Principal Investigator(s): Alexandra Noël
Funding Mechanism: NIH Grant
ID number: 1K01HL149053-01
Award Date: 3/12/2020
Institution: Louisiana State University A&M College Baton Rouge
Although clinical evidence demonstrates declines in lung function and increases in heart attack risk in healthy dual-users of e-cigarettes and cigarettes, more evidence regarding the cardiopulmonary effects of chronic inhalation of electronic nicotine delivery system (ENDS) aerosols would be useful. The goal of this study is to evaluate how two ENDS products -- open system e-cigarette devices and closed system JUUL-type devices -- impact individual or combinations of aerosol constituents and their toxicity using innovative cell culture systems and mouse models. Study aims are: (1) to examine the roles that e-liquid constituents (i.e., propylene glycol/vegetable glycerin, flavors, nicotine) play in the chemical profiles and lung toxicity of ENDS aerosols using in vitro models; (2) to define a panel of biomarkers for cardiopulmonary effects following exposures to e-cigarette aerosols, JUUL aerosols, and dual use of cigarettes and e-cigarettes in juvenile mice; and (3) to compare pulmonary toxicity induced by e-cigarette or JUUL aerosols in mice. Findings may clarify the cardiopulmonary effects caused by prolonged use of ENDS and inform regulatory activities.