Abstract
Bile acids were analyzed in the bile, small and large intestines, and feces of germ-free rats after a single inoculation with one of six intestinal bacteria that had been originally isolated from human feces.Bacteroides vulgatus andBifidobacterium longum preferentially deconjugated tauro-β-muricholic acid and taurocholic acid, respectively.Clostridium ramosum, Peptostreptococcus productus andLactobacillus gasseri deconjugated both bile acids, butEscherichia coli did not deconjugate either one. Rats inoculated with bacteria that deconjugated tauro-β-muricholic acid produced Δ22-β-Muricholic acid in the feces. In contrast, Δ22-cholic acid could not be detected in rats inoculated with bacteria that deconjugated taurocholic acid.
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Abbreviations
- FT:
-
Fourier transform
- GC/MS:
-
gas chromatography/mass spectrometry
- HPLC:
-
high-performance liquid chromatography
- INADEQUATE:
-
incredible natural abundance double-quantum transfer experiment
- NMR:
-
nuclear magnetic resonance
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Kayahara, T., Tamura, T., Amuro, Y. et al. Δ22-β-Muricholic acid in monoassociated rats and conventional ratsacid in monoassociated rats and conventional rats. Lipids 29, 289–296 (1994). https://doi.org/10.1007/BF02536334
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DOI: https://doi.org/10.1007/BF02536334