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Looking for a link between seizures and migraine after traumatic brain injury in soldiers
Date:10/12/2011

SALT LAKE CITYTraumatic brain injury (TBI) affects many Americans: high school athletes, drivers and passengers in motor vehicle accidents, and victims of domestic violence, to name a few. Some of the most striking effects of brain injury are seen in our soldiers and veterans returning from Iraq and Afghanistan. Two University of Utah researchers are teaming up with the Department of Defense to investigate the long-term effects of TBI in these returning soldiers. K.C. Brennan, M.D., assistant professor in the Department of Neurology, and Edward Dudek, Ph.D., professor and chair of the Department of Physiology, are collaborating on the study.

"Because of advances in protective equipment and armor, more and more of our service personnel are surviving their initial injuries," says Brennan, the study's lead investigator. "However, the long-term consequences of TBI can leave our returning servicemen and women completely incapacitated. Post-traumatic epilepsy (PTE) and post-traumatic headache (PTH) are two of these consequences, and they are probably related: both likely result from increased excitation in the brain."

In PTE, the excitation of the brain results in a seizure, while in PTH, it can cause cortical spreading depression (CSD), an event that can trigger a severe migraine-like headache, according to Dudek. "The fact that many service personnel suffer from both of these conditions at the same time offers a clue that both PTE and PTH may have a common origin in TBI," he says. "Evidence from intensive care units suggests that this is the case: patients after TBI suffer from both seizures and CSD, and these two events seem to interact with one another."

The study funded by the Department of Defense will provide $725,000 over three years to investigate seizures and CSD together to better understand how TBI can set PTE and PTH in motion. The Utah researchers hope understanding this will allow them to develop better treatments for service
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Contact: Dennis Jolley
dennis.jolley@hsc.utah.edu
801-585-7777
University of Utah Health Sciences
Source:Eurekalert

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