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Experimental neurology · Jun 2000
A behavioral test paradigm to measure the aversive quality of inflammatory and neuropathic pain in rats.
- C J LaBuda and P N Fuchs.
- Department of Psychology, University of Texas at Arlington, Arlington, Texas 76019, USA.
- Exp. Neurol. 2000 Jun 1; 163 (2): 490-4.
AbstractThe present experiment assessed the aversive quality of neuropathic and inflammatory pain in rats. Compared to sham-treated animals, L5 ligated (neuropathic) and complete Freund's adjuvant (inflammatory)-treated animals displayed an initial period of escape followed by avoidance of a preferred location of the test chamber that was associated with mechanical stimulation of the hyperalgesic paw. The onset of the avoidance behavior occurred during the first 10-15 min of behavioral testing and was maximal at 30 min. It is concluded that animals find mechanical stimulation of the hyperalgesic paw aversive and that this behavioral test paradigm is an additional method that may be used to assess nociception in rat neuropathic and inflammatory models.Copyright 2000 Academic Press.
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