Source:http://linkedlifedata.com/resource/pubmed/id/10446320
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1999-10-7
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pubmed:abstractText |
The anatomical localization of nociceptin receptors was examined by in vitro quantitative autoradiography techniques in rat spinal cord sections by using [(125)I-Tyr(14)]nociceptin. [(125)I-Tyr(14)]nociceptin appeared to interact with a single class of binding sites (K(D)=0.1 nM) present in the grey matter in all laminae of the spinal cord from cervical to sacral levels. Pre-incubation of sections in the presence of 150 mM NaCl, did not modify the radioligand affinity but significantly augmented the number of accessible binding sites and increased specific binding of [(125)I-Tyr(14)]nociceptin differentially on each laminae. In particular, the superficial layers of the dorsal horn exhibited the highest density of sites after pre-wash. Continuous intrathecal infusion of morphine produced a tolerance accompanied by a significant increase in nociceptin site density in the superficial layers. Thus, nociceptin binding sites may have different properties dependent upon the layer and may be up-regulated during the process of opioid-induced tolerance.
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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/Analgesics, Opioid,
http://linkedlifedata.com/resource/pubmed/chemical/Iodine Radioisotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Morphine,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Opioid,
http://linkedlifedata.com/resource/pubmed/chemical/nociceptin receptor
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1999 Elsevier Science B.V.
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pubmed:issnType |
Print
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pubmed:day |
14
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pubmed:volume |
838
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
85-94
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10446320-Amino Acid Sequence,
pubmed-meshheading:10446320-Analgesics, Opioid,
pubmed-meshheading:10446320-Animals,
pubmed-meshheading:10446320-Autoradiography,
pubmed-meshheading:10446320-Drug Tolerance,
pubmed-meshheading:10446320-Iodine Radioisotopes,
pubmed-meshheading:10446320-Male,
pubmed-meshheading:10446320-Molecular Sequence Data,
pubmed-meshheading:10446320-Morphine,
pubmed-meshheading:10446320-Radioligand Assay,
pubmed-meshheading:10446320-Rats,
pubmed-meshheading:10446320-Rats, Sprague-Dawley,
pubmed-meshheading:10446320-Receptors, Opioid,
pubmed-meshheading:10446320-Spinal Cord
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pubmed:year |
1999
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pubmed:articleTitle |
Nociceptin receptors in the rat spinal cord during morphine tolerance.
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pubmed:affiliation |
Institut de Pharmacologie et de Biologie Structurale, CNRS, 205 Route de Narbonne, 31077, Toulouse, France.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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