Myth: Vaping causes Popcorn Lung: Difference between revisions

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Harvard T.H. Chan School of Public Health issued a press release about the study, "[https://www.hsph.harvard.edu/news/press-releases/e-cigarette-flavoring-chemicals-linked-to-respiratory-disease/ Chemicals linked with severe respiratory disease found in common e-cigarette flavors]" (Link saved on [https://web.archive.org/web/20151212202826/https://www.hsph.harvard.edu/news/press-releases/e-cigarette-flavoring-chemicals-linked-to-respiratory-disease/ Wayback Machine]). While the safety of e-cigarettes does need to be monitored, the study and the press release did not compare the levels of the chemicals found to what is inhaled from smoking a combustible cigarette. Neither the paper nor the press release said people will get Popcorn Lung from vaping. They just raised concern about the possibility.
Harvard T.H. Chan School of Public Health issued a press release about the study, "[https://www.hsph.harvard.edu/news/press-releases/e-cigarette-flavoring-chemicals-linked-to-respiratory-disease/ Chemicals linked with severe respiratory disease found in common e-cigarette flavors]" (Link saved on [https://web.archive.org/web/20151212202826/https://www.hsph.harvard.edu/news/press-releases/e-cigarette-flavoring-chemicals-linked-to-respiratory-disease/ Wayback Machine]). While the safety of e-cigarettes does need to be monitored, the study and the press release did not compare the levels of the chemicals found to what is inhaled from smoking a combustible cigarette. Neither the paper nor the press release said people will get Popcorn Lung from vaping. They just raised concern about the possibility.


Carrie Arnold [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892907/ commented] on this study and said, "this study did not assess levels of diacetyl, 2,3-pentanedione, and acetoin in actual users, much less health effects. So it’s premature to assume that exposure to these chemicals via e-cigarettes causes health problems."  
Dr. Farsalinos is strongly opposed to the use of Diacetyl in e-liquids. He is [http://www.ecigarette-research.org/research/index.php/whats-new/whatsnew-2015/236-da2 concerned] about the study because "the article is creating false impressions and exaggerates the potential risk from diacetyl and acetyl propionyl exposure through e-cigarettes. They failed to mention that these chemicals are present in tobacco cigarette smoke and violated a classical toxicological principle that the amount determines the toxicity and the risk."


Dr. Brad Rodu has concerns about the methods used in this study and said in his [https://rodutobaccotruth.blogspot.com/2015/12/is-harvard-e-cigarette-buttery-flavor.html blog], "As I advised previously, vapers should only use liquids that are certified to be free of buttery flavors that are suspected respiratory toxicants.  However, laboratory investigations of e-cigarettes should use validated methods to assure credibility.  The results of the Harvard Buttery Flavor Study do not meet this standard."
Dr. Brad Rodu has concerns about the methods used in this study and said in his [https://rodutobaccotruth.blogspot.com/2015/12/is-harvard-e-cigarette-buttery-flavor.html blog], "As I advised previously, vapers should only use liquids that are certified to be free of buttery flavors that are suspected respiratory toxicants.  However, laboratory investigations of e-cigarettes should use validated methods to assure credibility.  The results of the Harvard Buttery Flavor Study do not meet this standard."
Carrie Arnold [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892907/ commented] on this study and said, "this study did not assess levels of diacetyl, 2,3-pentanedione, and acetoin in actual users, much less health effects. So it’s premature to assume that exposure to these chemicals via e-cigarettes causes health problems."


The study and alarm over the potential danger of vaping made headlines across the US and globally. Most of the articles failed to mention there are [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892705/ more] of these chemicals in [https://erj.ersjournals.com/content/53/2/1801151 combustible cigarettes], and there are no [https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/684963/Evidence_review_of_e-cigarettes_and_heated_tobacco_products_2018.pdf documented] cases of Popcorn Lung being caused by [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892932/ smoking] or [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5693960/ vaping].  
The study and alarm over the potential danger of vaping made headlines across the US and globally. Most of the articles failed to mention there are [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892705/ more] of these chemicals in [https://erj.ersjournals.com/content/53/2/1801151 combustible cigarettes], and there are no [https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/684963/Evidence_review_of_e-cigarettes_and_heated_tobacco_products_2018.pdf documented] cases of Popcorn Lung being caused by [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4892932/ smoking] or [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5693960/ vaping].