E cigarette aerosol exacerbates cardiovascular oxidative stress in mice with an inactive aldehyde dehydrogenase 2 enzyme ScienceDirect E liquids and vanillin flavoring disrupts retinoic acid signaling and causes craniofacial defects in Xenopus embryos ScienceDirect E liquid Additives: All Facts You Need To Know CHEMNOVATIC Pyrazine Additives E Cigarette Forum Frontiers Aerosolized nicotine from e cigarettes alters gene expression, increases lung protein permeability, and impairs viral clearance in murine influenza infection