Gallstone formation in guinea pigs under different dietary conditions. Effect of vitamin C on bile acid pattern. 1981

F Bergman, and T Curstedt, and H Eriksson, and W van der Linden, and J Sjövall

Guinea pigs formed gallstones when fed chow supplemented with cholesterol and cholic acid. Although the stones contained little or no cholesterol the changes in biliary bile acid and lipid composition were similar to those observed in other rodents under conditions of cholesterol gallstone formation. Addition of cholestyramine to chow had a midly lithogenic effect. Hypovitaminosis C in animals given cholesterol and cholic acid resulted in an increase of the cholesterol content of the gallstones. The composition of biliary bile acids was markedly changed. Reductive formation of deoxycholic acid decreased and oxidative formation of ketonic bile acid increased. The results show that vitamin C may influence the redox state of the intestinal microorganisms microorganisms responsible for these conversions.

UI MeSH Term Description Entries
D008297 Male Males
D002769 Cholelithiasis Presence or formation of GALLSTONES in the BILIARY TRACT, usually in the gallbladder (CHOLECYSTOLITHIASIS) or the common bile duct (CHOLEDOCHOLITHIASIS). Gallstone Disease,Cholelithiases,Gallstone Diseases
D002784 Cholesterol The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils. Epicholesterol
D002791 Cholesterol, Dietary Cholesterol present in food, especially in animal products. Dietary Cholesterol
D002792 Cholestyramine Resin A strongly basic anion exchange resin whose main constituent is polystyrene trimethylbenzylammonium Cl(-) anion. Cholestyramine,Colestyramine,Colestyramin,Cuemid,MK-135,Quantalan,Questran,Cholestyramine Resins,Cholestyramines,Colestyramines,Colestyramins,Cuemids,MK 135,MK135,Quantalans,Questrans,Resin, Cholestyramine,Resins, Cholestyramine
D002793 Cholic Acids The 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholanic acid family of bile acids in man, usually conjugated with glycine or taurine. They act as detergents to solubilize fats for intestinal absorption, are reabsorbed by the small intestine, and are used as cholagogues and choleretics. Cholalic Acids,Acids, Cholalic,Acids, Cholic
D004036 Diet, Atherogenic A diet that contributes to the development and acceleration of ATHEROGENESIS. Atherogenic Diet,Atherogenic Diets,Diets, Atherogenic
D005260 Female Females
D006168 Guinea Pigs A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research. Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D006358 Hot Temperature Presence of warmth or heat or a temperature notably higher than an accustomed norm. Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot

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