TY  - JOUR
AU  - Lalosević, Miodrag
AU  - Kotur-Stevuljević, Jelena
AU  - Vekić, Jelena
AU  - Rizzo, Manfredi
AU  - Kosanović, Tijana
AU  - Blagojević-Perović, Ivana
AU  - Zeljković, Aleksandra
AU  - Jeremić, Danilo
AU  - Mihajlović, Marija
AU  - Petković, Aleksa
AU  - Hajdarpasić, Lejla
AU  - Đorđević, Marjana
AU  - Dobrilović, Violeta
AU  - Erceg, Sanja
AU  - Vujčić, Sanja
AU  - Marjanović, Jelena
AU  - Jovanović-Milijić, Jovana
AU  - Saponjski, Jovica
AU  - Bogavac-Stanojević, Nataša
PY  - 2022
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/4335
AB  - Background. Metabolic alterations, particularly disorders of lipoprotein metabolism in COVID-19, may affect the course and outcome of the disease. This study aims at evaluating the lipoprotein profile and redox status in SARS-CoV-2 infected patients with different pneumonia severity and their association with lethal outcomes. Methods. The prospective cohort study was performed on 98 COVID-19 patients with mild, moderate, and severe pneumonia. Lipid and inflammatory parameters, lipoprotein subclasses, and redox status biomarkers were determined at the study entry and after one week. Results. Compared to patients with mild and moderate pneumonia, severely ill patients had higher oxidised low-density lipoprotein (oxLDL) and malondialdehyde levels and lower high-density lipoprotein cholesterol (HDL-C) concentrations and paraoxonase 1 activity. Reduction in the proportion of large HDL 2a subclasses with a concomitant increase in the proportion of smallest HDL 3c and small dense LDL (sdLDL) particles was observed in patients with severe disease during the time. However, these changes were reversed in the mild and moderate groups. The results showed a positive association between changes in oxLDL and total antioxidative status. However, prooxidants and antioxidants in plasma were lower in patients with lethal outcomes. Conclusions. Increased levels of oxLDL and sdLDL particles may contribute to the severity of COVID-19. The role of oxidative stress should be clarified in further studies, mainly its association with lethal outcomes.
PB  - Hindawi Limited
T2  - Oxidative Medicine and Cellular Longevity
T1  - Alteration in Redox Status and Lipoprotein Profile in COVID-19 Patients with Mild, Moderate, and Severe Pneumonia
VL  - 2022
DO  - 10.1155/2022/8067857
ER  - 

@article{
author = "Lalosević, Miodrag and Kotur-Stevuljević, Jelena and Vekić, Jelena and Rizzo, Manfredi and Kosanović, Tijana and Blagojević-Perović, Ivana and Zeljković, Aleksandra and Jeremić, Danilo and Mihajlović, Marija and Petković, Aleksa and Hajdarpasić, Lejla and Đorđević, Marjana and Dobrilović, Violeta and Erceg, Sanja and Vujčić, Sanja and Marjanović, Jelena and Jovanović-Milijić, Jovana and Saponjski, Jovica and Bogavac-Stanojević, Nataša",
year = "2022",
abstract = "Background. Metabolic alterations, particularly disorders of lipoprotein metabolism in COVID-19, may affect the course and outcome of the disease. This study aims at evaluating the lipoprotein profile and redox status in SARS-CoV-2 infected patients with different pneumonia severity and their association with lethal outcomes. Methods. The prospective cohort study was performed on 98 COVID-19 patients with mild, moderate, and severe pneumonia. Lipid and inflammatory parameters, lipoprotein subclasses, and redox status biomarkers were determined at the study entry and after one week. Results. Compared to patients with mild and moderate pneumonia, severely ill patients had higher oxidised low-density lipoprotein (oxLDL) and malondialdehyde levels and lower high-density lipoprotein cholesterol (HDL-C) concentrations and paraoxonase 1 activity. Reduction in the proportion of large HDL 2a subclasses with a concomitant increase in the proportion of smallest HDL 3c and small dense LDL (sdLDL) particles was observed in patients with severe disease during the time. However, these changes were reversed in the mild and moderate groups. The results showed a positive association between changes in oxLDL and total antioxidative status. However, prooxidants and antioxidants in plasma were lower in patients with lethal outcomes. Conclusions. Increased levels of oxLDL and sdLDL particles may contribute to the severity of COVID-19. The role of oxidative stress should be clarified in further studies, mainly its association with lethal outcomes.",
publisher = "Hindawi Limited",
journal = "Oxidative Medicine and Cellular Longevity",
title = "Alteration in Redox Status and Lipoprotein Profile in COVID-19 Patients with Mild, Moderate, and Severe Pneumonia",
volume = "2022",
doi = "10.1155/2022/8067857"
}

Lalosević, M., Kotur-Stevuljević, J., Vekić, J., Rizzo, M., Kosanović, T., Blagojević-Perović, I., Zeljković, A., Jeremić, D., Mihajlović, M., Petković, A., Hajdarpasić, L., Đorđević, M., Dobrilović, V., Erceg, S., Vujčić, S., Marjanović, J., Jovanović-Milijić, J., Saponjski, J.,& Bogavac-Stanojević, N.. (2022). Alteration in Redox Status and Lipoprotein Profile in COVID-19 Patients with Mild, Moderate, and Severe Pneumonia. in Oxidative Medicine and Cellular Longevity
Hindawi Limited., 2022.
https://doi.org/10.1155/2022/8067857

Lalosević M, Kotur-Stevuljević J, Vekić J, Rizzo M, Kosanović T, Blagojević-Perović I, Zeljković A, Jeremić D, Mihajlović M, Petković A, Hajdarpasić L, Đorđević M, Dobrilović V, Erceg S, Vujčić S, Marjanović J, Jovanović-Milijić J, Saponjski J, Bogavac-Stanojević N. Alteration in Redox Status and Lipoprotein Profile in COVID-19 Patients with Mild, Moderate, and Severe Pneumonia. in Oxidative Medicine and Cellular Longevity. 2022;2022.
doi:10.1155/2022/8067857 .

Lalosević, Miodrag, Kotur-Stevuljević, Jelena, Vekić, Jelena, Rizzo, Manfredi, Kosanović, Tijana, Blagojević-Perović, Ivana, Zeljković, Aleksandra, Jeremić, Danilo, Mihajlović, Marija, Petković, Aleksa, Hajdarpasić, Lejla, Đorđević, Marjana, Dobrilović, Violeta, Erceg, Sanja, Vujčić, Sanja, Marjanović, Jelena, Jovanović-Milijić, Jovana, Saponjski, Jovica, Bogavac-Stanojević, Nataša, "Alteration in Redox Status and Lipoprotein Profile in COVID-19 Patients with Mild, Moderate, and Severe Pneumonia" in Oxidative Medicine and Cellular Longevity, 2022 (2022),
https://doi.org/10.1155/2022/8067857 . .

TY  - JOUR
AU  - Todorović, Zoran B.
AU  - Ranđelović, Ljiljana M.
AU  - Marjanović, Jelena Z.
AU  - Todorović, Vanja
AU  - Cakić, Milorad
AU  - Cvetković, Olga G.
PY  - 2014
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2119
AB  - In this study, the nature of the association of heavy metals (Fe, Co, Ni, Cu, Cd, Pb, Mn, and Zn) in sediments of the recent reservoir 'Barje' (Leskovac, Serbia) was investigated. The aim was to make the identification of their substrates, as well as to define the external factors (hydrological and anthropogenic affecting their distribution) which will contribute to a better understanding of the interactions that take place in the reservoir and predict the mobility of the investigated heavy metals. Chemical distribution of heavy metals was tested by using the method of sequential extraction and by data processing using statistical methods such as correlation, cluster and factor analysis. Based on the obtained results it can be concluded that major substrates of heavy metals are in the residual immobile fraction (Fe, Zn and Ni). Since the accumulation has a small organic substance content, Fe and Mn oxides are the most important binding substrates of heavy metals. Although it was determined that lead and cadmium are of the carbonate nature, their concentrations in the reservoir are negligible.
AB  - Cilj ovog rada je da se ispitivanjem prirode asocijacija teških metala (Fe, Co, Ni, Cu, Cd, Pb, Mn, Zn) izvrši identifikacija njihovih supstrata u akumulaciji 'Barje' (Leskovac, Srbija), kao i da se definišu spoljni faktori (hidrološki i antropogeni koji utiču na njihovu raspodelu) što će doprineti boljem razumevanju interakcija koje se odigravaju u akumulaciji i prognozu mobilnosti na osnovu toga. Hemijska raspodela teških metala ispitana je korišćenjem metode sekvencijalne ekstrakcije i obradom dobijenih podataka statističkim metodama kao što su korelaciona, klaster i faktorska analiza. Na osnovu dobijenih rezultata može se zaključiti da se većina teških metala nalazi u rezidualnoj nepokretnoj frakciji (Fe, Zn i Ni). Zato što je u akumulaciji mali sadržaj organske supstance oksidi gvožđa i mangana su najznačajniji supstrati za vezivanje teških metala. Iako je utvrđeno da je olovo i kadmijum karbonatne prirode njihove koncentracije u akumulaciji su zanemarljivo male.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Savremene tehnologije
T1  - The assessment and distribution of heavy metals in surface sediments from the reservoir 'Barje': Serbia
T1  - Procena sadržaja i raspodele teških metala u površinskom sedimentu akumulacije 'Barje' - Srbija
VL  - 3
IS  - 2
SP  - 85
EP  - 95
DO  - 10.5937/savteh1402085T
ER  - 

@article{
author = "Todorović, Zoran B. and Ranđelović, Ljiljana M. and Marjanović, Jelena Z. and Todorović, Vanja and Cakić, Milorad and Cvetković, Olga G.",
year = "2014",
abstract = "In this study, the nature of the association of heavy metals (Fe, Co, Ni, Cu, Cd, Pb, Mn, and Zn) in sediments of the recent reservoir 'Barje' (Leskovac, Serbia) was investigated. The aim was to make the identification of their substrates, as well as to define the external factors (hydrological and anthropogenic affecting their distribution) which will contribute to a better understanding of the interactions that take place in the reservoir and predict the mobility of the investigated heavy metals. Chemical distribution of heavy metals was tested by using the method of sequential extraction and by data processing using statistical methods such as correlation, cluster and factor analysis. Based on the obtained results it can be concluded that major substrates of heavy metals are in the residual immobile fraction (Fe, Zn and Ni). Since the accumulation has a small organic substance content, Fe and Mn oxides are the most important binding substrates of heavy metals. Although it was determined that lead and cadmium are of the carbonate nature, their concentrations in the reservoir are negligible., Cilj ovog rada je da se ispitivanjem prirode asocijacija teških metala (Fe, Co, Ni, Cu, Cd, Pb, Mn, Zn) izvrši identifikacija njihovih supstrata u akumulaciji 'Barje' (Leskovac, Srbija), kao i da se definišu spoljni faktori (hidrološki i antropogeni koji utiču na njihovu raspodelu) što će doprineti boljem razumevanju interakcija koje se odigravaju u akumulaciji i prognozu mobilnosti na osnovu toga. Hemijska raspodela teških metala ispitana je korišćenjem metode sekvencijalne ekstrakcije i obradom dobijenih podataka statističkim metodama kao što su korelaciona, klaster i faktorska analiza. Na osnovu dobijenih rezultata može se zaključiti da se većina teških metala nalazi u rezidualnoj nepokretnoj frakciji (Fe, Zn i Ni). Zato što je u akumulaciji mali sadržaj organske supstance oksidi gvožđa i mangana su najznačajniji supstrati za vezivanje teških metala. Iako je utvrđeno da je olovo i kadmijum karbonatne prirode njihove koncentracije u akumulaciji su zanemarljivo male.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Savremene tehnologije",
title = "The assessment and distribution of heavy metals in surface sediments from the reservoir 'Barje': Serbia, Procena sadržaja i raspodele teških metala u površinskom sedimentu akumulacije 'Barje' - Srbija",
volume = "3",
number = "2",
pages = "85-95",
doi = "10.5937/savteh1402085T"
}

Todorović, Z. B., Ranđelović, L. M., Marjanović, J. Z., Todorović, V., Cakić, M.,& Cvetković, O. G.. (2014). The assessment and distribution of heavy metals in surface sediments from the reservoir 'Barje': Serbia. in Savremene tehnologije
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 3(2), 85-95.
https://doi.org/10.5937/savteh1402085T

Todorović ZB, Ranđelović LM, Marjanović JZ, Todorović V, Cakić M, Cvetković OG. The assessment and distribution of heavy metals in surface sediments from the reservoir 'Barje': Serbia. in Savremene tehnologije. 2014;3(2):85-95.
doi:10.5937/savteh1402085T .

Todorović, Zoran B., Ranđelović, Ljiljana M., Marjanović, Jelena Z., Todorović, Vanja, Cakić, Milorad, Cvetković, Olga G., "The assessment and distribution of heavy metals in surface sediments from the reservoir 'Barje': Serbia" in Savremene tehnologije, 3, no. 2 (2014):85-95,
https://doi.org/10.5937/savteh1402085T . .