Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-5-12
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0304-3940
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
283
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
113-6
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Formalin-induced central sensitization in the rat: somatosensory evoked potential data.
pubmed:affiliation
Laboratorium voor Fysiologie, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090, Brussels, Belgium. plebrun@fysp.vub.ac.be
pubmed:publicationType
Journal Article