Circulatory adaptive reactions under hypergravity in normal and cold environments.
Rats subjected to various levels of +Gz acceleration exhibited an increased blood concentration of noradrenalin and adrenalin, indicative of a sympatho-adrenergic reaction. Under the same conditions, from plasma determinations, and by histochemical examination of the supra-optic nucleus, an increased antidiuretic response was noted. This response was reduced in cold environment.
Groza
P
P
Institute of Physiology, Bucharest, Rumania.
Daneliuc
E
E
Nicolescu
E
E
Bordeianu
A
A
Carmaciu
R
R
Cananau
S
S
D000818:Animals; D001919:Bradycardia / Q000209:etiology / Q000503:physiopathology; D002498:Centrifugation; D003080:Cold Temperature; D004837:Epinephrine / Q000378:metabolism*; D006339:Heart Rate / Q000502:physiology*; D018471:Hypergravity / Q000009:adverse effects*; D008297:Male; D009622:Noise / Q000009:adverse effects; D009638:Norepinephrine / Q000378:metabolism*; D051381:Rats; D017208:Rats, Wistar; D013495:Supraoptic Nucleus / Q000378:metabolism; D013610:Tachycardia / Q000209:etiology / Q000503:physiopathology; D014667:Vasopressins / Q000378:metabolism*
D014667:Vasopressins; D009638:Norepinephrine; D004837:Epinephrine