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促红细胞生成素联合粒细胞集落刺激因子治疗大鼠急性心肌梗死 被引量:16

Effect of erythropoietin combined with granulocyte-colony stimulating factor in the treatment of acute myocardial infarction in rats
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摘要 目的研究EPO联合G-CSF对急性心肌梗死大鼠心脏结构和功能的影响,探讨其改善左室重塑和心功能的机制。方法实验动物分为5组:假手术组、急性心肌梗死组、心梗+EPO组、心梗+G-CSF组和心梗+EPO+G-CSF组。采用TUNEL染色检测心肌细胞凋亡;HE染色、Masson三色染色、天狼猩红胶原染色和Ⅷ因子染色,观察心肌梗死区和梗死周围区心肌组织存活、瘢痕形成、胶原沉积、血管新生情况。超声心动图检查评价心脏结构和心功能,血流动力学检查评价心功能。结果第7 d时所有药物干预组的LVEF和FS增高(P<0.01);LVESD和LVESV降低(P<0.01)MI-EG最为明显(P<0.01)。第28 d时所有药物干预组的LVEF和FS明显增高,LVESD、LVEDD、LVESV、LVEDV明显降低(P<0.01)MI-EG组优于单独药物治疗组(P<0.01)。第28 d时药物干预组的LVEDP降低,LVSP和+dP/dtmax增高,MI-EG组最明显(P<0.01)。MI后第1 d,MI组中即有大量的凋亡细胞,明显高于EPO组和G-CSF组,MI-EG组凋亡细胞数量最少(P<0.01)。MI后第28 d,药物治疗组梗死区和梗死周围区血管增生明显增多,纤维瘢痕形成和胶原沉积减少,MI-EG组最明显。结论 EPO联合G-CSF治疗可以明显抑制心肌细胞凋亡、减少胶原组织沉积、促进血管新生,从而达到阻止梗死后左室重塑、改善心脏收缩和舒张功能的作用。 Objective To evaluate the effects of erythropoietin (EPO) combined with granulocyte-colony stimulating factor (G-CSF) on left ventricular function and ventricular remodeling after acute myocardial infarction (AMI) and investigate the possible mechanism. Methods The experimental design consisted of 5 groups of rats, namely the sham, myocardial infarction (MI) model, MI with EPO treatment, MI with G-CSF treatment, and MI with EPO plus G-CSF treatment groups.
出处 《南方医科大学学报》 CAS CSCD 北大核心 2011年第1期17-22,共6页 Journal of Southern Medical University
基金 国家"十一五"科技支撑计划(2006BAI01A02)~~
关键词 促红细胞生成素 粒细胞集落刺激因子 细胞凋亡 急性心肌梗死 erythropoietin granulocyte-colony stimulating factor cell apoptosis acute myocardial infarction
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参考文献13

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二级参考文献15

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