Linked Life Data

3072212

Source:http://linkedlifedata.com/resource/pubmed/id/3072212

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1989-6-6
pubmed:abstractText
Addition of 1 microM-1 mM methadone to the bathing medium produced a concentration-dependent reduction in the neurotoxicity of exogenously applied N-methyl-D-aspartate (NMDA) in murine cortical cell culture (EC50 about 100 microM); the reduction persisted at intense NMDA exposure, consistent with non-competitive inhibition. Methadone also protected against exposure to quinolinate but not quisqualate or kainate. Concentrations (100 microM-3 mM) of several other opioids - morphine, fentanyl, codeine, meperidine, dextropropoxyphene, and naltrexone - were additionally found to produce concentration-dependent reductions in NMDA neurotoxicity. This novel neuron-protective effect of opioids was not mediated by conventional opioid receptors: the non-opioid enantiomer of methadone and morphine exhibited a potency equal to or greater than that of the opioid enantiomer, and 1 mM naloxone did not act as an antagonist. The possibility that opioids, or especially non-opioid enantiomers of opioids, might provide a useful therapeutic approach in diseases states involving NMDA receptor-mediated neurotoxicity, warrants further study.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
11
pubmed:volume
155
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
27-35
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Opioids and non-opioid enantiomers selectively attenuate N-methyl-D-aspartate neurotoxicity on cortical neurons.
pubmed:affiliation
Department of Neurology, Stanford University Medical Center, CA 94305.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't