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*Farsalinos, K., Lagoumintzis, G. Toxicity classification of e-cigarette flavouring compounds based on European Union regulation: analysis of findings from a recent study. Harm Reduct J 16, 48 (2019). doi: 10.1186/s12954-019-0318-2 | *Farsalinos, K., Lagoumintzis, G. Toxicity classification of e-cigarette flavouring compounds based on European Union regulation: analysis of findings from a recent study. Harm Reduct J 16, 48 (2019). doi: 10.1186/s12954-019-0318-2 | ||
*Acknowledgements: The authors report no conflict of interest for the past 36 months. For the past 60 months, KF has published 2 studies funded by the non-profit association AEMSA and 1 study funded by the non-profit association Tennessee Smoke-Free Association. | *Acknowledgements: The authors report no conflict of interest for the past 36 months. For the past 60 months, KF has published 2 studies funded by the non-profit association AEMSA and 1 study funded by the non-profit association Tennessee Smoke-Free Association. | ||
===2019 [https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0222152&fbclid=IwAR1Rqtl6D0eLtqU0-pqJ5vlSlLK2xlJk8rs0djo90oeUAwIdX9IgmYgByZY Effects of flavoring compounds used in electronic cigarette refill liquids on endothelial and vascular function]=== | |||
*Our data indicate that flavorings typically present in e-cig refill liquids do not cause endothelial dysfunction that would result in impaired vasodilation upon acute exposure. In contrast, most of the tested compounds caused endothelium-independent vasorelaxation, albeit at fairly high concentrations that appear to exceed by far the plasma concentrations expected to occur upon vaping flavored liquids. | |||
*[https://storage.googleapis.com/plos-corpus-prod/10.1371/journal.pone.0222152/1/pone.0222152.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&X-Goog-Credential=wombat-sa%40plos-prod.iam.gserviceaccount.com%2F20210106%2Fauto%2Fstorage%2Fgoog4_request&X-Goog-Date=20210106T115250Z&X-Goog-Expires=3600&X-Goog-SignedHeaders=host&X-Goog-Signature=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 PDF Version] | |||
*Citation: Wölkart G, Kollau A, Stessel H, Russwurm M, Koesling D, Schrammel A, et al. (2019) Effects of flavoring compounds used in electronic cigarette refill liquids on endothelial and vascular function. PLoS ONE 14(9): e0222152. https://doi.org/10.1371/journal.pone.0222152 | |||
*Acknowledgement: This work was supported by the Austrian Science Fund (FWF) grant [P24946] to BM. | |||
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*Citation: S. Costigan, C. Meredith, An approach to ingredient screening and toxicological risk assessment of flavours in e-liquids, Regulatory Toxicology and Pharmacology, Volume 72, Issue 2, 2015, Pages 361-369, ISSN 0273-2300, doi: 10.1016/j.yrtph.2015.05.018. | *Citation: S. Costigan, C. Meredith, An approach to ingredient screening and toxicological risk assessment of flavours in e-liquids, Regulatory Toxicology and Pharmacology, Volume 72, Issue 2, 2015, Pages 361-369, ISSN 0273-2300, doi: 10.1016/j.yrtph.2015.05.018. | ||
*Acknowledgements: This work was joint funded by Nicoventures and British American Tobacco (BAT), and the authors are full time employees of Nicoventures and British American Tobacco (BAT). | *Acknowledgements: This work was joint funded by Nicoventures and British American Tobacco (BAT), and the authors are full time employees of Nicoventures and British American Tobacco (BAT). | ||
===2013: [https://www.mdpi.com/1660-4601/10/10/5146/htm Comparison of the Cytotoxic Potential of Cigarette Smoke and Electronic Cigarette Vapour (Vapor) Extract on Cultured Myocardial Cells]=== | |||
*Smoking is an important risk factor for cardiovascular disease and cigarette smoke (CS) has well-established cytotoxic effects on myocardial cells. The purpose of this study was to evaluate the cytotoxic potential of the vapour of 20 EC (e-cigarette) liquid samples and a “base” liquid sample (50% glycerol and 50% propylene glycol, with no nicotine or flavourings) on cultured myocardial cells. Included were 4 samples produced by using cured tobacco leaves in order to extract the tobacco flavour. Methods: Cytotoxicity was tested according to the ISO 10993-5 standard. | |||
*In conclusion, from 20 commercially-available EC liquids that were tested in vapour form, four were found to be cytotoxic on cultured cardiomyoblasts. Cytotoxicity was mainly observed in most (but not all) samples produced by using tobacco leaves, while one sample using food-approved flavoring was marginally cytotoxic. EC vapour production by using higher-voltage devices caused a decrease in cell survival. Overall, EC vapour extracts showed significantly higher cell viability compared to CS extract, based on a realistic-use rather than a standardized comparative level of exposure. This supports the concept that ECs may be useful as tobacco harm reduction products. | |||
*[https://sci-hub.do/10.3390/ijerph10105146 PDF Version] | |||
*Citation: Farsalinos, K., Romagna, G., Allifranchini, E., Ripamonti, E., Bocchietto, E., Todeschi, S., … Voudris, V. (2013). Comparison of the Cytotoxic Potential of Cigarette Smoke and Electronic Cigarette Vapour Extract on Cultured Myocardial Cells. International Journal of Environmental Research and Public Health, 10(10), 5146–5162. doi:10.3390/ijerph10105146 | |||
*Acknowledgement: The study was funded in part by the Greek Association of E-cigarette Businesses (SEEHT). | |||
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*[https://sci-hub.st/10.1016/j.jadohealth.2012.09.014# PDF Version] | *[https://sci-hub.st/10.1016/j.jadohealth.2012.09.014# PDF Version] | ||
*Citation: Pepper, J. K., Reiter, P. L., McRee, A.-L., Cameron, L. D., Gilkey, M. B., & Brewer, N. T. (2013). Adolescent Males’ Awareness of and Willingness to Try Electronic Cigarettes. Journal of Adolescent Health, 52(2), 144–150. doi:10.1016/j.jadohealth.2012.09.014 | *Citation: Pepper, J. K., Reiter, P. L., McRee, A.-L., Cameron, L. D., Gilkey, M. B., & Brewer, N. T. (2013). Adolescent Males’ Awareness of and Willingness to Try Electronic Cigarettes. Journal of Adolescent Health, 52(2), 144–150. doi:10.1016/j.jadohealth.2012.09.014 | ||
*Acknowledgement: : Support for this study was provided by the American Cancer Society | *Acknowledgement: : Support for this study was provided by the American Cancer Society (MSRG-06-259-01-CPPB), the Cancer Control Education Program at UNC Lineberger Comprehensive Cancer Center (R25 CA57726), the National Institutes of Health (P50CA105632 and P30CA016058), and a NRSA in Primary Medical Care at the University of Minnesota (T32HP22239). | ||
(MSRG-06-259-01-CPPB), the Cancer Control Education Program at UNC Lineberger Comprehensive Cancer Center (R25 CA57726), the National Institutes of | |||
Health (P50CA105632 and P30CA016058), and a NRSA in Primary Medical Care | |||
at the University of Minnesota (T32HP22239). | |||
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