The e-cigarette vapour boosts the production of inflammatory chemicals and disables key protective cells in the lung that keep the air spaces clear of potentially harmful particles, revealed the study published online in the journal Thorax. The vapour from e-cigarettes impairs the activity of alveolar macrophages, which engulf and remove dust particles, bacteria and allergens that have evaded the respiratory tract's other mechanical defences.
"In terms of cancer-causing molecules in cigarette smoke, as opposed to cigarette vapour, there are certainly reduced numbers of carcinogens", Professor Thickett said.
"We should have a cautious skepticism that [e-cigarettes] are as safe as we are being led to believe", Thickett said.
E-cigarettes are not as healthy as some people think they are, according to a new study.
Vaporisers are different from traditional e-cigarettes in terms of the range of flavours, mixing, better user control and large battery use.
To arrive at this conclusion, researchers conducted a study which mimicked the act of vaping on extracted alveolar macrophages from lung tissue samples provided by the eight nonsmokers. So, it can later trigger life-threatening conditions such as Chronic Obstructive Pulmonary Disease (COPD).
He also advised that further research is required to fully understand the long-term health impact of vaping.
Nevertheless, Public Health England still insists that vapes are much safer than normal cigarettes. One third of those cells were exposed to e-cigarette fluid, another third to vapourized liquid and the remaining third to nothing.
The researchers "caution against the widely held opinion that e-cigarettes are safe".
The inhalant vapor of the electronic cigarette, according to the new study, destroys cells of the immune system, making it hard for the lungs to get rid of potentially risky micro-organisms and infections.
The HSE discusses e-cigarettes on its website, and states: "We don't really know until they have been thoroughly assessed and monitored in a large population over time".
"E-Cigarettes contain nicotine which is addictive".
Initially public health experts were not that concerned about e-cigarettes because they were being marketed as a way to help smokers quit, Blaha said.
In an accompanying podcast, Professor Thickett said the tobacco giants, who have bought up numerous e-cigarette companies, have an agenda to portray e-cigarettes as safe.
This week the government's Science and Technology committee would release a report on the safety of e-cigarette smoke.
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