神经药理学报

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大血藤总酚酸对局灶性脑缺血再灌注大鼠脑组织氧化应激水平和能量代谢的影响

河南中医药大学研究生院,郑州,450046,中国   

  1. 河南中医药大学研究生院,郑州,450046,中国
  • 出版日期:2019-02-26 发布日期:2020-01-09
  • 通讯作者: 苗明三,男,教授,博士;研究方向:中药药理教学与研究;E-mail:miaomingsan @163.com
  • 作者简介:苗明三,男,教授,博士;研究方向:中药药理教学与研究;E-mail:miaomingsan @163.com
  • 基金资助:
    国家重大新药创制项目(No.2009ZX09103-324),河南省科技攻关项目(No.152102310103、No.152102410049)

Effects of Sargentodoxacuneata Total Phenolic Acids on Oxidative Stress Level and Energy Metabolism of Brain Tissues in Rats with Cerebral Ischemia Reperfusion Injury

MIAO Ming-san,PENG Meng-fan,FANG Xiao-yan,JIA Jiao-jiao,BAI Ming   

  1. Graduate School of Henan University of Chinese Medicine,Zhengzhou,450046,China
  • Online:2019-02-26 Published:2020-01-09
  • Contact: 苗明三,男,教授,博士;研究方向:中药药理教学与研究;E-mail:miaomingsan @163.com
  • About author:苗明三,男,教授,博士;研究方向:中药药理教学与研究;E-mail:miaomingsan @163.com
  • Supported by:
    国家重大新药创制项目(No.2009ZX09103-324),河南省科技攻关项目(No.152102310103、No.152102410049)

摘要:

目的:探讨大血藤总酚酸对局灶性脑缺血再灌注大鼠脑组织氧化应激水平和能量代谢的影响。方法:实验分为7 组:假手术组、模型组、尼莫地平组(20 mg·kg-1)、脑络通组(500 mg·kg-1)以及大血藤总酚酸大、中、小剂量组(300、150 和75 mg·kg-1),灌胃给药,每天1 次,连续7 d。末次给药1h 后,线栓法建立大鼠局灶性脑缺血再灌注模型,假手术组除外,其他各组缺血2 h 后拔线以实现再灌注,再灌注24 h 后,TTC 染色脑组织,拍照并计算梗死面积,并测定脑组织中超氧化物歧化酶(superoxide dismutase,SOD)、丙二醛(malondialdehyde,MDA)水平和ATP 酶(Na+-K+-ATP 酶和Mg2+-ATP 酶)活力。结果:与模型组比,尼莫地平,脑络通和不同剂量大血藤总酚酸均能不同程度减少脑梗死面积、降低脑匀浆MDA 水平,升高SOD 水平和增加ATP 酶活力(P<0.05或P<0.01)。大血藤总酚酸对脑缺血再灌注大鼠的改善作用呈剂量依赖性,且大剂量大血藤总酚酸对脑梗死面积的降低作用和脑组织中SOD、MDA 的改善作用与脑络通作用相似,但弱于尼莫地平的作用;对脑组织中ATP酶活力的改善作用与尼莫地平作用相似,但弱于脑络通的作用。结论:局灶性脑缺血再灌注大鼠模型复制成功。
大血藤总酚酸具有保护大鼠脑缺血再灌注损伤的作用,该作用可能与其具有的抗氧化与改善脑组织能量代谢有关。

关键词: 大血藤总酚酸, 线栓法, 局灶性脑缺血再灌注, 氧化应激, 能量代谢

Abstract:

Objective:To investigate the effect of Sargentodoxacuneata total phenolic acids on oxidative stress level and energy metabolism in brain tissues of rats with focal cerebral ischemiareperfusion. Methods:The experiment was divided into 7 groups:sham operation group,model group,Nimodipine group (20 mg·kg-1),Naoluotong group (500 mg·kg-1),Sargentodoxacuneata total phenolic acids large,middle and small dose groups (300,150,75 mg·kg-1). The drug was administered orally once a day for 7 days. One hour after the last administration,the model of focal cerebral ischemia-reperfusion in rats was established by thread embolization except in the shamoperated group. The other groups were withdrawn after 2 hours of ischemia to achieve reperfusion. After 24 hours of reperfusion,stained brain tissue with TTC,took photos and calculated infarct size. SOD,MDA levels and ATPase (Na+-K+-ATPase and Mg2+-ATPase) activity in brain tissue were also measured. Results:Compared with the model group,Nimodipine,Naoluotong and different doses of Sargentodoxacuneata total phenolic acids could reduce the area of cerebral infarction,reduce the MDA level,increased SOD level and ATP enzyme activity in brain tissue( P<0.01 or P<0.05). The effect of Sargentodoxacuneata total phenolic acids on cerebral ischemia-reperfusion in rats was dose-dependent. The effect of large dose Sargentodoxacuneata total phenolic acids on cerebral infarction area and SOD and MDA in brain tissue was similar to that of Naoluotong,but weaker than that of nimodipine. The improvement of ATP enzyme activity in brain tissue was similar to that of Nimodipine,but weaker than that of Naoluotong. Conclusion:Focal cerebral ischemia-reperfusion rat model was successfully reproduced. Sargentodoxacuneata total phenolic acids has a protective effect on focal cerebral ischemia-reperfusion rat model,has protective effect on cerebral ischemiareperfusion injury in rats,which may be related to its antioxidant activity and improvement of energy metabolism in brain tissue.

Key words: Sargentodoxacuneata total phenolic acids, thread method, cerebral ischemia reperfusion, anti-oxidation, energy metabolism

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