Zinc supplementation shows promise in reducing cell stress after blasts

Each year, approximately 2 million traumatic brain injuries (TBIs) occur in the USA, according to the Centers for Disease Control and Prevention. That number includes troops wounded in Iraq and Afghanistan, for whom TBI is considered an invisible wound of war, one that has few successful treatments. "We have nothing beyond ibuprofen for most TBIs," said Dr. Angus Scrimgeour, who has been investigating the effects of low zinc diets on cell stress following a blast injury. "The adult brain does not self-repair from this kind of trauma."

Scrimgeour works for the US Army Research Institute of Environmental Medicine and recently looked at the effects of 5-weeks of low and adequate zinc diets on a specific protein in muscle cells called MMP. The study recreated blast injuries in 32 rats similar to what soldiers experience from IEDs, including loss of consciousness. An equal number of rats served as a control group. Results suggest that zinc supplementation reduces blast-induced cell stress. He will be presenting the results of his research at the American Society for Nutrition's Scientific Sessions & Annual Meeting at EB on Sunday, April 27.

"We know that soldiers' brain tissue cannot repair on low zinc diets," said Scrimgeour. "And they are losing zinc through diarrhea and sweating." The question moving forward is whether prevention through diet supplementation or post-blast treatment works best to repair behavioral deficits associated with mild TBI.

Scrimgeour added that further research is planned to investigate nutrient combinations for treating mild TBI, including omega-3, vitamin D, glutamine and/or zinc. Although the Army is conducting this research, the results can be applied outside of the military, according to Scrimgeour. "As the blast impact experienced by Soldiers are similar to those experienced during head injuries received in a car accident or during an NFL concussion, these findings could translate from the Soldier to the civilian population." Scrimgeour cautioned, however, that what works in animals doesn't always work in soldiers, which is why more research is needed.

More information: Dr Angus Scrimgeour presented the findings during the Experimental Biology 2014 meeting on Sunday, April 27.

Related Stories

Blasts may cause brain injury even without symptoms

date Mar 03, 2014

Veterans exposed to explosions who do not report symptoms of traumatic brain injury (TBI) may still have damage to the brain's white matter comparable to veterans with TBI, according to researchers at Duke Medicine and the ...

Recommended for you

Unlearning implicit social biases during sleep

date 6 hours ago

Can we learn to rid ourselves of our implicit biases regarding race and gender? A new Northwestern University study indicates that sleep may hold an important key to success in such efforts.

Deciphering dark and bright

date 6 hours ago

The human sensory systems contend with enormous diversity in the natural world. But it has been known for a long time the brain is adapted to exploit statistical regularities that nonetheless arise amongst this diversity. ...

How we make emotional decisions

date 8 hours ago

Some decisions arouse far more anxiety than others. Among the most anxiety-provoking are those that involve options with both positive and negative elements, such choosing to take a higher-paying job in a ...

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.