Absorption of l-methionine from the human small intestine
AUTOR(ES)
Schedl, Harold P.
RESUMO
Absorption of L-methionine was measured in all parts of the human small intestine using transintestinal intubation and perfusion. In four normal subjects, adsorption was higher in the proximal than in the distal intestine. In two patients with nontropical sprue in relapse, there was a proximal zone of low absorption with higher absorption distally. In all parts of the small intestine, absorption showed rate-limiting kinetics as methionine concentration was increased. In normal subjects, the proximal Km (Michaelis constant) was more than 3 times higher than the distal, which suggests a difference in transport mechanisms between the two segments.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=297184Documentos Relacionados
- Formation of Methyl Mercaptan from l-Methionine by Porphyromonas gingivalis
- Transport Systems for l-Methionine in Escherichia coli
- Diversity of l-Methionine Catabolism Pathways in Cheese-Ripening Bacteria
- Purification and Characterization of l-Methionine γ-Lyase from Brevibacterium linens BL2†
- Na+-Stimulated Transport of l-Methionine in Brevibacterium linens CNRZ 918