National Jewish Health study links e-cigarettes to rapid lung damage

New research led by National Jewish Health indicates that e-cigarette vapor can damage delicate lung tissues within just 24 hours of exposure. The study, published in JCI Insight, suggests that electronic cigarettes may pose risks comparable to traditional cigarettes.

Researchers analyzed human pulmonary epithelial and endothelial cells, as well as human lung tissue from the distal region. In preclinical models, exposure to e-cigarette vapor compromised the protective barrier of the distal lung, triggered cellular stress, and impaired the mechanisms responsible for removing damaged cellular components. Furthermore, the vapor was found to slow cell growth and repair.

Lead researcher Irina Petrache noted that significant changes in lung tissue and blood can be observed shortly after the first inhalation. The study also highlighted that these damages can persist in some individuals for up to 10 days after a single exposure, making the lungs more vulnerable to viral infections.