Is Vaping Safer Than Smoking? What UK Health Experts Say Vape Jucce UK E cigarettes no better than regular ones. Study finds they can harm your liver Health PDF) E cigarette constituents propylene glycol and vegetable glycerin decrease glucose uptake and its metabolism in airway epithelial cells in vitro Cigarette lectronique et diabte : vapoter en tant diabtique New workplace issue: If there's no smoke, is it smoking? The combination of propylene glycol and vegetable glycerin e cigarette aerosols induces airway inflammation and mucus hyperconcentration Scientific Reports