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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1992-8-28
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pubmed:abstractText |
Using quantitative autoradiography and selective opioid ligands, we have measured the effects of morphine-induced tolerance on [3H]DAMGO and [3H]DTLET binding sites in the superficial spinal dorsal horn (laminae I-II) of intact and deafferented rats (unilateral C4-T2 dorsal rhizotomy). In intact rats, the treatment induced an up-regulation of 26% and 39% for [3H]DAMGO and [3H]DTLET binding sites, respectively, without modification of receptor affinity. In deafferented rats, the treatment similarly induced an up-regulation of 31% and 29% for [3H]DAMGO and [3H]DTLET binding sites, respectively, on the contralateral side, and of 21% and 25%, respectively, on the ipsilateral side. These data demonstrate that the up-regulation induced by morphine tolerance is of similar magnitude for both presynaptic (on primary afferent fibers) and postsynaptic (on spinal neurons) opioid binding sites in the rat dorsal horn.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Enkephalin, Ala(2)-MePhe(4)-Gly(5)-,
http://linkedlifedata.com/resource/pubmed/chemical/Enkephalins,
http://linkedlifedata.com/resource/pubmed/chemical/Morphine,
http://linkedlifedata.com/resource/pubmed/chemical/Oligopeptides,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Opioid,
http://linkedlifedata.com/resource/pubmed/chemical/deltakephalin
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0304-3940
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
2
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pubmed:volume |
136
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
209-12
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:1322516-Animals,
pubmed-meshheading:1322516-Autoradiography,
pubmed-meshheading:1322516-Drug Tolerance,
pubmed-meshheading:1322516-Enkephalin, Ala(2)-MePhe(4)-Gly(5)-,
pubmed-meshheading:1322516-Enkephalins,
pubmed-meshheading:1322516-Morphine,
pubmed-meshheading:1322516-Neurons, Afferent,
pubmed-meshheading:1322516-Oligopeptides,
pubmed-meshheading:1322516-Rats,
pubmed-meshheading:1322516-Receptors, Opioid,
pubmed-meshheading:1322516-Spinal Cord,
pubmed-meshheading:1322516-Up-Regulation
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pubmed:year |
1992
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pubmed:articleTitle |
Up-regulation of [3H]DAMGO and [3H]DTLET opioid binding sites in laminae I-II of the spinal cord in intact and deafferented morphine-tolerant rats.
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pubmed:affiliation |
Unité de Recherche de Physiopharmacologie du Système Nerveux, INSERM, U. 161, Paris, France.
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pubmed:publicationType |
Journal Article
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