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[Calcium palmitate and cholesterol gallstones]
Zeitschrift Fur Gastroenterologie
|May 1, 1977
Summary
Calcium palmitate (Ca-palmitate) is a common component in cholesterol gallstones, particularly in multiple stones. It forms within fissures of altered gallstones after bile impregnation, not during initial stone formation.
Area of Science:
- Biochemistry
- Gastroenterology
- Pathology
Context:
- Cholesterol gallstones are prevalent, with complex compositions influencing their formation and characteristics.
- Calcium palmitate is frequently identified as a secondary constituent in various gallstone morphologies.
- Understanding the role of secondary components like calcium palmitate is crucial for gallstone research.
Purpose:
- To investigate the prevalence and formation mechanism of calcium palmitate in cholesterol gallstones.
- To determine the association between calcium palmitate and specific gallstone types.
- To elucidate the factors contributing to calcium palmitate occurrence in bile and gallstones.
Summary:
- Calcium palmitate (Ca-palmitate) is found in 60% of analyzed gallstones, predominantly in multiple-faceted and barrel-shaped stones.
- Quantitative analysis reveals Ca-palmitate constitutes approximately 1.75% of dry gallstone weight.
- Ca-palmitate crystallizes within gallstone fissures due to bile impregnation and concentration, rather than initiating stone nucleation.
- Factors favoring Ca-palmitate in bile include reduced palmitinic acid micellar solubilization and increased calcium concentration, potentially linked to inflammation.
Impact:
- Provides insights into the secondary crystallization processes within cholesterol gallstones.
- Highlights the role of altered gallstone structure and bile impregnation in Ca-palmitate deposition.
- Suggests potential etiological factors for Ca-palmitate accumulation in bile, relevant to gallstone disease pathogenesis.