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  • Title: Occurrence of cholesterol monohydrate crystals in gallbladder and hepatic bile in man: influence of bile acid treatment.
    Author: Sahlin S, Ahlberg J, Angelin B, Ewerth S, Nilsell K, Reihnér E, Einarsson K.
    Journal: Eur J Clin Invest; 1988 Aug; 18(4):386-90. PubMed ID: 3139424.
    Abstract:
    The occurrence of cholesterol monohydrate crystals was examined and related to the degree of cholesterol saturation in gallbladder bile and hepatic bile of gallstone (GS) patients (n = 34), gallstone-free (GSF) subjects (n = 33) and GS patients treated with chenodeoxycholic acid (CDCA (n = 7) or ursodeoxycholic acid (UDCA) (n = 11) for 3 weeks prior to cholecystectomy. Twenty-five untreated GS patients (74%) and four UDCA-treated patients (40%) displayed cholesterol crystals in the gallbladder bile. Only two GSF subjects (6%) and none of the CDCA-treated patients had crystals. Half of the patients with crystals in the gallbladder bile had crystals also in the hepatic bile. Cholesterol saturation of the gallbladder bile was higher in GS (142 +/- 15%, mean +/- SEM) than in GSF patients (74 +/- 5%). Saturation was also higher in GS patients with crystals (157 +/- 20%) than in those without crystals (99 +/- 12%). Gallbladder bile was unsaturated in all CDCA- and UDCA-treated patients. The results underline the importance of the degree of cholesterol saturation for the formation of cholesterol crystals. The data also give further support to the concept that the mechanism for inducing gallstone dissolution is different for CDCA and UDCA.
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