[Nuclease activity of microorganisms and control of auto-microflora state of operators in hermetically sealed environment].

A study was performed to investigate biological properties of pathogenic microorganisms (Shigella, Salmonella, Staphylococcus aureus) and potentially pathogenic microorganisms which were isolated from different people, i.e. clinically healthy people with normal microflora, somatically healthy patients with intestinal dysbacteriosis, and patients with acute intestinal diseases.

[Dynamics of hormones, sugar and electrolytes during hypodynamia according to blood biochemical indices].

Time-course variations in hormones, carbohydrates and electrolytes (specifically, cortisol, aldosterone, testosterone, T3, T4, sugar, potassium, sodium and chlorides) in blood of essentially healthy men, aged 19-59 years, kept for 30 days in a closed life-support system were measured. The hormones, sugar and electrolytes varied in a different manner. The subjects, aged 48-59 years, who performed regular exercises showed a higher stability of potassium, sodium and chlorides and a normalization of hormones by test day 30 in contrast to other groups of subjects.

[Functional evaluation of the musculoskeletal system under an autonomous life support regimen based on data on blood biochemical indices].

The functional state of the musculo-skeletal system of healthy male volunteers of three age groups (Group 1--19-21 years, n = 16; Group 2--25-43 years, n = 26; Group 3--48-59 years, n = 30) was evaluated. The subjects were kept in an enclosure for 30 days. Creatine phosphokinase (CPK), lactate dehydrogenase (LDH), alkaline phosphatase, aspartate aminotransferase (AAT), calcium, P1 were measured in blood.