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DOI: 10.1055/s-2006-956239
Effects of Intrathecal Administration of FK506 after Sciatic Nerve Crush Injury
Publication History
Accepted: June 26, 2006
Publication Date:
30 November 2006 (online)
ABSTRACT
Although various administration routes of FK506 have been published, intrathecal administration of FK506 has not previously been reported in the literature. A daily dose of 0.05 mg/kg of FK506 was given (a small dose compared with those reported in the available literature). The authors used this small dose to obtain lower immunosuppression and neurotoxicity, and a higher axonal regeneration rate.
A total number of 40 female Wistar rats were used and randomly divided into four groups: control, sham, FK506-treated, and vehicle-treated. Sciatic nerve regeneration was evaluated by walking track analysis, an electrostimulation test, and light microscopic evaluation.
There was a statistically significant difference (p < 0.05) between FK506-treated and vehicle-treated groups at the end of 6 weeks according to both the walking track analysis and the electrostimulation test. Comparing the stimulus thresholds of the sham and FK506-treated group, no significant difference (p > 0,05) was observed.
Evaluation of the data revealed that FK506 had a beneficial effect on sciatic nerve regeneration.
KEYWORDS
FK506 - sciatic nerve crush - recovery - intrathecal administration
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Levent SarikciogluPh.D.
Department of Anatomy, Akdeniz University Faculty of Medicine
Antalya, Turkey