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蜂胶总黄酮对全脑缺血-再灌注损伤大鼠脑组织病理学及细胞凋亡的影响 被引量:6

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摘要 目的:研究蜂胶总黄酮(total flavonoids of propolis,TFP)对全脑缺血-再灌注大鼠神经元损伤的保护作用,并初步探讨其作用机制。方法:采用四血管阻断法制备大鼠全脑缺血-再灌注模型。HE染色法观察神经胶质细胞病理学变化;TUNEL法检测海马CA1区神经细胞凋亡情况;免疫组织化学法检测BCL-2、BAX蛋白的表达,并计算BCL-2/BAX比值。结果:与假手术组比较,模型组大鼠大脑皮层内神经细胞凋亡数目和BAX、BCL-2蛋白表达均显著增高,BCL-2/BAX显著降低(P<0.01);与模型组比较,TFP能显著改善缺血-再灌注大鼠脑组织病理改变,减少神经细胞凋亡数目,上调BCL-2蛋白,下调BAX蛋白,提高BCL-2/BAX比值(P<0.01),其作用具有浓度依赖性。结论:TFP对全脑缺血-再灌注大鼠脑组织损伤具有良好的保护作用,其作用机制可能与减少大脑皮层神经细胞凋亡,调节与凋亡有关的调控因子的蛋白表达有关。
出处 《中药材》 CAS CSCD 北大核心 2015年第7期1488-1492,共5页 Journal of Chinese Medicinal Materials
基金 安徽省高等学校省级优秀青年人才基金项目(2012SQRL273) 2012年安徽省高等学校省级质量工程项目(2012zy408)
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