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Recombinant human fibroblast growth factor-2 promotes nerve regeneration and functional recovery after mental nerve crush injury
Cited 10 time in
Web of Science
Cited 10 time in Scopus
- Authors
- Issue Date
- 2017-04
- Publisher
- Neural Regeneration Research
- Citation
- Neural Regeneration Research, Vol.12 No.4, pp.629-636
- Abstract
- Several studies have shown that fibroblast growth factor-2 (FGF2) can directly affect axon regeneration after peripheral nerve damage. In this study, we performed sensory tests and histological analyses to study the effect of recombinant human FGF-2 (rhFGF2) treatment on damaged mental nerves. The mental nerves of 6-week-old male Sprague-Dawley rats were crush-injured for 1 minute and then treated with 10 or 50 mg/mL rhFGF2 or PBS in crush injury area with a mini Osmotic pump. Sensory test using von Frey filaments at 1 week revealed the presence of sensory degeneration based on decreased gap score and increased difference score. However, at 2 weeks, the gap score and difference score were significantly rebounded in the mental nerve crush group treated with 10 mg/mL rhFGF2. Interestingly, treatment with 10 mg/mL rhFGF had a more obviously positive effect on the gap score than treatment with 50 mg/mL rhFGF2. In addition, retrograde neuronal tracing with Dil revealed a significant increase in nerve regeneration in the trigeminal ganglion at 2 and 4 weeks in the rhFGF2 groups (10 mg/mL and 50 mg/mL) than in the PBS group. The 10 mg/mL rhFGF2 group also showed an obviously robust regeneration in axon density in the mental nerve at 4 weeks. Our results demonstrate that 10 mg/mL rhFGF induces mental nerve regeneration and sensory recovery after mental nerve crush injury.
- ISSN
- 1673-5374
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