中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (27): 4061-4067.doi: 10.3969/j.issn.2095-4344.2016.27.016

• 脑及脊髓损伤动物模型 Animal models of brain and spinal cord injuries • 上一篇    下一篇

颅脑损伤促进的坐骨神经再生

何新泽1,王  维2,马建军3,呼铁民4,于昌玉1,高云峰1,程兴龙4,王  培1   

  1. 承德医学院附属医院,1手足外科,4神经外科,河北省承德市  067000;2秦皇岛市第一医院手足外科,河北省秦皇岛市  066308;3承德医学院研究生学院,河北省承德市   067000
  • 修回日期:2016-04-04 出版日期:2016-06-30 发布日期:2016-06-30
  • 通讯作者: 王培,硕士,教授,硕士生导师,承德医学院附属医院手足外科,河北省承德市 067000
  • 作者简介:何新泽,男,1985年生,山东省滨州市人,汉族,在读硕士,主治医师,主要从事骨外科、神经损伤与修复的研究。
  • 基金资助:

    河北省卫生厅指令性课题(20130027);河北省科技厅指令性课题(142777105D);河北省承德市科技局课题(20123128)

Craniocerebral injury promotes sciatic nerve regeneration

He Xin-ze1, Wang Wei2, Ma Jian-jun3, Hu Tie-min4, Yu Chang-yu1, Gao Yun-feng1, Cheng Xing-long4, Wang Pei1   

  1. 1Department of Hand and Foot Surgery, 4Department of Neurosurgery, Affiliated Hospital of Chengde Medical University, Chengde 067000, Hebei Province, China; 2Department of Hand and Foot Surgery, First Hospital of Qinhuangdao, Qinhuangdao 066308, Hebei Province, China; 3Graduate School, Chengde Medical University, Chengde 067000, Hebei Province, China
  • Revised:2016-04-04 Online:2016-06-30 Published:2016-06-30
  • Contact: Wang Pei, Master, Professor, Master’s supervisor, Department of Hand and Foot Surgery, Affiliated Hospital of Chengde Medical University, Chengde 067000, Hebei Province, China
  • About author:He Xin-ze, Studying for master’s degree, Attending physician, Department of Hand and Foot Surgery, Affiliated Hospital of Chengde Medical University, Chengde 067000, Hebei Province, China
  • Supported by:

    the Mandatory Subject of Hebei Province Health Department, No. 20130027; the Mandatory Subject of Hebei Province Science and Technology Department, No. 142777105D; a grant from Chengde Municipal Science and Technology Bureau of Hebei Province, No. 20123128

摘要:

文章快速阅读:

文题释义:
周围神经:
除中枢神经(脑和脊髓)以外的所有神经,包括神经节、神经干、神经丛及神经终末装置;周围神经可根据连于中枢的部位不同分为连于脑的12对脑神经和连于脊髓的31对脊神经。
Wallerian变性:损伤周围神经远端轴突24-48 h后从创伤部位到运动或感觉受体一段距离的区域,发生远端轴突和周围髓鞘崩解,许旺细胞肿胀聚集形成神经内膜管,近侧轴突也发生逆向变性至随后轴索再生长的部位的相邻一两个郎飞节点。

 

摘要
背景:
研究表明大鼠颅脑损伤对坐骨神经损伤的修复有促进作用,然而其具体机制尚不明确。
目的:于形态学和组织学进一步探索颅脑损伤对坐骨神经损伤修复的作用机制。
方法:选用SPF级健康雄性SD大鼠60只,随机分为2组,颅脑损伤合并坐骨神经损伤模型为实验组,单纯坐骨神经损伤模型为对照组。采用经典Feeney法颅脑损伤模型和SunderlandV型坐骨神经损伤模型。于造模后8,12周检测大鼠坐骨神经指数;行坐骨神经吻合处神经组织Masson染色、NF200免疫荧光化学染色观察神经再生情况;采用透射电镜观察再生轴突数。
结果与结论:造模后8,12周,与对照组相比,实验组大鼠步态、坐骨神经指数恢复更好。实验组大鼠Masson染色显示神经外膜胶原纤维增生较少、轴突排列整齐。NF200免疫荧光染色显示实验组再生神经密度高、排列规律。透射电镜显示实验组再生轴突排列整齐、胶原瘢痕增生较少、髓鞘板层分布整齐、规则。结果提示大鼠颅脑损伤可能通过减少神经断端胶原瘢痕形成促进周围神经损伤的修复。

 

 

关键词: 实验动物, 神经损伤与修复动物模型, 颅脑损伤, 周围神经, 神经修复, 神经再生, 瘢痕

Abstract:

BACKGROUND: Studies have shown that craniocerebral injury can promote the repair of sciatic nerve injury in rats, but its precise mechanism remains unclear.
OBJECTIVE: To further explore the action mechanism of craniocerebral injury on the repair of sciatic nerve injury using morphology and histology.
METHODS: Sixty specific-pathogen-free healthy male Sprague-Dawley rats were randomly divided into two groups. Rats with craniocerebral injury and sciatic nerve injury were considered as the experimental group. Rats with simple sciatic nerve injury were considered as the control group. Classical Feeney method was used in models of craniocerebral injury and SunderlandV sciatic nerve injury. At 8 and 12 weeks after modeling, sciatic nerve index was detected. Masson staining and NF200 immunofluorescence staining were used to observe the nerve regeneration at the anstomotic site. Transmission electron microscope was used to observe the number of regenerative axons.
RESULTS AND CONCLUSION: At 8 and 12 weeks after modeling, compared with the control group, gait and sciatic nerve index recovered better in the experimental group. In the experimental group, Masson staining showed fewer nerve membrane collagen fibers, and the axon arranged neatly. NF200 immunohistochemistry showed that in the experimental group, the density of regenerated nerves was high, and nerves were regularly distributed. Transmission electron microscopy showed that in the experimental group, regenerative axons were regularly arranged, collagen scar was less, and myelin layer arranged regularly. Results suggested that the craniocerebral injury in rats may promote the repair of peripheral nerve injury by reducing scar collagen in nerve endings.

 

 

Key words: Brain Injuries, Peripheral Nerves, Nerve Regeneration, Cicatrix, Tissue Engineering

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