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Updated: Jul 29, 2026
Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
Published on: November 27, 2016
Effect of bile acid analogs on 7 alpha-dehydroxylase activity in Eubacterium sp. V.P.I. 12708
Abstract:
7 beta-Methyl-chenodeoxycholic acid (7-MeCDC, 3 alpha, 7 alpha-dihydroxy-7 beta-methyl-5 beta-cholan-24-oic acid), 7 alpha-methyl-ursodeoxycholic acid (7-MeUDC, 3 alpha, 7 beta-dihydroxy-7 alpha-methyl-5 beta-cholan-24-oic acid), 7 xi-methyl-lithocholic acid (7-MeLC, 3 alpha-hydroxy-7 xi-methyl-5 beta-cholan-24-oic acid) and ursodeoxycholylsarcosine (UDCS) were tested as inhibitors of bacterial bile acid 7 alpha-dehydroxylase activity. At a concentration of 50 microM, 7-MeCDC and 7-MeUDC inhibited enzyme activity by 66% and 12%, respectively. 7 alpha-Dehydroxylase activity was not inhibited in the presence of 7-MeLC and UDCS. None of the four bile acid analogs tested inhibited the growth of Eubacterium sp. V.P.I. 12708 at concentrations up to 100 microM.
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