[Effects of hypoxic and cold stimuli on heat production and catecholamine content in mice].
Hypoxic and low-temperature effects on the thermal regulation and the content of catecholamines (epinephrine--E and norepinephrine--NE) in mice have been compared. Continuous and repeated hypoxia brought about a significant drop of the rodent body temperature and heat content. Found was a significant elevation of catecholamines in the pituitary and adrenal tissues, and blood plasma with E prevalence after the continuous exposure. Repeated stimulus resulted in a more pronounced effect. Exception was the adrenal tissue where enhanced E and NE secretion into blood was noted. The uninterrupted and repeated cold conditions were also responsible for heat release. Continuous exposure to low temperature increased NE and decreased insignificantly E in blood and adrenal. Multiple stimulation increased sharply catecholamines concentration in blood plasma with the dominance of epinephrine in the pituitary gland, and norepinephrine in the adrenal.
Ibraimova
G I
GI
D000311:Adrenal Glands / Q000378:metabolism; D000818:Animals; D001833:Body Temperature Regulation; D002395:Catecholamines / Q000097:blood / Q000378:metabolism*; D003080:Cold Temperature / Q000009:adverse effects; D004837:Epinephrine / Q000097:blood / Q000378:metabolism; D000860:Hypoxia / Q000503:physiopathology*; D051379:Mice; D009638:Norepinephrine / Q000097:blood / Q000378:metabolism; D010812:Physical Stimulation; D010902:Pituitary Gland / Q000378:metabolism
D002395:Catecholamines; D009638:Norepinephrine; D004837:Epinephrine
Vliianie gipoksicheskogo i kholodovogo stimulov na teplovydelenie i soderzhanie katekholaminov u mysheĭ.