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Simulated Burn Pit Smoke Exposures Increase Inflammation in the Brain

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  • Overview
Military personnel are thrice as likely than the general population to develop neurodegenerative diseases like Alzheimer’s Disease, Parkinson’s Disease, and dementia. They are exposed to smoke generated from organic and human made material in burn pits which contains potential carcinogens and toxicants that cause lung and cardiovascular diseases as well as generalized inflammation. Despite the higher incidences of neurodegenerative disorders documented for this demographic, it is not clear how exposure to these toxicants affects the brain. In this study we examine how localized inflammatory effects of simulated burn pit smoke (emitted from burning of plastic, paper, and wood type materials) affect the brain, specifically the choroid plexus. We found that short-term exposures to these smoke emissions are sufficient to elicit changes in inflammation-specific markers in the choroid plexus which were fuel type-dependent.

Impact/Purpose

The choroid plexus thickness and inflammation has been associated with an increased risk of developing neurodegeneration, specifically Alzheimer’s Disease. In this study we found that plastic smoke causes thickening of the choroid plexus and an elevation of CXCL1, IL-6, and TNF-a inflammatory markers in the choroid plexus. 

Citation

Kim, Y., M. Mendez, S. Gavett, Ian Gilmour, H. Enright, AND G. Loots. Simulated Burn Pit Smoke Exposures Increase Inflammation in the Brain. Military Health System Research Symposium 2023, TBD abstract due March 3, 202, NC, August 01, 2023.
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Last updated on September 09, 2025
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