• Abbas Raisi and Rahim Mohammadi.
• Department of Clinical Sciences, Faculty of Veterinary Medicine, Lorestan University, Khormabad, Iran - raisi.a@lu.ac.ir.
• J Neurosurg Sci. 2019 Oct 1; 63 (5): 531-540.

BackgroundThe objective of this study was to assess the effect of locally administered ibuprofen (IBU) on transected peripheral nerve regeneration and functional recovery.MethodsSeventy-five male Wistar rats were divided into five experimental groups (N.=15), randomly: In authograft group (AUTO) a segment of sciatic nerve was transected and reimplanted reversely. In transected group (TC), left sciatic nerve was transected and stumps were fixed in the adjacent muscle. In treatment group defect was bridged using an egg shell membrane conduit (ESM/IBU) filled with 10 µL ibuprofen (100 ng/mL). In ESM conduit group (ESM), the conduit was filled with phosphate-buffered saline alone. In sham-operated group (SHAM), sciatic nerve was exposed and manipulated. Each group was subdivided into three subgroups of five animals each and regenerated nerve fibers were studied 4, 8 and 12 weeks after surgery.ResultsBehavioral testing, biomechanical studies, sciatic nerve functional study, electrophysiological, gastrocnemius muscle mass and morphometric indices confirmed faster recovery of regenerated axons in ESM/IBU than ESM group (P<0.05). In immunohistochemistry, location of reactions to S-100 in ESM/IBU was clearly more positive than that in ESM group.ConclusionsIbuprofen accelerated and improved functional recovery and morphometric indices of sciatic nerve. This study is expected to set a stage for testing the ibuprofen in the human patients.

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