Absence of transformation of beta-muricholic acid by human microflora implanted in the digestive tracts of germfree male rats

Appl Environ Microbiol. 1984 May;47(5):1167-8. doi: 10.1128/aem.47.5.1167-1168.1984.

Abstract

Germfree rats biosynthetize cholic and beta-muricholic acids. The latter does not exist in humans. Germfree rats were given human fecal suspensions. These rats degraded cholic acid into deoxycholic acid but failed to metabolize beta-muricholic acid.

MeSH terms

  • Animals
  • Bacteria / metabolism*
  • Biotransformation
  • Cholic Acid
  • Cholic Acids / metabolism*
  • Chromatography, Gas
  • Deoxycholic Acid / biosynthesis
  • Digestive System / metabolism
  • Digestive System / microbiology*
  • Feces / microbiology*
  • Female
  • Germ-Free Life
  • Humans
  • Male
  • Rats

Substances

  • Cholic Acids
  • Deoxycholic Acid
  • muricholic acid
  • hyodeoxycholic acid
  • Cholic Acid