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  • Title: [Effect of ursodeoxycholic acid on bile secretion and bile components. Comparison with chenodeoxycholic acid and dehydrocholic acid].
    Author: Yanaura S, Ishikawa S.
    Journal: Nihon Yakurigaku Zasshi; 1976 Sep; 72(6):689-700. PubMed ID: 1034593.
    Abstract:
    Effects of some bile acids on the biliary flow, BSP output and composition (phospholipid, cholesterol, bilirubin and bile acids) were studied in dogs. Ursodeoxycholic acid (UD), chenodeoxycholic acid (CD) and dehydrocholic acid (DC) caused a dramatic increase in biliary flow and BSP output. Relative potencies of these effects were DC greater than CD greater than or equal to UD. UD increased the phospholipid, bile acids and cholesterol concentration but had little effect on bilirubin concentration. Furthermore, UD greatly increased the output of four bile components. CD slightly decreased the phospholipid, cholesterol and bilirubin concentration without the bile acids, while CD increased the output of bile components. After UD or CD administration, the bile acid of each appeared markedly in the bile, dose dependently. On the other hand, DC caused a dramatic decrease of phospholipid, cholesterol and bilirubin concentration but had little effect on bile acids concentration. Output of bile components was increased by DC the first 1 hr but decreased at 2 hr. After DC administration, 3alpha, 7alpha-dihydroxy-12keto-5beta-cholanic acid appeared in the bile while DC did not. Therefore, it is concluded that UD and CD are cholanereticas and DC is a hydrocholeretica.
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