In young people, telomeres are about 8,000-10,000 organic molecules, or nucleotides, long.
在年轻人体内,端粒体的长度约有8000至1万个有机分子或核苷酸连起来那么长。
'Now we have found a way to lengthen human telomeres by as much as 1,000 nucleotides, turning back the internal clock in these cells by the equivalent of many years of human life,' said Helen Blau of Stanford University.
美国斯坦福大学(Stanford University)的海伦•布劳(Helen Blau)表示:“现在,我们已经发现一种方法,能将人体的端粒体长度延长多达1000个核苷酸的长度。人们体内这些细胞的时钟能被逆转多少,人的寿命就能延长多少年。”
To make the discovery, researchers used modified messenger RNA to extend the telomeres.
为了获得这项发现,研究人员用改良后的信使核糖核酸(RNA)来延长端粒体长度。
RNA carries instructions from genes in the DNA to the cell's protein-making factories.
RNA携带来自DNA基因的指令至细胞的“蛋白质制造工厂”。
The RNA used in this experiment contained the coding sequence for TERT - the active component of a naturally occurring enzyme called telomerase.
实验中使用的RNA含有端粒酶逆转录酶(TERT)的编码序列——自然形成的酶的活性成分叫做端粒酶。
When the cells are treated, they behave as if they are younger and multiply quickly rather than dying.
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