New clues emerge for how gene activity changes with age
| Date: December 24, 2008 |
New evidence may explain why it is that we lose not only our youthful looks, but also our youthful pattern of gene activity with age. A report in the journal Cell by researchers at Harvard Medical School, The Jackson Laboratory and other institutions reveals that a protein perhaps best known for its role in the life-extending benefits of a low-calorie diet also maintains the stability of the mammalian genome--the complete set of genetic instructions "written" in DNA.
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