Linked Life Data

12015202

Source:http://linkedlifedata.com/resource/pubmed/id/12015202

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2002-5-16
pubmed:abstractText
The effects of microinjection of phencyclidine (PCP) and dizocilpine, non-competitive NMDA receptor antagonists, and dopamine into the nucleus accumbens were examined in rats trained to discriminate PCP (1.5 mg/kg i.p.) from saline under a two-lever fixed ratio 20 schedule of food reinforcement. Microinjection of PCP (2-40 microg) and dizocilpine (2-12 microg) into the bilateral nucleus accumbens produced a dose-dependent increase in PCP-appropriate responding and fully substituted for systemically administered PCP, whereas microinjection of dopamine (1-4 microg) did not produce PCP-like discriminative stimulus effects. The performance of PCP discrimination was assessed after bilateral destruction of the dopaminergic nerve neurons in the nucleus accumbens with dopaminergic neurotoxin, 6-hydroxydopamine (6-OHDA, 4 microg/1 microl/side). The destruction of dopaminergic nerve neurons in the nucleus accumbens failed to prevent the performance of PCP discrimination. There was no difference in the average percentages of PCP-appropriate responding between vehicle and 6-OHDA-treated rats in the dose-response tests. These results suggest that the dopaminergic system in the nucleus accumbens does not play a critical role in the discriminative stimulus effects of PCP.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0028-3908
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
764-71
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Involvement of dopaminergic system in the nucleus accumbens in the discriminative stimulus effects of phencyclidine.
pubmed:affiliation
Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't