Linked Life Data

3587525

Source:http://linkedlifedata.com/resource/pubmed/id/3587525

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1987-6-29
pubmed:abstractText
The stimulatory effect of morphine on locomotor activity has been shown to be largely modified in rats that have been formerly dependent on this drug. In the present study, the relationship between the chronic dose of morphine and the degree of sensitization to the excitatory effect of opiates was investigated. To this end, four groups of rats were treated daily for 30 days with 1.25, 5, 20 and 80 mg/kg of morphine (i.p.) and challenged with morphine (1.25 and 2.5 mg/kg) or fentanyl (40 and 80 micrograms/kg) 1-4 months after ceasing the treatment. Drug-induced hypermotility in post-dependent rats appeared to be linearly related to the dose of the preceding chronic treatment after test doses of both morphine and fentanyl. The results are discussed in terms of a persistent dose-related modification of the neuronal mechanism subserving the excitatory component of the action of opiates; such a modification might offer a neurobiological basis for the fact that "relapse tendencies" for opiates persist for a long time after withdrawal.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0028-3908
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
115-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Previous treatment with morphine and sensitization to the excitatory actions of opiates: dose-effect relationship.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't