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Date: January 20, 2024
In a groundbreaking study, researchers from Anglia Ruskin University (ARU) in the UK have uncovered alarming evidence suggesting that even nicotine-free vape fluids can cause significant harm to the lungs, mirroring damage seen in patients with lung injuries. The findings, published in the journal Microvascular Research, challenge the perception of e-cigarettes as harmless alternatives to traditional smoking.
E-cigarettes have witnessed a surge in popularity in recent years, often marketed as a safer option for smokers. However, the ARU research team’s investigation into the impact of nicotine-free vape fluid on the human lung has unveiled concerning results.
The study focused on an in vitro model of the human lung, exposing it to a common brand of nicotine-free e-cigarette with watermelon flavor. Three variations of the vape were tested, containing different concentrations of nicotine: 0mg, 10mg, and 20mg in a 2ml solution, reflecting commonly used concentrations.
The research revealed that exposure to nicotine-free vape fluid induced oxidative stress in the lung, heightened inflammation, and the breakdown of blood vessels—similar to the damage observed in individuals with lung injuries. The team identified a specific protein, ARF6, previously not associated with smoking or lung injury but linked to vascular function, as a key regulator in the observed damage to blood vessels.
Dr. Havovi Chichger, the lead author and Associate Professor of Biomedical Science at ARU, expressed concern about the increasing use of e-cigarettes, especially among young teenagers. “Vaping is a significant health concern considering the rising numbers of smokers, and research into its health impact is still at an early stage,” said Dr. Chichger. With the sale of nicotine-containing e-cigarettes banned in 39 countries, there has been a notable rise in the use of nicotine-free vapes, particularly among adolescents.
Notably, nicotine-free vape fluid was found to share similar chemical compositions with nicotine-containing fluid, except for the absence of nicotine. Dr. Chichger emphasized the challenges in evaluating the potential harm caused by different chemical components in the unregulated e-cigarette market.
The study raises critical questions about the health impact of vaping, challenging assumptions about the safety of nicotine-free e-cigarettes. As the market lacks comprehensive regulation, further investigation is deemed essential to unravel the link between the vaping of nicotine-free e-cigarettes and the potential development of lung injuries in the future. The study’s findings underscore the need for increased scrutiny and awareness surrounding the use of e-cigarettes, particularly among the youth population.
