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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1990-1-30
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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.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
29
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pubmed:volume |
505
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
346-50
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2598056-Action Potentials,
pubmed-meshheading:2598056-Animals,
pubmed-meshheading:2598056-Kynurenic Acid,
pubmed-meshheading:2598056-Locus Coeruleus,
pubmed-meshheading:2598056-Male,
pubmed-meshheading:2598056-Medulla Oblongata,
pubmed-meshheading:2598056-Morphine,
pubmed-meshheading:2598056-Naltrexone,
pubmed-meshheading:2598056-Rats,
pubmed-meshheading:2598056-Rats, Inbred Strains,
pubmed-meshheading:2598056-Substance Withdrawal Syndrome
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pubmed:year |
1989
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pubmed:articleTitle |
Withdrawal-induced activation of locus coeruleus neurons in opiate-dependent rats: attenuation by lesions of the nucleus paragigantocellularis.
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pubmed:affiliation |
Department of Psychiatry, Yale University School of Medicine, New Haven, CT.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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