Linked Life Data

1387032

Source:http://linkedlifedata.com/resource/pubmed/id/1387032

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-9-24
pubmed:abstractText
The antipsychotic effects of neuroleptic drugs are believed to be achieved by chronic blockade of dopaminergic transmission in the limbic system. Nevertheless, the effects of chronic (3-12 months) haloperidol administration on the dopaminergic transmission in the nucleus accumbens of rodents remains poorly understood. Studies of spontaneous locomotor activity (SLA), a behavioral measure related to limbic dopamine transmission, and of dopamine D2 receptor density in the nucleus accumbens after chronic oral haloperidol treatment have yielded conflicting results. We evaluated these indices after 8 months of parenteral administration of haloperidol decanoate. We report here that, after 8 months of parenteral treatment, SLA stays significantly decreased and D2 receptors in the nucleus accumbens exhibit the same up-regulation as in the striatum (about 50%). These results fail to support the notion of a different pattern of D2 receptor adaptation to neuroleptic treatment between the nucleus accumbens and the striatum. In contrast, dopamine D1 receptors were found to be unaffected in the nucleus accumbens but decreased in the striatum by 22% after 8 months of treatment. This observation could be relevant to the pathogenesis of tardive dyskinesia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
575
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
47-56
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
D1 and D2 receptor modulation in rat striatum and nucleus accumbens after subchronic and chronic haloperidol treatment.
pubmed:affiliation
Clinical Brain Disorders Branch, NIMH Neuroscience center, Saint Elizabeths, Washington, DC 20032.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.