Report: Scientists link ALS, athlete head injuries

NEW YORK (AP) — Scientists have found evidence connecting head injuries in athletes to Lou Gehrig's disease, according to a report to air on HBO's "Real Sports" on tonight.

Dr. Ann McKee said in an interview with the television magazine show that she found toxic proteins in the spinal cords of three athletes who had suffered head injuries and then later died of Lou Gehrig's disease, or ALS.

Those same proteins have been found in the brains of athletes with chronic traumatic encephalopathy (CTE), a disease linked to head injuries that causes cognitive decline, abnormal behavior and dementia.

The findings are to be published in the Journal of Neuropathology and Experimental Neurology.

McKee, a neurology professor at Boston University who has studied CTE in athletes, noticed that an unusually high number of football players seemed to be affected by ALS. The disease attacks nerve cells in the brain and spinal cord, and destroys the ability to move and speak.