电刺激小脑顶核促脑缺血后血管内皮生长因子表达的意义The role of fastigial nuclei stimulation on vascular endothelial growth factor expression in rats with local cerebral ischemia
关永林,石正洪,郑祖根
摘要(Abstract):
探讨电刺激小脑顶核 ( FNS)对局部脑缺血后血管内皮生长因子 ( VEGF)表达和毛细血管新生的影响 .以线栓法制成大鼠右侧大脑中动脉梗塞模型 ( MCAO) ,大鼠随机分为假手术对照组、MCAO组、电刺激小脑顶核 ( MCAO+FNS)干预组 .以免疫组织化学法检测 VEGF、内皮细胞阳性表达及毛细血管记数 .大脑中动脉梗塞后 ,缺血区神经元变性、坏死 ,VEGF、内皮细胞在半暗带有少量表达 ,毛细血管数较对照组增加 ,经电刺激小脑顶核干预后 ,VEGF、内皮细胞大量表达 ,毛细血管数目明显增加 ,有统计学差异 .电刺激小脑顶核可通过促VEGF表达、内皮细胞增殖 ,从而促进毛细血管新生 .
关键词(KeyWords): 大脑中动脉梗塞;血管内皮生长因子;内皮细胞;毛细血管密度;小脑顶核;电刺激
基金项目(Foundation): 国家自然科学基金资助项目 ( 3 93 70 2 61 )
作者(Author): 关永林,石正洪,郑祖根
DOI: 10.13885/j.issn.0455-2059.2003.05.019
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