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外源端粒酶逆转录酶基因对老年大鼠供肝缺血再灌注损伤的影响

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摘要 目的探讨外源端粒酶逆转录酶基因对老年大鼠供肝缺血再灌注损伤的影响。方法 SD大鼠分为端粒酶催化亚基(h TERT)干预组(n=25)、空转载体组(n=5)、生理盐水组(n=25)3组,取肝前2 d自颈背给予h TERT干预组供者静脉注射1 ml 3×10^9pfu/ml携带h TERT的病毒悬液,给予空转载体组供者静脉注射1 ml 3×10^9pfu/ml空病毒悬液,给予生理盐水组供者静脉注射1 ml生理盐水。结果再灌注后3、6、12 h,1、2 d h TERT组血清谷氨酸转氨酶(ALT)水平均显著低于空转载体组和生理盐水组(P〈0.05),凋亡阳性细胞均显著少于空转载体组和生理盐水组(P〈0.05),凋亡指数也均显著低于空转载体组和生理盐水组(P〈0.05);转染1 d后h TERT组肝细胞端粒酶活性显著高于阴性对照组和阳性对照组(P〈0.05)。结论外源端粒酶逆转录酶基因能够有效防护老年大鼠供肝缺血再灌注损伤。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2016年第15期3660-3661,共2页 Chinese Journal of Gerontology
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