MINE D'INFOS/
Actualités en libre partage.
Ce blog vous offre outre des
Infos: protection sociale, culture etc. des interviews esclusives [libre de droits sous réserve
de sourcer le blog].
La créatrice du blog [ex. Chef de service
MGEFI] passionnée
d'Afrique & RS est journaliste membre du réseau mutualiste MutElles; SEE;
& ADOM.
✍️Pour proposer un sujet à la rédaction merci d'écrire à sa rédactrice en chef Nora ANSELL-SALLES
pressentinelle2@gmail.com /
Comparison of the chemical composition of aerosols from heated tobacco products, electronic cigarettes and tobacco cigarettes and their toxic impacts on the human bronchial epithelial BEAS-2B cells
Comparison of heated tobacco product (HTP), e-cig and cigarette toxicity is lacking.
•
HTP emits lesser carbonyls and PAHs than cigarette but more than e-cig.
•
Cytotoxicity of HTP is lower than that of cigarette but stronger than that of e-cig.
•
Increasing e-cig power impacts toxic compound levels and related oxidative stress.
•
All devices have the potential to induce oxidative stress and inflammatory response.
Abstract
The electronic cigarettes (e-cigs) and more recently the heated tobacco products (HTP) provide alternatives for smokers as they are generally perceived to be less harmful than conventional cigarettes. However, it is crucial to compare the health risks of these different emergent devices, in order to determine which product should be preferred to substitute cigarette. The present study aimed to compare the composition of emissions from HTP, e-cigs and conventional cigarettes, regarding selected harmful or potentially harmful compounds, and their toxic impacts on the human bronchial epithelial BEAS-2B cells. The HTP emitted less polycyclic aromatic hydrocarbons and carbonyls than the conventional cigarette. However, amounts of these compounds in HTP aerosols were still higher than in e-cig vapours. Concordantly, HTP aerosol showed reduced cytotoxicity compared to cigarette smoke but higher than e-cig vapours. HTP and e-cig had the potential to increase oxidative stress and inflammatory response, in a manner similar to that of cigarette smoke, but after more intensive exposures. In addition, increasing e-cig power impacted levels of certain toxic compounds and related oxidative stress. This study provides important data necessary for risk assessment by demonstrating that HTP might be less harmful than tobacco cigarette but considerably more harmful than e-cig.
Access through your institution
Aucun commentaire:
Enregistrer un commentaire