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Brain injury study adds to Alzheimer's enigma

CHICAGO (Reuters) - Levels of a protein linked with Alzheimer's disease rise as people recover from brain injuries -- a surprising finding that may help explain why injuries boost the risk of developing the disease, U.S. and Italian researchers said on Thursday. <p><a href="http://feeds.reuters.com/~a/Reuters/domesticNews?a=D3vasH"><img src="http://feeds.reuters.com/~a/Reuters/domesticNews?i=D3vasH" border="0"></img></a></p><div class="feedflare"> <a href="http://feeds.reuters.com/~f/Reuters/domesticNews?a=RQCQOK"><img src="http://feeds.reuters.com/~f/Reuters/domesticNews?i=RQCQOK" border="0"></img></a> <a href="http://feeds.reuters.com/~f/Reuters/domesticNews?a=ORAKgk"><img src="http://feeds.reuters.com/~f/Reuters/domesticNews?i=ORAKgk" border="0"></img></a> <a href="http://feeds.reuters.com/~f/Reuters/domesticNews?a=kvzO1k"><img src="http://feeds.reuters.com/~f/Reuters/domesticNews?i=kvzO1k" border="0"></img></a> </div><img src="http://feeds.reuters.com/~r/Reuters/domesticNews/~4/377393968" height="1" width="1"/>