January 4, 2016 — A new study has found that e-cigarette vapors could damage cell DNA in a way that could lead to cancer.
The study was published by Oral Oncology in November 2015 by researchers at the University of California San Diego.
They created an extract from the vapor of two popular e-cigarette brands. Human epithelial cells were soaked in the extract for time-periods ranging from 48 hours to 8 weeks.
Cells exposed to e-cigarette vapor — both with and without nicotine — were significantly less viable and had increased rates of cell death and necrosis. The researchers found that e-cigarette vapor is cytotoxic to epithelial cells and it can damage DNA, which could potentially lead to cancerous mutations.
The authors of the study warned:
“Our study strongly suggests that electronic cigarettes are not as safe as their marketing makes them appear to the public. … Further assessment of the potential carcinogenic effects of e-cigarette vapor is urgently needed.”
Another study published last month by researchers at Harvard found diacetyl, a flavoring chemical, in over 75% of vaping liquids that were tested. Routinely breathing the chemical is associated with Popcorn Lung, a debilitating and life-threatening lung disease.
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