中国神经再生研究(英文版) ›› 2015, Vol. 10 ›› Issue (1): 84-89.doi: 10.4103/1673-5374.150711

• 原著:周围神经损伤修复保护与再生 • 上一篇    下一篇

传统中药淫羊藿甙局部给药可促进周围神经再生及功能恢复

  

  • 收稿日期:2014-11-04 出版日期:2015-01-15 发布日期:2015-01-15

Local administration of icariin contributes to peripheral nerve regeneration and functional recovery

Bo Chen 1,  #, Su-ping Niu 2, #, Zhi-yong Wang 3, Zhen-wei Wang 2, Jiu-xu Deng 1, Pei-xun Zhang 1, Xiao-feng Yin 1, Na Han 1, Yu-hui Kou 1, *,
Bao-guo Jiang 1, *   

  1. 1 Department of Trauma and Orthopedics, Peking University People’s Hospital, Beijing, China
    2 Beijing Shijitan Hospital, Capital Medical University, Beijing, China
    3 Health Science Center, Peking University, Beijing, China
  • Received:2014-11-04 Online:2015-01-15 Published:2015-01-15
  • Contact: Yu-hui Kou, M.D., yuhuikou@bjmu.edu.cn. Bao-guo Jiang, M.D.,jiangbaoguo@vip.sina.com.
  • Supported by:

    This study was supported by grants from the National Program on Key Basic Research Project of China (973 Program), No. 2014CB542200; the National Natural Science Foundation of China, No. 31271284, 81171146, 31100860; the Natural Science Foundation of Beijing of China, No. 7142164; and Program for Innovative Research Team in University of Ministry of Education of China, No. IRT1201.

摘要:

作者前期动物实验证实传统中药淫羊藿提取液全身给药具有促周围神经再生的作用。本次实验拟进一步探索淫羊藿局部给药对周围神经再生的治疗效果。实验用聚乳酸-羟基乙酸共聚物生物套管套接大鼠右侧坐骨神经5mm缺损,然后向套接间隙内分别注入生理盐水、神经生长因子水溶液、淫羊藿甙混悬液、神经生长因子缓释微球混悬液。12周后,与神经生长因子水溶液和生理盐水组治疗的大鼠相比,淫羊藿甙混悬液治疗的大鼠坐骨神经传导速度及有髓神经纤维数量明显增加,且效果与神经生长因子缓释微球接近。说明淫羊藿甙局部应用与促神经再生因子神经生长因子缓释剂一样能提高周围神经再生的效果。

关键词: 神经再生, 周围神经, 坐骨神经, 中药, 淫羊藿甙, 套接缝合, 神经生长因子, NSFC grant

Abstract:

Our previous study showed that systemic administration of the traditional Chinese medicine Epimedium extract promotes peripheral nerve regeneration. Here, we sought to explore the therapeutic effects of local administration of icariin, a major component of Epimedium extract, on peripheral nerve regeneration. A poly(lactic-co-glycolic acid) biological conduit sleeve was used to bridge a 5 mm right sciatic nerve defect in rats, and physiological saline, nerve growth factor, icariin suspension, or nerve growth factor-releasing microsphere suspension was injected into the defect. Twelve weeks later, sciatic nerve conduction velocity and the number of myelinated fibers were notably greater in the rats treated with icariin suspension or nerve growth factor-releasing microspheres than those that had received nerve growth factor or physiological saline. The effects of icariin suspension were similar to those of nerve growth factor-releasing microspheres. These data suggest that icariin acts as a nerve growth factor-releasing agent, and indicate that local application of icariin after spinal injury can promote peripheral nerve regeneration.

Key words: nerve regeneration, peripheral nerve, sciatic nerve, traditional Chinese medicine, icariin, sleeve bridging suture, nerve growth factor, NSFC grants, neural regeneration