Scientists on the hunt for anti-aging drugs say they've made an advance with tantalizing potential: Two experimental drugs appear to safely boost the immune systems of elderly humans. The researchers stress that more research is needed to confirm the findings and show the drugs are safe. And at least one researcher says the findings are based on a relatively small number of people and used methods that could produce misleading results. Still, many researchers say the findings are encouraging. "I think the results are quite exciting," says Felipe Sierra , director of the division of aging biology at the National Institute on Aging. For the study, researchers tested very low doses of two drugs. One, called RAD001, is used to fight cancer and...
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Experimental Drugs Boost Elderly Immune Systems, Raising Hopes For Anti-Aging Effects