Tissue electrolytes in the rabbit following chronic dietary potassium depletion.
Tissue electrolytes were estimated in rabbits following chronic dietary K+ depletion, and after a week of subsequent K+ repletion. The heart, liver and brain all exhibited protection against K+ loss following K+ depletion, whereas skeletal muscle did not. Both Na+ and total magnesium were elevated in quadriceps, but not in other tissues. After 1 week of K+ repletion the heart and liver both showed a significant overshoot in tissue K+, but no change in total magnesium. It is suggested that the liver may have a similar adaptation to depletion as that reported for the heart (Ward & Cameron, 1984).
Ward
J P
JP
Department of Physiology, St George's Hospital Medical School, Tooting, London.
D000818:Animals; D001921:Brain / Q000378:metabolism; D002118:Calcium / Q000378:metabolism; D004032:Diet; D004573:Electrolytes / Q000378:metabolism*; D008099:Liver / Q000378:metabolism; D008274:Magnesium / Q000378:metabolism; D008297:Male; D009132:Muscles / Q000378:metabolism; D009206:Myocardium / Q000378:metabolism; D011188:Potassium / Q000008:administration & dosage* / Q000378:metabolism; D011817:Rabbits; D012964:Sodium / Q000378:metabolism
D004573:Electrolytes; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium