, Volume 9, Issue 6, pp 407–414 | Cite as

Bile acid metabolism in mammals: VI. Effect of ethionine upon bile acids of rat bile

  • I. M. Yousef
  • G. Kakis
  • M. M. Fisher


Sex differences in the effect of ethionine upon rat liver metabolism prompted our investigation into possible sex differences in the effect of ethionine upon bile acid metabolism. The bile ducts of 24 rats, 12 male and 12 female, were cannulated. After 1 hr of bile collection, 6 rats of each sex were given ethionine, 1 mg/g body wt, by feeding tube. The bile acid composition of the bile collected during the subsequent 4 hr was analyzed by combined thin layer and gas chromatography. Ethionine induced a reduction in bile flow (3rd and 4th hr) and in bile acid concentration (4th hr) in female rats. The amino acid had no effect upon bile flow but did increase biliary secretion of bile acids (1st and 2nd hr) in male rats. Cholic acid accounted for the bulk of the reduction in total bile acid secretion in the female studies. The increase in total bile acid secretion in the male studies involved all bile acids. The effects of ethionine upon bile acid secretion were delayed in the female studies, immediate in the male. The changes in bile acid secretion involved only the taurine conjugates in the female studies, both taurine and glycine conjugates in the male. There are substantial sex differences in the effect of ethionine upon bile acid metabolism in the rat.


Bile Acid Taurine Cholic Acid Versus Versus Versus Versus Ethionine 
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Copyright information

© American Oil Chemists’ Society 1974

Authors and Affiliations

  • I. M. Yousef
    • 1
  • G. Kakis
    • 1
  • M. M. Fisher
    • 1
  1. 1.Departments of Medicine and PathologyUniversity of TorontoTorontoCanada

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