According to a team of scientists from the University of Rochester, vaping flavors such as vanilla and cinnamon are toxic to leukocytes, or white blood cells, increasing the risk of developing life-threatening diseases.
For the study, the researchers exposed immune cells to chemicals used in e-cigarette flavoring. They discovered that this type of cells produced substances responsible for inflammation and tissue damage. In addition, many of the flavoring chemicals caused a significant level of the death of these cells.
Senior author Dr. Irfan Rahman, of the environmental health sciences center, says: “While e-cigarettes are thought to have relatively less or no harm to the consumer’s health compared to tobacco smoke, vaping flavors are not safe for inhalation. Currently, these are not regulated, and alluring flavor names, such as candy, cake, cinnamon roll and mystery mix, attract young vapers.”
According to the new laboratory study from the US, flavourings used in electronic cigarettes can intensify the toxicity of the vapour inhaled by a user. Moreover, electronic cigarette vapour becomes more toxic when users upgrade their devices increasing the voltage of battery output.
Senior researcher Maciej Goniewich, an assistant professor of oncology at Roswell Park Cancer Institute in Buffalo, N. Y., says that the toxins in e-cigarette vapour irritate and inflame cells in the respiratory tracts and can cause or exacerbate breathing issues in some users.
Researchers suggest that their findings raise some concerns about safety of flavourings used in electronic cigarettes.