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Related Experiment Videos

Gallstone dissolution therapy with ursodiol. Efficacy and safety.

G Salen1

  • 1Division of Gastroenterology, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark 07103.

Digestive Diseases and Sciences
|December 1, 1989
PubMed
Summary

Ursodiol effectively dissolves cholesterol gallstones by balancing liver cholesterol and bile acid synthesis. This safe treatment improves biliary distress symptoms and reduces lithocholic acid formation.

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Area of Science:

  • Hepatology
  • Gastroenterology
  • Pharmacology

Background:

  • Gallstone formation is linked to an imbalance in hepatic cholesterol and bile acid synthesis.
  • Cholesterol gallstone patients exhibit increased hepatic cholesterol synthesis and decreased bile acid synthesis.
  • Enzyme activity measurements reveal these metabolic imbalances.

Purpose of the Study:

  • To evaluate the efficacy and safety of ursodiol in treating cholesterol gallstones.
  • To assess ursodiol's impact on hepatic cholesterol and bile acid synthesis pathways.
  • To compare ursodiol with chenodeoxycholic acid regarding liver function and lithocholic acid formation.

Main Methods:

  • Treatment of gallstone patients with ursodiol for approximately one year.
  • Measurement of hydroxymethylglutaryl coenzyme A reductase activity.

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  • Analysis of bile acid composition and lithocholic acid levels.

    • Main Results:

    • Ursodiol reduced hydroxymethylglutaryl coenzyme A reductase activity in gallstone patients.
    • Endogenous bile acid synthesis was not inhibited by ursodiol.
    • Ursodiol use resulted in lower lithocholic acid formation compared to chenodeoxycholic acid.
    • Symptoms of biliary distress improved within 3-6 weeks of ursodiol treatment.
    • Gallstone recurrence was observed in approximately 50% of patients post-treatment.

    Conclusions:

    • Ursodiol is a safe and effective litholytic agent for cholesterol gallstones.
    • Ursodiol normalizes cholesterol metabolism and reduces lithocholic acid, a potential chole toxic metabolite.
    • While effective for dissolution, long-term management after gallstone dissolution requires further consensus.