Efficacy of Baishao Luoshi decoction(白芍络石方)on synaptic plasticity in rats with post stroke spasticity  

作　　者：XIE Le MAO Guo XIE Yao CAO Sijia ZHOU Shen JIANG Junlin YAO Ting FAN Jianhu LIU Dong KANG Fuliang WU Dahua GE Jinwen 

机构地区：[1]Neurology Department,Hunan Academy of Chinese Medicine,Changsha 410006,China [2]School of Humanities and Management,Hunan University of Chinese Medicine,Changsha 410208,China [3]College of pharmacy,Guizhou University of Traditional Chinese Medicine,Guiyang 550002,China [4]College of Integrated Traditional Chinese and Western Medicine,Hunan University of Chinese Medicine,Changsha 410208,China

出　　处：《Journal of Traditional Chinese Medicine》2023年第2期295-302,共8页中医杂志（英文版）

基　　金：Supported by the China Postdoctoral Science Foundation:Research on the Mechanism of Baishaoluoshi Decoction in Improving Poststroke Spasticity by KCC2-GABAAR Based on the Theory of“Gan Zhu Jin”(No.2020M682571);Natural Science Foundation of Hunan Province China:Research on the Mechanism of Post-stroke Spasticity by KCC2--GABAAR-Motoneuron Excitability and Chinese Traditional Medicine Intervention Based on the Theory of“Gan Zhu Jin”(No.2019JJ50343);the Scientific Research Project of Education Department of Hunan Province:Research on the Mechanism of Axonal Regeneration and TCM Intervention in Post-Stroke Spasticity Based on the Theory of“Gan Zhu Jin”by Slit-Robo Pathway(No.19C1423)。

摘　　要：OBJECTIVE:To evaluate the efficacy of Baishao Luoshi decoction(白芍络石方,BD)on synaptic plasticity in rats with post stroke spasticity(PSS),and to study the mechanism behind the action.METHODS:The PSS model of rat was established by middle cerebral artery occlusion(MCAO).The neurological deficit symptoms were evaluated by modified neurological deficit score(mN SS).Muscle tension were evaluated by Modified Ashworth score(MAS).Transmission electron microscopy(TEM)was used to observe the synaptic ultrastructure.The expression of synaptic plasticity-related protein brain derived neurotrophic factor(BDNF),growth associated protein-43(GAP43),synaptophysin(p38)and microtubule-associated protein 2(MAP2)in the brain tissue around the infarct were detected by Western blotting.RESULTS:We found that mNSS were significantly improved and limb spasticity was ameliorated treated by BD.The thickness of postsynaptic density and the synaptic curvature increased significantly.The expression of synaptic plasticity-related protein BDNF,GAP43,p38,MAP2 in the brain tissue around the infarct were raised remarkably after treated by BD.CONCLUSIONS:Alleviating PSS by BD may be related to rescuing the synaptic plasticity,which provides a probable new therapeutic method for PSS.

关 键 词：INFARCTION middle cerebral artery neuroprotection post stroke spasticity synaptic plasticity Baishaoluoshi decoction 

分 类 号：R285.5[医药卫生—中药学]