New Study - Cig Smoke Causes Cellular Death, Vapor Doesn't

[KattMamma]

Development of an in vitro cytotoxicity model for aerosol exposure using 3D reconstructed human airway tissue; application for assessment of e-cigarette aerosol

A long, dry read, but might be helpful to someone... a few good quotes :

Unlike cigarettes, exposure of EpiAirway™ tissue to either variety of e-cigarette did not reduce tissue viability relative to untreated (incubator) control tissues.

(EpiAirway tissue is grown in a lab from human tracheal/bronchial epithelial cells for research purposes)

Under the study conditions cigarette smoke demonstrated a dose-dependent response that resulted in near-complete cell death after a 6 h exposure period. In contrast, e-cigarette aerosol showed no decrease in tissue viability following a 6 h exposure, despite appropriate positive control responses.

Odd - under "Conflicts of Interests" it says :

The authors report no conflicts of interest and are employees of British American tobacco or contracted by British American tobacco.

It seems this would be the opposite of "conflict of interest" ?

 

[KingOhms]

I am enjoying the fact that they showed a diagram of how the smoking robot worked for the cigarette/ cig-a-like. That little detail helps us understand the process they are using to determine these results.

 

[DrMA]

As discussed previously, this study conslusively demonstrates [HASHTAG]#vaping[/HASHTAG] is no more harmful than breathing air even at levels of exposure orders of magnitude greater than those experienced by an average user.
New study: vaping no more toxic than breathing air | E-Cigarette Forum

 

[VNeil]

Once again, a study suggests no harm to vaping. Which agrees with a general observation that there is a decided lack of evidence, in the form of actual case studies, of anyone having been harmed by vaping.

Despite that the naysayers will continue to dispute the facts, in this case because the study was performed by BAT, which has a commercial interest in the general vaping/nicotine industry. As if any other researcher is totally unbiased and has no axes to grind????? And so the stomach (and the mod) turns.

Personally, I am gratified that my choice of vaping has no known significant health consequences at this point in time. I can't say that about gin & tonic, which is a drink I like from time to time. Or my soft drink of choice, Pepesi, high test, with natural sweeteners (I'm an organic kind of guy when it comes to sweeteners, none of that stuff made in chemistry labs for me). If only all the other things I ingest were so free of known harm as my vape ....

 

[Kent C]

And people on this forum might want to view this in 'regulation':

Tomorrow's FDA workshop on Biomarkers of Tobacco Exposure to focus on e-cigs | E-Cigarette Forum