Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-1-30
pubmed:abstractText
Single unit activity was recorded in the locus coeruleus (LC) of anesthetized, morphine-dependent rats during naltrexone-precipitated withdrawal. As has been reported previously, LC neurons displayed a strong withdrawal-induced activation of firing rate. Radio-frequency lesions of the nucleus paragigantocellularis (PGi), a major LC afferent, greatly attenuated withdrawal-induced activation of neurons in the LC ipsilateral but not contralateral to the PGi lesion. Lesions of the prepositus hypoglossi, another major LC afferent, did not prevent the withdrawal-induced activation of LC neurons. Kynurenic acid, a non-selective excitatory amino acid antagonist known to block PGi-induced excitations of LC neurons, also blocked the withdrawal-induced activation of LC neurons. These studies indicate that withdrawal-induced activation of the LC in opiate-dependent rats is mediated at least in part by afferents from the PGi which utilize an excitatory amino acid transmitter.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
505
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
346-50
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Withdrawal-induced activation of locus coeruleus neurons in opiate-dependent rats: attenuation by lesions of the nucleus paragigantocellularis.
pubmed:affiliation
Department of Psychiatry, Yale University School of Medicine, New Haven, CT.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't