Effect of dl-ethionine on the intestinal absorption and transport of palmitic acid-1-14C and tripalmitin-14C. Role of intramucosal factors in the uptake of luminal lipids

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RESUMO

The effect of DL-ethionine on the uptake and transport of lipid by the rat small intestine was investigated. A cottonseed oil emulsion containing 14C-labeled tripalmitin or palmitic acid was administered intragastrically to rats pretreated with DL-ethionine, DL-ethionine plus methionine, or saline, and the rats were sacrificed 2, 4, and 6 hr later. Lipids from the plasma, the stomach, the colon, the luminal contents of the small intestine, and the wall of the small intestine were extracted, fractionated, and their radioactivity assayed.

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