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Selective Mechanisms and the DNA Inujry Hypothesis of Cell Senescence
Author(s): 
Pages: 81-87
Year: Issue:  2
Journal: ACTA LASER BILOGY SINICA

Keyword:  筛选机制细胞衰老DNA损伤凋亡;
Abstract: Selective mechanisms exist in organism and biosphere, which select the cells with less DNA injury and reproduces them.There are two mo dels:Mechanisms 1 and Mechanisms 2,represented respectively by bacteria and mech anolytes of human beings.Cells with Mechanisms 1(e.g. bacteria,generator cells, cancer cells)can reproduce infinitely,while somatic cells can not.There are deep -going reasons behind the two categories of selective mechanisms.The canceratio n of the cells is a degenerating process from Mechanisms 2 to Mechanisms 1.
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