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American Journal of Clinical Nutrition, Vol 40, 1235-1242, Copyright © 1984 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

The adaptation of the small intestine after resection in response to free fatty acids

VL Grey, C Garofalo, GR Greenberg and CL Morin

The effects of long-chain triglycerides and a mixture of free fatty acid on the adaptive response to small bowel resection were examined. Rats with a 50% small bowel resection were divided into four groups. Two received 10% of their calories intragastrically either as corn oil or as free fatty acid and the remaining calories intravenously while the two control groups were given all their calories either intravenously or orally. The results of DNA and protein determination show that free fatty acids were more effective than long-chain triglyceride in promoting adaptation (p less than 0.01) in both small intestine and in the colon. Furthermore the intragastric infusion of free fatty acids was as effective as the orally fed group. Of the plasma hormones measured (gastrin, gastric inhibitory polypeptide, enteroglucagon, and insulin) gastric inhibitory polypeptide was significantly higher (p less than 0.05) in the orally fed group and insulin levels in the free fatty acid group (p less than 0.05) than in other groups. There was no significant difference obtained in enteroglucagon and gastrin levels for the four groups. This study shows that a small amount of free fatty acids (10% of the total calories) given by continuous gastric infusion is effective in promoting intestinal adaptation after resection.


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