For this study the team evaluated the brains of athletes aged 17 and 18 years who had died within a day to four months due to some or other form of sport-related head injury and also had a previous history of playing football. The athletes died 1, 2, 10 and 128 days, respectively, after sustaining their injuries.
Researchers said the key to reducing risk of CTE is reducing the number of head impacts to athletes and soldiers.
One brain was found to have early-stage CTE, and two others showed abnormal accumulation of the tau protein associated with the disease. Within 24 hours of the head injury and death due to the injury, the scientists could detect the changes in the brain that could indicate CTE. "These results were surprising and alarming", says Dr.
It's "an important study that presents a new hypothesis which, if true, would have implications for public health", said Steven Atlas, MD, MPH, a primary care physician and associate professor of medicine at Harvard Medical School who is a contributor to HealthNewsReview.org.More news: Watching the Tape Move -0.42% for Costain Group Plc (COST.L)
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Perhaps they relied too heavily on the framing of a University of Oxford news release about the study headlined, "Blows not concussion cause brain disease, according to new research". The head impacts consistently triggered in mice markers of CTE, like leaky blood vessels, changes in electric functions and the buildup of tau proteins.
Some of the hits that cause CTE may result in concussion, Goldstein said. "Head impacts can trigger CTE with no concussion at all", says Goldstein.
"Is that the cause for CTE?" Researcher found they did not show signs of CTE. "We can not overstate the absurdity of allowing 7-year-olds to receive 500 head impacts a season just because they happen to be getting exercise at the time".
Yet most news outlets reporting on this story - including CNN's health desk, whose piece was headlined, "It's not concussions that cause CTE. I ran a company because of football", Buoniconti said. "You don't have to be concussed to get Chronic Traumatic Encephalopathy and vice versa", said Dr. William Moss of the Lawrence Livermore Lab.
Goldstein says the goal moving forward is to develop new diagnostics, therapeutics, protective equipment and preventive measures to hell those affected by head injuries.