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Purpose of the study: The aim of study was to analyze the characteristics of hormonal-metabolic parameters in men with a metabolically unhealthy obesity phenotype; identify the value of special indicators for diagnosis of insulin resistance.Materials and methods: The examination included 108 patients with body mass index ≥25 kg/m2, which were hospitalized. According to the current national guidelines for the diagnosis and treatment of obesity, all examined patients were divided into 2 groups: 1 — with metabolically healthy obesity phenotype, 2 — with metabolically unhealthy obesity phenotype. The study presents the results of comparative simultaneous nonrandomized study of two groups with using of different methods of examination (anthropometric indicators, laboratory tests for inspection of the hormonal profile, biochemistry parameters, and calculation of TyG index for diagnosis of insulin resistance).Results and discussion: The study found that patients of working age with metabolically unhealthy obesity phenotype are characterized by unfavorable anthropometric and hormonal-metabolic parameters and more severe polymorbid pathology (first of all cardiovascular diseases). The results of study revealed the value of special indicators for the diagnosis of insulin resistance (visceral obesity index >1,85; TyG >3,98; fat mass >30,1).Conclusion: timely detection of insulin resistance indicators has great importance and practical application due to simplicity and accessibility.

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In the modern world the problem of obesity in combination with new coronavirus infection has acquired a special danger. On the one hand, the prevalence of obesity among the population is steadily increasing, on the other-it has been proven that obese people are among the most vulnerable in terms of increased risk of infection and a serious prognosis. This is due to the presence and peculiarities of the development of various pathological mechanisms in this category of patients. These include: high expression of angiotensin-converting enzyme 2, a high probability of a «cytokine storm» developing, maintenance of a chronic inflammatory process in adipose tissue, changes in the activity of Dipeptidyl peptidase-4 enzyme. All these processes lead to an aggravation of metabolic disorders in adipose tissue and violation of immune protection. The world medical practice in the fight against the COVID-19 pandemic shows that patients with coronavirus infection against the background of obesity more often need hospitalization in intensive care units and connection to artificial ventilation equipment. Currently, many features of the course of coronavirus infection against the background of obesity have been identified and continue to be studied. These include: the presence of severe respiratory failure, a high risk of developing respiratory distress syndrome, thrombosis and thromboembolic complications, as well as worsening of the course of chronic cardiovascular diseases. All this eventually leads to the development of severe multiple organ failure, which is often the cause of death in this category of patients.