应用大脑中动脉线栓法建立脑缺血再灌注损伤模型,应用免疫组化、免疫印迹法和Tunel法分别检测海马神经元内细胞周期素(cyclin)D 1的表达和细胞凋亡。结果:再灌注48 h后海马cyclin D 1表达升高,凋亡细胞增多;针刺后cyclin D 1表达和凋亡细胞明显减少(P<0.01)。认为针刺对脑缺血再灌注损伤有保护作用,其机制可能与调控细胞周期因子从而抑制凋亡有关。
Objective To observe the impacts of acupuncture on cell-cycl ODK4） and neuronal death in hippocampal neurons in rats with focal cerebra e-related factors （cyclin D1, schemic reperfusion injury Methods Middle cerebral artery occlusion （MCAO） was used to establish the model of cerebral ischemic reperfusion injury. Western blot （WB） and flow cytometry （FCM） were applied to the tests of cell-cycle-related factors and apoptosis respectively. Results In 48 h of reperfusion, the expressions of cell-cycle-related factors （cyclin D1, CDK4） in hippocampal neurons and apoptosis were increased. In acupuncture group, the expressions of cyclin DI and CDK4 and apoptosis were reduced remarkably （P 〈 0.01 ）. Conclusion Acupuncture plays the protective role in cerebral ischemic reperfusion injury, which is contributed probably to the modulation of cell-cycle-related factors to inhibit apoptosis.
