Switching to E-Cigarettes and Heated Tobacco Products Reduces Vascular Damage and Smoking-Related Illnesses: Study

Aug.16.2022
Switching to E-Cigarettes and Heated Tobacco Products Reduces Vascular Damage and Smoking-Related Illnesses: Study
CoEHAR researchers found using e-cigarettes and heated tobacco products can reduce smoking-related diseases. Their study challenges misconceptions about vaping.

Researchers from the Center of Excellence for the Acceleration of Harm Reduction (CoEHAR) involved in the Replica project have discovered that switching to electronic cigarettes and heated tobacco products can reduce the incidence of vascular damage and smoking-related diseases. The findings challenge the prevailing misconception that using e-cigarettes and heated tobacco products is just as harmful as smoking.


The study has been published by an independent laboratory affiliated with the Replica Project, whose scientists are world leaders in harm reduction. The latest research assessed the damage caused to endothelial cells, which release substances that control the dilation and contraction of blood vessels, by cigarette smoke compared to electronic cigarettes and heated tobacco products.


Damage to the inner lining of blood vessels known as endothelial damage is a primary pathology that leads to diseases such as atherosclerosis, with smoking being the main culprit. Smoking can impair the normal function of the endothelium, cause damage to the vascular system, and lead to the development of high blood pressure and atherosclerosis. Smoking and exposure to smoke toxins are related to the impairment of the repair mechanism needed for endothelial homeostasis, such as the inhibition of endothelial cell migration.


Reducing exposure to smoke toxins may mitigate the harmful effects on endothelial and cardiovascular disease development. Numerous international studies have investigated the impact of smoking on endothelial cell migration and associated vascular damage, particularly a study by Taylor et al. (2017). Compared to cigarette smoke, exposure to electronic cigarette aerosol significantly reduces inhibition of in vitro (in a test tube) endothelial cell migration. This means that endothelial cells exposed to electronic cigarette aerosol retain their ability to effectively heal small wounds in blood vessels, unlike those exposed to cigarette smoke and toxins, which severely limit their wound repair capacity.


One of CoEHAR's most successful projects is the Replica project, in which researchers have replicated some of the most significant international studies in the field of reducing tobacco harm via an independent laboratory network. They have demonstrated a reduction in the toxicity of electronic cigarettes and have established reference standards for scientific research. The goal of CoEHAR's scientists is to conduct a multicenter replication study to validate the results of Taylor and his colleagues.


A study titled "Comparative evaluation of e-cigarette aerosol and cigarette smoke on endothelial cell migration: a replication study" compared the effects of three commercial e-cigarette delivery systems and traditional cigarettes. Following international scientific standards and utilizing the latest technology and tools, the data collected by researchers at CoEHAR confirmed the findings of Taylor and colleagues: e-cigarettes do not induce inhibition of endothelial cell migration in vitro compared to cigarette smoke, thus reducing harm caused by tobacco smoke. Furthermore, CoEHAR researchers compared the results of two different heated tobacco products, which demonstrated significantly less impact than observed with cigarette smoke.


According to Professor Massimo Caruso, co-project leader of the Replica initiative, "As previously demonstrated by the Replica research team, the harm caused by electronic nicotine delivery systems is significantly lower than the harm caused by cigarette smoke. An interesting fact is that using non-combustible products can reduce vascular damage and prevent the likelihood of smoking-related diseases such as atherosclerosis and hypertension. Our research once again challenges the notion that electronic cigarettes or heated tobacco will cause similar damage to combustible cigarettes.


Statement:


This article is compiled from third-party information and is only meant for industry-related communication and learning purposes.


This article does not represent the views of 2FIRSTS and 2FIRSTS cannot confirm the truthfulness and accuracy of its content. The translation of this article is only intended for industry exchange and research.


Due to limitations in the translation process, the translated article may not fully reflect the original expression. Therefore, please refer to the original article for accuracy.


2FIRSTS is fully aligned with the Chinese government on any domestic, Hong Kong, Macau, Taiwan, and foreign-related statements and positions.


The compilation of information is subject to the copyright ownership of the original media outlet and author. If there is any infringement, please contact us to request removal.



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.

U.S. Rep. Krishnamoorthi Questions FDA Over Planned PMTA Rewrite, Seeks Communications With Altria and Reynolds
U.S. Rep. Krishnamoorthi Questions FDA Over Planned PMTA Rewrite, Seeks Communications With Altria and Reynolds
U.S. Rep. Raja Krishnamoorthi on Oct. 6 questioned the FDA over its plan to reassess and potentially replace the 2021 PMTA regulatory framework, asking the agency to identify provisions it may change or eliminate, state whether current scientific evidentiary standards will be maintained, and disclose communications with Altria, Reynolds and other parties challenging the rule. Krishnamoorthi led a congressional investigation into JUUL and youth vaping in 2019 and has since remained active on e-cigarette regulation and enforcement.
Regulations
Oct.08
PMI CEO Attends Opening of IQOS Global Flagship in Tokyo’s Ginza as 1,814 Limited ILUMA i PRIME Sets Launch
PMI CEO Attends Opening of IQOS Global Flagship in Tokyo’s Ginza as 1,814 Limited ILUMA i PRIME Sets Launch
IQOS opened its first global flagship, IQOS Flagship Ginza, in Tokyo on September 4, 2026, replacing the former IQOS Store Ginza after nearly a decade of operation. The new location expands conventional product retail into member lounges, digital experiences, art installations and brand programming. IQOS also launched a Ginza-exclusive IQOS ILUMA i PRIME set limited to 1,814 individually numbered units, priced at JPY11,980, or about US$77. PMI Sales Strategy Consultant Yuji M. later said on LinkedIn that more than 500 people had lined up from the night before the opening.
Sep.07
On-Site Report | After FDA Announces Review of PMTA Framework, CTP Director Details Reform Priorities
On-Site Report | After FDA Announces Review of PMTA Framework, CTP Director Details Reform Priorities
FDA CTP Director Bret Koplow used his FDLI keynote in Washington to outline how the agency is rethinking the PMTA framework. He discussed category-specific review, nicotine pouch and sPMTA pilots, AI-assisted review, a 70% reduction in pending applications, and a major staffing constraint: CTP currently has only nine scientific review teams. He also reaffirmed tobacco harm reduction while stressing youth protection, flavored products, risk communication, and the challenge of unauthorized e-cigarettes.
Regulations
Oct.06
Italian Financial Police Seize 4.3 Million E-Cigarettes and Smoking Accessories; 28 Reported to Judicial Authorities Across Operations
Italian Financial Police Seize 4.3 Million E-Cigarettes and Smoking Accessories; 28 Reported to Judicial Authorities Across Operations
Italy's Guardia di Finanza announced on October 28 that officers in Latina province had seized approximately 4.3 million e-cigarettes and smoking accessories at an unauthorized warehouse in an operation involving restrictions on the possession and sale of tobacco-related products. Another 300,000 suspected counterfeit or unsafe items were confiscated during separate inspections, bringing total seizures across the operations to more than 4.6 million products. Twenty-eight people were reported to judicial authorities over suspected smuggling and counterfeiting offenses. Officials did not disclose separate vape quantities, the value of the merchandise or alleged violations associated with individual brands.
Enforcement
Oct.29
JUUL2 Sued Within a Week of FDA Authorization as AJ Marketing Alleges Infringement of Programmable Vape Patent
JUUL2 Sued Within a Week of FDA Authorization as AJ Marketing Alleges Infringement of Programmable Vape Patent
Less than a week after JUUL2 received U.S. FDA marketing authorization on August 28, 2026, JUUL Labs was sued for patent infringement in federal court in Delaware. AJ Marketing LLC filed the complaint on September 3, alleging that both JUUL 1 and JUUL2 infringe U.S. Patent No. 8,851,068 B2. The patent covers aspects of programmable electronic vaporization devices, including controls over dose delivery, usage frequency and operating parameters. The plaintiff is seeking reasonable royalties and ongoing royalties tied to the remaining life of the patent. JUUL has not yet publicly responded to the case.
Sep.10
China Tobacco Hubei explores staged nicotine pouch delivery, using dynamic membranes to slow early release and gradient particles to sustain later delivery
China Tobacco Hubei explores staged nicotine pouch delivery, using dynamic membranes to slow early release and gradient particles to sustain later delivery
China Tobacco Hubei Industrial Co., Ltd. disclosed several oral nicotine-related patent applications in August 2026, including two that approach staged nicotine release from different directions. One uses a high-viscosity membrane that forms inside the pouch after contact with saliva to slow rapid early release, while the other uses gradient particles with a faster-disintegrating outer layer and a slower core to create a fast-to-sustained release profile. Together, the filings explore how nicotine pouches could balance initial delivery with release later in use.
Sep.03