Cigarettes As Bad For Your DNA As Smoking Tobacco, Study Says

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Tobacco smoke contains over 70 chemicals that are known to cause cancer, while e-cigarette vapor contains far fewer toxic chemicals. However, when the team measured levels of XPC and OGG1/2, repair proteins that fix errors such as adducts, they found them to be reduced compared to ECS-free mice.

E-cigarette vapour could raise the risk of developing of cancer and heart disease by damaging DNA in as little as 10 years, a new study suggests.

Cells in the mice mutated and became cancerous at a much higher rate than in a control group of animals that breathed filtered air.

Dr Tang highlighted the increasing popularity of e-cigarettes and vaporisers in recent years as motivation for the research. Study author Moon-shong Tang also noted to Bloomberg that it's not clear whether conventional cigarettes or e-cigarettes would be more harmful. Norman states, "this study shows us that e-cigarettes should work as part of a supply reduction strategy; increase the price discrepancy between tobacco to harm reduction products like e-cigarettes, decrease tobacco availability and increase harm reduction options".

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Nicotine's potentially cancer-causing effects likely have been overlooked because prior to e-cigarettes the only folks who ever used nicotine on its own were former smokers trying to beat their habit, Alberg said. "Based on these results I can not conclude that E-cig smoke is safer than tobacco smoke in terms of cancer susceptibility of smokers".

"Research in people has shown that those who make a complete switch from smoking tobacco to e-cigarettes can significantly reduce their exposure to key harmful chemicals in tobacco smoke". "In both conditions nicotine is in aerosol state and reaches lung via the same path". Nicotine inhaled from e-cigarettes could be converted into chemicals that damage DNA in the heart, lungs and bladder, according to the study.

Vaping could increase the risk of youth smoking but would be less unsafe to health than smoking cigarettes, according to a report from the Academies of Science and Medicine published Tuesday, presented as the most extensive on the subject so far.

Not only might they act as a gateway to tobacco smoking, e-cigarettes by themselves may not be as harmless as once thought. Whether or not Tang's research into nicotine by-products changes that conclusion remains to be seen.