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Smoking e-cigarettes increased the risk of developing pneumonia. After collecting data from different vapers, researchers discovered that bacteria that cause the lung infection stick to their cells lining airways more easily than they do in non-e-cigarette users. Traditional cigarettes have long been linked to an increased risk of pneumonia, but it is not clear whether e-cigarettes might have the same effect.
The study, conducted by researchers from the Queen Mary University of London, provides more insight to the harmful effects of vaping on lungs.lPneumonia is an infection of the lungs that can cause mild to severe illness in people of all ages and kills millions of people yearly.
For the study, researchers led by Dr Jonathan Grigg, a professor of pediatric respiratory and environmental medicine, asked people who vaped regularly to smoke an e-cigarette in the lab. They discovered that vaping increased levels platelet-activating factor receptor (PAFR) – a substance that makes pneumonia-causing bacteria stick to airways. When researchers compared participant’s PAFR levels before and after the vaping session, they discovered an increase in these molecules 60 minutes after they vaped.
Researchers exposed mice to e-cigarette vapor and found higher PAFR production in the rodents that inhaled the fumes. PAFR levels surged in human nose lining cells in culture dishes exposed to e-liquids with nicotine and in cells exposed to nicotine-free vapor. This lead to an increase in pneumonia-causing bacteria adhering to the cells.
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