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Ivanovic ND, Radosavljevic B, Zekovic M, Korcok D, Ignjatovic S, Djordjevic B, Milinkovic N. Effects of short-term magnesium supplementation on ionized, total magnesium and other relevant electrolytes levels. Biometals 2022; 35:267-283. [PMID: 35041150 DOI: 10.1007/s10534-022-00363-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 01/09/2022] [Indexed: 12/22/2022]
Abstract
This study aimed to investigate the short-term effects of three magnesium (Mg) dietary supplements containing mineral immediately available for absorption on Mg biochemical status indices (ionized and total Mg), as well as their effects on electrolytes levels in healthy female young adults (n = 61). After a 10-days intervention period supplementation with powder/granulate containing Mg oxide led to an increase in both ionized Mg concentration and % in total Mg in comparison with the baseline. Supplementation with Mg citrate was associated with the significant increase in % of ionized fraction and decrease in serum total Mg concentration. By contrast, among participants consuming Mg carbonate in the form of effervescent tablets ionized Mg concentration and % in total Mg decreased, without detectable changes in serum total Mg. In conclusion, after the short-term supplementation period, Mg oxide demonstrated superior bioavailability compared to the other examined Mg supplements without affecting other minerals' levels.
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Affiliation(s)
- Nevena Dj Ivanovic
- Department of Bromatology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000, Belgrade, Serbia.
| | - Branimir Radosavljevic
- Institute of Chemistry in Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Zekovic
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Davor Korcok
- Faculty of Pharmacy Novi Sad, Business Academy University in Novi Sad, Novi Sad, Serbia
| | - Svetlana Ignjatovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia.,Centar for Medical Biochemistry, Clinical Center of Serbia, Beograd, Serbia
| | - Brizita Djordjevic
- Department of Bromatology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000, Belgrade, Serbia
| | - Neda Milinkovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
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Vidojevic D, Seman S, Lasica R, Tesic M, Matutinovic MS, Jovicic S, Ignjatovic S, Arena R, Damjanovic S, Popovic D. Alpha-melanocyte-stimulating hormone during exercise recovery has prognostic value for coronary artery disease. Hormones (Athens) 2021; 20:381-387. [PMID: 33523420 DOI: 10.1007/s42000-020-00270-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/22/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE Alpha-melanocyte-stimulating hormone (alpha-MSH) has proven cardiovascular effects and plays a significant role as an endogenous countermeasure to ischemia-reperfusion injury. The aim of the current study was to examine the response of alpha-MSH during exercise in patients diagnosed with coronary artery disease (CAD) and evaluate its value in the assessment of severity and prognosis. METHODS Forty subjects with documented CAD (i.e., lesions on coronary angiography ≥ 50%) were included. Cardiopulmonary exercise testing (CPET) on a treadmill (TM) and recumbent ergometer (RE) were performed on two visits, 2-4 days apart, during 2 months of coronary angiography; subsequently, the subjects were followed up for 32 ± 10 months. At rest, at peak CPET, and after 3 min of recovery, plasma levels of alpha-MSH were measured by enzyme-linked immunosorbent assay technique. RESULTS Mean ejection fraction was 56.7 ± 9.6%. Alpha-MSH similarly increased from rest to peak CPET on both modalities. There were no significant differences in alpha-MSH values during testing in patients with 1,2- and 3-vesel CAD, nor in patients with a SYNTAX score </≥ 23 (p > 0.05). Among CPET and hormonal parameters, ∆alpha-MSH recovery/peak during RE CPET was the best predictor of cardiac event occurrence (chi-square 6.67, HR = 0.51, CI = 0.25-1.02, p = 0.010). CONCLUSION ∆alpha-MSH recovery/peak during RE CPET has predictive value for CAD prognosis, demonstrating involvement of alpha-MSH in CAD and a link between stress hormones and cardiac events.
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Affiliation(s)
- Dejana Vidojevic
- Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, 11000, Serbia
| | - Stefan Seman
- Faculty of Sport and Physical Education, Balgoja Parovica 156, Belgrade, 11000, Serbia
| | - Ratko Lasica
- Division of Cardiology, University of Belgrade, Visegradska 26, Belgrade, 11000, Serbia
| | - Milorad Tesic
- Division of Cardiology, University of Belgrade, Visegradska 26, Belgrade, 11000, Serbia
| | | | - Snezana Jovicic
- Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, 11000, Serbia
| | - Svetlana Ignjatovic
- Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, 11000, Serbia
| | - Ross Arena
- Department of Physical Therapy, College of Applied Health Sciences, University of Illinois at Chicago, 1919 W. Taylor St, Chicago, IL, 60612, USA
| | - Svetozar Damjanovic
- Division of Endocrinology, Clinical Center of Serbia, University of Belgrade, Dr Subotica 13, Belgrade, 11000, Serbia
| | - Dejana Popovic
- Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, 11000, Serbia.
- Division of Cardiology, University of Belgrade, Visegradska 26, Belgrade, 11000, Serbia.
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Radosavljevic B, Ignjatovic S. Significance of determination of ionized magnesium in acute myocardial infarction. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Blagojevic IP, Eror T, Pelivanovic J, Jelic S, Kotur-Stevuljevic J, Ignjatovic S. Women with Polycystic Ovary Syndrome and Risk of Cardiovascular Disease. J Med Biochem 2017; 36:259-269. [PMID: 30568543 PMCID: PMC6287215 DOI: 10.1515/jomb-2017-0020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 04/02/2017] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is associated with reproductive and metabolic abnormalities. The aim of this study was to analyse risk of cardiovascular disease (CVD) in PCOS, to define individual risk factors and assess their ability to predict risk. METHODS Fifty-four young women with PCOS (22 obese and 32 normal weight) were compared to 46 respective controls (17 obese and 29 normal weight). Anthropometric parameters, lipid status parameters, inflammation markers, concentrations of glucose, transaminases, sex and anterior pituitary hormones, sex hormone binding globulin (SHBG) and androgens were measured. Cardiovascular Risk Score (CVRS), indices for identifying Non-Alcoholic Fatty Liver Disease (NAFLD) and the Index of Central Obesity (ICO) were calculated. RESULTS Significantly higher CVRS values (p<0.05) were found in obese PCOS women compared to normal weight control and normal weight PCOS groups. Anthropometric parameters, lipid status parameters and fibrinogen (p<0.001, p<0.01) were higher in women with higher CVRS. The most significant CVRS predictors in all PCOS women were SHBG, androstenedione, follicle-stimulating hormone (FSH) and dehydroepiandrosterone sulphate (DHEAS). ICO and all NAFLD indices exhibited significant positive correlation with CVRS and a model consisting of these indices provided good diagnostic accuracy (AUC>0.8) in identifying patients with increased cardiovascular risk (CVR). CONCLUSIONS Obesity is a higher risk for developing CVD than PCOS alone. Anthropometric parameters, lipid parameters, fibrinogen, NAFLD indices and ICO increase CVR in PCOS women. For the prediction of CVR in PCOS, we suggest a combination of NAFLD indices and ICO.
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Affiliation(s)
- Iva Perovic Blagojevic
- Department of Laboratory Diagnostic, Clinical Hospital Center »Dr Dragisa Misovic – Dedinje«, Belgrade, Serbia
| | - Tatjana Eror
- Clinic of Internal Medicine, Clinical Hospital Center »Dr Dragisa Misovic – Dedinje«, Belgrade, Serbia
| | - Jovana Pelivanovic
- Department for Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Svetlana Jelic
- University Hospital Medical Center »Bezanijska kosa«, Belgrade, Serbia
| | - Jelena Kotur-Stevuljevic
- Department for Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Svetlana Ignjatovic
- Department for Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
- Center for Medical Biochemistry, Clinical Center Serbia, Belgrade, Serbia
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Popovic D, Damjanovic S, Djordjevic T, Martic D, Ignjatovic S, Milinkovic N, Banovic M, Lasica R, Petrovic M, Guazzi M, Arena R. Stress hormones at rest and following exercise testing predict coronary artery disease severity and outcome. Stress 2017; 20:523-531. [PMID: 28845719 DOI: 10.1080/10253890.2017.1368488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Despite considerable knowledge regarding the importance of stress in coronary artery disease (CAD) pathogenesis, its underestimation persists in routine clinical practice, in part attributable to lack of a standardized, objective assessment. The current study examined the ability of stress hormones to predict CAD severity and prognosis at basal conditions as well as during and following an exertional stimulus. MATERIALS AND METHODS Forty Caucasian subjects with significant coronary artery lesions (≥50%) were included. Within 2 months of coronary angiography, cardiopulmonary exercise testing (CPET) on a recumbent ergometer was performed in conjunction with stress echocardiography (SE). At rest, peak and after 3 min of recovery following CPET, plasma levels of cortisol, adrenocorticotropic hormone (ACTH) and NT-pro-brain natriuretic peptide (NT-pro-BNP) were measured by immunoassay sandwich technique, radioimmunoassay, and radioimmunometric technique, respectively. Subjects were subsequently followed a mean of 32 ± 10 months. RESULTS AND DISCUSSION Mean ejection fraction was 56.7 ± 9.6%. Subjects with 1-2 stenotic coronary arteries (SCA) demonstrated a significantly lower plasma cortisol levels during CPET compared to those with 3-SCA (p < .05), whereas ACTH and NT-pro-BNP were not significantly different (p > .05). Among CPET, SE, and hormonal parameters, cortisol at rest and during CPET recovery demonstrated the best predictive value in distinguishing between 1-, 2-, and 3-SCA [area under ROC curve 0.75 and 0.77 (SE = 0.11, 0.10; p = .043, .04) for rest and recovery, respectively]. ΔCortisol peak/rest predicted cumulative cardiac events (area under ROC curve 0.75, SE = 0.10, p = .049). CONCLUSIONS Cortisol at rest and following an exercise test holds predictive value for CAD severity and prognosis, further demonstrating a link between stress and unwanted cardiac events.
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Affiliation(s)
- Dejana Popovic
- a Division of Cardiology , University of Belgrade , Belgrade , Serbia
- b Faculty of Pharmacy , University of Belgrade , Belgrade , Serbia
| | | | - Tea Djordjevic
- b Faculty of Pharmacy , University of Belgrade , Belgrade , Serbia
| | - Dejana Martic
- b Faculty of Pharmacy , University of Belgrade , Belgrade , Serbia
| | | | - Neda Milinkovic
- b Faculty of Pharmacy , University of Belgrade , Belgrade , Serbia
| | - Marko Banovic
- a Division of Cardiology , University of Belgrade , Belgrade , Serbia
| | - Ratko Lasica
- a Division of Cardiology , University of Belgrade , Belgrade , Serbia
| | - Milan Petrovic
- a Division of Cardiology , University of Belgrade , Belgrade , Serbia
| | - Marco Guazzi
- d Heart Failure Unit and Cardiopulmonary Laboratory, Cardiology , I.R.C.C.S, Policlinico San Donato University Hospital , Milan , Italy
| | - Ross Arena
- e Department of Physical Therapy, College of Applied Health Sciences , University of Illinois Chicago , Chicago , IL , USA
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Mirjanic-Azaric B, Avram S, Stojakovic-Jelisavac T, Stojanovic D, Petkovic M, Bogavac-Stanojevic N, Ignjatovic S, Stojanov M. Direct Estimation of Reference Intervals for Thyroid Parameters in the Republic of Srpska. J Med Biochem 2017; 36:137-144. [PMID: 28680357 PMCID: PMC5471646 DOI: 10.1515/jomb-2017-0008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 02/03/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The aim of this study was to determine the reference values for thyrotropin (TSH), thyroid hormones (total and free thyroxine, T4 and fT4; total and free triiodothyronine, T3 and fT3), thyroglobulin (Tg) and thyroid antibodies (thyroid peroxidase, TPOAb and thyroglobulin antibody, TgAb) in the population of the Republic of Srpska. METHODS A total of 250 euthyroid subjects were enrolled in this study. A direct method for choosing reference subjects was used to establish reference intervals. The hormones and thyroid antibodies were measured by an electrochemiluminescence immunoassay method (ECLIA, Roche Diagnostics, Mannheim, Germany). We calculated the reference intervals by MedCalc, version 12.1.4.0 (MedCalc software, Belgium) as recommended by the IFCC (CLSI C28-A3). RESULTS Using guidelines recommended by the National Academy of Clinical Biochemistry (NACB) and based on standard statistical approaches, the reference intervals derived for TSH, fT4, T4, fT3, T3 were 0.75-5.32 mIU/L, 12.29-20.03 pmol/L, 73.49-126,30 nmol/L, 4.11-6.32 pmol/L, 1.15-2.32 nmol/L and for Tg, TPOAb, TgAb were 3.63-26.00 μg/L, <18.02 mIU/L, < 98.00 mIU/L, respectively. We found a significant difference (p<0.05) in TSH and fT3 values between different age groups as well as in T4, fT4 and fT3 values between ge nder groups. CONCLUSIONS The established reference values for the population of the Republic of Srpska were significantly different from the values recommended by the manufacturer of reagents (Roche Diagnostics). Our results showed that a laboratory needs to establish its own reference values in order to set up a proper diagnosis, as well as to treat patients successfully.
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Affiliation(s)
- Bosa Mirjanic-Azaric
- University Clinical Centre of the Republic of SrpskaBanja Luka, Bosnia and Herzegovina, Serbia
| | - Sanja Avram
- University Clinical Centre of the Republic of SrpskaBanja Luka, Bosnia and Herzegovina, Serbia
| | | | - Darja Stojanovic
- Health Centre Laktasi, the Republic of Srpska, Bosnia and HerzegovinaSerbia
| | - Mira Petkovic
- Institute for Sport and Occupational Medicine Banja Luka, Bosnia and HerzegovinaSerbia
| | | | - Svetlana Ignjatovic
- Institute of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Serbia
- Center for Medical Biochemistry, Clinical Center of Serbia, Belgrade, Serbia
| | - Marina Stojanov
- Institute of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Serbia
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Backovic D, Ignjatovic S, Rakicevic L, Novkovic M, Kusic-Tisma J, Radojkovic D, Strugarevic E, Calija B, Radak D, Kovac M. Clopidogrel High On-Treatment Platelet Reactivity in Patients with Carotid Artery Stenosis Undergoing Endarterectomy. A Pilot Study. Curr Vasc Pharmacol 2016; 14:563-569. [DOI: 10.2174/1570161114666160714103148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 05/30/2016] [Accepted: 06/29/2016] [Indexed: 11/22/2022]
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Cuturilo G, Vucinic OK, Novakovic I, Ignjatovic S, Mijovic M, Sulovic N, Vukolic D, Komnenic M, Tadic J, Cetkovic A, Belic A, Ljubic A. Clients’ Perception of Outcome of Team-Based Prenatal and Reproductive Genetic Counseling in Serbian Service Using the Perceived Personal Control (PPC) Questionnaire. J Genet Couns 2015; 25:189-97. [DOI: 10.1007/s10897-015-9857-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 06/29/2015] [Indexed: 10/23/2022]
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Culafić D, Djonic D, Culafic-Vojinovic V, Ignjatovic S, Soldatovic I, Vasic J, Beck TJ, Djuric M. Evidence of degraded BMD and geometry at the proximal femora in male patients with alcoholic liver cirrhosis. Osteoporos Int 2015; 26:253-9. [PMID: 25172381 DOI: 10.1007/s00198-014-2849-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 08/10/2014] [Indexed: 02/06/2023]
Abstract
UNLABELLED We examined the association of alcoholic cirrhosis in 33 patients with areal bone mineral density (BMD) and the assessed bone geometric strength of their proximal femora. Lower areal BMD, cross-sectional area and section modulus, thinner cortex, and higher buckling ratio suggest that the alcoholic liver cirrhosis is associated with lower measures of bone strength. INTRODUCTION Hepatic bone disease is an important complication of chronic liver disease and is associated with significant morbidity through fractures resulting in pain, deformity, and immobility. In this study, we examined the association of alcoholic cirrhosis and liver insufficiency stage with areal bone mineral density (aBMD) and additionally employed hip structure analysis (HSA) as an advanced method to assess bone geometric strength of the proximal femur in men with alcoholic liver cirrhosis. METHODS The study included 33 male patients with alcoholic liver cirrhosis and a control group of 36 healthy patients. Laboratory testing included the following biochemical markers of bone turnover: serum levels of osteocalcin and C-telopeptide of type 1 collagen. Areal BMD was measured by dual x-ray absorptiometry on the proximal femora. Structural parameters were then derived from these scans using hip structure analysis software. RESULTS After adjusting for age, body height, and weight, we found lower cross-sectional area (p = 0.005) and section modulus (p = 0.005), thinner cortex (p = 0.012), and higher buckling ratio (p = 0.043) in the neck region among patients with cirrhosis. The findings suggest that alcoholic liver cirrhosis is associated with lower measures of bone strength. These findings were consistent with decreased osteocalcin values and increased C-telopeptide of type 1 collagen in patients with cirrhosis, indicating reduction in bone formation and increased bone resorption. CONCLUSION Our results emphasize that HSA-derived structural indices of proximal femoral structure may be an important index of greater fragility in patients with alcoholic cirrhosis.
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Affiliation(s)
- Dj Culafić
- Clinic of Gastroenterology, Clinical Center of Serbia, School of Medicine, University of Belgrade, Belgrade, Serbia
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Popovic D, Plecas-Solarovic B, Pesic V, Petrovic M, Vujisic-Tesic B, Popovic B, Ignjatovic S, Ristic A, Damjanovic SS. How does stress possibly affect cardiac remodeling? Peptides 2014; 57:20-30. [PMID: 24751938 DOI: 10.1016/j.peptides.2014.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/05/2014] [Accepted: 04/07/2014] [Indexed: 01/20/2023]
Abstract
The aim of this study was to evaluate the predictive value of adrenocorticotropic hormone (ACTH), cortisol and ACTH receptor polymorphism (ACTHRP) for left ventricular (LV) remodeling. Thirty-six elite male athletes, as chronic stress adaptation models, and twenty sedentary age and sex-mached subjects emabarked on standard and tissue Doppler echocardiography to assess cardiac parameters at rest. They performed maximal cardiopulmonary test, which was used as an acute stress model. ACTH and cortisol were measured at rest (10min before test), at beginning, at maximal effort, at 3rd min of recovery, using radioimmunometric and radioimmunoassey techniques, respectively. Promoter region of ACTHR gene (18p11.2) was analysed from blood samples using reverse polymerization reaction with the analysis of restriction fragment length polimorphisam by SacI restriction enzyme. Normal genotype was CTC/CTC, heterozygot for ACTHRP CTC/CCC and homozygot CCC/CCC. In all participants, ACTH and cortisol increased during acute stress, whereas in recovery ACTH increased and cortisol remained unchanged. 49/56 examiners manifested CTC/CTC, 7/56 CTC/CCC and 0/56 CCC/CCC. There was no difference in ACTHRP frequency between groups (χ(1)(2)=0.178, p=0.67). LV mass (LVM) and LV end-diastolic volume (LVVd) were higher in athletes than in controls (p<0.01) and lower in CTC/CTC than in CTC/CCC genotype (219.43±46.59(SD)g vs. 276.34±48.86(SD)g, p=0.004; 141.24±24.46(SD)ml vs. 175.29±37.07(SD)ml, p=0.002; respectively). In all participants, predictors of LVM and LVVd were ACTH at rest (B=-1.00,-0.44; β=-0.30,-0.31; p=0.026,0.012, respectively) and ACTHRP (B=56.63,34; β=0.37,0.40; p=0.003,0.001, respectively). These results demonstrate that ACTH and ACTHRP strongly predict cardiac morphology suggesting possible regulatory role of stress system activity and sensitivity in cardiac remodeling.
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Affiliation(s)
- Dejana Popovic
- Division of Cardiology, Faculty of Medicine, University of Belgrade, Visegradska 26, 11000 Belgrade, Serbia.
| | - Bosiljka Plecas-Solarovic
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Vesna Pesic
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Milan Petrovic
- Division of Cardiology, Faculty of Medicine, University of Belgrade, Visegradska 26, 11000 Belgrade, Serbia
| | - Bosiljka Vujisic-Tesic
- Division of Cardiology, Faculty of Medicine, University of Belgrade, Visegradska 26, 11000 Belgrade, Serbia
| | - Bojana Popovic
- Division of Endocrinology, Faculty of Medicine, University of Belgrade, Dr Subotica 13, 11000 Belgrade, Serbia
| | - Svetlana Ignjatovic
- Division of Cardiology, Faculty of Medicine, University of Belgrade, Visegradska 26, 11000 Belgrade, Serbia
| | - Arsen Ristic
- Division of Cardiology, Faculty of Medicine, University of Belgrade, Visegradska 26, 11000 Belgrade, Serbia
| | - Svetozar S Damjanovic
- Division of Endocrinology, Faculty of Medicine, University of Belgrade, Dr Subotica 13, 11000 Belgrade, Serbia
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Banovic M, Vujisic-Tesic B, Bojic S, Mladenovic A, Ignjatovic S, Petrovic M, Trifunovic D, Nedeljkovic I, Popovic D, Callahan M, Seferovic P. Diagnostic value of NT-proBNP in identifying impaired coronary flow reserve in asymptomatic moderate or severe aortic stenosis. Biomark Med 2013; 7:221-7. [PMID: 23547817 DOI: 10.2217/bmm.12.100] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
AIM NT-proBNP has been shown to be a reliable biochemical marker for left ventricular wall stress. The relationship between NT-proBNP and coronary flow reserve (CFR) was evaluated in patients with significant asymptomatic aortic stenosis (AS). METHODS A total of 74 patients with moderate or severe AS, mean age 66.68 ± 10.02 years (56.75% males), were enrolled in this prospective study. All patients underwent coronary angiography and had no obstructive coronary disease (defined as having no stenosis >50% in diameter). They had all undergone standard transthoracic Doppler-echo study and adenosine stress transthoracic-echo for CFR measurement and laboratory analysis for NT-proBNP measurement. RESULTS The median NT-proBNP value was significantly increased (417.0 pg/ml; interquartile range [IQR]: 176.8-962.2 pg/ml). NT-proBNP was significantly higher in the group with CFR ≤2.5 (median: 549.0 pg/ml; IQR: 311.5-1131.0 pg/ml; as opposed to median: 291.5 pg/ml; IQR: 123.0-636.2 pg/ml; W = 452; p = 0.012). NT-proBNP showed significant negative correlation with CFR (ρ = -0.377, p = 0.001). There was also significant correlation between NT-proBNP and E/E´, S´ and aortic valve resistance. The NT-proBNP value of 334.00 pg/ml was determined as the best cut-off value for the diagnosis of CFR ≤2.5 (area under the curve: 0.67; 95%CI: 0.54-0.79; p < 0.01) and the sensitivity and specificity were 74 and 64%, respectively. CONCLUSION Elevated NT-proBNP can indicate patients with impaired CFR in asymptomatic moderate or severe AS patients with preserved ejection fraction and nonobstructive coronary arteries.
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Affiliation(s)
- Marko Banovic
- Clinical Centre of Serbia, Cardiology Clinic, Belgrade Medical School, Serbia.
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Dobric M, Giga V, Beleslin B, Ignjatovic S, Paunovic I, Stepanovic J, Djordjevic-Dikic A, Kostic J, Nedeljkovic I, Nedeljkovic M, Tesic M, Dajak M, Ostojic M. Glycogen phosphorylase isoenzyme BB plasma kinetics is not related to myocardial ischemia induced by exercise stress echo test. Clin Chem Lab Med 2013; 51:2029-35. [PMID: 23729628 DOI: 10.1515/cclm-2013-0109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Accepted: 05/05/2013] [Indexed: 11/15/2022]
Abstract
BACKGROUND Glycogen phosphorylase BB (GPBB) is released from cardiac cells during myocyte damage. Previous studies have shown contradictory results regarding the relation of enzyme release and reversible myocardial ischemia. The aim of this study was to determine the plasma kinetics of GPBB as a response to the exercise stress echocardiographic test (ESET), and to define the relationship between myocardial ischemia and enzyme plasma concentrations. METHODS We studied 46 consecutive patients undergoing ESET, with recent coronary angiography. In all patients, a submaximal stress echo test according to Bruce protocol was performed. Concentration of GPBB was measured in peripheral blood that was sampled 5 min before and 10, 30 and 60 min after ESET. RESULTS There was significant increase of GPBB concentration after the test (p=0.021). Significant increase was detected 30 min (34.9% increase, p=0.021) and 60 min (34.5% increase, p=0.016) after ESET. There was no significant effect of myocardial ischemia on GPBB concentrations (p=0.126), and no significant interaction between sampling intervals and myocardial ischemia, suggesting a similar release profile of GPBB in ischemic and non-ischemic conditions (p=0.558). Patients in whom ESET was terminated later (stages 4 or 5 of standard Bruce protocol; n=13) had higher GPBB concentrations than patients who terminated ESET earlier (stages 1, 2 or 3; n=33) (p=0.049). Baseline GPBB concentration was not correlated to any of the patients' demographic, clinical and hemodynamic characteristics. CONCLUSIONS GPBB plasma concentration increases after ESET, and it is not related to inducible myocardial ischemia. However, it seems that GPBB release during ESET might be related to exercise load/duration.
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Mitrovic M, Sumarac Z, Antic D, Bogdanovic A, Elezovic I, Vukosavljevic D, Ignjatovic S, Majkic-Singh N, Suvajdzic N. Markers of coagulation activation and enhanced fibrinolysis in Gaucher type 1 patient: Effects of enzyme replacement therapy. Blood Cells Mol Dis 2012; 49:58-9. [DOI: 10.1016/j.bcmd.2012.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Revised: 12/04/2011] [Accepted: 02/25/2012] [Indexed: 11/30/2022]
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Stankovic S, Asanin M, Majkic-Singh N, Ignjatovic S, Mihailovic M, Nikolajevic I, Mrdovic I, Matic D, Savic L, Marinkovic J, Ostojic M, Vasiljevic Z. The usefulness of myeloperoxidase in prediction of in-hospital mortality in patients with ST-segment elevation myocardial infarction treated by primary percutaneous coronary intervention. Clin Lab 2012; 58:125-131. [PMID: 22372355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND The predictive value of myeloperoxidase (MPO) in ST-segment elevation myocardial infarction (STEMI) treated by primary percutaneous coronary intervention (PCI) has not been established. The aim of the present study was to investigate MPO as a predictor of in-hospital mortality in STEMI patients treated by primary PCI. METHODS Study population consisted of 189 STEMI patients having undergone primary PCI. Plasma MPO level was measured 24 hours after symptom onset using chemiluminescent microparticle immunoassay (Abbott Diagnostics, Germany). The Receiver Operating Characteristic analysis was performed to identify the most useful MPO cut-off level for the prediction of in-hospital mortality. The patients were divided into two groups according to the cut-off MPO level: high MPO group (> or = 840 pmol/L, n = 65) and low MPO group (< 840 pmol/L, n = 124). RESULTS The high MPO group had significantly more frequent anterior wall infarctions (p < 0.001) and Killip class > 1 on admission (p = 0.013) as well as lower left ventricular ejection fraction (LVEF) (p = 0.011) and higher B-type natriuretic peptide (BNP) (p = 0.029) than the low MPO group. The incidence of in-hospital mortality was 5.8% and was significantly higher in the high MPO group (13.8%) than in the low MPO group (1.6%) (p = 0.001). Multiple logistic regression analysis identified the plasma MPO level as an independent predictor of in-hospital mortality (OR 3.88, 95% CI 1.13 - 13.34, p = 0.031). CONCLUSIONS Plasma MPO level independently predicts in-hospital mortality in STEMI patients treated by primary PCI.
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Affiliation(s)
- Sanja Stankovic
- Center for Medical Biochemistry, School of Pharmacy, University ofBelgrade, Clinical Center of Serbia, Belgrade, Serbia.
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Stankovic S, Asanin M, Trifunovic D, Majkic-Singh N, Miljković A, Ignjatovic S, Mrdovic I, Matic D, Savic L, Ostojic M, Vasiljevic Z. Utility of lipoprotein-associated phospholipase A2 for prediction of 30-day major adverse coronary event in patients with the first anterior ST-segment elevation myocardial infarction treated by primary percutaneous coronary intervention. Clin Lab 2012; 58:1135-1144. [PMID: 23289182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Lipoprotein-associated phospholipase A2 (Lp-PLA2) has been suggested as an inflammatory marker of cardiovascular risk. The predictive value of Lp-PLA2 in ST-segment elevation myocardial infarction (STEMI) treated by primary percutaneous coronary intervention (PCI) has not been established. The aim of this study was to determine whether plasma Lp-PLA2 is a predictor of a major adverse cardiac event (MACE) in patients with the first anterior STEMI treated by primary PCI. METHODS This study consisted of 100 consecutive patients with first anterior STEMI who underwent primary PCI within 6 hours of the symptom onset. Plasma Lp-PLA2 level was measured on admission using a turbidimetric immunoassay (diaDexus, Inc., USA). The Receiver Operating Characteristic analysis was performed to identify the most useful Lp-PLA2 cut-off level for the prediction of MACE. The patients were divided into two groups according to the cut-off Lp-PLA2 level: high Lp-PLA2 group (> or = 463 ng/mL, n = 33) and low Lp-PLA2 group (< 463 ng/mL, n = 67). MACE was defined as cardiac death, non-fatal reinfarction, and target vessel revascularization. RESULTS Patients in the high Lp-PLA2 group had significantly higher total-, LDL-cholesterol, apolipoprotein B levels, and significantly lower estimated glomerular filtration rates compared with the low Lp-PLA2 group. The incidence of 30-day mortality was 18.2% (6/33) in high Lp-PLA2 group, while in the low Lp-PLA2 group no patient died (p < 0.001). The 30-day MACE occurred in 24.2% of the high Lp-PLA2 group and 3% of the low Lp-PLA2 group (p = 0.001). Multiple logistic regression analysis identified the plasma Lp-PLA2 level as an independent predictor of MACE (OR 1.011, 95%CI 1.001 - 1.013, p = 0.037). CONCLUSIONS In patients with first anterior STEMI treated by primary PCI, the plasma Lp-PLA2 level is an independent predictor of 30-day MACE.
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Affiliation(s)
- Sanja Stankovic
- Center for Medical Biochemistry, School of Pharmacy, University of Belgrade, Clinical Center of Serbia, Belgrade, Serbia.
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Abstract
BACKGROUND Pathogenesis of perinatal hypoxic-ischemic brain injury (HIE) is complex. In this study, we examined the role of neuroinflammation, oxidative stress and growth factors in perinatal hypoxic-ischemic brain damage. METHODS Ninety neonates (>32 weeks' gestation) with perinatal HIE were enrolled prospectively. Perinatal HIE was categorized into three stages according to the Sarnat and Sarnat clinical scoring system and changes seen on amplitude integrated electroencephalography. Cerebrospinal fluid (CSF) for interleukin-6 (IL-6) and glutathione peroxidase analysis was taken in the first 48 h of life and subsequent CSF for neuron-specific enolase (NSE) and vascular endothelial growth factor (VEGF) analysis 72 h after birth. Neurodevelopmental outcome was assessed at 12 months of corrected gestational age using the Denver Developmental Screening Test. RESULTS Concentrations of NSE in CSF correlated with severity of HIE (P < 0.0001) and corresponded well with subsequent neurodevelopmental outcome. Concentrations of IL-6 in CSF were markedly increased in neonates with severe HIE (P < 0.0001) and those with subsequent neurological sequels, but were normal in the majority of neonates with mild and moderate HIE. Glutathione peroxidase activity in CSF was significant with the stage of HIE (P < 0.0001) and gestational age (P < 0.0001) and corresponded well with subsequent neurodevelopmental outcome. Advanced stage of HIE was associated with increased concentrations of VEGF in CSF (P < 0.0001). Neurological outcomes at 12 months of age correlated best with CSF level of NSE (P < 0.001) and IL-6 (P < 0.001). CONCLUSION Our results suggest that neuroinflammation plays a principal role in perinatal hypoxic-ischemic brain damage and we postulate that oxidative stress and upregulation of VEGF might be important contributing factors in the pathogenesis of hypoxic-ischemic brain injury, particularly in preterm neonates.
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Affiliation(s)
- Brankica Vasiljevic
- Department of Neonatology, Institute of Gynecology and Obstetrics - Clinical Centre of Serbia, Belgrade, Serbia.
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Becarevic M, Seferovic J, Ignjatovic S, Singh S, Majkic-Singh N. Significant association of antiphospholipid antibodies and TNF-alpha: marker of severe atherogenic profile of patients with type II diabetes mellitus without micro and/or macrovascular complications. Cytokine 2011; 55:301-6. [PMID: 21621418 DOI: 10.1016/j.cyto.2011.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 04/19/2011] [Accepted: 05/03/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE In vitro, stimulation of monocytes with antiphospholipid (aPL) antibodies resulted in increased secretion of TNF-alpha, but association of aPL with features of diabetes mellitus is not clarified yet. Therefore, we investigated the distribution of anticardiolipin (aCL), anti-β2gpI (aβ2gpI), anti-annexin A5 (aannxA5), and anti-oxLDL (aoxLDL) antibodies, and TNF-alpha in well-formed group of 78 patients with type II diabetes mellitus without vascular complications. METHODS Investigated antibodies and TNF-alpha concentrations were measured by ELISA. RESULTS Antiphospholipid antibodies were in positive correlation with TNF-alpha concentrations: aCL IgG (r=0.303, p=0.007), aCL IgM (r=0.386, p=0.000), aβ2gpI IgG (r=0.499, p=0.000), aβ2gpI IgM (r=0.462, p=0.000), aanxA5 IgG (r=0.479, p=0.000), aanxA5 IgM (r=0.641, p=0.000), aoxLDL (IgG+IgM, r=0.279, p=0.000). Anticardiolipin-positive and aCL-negative subgroups differed in TNF-alpha concentrations (Mann-Whitney, p=0.032). Significantly elevated LDL concentrations were noticed in aCL-positive patients with disease duration 10-15 years (χ(2)=15.000, p=0.000) and apoB concentrations were elevated in aoxLDL-positive patients with disease duration 7-10 years (χ(2)=3.938, p=0.047). CONCLUSION Significant association of antiphospholipid antibodies and TNF-alpha might be a marker of severe atherogenic profile (suggested by increased levels of lipids in aPL-positive subgroups) and should be used for the stratification of patients with an increased risk for future deterioration of the disease.
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Bartolovic D, Ignjatovic S, Stankovic S, Nada Majkić S. Procalcitonin and Other Biomarkers of Sepsis in Newborns in the Intensive Care Unit. EJIFCC 2011; 22:24-30. [PMID: 27683386 PMCID: PMC4975328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Neonatal sepsis is one of the most significant causes of mortality and morbidity in infants. Among numerous parameters available to confirm the presence of sepsis in newborns procalcitonin (PCT) has been chosen. The aim of this study was the determination of PCT, C-reactive protein (CRP) serum amyloid A (SAA), plasminogen, protein C, antithrombin III (AT III) and white blood cell count (WBC) in blood sample obtained by puncture of the umbilical vein. Sixty two newborn infants were included in the study: 31 with suspected bacterial infection and 31 healthy babies Serum procalcitonin was measured using Kryptor analyzer (Brahms Aktiengesellschaft, Germany); serum hsCRP and SAA on the Behring Nephelometer II (Dade Behring Diagnostics GmbH, Marburg, Germany); plasma plasminogen, protein C and AT III on BCT Coagulation system, (Dade Behring Diagnostics GmbH, Marburg, Germany); and WBC count was determined in the whole blood using hematological analyzer ADVIA 120 Hematology System (Bayer, Germany). The obtained mean values of PCT, hsCRP, SAA, WBC, plasminogen, AT III, protein C in newborn's samples with suspected bacterial infection/healthy newborns were: 0.188 ng/L / 0.121 ng/L; 1.20 mg/L / 1.30 mg/L, 1.28% / 1.70%; 16.0 x 10(9)/L/12.0 x 10(9) / L, 61.0% / 59.0%, 52.0% / 64.5%, 39.0% / 41.0%, respectively. Neonates with bacterial infection had significantly higher values of PCT (p <0.001), WBC (p <0.001) and CRP (p <0.05) compared to healthy babies. Based on these results, it may be concluded that procalcitonin is useful for early diagnosis of sepsis in newborns.
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Pesic V, Marinkovic P, Janac B, Ignjatovic S, Popic J, Kanazir S, Ruzdijic S. Changes of behavioral parameters during long-term food restriction in middle-aged Wistar rats. Physiol Behav 2010; 101:672-8. [PMID: 20713076 DOI: 10.1016/j.physbeh.2010.08.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Revised: 07/21/2010] [Accepted: 08/09/2010] [Indexed: 10/19/2022]
Abstract
Food restriction (FR) has a beneficial effect on aging process and exerts a significant effect on the responses of rodents to standard behavioral tasks. The aim of this study was to assess the cumulative influence of FR on the behavioral and biochemical parameters in Wistar rats. Six-month-old rats were subjected to restrictive feeding (50% of the daily food intake, every-other-day feeding regimen) for one month or for six months until ages of 7 and 12months, respectively. We examined the habituation of exploratory movement, amphetamine (AMPH)-induced motor activity, as well as changes in serum corticosterone (CORT) and glucose levels. The results obtained from FR animals were compared with ad libitum (AL)-fed age-matched control rats. Habituation of motor activity was only affected by six months of restrictive feeding. The sensitization of the motor response to AMPH that was observed in animals exposed to FR for one month was not observed in animals that were exposed to the same feeding regimen for six months. Serum CORT was increased and serum glucose was decreased in both FR groups. These results clearly show that despite the similarity of the biochemical changes that were induced by one and six months of FR, the nature of the changes in motor activities in these two groups of animals during habituation and after AMPH treatment was different. Our findings indicate that long-term FR has complex behavioral consequences that need to be carefully evaluated with respect to animal age, duration of FR and severity of the diet.
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Affiliation(s)
- Vesna Pesic
- Institute for Biological Research, Department of Neurobiology, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
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