[Effect of calcium ion level in blood on physiological functions in rat subjected to immersion hypothermia].
I.v. administration of disodium salt of the ethylenediamine tetra-acetic acid to continuously immersed white rats intensified the rats' amplitude and rate of the respiration movement. I.v. administration of calcium chloride to the cooled rats diminished by 11.3% the respiration movement amplitude and by 20.7%--the muscles electrical activity. The findings confirm important role of the calcium ions in infringement of physiological functions under conditions of hypothermia.
Slepchuk
N A
NA
I. P. Pavlov Institute of Physiology, Russian Acad. Sci., 199034, St. Petersburg, Nab. Makarova, 6, Russia.
Mel'nikova
N N
NN
D000818:Animals; D002118:Calcium / Q000097:blood*; D002122:Calcium Chloride / Q000494:pharmacology; D002614:Chelating Agents / Q000494:pharmacology; D004492:Edetic Acid / Q000494:pharmacology; D006339:Heart Rate; D007035:Hypothermia / Q000097:blood / Q000503:physiopathology*; D007036:Hypothermia, Induced; D007101:Immersion; D018482:Muscle, Skeletal; D051381:Rats; D017208:Rats, Wistar; D012119:Respiration; D017694:Rewarming
D002614:Chelating Agents; D004492:Edetic Acid; D002122:Calcium Chloride; D002118:Calcium