The findings are published in the Journal of Allergy and Clinical Immunology and suggest that inhaling e-cigarette smoke could be damaging neutrophils, the first line of defence the human immune system has. The findings are important as previous research has shown that damage caused to neutrophil by cigarette smoking can lead to long-term lung damage.
Researchers from the University of Birmingham took blood samples from healthy donors who had never smoked or vaped. The team then exposed neutrophils taken from the blood to 40 puffs of unflavoured vape, which previous studies have shown is a low daily exposure; with half of the samples were exposed to nicotine-containing vapour, while the rest were to nicotine-free alternatives.
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