More evidence has press in on thefiery debate about the safetyof vaping and e - cigarettes , highlighting how many of the fruity flavorings and other additives in e - cigaret liquidness appears to increase inflammation and impair lung role . Even more damningly , the new findings exhibit that short - terminal figure exposure to tocopherol - cigarette vapor caused grade of inadequate - terminus lung inflammation similar , if not bad , to that seen in traditional tobacco cigarettes .

The raw field of study , publish in theAmerican Journal of Physiology , was transmit out on mouse ( mention : not world ) by scientist from the University of Athens in Greece . They divided the mice into four groups and subjected them to whole - torso photo of varying chemical combinations four times each day with 30 - mo gage - free breaks .

One group were exposed to baccy cigarette sess , one to flavorless e - cig vapor deduct from plant oils called propene glycol , one to e - butt vapor contain propene glycol and nicotine , and another to e - cigarette vapor containing propene glycol , nicotine , and tobacco flavouring .

After three days , all of the chemical group showed signs of ignition , mucus yield , and altered lung role . However , the group exposed to the vapour containing nicotine and flavorings usher more disconfirming core with prospicient - terminal figure photo . moreover , the group exposed to flavorings show increase levels of two inflammation - producing proteins , intimate this element may pose rich health risk of infection .

“ The condition of the e - cigarette groups in comparing with the cigarette mathematical group storm the researchers , ” the American Journal of Physiology save in apress waiver . “The level of oxidative strain — tenseness at a cellular level — in the season grouping was adequate to or higher than that of the cigarette group . ”

Before jump to any bold conclusions , there are a few things to consider when bet at this study . First of all , most obviously , this is a discipline on mice , not humans . Secondly , it ’s hard to liken vaping with being put in a evaporation - make full room four multiplication a day with just a 30 - second separation in between . third , all of the studied effects were short - condition impression . Since vaping is such a new trend , there are next to no tenacious - term discipline on the   phenomenon , which is partially why its safety is so hotly debated .

Nevertheless , this report builds on the mounting evidence that e - cigarettes also contain health concerns of their own , even though the current consensus still reason that they are less unhealthful than fume cigarettes . In the words of the researchers : " The discovered detrimental effects in the lung upon [ atomic number 99 - cigarette ] vapour exposure in animal example highlight the motive for further probe of safety and toxicity of these rapidly expanding devices worldwide . "