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J Expo Sci Environ Epidemiol

Title:		The skin is no barrier to mixtures: Air pollutant mixtures and reported psoriasis or eczema in the Personalized Environment and Genes Study (PEGS)
Author(s):		Lowe ME; Akhtari FS; Potter TA; Fargo DC; Schmitt CP; Schurman SH; Eccles KM; Motsinger-Reif A; Hall JE; Messier KP;
Address:		"National Institute of Environmental Health Sciences, Division of the National Toxicology Program, Durham, USA. melowe1216@gmail.com. National Institute of Environmental Health Sciences, Clinical Research Branch, Durham, USA. melowe1216@gmail.com. National Institute of Environmental Health Sciences, Biostatistics and Computational Biology Branch, Durham, USA. National Institute of Environmental Health Sciences, Division of the National Toxicology Program, Durham, USA. National Institute of Environmental Health Sciences, Office of Data Science, Durham, USA. National Institute of Environmental Health Sciences, Clinical Research Branch, Durham, USA. National Institute on Aging, Clinical Research Core, Bethesda, USA. National Institute on Minority Health and Health Disparities, Bethesda, USA"
Journal Title:		J Expo Sci Environ Epidemiol
Year:		2023
Volume:		20221202
Issue:		3
Page Number:		474 - 481
DOI:		10.1038/s41370-022-00502-0
ISSN/ISBN:		1559-064X (Electronic) 1559-0631 (Print) 1559-0631 (Linking)
Abstract:		"BACKGROUND: Autoimmune (AI) diseases appear to be a product of genetic predisposition and environmental triggers. Disruption of the skin barrier causes exacerbation of psoriasis/eczema. Oxidative stress is a mechanistic pathway for pathogenesis of the disease and is also a primary mechanism for the detrimental effects of air pollution. METHODS: We evaluated the association between autoimmune skin diseases (psoriasis or eczema) and air pollutant mixtures in 9060 subjects from the Personalized Environment and Genes Study (PEGS) cohort. Pollutant exposure data on six criteria air pollutants are publicly available from the Center for Air, Climate, and Energy Solutions and the Atmospheric Composition Analysis Group. For increased spatial resolution, we included spatially cumulative exposure to volatile organic compounds from sites in the United States Environmental Protection Agency Toxic Release Inventory and the density of major roads within a 5 km radius of a participant's address from the United States Geological Survey. We applied logistic regression with quantile g-computation, adjusting for age, sex, diagnosis with an autoimmune disease in family or self, and smoking history to evaluate the relationship between self-reported diagnosis of an AI skin condition and air pollution mixtures. RESULTS: Only one air pollution variable, sulfate, was significant individually (OR = 1.06, p = 3.99E-2); however, the conditional odds ratio for the combined mixture components of PM(2.5) (black carbon, sulfate, sea salt, and soil), CO, SO(2), benzene, toluene, and ethylbenzene is 1.10 (p-value = 5.4E-3). SIGNIFICANCE: While the etiology of autoimmune skin disorders is not clear, this study provides evidence that air pollutants are associated with an increased prevalence of these disorders. The results provide further evidence of potential health impacts of air pollution exposures on life-altering diseases. SIGNIFICANCE AND IMPACT STATEMENT: The impact of air pollution on non-pulmonary and cardiovascular diseases is understudied and under-reported. We find that air pollution significantly increased the odds of psoriasis or eczema in our cohort and the magnitude is comparable to the risk associated with smoking exposure. Autoimmune diseases like psoriasis and eczema are likely impacted by air pollution, particularly complex mixtures and our study underscores the importance of quantifying air pollution-associated risks in autoimmune disease"
Keywords:		Humans United States/epidemiology *Air Pollutants/adverse effects/analysis Particulate Matter/adverse effects/analysis Environmental Exposure/adverse effects/analysis *Air Pollution/adverse effects/analysis *Eczema/chemically induced/epidemiology *Psorias;
Notes:		"MedlineLowe, Melissa E Akhtari, Farida S Potter, Taylor A Fargo, David C Schmitt, Charles P Schurman, Shepherd H Eccles, Kristin M Motsinger-Reif, Alison Hall, Janet E Messier, Kyle P eng Research Support, N.I.H., Intramural 2022/12/03 J Expo Sci Environ Epidemiol. 2023 May; 33(3):474-481. doi: 10.1038/s41370-022-00502-0. Epub 2022 Dec 2"