Intestinal absorption of biotin and biocytin in the rat
- 1 August 1987
- journal article
- research article
- Published by Portland Press Ltd. in Bioscience Reports
- Vol. 7 (8) , 667-673
- https://doi.org/10.1007/bf01127680
Abstract
The uptake of biotin and biocytin was investigated in rat intestine using the everted sac technique. It has been shown that at biotin and biocytin concentrations !ess than 40 and 50 nM respectively, absorption proceeds by a saturable process, whereas at higher concentrations uptake by passive diffusion predominates. Fractionation of solublized brush border preparations indicates that biotinidase is the only protein which binds biotin in this preparation.This publication has 27 references indexed in Scilit:
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