Linked Life Data

1311603

Source:http://linkedlifedata.com/resource/pubmed/id/1311603

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-4-8
pubmed:abstractText
The effect of inducing the rat liver nuclear mixed-function oxidase system by phenobarbital or 3-methylcholanthrene on NADPH- and NADH-dependent production of reactive oxygen intermediates was evaluated. The inducing agents produced a 2-fold increase in cytochrome P-450, a 50 to 70% increase in NADPH-cytochrome c reductase activity, and a 20 to 30% increase in NADH-cytochrome c reductase activity. Associated with these increases was a corresponding increase in NADPH- and NADH-dependent production of hydroxyl radical (.OH)-like species and of H2O2. Rates of .OH production were inhibited by catalase and partially sensitive to superoxide dismutase. The increase in nuclear production of .OH-like species after drug treatment appears to be due a corresponding increase in H2O2 generation. In contrast to H2O2 and .OH generation, production of thiobarbituric acid-reactive material by nuclei was not increased by the phenobarbital or 3-methylcholanthrene treatment. Redox cycling agents such as menadione and paraquat increased oxygen radical generation to similar extents in the control and the induced nuclei. These results indicate that induction of the nuclear mixed-function oxidase system by phenobarbital or 3-methylcholanthrene can result in a subsequent increase in production of reactive oxygen intermediates in the presence of either NADPH or NADH.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
1116
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
17-23
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Effect of phenobarbital and 3-methylcholanthrene treatment on NADPH- and NADH-dependent production of reactive oxygen intermediates by rat liver nuclei.
pubmed:affiliation
Department of Biochemistry, Mount Sinai School of Medicine, New York, NY 10029.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't