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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1988-9-12
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pubmed:abstractText |
The stability of tauro-23-[75Se]selena-25-homocholic acid (SeHCAT) towards deconjugation by the enzyme cholylglycine hydrolase was compared with that of taurocholate: whereas taurocholate underwent 58% deconjugation within 2 hr, SeHCAT suffered only 8% deconjugation plus 5% conversion to an unknown product within 24 hr. Incubation of SeHCAT under anaerobic conditions for 48 hr at 37 degrees C with human fecal organisms resulted in considerable deconjugation, 7 alpha-dehydroxylation, and dehydrogenation. Twenty-four hours after the simultaneous administration of SeHCAT and tauro-[24-14C]cholate to a rabbit the recovery of 75Se in bile was 90% of that of 14C. Forty-eight hours following administration of SeHCAT to a second rabbit residual bile radioactivity revealed 80% deconjugation and dehydroxylation and 60% reconjugation with glycine. Although SeHCAT is more resistant than taurocholate towards modification by fecal bacterial enzymes, within the rabbit it follows the principal metabolic pathways of the natural bile acids.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/23-seleno-25-homotaurocholic acid,
http://linkedlifedata.com/resource/pubmed/chemical/Amidohydrolases,
http://linkedlifedata.com/resource/pubmed/chemical/Carbon Radioisotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Selenium Radioisotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Taurocholic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/choloylglycine hydrolase
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0161-5505
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
29
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1411-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3404256-Amidohydrolases,
pubmed-meshheading:3404256-Animals,
pubmed-meshheading:3404256-Bacteria, Anaerobic,
pubmed-meshheading:3404256-Carbon Radioisotopes,
pubmed-meshheading:3404256-Drug Stability,
pubmed-meshheading:3404256-Feces,
pubmed-meshheading:3404256-Humans,
pubmed-meshheading:3404256-Hydrolysis,
pubmed-meshheading:3404256-Rabbits,
pubmed-meshheading:3404256-Selenium Radioisotopes,
pubmed-meshheading:3404256-Taurocholic Acid,
pubmed-meshheading:3404256-Time Factors
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pubmed:year |
1988
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pubmed:articleTitle |
Biologic stability of tauro-23-[75Se] selena-25-homocholic acid.
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pubmed:affiliation |
Amersham International plc, Bucks, United Kingdom.
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pubmed:publicationType |
Journal Article,
Comparative Study
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