山东大学学报(医学版) ›› 2015, Vol. 53 ›› Issue (3): 1-5.doi: 10.6040/j.issn.1671-7554.0.2014.943
• 基础医学 • 下一篇
范少华1, 张轶超2, 袁晓东2, 毕景雯1, 张一辰2, 李云2
FAN Shaohua1, ZHANG Yichao2, YUAN Xiaodong2, BI Jingwen1, ZHANG Yichen2, LI Yun2
摘要: 目的 研究全脑缺血再灌注损伤大鼠海马信号转导和转录激活因子3(stat3)及大脑皮层MiR210的表达变化, 探讨MiR210及stat3与缺氧诱导因子-1α(HIF-1α)之间的相关性及调节机制。方法 将66只SD大鼠随机分为假手术组、全脑缺血组(GI组)及stattic+全脑缺血组(stattic+GI组)。采用改良四血管阻断法制备大鼠全脑缺血模型, 免疫印迹法检测海马stat3、p-stat3及HIF-1α蛋白的表达, 实时定量PCR法检测大脑皮层MiR210及HIF-1α mRNA的变化。结果 与假手术组相比, GI组海马stat3、p-stat3及HIF-1α蛋白表达均明显增加(P<0.05), 大脑皮层MiR210及HIF-1α mRNA表达亦明显增加(P<0.05);与GI组相比, stattic+GI组海马p-stat3及HIF-1α蛋白表达均明显减少(P<0.05), 而stat3蛋白变化不明显(P>0.05);大脑皮层HIF-1α mRNA水平明显减少(P<0.05)。结论 全脑缺血再灌注损伤后, MiR210及stat3表达发生明显变化, 且两者与HIF-1α之间可能存在调控关系。
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