ArticleParticle and fibre toxicology2026
Inhalation exposure to surrogate military burn pit emissions impairs systemic microvascular function: linking pulmonary insult and diverse peripheral responses.
Article in Particle and fibre toxicology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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20 authors.
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Abstract
Millions of U.S. troops and supporting personnel have been deployed to military bases in the Middle East. Essentially all personnel on military bases were exposed to the combustion emissions generated by open pit waste burning. Chronic multisymptom illness (CMI) is a term advanced to characterize the complex health effects of inhalation exposures to military burn pits (BP). Because of the diversity of geography, environmental conditions, and deployment operations, it is very challenging to estimate the number of Veterans affected by CMI, but it has been reported to be in the range of ~ 40-60%. Despite this overwhelming number of patients, the underlying causes of CMI remain to be identified. The purpose of this study was to replicate BP combustion and deliver these representative emissions to a whole-body inhalation exposure chamber with Sprague Dawley rats. We hypothesized that because the microcirculation is a critical component of health and disease, that normal microvascular function may be disrupted after BP inhalation exposures. A surrogate BP emission generator was used to combust mixtures of wood, rubber, plastic and jet fuel. Resultant emissions were complex mixtures of volatile organic chemicals, polyaromatic hydrocarbons, fine and ultrafine particles. The particle aerodynamic count median diameter was 113 nm with a geometric standard deviation of 2.21. The particle mobility diameter was 78.1 nm with a geometric standard deviation of 1.69. The aerosol mass-size size distribution had a mass median aerodynamic diameter of 288 nm with a geometric standard deviation of 1.72 nm. Rats were exposed for ~ 4 h/d at BP emission concentrations of 15.4 ± 1.6 mg/m
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