Abstract Title:

Toxicity of electronic cigarettes: A general review of the origins, health hazards, and toxicity mechanisms.

Abstract Source:

Sci Total Environ. 2021 Jun 10 ;772:145475. Epub 2021 Jan 30. PMID: 33770885

Abstract Author(s):

Yuna Cao, Daming Wu, Ying Ma, Xinmo Ma, Shile Wang, Fuxian Li, Menghan Li, Ting Zhang

Article Affiliation:

Yuna Cao


Electronic cigarettes (E-cigarette) are an alternative for traditional cigarette smokers to quit smoking. Based on the current understanding, electronic cigarettes have rapidly become popular among existing smokers and former non-smokers. However, increasing research at different levels reveals that e-cigarettes are unsafe. This review provides an overview of the toxicology of e-cigarettes based on existing in vivo and in vitro studies and compares their toxicity with that of traditional cigarettes. Moreover, we describe the associated toxicity components in e-cigarettes, as well as the potential mechanism by which e-cigarettes exert toxic effects. As is known to all, the nicotine in traditional cigarettes and e-cigarettes has certain toxicity. Besides, a few studies have shown that propylene glycol and vegetable glycerin mixture and flavoring agents in e-cigarettes also are the key components causing adverse effects in animals or cells. There is insufficient scientific evidence on the toxicity of e-cigarettes due to the lack of standardized research methods, prompting the need to conduct a comprehensive toxicity assessment of e-cigarette toxicity to elucidate the safety issues of e-cigarettes. Eventually, a basis for decision-making on whether people use e-cigarettes will be obtained.

Study Type : Review

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