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Browsing by Author "Jelic-Ivanovic, Zorana (6603775254)"

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    Associations of apgar score and size at birth with lipoprotein subclasses in juvenile obesity
    (2017)
    Bekhet, Osama H. (57190299786)
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    Vekic, Jelena (16023232500)
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    Zeljkovic, Aleksandra (15021559900)
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    Paripovic, Dusan (14621764400)
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    Gojkovic, Tamara (55191372700)
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    Janac, Jelena (53874919200)
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    Spasojevic-Kalimanovska, Vesna (6602511188)
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    Peco-Antic, Amira (7004525216)
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    Milosevski-Lomic, Gordana (20436011000)
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    Jelic-Ivanovic, Zorana (6603775254)
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    Stefanovic, Aleksandra (15021458500)
    Background/aim: Juvenile obesity is associated with several metabolic abnormalities, one of them being atherogenic dyslipidemia. Suboptimal fetal growth is associated with obesity risk in childhood, but also with increased rate of metabolic diseases in later life. This study investigated associations of neonatal data (Apgar score, birth weight and birth length) with low-density lipoprotein and high-density lipoprotein (LDL and HDL) subclasses in a group of obese children, as well as a possible impact of breastfeeding duration on obesity-associated lipoprotein subclasses distributions. Materials and methods: We included 42 obese children, aged 14.2 ± 2.1 years. LDL and HDL subfractions were separated by gradient gel electrophoresis and biochemical parameters were assessed by routine methods. Results: Compared with obese children with Apgar ≥ 9, the group with Apgar < 9 had significantly higher percentages of small, dense LDL particles (P < 0.05), due to reduced LDL I (P < 0.01) and increased LDL III subclasses (P < 0.05). Birth weight was positively associated with the proportions of LDL I particles (P < 0.001), whereas birth height positively correlated with the amount of HDL 2b subclasses (P < 0.05). The group of never or less than 3 months breastfed children had significantly smaller LDL size (P < 0.01) and lower proportion of HDL 2a particles (P < 0.05) than their ≥3 months breastfed peers. Conclusion: The results showed significant associations of neonatal characteristics with LDL and HDL particle distributions in obese children. In addition, our results point toward positive aspects of longer breastfeeding duration on lipoprotein particle distributions in obese children. © TÜBİTAK.
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    Can non-cholesterol sterols and lipoprotein subclasses distribution predict different patterns of cholesterol metabolism and statin therapy response?
    (2017)
    Gojkovic, Tamara (55191372700)
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    Vladimirov, Sandra (57193317803)
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    Spasojevic-Kalimanovska, Vesna (6602511188)
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    Zeljkovic, Aleksandra (15021559900)
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    Vekic, Jelena (16023232500)
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    Kalimanovska-Ostric, Dimitra (6603414966)
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    Djuricic, Ivana (23496321400)
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    Sobajic, Sladjana (20335904900)
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    Jelic-Ivanovic, Zorana (6603775254)
    Cholesterol homeostasis disorders may cause dyslipidemia, atherosclerosis progression and coronary artery disease (CAD) development. Evaluation of non-cholesterol sterols (NCSs) as synthesis and absorption markers, and lipoprotein particles quality may indicate the dyslipidemia early development. This study investigates associations of different cholesterol homeostasis patterns with low-density (LDL) and high-density lipoproteins (HDL) subclasses distribution in statin-treated and statin-untreated CAD patients, and potential use of aforementioned markers for CAD treatment optimization. The study included 78 CAD patients (47 statin-untreated and 31 statin-treated) and 31 controls (CG). NCSs concentrations were quantified using gas chromatography- flame ionization detection (GC-FID). Lipoprotein subclasses were separated by gradient gel electrophoresis. In patients, cholesterol-synthesis markers were significantly higher comparing to CG. Cholesterol-synthesis markers were inversely associated with LDL size in all groups. For cholesterol homeostasis estimation, each group was divided to good and/or poor synthetizers and/or absorbers according to desmosterol and β-sitosterol median values. In CG, participants with reduced cholesterol absorption, the relative proportion of small, dense LDL was higher in those with increased cholesterol synthesis compared to those with reduced synthesis (p<0.01). LDL I fraction was significantly higher in poor synthetizers/poor absorbers subgroup compared to poor synthetizers/good absorbers (p<0.01), and good synthetizers/poor absorbers (p<0.01). Statin-treated patients with increased cholesterol absorption had increased proportion of LDL IVB (p<0.05). The results suggest the existence of different lipoprotein abnormalities according to various patterns of cholesterol homeostasis. Desmosterol/β-sitosterol ratio could be used for estimating individual propensity toward dyslipidemia development and direct the future treatment. © 2017 Walter de Gruyter GmbH, Berlin/Boston.
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    Can non-cholesterol sterols and lipoprotein subclasses distribution predict different patterns of cholesterol metabolism and statin therapy response?
    (2017)
    Gojkovic, Tamara (55191372700)
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    Vladimirov, Sandra (57193317803)
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    Spasojevic-Kalimanovska, Vesna (6602511188)
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    Zeljkovic, Aleksandra (15021559900)
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    Vekic, Jelena (16023232500)
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    Kalimanovska-Ostric, Dimitra (6603414966)
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    Djuricic, Ivana (23496321400)
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    Sobajic, Sladjana (20335904900)
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    Jelic-Ivanovic, Zorana (6603775254)
    Cholesterol homeostasis disorders may cause dyslipidemia, atherosclerosis progression and coronary artery disease (CAD) development. Evaluation of non-cholesterol sterols (NCSs) as synthesis and absorption markers, and lipoprotein particles quality may indicate the dyslipidemia early development. This study investigates associations of different cholesterol homeostasis patterns with low-density (LDL) and high-density lipoproteins (HDL) subclasses distribution in statin-treated and statin-untreated CAD patients, and potential use of aforementioned markers for CAD treatment optimization. The study included 78 CAD patients (47 statin-untreated and 31 statin-treated) and 31 controls (CG). NCSs concentrations were quantified using gas chromatography- flame ionization detection (GC-FID). Lipoprotein subclasses were separated by gradient gel electrophoresis. In patients, cholesterol-synthesis markers were significantly higher comparing to CG. Cholesterol-synthesis markers were inversely associated with LDL size in all groups. For cholesterol homeostasis estimation, each group was divided to good and/or poor synthetizers and/or absorbers according to desmosterol and β-sitosterol median values. In CG, participants with reduced cholesterol absorption, the relative proportion of small, dense LDL was higher in those with increased cholesterol synthesis compared to those with reduced synthesis (p<0.01). LDL I fraction was significantly higher in poor synthetizers/poor absorbers subgroup compared to poor synthetizers/good absorbers (p<0.01), and good synthetizers/poor absorbers (p<0.01). Statin-treated patients with increased cholesterol absorption had increased proportion of LDL IVB (p<0.05). The results suggest the existence of different lipoprotein abnormalities according to various patterns of cholesterol homeostasis. Desmosterol/β-sitosterol ratio could be used for estimating individual propensity toward dyslipidemia development and direct the future treatment. © 2017 Walter de Gruyter GmbH, Berlin/Boston.
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    Characteristics of low-density and high-density lipoprotein subclasses in pediatric renal transplant recipients
    (2011)
    Zeljkovic, Aleksandra (15021559900)
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    Vekic, Jelena (16023232500)
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    Spasojevic-Kalimanovska, Vesna (6602511188)
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    Jelic-Ivanovic, Zorana (6603775254)
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    Peco-Antic, Amira (7004525216)
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    Kostic, Mirjana (56247970900)
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    Vasic, Dragan (7003336138)
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    Spasic, Slavica (7004551675)
    Renal transplant recipients often suffer from dyslipidemia which is one of the principal risk factors for cardiovascular disease. This study sought to determine characteristics of high-density lipoprotein (HDL) and low-density lipoprotein (LDL) particles and their associations with carotid intima-media thickness (cIMT) in a group of pediatric renal transplant recipients. We also examined the influence of immunosuppressive therapy on measured LDL and HDL particle characteristics. HDL size and subclass distribution were determined using gradient gel electrophoresis, while concentrations of small, dense LDL (sdLDL)-cholesterol (sdLDL-C) and sdLDL-apolipoprotein B (sdLDL-apoB) using heparin-magnesium precipitation method in 21 renal transplant recipients and 32 controls. Renal transplant recipients had less HDL 2b (P < 0.001), but more HDL 3a (P < 0.01) and 3b (P < 0.001) subclasses. They also had increased sdLDL-C (P < 0.01) and sdLDL-apoB (P < 0.05) levels. The proportion of the HDL 3b subclasses was a significant predictor of increased cIMT (P < 0.05). Patients treated with cyclosporine had significantly higher sdLDL-C and sdLDL-apoB concentrations (P < 0.05) when compared with those on tacrolimus therapy. Pediatric renal transplant recipients have impaired distribution of HDL and LDL particles. Changes in the proportion of small-sized HDL particles are significantly associated with cIMT. Advanced lipid testing might be useful in evaluating the effects of immunosuppressive therapy. © 2011 European Society for Organ Transplantation.
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    Circulating resistin protein and mRNA concentrations and clinical severity of coronary artery disease
    (2015)
    Joksic, Jelena (57194078742)
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    Sopic, Miron (55807303500)
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    Spasojevic-Kalimanovska, Vesna (6602511188)
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    Kalimanovska-Ostric, Dimitra (6603414966)
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    Andjelkovic, Kristina (55778189900)
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    Jelic-Ivanovic, Zorana (6603775254)
    Introduction: Previous studies have implicated a strong link between circulating plasma resistin and coronary artery disease (CAD). The aim of this study was to evaluate the differences in peripheral blood mononuclear cells (PBMC) resistin mRNA and its plasma protein concentrations between the patients with CAD of different clinical severity. Material and methods: This study included 33 healthy subjects as the control group (CG) and 77 patients requiring coronary angiography. Of the latter 30 was CAD negative whereas 47 were CAD positive [18 with stable angina pectoris (SAP) and 29 with acute coronary syndrome (ACS)]. Circulating resistin was measured by ELISA; PBMC resistin mRNA was determined by real-time PCR. Results: Resistin protein was significantly higher in the ACS group compared to the CG (P = 0.001) and the CAD negative group (P = 0.018). Resistin mRNA expression did not vary across the study groups, despite the positive correlation seen with plasma resistin (ρ = 0.305, P = 0.008). In patients, plasma resistin and PBMC resistin mRNA negatively correlated with HDL-C (ρ = -0.404, P < 0.001 and ρ = -0.257, P = 0.032, respectively). Furthermore, the highest plasma resistin tertile showed the lowest HDL-C (P = 0.006). Plasma resistin was positively associated with serum creatinine (ρ = 0.353, P = 0.002). Conclusion: Significant increase of plasma resistin in patients with ACS compared to CG and CAD negative patients was observed. Despite no change in PBMC resistin mRNA in different disease conditions a positive association between resistin mRNA and resistin plasma protein was evident. Both plasma resistin and PBMC resistin mRNA were negatively associated with plasma HDL-C, and plasma resistin positively with serum creatinine. © 2015, Croatian Society of Medical Biochemistry and Laboratory Medicine.
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    Circulating resistin protein and mRNA concentrations and clinical severity of coronary artery disease
    (2015)
    Joksic, Jelena (57194078742)
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    Sopic, Miron (55807303500)
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    Spasojevic-Kalimanovska, Vesna (6602511188)
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    Kalimanovska-Ostric, Dimitra (6603414966)
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    Andjelkovic, Kristina (55778189900)
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    Jelic-Ivanovic, Zorana (6603775254)
    Introduction: Previous studies have implicated a strong link between circulating plasma resistin and coronary artery disease (CAD). The aim of this study was to evaluate the differences in peripheral blood mononuclear cells (PBMC) resistin mRNA and its plasma protein concentrations between the patients with CAD of different clinical severity. Material and methods: This study included 33 healthy subjects as the control group (CG) and 77 patients requiring coronary angiography. Of the latter 30 was CAD negative whereas 47 were CAD positive [18 with stable angina pectoris (SAP) and 29 with acute coronary syndrome (ACS)]. Circulating resistin was measured by ELISA; PBMC resistin mRNA was determined by real-time PCR. Results: Resistin protein was significantly higher in the ACS group compared to the CG (P = 0.001) and the CAD negative group (P = 0.018). Resistin mRNA expression did not vary across the study groups, despite the positive correlation seen with plasma resistin (ρ = 0.305, P = 0.008). In patients, plasma resistin and PBMC resistin mRNA negatively correlated with HDL-C (ρ = -0.404, P < 0.001 and ρ = -0.257, P = 0.032, respectively). Furthermore, the highest plasma resistin tertile showed the lowest HDL-C (P = 0.006). Plasma resistin was positively associated with serum creatinine (ρ = 0.353, P = 0.002). Conclusion: Significant increase of plasma resistin in patients with ACS compared to CG and CAD negative patients was observed. Despite no change in PBMC resistin mRNA in different disease conditions a positive association between resistin mRNA and resistin plasma protein was evident. Both plasma resistin and PBMC resistin mRNA were negatively associated with plasma HDL-C, and plasma resistin positively with serum creatinine. © 2015, Croatian Society of Medical Biochemistry and Laboratory Medicine.
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    Cost- effectiveness analysis of acute kidney injury biomarkers in pediatric cardiac surgery
    (2015)
    Petrovic, Stanislava (55807329900)
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    Bogavac-Stanojevic, Natasa (6506171691)
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    Lakic, Dragana (35170248800)
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    Peco-Antic, Amira (7004525216)
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    Vulicevic, Irena (55588791200)
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    Ivanisevic, Ivana (55588798700)
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    Kotur-Stevuljevic, Jelena (6506416348)
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    Jelic-Ivanovic, Zorana (6603775254)
    Introduction: Acute kidney injury (AKI) is significant problem in children with congenital heart disease (CHD) who undergo cardiac surgery. The economic impact of a biomarker-based diagnostic strategy for AKI in pediatric populations undergoing CHD surgery is unknown. The aim of this study was to perform the cost effectiveness analysis of using serum cystatin C (sCysC), urine neutrophil gelatinase-associated lipocalin (uNGAL) and urine liver fatty acid-binding protein (uL-FABP) for the diagnosis of AKI in children after cardiac surgery compared with current diagnostic method (monitoring of serum creatinine (sCr) level). Materials and methods: We developed a decision analytical model to estimate incremental cost-effectiveness of different biomarker-based diagnostic strategies compared to current diagnostic strategy. The Markov model was created to compare the lifetime cost associated with using of sCysC, uNGAL, uL-FABP with monitoring of sCr level for the diagnosis of AKI. The utility measurement included in the analysis was quality-adjusted life years (QALY). The results of the analysis are presented as the incremental cost-effectiveness ratio (ICER). Results: Analysed biomarker-based diagnostic strategies for AKI were cost-effective compared to current diagnostic method. However, uNGAL and sCys C strategies yielded higher costs and lower effectiveness compared to uL-FABP strategy. uL-FABP added 1.43 QALY compared to current diagnostic method at an additional cost of $8521.87 per patient. Therefore, ICER for uL-FABP compared to sCr was $5959.35/QALY. Conclusions: Our results suggest that the use of uL-FABP would represent cost effective strategy for early diagnosis of AKI in children after cardiac surgery. © 2015, Croatian Society of Medical Biochemistry and Laboratory Medicine.
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    Cost- effectiveness analysis of acute kidney injury biomarkers in pediatric cardiac surgery
    (2015)
    Petrovic, Stanislava (55807329900)
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    Bogavac-Stanojevic, Natasa (6506171691)
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    Lakic, Dragana (35170248800)
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    Peco-Antic, Amira (7004525216)
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    Vulicevic, Irena (55588791200)
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    Ivanisevic, Ivana (55588798700)
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    Kotur-Stevuljevic, Jelena (6506416348)
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    Jelic-Ivanovic, Zorana (6603775254)
    Introduction: Acute kidney injury (AKI) is significant problem in children with congenital heart disease (CHD) who undergo cardiac surgery. The economic impact of a biomarker-based diagnostic strategy for AKI in pediatric populations undergoing CHD surgery is unknown. The aim of this study was to perform the cost effectiveness analysis of using serum cystatin C (sCysC), urine neutrophil gelatinase-associated lipocalin (uNGAL) and urine liver fatty acid-binding protein (uL-FABP) for the diagnosis of AKI in children after cardiac surgery compared with current diagnostic method (monitoring of serum creatinine (sCr) level). Materials and methods: We developed a decision analytical model to estimate incremental cost-effectiveness of different biomarker-based diagnostic strategies compared to current diagnostic strategy. The Markov model was created to compare the lifetime cost associated with using of sCysC, uNGAL, uL-FABP with monitoring of sCr level for the diagnosis of AKI. The utility measurement included in the analysis was quality-adjusted life years (QALY). The results of the analysis are presented as the incremental cost-effectiveness ratio (ICER). Results: Analysed biomarker-based diagnostic strategies for AKI were cost-effective compared to current diagnostic method. However, uNGAL and sCys C strategies yielded higher costs and lower effectiveness compared to uL-FABP strategy. uL-FABP added 1.43 QALY compared to current diagnostic method at an additional cost of $8521.87 per patient. Therefore, ICER for uL-FABP compared to sCr was $5959.35/QALY. Conclusions: Our results suggest that the use of uL-FABP would represent cost effective strategy for early diagnosis of AKI in children after cardiac surgery. © 2015, Croatian Society of Medical Biochemistry and Laboratory Medicine.
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    Glutathione S-transferase A1, M1, P1 and T1 null or low-activity genotypes are associated with enhanced oxidative damage among haemodialysis patients
    (2013)
    Suvakov, Sonja (36572404500)
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    Damjanovic, Tatjana (6603050029)
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    Stefanovic, Aleksandra (15021458500)
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    Pekmezovic, Tatjana (7003989932)
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    Savic-Radojevic, Ana (16246037100)
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    Pljesa-Ercegovac, Marija (16644038900)
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    Matic, Marija (58618962300)
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    Djukic, Tatjana (36193753800)
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    Coric, Vesna (55584570400)
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    Jakovljevic, Jovana (59663020100)
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    Ivanisevic, Jasmina (54389258300)
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    Pljesa, Steva (6603281733)
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    Jelic-Ivanovic, Zorana (6603775254)
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    Mimic-Oka, Jasmina (56022732500)
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    Dimkovic, Nada (6603958094)
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    Simic, Tatjana (6602094386)
    BackgroundIncreased oxidative stress is a hallmark of end-stage renal disease (ESRD). Glutathione S-transferases (GST) are involved in the detoxification of xenobiotics and protection of oxidative damage. We hypothesized that genetic polymorphism in antioxidant enzymes GSTA1, GSTM1, GSTP1 and GSTT1 is more frequent in ESRD and modulates the degree of oxidative stress in these patients.MethodsGSTA1, GSTM1, GSTP1 and GSTT1 genotypes were determined in 199 ESRD patients and 199 age-and gender-matched controls. Markers of protein and lipid oxidative damage [thiol groups, carbonyl groups, advanced oxidative protein products, nitrotyrosine, malondialdehyde (MDA) and MDA adducts], together with total oxidant status and pro-oxidant-antioxidant balance were determined. Results Individual GST polymorphisms influence vulnerability to both protein and lipid oxidation, with GSTM1-null gene variant having the most pronounced effect. Furthermore, a strong combined effect of null/low-activity GSTM1, GSTT1, GSTA1 and GSTP1 genotypes in terms of susceptibility towards oxidative and carbonyl stress was found in ESRD patients. When patients were stratified according to GSTM1 and GSTT1, the highest oxidant damage was noted in those with the GSTM1-null/GSTT1-null genotype. The observed effect was even stronger in patients with the third low-activity GSTP1 or GSTA1 genotype. Finally, the level of oxidative and carbonyl stress was most pronounced in the subgroup of patients with all four null or low-activity GSTM1, GSTT1, GSTP1 and GSTA1 genotypes.ConclusionsAccording to the GST genotype, ESRD patients may be stratified in terms of the level of oxidative and carbonyl stress that might influence cardiovascular prognosis, but could also improve efforts towards individualization of antioxidant treatment. © 2013 The Author.
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    Low paraoxonase 1 activity predicts mortality in surgical patients with sepsis
    (2014)
    Bojic, Suzana (55965837500)
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    Kotur-Stevuljevic, Jelena (6506416348)
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    Kalezic, Nevena (6602526969)
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    Jelic-Ivanovic, Zorana (6603775254)
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    Stefanovic, Aleksandra (15021458500)
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    Palibrk, Ivan (6507415211)
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    Memon, Lidija (13007465900)
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    Kalaba, Zdravko (56086405000)
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    Stojanovic, Marina (7004959142)
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    Simic-Ogrizovic, Sanja (55923197400)
    Introduction. State of severe oxidative stress is encountered in sepsis. Paraoxonase 1 (PON1) protects against oxidative stress but also undergoes inactivation upon that condition. We investigated PON1 activity in surgical patients with sepsis in relation to oxidative stress status, inflammation, disease severity, and survival. Methods. Prospective observational study. Sixty-nine surgical patients with sepsis were compared to 69 age/sex matched healthy controls. PON1 paraoxonase and diazoxonase activities, selected biochemical, hematological and oxidative stress parameters were measured on admission to ICU and 24, 48, 72, and 96 hours later. Disease severity scores were calculated daily. Results. Septic patients had significantly lower PON1 activities compared to control group at all time points. PON1 activities had good capacity to differentiate septic patients from healthy controls. Low PON1 activities were associated with higher disease severity scores and higher risk of death. Correlation between PON1 activity and markers of inflammation failed to reach significance. Decrease in PON1 activity was correlated with an increase in reducing components in plasma. Conclusion. Our study demonstrated lower PON1 activity in surgical patients with sepsis compared to healthy controls. PON1 activity also reflected severity of the disease. Low PON1 activity was associated with higher mortality of surgical patients with sepsis. © 2014 Suzana Bojic et al.
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    Low paraoxonase 1 activity predicts mortality in surgical patients with sepsis
    (2014)
    Bojic, Suzana (55965837500)
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    Kotur-Stevuljevic, Jelena (6506416348)
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    Kalezic, Nevena (6602526969)
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    Jelic-Ivanovic, Zorana (6603775254)
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    Stefanovic, Aleksandra (15021458500)
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    Palibrk, Ivan (6507415211)
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    Memon, Lidija (13007465900)
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    Kalaba, Zdravko (56086405000)
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    Stojanovic, Marina (7004959142)
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    Simic-Ogrizovic, Sanja (55923197400)
    Introduction. State of severe oxidative stress is encountered in sepsis. Paraoxonase 1 (PON1) protects against oxidative stress but also undergoes inactivation upon that condition. We investigated PON1 activity in surgical patients with sepsis in relation to oxidative stress status, inflammation, disease severity, and survival. Methods. Prospective observational study. Sixty-nine surgical patients with sepsis were compared to 69 age/sex matched healthy controls. PON1 paraoxonase and diazoxonase activities, selected biochemical, hematological and oxidative stress parameters were measured on admission to ICU and 24, 48, 72, and 96 hours later. Disease severity scores were calculated daily. Results. Septic patients had significantly lower PON1 activities compared to control group at all time points. PON1 activities had good capacity to differentiate septic patients from healthy controls. Low PON1 activities were associated with higher disease severity scores and higher risk of death. Correlation between PON1 activity and markers of inflammation failed to reach significance. Decrease in PON1 activity was correlated with an increase in reducing components in plasma. Conclusion. Our study demonstrated lower PON1 activity in surgical patients with sepsis compared to healthy controls. PON1 activity also reflected severity of the disease. Low PON1 activity was associated with higher mortality of surgical patients with sepsis. © 2014 Suzana Bojic et al.
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    Markers of Oxidative Stress and Endothelial Dysfunction Predict Haemodialysis Patients Survival
    (2019)
    Suvakov, Sonja (36572404500)
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    Jerotic, Djurdja (57209718540)
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    Damjanovic, Tatjana (6603050029)
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    Milic, Natasa (7003460927)
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    Pekmezovic, Tatjana (7003989932)
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    Djukic, Tatjana (36193753800)
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    Jelic-Ivanovic, Zorana (6603775254)
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    Savic Radojevic, Ana (16246037100)
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    Pljesa-Ercegovac, Marija (16644038900)
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    Matic, Marija (58618962300)
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    Mcclements, Lana (55600912900)
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    Dimkovic, Nada (6603958094)
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    Garovic, Vesna D. (6603419874)
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    Albright, Robert C. (7005097444)
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    Simic, Tatjana (6602094386)
    Introduction: Overall survival of patients with end-stage renal disease (ESRD) remains poor. Oxidative stress is one of the major risk factors associated with mortality in this patient group. As glutathione S-transferases (GST) are well-established antioxidants, we hypothesized that a model including GST gene polymorphisms, oxidative damage byproducts and cell adhesion markers has a prognostic role in ESRD patient survival. Methods: A prospective study of 199 patients with ESRD on haemodialysis was conducted. GST genotype, oxidative stress byproducts and cell adhesion molecules were measured in plasma. Multivariate Cox regression and Kaplan-Meier survival analyses were performed to test the predictive ability of these parameters in the 8-year follow-up period. Results: GSTM1-null genotype was associated with significantly shorter overall (HR 1.6, p = 0.018) and cardiovascular-specific (HR 2.1, p = 0.010) survival. Oxidative stress byproducts (advanced oxidation protein products [AOPP], prooxidant-antioxidant balance [PAB], malondialdehyde [MDA]) and cell adhesion molecules (soluble vascular cell adhesion molecule-1 [sVCAM-1] and soluble intercellular adhesion molecule-1 [sICAM-1]) demonstrated a significant predictive role in terms of overall and cardiovascular survival. When 6 biomarkers (GSTM1 genotype, high AOPP/PAB/MDA/-sVCAM-1/sICAM-1) were combined into a scoring model, a significantly shorter overall and cardiovascular survival was observed for patients with the highest score (p < 0.001). Conclusion: We identified a novel panel of biomarkers that can be utilized in predicting survival in ESRD patients. This biomarker signature could enable better monitoring of patients and stratification into appropriate treatment groups. © 2019 © 2019 S. Karger AG, Basel. Copyright: All rights reserved.
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    Oxidative status parameters in children with urinary tract infection
    (2014)
    Petrovic, Stanislava (55807329900)
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    Bogavac-Stanojevic, Natasa (6506171691)
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    Kotur-Stevuljevic, Jelena (6506416348)
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    Peco-Antic, Amira (7004525216)
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    Ivanisevic, Ivana (55588798700)
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    Ivanisevic, Jasmina (54389258300)
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    Paripovic, Dusan (14621764400)
    ;
    Jelic-Ivanovic, Zorana (6603775254)
    Introduction: Urinary tract infection (UTI) is one of the most common bacterial infectious diseases in children. The aim of this study was to determine the total prooxidant and antioxidant capacity of children with UTI, as well as changes of oxidative status parameters according to acute inflammation persistence and acute kidney injury (AKI) development. Materials and methods: The patients enrolled in the study comprised 50 Caucasian children (median age was 6 months) with UTI. Total oxidant status (TOS), total antioxidant status (TAS), oxidative stress index (OSI), inflammation marker C-reactive protein (CRP) and renal function parameters urea and creatinine were analyzed in patient's serums. Results: According to duration of inflammation during UTI, TAS values were significantly higher (0.99 vs. 0.58 mmol/L, P = 0.017) and OSI values were significantly lower (0.032 vs. 0.041 AU, P = 0.037) in the subjects with longer duration of inflammation than in the subjects with shorter duration of inflammation. We did not find significant difference in basal values of oxidative status parameters according to AKI development. Conclusions: OSI values could detect the simultaneous change of TAS and TOS due to change in the oxidative-antioxidant balance during the recovery of children with UTI. TAS and OSI as markers of oxidative stress during UTI are sensitive to accompanying inflammatory condition. Further investigations are needed to evaluate whether TAS, TOS and OSI could be used to monitor disease severity in children with UTI. © Croatian Society of Medical Biochemistry and Laboratory Medicine.
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    Oxidative status parameters in children with urinary tract infection
    (2014)
    Petrovic, Stanislava (55807329900)
    ;
    Bogavac-Stanojevic, Natasa (6506171691)
    ;
    Kotur-Stevuljevic, Jelena (6506416348)
    ;
    Peco-Antic, Amira (7004525216)
    ;
    Ivanisevic, Ivana (55588798700)
    ;
    Ivanisevic, Jasmina (54389258300)
    ;
    Paripovic, Dusan (14621764400)
    ;
    Jelic-Ivanovic, Zorana (6603775254)
    Introduction: Urinary tract infection (UTI) is one of the most common bacterial infectious diseases in children. The aim of this study was to determine the total prooxidant and antioxidant capacity of children with UTI, as well as changes of oxidative status parameters according to acute inflammation persistence and acute kidney injury (AKI) development. Materials and methods: The patients enrolled in the study comprised 50 Caucasian children (median age was 6 months) with UTI. Total oxidant status (TOS), total antioxidant status (TAS), oxidative stress index (OSI), inflammation marker C-reactive protein (CRP) and renal function parameters urea and creatinine were analyzed in patient's serums. Results: According to duration of inflammation during UTI, TAS values were significantly higher (0.99 vs. 0.58 mmol/L, P = 0.017) and OSI values were significantly lower (0.032 vs. 0.041 AU, P = 0.037) in the subjects with longer duration of inflammation than in the subjects with shorter duration of inflammation. We did not find significant difference in basal values of oxidative status parameters according to AKI development. Conclusions: OSI values could detect the simultaneous change of TAS and TOS due to change in the oxidative-antioxidant balance during the recovery of children with UTI. TAS and OSI as markers of oxidative stress during UTI are sensitive to accompanying inflammatory condition. Further investigations are needed to evaluate whether TAS, TOS and OSI could be used to monitor disease severity in children with UTI. © Croatian Society of Medical Biochemistry and Laboratory Medicine.
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    The role of artichoke leaf tincture (Cynara scolymus) in the suppression of DNA damage and atherosclerosis in rats fed an atherogenic diet
    (2018)
    Bogavac-Stanojevic, Natasa (6506171691)
    ;
    Stevuljevic, Jelena Kotur (36629424300)
    ;
    Cerne, Darko (6603317701)
    ;
    Zupan, Janja (24553108300)
    ;
    Marc, Janja (7006701288)
    ;
    Vujic, Zorica (6602596481)
    ;
    Crevar-Sakac, Milkica (55635840800)
    ;
    Sopic, Miron (55807303500)
    ;
    Munjas, Jelena (57194078742)
    ;
    Radenkovic, Miroslav (7005551185)
    ;
    Jelic-Ivanovic, Zorana (6603775254)
    Context: Polyphenols and flavonoids in artichoke leaf tincture (ALT) protect cells against oxidative damage. Objectives: We examined ALT effects on deoxyribonucleic acid (DNA) damage and lipid profiles in rat plasma and gene expression in rat aorta [haemeoxygenase-1 (HO1), haemeoxygenase-2 (HO2), NADPH oxidase 4 (NOX-4), monocyte chemoattractant protein-1 (MCP-1) and nuclear factor (erythroid-derived 2)-like 2 (Nrf2)]. Materials and methods: Eighteen male Wistar albino rats were divided into three groups (n=6/group): The control group (CG) was fed with standard pellet chow for 11 weeks; the AD group was fed for a similar period of time with pellet chow supplemented with 2% cholesterol, 3% sunflower oil and 1% sodium cholate. The ADA group was fed with pellet chow (for 1 week), the atherogenic diet (see above) for the following 4 weeks and then with ALT (0.1 mL/kg body weight) and atherogenic diet for 6 weeks. According to HPLC analysis, the isolated main compounds in ALT were chlorogenic acid, caffeic acid, isoquercitrin and rutin. Results: Normalized HO-1 [0.11 (0.04-0.24)] and MCP-1 [0.29 (0.21-0.47)] mRNA levels and DNA scores [12.50 (4.50-36.50)] were significantly lower in the ADA group than in the AD group [0.84 (0.35-2.51)], p=0.021 for HO-1 [0.85 (0.61-3.45)], p=0.047 for MCP-1 and [176.5 (66.50-221.25)], p=0.020 for DNA scores. HO-1 mRNA was lower in the ADA group than in the CG group [0.30 (0.21-0.71), p=0.049]. Conclusions: Supplementation with ALT limited the effects of the atherogenic diet through reduced MCP-1 expression, thereby preventing oxidative damage. © 2018 The Author(s).
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    The role of artichoke leaf tincture (Cynara scolymus) in the suppression of DNA damage and atherosclerosis in rats fed an atherogenic diet
    (2018)
    Bogavac-Stanojevic, Natasa (6506171691)
    ;
    Stevuljevic, Jelena Kotur (36629424300)
    ;
    Cerne, Darko (6603317701)
    ;
    Zupan, Janja (24553108300)
    ;
    Marc, Janja (7006701288)
    ;
    Vujic, Zorica (6602596481)
    ;
    Crevar-Sakac, Milkica (55635840800)
    ;
    Sopic, Miron (55807303500)
    ;
    Munjas, Jelena (57194078742)
    ;
    Radenkovic, Miroslav (7005551185)
    ;
    Jelic-Ivanovic, Zorana (6603775254)
    Context: Polyphenols and flavonoids in artichoke leaf tincture (ALT) protect cells against oxidative damage. Objectives: We examined ALT effects on deoxyribonucleic acid (DNA) damage and lipid profiles in rat plasma and gene expression in rat aorta [haemeoxygenase-1 (HO1), haemeoxygenase-2 (HO2), NADPH oxidase 4 (NOX-4), monocyte chemoattractant protein-1 (MCP-1) and nuclear factor (erythroid-derived 2)-like 2 (Nrf2)]. Materials and methods: Eighteen male Wistar albino rats were divided into three groups (n=6/group): The control group (CG) was fed with standard pellet chow for 11 weeks; the AD group was fed for a similar period of time with pellet chow supplemented with 2% cholesterol, 3% sunflower oil and 1% sodium cholate. The ADA group was fed with pellet chow (for 1 week), the atherogenic diet (see above) for the following 4 weeks and then with ALT (0.1 mL/kg body weight) and atherogenic diet for 6 weeks. According to HPLC analysis, the isolated main compounds in ALT were chlorogenic acid, caffeic acid, isoquercitrin and rutin. Results: Normalized HO-1 [0.11 (0.04-0.24)] and MCP-1 [0.29 (0.21-0.47)] mRNA levels and DNA scores [12.50 (4.50-36.50)] were significantly lower in the ADA group than in the AD group [0.84 (0.35-2.51)], p=0.021 for HO-1 [0.85 (0.61-3.45)], p=0.047 for MCP-1 and [176.5 (66.50-221.25)], p=0.020 for DNA scores. HO-1 mRNA was lower in the ADA group than in the CG group [0.30 (0.21-0.71), p=0.049]. Conclusions: Supplementation with ALT limited the effects of the atherogenic diet through reduced MCP-1 expression, thereby preventing oxidative damage. © 2018 The Author(s).

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