Linked Life Data

8733757

Source:http://linkedlifedata.com/resource/pubmed/id/8733757

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1996-11-5
pubmed:abstractText
The N-methyl-D-aspartate (NMDA) and cholecystokinin (CCK)-B receptors may have a role in the development and reversal of tolerance to morphine. In morphine-tolerant rats, addition of the CCK-B receptors antagonist CI 988 or the NMDA receptor blocker dextromethorphan enhanced the antinociceptive effect of morphine on the hot plate test. However, combined administration of CI 988 and dextromethorphan did not further potentiate the antinociceptive effect of morphine in tolerant rats. Dextromethorphan by itself had no effect in tolerant rats. In drug-naive rats, dextromethorphan by itself had no antinociceptive effect, but when combined with morphine or morphine and CI 988, it significantly potentiated the magnitude and duration of the effect of morphine. Thus, unlike the reversal of tolerance with CI 988 at doses that did not potentiate the effect of morphine, the antinociception observed with the NMDA antagonist in the presence of morphine in tolerant rats may not represent the reversal of tolerance, but may instead reflect the potentiation of morphine's analgesic effect by dextromethorphan.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
838-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Dextromethorphan potentiates morphine antinociception, but does not reverse tolerance in rats.
pubmed:affiliation
Karolinska Institute, Department of Medical Laboratory Sciences and Technology, Huddinge University Hospital, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't