[Water-salt homeostasis in rats during space flight].
The paper generalized the results of s series of experiments aimed at studying liquid and electrolytes contents in various organs and tissues of rats following 3-week space flights (SF). The results ascertain high reliability of the water-salt homeostasis maintaining system which ensures stable water and electrolytes amounts in the majority of animal tissues in SF. The following alterations appear to be of greatest significance: deduced potassium levels in the heart ventricle tissues in male rats after short-duration (7-9 d) exposure in SF, zero-g-induced degradation of the body ability to bind potassium at injection of isotonic solution KCl into the stomach; redistribution of potassium ions between mother and developing fetuses in space experiments with pregnant animals. Simulated experiments showed that similar shifting of potassium ions in the mother-fetus system may be due not to weightlessness exclusively but other impacts, i.e. they are not specific.
Natochin
Iu V
IuV
Serova
L V
LV
D000818:Animals; D005260:Female; D006352:Heart Ventricles / Q000378:metabolism; D006706:Homeostasis; D007267:Injections; D007552:Isotonic Solutions; D008297:Male; D008431:Maternal-Fetal Exchange; D011188:Potassium / Q000378:metabolism; D011189:Potassium Chloride / Q000008:administration & dosage; D011247:Pregnancy; D051381:Rats; D017208:Rats, Wistar; D012737:Sex Factors; D013026:Space Flight; D013997:Time Factors; D014882:Water-Electrolyte Balance; D014893:Weightlessness
D007552:Isotonic Solutions; D011189:Potassium Chloride; D011188:Potassium
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