E-cigarette study finds bacterial and fungal toxins in some products

"Airborne Gram-negative bacterial endotoxin and fungal-derived glucans have been shown to cause acute and chronic respiratory effects in occupational and environmental settings. Finding these toxins in e-cigarette products adds to the growing concerns about the potential for adverse respiratory effects in users."

The big picture: The researchers note in the study, published online in the journal Environmental Health Perspectives Wednesday, contamination of the products could have occurred at any point during the production of the ingredients or after the e-cigarette product was finished.

Between the Lines: Cotton wicks used in e-cigarette cartridges may be one potential source of contamination, they hypothesised. Endotoxin and glucan are both known contaminants of cotton fibers.

The other side: A February study found e-cigarettes are an effective way for smokers to quit smoking — twice as effective as other nicotine products like gum and patches.

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