Snezana Polovina

Prof. Snezana Polovina

Clinic for Endocrinology, Diabetes and Diseases of Metabolism, Clinical Center of Serbia,
+2
orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 January 2017 in Hormones
Verified
Journal Article
Closed access
SPSnezana Polovina
Snezana Polovina
DMDragana Miljic
Dragana Miljic
SZSladjana Zivojinovic
Sladjana Zivojinovic
NMNatasa Milic
Natasa Milic
DMDragan Micic
Dragan Micic
VBVera Popovic Brkic
Vera Popovic Brkic
Skeletal development, linear growth, cartilage biology and bone turnover are highly dependent on the activity of thyroid hormones. Thyroid dysfunction affects the skeleton, and autoimmune thyroid disease, manifesting as a chronic inflammatory condition, may be an important contributing factor to impaired bone quality in these patients. Measurement of TSH, FT4, TPOAb and bone mineral density and FRAX score calculations were performed in 189 postmenopausal women (110 euthyroid women and 79 women diagnosed with subclinical hypothyroidism) divided into subgroups according to the presence of TPOAb. In multivariate logistic regression analysis only TPOAb were found to be significantly related to fracture, independently of TSH values (p=0.018; OR=7.800; 95% CI 1.424-42.721). Lower bone mineral density and FRAX score for hip and for major osteoporotic fractures were associated with the presence of TPOAb in euthyroid postmenopausal women in an unadjusted logistic regression model, as well as in a model adjusted for age, BMI and smoking. TSH was a better predictive factor for fractures in women with subclinical hypothyroidism (FRAX main p <0.001; 95% CI for SE 0.858-0.959 and FRAX hip p <0.001; 95% CI for SE 0.628-0.854). Autoimmune thyroid disease is associated with decreased bone mineral density at both spine and hip and risk of future fracture incidence in euthyroid postmenopausal women. Presence of TPOAb is a potential marker of higher fracture risk in these patients. However, in subclinical hypothyroidism, TSH is a better indicator of future fragility fractures than TPOAb.

1 January 2021 in Srpski arhiv za celokupno lekarstvo
Verified
Journal Article
Open access
PDF file
BPBiljana Parapid
Biljana Parapid
VKVladimir Kanjuh
Vladimir Kanjuh
VKVladimir Kostic
Vladimir Kostic
SPSnezana Polovina
Snezana Polovina
MDMilan Dinic
Milan Dinic
WKWenger Nanette Kass
Wenger Nanette Kass
Cardiovascular and reproductive health of women have been going hand in hand since the dawn of time, yet links have been poorly studied. Still, once basis of their connections started to be established, it depended on local regional abilities and level of progressive thinking to afford women comprehensive care beyond the ?bikini medicine?. Further research identified different associations rendering more conditions sex-specific and launching therefore a slow, yet initial turn around in clinical trials? concept as the majority of global cardiovascular guidelines rely on the results of research conducted on a very modest percentage of women and even less on the women of color. Currently, the concept of women?s heart centers varies depending on the local demographics? guided needs, available logistics driven by budgeting and societal support of a broad-minded thinking environment, free of bias for everyone: from young adults questioning their gender identity, via women of reproductive age both struggling to conceive or keep working part time when healthy and line of work permits it during pregnancy, up to aging and the elderly. Using ?Investigate-Educate-Advocate-Legislate? as the four pillars of advancing cardiovascular care of women, we aimed to summarize standing of women?s health in Serbia, present ongoing projects and propose actionable solutions for the future.

1 July 2013 in Hormones
Verified
Journal Article
Closed access
PDF file
SPSnezana Polovina
Snezana Polovina
VPVera Popovic
Vera Popovic
LDLeonidas Duntas
Leonidas Duntas
NMNatasa Milic
Natasa Milic
DMDragan Micic
Dragan Micic

3 December 2020 in Medicina
Verified
Journal Article
Open access
PDF file
ONOlga Milos Nedeljkovic-Arsenovic
Olga Milos Nedeljkovic-Arsenovic
MBMarko Banovic
Marko Banovic
DRDejan Radenkovic
Dejan Radenkovic
Nemanja RancicNemanja Rancic
Nemanja Rancic
SPSnezana Polovina
Snezana Polovina
INIvana P Nedeljkovic
Ivana P Nedeljkovic
Background and objectives: Obesity presents as a multifactorial, pandemic disease that arises as a consequence of unequal energy intake and energy consumption. Obesity adversely affects the quality of life, leading not only to disability, but also to various other disorders. Bariatric surgery is the most effective method for achieving significant and sustained weight loss in individuals with extreme obesity. The aim of this study was to examine how well surgically induced weight loss is maintained after five years of follow-up and its effects on cardiovascular risk factors and outcome. Materials and Methods: This is a retrospective cross-sectional study of 66 patients with morbid obesity, with body mass index (BMI) ≥ 40 kg/m2 or BMI ≥ 35 kg/m2 and obesity-related health conditions, aged 20 to 61 years, mostly women (77.3%) who underwent laparoscopic Roux-en-Y gastric bypass surgery. Results: Average follow-up was 6.42 years (95% CI 6.30–6.54 years) after surgery, with survival rate of 97% in operated individuals. There was a statistically significant reduction of weight and body mass index 6 months and 5 years after surgery in comparison to the initial values (p < 0.001). Of 62 patients who presented weight loss at the end of the follow-up period, 38 were able to maintain the amount of weight loss that was attained 6 months after surgery, while 24 patients regained weight compared to their postoperative weight at 6 months. Two patients reported no weight loss after treatment. Significant weight reduction was associated with better control of diabetes and increased self-reported physical activity at 6 months and 5 years after surgery, as well as with a reduction of the use of anti-diabetic and anti-hypertensive medications. Conclusions: Our research demonstrates a positive long-term impact of bariatric surgery on patients’ health conditions, significant and sustained weight loss, and decrease in BMI, which were associated with a reduction of co-morbidities and risk factors for cardiovascular diseases.

14 September 2023 in Life
Verified
Journal Article
Open access
PDF file
NONina Ž Okuka
Nina Ž Okuka
VSVerena Schuh
Verena Schuh
UKUlrike Dagmar Barbara Krammer
Ulrike Dagmar Barbara Krammer
SPSnezana Polovina
Snezana Polovina
MŠMirjana Šumarac-Dumanović
Mirjana Šumarac-Dumanović
NINevena Ivanovic
Nevena Ivanovic
Several studies report the important role of an altered gut microbiota in the development of obesity, highlighting the potential use of probiotics in the treatment of obesity. The aim of this study is to investigate the effect of a novel probiotic approach on the expression of specific miRNAs and mRNAs associated with obesity in combination with the hypocholesterolemic octacosanol. Twenty overweight/obese women participated in a randomized, placebo-controlled, double-blind study and were randomly divided into two groups: the intervention group (daily one capsule containing Lactobacillus plantarum 299v (DSM9843), Saccharomyces cerevisiae var. boulardii, and 40 mg octacosanol; N = 12) and the placebo group (N = 8). Changes in lipid parameters and expression of miRNAs and mRNAs were assessed before (T0) and after the 12-week intervention (T1). After the intervention, the expression of miR-155-5p (9.38 ± 0.85 vs. 8.38 ± 1.06, p = 0.05) and miR-24-3p (3.42 ± 0.38 vs. 2.71 ± 0.97, p = 0.031) showed significant decreases in the intervention group when compared to the control group. At T1, the expression of miR-155-5p (8.69 ± 1.31 vs. 9.3 ± 0.85, p = 0.04), miR-125b-5p (5.41 ± 1.18 vs. 5.99 ± 1.36, p = 0.049), and TNF-α (10.24 ± 1.66 vs. 11.36 ± 1.12, p = 0.009) were significantly decreased in the intervention group. No changes in lipids and anthropometric parameters were observed. The novel probiotic approach had a positive effect on regulating the expression of certain miRNAs and mRNAs important for regulating inflammation and adipogenesis, which are essential for obesity onset and control.

1 January 2015 in Vojnosanitetski Pregled
Verified
Journal Article
Open access
PDF file
SPSnezana Polovina
Snezana Polovina
DMDragan Micić
Dragan Micić
DMDragana Miljić
Dragana Miljić
NMNataga Milić
Nataga Milić
DMDugan Micić
Dugan Micić
VPVera Popović
Vera Popović
Background/Aim. The Fracture Risk Assessment Tool (FRAX? score) is the 10-year estimated risk calculation tool for bone fracture that includes clinical data and hip bone mineral density measured by dual-energy x-ray absorptiometry (DXA). The aim of this cross-sectional study was to elucidate the ability of the FRAX? score in discriminating between bone fracture positive and negative pre- and post-menopausal women with subclinical hyperthyroidism. Methods. The bone mineral density (by DXA), thyroid stimulating hormone (TSH) level, free thyroxine (fT4) level, thyroid peroxidase antibodies (TPOAb) titre, osteocalcin and beta-cross-laps were measured in 27 pre- and post-menopausal women with newly discovered subclinical hyperthyroidism [age 58.85 ? 7.83 years, body mass index (BMI) 27.89 ? 3.46 kg/m2, menopause onset in 46.88 ? 10.21 years] and 51 matched euthyroid controls (age 59.69 ? 5.72 years, BMI 27.68 ? 4.66 kg/m2, menopause onset in 48.53 ? 4.58 years). The etiology of subclinical hyperthyroisims was autoimmune thyroid disease or toxic goiter. FRAX? score calculation was performed in both groups. Results. In the group with subclinical hyperthyroidism the main FRAX? score was significantly higher than in the controls (6.50 ? 1.58 vs 4.35 ? 1.56 respectively; p = 0.015). The FRAX? score for hip was also higher in the evaluated group than in the controls (1.33 ? 3.92 vs 0.50 ? 0.46 respectively; p = 0.022). There was no correlations between low TSH and fracture risk (p > 0.05). The ability of the FRAX? score in discriminating between bone fracture positive and negative pre- and postmenopausal female subjects (p < 0.001) is presented by the area under the curve (AUC) plotted via ROC analysis. The determined FRAX score cut-off value by this analysis was 6%, with estimated sensitivity and specificity of 95% and 75.9%, respectively. Conclusion. Pre- and postmenopausal women with subclinical hyperthyroidism have higher FRAX? scores and thus greater risk for low-trauma hip fracture than euthyroid premenopausal women. Our results point to the use of FRAX? calculator in monitoring pre- and postmenopausal women with subclinical hyperthyroidism to detect subjects with high fracture risk in order to prevent further fractures.