中国神经再生研究(英文版) ›› 2015, Vol. 10 ›› Issue (1): 71-78.doi: 10.4103/1673-5374.150709

• 原著:周围神经损伤修复保护与再生 • 上一篇    下一篇

小间隙生物套管套接修复周围神经损伤:套管内神经纤维再生的规律

  

  • 收稿日期:2014-08-14 出版日期:2015-01-15 发布日期:2015-01-15
  • 基金资助:

    This study was supported by grants from the National Program on Key Basic Research Project of China (973 Program), No. 2014CB542200; Program for Innovative Research Team in University of Ministry of Education of China, No. IRT1201; the National Natural Science Foundation of China, No. 31271284, 31171150, 81171146, 30971526, 31100860, 31040043, 31371210; and Program for New Century Excellent Talents in University of Ministry of Education of China, No. BMU20110270.

Biological conduit small gap sleeve bridging method for peripheral nerve injury: regeneration law of nerve fibers in the conduit

Pei-xun Zhang #, Li-ya A #, Yu-hui Kou *, Xiao-feng Yin *, Feng Xue #, Na Han *, Tian-bing Wang, Bao-guo Jiang   

  1. Department of Trauma and Orthopedics, Peking University People’s Hospital, Beijing, China
  • Received:2014-08-14 Online:2015-01-15 Published:2015-01-15
  • Contact: Na Han, Ph.D., 876804725@qq.com. Yu-hou Kou, Ph.D., kouyuhui@163.com. Xiao-feng Yin, Ph.D., M.D., xiaofengyin@bjmu.edu.cn.

摘要:

生物套管2mm小间隙套接修复周围神经损伤的临床效果好于传统的神经外膜缝合,具备替代神经外膜缝合成为周围神经损伤创新修复模式的可能性。明确生物套管内神经纤维的再生规律是本次实验的目的。为此,实验在坐骨神经损伤模型上利用可降解生物套管2mm小间隙套接修复模式构建神经再生室,发现生物套管与组织相容性良好,套管内组织和细胞的凋亡明显减轻,套管内再生的神经纤维形状规则,许旺细胞和神经轴突的退变再生规律明显不同于传统的神经外膜缝合,在2-8周神经纤维再生的黄金时间段,相比于传统的神经外膜缝合,远近端的许旺细胞和神经纤维数量都维持在较高的水平上,且效果优于传统神经外膜缝合。结果为生物套管小间隙套接修复周围神经损伤的临床应用提供了客观可靠的理论基础。

关键词: 周围神经, 小间隙, 神经再生, 轴突, 许旺细胞, 修复, 损伤, 生物套管

Abstract:

The clinical effects of 2-mm small gap sleeve bridging of the biological conduit to repair peripheral nerve injury are better than in the traditional epineurium suture, so it is possible to replace the epineurium suture in the treatment of peripheral nerve injury. This study sought to identify the regeneration law of nerve fibers in the biological conduit. A nerve regeneration chamber was constructed in models of sciatic nerve injury using 2-mm small gap sleeve bridging of a biodegradable biological conduit. The results showed that the biological conduit had good histocompatibility. Tissue and cell apoptosis in the conduit apparently lessened, and regenerating nerve fibers were common. The degeneration regeneration law of Schwann cells and axons in the conduit was quite different from that in traditional epineurium suture. During the prime period for nerve fiber regeneration (2–8 weeks), the number of Schwann cells and nerve fibers was higher in both proximal and distal ends, and the effects of the small gap sleeve bridging method were better than those of the traditional epineurium suture. The above results provide an objective and reliable theoretical basis for the clinical application of the biological conduit small gap sleeve bridging method to repair peripheral nerve injury.

Key words: nerve regeneration, peripheral nerve, small gap, axons, Schwann cells, repair, injury, biological conduit, NSFC grants, neural regeneration