What makes us age? Ticking of cellular clock promotes seismic changes in chromatin landscape associated with aging
Like cats, human cells have a finite number of lives: once they divide a certain number of times (thankfully, more than nine) they change shape, slow their pace, and eventually stop dividing -- a phenomenon called "cellular senescence." Biologists know that a cellular clock composed of structures at the chromosome end known as telomeres records how many "lives" a cell has expended. Up to now ...
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Orignal From: What makes us age? Ticking of cellular clock promotes seismic changes in chromatin landscape associated with aging
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