Acta Neuropharmacologica

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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)

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 The other groups were withdrawn after 2 hours of ischemia to achieve reperfusion.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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