Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1987-4-29
pubmed:abstractText
The organophosphorous pesticide malathion is metabolized by three hepatic enzyme systems: the microsomal cytochrome P-450-dependent monooxygenase system, the microsomal carboxylesterases, and the cytosolic glutathione S-transferases. We produced differential induction of these three enzyme systems in mice with phenobarbital and 2(3)-tert-butyl-4-hydroxyanisole (BHA) and examined the effects of the induction on the inhibition of acetylcholinesterases by malathion. Phenobarbital not only significantly induced hepatic microsomal cytochrome P-450 (p less than 0.05) but also increased microsomal carboxylesterase activity (p less than 0.05). BHA not only increased the activity of microsomal carboxylesterases (p less than 0.05) but also substantially increased cytosolic glutathione S-transferase activity (p less than 0.05). Despite the differential effects of phenobarbital and BHA on the three enzyme systems, neither agent protected the mice against malathion toxicity.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0041-008X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
389-92
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
The effects of differential induction of cytochrome P-450, carboxylesterase and glutathione S-transferase activities on malathion toxicity in mice.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.