Beim Erhitzen des Hauptbestandteils der meisten E-Zigaretten-Flüssigkeiten können zwei giftige Chemikalien entstehen, die menschliche Lungenzellen schädigen können
https://news.ucr.edu/articles/2025/10/23/hidden-toxins-e-cigarette-fluids-may-harm-lung-cells
3 Kommentare
>The researchers characterized the toxicity of **methylglyoxal and acetaldehyde**, both known toxins that can be generated during the heating of vaping liquids containing propylene glycol. While these chemicals are already recognized as harmful in other settings, their impact during vaping has not been well understood until now.
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>Prue Talbot (left) and Man Wong
>Using lab-grown human airway tissue, the team exposed cells to realistic levels of each compound and monitored how the cells responded. Both chemicals disrupted essential cell functions, but methylglyoxal caused greater damage at much lower concentrations. It interfered with mitochondria, the structures
> The study also showed that even short-term exposure to these chemicals can alter cellular pathways linked to energy production, DNA repair, and structural integrity
[Frontiers | Acetaldehyde and methylglyoxal: comparative analysis of toxic electronic cigarette degradation products in 3D and 2D exposure systems using human bronchial epithelial models](https://www.frontiersin.org/journals/toxicology/articles/10.3389/ftox.2025.1624794/full)
Over my lifetime (50 years) have been making steady progress fighting against the tobacco industry. When I was a kid vending machines were easily accessible to anyone, smoking in planes and restraints was normal, all cars came with a lighter and ashtray, and marketing was aggressive.
We chipped away at it to the point that teenagers were hardly smoking at all. Then e-cigarettes came along and we just let them take over without blinking an eye. There was a moment early on when a sensible lawmaker could have grandfathered them into all the cigarette regulations, but instead we sat on our hands. Even high schools were struggling to pivot. The end result is when my kids were in high school, vaping was wildly popular. It is a shame we will continue to have kids getting sick so big corporations can make billions.
Acetaldehyde?
A little extra is no problem for me, I’m a already an alcoholic.