Everything you need to know about e cigarettes Vox Frontiers Impact of e cigarette vaping aerosol exposure in pregnancy on mTOR signaling in rat fetal hippocampus E liquids and vanillin flavoring disrupts retinoic acid signaling and causes craniofacial defects in Xenopus embryos ScienceDirect Full article: Short term exposure of female BALB cJ mice to e cigarette aerosol promotes neutrophil recruitment and enhances neutrophil platelet aggregation in pulmonary microvasculature Vaping while pregnant could cause craniofacial birth defects, study shows