Abstract
Psychological stress may alter gastrointestinal function by central nervous system controlled alteration of local intestinal mediators. Prostaglandins have been shown to prevent epithelial damage to various noxious stimuli. The purpose of this study was to determine (a) if wrap restraint stress altered in vivo intestinal fluid absorption in rats, and (b) if the prostaglandin E 1 analogue, misoprostol, could correct observed fluid malabsorption. In vivo loop studies demonstrated net fluid secretion in the ileum and colon of cold wrap restraint stressed rats. In cold wrap restraint stressed rats, misoprostol reversed net secretion to absorption, but it had no effect on fluid absorption in controls. Mild wrap restraint stress did not alter in vivo fluid absorption. We conclude that cold wrap restraint stress is accompanied by net intestinal fluid secretion that can be effectively reversed with misoprostol.
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