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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1994-4-4
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pubmed:abstractText |
In prior studies, rats with a chronic constriction injury to the sciatic nerve have been found to have small- to medium-sized, pyknotic, and hyperchromatic neurons ('dark neurons'; DNs) in spinal dorsal horn laminae I-III. It has been proposed that DNs are produced by an excitotoxic insult involving N-methyl-D-aspartate receptor activation subsequent to ectopic nociceptor discharge, and that at least some DNs are inhibitory interneurons whose functional impairment or death contributes to a central state of hyperexcitability that underlies neuropathic hyperalgesia and allodynia. We show here that laminae I-III DNs are also present 2 days after a surgical procedure that does not include major nerve damage. We propose that this is also the result of a nociceptor-driven excitotoxic insult and that the functional impairment of the affected neurons may contribute to postoperative pain and tenderness.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0304-3940
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
162
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
78-80
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:8121641-Animals,
pubmed-meshheading:8121641-Interneurons,
pubmed-meshheading:8121641-Male,
pubmed-meshheading:8121641-Nerve Degeneration,
pubmed-meshheading:8121641-Neurons,
pubmed-meshheading:8121641-Nociceptors,
pubmed-meshheading:8121641-Pain, Postoperative,
pubmed-meshheading:8121641-Rats,
pubmed-meshheading:8121641-Rats, Sprague-Dawley,
pubmed-meshheading:8121641-Spinal Cord,
pubmed-meshheading:8121641-Synapses
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pubmed:year |
1993
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pubmed:articleTitle |
Does pain damage spinal cord neurons? Transsynaptic degeneration in rat following a surgical incision.
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pubmed:affiliation |
Department of Orthopaedics, University of Göteborg, Sahlgren Hospital, Sweden.
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pubmed:publicationType |
Journal Article
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