In this study, nerve guides composed of poly(D,L-lactide) (PDLLA) were fabricated and used in the repair of transected sciatic nerves (15-mm gaps) of rats. Nerve guides with a two-ply structure (inner layer dense, outer layer microporous) were prepared by controlling the solvent evaporation rate. Th
Effect of basic fibroblast growth factor and α-melanocytic stimulating hormone on nerve regeneration through a collagen channel
✍ Scribed by Dr. Annie Laquerriere; Pascal Peulve; Olivier Jin; Jérôme Tiollier; Michel Tardy; Hubert Vaudry; Jacques Hemet; Marc Tadie
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 716 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0738-1085
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
An experimental study on the rat sciatic nerve was performed to evaluate nerve regeneration through a collagen guide and to study the effects of α‐melanocytic stimulating hormone (α‐MSH) and basic fibroblast growth factor (b‐FGF) in accel erating axonal elongation. After transection, nerves were repaired over a 7 mm gap using a placental collagen type IV guide. The channel was filled with either a b‐FGF solution or an α‐MSH solution or was produced with b‐FGF incorporated into the guide. Four weeks later, only groups in which b‐FGF had been injected or incorporated displayed a significant somatosensory evoked potential response. Histological and quantitative analysis of nerve fibres confirmed the existence of nerve continuity in groups receiving an α‐MSH solution or a channel containing b‐FGF. These results demonstrate that α‐MSH in solution and b‐FGF incorporated into a collagen type IV channel enhance peripheral nerve regeneration. However, at 4 weeks, only b‐FGF (3 ng) restores functional activity.
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