Certain flavourings used in electronic cigarette liquid may alter important cellular functions in lung tissue, according to new research presented at the 2015 American Thoracic Society International Conference. These changes in cell viability, cell proliferation, and calcium signalling are flavour-dependent. Coupling these results with chemicals identified in each flavour could prove useful in identifying flavours or chemical constituents that produce adverse effects in users.
“The effects of the various chemical components of e-cigarette vapour on lung tissue are largely unknown,” said lead author Temperance Rowell, a graduate student in the Cell Biology and Physiology Department of the University of North Carolina at Chapel Hill. “In our study using human lung epithelial cells, a number of cell viability and toxicity parameters pointed to 5 of 13 flavours tested showing overall adverse effects to cells in a dose-dependent manner.” Read full article
American Thoracic Society (17 May 2015) Electronic cigarette flavorings alter lung function at the cellular level [editorial]. Retrieved from http://tinyurl.com/q4gftyj