Abstract
The balance between the synthesis of cholesterol and bile acids in the liver is a key factor in the formation of gallstones. Patients with cholesterol gallstones have been shown to have higher rates of hepatic cholesterol synthesis and lower rates of bile acid synthesis than control subjects, as measured by the activity of the respective rate-controlling enzymes. Treatment with ursodiol reduced the high levels of hydroxymethylglutaryl coenzyme A reductase in gallstone patients treated for approximately one year. Such treatment did not appear to inhibit endogenous synthesis of bile acids. Ursodiol is distinct from chenodeoxycholic acid in that no significant abnormalities of liver function have been reported during its use. Bacterial 7-dehydroxylation is more active for chenodeoxycholic acid than ursodiol; thus less lithocholic acid is formed with ursodiol. Patients receiving the highest dose of ursodiol often have been shown to have the lowest percentage of lithocholic acid in the bile. During treatment with ursodiol for dissolution of gallstones, symptoms of biliary distress began to improve after three to six weeks. Gallstones will recur in about 50% of patients, but no consensus exists on management of patients after dissolution of their stones. Overall, ursodiol is a safe and effective litholytic agent.
Similar content being viewed by others
References
Salen G, Nicolau G, Shefer S, Mosbach EH: Hepatic cholesterol metabolism in patients with gallstones. Gastroenterology 69:676–684, 1975
Northfield TC, et al: Presented at the June 1988 Falk Meeting, Freiburg, West Germany.
Salen G, Colalillo A, Verga D, Bagen E, Tint GS, Shefer S: The effect of high and low doses of ursodeoxycholic acid in gallstone dissolution in humans. Gastroenterology 78:1412–1418, 1980
Tint GS, Salen G, Colalillo A, et al: Ursodeoxycholic acid: A safe and effective agent for dissolving cholesterol gallstones. Ann Intern Med 97:351–356, 1982
Salvioli G, Igimi H, Carey MC: Cholesterol gallstone dissolution in bile. Dissolution kinetics of crystalline cholesterol monohydrate by conjugated chenodeoxycholate-lecithin and conjugated ursodeoxycholate-lecithin mixtures: Dissimilar phase equilibrium and dissolution mechanisms. J Lipid Res 24:701–720, 1983
Fedorowski T, Salen G, Tint GS, Mosbach EH: Transformation of chenodeoxycholic acid and ursodeoxycholic acid by human intestinal bacteria. Gastroenterology 77:1068–1073, 1979
Ruppin DC, Dowling RH: Is recurrence inevitable after dissolution by bile-acid treatment. Lancet 1:181–185, 1982
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Salen, G. Gallstone dissolution therapy with ursodiol. Digest Dis Sci 34 (Suppl 12), S39–S43 (1989). https://doi.org/10.1007/BF01536661
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01536661