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利用Ｎｏｒｔｈｅｒｅｎｂｌｏｔ观察不同年龄大鼠经亚砷酸钠预处理１２ｈ后ＨＳＰ７０基因转录改变。结果发现亚砷酸钠能诱导ＨＳＰ７０的表达，亚砷酸钠组明显高于生理盐水组，随着年龄的增加，ＨＳＰ７０转录逐渐减少。提示老年机体对环境适应能力下降
The changes of HSP70 gene transcription in rats of different ages pretreated with sodium arsenite at 12h were observed by using Northerenblot. The results showed that arsenite can induce the expression of HSP70, arsenic trioxide group was significantly higher than the saline group, with increasing age, HSP70 transcription decreased. Tip elderly body to adapt to the environment decreased