Study finds reduced toxicity of ENDS compared to cigarettes.

Jul.18.2022
Study finds reduced toxicity of ENDS compared to cigarettes.
Researchers validated reliability of results. Inhalation of e-cigarette vapor caused less toxicity than cigarette smoke on human bronchial epithelial cells.

The research team established the reliability of their results through multiple methods. After exposing human bronchial epithelial cells (NCI-H292) to tobacco smoke and e-cigarette vapor, the researchers assessed the inflammatory cytokines interleukin-6 and interleukin-8, as well as the remodeling mediator matrix metalloproteinase-1.


Researchers have confirmed that nearly 80% of the cytotoxic effects are caused by volatile compounds in the smoke vapor phase. As a result, they found that the cytotoxic effects of ENDS aerosols are reduced. However, the data collected on smoke-induced inflammation and remodeling activity is vastly different from the original report. Considering independent data collected from multiple laboratories, the study confirms that the toxicity of ENDS is reduced compared to cigarettes.


I'm sorry, I cannot complete this task as there is no text provided in a foreign language for me to translate. Please provide the original text in a foreign language for me to translate. Thank you.



Disclaimer

This article is provided solely for professional research, industry discussion, and informational purposes. Any references to brands, companies, products, technologies, or policies are made for factual reporting and analytical purposes only, and do not constitute endorsement, recommendation, promotion, or advertising by 2Firsts.

Nicotine-containing products, including but not limited to cigarettes, e-cigarettes, heated tobacco products, and nicotine pouches, carry significant health risks. Readers are responsible for complying with all applicable laws and regulations in their respective jurisdictions, including age restrictions and access limitations.

The information contained in this article should not be regarded as investment, legal, medical, regulatory, or commercial advice. While 2Firsts strives to ensure the accuracy and reliability of its content, it does not assume liability for any direct or indirect loss arising from errors, omissions, inaccuracies, or reliance on the information contained herein.

This article is not intended for individuals below the legal age for accessing tobacco or nicotine-related information in their jurisdiction.

 

Copyright Notice

This article is either original content produced by 2Firsts or content reproduced, translated, summarized, or adapted from third-party sources with attribution where applicable. The intellectual property rights of the original content remain with 2Firsts or the respective original rights holders.

No individual or organization may copy, reproduce, distribute, republish, modify, translate, or otherwise use this content without prior authorization. Any unauthorized use may result in legal action.

For copyright-related inquiries, corrections, or removal requests, please contact: info@2firsts.com.

 

AI-Assisted Translation and Editing Notice

Portions of this article may have been translated, edited, or reviewed with the assistance of artificial intelligence tools to improve efficiency and readability. Due to the limitations of AI-assisted translation and editing, discrepancies, omissions, or inaccuracies may exist when compared with the original source.

Where applicable, readers are advised to refer to the original source for the most complete and accurate information. If you identify any errors or believe that any content infringes upon your rights, please contact us at info@2firsts.com, and we will review and address the matter promptly.

Gallery | InterTabac 2026 Opens as VAPORESSO, SKE, GREENTANK, GEEK BAR and Other Brands Take the Floor
Gallery | InterTabac 2026 Opens as VAPORESSO, SKE, GREENTANK, GEEK BAR and Other Brands Take the Floor
InterTabac 2026 opened in Dortmund, Germany, on September 15 alongside NUBIZ and InterSupply. According to the latest figures released by the organizer, the three trade shows bring together around 750 exhibitors from 64 countries. On site, 2Firsts observed vaping and related brands including VAPORESSO, DOJO, SKE, GREENTANK, GEEK BAR, HQD and ELUX.
Special Report
Sep.15
Special Report | Altria's NACS Booth Raises Questions Over U.S. Tobacco Advertising Warnings
Special Report | Altria's NACS Booth Raises Questions Over U.S. Tobacco Advertising Warnings
During its coverage of Altria's booth at NACS Show 2026, 2Firsts documented product displays that prompted questions about U.S. tobacco advertising warning requirements. Following public comments from a former FDA official, 2Firsts sought responses from Altria and independently consulted U.S. regulatory lawyer Azim Chowdhury. Altria maintained that its B2B communications complied with applicable laws, while Chowdhury explained that federal warning rules provide no general trade-show exemption for e-cigarettes and nicotine pouches. The special report examines the broader regulatory implications.
Nov.04
Texas Extends Tobacco Tax Interpretation to a 6-Methylnicotine Product, Citing VELO Ruling
Texas Extends Tobacco Tax Interpretation to a 6-Methylnicotine Product, Citing VELO Ruling
The Texas Comptroller of Public Accounts ruled in September 2026 that a combustible product made with non-tobacco plant material and 6-methylnicotine (6-MN), a synthetic nicotine analog, qualifies as a taxable tobacco product. The applicant said the product contained neither tobacco leaf nor measurable conventional nicotine. The determination applies reasoning from a May Texas Supreme Court decision involving VELO nicotine pouches, finding that the plant material and 6-MN together perform the functions of tobacco in a conventional smoking product. The ruling carries applicable tax, licensing and reporting obligations but is limited to the facts submitted by the taxpayer. It does not establish a blanket tax classification for all 6-MN products or extend the same conclusion to e-cigarettes.
Regulations
Nov.06
Smoke-Free Business Hits 42% of Q2 Net Revenue as PMI’s First TNFD Report Covers Single-Use Electronics, Critical Raw Materials and IQOS Repairs
Smoke-Free Business Hits 42% of Q2 Net Revenue as PMI’s First TNFD Report Covers Single-Use Electronics, Critical Raw Materials and IQOS Repairs
Philip Morris International has published its first report aligned with the Taskforce on Nature-related Financial Disclosures, bringing its electronics supply chain and the use and end-of-life stages of smoke-free devices and consumables into its nature-related assessment. PMI said its smoke-free business accounted for about 42% of total net revenues in the second quarter of 2026. The report says non-circular electronic products, particularly single-use items, can increase consumption of limited natural resources and also details an IQOS repair pilot. A 2040 circularity scenario tests assumptions including a 50% reduction in product waste-related costs, 10% raw-material savings and a 25% substitution rate for refurbished products versus new products.
Sep.23
Product | Four CrossBar 20K 13mL High-Puff Vapes Listed on Pennsylvania's ENDS Directory, Rated for Up to 20,000 Puffs
Product | Four CrossBar 20K 13mL High-Puff Vapes Listed on Pennsylvania's ENDS Directory, Rated for Up to 20,000 Puffs
Four CrossBar 20K disposable e-cigarettes appeared on Pennsylvania's 163-entry ENDS directory ahead of enforcement beginning October 19, 2026. The devices feature 13mL e-liquid reservoirs, 50mg/mL nicotine, 2,000mAh batteries and 0.9Ω mesh coils, with advertised puff counts of up to 20,000. CrossBar was the only modern high-puff disposable series among the directory's 15 disposable entries. Its packaging emphasizes New York design and Japanese-origin flavoring, while historical CrossBar records identify a registered U.S. tobacco manufacturing-related establishment. The link between the newer 13mL devices and earlier 1.3mL PMTA filings remains unconfirmed.
product
Oct.26
Altria’s USSTC Starts $250 Million Kentucky Expansion, Adding More Than 200 Jobs
Altria’s USSTC Starts $250 Million Kentucky Expansion, Adding More Than 200 Jobs
U.S. Smokeless Tobacco Company, an Altria Group company, has broken ground on an approximately $250 million manufacturing expansion in Hopkinsville, Kentucky. The roughly 270,000-square-foot facility is expected to create more than 200 jobs and absorb processing, manufacturing and packaging operations currently split between Hopkinsville and Nashville, Tennessee. USSTC previously said production at its Nashville facility is expected to wind down by early 2028. The project forms part of Altria’s broader effort to modernize and consolidate its U.S. smokeless tobacco manufacturing network.
Sep.10