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Title: Analysis of Postdeployment Serum Samples Identifies Potential Biomarkers of Exposure to Burn Pits and Other Environmental Hazards.

Authors: Thatcher, Thomas H; Woeller, Collynn F; Thakar, Juilee; Khan, Atif; Hopke, Philip K; Smith, Matthew Ryan; Uppal, Karan; Walker, Douglas I; Go, Young-Mi; Jones, Dean P; Krahl, Pamela L; Mallon, Timothy M; Sime, Patricia J; Phipps, Richard P; Utell, Mark J

Published In J Occup Environ Med, (2019 12)

Abstract: The potential health risks of deployment to sites with open burn pits remain poorly understood, in part, because personal exposure monitoring was not performed. Here, we investigated whether postdeployment serum samples contain biomarkers associated with exposure to burn pits.A total of 237 biomarkers were measured in 800 serum samples from deployed and never-deployed subjects. We used a regression model and a supervised vector machine to identify serum biomarkers with significant associations with exposures and deployment.We identified 101 serum biomarkers associated with polycyclic aromatic hydrocarbons, dioxins or furans, and 54 biomarkers associated with deployment. Twenty-six of these biomarkers were shared in common by the exposure and deployment groups.We identify a potential signature of exposure to open burn pits, and provide a framework for using postexposure sera to identify exposures when contemporaneous monitoring was inadequate.

PubMed ID: 31800450 Exiting the NIEHS site

MeSH Terms: Afghan Campaign 2001-; Air Pollutants/adverse effects; Air Pollutants/blood*; Biomarkers/blood; Dioxins/adverse effects; Dioxins/blood; Female; Furans/adverse effects; Furans/blood; Humans; Incineration/statistics & numerical data; Inhalation Exposure/adverse effects; Inhalation Exposure/analysis*; Inhalation Exposure/standards; Iraq War, 2003-2011; Machine Learning; Male; Mass Spectrometry; MicroRNAs/blood; Military Personnel/statistics & numerical data*; Polycyclic Aromatic Hydrocarbons/adverse effects; Polycyclic Aromatic Hydrocarbons/blood; United States; Waste Disposal Facilities/statistics & numerical data

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