Nicotine Vaping Causes Lung<br />Cancer in Mice, Study Finds.<br />A recent study by New York University<br />has found a pattern of lung cancer in<br />mice exposed to e-cigarette vapor. .<br />Over a 54 week period, 40 mice received<br />the vapor equivalent of someone who’s<br />smoked e-cigarettes for three to six years. .<br />22.5 percent developed lung cancer and 57.5 percent<br />developed pre-cancerous lesions in their bladders.<br />An additional 20 mice,<br />who only received vapor<br />free of nicotine, were<br />found to be cancer free. .<br />According to the study’s lead professor,<br />Moon-shong Tang, these results prove that<br />e-cigarette vapor is likely a human carcinogen. .<br />The carcinogenic mechanism is via production<br />of nitrosamines, the proven human carcinogens.<br />So, the probability that e-cigarette vapor is a<br />human carcinogen is high, Moon-shong Tang, to Axios.<br />In a previous study, Tang also found that<br />electronic cigarette smoke induced DNA<br />damage and inhibited DNA repair in mice.
