重组人促红细胞生成素对大鼠急性脑缺血脑组织中肿瘤坏死因子-α基质金属蛋白酶-9和血管生成素-2表达的影响

被引：5

作者：

严澎 ^{[1
]}

郭军红 ^{[2
]}

机构：

[1] 山西医科大学研究生院

[2] 山西医科大学第一医院神经内科

来源：

中国药物与临床 | 2011年 / 11卷 / 01期

关键词：

脑缺血; 红细胞生成素; 明胶酶B; 血管生成素2; 肿瘤坏死因子α;

D O I：

暂无

中图分类号：

R743.3 [急性脑血管疾病（中风）];

学科分类号：

摘要：

目的探讨重组人促红细胞生成素(rhEPO)对大鼠急性局灶性脑缺血损伤的神经保护作用及其机制。方法健康雄性SD大鼠54只随机分为假手术组、模型组和rhEPO治疗组。采用线栓法制作大鼠永久性局灶性脑缺血(pMCAO)模型。rhEPO治疗组在缺血2h后腹腔注射rhEPO4000U/kg,模型组和假手术组在等时间点给予等量的生理盐水。缺血24h后断头取脑分别用干湿质量法计算脑组织含水量,2,3,5-氯化三苯基四氮唑(TTC)法测量脑梗死体积,免疫组织化学方法测定肿瘤坏死因子-α(TNF-α)、基质金属蛋白酶-9(MMP-9)、血管生成素-2(Ang-2)的表达。结果 rhEPO治疗组与模型组相比,脑组织含水量减少,脑梗死体积减小,TNF-α和MMP-9的表达降低,而Ang-2的表达较模型组升高(P<0.05)。结论 rhEPO对大鼠急性脑缺血有一定的神经保护作用,其机制可能是通过降低TNF-α、MMP-9的活性和促进Ang-2的表达来实现的。

引用

页码：8 / 11+121 +121

页数：5

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