Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-12-23
pubmed:abstractText
Acetaminophen hepatotoxicity is characterized by glutathione depletion and the formation of the reactive electrophilic metabolite N-acetyl-p-benzoquinone imine. The induction of oxidative stress, expressed as lipid peroxidation, is controversial in acute acetaminophen intoxication. Isolated rat hepatocytes develop spontaneously or when incubated with buthionine sulfoximide, a progressive lipid peroxidation which may be inhibited by the antioxidant flavonoid silybin. When cells are incubated with acetaminophen, lipid peroxidation is not observed, this antilipoperoxidative effect being potentiated by silybin. It is proposed that when hepatocytes are incubated with a high concentration of acetaminophen, the drug may accumulate in the cells due to saturation and/or inhibition of detoxification pathways (as in the case of silybin). Under these conditions the development of hepatocyte oxidative stress may be inhibited due to the antioxidant behaviour of acetaminophen.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0901-9928
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9-12
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Acetaminophen does not induce oxidative stress in isolated rat hepatocytes: its probable antioxidant effect is potentiated by the flavonoid silybin.
pubmed:affiliation
Unit of Biochemical Pharmacology, INTA, University of Chile, Santiago.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't