Gunay H, Kucuk L, Erbas O, Atamaz FC, Kucuk U, Coskunol E. The effectiveness of tetanus toxin on sciatic nerve regeneration: a preliminary experimental study in rats.
Microsurgery 2014;
34:384-9. [PMID:
24665036 DOI:
10.1002/micr.22249]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 02/22/2014] [Accepted: 02/28/2014] [Indexed: 12/17/2022]
Abstract
OBJECT
The purpose was to investigate the effects of local tetanus toxin (TeTx) application on sciatic nerve regeneration following a rat model of transection injury.
METHODS
After both sciatic nerves were transected and repaired with three epineural sutures, 12 male Wistar albino rats were divided into two groups. 0.25 ml (2.5 flocculation units) TeTx was injected into a piece of absorbable gelatin sponge in TeTx group. In controls, 0.25 ml saline injected. Assessments were performed by using climbing degrees, compound muscle action potentials (CMAPs) and histological parameters (axon number and axonal diameter) 12th week.
RESULTS
CMAPs amplitudes were 11.6 ± 4.7 mV and 1.4 ± 1.3 mV in gastrocnemius and interdigital muscles in TeTx group (5.8 ± 2.4 mV and 0.2 ± 0.1 mV, P < 0.05). Climbing degrees were significantly different (61.6 ± 1.7 vs. 38.3 ± 2.6, P < 0.05). Total axon numbers were higher (1341.1 ± 57.3 vs. 877.5 ± 34.9, P < 0.05) and the mean axon diameter was smaller (4.2 ± 2.1 vs. 2.5 ± 1.9, P < 0.05) in the TeTx group.
CONCLUSION
This preliminary study firstly demonstrated the effectiveness of TeTx on nerve repair in experimental sciatic rat model based on functional, electromyographic and histological parameters.
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