[Conjugated variability of spontaneous activity and behavioral response to olfactory stimuli in the taiga tick (Ixodes persulcatus)].

According to -the automatic tracing of the movement of ticks in a Petri dish, motivational variability of the spontaneous activity and behavioral response of the taiga tick to olfactory stimuli was analyzed. In the studied sample, two groups of ticks that differ in the movement trajectory in the absence of stimulus were isolated, including ticks that mainly moved on the edge of the dish at maximum accessible height (group 1) and ticks that mainly moved at the bottom and wall of the dish (group 2). It was registered that ticks of group 1 (as opposed to ticks of group 2) demonstrated a pronounced behavioral response to olfactory stimuli (human synthetic pheromones and ammonia) and negative geotaxis. It was established that belonging to these groups depended On the time of day when the testing was performed and did not depend on the physiological age and infectious status.

[Concentration of light hydrocarbons in exhaled air depending on the risk factors of metabolic disorder].

In this study we investigated the effect of risk factors of metabolic syndrome on the content of light hydrocarbons (C2-C3) in exhaled air. We used a gas chromatograph with a short multi-channel column. As a result, sex differences in concentrations of light hydrocarbons presented in exhaled air were found. In addition, such factors as smoking and diabetes mellitus type 2 in relatives reflect on the exhaled C2-C3 compounds only in women. But the overweight correlates with the exhaled acetone (C3) only in men. Thus, the fact that the metabolic changes caused by the presence of risk factors of metabolic syndrome lead to changes in gas composition of exhaled air and can be registered and used for early diagnosis has been ascertained.