A small experimental study, led by Prof David Thickett, at the University of Birmingham, is published online in the journal Thorax found vapour caused inflammation and impaired the activity of alveolar macrophages, cells that remove potentially damaging dust particles, bacteria and allergens.
Thorax is one of the world’s leading respiratory medicine journals, publishing clinical and experimental research articles on respiratory medicine, paediatrics, immunology, pharmacology, pathology, and surgery
Researchers found e-cigarette vapour disabled important immune cells in the lung and boosted inflammation. The researchers “caution against the widely held opinion that e-cigarettes are safe”. They said some of the effects were similar to those seen in regular smokers and people with chronic lung disease. They caution the results are only in laboratory conditions and advise further research is needed to better understand the long-term health impact – the changes recorded took place only over 48 hours. Read more here