摘要:目的:观察γ射线照射对Slug敲除C57BL/6小鼠肠粘膜上皮细胞损伤的影响及机制。方法:Slug敲除C57BL/6小鼠和非Slug敲除C57BL/6小鼠各12只,以8Gy 60Coγ射线全身一次性照射制作动物模型,分别在照射后第1、3、8天处死小鼠,取小肠组织4%多聚甲醛液固定作病理学检查;取非Slug基因敲除小鼠和Slug基因敲除小鼠各24只,予以8Gy 60Coγ射线全身一次性照射,分别在照射后第2、4和24 h处死,采用免疫组化法检测肠道细胞PUMA表达,TUNEL染色检测细胞凋亡。结果:8Gy 60Coγ射线照射后,Slug基因敲除小鼠死亡率91.67%,明显高于非基因敲除小鼠的25.00%,差异有统计学意义(P=0.004)。Slug敲除小鼠肠道细胞凋亡指数、PUMA阳性表达细胞数以及肠道损伤的严重程度均明显高于非敲除组。结论:Slug基因敲除加重γ射线引起的放射性肠道损伤。
注:因版权方要求,不能公开全文,如需全文,请咨询杂志社
热门期刊服务
Journal of Systems Science and Systems Engineering Journal of Systems Science and Complexity Rare Metals Science China Technological Sciences Chinese Annals of Mathematics,Series B Biomedical and Environmental Sciences Journal of Environmental Sciences Transactions of Nonferrous Metals Society of China Chinese Annals of Mathematics Series B Journal of Systems Engineering and Electronics Plasma Science and Technology Journal of Materials Science Technology