Smoke from e-cigarettes linked to cancer in animal study
“Published online October 7 in Proceedings of National Academy of Sciences (PNAS), the study found that 9 of 40 mice (22.5 percent) exposed to E-cig smoke with nicotine for 54 weeks developed lung adenocarcinomas. None of the 20 mice from the study exposed to the same E-cig smoke without nicotine developed cancer.
The current study results confirm that nicotine from E-cig smoke can cause cancer in the lungs, and precancerous growth in the bladders, of mice. Much like combustible cigarettes, findings suggest that secondhand vaping fumes also pose a risk to other people within close proximity.
Furthermore, the results argue that nicotine, once inside cells, is converted into nitrosamines, potent cancer-causing chemicals that do not leave cells and, therefore, could never be captured by tests that measure nitrosamine levels outside of cells (e.g. blood tests).” This is an important process which points to some of the potential long-term dangers of e-cigarette use and calls into question their eventual approval by the FDA.
More : https://eurekalert.org/pub_releases/2019-10/nlh-esc100219.php
