茶多酚对周围神经损伤的修复作用研究

doi:10.13418/j.issn.1001-165x.2020.03.012

中国临床解剖学杂志 ›› 2020, Vol. 38 ›› Issue (3) : 301-307. DOI: 10.13418/j.issn.1001-165x.2020.03.012

实验研究

茶多酚对周围神经损伤的修复作用研究

汤银娟¹，　陈龙²，　段彦之²，　李姝²，　朱斌²，　左志敏²，　王祥海³，　李振林³

作者信息 +

Effects of tea polyphenol on peripheral nerve injury and repair

TANG Yin-juan¹, CHEN Long², DUAN Yan-zhi², LI Shu², ZHU Bin², ZUO Zhi-min², WANG Xiang-hai³, LI Zhen-lin³

Author information +

文章历史 +

摘要

目的　研究茶多酚促进周围神经损伤修复的效果。方法　成年BALB/c小鼠48只，随机分为茶多酚治疗组、生理盐水组及假手术组，每组16只。前两组制备右侧坐骨神经夹伤模型后每天以灌胃法给药，假手术组仅暴露右侧坐骨神经但不做其它处理。术后14 d通过足印分析检测小鼠患肢的运动功能，针刺法检测感觉功能；随后每组6只小鼠取坐骨神经提取RNA进行qPCR检测，其余10只小鼠的坐骨神经用于制备NF-200和MBP免疫组化显示再生轴突与髓鞘；其腓肠肌称湿重后制备HE染色切片。结果　相对于生理盐水组，茶多酚治疗组的运动及感觉功能检测指标均有改善；腓肠肌湿重比及肌纤维平均横截面积的提高具有统计学意义；损伤神经的远端再生轴突及髓鞘也有提高。结论　茶多酚能改善由神经损伤所致的行为学功能丧失以及神经病理改变。

Abstract

Objective 　To explore the effects of tea polyphenol (TP) on peripheral nerve injury and repair.　Methods　48 adult BALB/c mice were randomly divided into three groups: a TP treatment group, a saline control group and a sham group. The right sciatic nerve of each mouse in the TP treatment group and the saline control group was injured by crush and then the mice were intragastrically administrated with TP or saline twice per day for successive 14 days. The mice in sham group were only exposed their right sciatic nerve without other treatment. The motor function of each mouse was detected by footprint assay and the sensory function was evaluated with acupuncture assessment 14 days after the surgery. Subsequently, the sciatic nerves of 6 mice in each group were collected for qPCR assay. The other 10 mice of each group were subjected to perform the NF-200 / MBP double immunostaining to show the regenerated axons and myelin in the distal trunk of the injured nerves. The gastrocnemius muscle was weighed and then to prepare the HE stained section.　Results　Compared with the saline control group, the TP treatment resulted in significantly improved functions of motor and sensory, higher wet weight ratio of gastrocnemius muscle and bigger area size of cross-section of myofibers, as well as more regenerated axons and myelin in the injured nerves. Conclusions　This study show that tea polyphenols could improve the behavioral functional loss and neuropathologic changes caused by nerve injury.

导出引用

汤银娟, 陈龙, 段彦之, 李姝, 朱斌, 左志敏, 王祥海, 李振林. 茶多酚对周围神经损伤的修复作用研究[J]. 中国临床解剖学杂志. 2020, 38(3): 301-307 https://doi.org/10.13418/j.issn.1001-165x.2020.03.012

TANG Yin-juan, CHEN Long, DUAN Yan-zhi, LI Shu, ZHU Bin, ZUO Zhi-min, WANG Xiang-hai, LI Zhen-lin. Effects of tea polyphenol on peripheral nerve injury and repair[J]. Chinese Journal of Clinical Anatomy. 2020, 38(3): 301-307 https://doi.org/10.13418/j.issn.1001-165x.2020.03.012

中图分类号： R322.85

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