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"May 5 - A blood-based protein called GDF11 that can rejuvenate the hearts of aging mice, has a similar effect on the the mice&amp;#039;s brain and skeletal muscle function, according to scientists at Harvard University. The findings, which were published..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://uk.reuters.com/video/2014/05/05/blood-protein-rejuvenates-brain-and-musc?videoId=312835184>