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Xuefu Zhuyu decoction improves neurological dysfunction by increasing synapsin expression after traumatic brain injury

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Neural Regeneration Research 2018年第8期13卷 1417-1424页

作者： Lin Zhu Tao Tang Rong Fan Jie-Kun Luo Han-Jin Cui Chun-Hu Zhang Wei-Jun Peng Peng Sun Xin-Gui Xiong Yang Wang Laboratory of Ethnopharmacology Institute of Integrated Traditional Chinese and Western Medicine Xiangya Hospital Central South University Changsha Hunan Province China Department of-Integrated Traditional Chinese and Western Medicine Second Xiangya Hospital Central South University Changsha Hunan Province China College of Pharmacy Shandong University of Traditional Chinese Medicine Jinan Shandong Province China

Xuefu Zhuyu decoction has been used for treating traumatic brain injury and improving post-traumatic dysfunction, but its mechanism of action needs further investigation. This study established rat models of traumatic brain injury by controlled cortical impact. Rat models were intragastrically administered 9 and 18 g/kg Xuefu Zhuyu decoction once a day for 14 or 21 days. Changes in neurological function were assessed by modified neurological severity scores and the Morris water maze. Immunohistochemistry, western blot assay, and re- verse-transcription polymerase chain reaction were used to analyze synapsin protein and mRNA expression at the injury site of rats. Our results showed that Xuefu Zhuyu decoction visibly improved neurological function of rats with traumatic brain injury. These changes were accompanied by increased expression of synaptophysin, synapsin I, and postsynaptic density protein-95 protein and mRNA in a dose-de- pendent manner. These findings indicate that Xuefu Zhuyu decoction increases synapsin expression and improves neurological deficits alder traumatic brain injury.

关键词： nerve regeneration traumatic brain injury Xuefu Zhuyu decoction neurological dysfunction synapsin synaptophysin synapsin I posts vnaptic density protein-95 neuroprotection neural regeneration

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