E-cigarettes Aren’t Benign, Suggest Recent Studies
A slew of new studies detailed at the 2015 American Thoracic Society International Conference in Denver, Colorado this week are raising concerns about e-cigarettes (electronic cigarettes, or e-cigs). While the new “drug device” studies are generally ongoing, and so unpublished, their cumulative effect was impactful.
Some e-cig flavorings alter lung function at cellular level
Certain flavorings—often given cute, teen-friendly names—in e-cig liquid may change key cellular functions in lungs, according to a study conducted by a team led by Temperance Rowell, a graduate student with the Cell Biology and Physiology Department of the University of North Carolina, Chapel Hill (UNC). The changes occur in cell viability, cell proliferation, and calcium signaling.
In the UNC study, cultured human airway epithelial cells were given different doses of 13 e-cig liquid flavors for 30 minutes, or 24 hours. During the 30-minute test, “Hot Cinnamon Candies,” “Banana Pudding (Southern Style),” and “Menthol Tobacco” all were...
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