How tangled proteins kill brain cells, promote Alzheimer’s, CTE

Look deep inside the brain of someone with Alzheimer’s disease, most forms of dementia or the concussion-related syndrome known as chronic traumatic encephalopathy (CTE) and you’ll find a common suspected culprit: stringy, hairball-like tangles of a protein called tau. Such conditions, collectively known as “tauopathies” strike scores of people across the globe, with Alzheimer’s alone…