中国神经再生研究(英文版) ›› 2017, Vol. 12 ›› Issue (4): 637-643.doi: 10.4103/1673-5374.205105

• 原著:周围神经损伤修复保护与再生 • 上一篇    下一篇

艾塞那肽促进损伤坐骨神经再生

  

  • 收稿日期:2017-03-27 出版日期:2017-04-15 发布日期:2017-04-15

Exenatide promotes regeneration of injured rat sciatic nerve

Ersin Kuyucu1, Bilal Gümüs2, Oytun Erbas3, Fatih Oltulu4, Arslan Bora5   

  1. 1 Department of Orthopedics and Traumatology, Faculty of Medicine, Istanbul Medipol University, Istanbul, Turkey; 2 Orthopedics Clinic, Antalya State Hospital, Antalya, Turkey; 3 Department of Physiology, Ege University Faculty of Medicine, Izmir, Turkey; 4 Department of Histology Clinic, Ege University Faculty of Medicine, Izmir, Turkey; 5 Department of Orthopedics and Traumatology, Izmir Atatürk Training and Educational Research Hospital, Izmir, Turkey
  • Received:2017-03-27 Online:2017-04-15 Published:2017-04-15
  • Contact: Ersin Kuyucu, M.D., ersinkuyucu@yahoo.com.tr.

摘要:

研究已证实了神经营养因子支持神经细胞的存活和促进轴突生长的作用。为研究胰高血糖素样肽1类似物艾塞那肽对横断坐骨神经的神经营养作用,实验在横断大鼠坐骨神经后,将艾塞那肽以10μg/d的剂量注射于背部皮下组织,共12周。电生理检测和运动功能测试结果显示,大鼠坐骨神经功能在给药12周后明显改善;立体显微镜和HE染色观察结果显示,大鼠损伤坐骨神经轴突数量明显增加。说明艾塞那肽对损伤坐骨神经有营养保护作用,可促进其再生。

ORCID:0000-0003-3976-9530(Ersin Kuyucu)

关键词: 神经再生, 坐骨神经, 胰高血糖素样肽1, 电生理, 立体显微镜, 组织学

Abstract:

Damage to peripheral nerves results in partial or complete dysfunction. After peripheral nerve injuries, a full functional recovery usually cannot be achieved despite the standard surgical repairs. Neurotrophic factors and growth factors stimulate axonal growth and support the viability of nerve cells. The objective of this study is to investigate the neurotrophic effect of exenatide (glucagon like peptide-1 analog) in a rat sciatic nerve neurotmesis model. We injected 10 μg/d exenatide for 12 weeks in the experimental group (n = 12) and 0.1 mL/d saline for 12 weeks in the control group (n = 12). We evaluated nerve regeneration by conducting electrophysiological and motor functional tests. Histological changes were evaluated at weeks 1, 3, 6, and 9. Nerve regeneration was monitored using stereomicroscopy. The electrophysiological and motor functions in rats treated with exenatide were improved at 12 weeks after surgery. Histological examination revealed a significant increase in the number of axons in injured sciatic nerve following exenatide treatment confirmed by stereomicroscopy. In an experimentally induced neurotmesis model in rats, exenatide had a positive effect on nerve regeneration evidenced by electromyography, functional motor tests, histological and stereomicroscopic findings.

Key words: nerve regeneration, sciatic nerve, glucagon like peptid 1, electromyography, stereomicroscopy, histology, neural regeneration