Drug perks up old muscles and aging brains

We age, in part, because the adult stem cells in our tissues are surrounded by chemicals that prevent them from replacing damaged cells. One of these chemicals is TGF-beta1, known to depress stem cell activity. A new study shows that a drug that blocks TGF-beta1, which is now being tested for its anticancer properties, makes brain and muscle tissue more youthful. This is a step toward a drug cocktail that could rejuvenate aging tissue. —> Read More