipase A2 concentration",
volume = "275",
pages = "e60-e60",
doi = "10.1016/j.atherosclerosis.2018.06.164"
}

Gojković, T., Vladimirov, S., Spasojević-Kalimanovska, V., Zeljković, A., Vekić, J., Miljković, M., Stefanović, A., Kalimanovska-Oštrić, D., Đuričić, I.,& Jelić-Ivanović, Z.. (2018). Association of statin therapy with plasma fatty acids profile and lipoprotein-associated phospholipase A2 concentration. in Atherosclerosis
Elsevier Ireland Ltd, Clare., 275, e60-e60.
https://doi.org/10.1016/j.atherosclerosis.2018.06.164

Gojković T, Vladimirov S, Spasojević-Kalimanovska V, Zeljković A, Vekić J, Miljković M, Stefanović A, Kalimanovska-Oštrić D, Đuričić I, Jelić-Ivanović Z. Association of statin therapy with plasma fatty acids profile and lipoprotein-associated phospholipase A2 concentration. in Atherosclerosis. 2018;275:e60-e60.
doi:10.1016/j.atherosclerosis.2018.06.164 .

Gojković, Tamara, Vladimirov, Sandra, Spasojević-Kalimanovska, Vesna, Zeljković, Aleksandra, Vekić, Jelena, Miljković, Milica, Stefanović, Aleksandra, Kalimanovska-Oštrić, Dimitra, Đuričić, Ivana, Jelić-Ivanović, Zorana, "Association of statin therapy with plasma fatty acids profile and lipoprotein-associated phospholipase A2 concentration" in Atherosclerosis, 275 (2018):e60-e60,
https://doi.org/10.1016/j.atherosclerosis.2018.06.164 . .

TY  - CONF
AU  - Vladimirov, Sandra
AU  - Gojković, Tamara
AU  - Zeljković, Aleksandra
AU  - Jelić-Ivanović, Zorana
AU  - Miljković, Milica
AU  - Bogavac-Stanojević, Nataša
AU  - Stepanović, Željka
AU  - Spasojević-Kalimanovska, Vesna
PY  - 2018
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3073
PB  - Elsevier Ireland Ltd, Clare
C3  - Atherosclerosis
T1  - Association of cholesterol homeostasis parameters with cardiovascular risk factors in healthy population
VL  - 275
SP  - e86
EP  - e86
DO  - 10.1016/j.atherosclerosis.2018.06.238
ER  - 

@conference{
author = "Vladimirov, Sandra and Gojković, Tamara and Zeljković, Aleksandra and Jelić-Ivanović, Zorana and Miljković, Milica and Bogavac-Stanojević, Nataša and Stepanović, Željka and Spasojević-Kalimanovska, Vesna",
year = "2018",
publisher = "Elsevier Ireland Ltd, Clare",
journal = "Atherosclerosis",
title = "Association of cholesterol homeostasis parameters with cardiovascular risk factors in healthy population",
volume = "275",
pages = "e86-e86",
doi = "10.1016/j.atherosclerosis.2018.06.238"
}

Vladimirov, S., Gojković, T., Zeljković, A., Jelić-Ivanović, Z., Miljković, M., Bogavac-Stanojević, N., Stepanović, Ž.,& Spasojević-Kalimanovska, V.. (2018). Association of cholesterol homeostasis parameters with cardiovascular risk factors in healthy population. in Atherosclerosis
Elsevier Ireland Ltd, Clare., 275, e86-e86.
https://doi.org/10.1016/j.atherosclerosis.2018.06.238

Vladimirov S, Gojković T, Zeljković A, Jelić-Ivanović Z, Miljković M, Bogavac-Stanojević N, Stepanović Ž, Spasojević-Kalimanovska V. Association of cholesterol homeostasis parameters with cardiovascular risk factors in healthy population. in Atherosclerosis. 2018;275:e86-e86.
doi:10.1016/j.atherosclerosis.2018.06.238 .

Vladimirov, Sandra, Gojković, Tamara, Zeljković, Aleksandra, Jelić-Ivanović, Zorana, Miljković, Milica, Bogavac-Stanojević, Nataša, Stepanović, Željka, Spasojević-Kalimanovska, Vesna, "Association of cholesterol homeostasis parameters with cardiovascular risk factors in healthy population" in Atherosclerosis, 275 (2018):e86-e86,
https://doi.org/10.1016/j.atherosclerosis.2018.06.238 . .

TY  - JOUR
AU  - Banjac, Lidija
AU  - Banjac, Goran
AU  - Kotur-Stevuljević, Jelena
AU  - Spasojević-Kalimanovska, Vesna
AU  - Gojković, Tamara
AU  - Bogavac-Stanojević, Nataša
AU  - Jelić-Ivanović, Zorana
AU  - Banjac, Gorica
PY  - 2018
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3135
AB  - Premature infants are susceptible to oxidative stress that causes neonatal disease such as retinopathy of prematurity (ROP). Oxidative stress is an imbalance between the production of pro-oxidants and the ability of the body to detoxify their harmful effects by antioxidants. The proliferative phase 2 ROP occurs at around 33(rd) postmenstrual week (pmw). The purpose of our study was to evaluate the pro-oxidant/antioxidant status in preterm infants at 33rd pmw. The study included 59 premature infants. ROP was classified according to the International Classification of Retinopathy of Prematurity. Total oxidative status (TOS), total antioxidant status (TAS), malondialdehyde (MDA) and paraoxonase 1 (PON1) activity were determined spectrophotometrically. The values of the pro-oxidants TOS and MDA were significantly higher in infants with ROP as compared to infants without ROP (p lt 0.05 both). There were no significant differences in the values of TAS and PON1 between the infants with and without ROP. According to study results, TOS and MDA are good markers of oxidative stress, whereas TAS and PON1 activity are unreliable in assessing antioxidant protection.
PB  - Sestre Milosrdnice Univ Hospital, Zagreb
T2  - Acta Clinica Croatica
T1  - Pro-oxidants and antioxidants in retinopathy of prematurity [Pro-oksidansi i antioksidansi u prematurnoj retinopatiji]
VL  - 57
IS  - 3
SP  - 458
EP  - 463
DO  - 10.20471/acc.2018.57.03.08
ER  - 

@article{
author = "Banjac, Lidija and Banjac, Goran and Kotur-Stevuljević, Jelena and Spasojević-Kalimanovska, Vesna and Gojković, Tamara and Bogavac-Stanojević, Nataša and Jelić-Ivanović, Zorana and Banjac, Gorica",
year = "2018",
abstract = "Premature infants are susceptible to oxidative stress that causes neonatal disease such as retinopathy of prematurity (ROP). Oxidative stress is an imbalance between the production of pro-oxidants and the ability of the body to detoxify their harmful effects by antioxidants. The proliferative phase 2 ROP occurs at around 33(rd) postmenstrual week (pmw). The purpose of our study was to evaluate the pro-oxidant/antioxidant status in preterm infants at 33rd pmw. The study included 59 premature infants. ROP was classified according to the International Classification of Retinopathy of Prematurity. Total oxidative status (TOS), total antioxidant status (TAS), malondialdehyde (MDA) and paraoxonase 1 (PON1) activity were determined spectrophotometrically. The values of the pro-oxidants TOS and MDA were significantly higher in infants with ROP as compared to infants without ROP (p lt 0.05 both). There were no significant differences in the values of TAS and PON1 between the infants with and without ROP. According to study results, TOS and MDA are good markers of oxidative stress, whereas TAS and PON1 activity are unreliable in assessing antioxidant protection.",
publisher = "Sestre Milosrdnice Univ Hospital, Zagreb",
journal = "Acta Clinica Croatica",
title = "Pro-oxidants and antioxidants in retinopathy of prematurity [Pro-oksidansi i antioksidansi u prematurnoj retinopatiji]",
volume = "57",
number = "3",
pages = "458-463",
doi = "10.20471/acc.2018.57.03.08"
}

Banjac, L., Banjac, G., Kotur-Stevuljević, J., Spasojević-Kalimanovska, V., Gojković, T., Bogavac-Stanojević, N., Jelić-Ivanović, Z.,& Banjac, G.. (2018). Pro-oxidants and antioxidants in retinopathy of prematurity [Pro-oksidansi i antioksidansi u prematurnoj retinopatiji]. in Acta Clinica Croatica
Sestre Milosrdnice Univ Hospital, Zagreb., 57(3), 458-463.
https://doi.org/10.20471/acc.2018.57.03.08

Banjac L, Banjac G, Kotur-Stevuljević J, Spasojević-Kalimanovska V, Gojković T, Bogavac-Stanojević N, Jelić-Ivanović Z, Banjac G. Pro-oxidants and antioxidants in retinopathy of prematurity [Pro-oksidansi i antioksidansi u prematurnoj retinopatiji]. in Acta Clinica Croatica. 2018;57(3):458-463.
doi:10.20471/acc.2018.57.03.08 .

Banjac, Lidija, Banjac, Goran, Kotur-Stevuljević, Jelena, Spasojević-Kalimanovska, Vesna, Gojković, Tamara, Bogavac-Stanojević, Nataša, Jelić-Ivanović, Zorana, Banjac, Gorica, "Pro-oxidants and antioxidants in retinopathy of prematurity [Pro-oksidansi i antioksidansi u prematurnoj retinopatiji]" in Acta Clinica Croatica, 57, no. 3 (2018):458-463,
https://doi.org/10.20471/acc.2018.57.03.08 . .