TY  - JOUR
AU  - Belić, Milica
AU  - Sopić, Miron
AU  - Roksandić-Milenković, Marina
AU  - Ćeriman, Vesna
AU  - Guzonjić, Azra
AU  - Vukašinović, Aleksandra
AU  - Ostanek, Barbara
AU  - Dimić, Nemanja
AU  - Jovanović, Dragana
AU  - Kotur-Stevuljević, Jelena
PY  - 2023
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5387
AB  - Lung cancer (LC) is the second most common malignancy and leading cause of cancer death. The potential "culprit" for local and systemic telomere shortening in LC patients is oxidative stress. We investigated the correlation between the peripheral blood leukocyte (PBL) telomere length (TL) and the presence/severity of LC and oxidative stress, and its usefulness as LC diagnostic marker. PBL TL was measured in 89 LC patients and 83 healthy subjects using the modified Cawthon RTq-PCR method. The relative PBL TL, found to be a potential diagnostic marker for LC with very good accuracy (P < 0.001), was significantly shorter in patients compared to the control group (CG) (P < 0.001). Significantly shorter telomeres were found in patients with LC TNM stage IV than in patients with stages I-III (P = 0.014), in patients without therapy compared to those on therapy (P = 0.008), and in patients with partial response and stable/progressive disease compared to those with complete response (P = 0.039). The total oxidant status (TOS), advanced oxidation protein products (AOPP), prooxidant-antioxidant balance (PAB) and C-reactive protein (CRP) were significantly higher in patients compared to CG (P < 0.001) and correlated negatively with TL in both patients and CG (P < 0.001). PCA showed a relation between PAB and TL, and between the EGFR status and TL. Oxidative stress and PBL telomere shortening are probably associated with LC development and progression.
PB  - Charles University, Czech Republic
T2  - Folia biologica
T1  - Correlation of Short Leukocyte Telomeres and Oxidative
Stress with the Presence and Severity of Lung Cancer
Explored by Principal Component Analysis
VL  - 69
IS  - 2
SP  - 59
EP  - 68
DO  - 10.14712/fb2023069020059
ER  - 

@article{
author = "Belić, Milica and Sopić, Miron and Roksandić-Milenković, Marina and Ćeriman, Vesna and Guzonjić, Azra and Vukašinović, Aleksandra and Ostanek, Barbara and Dimić, Nemanja and Jovanović, Dragana and Kotur-Stevuljević, Jelena",
year = "2023",
abstract = "Lung cancer (LC) is the second most common malignancy and leading cause of cancer death. The potential "culprit" for local and systemic telomere shortening in LC patients is oxidative stress. We investigated the correlation between the peripheral blood leukocyte (PBL) telomere length (TL) and the presence/severity of LC and oxidative stress, and its usefulness as LC diagnostic marker. PBL TL was measured in 89 LC patients and 83 healthy subjects using the modified Cawthon RTq-PCR method. The relative PBL TL, found to be a potential diagnostic marker for LC with very good accuracy (P < 0.001), was significantly shorter in patients compared to the control group (CG) (P < 0.001). Significantly shorter telomeres were found in patients with LC TNM stage IV than in patients with stages I-III (P = 0.014), in patients without therapy compared to those on therapy (P = 0.008), and in patients with partial response and stable/progressive disease compared to those with complete response (P = 0.039). The total oxidant status (TOS), advanced oxidation protein products (AOPP), prooxidant-antioxidant balance (PAB) and C-reactive protein (CRP) were significantly higher in patients compared to CG (P < 0.001) and correlated negatively with TL in both patients and CG (P < 0.001). PCA showed a relation between PAB and TL, and between the EGFR status and TL. Oxidative stress and PBL telomere shortening are probably associated with LC development and progression.",
publisher = "Charles University, Czech Republic",
journal = "Folia biologica",
title = "Correlation of Short Leukocyte Telomeres and Oxidative
Stress with the Presence and Severity of Lung Cancer
Explored by Principal Component Analysis",
volume = "69",
number = "2",
pages = "59-68",
doi = "10.14712/fb2023069020059"
}

Belić, M., Sopić, M., Roksandić-Milenković, M., Ćeriman, V., Guzonjić, A., Vukašinović, A., Ostanek, B., Dimić, N., Jovanović, D.,& Kotur-Stevuljević, J.. (2023). Correlation of Short Leukocyte Telomeres and Oxidative
Stress with the Presence and Severity of Lung Cancer
Explored by Principal Component Analysis. in Folia biologica
Charles University, Czech Republic., 69(2), 59-68.
https://doi.org/10.14712/fb2023069020059

Belić M, Sopić M, Roksandić-Milenković M, Ćeriman V, Guzonjić A, Vukašinović A, Ostanek B, Dimić N, Jovanović D, Kotur-Stevuljević J. Correlation of Short Leukocyte Telomeres and Oxidative
Stress with the Presence and Severity of Lung Cancer
Explored by Principal Component Analysis. in Folia biologica. 2023;69(2):59-68.
doi:10.14712/fb2023069020059 .

Belić, Milica, Sopić, Miron, Roksandić-Milenković, Marina, Ćeriman, Vesna, Guzonjić, Azra, Vukašinović, Aleksandra, Ostanek, Barbara, Dimić, Nemanja, Jovanović, Dragana, Kotur-Stevuljević, Jelena, "Correlation of Short Leukocyte Telomeres and Oxidative
Stress with the Presence and Severity of Lung Cancer
Explored by Principal Component Analysis" in Folia biologica, 69, no. 2 (2023):59-68,
https://doi.org/10.14712/fb2023069020059 . .

TY  - JOUR
AU  - Jovanović, Dragana
AU  - Roksandić-Milenković, Marina
AU  - Kotur-Stevuljević, Jelena
AU  - Ceriman, Vesna
AU  - Vukanić, Ivana
AU  - Samardžić, Natalija
AU  - Popević, Spasoje
AU  - Ilić, Branislav
AU  - Gajić, Milija
AU  - Simon, Marioara
AU  - Simon, Ioan
AU  - Spasojević-Kalimanovska, Vesna
AU  - Belić, Milica
AU  - Mirkov, Damjan
AU  - Šumarac, Zorica
AU  - Milenković, Vladislav
PY  - 2019
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3341
AB  - Background: The objective of this prospective study was to evaluate whether soluble programmed cell death-1/programmed cell death-ligand 1 (PD-1/PD-L1) and serum amyloid A1 (SAA1) are potential diagnostic, predictive or prognostic biomarkers in lung cancer. Methods: Lung cancer patients (n=115) with advanced metastatic disease, 101 with non-small cell lung cancer, NSCLC (77 EGFR wild-type NSCLC patients on chemotherapy, 15 EGFR mutation positive adenocarcinoma patients, 9 patients with mPD-L1 Expression >= 50% NSCLC - responders to immunotherapy), and 14 patients with small cell lung cancer (SCLC) were examined. ELISA method was used to determine sPD-L1 and SAA1 concentrations in patients' plasma. Results: Significantly higher blood concentrations of sPD-L1 and SAA1 were noted in lung cancer patients compared with a healthy control group. In PD-L1 + NSCLC patients, a significantly higher sPD-L1 level was noticed compared to any other lung cancer subgroup, as well as the highest average SAA1 value compared to other subgroups. Conclusions: It seems that sPD-1/PD-L1 might be a potential biomarker, prognostic and/or predictive, particularly in patients treated with immunotherapy. Serum amyloid A1 has potential to act as a good predictor of patients' survival, as well as a biomarker of a more advanced disease, with possibly good capability to predict the course of disease measured at different time points.
PB  - Društvo medicinskih biohemičara Srbije, Beograd i Versita
T2  - Journal of Medical Biochemistry
T1  - Soluble sPD-L1 and serum amyloid A1 as potential biomarkers for lung cancer
VL  - 38
IS  - 3
SP  - 332
EP  - 341
DO  - 10.2478/jomb-2018-0036
ER  - 

@article{
author = "Jovanović, Dragana and Roksandić-Milenković, Marina and Kotur-Stevuljević, Jelena and Ceriman, Vesna and Vukanić, Ivana and Samardžić, Natalija and Popević, Spasoje and Ilić, Branislav and Gajić, Milija and Simon, Marioara and Simon, Ioan and Spasojević-Kalimanovska, Vesna and Belić, Milica and Mirkov, Damjan and Šumarac, Zorica and Milenković, Vladislav",
year = "2019",
abstract = "Background: The objective of this prospective study was to evaluate whether soluble programmed cell death-1/programmed cell death-ligand 1 (PD-1/PD-L1) and serum amyloid A1 (SAA1) are potential diagnostic, predictive or prognostic biomarkers in lung cancer. Methods: Lung cancer patients (n=115) with advanced metastatic disease, 101 with non-small cell lung cancer, NSCLC (77 EGFR wild-type NSCLC patients on chemotherapy, 15 EGFR mutation positive adenocarcinoma patients, 9 patients with mPD-L1 Expression >= 50% NSCLC - responders to immunotherapy), and 14 patients with small cell lung cancer (SCLC) were examined. ELISA method was used to determine sPD-L1 and SAA1 concentrations in patients' plasma. Results: Significantly higher blood concentrations of sPD-L1 and SAA1 were noted in lung cancer patients compared with a healthy control group. In PD-L1 + NSCLC patients, a significantly higher sPD-L1 level was noticed compared to any other lung cancer subgroup, as well as the highest average SAA1 value compared to other subgroups. Conclusions: It seems that sPD-1/PD-L1 might be a potential biomarker, prognostic and/or predictive, particularly in patients treated with immunotherapy. Serum amyloid A1 has potential to act as a good predictor of patients' survival, as well as a biomarker of a more advanced disease, with possibly good capability to predict the course of disease measured at different time points.",
publisher = "Društvo medicinskih biohemičara Srbije, Beograd i Versita",
journal = "Journal of Medical Biochemistry",
title = "Soluble sPD-L1 and serum amyloid A1 as potential biomarkers for lung cancer",
volume = "38",
number = "3",
pages = "332-341",
doi = "10.2478/jomb-2018-0036"
}

Jovanović, D., Roksandić-Milenković, M., Kotur-Stevuljević, J., Ceriman, V., Vukanić, I., Samardžić, N., Popević, S., Ilić, B., Gajić, M., Simon, M., Simon, I., Spasojević-Kalimanovska, V., Belić, M., Mirkov, D., Šumarac, Z.,& Milenković, V.. (2019). Soluble sPD-L1 and serum amyloid A1 as potential biomarkers for lung cancer. in Journal of Medical Biochemistry
Društvo medicinskih biohemičara Srbije, Beograd i Versita., 38(3), 332-341.
https://doi.org/10.2478/jomb-2018-0036

Jovanović D, Roksandić-Milenković M, Kotur-Stevuljević J, Ceriman V, Vukanić I, Samardžić N, Popević S, Ilić B, Gajić M, Simon M, Simon I, Spasojević-Kalimanovska V, Belić M, Mirkov D, Šumarac Z, Milenković V. Soluble sPD-L1 and serum amyloid A1 as potential biomarkers for lung cancer. in Journal of Medical Biochemistry. 2019;38(3):332-341.
doi:10.2478/jomb-2018-0036 .

Jovanović, Dragana, Roksandić-Milenković, Marina, Kotur-Stevuljević, Jelena, Ceriman, Vesna, Vukanić, Ivana, Samardžić, Natalija, Popević, Spasoje, Ilić, Branislav, Gajić, Milija, Simon, Marioara, Simon, Ioan, Spasojević-Kalimanovska, Vesna, Belić, Milica, Mirkov, Damjan, Šumarac, Zorica, Milenković, Vladislav, "Soluble sPD-L1 and serum amyloid A1 as potential biomarkers for lung cancer" in Journal of Medical Biochemistry, 38, no. 3 (2019):332-341,
https://doi.org/10.2478/jomb-2018-0036 . .

TY  - JOUR
AU  - Jovanović, Dragana
AU  - Milenković, Marina
AU  - Kotur-Stevuljević, Jelena
AU  - Marković, Jelena
AU  - Ceriman, Vesna
AU  - Kontić, Milica
AU  - Skodrić-Trifunović, Vesna
PY  - 2018
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3136
AB  - Background: Idiopathic pulmonary fibrosis (IPF) has common risk factors with cancer and significant similarities in the pathobiology process, both diseases having poor outcomes. Immune checkpoint PD-L1 has become the target of checkpoint inhibitory therapy that unleashes antitumor T cells and has revolutionized cancer treatment. This is a pilot study exploring membrane immune checkpoint PD-L1 expression in human IPF lung tissue samples and its soluble form, soluble PD-L1 (sPD-L1) plasma concentrations in IPF patients, in order to investigate potential role of PD-L1 as an IPF biomarker. Methods: Twelve human IPF lung tissue samples (formalin-fixed, paraffin-embedded) obtained by surgical biopsy, have been tested for PD-L1 expression by PD-L1 IHC 22C3 pharmDx assay, while plasma samples for examination of sPD-L1 forms, PD-L1 (B7-H1/CD274) blood concentration, originated from 23 patients with IPE who did not undergo surgical biopsy. Results: Membrane PD-L1 expression in IPF lung tissue samples was positive to overexpression of PD-L1 in 9 samples out of 12. Only very few cells in the interstitium have shown a discrete PD-L1 expression, but not of a membrane type. As for sPD-L1 forms, we have found elevated concentrations of sPD-L1 in the serum of IPF patients 314.3 ng/L (117.7-483.1 ng/L), significantly higher compared with healthy control group 91.0 ng/L (52.4-119.7 ng/L), P lt 0.01. Conclusions: For IPF with PD-L1 expression on alveolar macrophages, further studies are necessary to elucidate this phenomenon. Serum sPD-1/PD-L1 is easily detected in clinical practice and should be further evaluated as a potential prognostic or/and predictive biomarker in IPF.
PB  - Ame Publ Co, Shatin
T2  - Journal of Thoracic Disease
T1  - Membrane PD-L1 expression and soluble PD-L1 plasma levels in idiopathic pulmonary fibrosis-a pilot study
VL  - 10
IS  - 12
SP  - 6660
EP  - 6669
DO  - 10.21037/jtd.2018.11.16
ER  - 

@article{
author = "Jovanović, Dragana and Milenković, Marina and Kotur-Stevuljević, Jelena and Marković, Jelena and Ceriman, Vesna and Kontić, Milica and Skodrić-Trifunović, Vesna",
year = "2018",
abstract = "Background: Idiopathic pulmonary fibrosis (IPF) has common risk factors with cancer and significant similarities in the pathobiology process, both diseases having poor outcomes. Immune checkpoint PD-L1 has become the target of checkpoint inhibitory therapy that unleashes antitumor T cells and has revolutionized cancer treatment. This is a pilot study exploring membrane immune checkpoint PD-L1 expression in human IPF lung tissue samples and its soluble form, soluble PD-L1 (sPD-L1) plasma concentrations in IPF patients, in order to investigate potential role of PD-L1 as an IPF biomarker. Methods: Twelve human IPF lung tissue samples (formalin-fixed, paraffin-embedded) obtained by surgical biopsy, have been tested for PD-L1 expression by PD-L1 IHC 22C3 pharmDx assay, while plasma samples for examination of sPD-L1 forms, PD-L1 (B7-H1/CD274) blood concentration, originated from 23 patients with IPE who did not undergo surgical biopsy. Results: Membrane PD-L1 expression in IPF lung tissue samples was positive to overexpression of PD-L1 in 9 samples out of 12. Only very few cells in the interstitium have shown a discrete PD-L1 expression, but not of a membrane type. As for sPD-L1 forms, we have found elevated concentrations of sPD-L1 in the serum of IPF patients 314.3 ng/L (117.7-483.1 ng/L), significantly higher compared with healthy control group 91.0 ng/L (52.4-119.7 ng/L), P lt 0.01. Conclusions: For IPF with PD-L1 expression on alveolar macrophages, further studies are necessary to elucidate this phenomenon. Serum sPD-1/PD-L1 is easily detected in clinical practice and should be further evaluated as a potential prognostic or/and predictive biomarker in IPF.",
publisher = "Ame Publ Co, Shatin",
journal = "Journal of Thoracic Disease",
title = "Membrane PD-L1 expression and soluble PD-L1 plasma levels in idiopathic pulmonary fibrosis-a pilot study",
volume = "10",
number = "12",
pages = "6660-6669",
doi = "10.21037/jtd.2018.11.16"
}

Jovanović, D., Milenković, M., Kotur-Stevuljević, J., Marković, J., Ceriman, V., Kontić, M.,& Skodrić-Trifunović, V.. (2018). Membrane PD-L1 expression and soluble PD-L1 plasma levels in idiopathic pulmonary fibrosis-a pilot study. in Journal of Thoracic Disease
Ame Publ Co, Shatin., 10(12), 6660-6669.
https://doi.org/10.21037/jtd.2018.11.16

Jovanović D, Milenković M, Kotur-Stevuljević J, Marković J, Ceriman V, Kontić M, Skodrić-Trifunović V. Membrane PD-L1 expression and soluble PD-L1 plasma levels in idiopathic pulmonary fibrosis-a pilot study. in Journal of Thoracic Disease. 2018;10(12):6660-6669.
doi:10.21037/jtd.2018.11.16 .

Jovanović, Dragana, Milenković, Marina, Kotur-Stevuljević, Jelena, Marković, Jelena, Ceriman, Vesna, Kontić, Milica, Skodrić-Trifunović, Vesna, "Membrane PD-L1 expression and soluble PD-L1 plasma levels in idiopathic pulmonary fibrosis-a pilot study" in Journal of Thoracic Disease, 10, no. 12 (2018):6660-6669,
https://doi.org/10.21037/jtd.2018.11.16 . .

TY  - JOUR
AU  - Popević, Spasoje
AU  - Šumarac, Zorica
AU  - Jovanović, Dragana
AU  - Babić, Dragan
AU  - Stjepanović, Mihailo
AU  - Jovičić, Snežana
AU  - Sobić-Saranović, Dragana
AU  - Filipović, Snežana
AU  - Gvozdenović, Branko
AU  - Omcikus, Maja
AU  - Milovanović, Andela
AU  - Videnović-Ivanov, Jelica
AU  - Radović, Ana
AU  - Zugić, Vladimir
AU  - Vučinić-Mihailović, Violeta
PY  - 2016
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2749
AB  - Background: Until now, a proper biomarker(s) to evaluate sarcoidosis activity has not been recognized. The aims of this study were to evaluate the sensitivity and specificity of the two biomarkers of sarcoidosis activity already in use (serum angiotensin converting enzyme - ACE and serum chitotriosidase) in a population of 430 sarcoidosis patients. The activities of these markers were also analyzed in a group of 264 healthy controls. Methods: Four hundred and thirty biopsy positive sarcoidosis patients were divided into groups with active and inactive disease, and groups with acute or chronic disease. In a subgroup of 55 sarcoidosis patients, activity was also assessed by F-18 fluorodeoxyglucose positron emission tomography (F-18-FDG-PET) scanning. Both serum chitotriosidase and ACE levels showed non-normal distribution, so nonparametric tests were used in statistical analysis. Results: Serum chitotriosidase activities were almost 6 times higher in patients with active sarcoidosis than in healthy controls and inactive disease. A serum chitotriosidase value of 100 nmol/mL/h had the sensitivity of 82.5% and specificity of 70.0%. A serum ACE activity cutoff value of 32.0 U/L had the sensitivity of 66.0% and the specificity of 54%. A statistically significant correlation was obtained between the focal granulomatous activity detected on F-18-FDG PET/CT and serum chitotriosidase levels, but no such correlation was found with ACE. The levels of serum chitotriosidase activity significantly correlated with the disease duration (P lt 0.0001). Also, serum chitotriosidase significantly correlated with clinical outcome status (COS) categories (rho=0.272, P=0.001). Conclusions: Serum chitotriosidase proved to be a reliable biomarker of sarcoidosis activity and disease chronicity.
PB  - Društvo medicinskih biohemičara Srbije, Beograd i Versita
T2  - Journal of Medical Biochemistry
T1  - Verifying Sarcoidosis Activity: Chitotriosidase Versus ACE in Sarcoidosis - A Case-Control Study
VL  - 35
IS  - 4
SP  - 390
EP  - 400
DO  - 10.1515/jomb-2016-0017
ER  - 

@article{
author = "Popević, Spasoje and Šumarac, Zorica and Jovanović, Dragana and Babić, Dragan and Stjepanović, Mihailo and Jovičić, Snežana and Sobić-Saranović, Dragana and Filipović, Snežana and Gvozdenović, Branko and Omcikus, Maja and Milovanović, Andela and Videnović-Ivanov, Jelica and Radović, Ana and Zugić, Vladimir and Vučinić-Mihailović, Violeta",
year = "2016",
abstract = "Background: Until now, a proper biomarker(s) to evaluate sarcoidosis activity has not been recognized. The aims of this study were to evaluate the sensitivity and specificity of the two biomarkers of sarcoidosis activity already in use (serum angiotensin converting enzyme - ACE and serum chitotriosidase) in a population of 430 sarcoidosis patients. The activities of these markers were also analyzed in a group of 264 healthy controls. Methods: Four hundred and thirty biopsy positive sarcoidosis patients were divided into groups with active and inactive disease, and groups with acute or chronic disease. In a subgroup of 55 sarcoidosis patients, activity was also assessed by F-18 fluorodeoxyglucose positron emission tomography (F-18-FDG-PET) scanning. Both serum chitotriosidase and ACE levels showed non-normal distribution, so nonparametric tests were used in statistical analysis. Results: Serum chitotriosidase activities were almost 6 times higher in patients with active sarcoidosis than in healthy controls and inactive disease. A serum chitotriosidase value of 100 nmol/mL/h had the sensitivity of 82.5% and specificity of 70.0%. A serum ACE activity cutoff value of 32.0 U/L had the sensitivity of 66.0% and the specificity of 54%. A statistically significant correlation was obtained between the focal granulomatous activity detected on F-18-FDG PET/CT and serum chitotriosidase levels, but no such correlation was found with ACE. The levels of serum chitotriosidase activity significantly correlated with the disease duration (P lt 0.0001). Also, serum chitotriosidase significantly correlated with clinical outcome status (COS) categories (rho=0.272, P=0.001). Conclusions: Serum chitotriosidase proved to be a reliable biomarker of sarcoidosis activity and disease chronicity.",
publisher = "Društvo medicinskih biohemičara Srbije, Beograd i Versita",
journal = "Journal of Medical Biochemistry",
title = "Verifying Sarcoidosis Activity: Chitotriosidase Versus ACE in Sarcoidosis - A Case-Control Study",
volume = "35",
number = "4",
pages = "390-400",
doi = "10.1515/jomb-2016-0017"
}

Popević, S., Šumarac, Z., Jovanović, D., Babić, D., Stjepanović, M., Jovičić, S., Sobić-Saranović, D., Filipović, S., Gvozdenović, B., Omcikus, M., Milovanović, A., Videnović-Ivanov, J., Radović, A., Zugić, V.,& Vučinić-Mihailović, V.. (2016). Verifying Sarcoidosis Activity: Chitotriosidase Versus ACE in Sarcoidosis - A Case-Control Study. in Journal of Medical Biochemistry
Društvo medicinskih biohemičara Srbije, Beograd i Versita., 35(4), 390-400.
https://doi.org/10.1515/jomb-2016-0017

Popević S, Šumarac Z, Jovanović D, Babić D, Stjepanović M, Jovičić S, Sobić-Saranović D, Filipović S, Gvozdenović B, Omcikus M, Milovanović A, Videnović-Ivanov J, Radović A, Zugić V, Vučinić-Mihailović V. Verifying Sarcoidosis Activity: Chitotriosidase Versus ACE in Sarcoidosis - A Case-Control Study. in Journal of Medical Biochemistry. 2016;35(4):390-400.
doi:10.1515/jomb-2016-0017 .

Popević, Spasoje, Šumarac, Zorica, Jovanović, Dragana, Babić, Dragan, Stjepanović, Mihailo, Jovičić, Snežana, Sobić-Saranović, Dragana, Filipović, Snežana, Gvozdenović, Branko, Omcikus, Maja, Milovanović, Andela, Videnović-Ivanov, Jelica, Radović, Ana, Zugić, Vladimir, Vučinić-Mihailović, Violeta, "Verifying Sarcoidosis Activity: Chitotriosidase Versus ACE in Sarcoidosis - A Case-Control Study" in Journal of Medical Biochemistry, 35, no. 4 (2016):390-400,
https://doi.org/10.1515/jomb-2016-0017 . .

TY  - JOUR
AU  - Natić, Dejan
AU  - Jovanović, Dragana
AU  - Knežević, Tanja
AU  - Karadžić, Vesna
AU  - Bulat, Zorica
AU  - Matović, Vesna
PY  - 2012
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1827
AB  - Background/Aim. Cyanobacterial toxins befall a group of various compounds according to chemical structure and health effects on people and animals. The most significant in this large group of compounds are microcystins. Their presence in water used for human consumption causes serious health problems, liver beeing the target organ. Microcystins are spread all over the world. Waterblooms of cyanobacterias and their cyanotoxins are also common in the majority of surface waters in Serbia. The aim of this study was to propose HPLC method for determination of mikrocystin-LR, to validate the method and to use it for determination of microcystin-LR in the surface water of the river Ponjavica. The Ponjavica is very eutrophic water and has ideal conditions for the cyanobacterial growth. Methods. Sample of water form the Ponjavica river were collected during the summer 2008. Coupled columns (HLB, Sep-Pak), were used for sample preparation and HPLC/PDA method was used for quantification of microcystin- LR. Results. Parameters of validation show that the proposed method is simple, fast, sensitive (0.1 mg/L) and selective with the yield of 89%-92%. The measuring uncertainty of 􀁲 5% was obtained. The obtained results for surface water show that microcystin concentration reached the maximum level during August and September (1.5 μg/L). The value is higher than maximum allowable concentration of microcystin in drinking water (1 μg/L) proposed by WHO. Conclusion. This study contributes to the issue of pollution of the National Park Ponjavica. Besides, literature data and WHO clearly point out harmfulness of cyanobasterias and their toxins and implicate the necessity of legislation concerning determination and monitoring of these toxins in our country. Method used for quentification of mycrocystin-LR was shown to be sensitive, selective, rapid and simple and could be recommended for routine determination of this toxin.
AB  - Uvod/Cilj. Cijanotoksini, odnosno toksini cijanobakterija, spadaju u grupu raznovrsnih jedinjenja kako po hemijskoj strukturi, tako i po dejstvu na ljude i životinje. Najveći značaj u ovoj velikoj grupi jedinjenja imaju mikrocistini. Njihovo prisustvo u vodi može da izazove toksične efekte, posebno na jetru. Mikrocistini su rasprostranjeni širom sveta. Cvetanje toksičnih cijanobakterija i njihovi cijanotoksini karakteristični su i za neke površinske vode u Srbiji. Cilj ovog rada bio je da se uvede HPLC metoda za određivanje mikrocistina-LR, da se izvrši validacija metode i odredi sadržaj mikrocistina-LR u površinskoj vodi reke Ponjavice, veoma eutrofne reke, koja poseduje idealne uslove za razvoj cijanobakterija. Metode. Za pripremu uzoraka korišćeni su HLB i C8 ulošci, a za dodatno prečišćavanje upotrebljeni su Sep-Pak silika ulošci. Kvantifikacija mikrocistina-LR vršena je metodom HPLC pomoću detektora na principu fotodiode (HPLC/PDA) korišćenjem kolone RP C18 Zorbax Eclips (4,6x150,5 μm), upotrebom mobilne faze sastava 0,1% rastvor trifluorosirćetne kiseline (TFA) u metanolu: 0,1% vodeni rastvor TFA u odnosu 60 : 40 (v/v), na 238 nm. Retenciono vreme mikrocistina-LR iznosilo je 10 min. Uzorci vode reke Ponjavice za analizu mikrocistina-LR sakupljeni su tokom perioda jun-novembar 2008. godine. Rezultati. Validacijom metode utvrđena je osetljivost 0,1 μg/L, prinos 89-92% i merna nesigurnost od ± 5%. Rezultati uzoraka vode reke Ponjavice pokazali su da je vrednost mikrocistina-LR dostigla maksimum tokom avgusta i septembra (1,5 μg/L), i da je iznad maksimalno dozvoljene koncentracije za pijaću vodu (1 μg/L) prema preporuci Svetske zdravstvene organizacije. Zaključak. Parametri validacije pokazuju da je predložena metoda osetljiva i selektivna, što je, uz činjenicu da je jednostavna i brza, čini pogodnom za rutinsko određivanje mikrocistina-LR. Predloženom metodom određene su povišene koncentracije ovog toksina cijanobakterija u uzorcima vode reke Ponjavice, koje ukazuju na zagađenost Parka prirode 'Ponjavica'.
PB  - Vojnomedicinska akademija - Institut za naučne informacije, Beograd
T2  - Vojnosanitetski pregled
T1  - Microcystin-LR in surface water of Ponjavica river
T1  - Mikrocistin-LR u površinskim vodama reke Ponjavice
VL  - 69
IS  - 9
SP  - 753
EP  - 758
DO  - 10.2298/VSP1209753N
ER  - 

@article{
author = "Natić, Dejan and Jovanović, Dragana and Knežević, Tanja and Karadžić, Vesna and Bulat, Zorica and Matović, Vesna",
year = "2012",
abstract = "Background/Aim. Cyanobacterial toxins befall a group of various compounds according to chemical structure and health effects on people and animals. The most significant in this large group of compounds are microcystins. Their presence in water used for human consumption causes serious health problems, liver beeing the target organ. Microcystins are spread all over the world. Waterblooms of cyanobacterias and their cyanotoxins are also common in the majority of surface waters in Serbia. The aim of this study was to propose HPLC method for determination of mikrocystin-LR, to validate the method and to use it for determination of microcystin-LR in the surface water of the river Ponjavica. The Ponjavica is very eutrophic water and has ideal conditions for the cyanobacterial growth. Methods. Sample of water form the Ponjavica river were collected during the summer 2008. Coupled columns (HLB, Sep-Pak), were used for sample preparation and HPLC/PDA method was used for quantification of microcystin- LR. Results. Parameters of validation show that the proposed method is simple, fast, sensitive (0.1 mg/L) and selective with the yield of 89%-92%. The measuring uncertainty of 􀁲 5% was obtained. The obtained results for surface water show that microcystin concentration reached the maximum level during August and September (1.5 μg/L). The value is higher than maximum allowable concentration of microcystin in drinking water (1 μg/L) proposed by WHO. Conclusion. This study contributes to the issue of pollution of the National Park Ponjavica. Besides, literature data and WHO clearly point out harmfulness of cyanobasterias and their toxins and implicate the necessity of legislation concerning determination and monitoring of these toxins in our country. Method used for quentification of mycrocystin-LR was shown to be sensitive, selective, rapid and simple and could be recommended for routine determination of this toxin., Uvod/Cilj. Cijanotoksini, odnosno toksini cijanobakterija, spadaju u grupu raznovrsnih jedinjenja kako po hemijskoj strukturi, tako i po dejstvu na ljude i životinje. Najveći značaj u ovoj velikoj grupi jedinjenja imaju mikrocistini. Njihovo prisustvo u vodi može da izazove toksične efekte, posebno na jetru. Mikrocistini su rasprostranjeni širom sveta. Cvetanje toksičnih cijanobakterija i njihovi cijanotoksini karakteristični su i za neke površinske vode u Srbiji. Cilj ovog rada bio je da se uvede HPLC metoda za određivanje mikrocistina-LR, da se izvrši validacija metode i odredi sadržaj mikrocistina-LR u površinskoj vodi reke Ponjavice, veoma eutrofne reke, koja poseduje idealne uslove za razvoj cijanobakterija. Metode. Za pripremu uzoraka korišćeni su HLB i C8 ulošci, a za dodatno prečišćavanje upotrebljeni su Sep-Pak silika ulošci. Kvantifikacija mikrocistina-LR vršena je metodom HPLC pomoću detektora na principu fotodiode (HPLC/PDA) korišćenjem kolone RP C18 Zorbax Eclips (4,6x150,5 μm), upotrebom mobilne faze sastava 0,1% rastvor trifluorosirćetne kiseline (TFA) u metanolu: 0,1% vodeni rastvor TFA u odnosu 60 : 40 (v/v), na 238 nm. Retenciono vreme mikrocistina-LR iznosilo je 10 min. Uzorci vode reke Ponjavice za analizu mikrocistina-LR sakupljeni su tokom perioda jun-novembar 2008. godine. Rezultati. Validacijom metode utvrđena je osetljivost 0,1 μg/L, prinos 89-92% i merna nesigurnost od ± 5%. Rezultati uzoraka vode reke Ponjavice pokazali su da je vrednost mikrocistina-LR dostigla maksimum tokom avgusta i septembra (1,5 μg/L), i da je iznad maksimalno dozvoljene koncentracije za pijaću vodu (1 μg/L) prema preporuci Svetske zdravstvene organizacije. Zaključak. Parametri validacije pokazuju da je predložena metoda osetljiva i selektivna, što je, uz činjenicu da je jednostavna i brza, čini pogodnom za rutinsko određivanje mikrocistina-LR. Predloženom metodom određene su povišene koncentracije ovog toksina cijanobakterija u uzorcima vode reke Ponjavice, koje ukazuju na zagađenost Parka prirode 'Ponjavica'.",
publisher = "Vojnomedicinska akademija - Institut za naučne informacije, Beograd",
journal = "Vojnosanitetski pregled",
title = "Microcystin-LR in surface water of Ponjavica river, Mikrocistin-LR u površinskim vodama reke Ponjavice",
volume = "69",
number = "9",
pages = "753-758",
doi = "10.2298/VSP1209753N"
}

Natić, D., Jovanović, D., Knežević, T., Karadžić, V., Bulat, Z.,& Matović, V.. (2012). Microcystin-LR in surface water of Ponjavica river. in Vojnosanitetski pregled
Vojnomedicinska akademija - Institut za naučne informacije, Beograd., 69(9), 753-758.
https://doi.org/10.2298/VSP1209753N

Natić D, Jovanović D, Knežević T, Karadžić V, Bulat Z, Matović V. Microcystin-LR in surface water of Ponjavica river. in Vojnosanitetski pregled. 2012;69(9):753-758.
doi:10.2298/VSP1209753N .

Natić, Dejan, Jovanović, Dragana, Knežević, Tanja, Karadžić, Vesna, Bulat, Zorica, Matović, Vesna, "Microcystin-LR in surface water of Ponjavica river" in Vojnosanitetski pregled, 69, no. 9 (2012):753-758,
https://doi.org/10.2298/VSP1209753N . .