Elevated levels of two proteins - beta-amyloid, which forms plaques in the brain, and tau - in combination with cognitive impairment have previously formed the basis for diagnosing Alzheimer s.
Son took mum on 18 month trip across the world after Alzheimer's diagnosis, says her condition improved yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.