Secretion of cysteine and glutathione from mucosa to lumen in rat small intestine.

Abstract

Using a vascularly perfused rat intestinal preparation, we found that large quantities (i.e., 100-200 microM) of acid-soluble thiols accumulated in the jejunal lumen in 10-30 min and that the accumulation was largely unaffected by dietary food restriction for 24 or 48 h. Depending on the length of perfusion, cysteine comprised 20-40% of total luminal thiols… (More)

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