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Can Compounds in Young Blood Fix Aging?

• http://www.technologyreview.com, By Susan Young
 Researchers and investors are already dreaming up ways to devise medical treatments based on the near-fantastical findings that the blood of young mice can rejuvenate older mice. In some cases, a single protein found circulating in the blood is sufficient to restore muscle tissue and improve brain activity. 
 
The excitement is spurred by three newly published studies that showed that components of blood from young mice were able to repair damage and improve the function of the muscles and brains of older mice. Previous work from one of the research teams involved has also shown that a specific component of young blood can repair the damaged hearts of older mice.
 
“We started this work more than a decade ago, with a kind-of crazy hypothesis that there might be something in the blood that influences tissue repair with age,” says Amy Wagers, a researcher at the Harvard Stem Cell Institute, who is a coauthor on two of the three new works.

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