A comprehensive toxicological analysis of panel of unregulated e-cigarettes to human health

Shivadas Sivasubramaniam, Asha Guraka, Slaveya Mierlea, Samantha Drake, Isaac Shawa, Joe Waldron , Martin Corcoran , Donna Dowse, Doug Walkman, Lisa Burn, Ali Kermanizadeh

Research output: Contribution to journalArticlepeer-review

Abstract

Electronic cigarettes, commonly referred to as e-cigarettes have gained popularity over recent years especially among young individuals. In the light of the escalating prevalence of the use of these products and their potential for long-term health effects, in this study as the first of its kind a comprehensive toxicological profiling of the liquid from a panel of unregulated e-cigarettes seized in the UK was undertaken using an in vitro co-culture model of the upper airways. The data showed that e-cigarettes caused a dose dependent increase in cell death and inflammation manifested by enhanced release of IL1ß and IL6. Furthermore, the e-cigarettes induced oxidative stress as demonstrated by a reduction of intracellular glutathione and an increase in generation of reactive oxygen species. Moreover, the assessment of genotoxicity showed significant DNA strand breaks (following exposure to Tigerblood flavoured e-cigarette). Moreover, relevant to the toxicological observations, was the detection of varying and f
Original languageEnglish
JournalToxicology
Early online date1 Oct 2024
DOIs
Publication statusPublished - Dec 2024

Keywords

  • Unregulated e-cigarettes
  • Genotoxicity
  • Oxidative stress
  • Inflammation
  • Pulmonary toxicity

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