A new study has identified a protein that nicotine-free vape fluid increases in the lung, causing damage including oxidative stress, inflammation and breakdown of the blood vessels.

The research, published in the journal Microvascular Research demonstrates a range of damaging pathways when an in vitro model of the human lung was exposed to a common brand of nicotine-free e-cigarette.

E-cigarettes have become increasingly popular in recent years and are often seen as harmless alternatives to cigarette smoking. It is estimated that there are almost five million ‘vapers’ in the UK, compared to around 700,000 in 2012.

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[–] [email protected] 5 points 10 months ago

I've seen previous studies about the flavoring used, as well. Something about how it's a food flavoring only approved for eating, not for inhaling.

I don't think I've ever heard of nicotine itself being a major contributor.