Genes become erratic in old age

2019-03-02 11:09:00

SMOOTH and clear when you’re young, then rough and patchy as you grow old. It’s not your skin, it’s the expression of your genes. We already know that cells age at different rates, but now for the first time geneticists have found that gene expression also becomes more variable with age. Mehmet Somel at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, and colleagues measured gene activity in tissues of different ages in humans and rats. They found that variation in gene expression increases as we age, and is widespread throughout the body,