[Human amino acid metabolism during combined short-term exposure to head-down tilt hypokinesia and ultraviolet irradiation].
Changes in the amino acid pool in the plasma of test subjects exposed to short-term head-down tilt combined with ultraviolet irradiation were investigated. Exposure to head-down tilt alone (Group 1 of 3 test subjects) and combined with ultraviolet irradiation (10 sessions) (Groups 2 and 3 of 3 test subjects each) acted as a stress-agent that diminished the amino acid pool. Exposure to 2-hour head-down tilt in combination with 20 UV-irradiations (Groups 2 and 3) increased the amino acid pool as a result of inhibition of anabolic and stimulation of catabolic processes. The amino acid pool did not return to normal within the recovery period allowed.
D000596:Amino Acids / Q000097:blood* / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D006801:Humans; D007103:Immobilization; D011187:Posture; D013997:Time Factors; D014466:Ultraviolet Rays
D000596:Amino Acids
Issledovanie nekotorykh storon aminokislotnogo metabolizma u cheloveka v usloviiakh kratkovremennogo sochetannogo vozdeĭstviia antiortostaticheskoĭ gipokinezii i ul'trafioletovogo oblucheniia.