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  • Title: [CHANGES IN LIFESTYLE FACTORS AFFECT THE LEVELS OF NEUROPEPTIDES, INVOLVED IN THE CONTROL OF EATING BEHAVIOR, INSULIN RESISTANCE AND LEVEL OF CHRONIC SYSTEMIC INFLAMMATION IN YOUNG OVERWEIGHT PERSONS].
    Author: Shevchenko Y, Mamontova T, Baranova A, Vesnina L, Kaidashev I.
    Journal: Georgian Med News; 2015 Nov; (248):50-7. PubMed ID: 26656551.
    Abstract:
    The continuous rise of overweight and obesity is a major concern for present and future healthcare management. The aim of our study was to evaluate the influence of lifestyle changes on central regulatory mechanisms of maintaining energy homeostasis, insulin resistance and chronic systemic inflammation in 18-25 year old overweight patients. The anthropometric measurements were done for each patient, including body weight, height, waist circumference (WC), hip circumference (HC), waist to hip ratio, and body mass index (BMI). Patients were divided into two groups according to their BMI. 20 males and 21 females with BMI > 25 kg/m2 were included in the first, study, group. The second, control, group consisted of 16 males and 11 females with BMI - 18.5 - 24.9 kg/m 2. Lipid profile, fasting glucose and insulin levels, HOMA-IR, TNF-α, ceruloplasmin, neuropeptides Agouti-related protein - AgRP and kokain- and amphetamine-mediated transcript - CART were examined at the beginning of the study (Day 1) and after 10 week treatment period (Day 70). During the 10 week treatment period, people in the study group underwent physical exercise programs of 40-60 minute duration three times per week, and brisk walking during the remaining days. The mean calorie expenditure during the exercise was 500 kcal/day. Each patient in the study group was given balanced, healthy diet with 20% calorie restriction from baseline diet. Our study reveled that negative energy balance caused a statistically significant decrease in AgRP, reduction of visceral fat stores, increase of HDL, reduction of TNF-α and dissolution of insulin resistance signs. Significant but not statistically significant reduction of CART level was observed after increased physical activity program and calorie restriction diet, which might play an important role in the mechanism of decreasing weight. However, further investigations are required in order to determine its place in body weight regulation.
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