Conclusions The DNA breakage level is low both for young and senescent cell.

结论年轻与老龄细胞DNA单链断裂水平均较低。

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So the basic function of AMPK is to keep the minimal level of cellular ATP and protect the cell from apoptosis induced by low concertration of ATP.

由此可见，AMPK的基本作用是维持细胞内基本的ATP水平、防止细胞由于ATP水平过低而发生细胞凋亡。

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The activation level is higher in low differentiation cell than that in high differentiation cell.

但激活状态与细胞的分化程度有关，细胞分化程度低者通路的激活水平较高。

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