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Biochemical assessment of cholelithiasis
K Ramachandran1, M Pushpalatha, V Leelamma
1Kasturba Medical College, Mangalore.
The Journal of the Association of Physicians of India
|September 1, 1992
Summary
Gallstones (cholelithiasis) are linked to altered lipid metabolism, specifically decreased bile phospholipids and depressed lecithin-cholesterol acyltransferase (LCAT) activity in both serum and bile.
Area of Science:
- Biochemistry
- Gastroenterology
- Lipid Metabolism
Background:
- Cholelithiasis, or gallstone disease, affects a significant portion of the population.
- Understanding the biochemical changes associated with gallstones is crucial for diagnosis and treatment.
- Lipid composition of bile and serum plays a key role in gallstone formation.
Purpose of the Study:
- To investigate alterations in lipid profiles and enzyme activities in patients with cholelithiasis.
- To compare serum and bile parameters between gallstone patients and healthy controls.
- To assess the role of lecithin-cholesterol acyltransferase (LCAT) in the pathogenesis of cholelithiasis.
Main Methods:
- Analysis of serum and bile samples from 45 cholelithiasis patients and 25 controls.
- Quantification of cholesterol, phospholipids, and bilirubin.
- Measurement of alkaline phosphatase and LCAT activity in both serum and bile.
Main Results:
- Elevated serum phospholipids in 60% of cholelithiasis cases.
- Decreased bile phospholipid levels observed in patients.
- Significantly depressed serum and bile LCAT activity in the gallstone group.
- Normal serum alkaline phosphatase and alanine aminotransferase levels.
Conclusions:
- Cholelithiasis is associated with significant disruptions in lipid metabolism.
- Reduced bile phospholipids and impaired LCAT activity are key biochemical markers in gallstone disease.
- These findings suggest a potential role for LCAT deficiency in cholesterol gallstone formation.