Free radicals, linked to rapid aging, are highly reactive with other molecules, including vital DNA and proteins, the destruction of which can damage or kill cells.
与迅速衰老相关联的自由基很容易与包括维持生命所必需的DNA和蛋白质发生反应，而破坏这些DNA和蛋白质，就可能会损伤或杀死细胞。
DNA repair is essential for the accurate preservation of genetic information and to ensure the healthy functioning of cells, and a connection between aging and DNA damage has long been suspected.
DNA修复对遗传信息的准确保存和确保细胞的正常功能是必需的，年龄和DNA损伤的关系一直存在疑问。
The relation between mutation and DNA damage and cell aging is discussed in this paper.
对降低基因突变和DNA损伤与细胞老化的关系作了讨论。
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