"双固一通"法对帕金森病模型大鼠神经干细胞增殖及分化的影响

目的：探讨针刺治疗帕金森病（PD）的作用机制。方法：Wistar大鼠50只,随机分为正常对照组、假手术对照组、模型组、风府太冲组和“双固一通”组5组,以6-羟基多巴胺右侧纹状体微量注射法制备偏侧PD大鼠旋转模型,对比观察单纯针刺“风府”“太冲”和“双固一通”取穴法对PD模型大鼠神经干细胞增殖及分化的影响。采用免疫组织化学方法观察各组黑质、纹状体细胞增殖情况及神经干细胞数量变化,以免疫组织化学双标记法观测各组神经干细胞转化为神经元的数量。结果：两针刺组损毁侧黑质、纹状体增殖细胞显著增多（P〈0．01）,但只有“双固一通”组损毁侧黑质、纹状体神经干细胞及转化的神经元数量显著增加（P〈0．01）。结论：初步提示“双固一通”法能引起PD模型大鼠黑质和纹状体区神经干细胞发生明显增殖,并促使其向神经元方向分化。

Effects of Shuanggu Yitong needling method on proliferation and differentiation of nerve stem cells in the Parkinson's disease model rat

OBJECTIVE: To explore the mechanism of acupuncture in treatment of Parkinson's disease. METHODS: Fifty Wistar rats were randomly divided into a normal control group, a sham-operation control group, a model group, a Fengfu-Taichong group and a Shuanggu Yitong group. The hemilateral rotation Parkinson's disease model was prepared by micro-injection of 6-hydroxyl-dopamine into the right striatum. Effects of acupuncture at "Fengfu" (GV 16), "Taichong" (LR 3) hy Shoanggu Yitong needling method on proliferation and differentiation of nerve stem cells in the Parkinson's disease model rat were compared. Proliferation and numher changes of the nerve stem cells in the suhstantia nigra and the striatum were investigated with immunohistochemical method, and the number of nerve stem cells transforming neurons were observed with immunohistochemical double-labeling method. RESULTS: In the two acupuncture groups, the proliferative cells in the substantia nigra and thestriatum of the destroyed side increased significantly (P < 0.01), and the number of nerve stem cells and the number of transformed neurons in the destroyed side of the substantia nigra and the striatum increased significantly only in the Shuanggu Yitong group (P < 0.01). CONCLUSION: Shuanggu Yitong needling method can induce proliferation and differentiation of nerve stem cells in the substantia nigra and the striatum regions in the Parkinson's disease model rat.