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Home NEWS Science News Health

Common additive may be why you have food allergies

Bioengineer by Bioengineer
July 12, 2016
in Health
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common additives

A Michigan State University researcher has found that a common food additive may be linked to a rise in food allergies.

Cheryl Rockwell, an assistant professor of pharmacology and toxicology in the College of Human Medicine, began studying the possible link between the synthetic food additive tert-butylhydroquinone, or tBHQ, nine years ago.

Now she has received an award from the National Institute of Environmental Health Sciences to continue her work. The Outstanding New Environmental Scientist, or ONES, award comes with a $1.5 million, five-year grant to support her research.

Rockwell has dreamed of winning the award since she was a postgraduate student. She recently was notified that she was among only five researchers this year to be selected.

Approved by the U.S. Food and Drug Administration in 1972, tBHQ is a preservative in many foods, such as cooking oil, nuts, crackers, waffles and breads. Often tBHQ is not listed on the label, Rockwell said.

Her research has shown that tBHQ causes T cells, a critical part of the body’s immune system, to release a set of proteins that can trigger allergies to such foods as nuts, milk, eggs, wheat and shell fish.

“I think of the immune system as a military force,” Rockwell said. “Its job is to protect the body from pathogens, such as viruses. The T cells are the generals.”

Normally, the T cells release proteins, known as cytokines, that help fight the invaders, she said, but when tBHQ was introduced in laboratory models, the T cells released a different set of cytokines that are known to trigger allergies to some foods.

Her studies showed that when tBHQ was present, the T cells started behaving differently.

“The T cells stopped acting as soldiers in the defense against pathogens and started causing allergies, Rockwell said. “What we’re trying to find out now is why the T cells are behaving this way.”

The expanded use of tBHQ, she said, parallels a rise in food allergies and an increase in the severity of some allergic reactions.

With her ONES grant, Rockwell plans to study a signaling pathway she has identified in cells that appears to play a role in causing the food allergies when tBHQ is present. She hopes to identify other chemicals that trigger that same signaling pathway.

“We think there could be quite a few,” she said, including lead and cadmium.

The National Institute of Environmental Health Sciences created the ONES program to support researchers early in their careers and conduct innovative research to study how the environment influences human health.

“This project is my baby,” she said. “I need to keep it going.”

###

Michigan State University has been working to advance the common good in uncommon ways for more than 150 years. One of the top research universities in the world, MSU focuses its vast resources on creating solutions to some of the world’s most pressing challenges, while providing life-changing opportunities to a diverse and inclusive academic community through more than 200 programs of study in 17 degree-granting colleges.

Media Contact

Sarina Gleason
[email protected]
517-355-9742
@MSUnews

http://msutoday.msu.edu/journalists/

The post Common additive may be why you have food allergies appeared first on Scienmag.

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