The present study was designed to determine microtubule-associated protein-2 and synaptophysin expression in the hippocampal CA3 region in a rat model of middle cerebral artery occlusion. The rats were treated with ac...The present study was designed to determine microtubule-associated protein-2 and synaptophysin expression in the hippocampal CA3 region in a rat model of middle cerebral artery occlusion. The rats were treated with acupuncture at Baihui （GV 20）, Qubin （GB 7）, and Qianding （GV 21） points, in addition to exercise training. Results were compared with rats undergoing exercise training only. The Y-maze method and immunohistochemistry revealed decreased error frequency of passing through Y-maze, as well as significantly increased microtubule-associated protein-2 and synaptophysin expression, in the acupuncture with exercise training group compared with the model and exercise training groups after 5 weeks. Microtubule-associated protein-2 and synaptophysin expressions negatively correlated with error frequency of passing through the Y-maze. These results suggested that acupuncture combined with exercise training improved learning and memory functions in a rat model of cerebral infarction. The mechanisms of action were hypothesized to be associated with dendritic or synaptic plasticity in the ipsilateral hippocampal CA3 region.展开更多
Following granulocyte colony-stimulating factor （G-CSF） treatment,the growth of processes in cul-tured rat retinal ganglion cells （RGCs） in vitro,expression of growth associated protein 43,and expression of microt...Following granulocyte colony-stimulating factor （G-CSF） treatment,the growth of processes in cul-tured rat retinal ganglion cells （RGCs） in vitro,expression of growth associated protein 43,and expression of microtubule-associated protein 2 mRNA expression were significantly increased.In contrast,RhoA/Rock protein content was significantly reduced by G-CSF treatment.These results indicate that G-CSF promotes the growth of processes in RGCs and increases the expression of growth-associated protein 43 and microtubule-associated protein 2 mRNA by inhibiting the RhoA/Rock pathway,thereby benefiting axonal repair in RGCs exposed to hypoxia.展开更多
目的探讨偏侧帕金森病(Parkinson s disease,PD)猴模型纹状体高分子量微管相关蛋白-2(HMWMAP-2)表达的变化。方法对4只恒河猴经单侧颈内动脉注射1-甲基4-苯基1,2,3,6-四氢吡啶(MPTP)制备成偏侧PD猴模型后,应用免疫组化染色方法,观察4只...目的探讨偏侧帕金森病(Parkinson s disease,PD)猴模型纹状体高分子量微管相关蛋白-2(HMWMAP-2)表达的变化。方法对4只恒河猴经单侧颈内动脉注射1-甲基4-苯基1,2,3,6-四氢吡啶(MPTP)制备成偏侧PD猴模型后,应用免疫组化染色方法,观察4只偏侧PD猴模型和2只正常猴纹状体HMWMAP-2表达的变化。结果偏侧PD模型猴MPTP毁损侧的纹状体的HMWMAP-2免疫活性较毁损侧对侧和正常对照猴明显降低,但MPTP毁损侧对侧的纹状体的HMWMAP-2免疫活性未发现明显变化。结论偏侧PD猴模型纹状体的HMWMAP-2表达减少可能对纹状体神经元的变性和死亡起重要作用。展开更多
文摘The present study was designed to determine microtubule-associated protein-2 and synaptophysin expression in the hippocampal CA3 region in a rat model of middle cerebral artery occlusion. The rats were treated with acupuncture at Baihui （GV 20）, Qubin （GB 7）, and Qianding （GV 21） points, in addition to exercise training. Results were compared with rats undergoing exercise training only. The Y-maze method and immunohistochemistry revealed decreased error frequency of passing through Y-maze, as well as significantly increased microtubule-associated protein-2 and synaptophysin expression, in the acupuncture with exercise training group compared with the model and exercise training groups after 5 weeks. Microtubule-associated protein-2 and synaptophysin expressions negatively correlated with error frequency of passing through the Y-maze. These results suggested that acupuncture combined with exercise training improved learning and memory functions in a rat model of cerebral infarction. The mechanisms of action were hypothesized to be associated with dendritic or synaptic plasticity in the ipsilateral hippocampal CA3 region.
文摘Following granulocyte colony-stimulating factor （G-CSF） treatment,the growth of processes in cul-tured rat retinal ganglion cells （RGCs） in vitro,expression of growth associated protein 43,and expression of microtubule-associated protein 2 mRNA expression were significantly increased.In contrast,RhoA/Rock protein content was significantly reduced by G-CSF treatment.These results indicate that G-CSF promotes the growth of processes in RGCs and increases the expression of growth-associated protein 43 and microtubule-associated protein 2 mRNA by inhibiting the RhoA/Rock pathway,thereby benefiting axonal repair in RGCs exposed to hypoxia.
文摘目的探讨偏侧帕金森病(Parkinson s disease,PD)猴模型纹状体高分子量微管相关蛋白-2(HMWMAP-2)表达的变化。方法对4只恒河猴经单侧颈内动脉注射1-甲基4-苯基1,2,3,6-四氢吡啶(MPTP)制备成偏侧PD猴模型后,应用免疫组化染色方法,观察4只偏侧PD猴模型和2只正常猴纹状体HMWMAP-2表达的变化。结果偏侧PD模型猴MPTP毁损侧的纹状体的HMWMAP-2免疫活性较毁损侧对侧和正常对照猴明显降低,但MPTP毁损侧对侧的纹状体的HMWMAP-2免疫活性未发现明显变化。结论偏侧PD猴模型纹状体的HMWMAP-2表达减少可能对纹状体神经元的变性和死亡起重要作用。
