Abstract |
Static and dynamic allodynia occurred in a rat model of neuropathic pain induced by chronic constriction injury (CCI) of the sciatic nerve. Static allodynia was detected within 1 day after the CCI surgery, and persisted for 28 days. Dynamic allodynia displayed a slower course of development with a late onset, and statistically significant changes were achieved between 14 and 28 days after the surgery. Mexiletine at 10 and 30 mg/kg, s.c. produced a significant and dose-dependent inhibition of CCI-induced static and dynamic allodynia on day 14 post-surgery. Pregabalin, used as a reference drug, also significantly inhibited both static and dynamic allodynia at 30 and 60 mg/kg, p.o. These findings rationalize the clinical use of mexiletine for treatment of neuropathic pain.
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Authors | Etsuko Nakazato-Imasato, Sachi Tanimoto-Mori, Yoichi Kurebayashi |
Journal | The Journal of veterinary medical science
(J Vet Med Sci)
Vol. 71
Issue 7
Pg. 991-4
(Jul 2009)
ISSN: 0916-7250 [Print] Japan |
PMID | 19652492
(Publication Type: Journal Article)
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Chemical References |
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Topics |
- Analgesics
(therapeutic use)
- Animals
- Chronic Disease
- Constriction, Pathologic
- Dose-Response Relationship, Drug
- Hyperalgesia
(drug therapy)
- Mexiletine
(therapeutic use)
- Pain Measurement
- Rats
- Sciatic Nerve
(injuries)
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