Which is a good thing. The bad thing is that reaching the limit is one of the markers of oldage.
不利之处则是,细胞到达复制次数的极限是老化的标志之一。
You do not want it to happen too quickly, particularly in tissues that have to do a lot ofdividing in order to work properly, such as those in the immune system.
人们不想让这个过程发生的太快,尤其对于那些需要不断分裂才能够得以正常运作的组织而言,例如免疫系统组织。
It has been known for some time that chronic stress causes premature shortening of the telomeres.
人们已经得知,长期的压力可以使端粒的缩短提前发生。
What has not been clear is whether this is a one-way trip, with each stressful period turningthe telomeric ratchet irreversibly.
然而人们对于该过程是否单向进行尚不明确。
This week, though, at a meeting of the American Association for Cancer Research in Orlando,Florida, a group of researchers led by Edward Nelson of the University of California, Irvine,showed that it isn t.
然而,本周在美国癌症研究学会于佛罗里达州奥兰多召开的会议上,加州大学尔文分校由爱德华?尼尔森领导的研究团队发现,这一过程是可逆的。
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