Nutrient tasting and signaling mechanisms in the gut. I. Sensing of lipid by the intestinal mucosa.

It is well recognized that lipid in the intestine is a potent inhibitor of gastric secretomotor function. Progress has been made in the identification of the "sensor" for lipid in the intestinal wall. Long-chain free fatty acids are the stimulus both for release of CCK and for the production of functional effects. Long-chain triglyceride requires chylomicron formation for absorption, and there is strong evidence that the postabsorptive products of long-chain triglyceride absorption, including chylomicrons and apolipoproteins, are involved in sensory transduction in the intestinal wall.