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Exosomal Epigenetic Biomarkers Associated with Flavored Electronic Cigarette Use in Adults

Principal Investigator: Dongmei Li and Ifran Rahman
Funding Mechanism: National Institutes of Health - Grant
ID Number: 1R21ES032159-01A1
Award Date: 5/18/2021
Institution: University of Rochester


More information about the health risks, especially long-term health risks, of flavored e-cigarette use would be useful. The goal of this study is to identify exosomal epigenetic biomarkers (including microRNAs and long non-coding RNAs) associated with flavored e-cigarettes. Study aims are: (1) to examine blood and urinary exosomal epigenetic biomarkers and associated biological pathways related to flavored (such as fruit-flavored) e-cigarette use; and (2) to evaluate within-subject alterations in exosomal epigenetic biomarkers and associated biological pathways during e-cigarette initiation and cessation. Researchers will analyze blood and urine specimens from the Population Assessment of Tobacco and Health (PATH) Study biorepositories. After identifying key biomarkers, researchers will expose them to primary human bronchial epithelial cells and small airway epithelial cells from non-smoker adults to determine their toxicity/inflammatory response. Findings may inform future regulatory activities related to flavored e-cigarettes. 
 

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