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  • Title: Simultaneous microanalysis of biliary cholesterol, bile acids and fatty acids in lecithin using capillary column gas chromatography: an advantage to assess bile lithogenecity.
    Author: Tazuma S, Hatsushika S, Yamashita G, Aihara N, Sasaki M, Horikawa K, Yamashita Y, Teramen K, Ochi H, Hirano N.
    Journal: J Chromatogr B Biomed Appl; 1994 Feb 18; 653(1):1-7. PubMed ID: 8012551.
    Abstract:
    Simultaneous determination of biliary lipids was performed by alkaline hydrolysis, the formation of the methyl ester derivatives of fatty acids that are constituents of phospholipids and of the acetylated methyl ester derivatives of bile acids, and subsequent analysis by capillary column gas chromatography. Complete separation and satisfactory recovery of cholesterol, bile acids, and fatty acids were achieved. Also, the accuracy of the calculation of the bile cholesterol saturation index was enhanced by computation. Since the degree of acyl chain unsaturation affects the cholesterol-holding capacity in vesicles, this method provides a unique insight into bile metastability by the quantitative assessment of fatty acids in lecithin.
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