[Circadian variation of intestinal sucrose and water absorption in rats (author's transl)].
A rat jejunal segment of 15 cm length was perfused single pass with a 3 mmol/l sucrose solution 4 times daily at 8.00, 14.00, 20.00 and 2.00. One group of rats was fed ad libitum, a second group was "meal fed" between 14.00 and 18.00. Sucrose absorption reached its maximum at 8.00 in the rats fed ad libitum whereas it was spread over a period of six hours (20.00-2.00) in the meal fed rats. The activity of sucrase in mucosal scrapings reached its peak at feeding time.
D000818:Animals; D002940:Circadian Rhythm; D007408:Intestinal Absorption; D007583:Jejunum / Q000378:metabolism; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D013395:Sucrose / Q000378:metabolism*; D014867:Water / Q000378:metabolism*
D014867:Water; D013395:Sucrose
Tageszeitabhängige Schwankungen der Saccharose- und Wasserabsorption im Dünndarm der Ratte.