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  • Title: Inhibition of rat basal pancreatic secretion by intraduodenal bile.
    Author: Staub JL, Sarles H.
    Journal: Dig Dis Sci; 1979 Aug; 24(8):602-8. PubMed ID: 467211.
    Abstract:
    The effect on basal exocrine pancreatic secretion of diversion from and reintroduction into the duodenum of bile has been studied on conscious rats provided with pancreatic, biliary and duodenal fistulae. Diversion of bile from the intestine augmented protein output by 30%. After an eight-hour diversion recirculation of bile into the duodenum reduced pancreatic protein output by 30%; volume being not significantly modified. When either bile was diverted or the main bile duct was ligated, a similar inhibition of protein secretion was observed after intraduodenal injections of 20 mM solutions of taurocholate, taurochenodeoxycholate, chenodeoxycholate, and cholate, and of synthetic mixed micelles (bile salts, lecithin). Inhibitory action of bile salts on pancreatic secretion was seen equally whether or not the bile salts were in free or conjugated form or pancreatic juice returned to the intestine. We conclude that unlike man and the dog, bile as well as pancreatic juice inhibits the basal pancreatic exocrine secretion of the rat.
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