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A clue to brain disorder – before death
San Francisco Chronicle

For the first time, scientists think they have detected in living patients a protein that accumulates in the brains of people suffering from chronic traumatic encephalopathy, a neurodegenerative disorder tied to repeated brain injuries that afflicts football players and military veterans. Doctors have only been able to diagnose CTE during autopsies based on the presence of a protein called tau, but UCLA researchers write in a paper published Tuesday that they believe they have identified tau in five living former NFL players.

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