期刊文献+

高频电刺激丘脑底核对黑质神经元保护作用的研究

Neuroprotective effects of high frequency stimulation of the subthalamic nucleus on the substantia nigra neurons
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摘要 目的探讨高频电刺激丘脑底核对帕金森病(PD)大鼠黑质致密部(SNc)神经元的保护作用及机制。方法将40只SD大鼠随机分为3组,正常对照组10只,模型组及刺激组各15只。模型组及刺激组大鼠于脑内侧前脑束注射6-羟基多巴胺(6-OHDA)制备大鼠偏侧PD模型,刺激组大鼠丘脑底核区植入刺激电极实施高频电刺激(130Hz),对三组动物的行为学、SNc神经元的形态学改变进行观察和分析。结果术后2、4周时,刺激组SNc神经元凋亡的阳性率分别为(39.98±12.11)%和(41.12±9.23)%,模型组则为(61.74±7.82)%和(67.12±10.23)%;两组比较,差异有统计学意义(P<0.05)。术后2、4周时,刺激组Bcl-2/Bax比值为0.84±1.01和0.88±0.81,模型组则为0.39±0.15和0.30±0.58;两组比较,差异有统计学意义(P<0.05)。结论高频刺激丘脑底核对PD大鼠黑质SNc神经元有保护作用,其机制可能与改变了SNc区神经递质的分布和代谢有关。 Objective To investigate the neuroprotective effects of high frequency stimulation of the subthalamic nucleus(HFS-STN) on the substantia nigra pars compacta(SNc) neurons.Methods Forty Sprague-Dawley rats were randomly divided into 3 groups:control group with 10,model group with 15 and stimulation group with 15.To establish the rat models for Parkinson disease(PD),6-hydroxydopamine(6-OHDA) was unilaterally microinjected into the right medial forebrain bundle(MFB) of rats in model group and stimulation group....
出处 《中国微侵袭神经外科杂志》 CAS 2008年第11期508-510,共3页 Chinese Journal of Minimally Invasive Neurosurgery
基金 中国博士后科学基金课题(编号:20070420399)
关键词 帕金森病 细胞凋亡 高频电刺激 Parkinson disease apoptosis high frequency stimulation
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参考文献9

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