Linked Life Data

8581502

Source:http://linkedlifedata.com/resource/pubmed/id/8581502

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1996-3-20
pubmed:abstractText
The effect of social stress on the vulnerability to commence cocaine self-administration was examined in Sprague-Dawley rats repeatedly exposed to aggressive attack by a same-sex opponent. Both sexes were studied, since the factors influencing the acquisition of drug self-administration in females have not been defined. Male and female rats encountered an aggressive male or lactating female opponent on four separate occasions over the course of one week. Control male and female rats were not exposed to attack. All animals were implanted with jugular catheters, and six days later placed into the self-administration box, where a nose-poke in the designated 'active hole' resulted in a 20 microliters injection of cocaine (0.32 mg/kg). Nose-pokes in an 'inactive' hole had no effect. Male and female rats that had experienced social stress self-administered more cocaine than non-defeated controls. The difference between the stressed and non-stressed animals in the number of cocaine injections was not present during the first few days of exposure to cocaine, but became more pronounced over time. Social stress increased the number of responses for cocaine, but did not alter the number of non-specific responses. Sex differences in self-administration were not significant. Therefore, social status appears to be a potent influence in the onset of drug taking behavior in both male and female rats.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
6
pubmed:volume
698
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
46-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Social stress increases the acquisition of cocaine self-administration in male and female rats.
pubmed:affiliation
Laboratoire de Psychobiologie des Comportements Adaptatifs, INSERM U. 259, Université de Bordeaux II, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't