背景与目的:研究Bid在维生素E琥珀酸酯(vitamin E succinate,VES)诱导人胃癌SGC-7901细胞凋亡中的作用。材料与方法:在VES诱导SGC-7901细胞凋亡过程中,检测Bid蛋白的活化;用RNA瞬时干扰阻断Bid的表达,再用VES作用SGC-790细胞后,比较Bid...背景与目的:研究Bid在维生素E琥珀酸酯(vitamin E succinate,VES)诱导人胃癌SGC-7901细胞凋亡中的作用。材料与方法:在VES诱导SGC-7901细胞凋亡过程中,检测Bid蛋白的活化;用RNA瞬时干扰阻断Bid的表达,再用VES作用SGC-790细胞后,比较Bid阴性表达和Bid阳性表达细胞的凋亡率、线粒体膜电位(ΔΨm)、胞浆中细胞色素C含量和PARP活化程度。结果:VES作用细胞后Bid发生活化;Bid阴性表达细胞的凋亡率较Bid阳性表达细胞降低,线粒体膜电位升高,胞浆中细胞色素C含量减少,PARP活化减弱。结论:在VES诱导SGC-7901细胞凋亡过程中,Bid可能发挥重要作用。展开更多
Thoreau expresses his love for nature and criticism of materialism in Walden,emphasizing the harmonious relationship between nature and human beings.Besides this significance,rhetorical devices like simile,metaphor,pe...Thoreau expresses his love for nature and criticism of materialism in Walden,emphasizing the harmonious relationship between nature and human beings.Besides this significance,rhetorical devices like simile,metaphor,personification,parallelism,overstatement,irony and pun contribute to unique charm of this masterpiece's language and thoughts.展开更多
文摘背景与目的:研究Bid在维生素E琥珀酸酯(vitamin E succinate,VES)诱导人胃癌SGC-7901细胞凋亡中的作用。材料与方法:在VES诱导SGC-7901细胞凋亡过程中,检测Bid蛋白的活化;用RNA瞬时干扰阻断Bid的表达,再用VES作用SGC-790细胞后,比较Bid阴性表达和Bid阳性表达细胞的凋亡率、线粒体膜电位(ΔΨm)、胞浆中细胞色素C含量和PARP活化程度。结果:VES作用细胞后Bid发生活化;Bid阴性表达细胞的凋亡率较Bid阳性表达细胞降低,线粒体膜电位升高,胞浆中细胞色素C含量减少,PARP活化减弱。结论:在VES诱导SGC-7901细胞凋亡过程中,Bid可能发挥重要作用。
文摘Thoreau expresses his love for nature and criticism of materialism in Walden,emphasizing the harmonious relationship between nature and human beings.Besides this significance,rhetorical devices like simile,metaphor,personification,parallelism,overstatement,irony and pun contribute to unique charm of this masterpiece's language and thoughts.