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Model sheds new light on sports-related brain injuries
Date:4/29/2014

A new study has provided insight into the behavioral damage caused by repeated blows to the head. The research provides a foundation for scientists to better understand and potentially develop new ways to detect and prevent the repetitive sports injuries that can lead to the condition known as chronic traumatic encephalopathy (CTE).

The research which appears online this week in the Journal of Neurotrauma shows that mice with mild, repetitive traumatic brain injury (TBI) develop many of the same behavioral problems, such as difficultly sleeping, memory problems, depression, judgment and risk-taking issues, that have been associated with the condition in humans.

One of the barriers to potential treatments for TBI and CTE is that no model of the disease exists. Animal equivalents of human diseases are a critical early-stage tool in the scientific process of understanding a condition, developing new ways to diagnose it, and evaluating experimental therapies.

"This new model captures both the clinical aspects of repetitive mild TBI and CTE," said Anthony L. Petraglia, M.D., a neurosurgeon with the University of Rochester School of Medicine and Dentistry and lead author of the study. "While public awareness of the long-term health risk of blows to the head is growing rapidly, our ability to scientifically study the fundamental neurological impact of mild brain injuries has lagged."

There has been a great deal of discussion in recent years regarding concussions as a result of blows to the head in sports. An estimated 3.8 million sports-related concussions occur every year. Mild traumatic brain injury is also becoming more common in military personnel deployed in combat zones. Over time, the frequency and degree of these injuries can lead short and long-term neurological impairment and, in extreme examples, to CTE, a form of degenerative brain disease.

The experiments described in the study were designe
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Contact: Mark Michaud
mark_michaud@urmc.rochester.edu
585-273-4790
University of Rochester Medical Center
Source:Eurekalert

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