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EPO对缺氧缺血性脑损伤新生大鼠脑组织TERT及BCL-2表达的影响 被引量:2

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摘要 目的:本研究旨在在观察促红细胞生成素(EPO)对缺氧缺血性脑损伤新生大鼠脑组织TERT及Bcl-2表达的影响,探讨EPO对新生大鼠缺氧缺血性脑损伤(HIBD)的保护作用及可能机制。方法:采用单侧颈总动脉结扎后给予低浓度氧制备缺氧缺血性脑损伤动物模型。Wistar新生大鼠90只,随机选取对30只仔鼠作为对照组,剩余60只制作HIBD模型,随机分为HIBD组和EPO组。其中EPO组大鼠在缺氧缺血后立即腹腔内注射EPO5000u/kg,HIBD组给予等容积生理盐水。对造模后即刻、6h、12h、24h、72h各组大鼠每组选6只取脑组织检测TERT及Bcl-2表达情况。结果:对照组可见各时间点脑组织中Bcl-2有极少量的表达;HIBD组在脑组织中TERT于造模后6h开始增加,12h升高明显,24高峰,72h开始下降,各个时间点均高于对照组(P<0.05)。EPO组中TERT蛋白的表达规律与HIBD组相似,在12h和24h时表达量高于HIBD组(P<0.05)。HIBD组大鼠缺氧缺血后6h Bcl-2表达开始增多,1 2h达高峰,以后逐渐减少,各个时间点均高于对照组(P<0.05);EPO组Bcl-2表达规律与HIBD组相似,在24h时表达量高于HIBD组(P<0.05)。结论:EPO对新生大鼠缺氧缺血性脑损伤脑组织有保护性作用,此作用可能与其调节TERT及Bcl-2表达水平有关。
出处 《黑龙江医药科学》 2013年第3期77-79,共3页 Heilongjiang Medicine and Pharmacy
基金 佳木斯大学研究生课题 编号:2011810214
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