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酸枣仁皂甙A对脑缺血再灌注损伤大鼠神经保护作用的研究 被引量:13

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摘要 目的:探讨酸枣仁皂甙A对脑缺血再灌注损伤大鼠神经保护作用及其作用机制。方法:96只SD大鼠被随机分为假手术组、缺血再灌注模型组、尼莫地平组和酸枣仁皂甙A组,除假手术组外其余各组分设12h、24h、48h、4d、7d五个时间组。参考Longa线栓法制备大脑中动脉闭塞再灌注损伤模型,酸枣仁皂甙A组给予酸枣仁皂甙A(20mg/kg)、尼莫地平组给予尼莫地平(1mg/kg)、模型组及假手术组给予等体积生理盐水腹腔注射。造模后按时点断头取脑组织切片行谷氨酸免疫组化及原位细胞凋亡检测。结果:造模后12h缺血脑组织中心区可见大量谷氨酸阳性细胞及凋亡神经元细胞,48h达高峰,7d后明显减少;尼莫地平及酸枣仁皂甙A组二者数量较模型组明显减少。结论:酸枣仁皂甙A能抑制脑组织谷氨酸免疫组化阳性细胞的表达、减少神经元细胞的凋亡,在脑缺血急性期具有脑保护作用。
出处 《陕西中医》 2009年第5期621-623,共3页 Shaanxi Journal of Traditional Chinese Medicine
基金 广西科技厅应用基础项目:桂科基0575085
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参考文献9

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