What's Happening?
Researchers have developed a new biological clock based on gene activity that accurately predicts lifespan and captures hallmarks of chronic disease. This transcriptomic clock analyzes RNA molecules to determine which genes are active, providing a signature
of aging. The study involved data from four species—mice, rats, macaques, and humans—and compared aging processes across species and body parts. The clock was shown to assess biological aging and mortality risk, predicting time to death as effectively as existing epigenetic clocks. It also identified contributors to aging, such as chronic disease, in animal models and human tissue samples.
Why It's Important?
The development of this new biological clock offers a promising tool for understanding and potentially intervening in the aging process. By providing insights into molecular aging, the clock could help researchers test the effects of lifestyle changes or drugs on biological aging. This tool may facilitate early assessments of interventions, aiding in the development of treatments for age-related diseases. The study's findings on conserved genetic markers across species suggest potential universal mechanisms of aging, which could inform future research and therapeutic strategies.
