Linked Life Data

3675701

Source:http://linkedlifedata.com/resource/pubmed/id/3675701

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1987-12-16
pubmed:abstractText
The in vitro transformation, under anaerobic conditions, of 3- and 7-monosulfated and unsulfated bile acids, was studied in incubates of fecal flora from three healthy subjects. Chenodeoxycholic acid 7 alpha-sulfate and ursodeoxycholic acid 7 beta-sulfate were recovered unchanged, in all cultures, at the end of the incubation time. 3-Sulfated bile acids were metabolized in a different way by the three stool specimens. During the transformation of chenodeoxycholic acid 3-sulfate, desulfation, 7-dehydroxylation and 3-epimerization were observed. In contrast, 3-epimerization was not noticed when ursodeoxycholic acid 3-sulfate and lithocholic acid 3-sulfate were metabolized, the latter being principally transformed into delta 3-cholenic acid, probably by a bacterially mediated trans-elimination of sulfate group. The results obtained seem to prove that the presence of a SO3H group in 7-position usually hinders microbial transformations, which are not affected by a sulfate group in 3-position. Moreover, the 3-sulfated bile acids proved to be less sensitive to the microbial action than the corresponding unsulfated acids, with exception of lithocholic 3-sulfate.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0004-4172
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
983-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Transformation of sulfated bile acids by human intestinal microflora.
pubmed:affiliation
Department of Food Science and Microbiology, University of Milan, Italy.
pubmed:publicationType
Journal Article