四种开窍药对急性不完全性脑缺血再灌注损伤模型大鼠的脑保护作用
作者:
作者单位:

(1. 广州中医药大学,广州 510405; 2. 广东省中医院珠海医院,广东珠海 519015; 3. 广州中医药大学第一附属医院,广州 510405)

中图分类号:

R-33

基金项目:

广东省科技计划项目(2016A030303053)


Protective effects of resuscitation⁃inducing herbs on acute incomplete cerebral ischemia in rats
Author:
Affiliation:

(1. Guangzhou University of Chinese Medicine,Guangzhou 510405,China; 2. Zhuhai Brach of Guangdong Hospital of traditional Chinese Medicine, Zhuhai 510915; 3. The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405)

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    摘要:

    目的 单味开窍药均有一定的脑保护作用,但还缺乏系统的对比研究?因此,本实验通过对比β?细辛醚?冰片?麝香酮及苏合香挥发油对急性不完全性脑缺血再灌注模型大鼠的作用,探讨四种开窍药的脑保护作用及其作用机制?方法 建立颈动脉结扎致大鼠急性不完全性脑缺血再灌注损伤模型,经四种开窍药物干预后,取全脑检测各组大鼠脑含水量,血清测定超氧化歧物酶(SOD)?丙二醛(MDA)?谷胱苷肽过氧化物酶(GSH?PX)?内皮素(ET?1)?降钙素基因相关肽(CGRP),脑组织检测B 淋巴细胞瘤基因(bcl?2),bcl?2 相关x 蛋白(bax)?结果 与模型组比较,β?细辛醚组?冰片组?苏合香组大鼠脑含水量均明显降低,冰片组SOD 含量显著增高,麝香酮组及苏合香组MDA 含量显著降低;各药物组与模型组相比GSH?PX 含量显著增高?ET?1 含量显著降低,脑组织内bcl?2 蛋白的含量升高,bax 蛋白含量下降,bcl?2/ bax 较模型组增高?结论 四种开窍药均能不同程度改善缺血再灌注造成的脑损伤情况,冰片在降低脑含水量方面效果最佳,苏合香挥发油能有效减少氧化应激损伤作用,麝香酮可明显增加bcl?2 蛋白,降低bax 蛋白,从而抑制脑细胞凋亡,β?细辛醚作用居中,但整体上四种开窍药有效成分/ 部位对脑缺血损伤均有一定的保护作用?

    Abstract:

    Objective Some research on the brain?protective effects of single?taste drugs has been performed, but there is a lack of research comparing them. The purpose of this research was thus to explore the protective effects and mechanism of action of the effective components of resuscitation?inducing herbs, namely, β?asarone, borneol, muscone, and Styrax naphtha, on acute incomplete cerebral ischemia model rats. Methods This model was established by temporarily ligaturing the common carotid arteries bilaterally. The changes of cerebral water content and SOD, MDA, GSH?Px, ET?1, and CGRP activities in the serum were determined, and brain tissue was used to detect Bcl?2 and Bax proteins. Results Compared with those in the model group, cerebral water content decreased significantly in the β?asarone borneol, and Styrax naphtha groups; serum content of SOD markedly increased in the borneol group; serum content of MDA markedly decreased in the muscone and Styrax naphtha groups; serum content of GSH?PX increased in all drug groups; serum content of ET?1 decreased in all drug groups; and serum content of CGRP increased in all drug groups compared with the levels in the sham?operated and model groups, although no significant differences were noted. The level of Bcl?2 protein in the brain tissues of each drug group increased, while that of Bax protein decreased, with the Bcl?2/ Bax ratio being higher than in the model group. Conclusions Resuscitation?inducing herbs can improve ischemia reperfusion brain injury as revealed by different measures. Borneol significantly reduced the cerebral water content. Styrax naphtha showed the strongest reduction of oxidative stress damage. Muscone clearly increased Bcl?2 and reduced Bax protein, which may prolong the process of apoptosis. β?asarone effect centered. Overall, the studied components have certain protective effects against cerebral ischemia injury. Active components of the four resuscitation?inducing herbs reduce the degree of cerebral edema caused by ischemia, oxidative stress injury, cerebral ischemic neuron injury, and inhibition of apoptosis, which may have protective effects against cerebral ischemia injury.

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黄丽,朱彩霞,张芹欣,方永奇,李翎.四种开窍药对急性不完全性脑缺血再灌注损伤模型大鼠的脑保护作用[J].中国比较医学杂志,2018,28(8):77~82.

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  • 收稿日期:2018-01-08
  • 在线发布日期: 2018-09-17
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