Reversal of net secretion to net absorption of potassium in rat large intestine by dietary potassium depletion.
Feeding rats a diet low in potassium and high in sodium for 2 weeks led to a reversal of net potassium secretion to net potassium absorption in ligated segments of distal large intestine (colon descendens and rectum) under in-vivo conditions. This change in the direction of net potassium transport is probably important for the maintenance of potassium homeostasis.
D000818:Animals; D002712:Chlorides / Q000378:metabolism; D007408:Intestinal Absorption; D007420:Intestine, Large / Q000378:metabolism*; D008297:Male; D011188:Potassium / Q000378:metabolism*; D011191:Potassium Deficiency; D051381:Rats; D011919:Rats, Inbred Strains; D012964:Sodium / Q000378:metabolism
D002712:Chlorides; D012964:Sodium; D011188:Potassium