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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1976-7-6
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pubmed:abstractText |
The kinetics of biotransformation of methoxyflurane by rat hepatic microsomes in vitro was studied. The rate of biotransformation as measured by analysis of metabolites continued to increase even at near-saturation concentrations of the anesthetic. Methoxyflurane biotransformation followed either an unbounded curve with empirical formula y = a ln(bx + 1) or an asymptotic curve with formula (see article) No substrate inhibition was observed. Total fluoride Vmax of 135.1 mmumol F-/mg protein/30' was increased to 931.9 by phenobarbital induction; free fluoride Vmax from 39.2 to 403.2. Thus, enzyme induction shifted biotransformation to the production of greater amounts of inorganic free fluoride metabolites than organic fluoride-containing metabolites. Phenobarbital induction caused qualitative as well as quantitative alteration in the biotransformation of methoxyflurane.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0003-3022
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
44
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
380-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1267202-Anesthesia, Inhalation,
pubmed-meshheading:1267202-Animals,
pubmed-meshheading:1267202-Biotransformation,
pubmed-meshheading:1267202-Cytochrome P-450 Enzyme System,
pubmed-meshheading:1267202-Enzyme Induction,
pubmed-meshheading:1267202-Fluorides,
pubmed-meshheading:1267202-Kinetics,
pubmed-meshheading:1267202-Male,
pubmed-meshheading:1267202-Methoxyflurane,
pubmed-meshheading:1267202-Microsomes, Liver,
pubmed-meshheading:1267202-Phenobarbital,
pubmed-meshheading:1267202-Rats,
pubmed-meshheading:1267202-Rats, Inbred F344
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pubmed:year |
1976
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pubmed:articleTitle |
Kinetics of methoxyflurane biotransformation with reference to substrate inhibition.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.
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