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衰老(aging)是生命运动的自然过程,存在于任何生命体的任何时期,只是不同情况下其速率与程度有所区别。对衰老这一重大课题的了解目前仍限于一些初步实验和学说,其中以氧自由基和细胞凋亡等学说影响较深远。近年来,大量研究证明:自由基尤其是活性氧自由基是参与调节细胞凋亡的重要因素之一,而有人认为衰老细胞的死亡实质上就是细胞凋亡〔1〕。探讨研究自由基、细胞凋亡与衰老的相关性,具有重要的理论及实际意义。

第1个回答  2006-09-13
The decrepitude(aging) is the natural process of life sport, existing in any any period of life body, just under different circumstance its velocity and the degree have differentiation.Still be limited by some initial experiments and theory currently to the understanding of decrepitude this important topic, influence by theories, such as oxygen free radicals and cell 凋亡 ...etc. among them more profound.In recent years, a great deal of research certificate:Free radicals' ising a particularly live oxygen free radicals is one of the important factors which participates to regulate cell 凋 亡 , but someone think the death of decrepitude cell is a cell 凋 substantially 亡 [1].Inquiry into a research free radicals, the cell 凋亡 and the relativity of decrepitude, have important theories and actual meaning.

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第2个回答  2006-09-13
The decrepitude is the natural process of life sport, existing in any any period of life body, just under different circumstance its velocity and the degree have differentiation.Still be limited by some initial experiments and theory currently to the understanding of decrepitude this important topic, influence by theories, such as oxygen free radicals and cell etc. among them more profound.In recent years, a great deal of research certificate:Free radicals' ising a particularly live oxygen free radicals is one of the important factors which participates to regulate cell , but someone think the death of decrepitude cell is a cell substantially 亡 [1].Inquiry into a research free radicals, the cell and the relativity of decrepitude, have important theories and actual meaning.

参考资料:http://fy.iciba.com/trans.php

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