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Chronic pain in Gulf War veterans linked to brain structure changes

The brains of Gulf War Veterans with chronic pain possess larger pain processing regions and smaller pain regulation regions compared…

By Staff , in Pain , at June 13, 2022 Tags:

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The brains of Gulf War Veterans with chronic pain possess larger pain processing regions and smaller pain regulation regions compared to their healthy peers, according to new research published in JNeurosci.

Over one third of Gulf War Veterans experience widespread, chronic pain linked to a condition called Gulf War Illness. The underlying cause of the pain is poorly understood, preventing the development of effective treatments. Ninneman et al. analyzed the brains of Gulf War Veterans with and without pain using MRI. The participants also completed questionaries about their pain symptoms, fatigue, and mood.

Those with chronic pain displayed smaller left and right insular cortices, two brain areas involved in regulating pain. They also had larger areas of the frontal cortex, specifically in regions involved in pain sensitivity and emotional regulation. The structural changes were more pronounced in people with worse pain, but there was no relationship with fatigue or mood. These results indicate the chronic pain from Gulf War Illness may stem from changes in how the central nervous system processes pain, rather than with issues with nerves or pain receptors.

This article is based on a press release from the Society for Neuroscience.

Staff
The team at The Medical Dispatch

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