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Gallbladder bile composition in patients with Crohn 's disease
Annika Lapidus1, Jan-Erik Akerlund, Curt Einarsson
1Centre of Gastrointestinal Disease, Ersta Hospital, Stockholm, Sweden.
World Journal of Gastroenterology
|January 28, 2006
Summary
Crohn's disease patients have an increased risk of developing both cholesterol and pigment gallstones due to several contributing factors found in their bile. This study analyzed bile composition to understand these gallstone formation mechanisms.
Area of Science:
- Gastroenterology
- Hepatology
- Biliary Pathophysiology
Background:
- Crohn's disease is associated with a higher incidence of gallstone formation.
- The specific mechanisms underlying this increased risk are not fully understood.
Purpose of the Study:
- To investigate the pathogenesis and mechanisms of gallstone formation in Crohn's disease patients.
- To analyze gallbladder bile composition in Crohn's disease patients with varying disease locations.
Main Methods:
- Gallbladder bile was collected from Crohn's disease patients undergoing surgery and from gallstone patients as controls.
- Bile analysis included lipids, bile acids, bilirubin, crystal presence, and crystal detection time (CDT).
- Cholesterol saturation index was calculated, and duodenal bile was studied in healthy subjects before and after ursodeoxycholic acid treatment.
Main Results:
- Patients with Crohn's disease showed higher bilirubin concentrations in bile compared to cholesterol gallstone patients.
- A significant proportion of Crohn's disease patients had cholesterol-supersaturated bile, cholesterol crystals, and a short crystal detection time (CDT).
- Increased bilirubin in bile was observed in Crohn's colitis patients, independent of bile acid malabsorption.
Conclusions:
- Multiple factors contribute to the elevated risk of both cholesterol and pigment gallstones in Crohn's disease.
- Bile composition alterations in Crohn's disease play a crucial role in gallstone pathogenesis.
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