[The electrophysiological parameters of heart functioning and the Ca-pump activity of the sarcoplasmic reticulum membranes of the suslik and rat myocardia during prolonged hypothermia].
At the rat body temperature below 19 degrees C, their heart modifies its action and preserves physiological properties. The heart resistance against cooling during prolonged sleep seems to be due to a high stability of Ca-pump SR membranes.
Zhegunov
G F
GF
Wong
L
L
Jordan
M
M
Belke
D
D
D000818:Animals; D001831:Body Temperature / Q000502:physiology; D002118:Calcium / Q000378:metabolism; D000252:Calcium-Transporting ATPases / Q000378:metabolism / Q000502:physiology*; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006605:Hibernation / Q000502:physiology; D007036:Hypothermia, Induced / Q000295:instrumentation / Q000379:methods; D009206:Myocardium / Q000378:metabolism*; D051381:Rats; D012519:Sarcoplasmic Reticulum / Q000502:physiology*; D012589:Sciuridae / Q000502:physiology*; D013997:Time Factors
D000252:Calcium-Transporting ATPases; D002118:Calcium