title: Portacaval shunt and measurement of canine bile acid enterohepatic circulation: effects of cholecystectomy.
abstract: Studies were made of the usefulness of serial serum bile acid determinations in dogs with end-to-side portacaval shunt for determining relative rates of bile acid enterohepatic circulation (EHC). Studies in intact and cholecystectomized dogs with shunt showed that bile acid EHC in fasting cholecystectomized animals was about three times faster than in intacts. As expected, feeding greatly increased EHC in intacts, but caused smaller but definite increases in cholecystectomized animals. Cholecystokinin (Kinevac) administration caused transient increases in intact dog bile acid EHC, but had no effect in cholecystectomized animals. These results confirm most previous studies and demonstrate that the method is sensitive and useful for comparing rates of bile acid enterohepatic circulation under different circumstances.
mesh_terms: D000818:Animals; D001647:Bile Acids and Salts / Q000097:blood / Q000502:physiology*; D002763:Cholecystectomy; D002766:Cholecystokinin / Q000494:pharmacology; D004285:Dogs; D004764:Enterohepatic Circulation; D005215:Fasting; D011167:Portacaval Shunt, Surgical; D013997:Time Factors
chemical_list: D001647:Bile Acids and Salts; D002766:Cholecystokinin