| No end to telomeres: a glancing review of recent literatureTelomeres shorten with every cell division, essentially providing a “clock” that ticks down until reaching some critical length, at which point the cell will undergo the permanent growth arrest known as senescence; senescent cells themselves contribute both directly and indirectly to aging. Telomere length is also a useful biomarker: it is positively correlated with life expectancy, and appears to respond to environmental influences including chronic infection and psychological stress. |
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looking forward to it