Obesity, along with metabolic disorders such as dyslipidemia and insulin resistance, increases the risk of cardiovascular disease, diabetes, various cancers, and other non-communicable diseases, thereby contributing to higher mortality rates. The intestinal microbiome plays a crucial role in maintaining homeostasis and influencing human metabolism. This study enrolled 82 young obese individuals, who were stratified into groups with or without metabolic disturbances. No significant differences in the alpha or beta diversity of the microbiota were observed among the groups. Insulin resistance was characterized by an increase in the number of Adlercreutzia and Dialister as well as a decrease in Collinsella, Coprococcus and Clostridiales. The dyslipidemia and dyslipidemia+insulin resistance groups had no significant differences in the gut microbiota. Dietary patterns also influenced microbial composition, with high protein intake increasing Leuconostoc and Akkermansia, and high fiber intake boosting Lactobacillus and Streptococcus. The genus Erwinia was associated with increases in visceral fat and serum glucose as well as a decrease in high-density lipoprotein cholesterol. Our findings highlight a significant association between gut microbiota composition and metabolic disturbances in young obese individuals, and they suggest that dietary modifications may promote a healthy microbiome and reduce the risk of developing metabolic disorders.

Компонентный состав тела и величина основного обмена у пациентов с избыточной массой тела и ожирением

Insufficient body weight is one of the manifestations of nutritional disorders. Diseases associated with malnutrition occur in 10-12% of the population. The aim of the work was to study indicators of nutritional status and actual nutrient intake in patients with insufficient body weight. Material and methods. The study included 48 women aged 31.4±11.8 years, with a body mass index below 18.5 kg/m2. The body composition was estimated by bioelectrical impedance analysis. Nutrient intake was assessed using food frequency questionnaire, physical activity was evaluated by the survey method, using the computer program "Evaluation of nutrition", also blood biochemical parameters were determined. Results. Body fat mass was below average values in 93.8% of patients, while only 50.0% of women had a skeletal muscle deficiency, and 10.4% surveyed had skeletal muscle mass above average values. The energy value of the daily diet was 1982± 282 kcal, and daily energy expenditure was 2158±255 kcal. In the structure of the diet, fats prevailed (42.0±10.5% of daily calorie intake) and there was a significant lack of total carbohydrates (39.9±10.4% of daily calorie intake) and dietary fiber. Fat intake was exceeded in 92.9% of patients. Insufficient carbohydrate intake was also observed in 92.9% of patients. In most patients, daily intake of potassium, calcium, magnesium, iron, B vitamins did not reach the recommended level, while sodium and phosphorus intake was excessive. The nutrient intake imbalance affected blood biochemical parameters in hypercholesterolemia (in 41.7% of patients) and hypertriglyceridemia (31.3%), and decreased calcium (30.0%), iron (12.8%) and vitamin D (52.2%) levels. Conclusion. Thus, for underweight patients, correction of the diet and dispensary observation is required to determine body composition and biochemical parameters, in particular, the fat and muscle components of the body weight, lipid metabolism indicators, the supply with macro- and micronutrients in order to develop treatment and prevention tactics of diet-related diseases, combined with reduced body weight.

The number of new cases of diabetes mellitus (DM) and its complications is rapidly increasing and a great amount of cases remains undiagnosed. It demonstrates that improvement of existing methods of treatment can be extremely helpful in present situation. It is known, that one of components of pathogenesis of DM is gut microbiota (GM) and its metabolism. Metabolites of GM include short-chain fatty acids (SCFA), some gases, energy and some low molecular metabolites. From the point of influence on stage of diabetes mellitus SCFA are the most interest. They are not only the main source of energy for colonocytes with antiischemic and protective properties, concerning the gut wall, but they also increase satiety, reduce insulin resistance, improve β-cell function and lead to decrease in body mass. Functions of SCFA are so versatile that they can be mentioned in DM with relative and absolute insulin deficiency as well. Due to its plasticity, GM can change its structure and functions in response to some changes in organism. However, in people with DM these changes are severe and continuous, which makes total amount of microorganisms and their proportion change irreversibly, leading to associated changes in amount of SCFA. Considering the positive effects of SCFA on carbohydrate metabolism, modulation of GM metabolism may occur an efficient addition to antidiabetic therapy. One of the powerful factors, influencing GM, is dietary fiber (DF). They are an energetic substrate for GM, they also maintain pH necessary for GM and regulate food passage in gastrointestinal system. Studying the influence of SCFA on DM and correction of metabolic dysregulation with DF need special attention, as DF and SCFA may become a powerful addition to antidiabetic therapy.

It has now been established that the intestinal microbiota (CM) is one of the 11 links in the pathogenesis of type 2 diabetes mellitus (DM2). Th e fact is that when the composition of BM is disrupted and the concentration of its active metabolites changes, the processes of synthesis and secretion of incretin hormones are disrupted, the homeostasis of carbohydrates and fats in the body is disrupted, the processes of central regulation of appetite change, chronic infl ammation and insulin resistance of peripheral tissues develop. Th is review discusses possible ways of impairing the synthesis of incretin hormones and the incretin eff ect in patients with T2DM through the prism of BM and its active metabolites, and discusses possible ways of correcting the altered composition of BM with incretin drugs.A systematic literature search was carried out using the Scopus, PubMed, Web of Science databases.

Introduction. Myocardial fibrosis is often found in atrial fibrillation (AF), but there are no data on its relationship with structural and functional heart damage in various forms of the latter.Aim. To determine the possible relationship between echocardiographic parameters and blood levels of cardiac fibrosis markers (C-terminal propeptide of procollagen type 1, PICP; N-terminal propeptide of procollagen type 1, P3NP; galectin 3; transforming growth factor beta 1, TGF-β1) in patients with different forms of AF.Materials and methods. The study included 50 patients with paroxysmal AF (median age 73 [65.8;76] years, 34 (68%) women) and 34 patients with persistent/permanent forms of AF (median age 77.5 [67.5;81.3] years, 21 (62%) women). Transthoracic echocardiography was performed in all patients using the speckle tracking technique and serum levels of PICP, P3NP, galectin 3 and TGF-β1 were determined.Results. Serum P3NP correlate with E/e’ media (p=0.048, R² = 0.117) in patients with persistent/permanent forms of AF. PICP level correlated with the average strain of the left atrium (LA) in patients with persistent/permanent forms of AF (p = 0.01, R² = 0.189). The blood level of galectin 3 correlated with E/e’ media in the general cohort of patients with AF and in the group of patients with persistent/permanent forms of AF (p = 0.005, R² = 0.095 and p = 0.027, R² = 0.144, respectively), and with global longitudinal strain of the left ventricle (LV) – in the group of patients with paroxysmal AF (p = 0.044, R² = 0.084). The serum TGF-β1 correlated with E/e’ media (p = 0.013, R² = 0.074) in the general cohort of patients with AF and with values of the global longitudinal LV strain (p = 0.027, R² = 0.099) in the group of patients with paroxysmal AF.Conclusions. Serum levels of PICP, P3NP, galectin-3 and TGF-β1 correlate with the values of E/e’ media, global longitudinal LV strain and average LA strain. An integrated approach, including standard echocardiography, Speckle Tracking echocardiography, and determination of the level of fibrosis biomarkers in the blood can help to more accurately assess the degree of cardiac fibrosis in a noninvasive way in patients with various forms of AF.