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An experimental model of the obesity and type II diabetes mellitus formation in C57BL/6 mice using a high fat diet was developed and tested. In the study, it was shown that mice feeding high-fat diet had a significant body weight gain during the 3rd week. By the end of the experiment, body weight has more than doubled. In mice that feed chow diet, body weight increased by 50%, by the end of the experiment It was shown that high fat diet also induced glucose tolerance, and the insulin concentration tripled. The data obtained confirm the adequacy of the experimental model of diabetes mellitus type II in mice.

The purpose of the study is to evaluate the effect of dynamic and static exercises on eNOS concentrations in the blood plasma of athletes who do cyclic and strength kind of sports, as well as in men, who are not involved in any sports.Materials and methods. Determination of plasma concentrations of eNOS was performed by using enzyme immunoassay. Blood samples were collected from weightlifters and track and field athletes before and after static and dynamic exercises.Results. It has been shown that regular exercises contribute to a significant increase in the background level of endothelial nitric oxide synthase (eNOS) in the plasma of athletes. It is necessary to note that eNOS is almost twice higher in the weightlifters than in the track and field athletes. eNOS concentrations significantly decrease in athletes after static exercises , but on the contrary, increase after dynamic exercises. eNOS level rise in untrained individuals occurs after all kinds of exercises, although the influence of dynamic exercises is much more pronounced. Plasma concentrations of eNOS in all groups returned to baseline during the recovery period.These results suggest that the underlying mechanism that regulates the amount of eNOS in the plasma during exercises is associated with vascular factors, first and foremost, with the intensity of regional blood flow and its impact on the endothelium surface. Therefore, this protein cannot be positioned as a representative of a myokine group.

Mechanographical method helped to investigate retractive reactions of unstriped muscle оf auriferous ways at bronchial asthma in the experiment that guinea-pigs had. Sensitization of guinea-pigs by ovalbumin leads to the development of hypersensibility to inhalation of this protein with external characteristics of abnormality of bronchial patency. This process is followed by decomposition of epithelium of bronchi, development of immune inflammation in bronchial wall and hypertrophy of muscle layer. In sensibilized beings there was observed the development of hype reactivity of unstriped muscles of auriferous ways on histamine. It appears in histamine of liminal concentration and increasing of maximal amplitude of contraction. Reactions on choline ergine and β2-adrenergine effect didn't change.

The effect of treadmill training loads on the content of cytokines in mice skeletal muscles with metabolic disorders induced by a 16 week high fat diet (HFD) was studied. The study included accounting the age and biorhythmological aspects. In the experiment, mice were used at the age of 4 and 32 weeks, by the end of the experiment—respectively 20 and 48 weeks. HFD feeding lasted 16 weeks. Treadmill training were carried out for last 4 weeks six times a week, the duration 60 min and the speed from 15 to 18 m/min. Three modes of loading were applied. The first subgroup was subjected to stress in the morning hours (light phase); the second subgroup was subjected to stress in the evening hours (dark phase); the third subgroup was subjected to loads in the shift mode (the first- and third-weeks treadmill training was used in the morning hours, the second and fourth treadmill training was used in the evening hours). In 20-week-old animals, the exercise effect does not depend on the training regime, however, in 48-week-old animals, the decrease in body weight in mice with the shift training regime was more profound. HFD affected muscle myokine levels. The content of all myokines, except for LIF, decreased, while the concentration of CLCX1 decreased only in young animals in response to HFD. The treadmill training caused multidirectional changes in the concentration of myokines in muscle tissue. The IL-6 content changed most profoundly. These changes were observed in all groups of animals. The changes depended to the greatest extent on the training time scheme. The effect of physical activity on the content of IL-15 in the skeletal muscle tissue was observed mostly in 48-week-old mice. In 20-week-old animals, physical activity led to an increase in the concentration of LIF in muscle tissue when applied under the training during the dark phase or shift training scheme. In the HFD group, this effect was significantly more pronounced. The content of CXCL1 did not change with the use of treadmill training in almost all groups of animals. Physical activity, introduced considering circadian rhythms, is a promising way of influencing metabolic processes both at the cellular and systemic levels, which is important for the search for new ways of correcting metabolic disorders.