血小板衍生生长因子对大鼠种植体周围神经再生影响的研究

目的 探讨血小板衍生生长因子（PDGF）对大鼠种植体周围神经再生的影响。方法 建立大鼠股骨植入种植体模型,愈合早期连续注射PDGF,采用免疫组化染色的方法分析PDGF对种植体周围神经再生的影响。结果 PDGF增加大鼠股骨种植体周围早期神经纤维数量,对种植体周围后期神经纤维数量无显著影响。同时,这些神经具有周围神经纤维的典型结构。结论 PDGF可以促进种植体周围早期神经再生。本研究为实现PDGF促进种植体周围神经再生,进而改善种植体感觉功能的临床应用,提供一定的实验依据。

Effects of platelet-derived growth factor on nerve regeneration around implant in rats

Objective To investigate the effect of platelet-derived growth factor (PDGF) on nerve regeneration in peri-implant tissues. Methods SD rats with implants in their femurs were injected with PDGF solution. The effects of PDGF on nerve regeneration in peri-implant tissues were analyzed by immunohistochemical staining. Results PDGF increased the number of nerve fibers in peri-implant tissues at early stage. PDGF had no significant effect on the number of nerve fibers in peri-implant tissues at late stage. Moreover, these nerves had a typical structure of peripheral nerve fibers. Conclusion PDGF can promote nerve regeneration in peri-implant tissues at early stage. This study provided a certain experimental basis for the clinical application of PDGF to promote nerve regeneration and further improve the sensory function of the implant.