The metabolism of lithocholic acid-3alpha-sulfate by human intestinal microflora. 1978

M I Kelsey, and G M Muschik, and S A Sexton

Lithocholic acid-3alpha-sulfate is metabolized by human intestinal microflora to nonpolar metabolites which have been partially purified by Sephadex LH-20 chromatography. These metabolites were characterized by thin layer and gas liquid chromatography as well as combined gas liquid chromatography-mass spectrometry. The chromatographic properties of one of the metabolites are consistent with those described for a delta2- or delta3-cholenate. The formation of cholenates by the microflora may represent a retoxification of the sulfate ester of lithocholic acid.

UI MeSH Term Description Entries
D007413 Intestinal Mucosa Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI. Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D007422 Intestines The section of the alimentary canal from the STOMACH to the ANAL CANAL. It includes the LARGE INTESTINE and SMALL INTESTINE. Intestine
D008095 Lithocholic Acid A bile acid formed from chenodeoxycholate by bacterial action, usually conjugated with glycine or taurine. It acts as a detergent to solubilize fats for absorption and is itself absorbed. It is used as cholagogue and choleretic. Lithocholate,Isolithocholic Acid,Acid, Isolithocholic,Acid, Lithocholic
D002770 Cholenes Unsaturated derivatives of cholane with methyl groups at C-10 and C-13 and a branched five-carbon chain at C-17. They must have at least one double bond in the ring system.
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013463 Sulfuric Acid Esters Organic esters of sulfuric acid. Sulfates, Organic,Thiosulfuric Acid Esters,Organic Sulfates,Esters, Sulfuric Acid,Esters, Thiosulfuric Acid

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