Eliminating worn-out cells extends the healthy lives of lab mice — an indication that treatments aimed at killing off these cells, or blocking their effects, might also help to combat age-related diseases in humans.
As animals age, cells that are no longer able to divide — called senescent cells — accrue all over their bodies, releasing molecules that can harm nearby tissues. Senescent cells are linked to diseases of old age, such as kidney failure and type 2 diabetes.
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