Source:http://linkedlifedata.com/resource/pubmed/id/10739888
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2000-5-12
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pubmed:abstractText |
Cortical somatosensory evoked potentials were used to measure secondary hyperaesthesia resulting from subcutaneous 1 and 5% formalin in unanesthetized rats with permanently implanted electrodes. Near field responses were evoked by contralateral non-noxious electrical stimulation of the middle third of the tail. 0.05 ml 5% formalin injected subcutaneously at the base of the tail increased the amplitude of P1-N1 a maximum of 158.5+/-10.91% and N2 a maximum of 150.4+/-21.40% compared to controls (P<0.05 and P<0.01). Amplitudes were increased from 5 min after injection to the end of the 70 min test period. The effect of 1% formalin was equivalent to 5% formalin. This increase was prevented by pretreatment with 5 mg/kg ketamine or 5 mg/kg morphine, in agreement with behavioral and electrophysiological data. Cortical somatosensory evoked potentials are objective measures of central sensitization which may usefully complement current behavioral models for the evaluation of analgesic drugs.
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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 |
Apr
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pubmed:issn |
0304-3940
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
283
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
113-6
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:10739888-Animals,
pubmed-meshheading:10739888-Cerebral Cortex,
pubmed-meshheading:10739888-Electric Stimulation,
pubmed-meshheading:10739888-Evoked Potentials, Somatosensory,
pubmed-meshheading:10739888-Formaldehyde,
pubmed-meshheading:10739888-Hyperesthesia,
pubmed-meshheading:10739888-Ketamine,
pubmed-meshheading:10739888-Male,
pubmed-meshheading:10739888-Morphine,
pubmed-meshheading:10739888-Pain,
pubmed-meshheading:10739888-Rats,
pubmed-meshheading:10739888-Rats, Wistar,
pubmed-meshheading:10739888-Time Factors
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pubmed:year |
2000
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pubmed:articleTitle |
Formalin-induced central sensitization in the rat: somatosensory evoked potential data.
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pubmed:affiliation |
Laboratorium voor Fysiologie, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090, Brussels, Belgium. plebrun@fysp.vub.ac.be
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pubmed:publicationType |
Journal Article
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