The Potential Hazards of E-Cigarette and Dual Use: a Cochrane Systematic Review and Secondary Analysis

Dec.01.2022
The Potential Hazards of E-Cigarette and Dual Use: a Cochrane Systematic Review and Secondary Analysis
A study on Cochrane's systematic review found that switching from smoking to e-cigarettes significantly reduces potential harm biomarkers. However, a separate study found that using both traditional and e-cigarettes has the same harmful effect on the heart as smoking alone.

Title: Biomarkers of potential harm from switching from tobacco smoking to e-cigarette use, dual use or cessation: a Cochrane systematic review and meta-analysis of secondary analysis of data from randomized controlled trials of electronic cigarettes for smoking cessation. In this study, researchers conducted a secondary analysis of data from randomized controlled trials of electronic cigarettes for smoking cessation in Greece, Italy, Poland, the United Kingdom, and the United States. The conclusion drawn was that switching from tobacco smoking to e-cigarette use significantly lowered potential harmful biomarkers.


At the same time, according to a recent study published in the American Heart Association journal "Circulation," using both traditional cigarettes and e-cigarettes poses the same risk to the heart as smoking alone.


A study titled "Association Between Patterns of Cigarette and E-Cigarette Use and Inflammatory and Oxidative Stress Biomarker Levels in U.S. Adults: A Population Assessment of Tobacco and Health Study" analyzed more than 7,100 U.S. adults aged 18 and over to explore the connection between smoking, vaping, and heart health.


Researchers used data from the Population Assessment of Tobacco and Health (PATH) study to search for biomarkers of inflammation and oxidative stress, as these biomarkers are known to indicate predictive factors for heart disease and cardiovascular events, such as heart attacks and heart failure.


After analyzing five biomarkers of inflammation and oxidative stress, participants were divided into four groups: exclusive smokers, exclusive e-cigarette users, dual users, and non-users of e-cigarettes. Researchers listed the following findings:


Participants who only use electronic cigarettes showed similar levels of inflammation and oxidative stress as those who do not use electronic cigarettes or smoke at all. However, compared to participants who do not use cigarettes or electronic cigarettes, those who smoke exclusively or use both cigarettes and electronic cigarettes had higher levels of all evaluated biomarkers. Participants who only use electronic cigarettes had significantly lower levels of nearly all inflammation and oxidative stress biomarkers compared to those who only smoke. However, participants who use both cigarettes and electronic cigarettes had biomarker levels similar to those who exclusively smoke. 2FIRSTS will continue to report on this issue, with updates available on the "2FIRSTSAPP". Scan the QR code below to download the app.


This document has been generated through artificial intelligence translation and is provided solely for the purposes of industry discourse and learning. Please note that the intellectual property rights of the content belong to the original media source or author. Owing to certain limitations in the translation process, there may be discrepancies between the translated text and the original content. We recommend referring to the original source for complete accuracy. In case of any inaccuracies, we invite you to reach out to us with corrections. If you believe any content has infringed upon your rights, please contact us immediately for its removal.

UK reminds vaping firms to apply for new excise duty registration from April 2026
UK reminds vaping firms to apply for new excise duty registration from April 2026
HMRC has issued a reminder urging vaping manufacturers, importers and warehouse operators to prepare for registration under the UK’s new Vaping Products Duty, with applications opening in April 2026 and the duty taking effect in October.
Feb.10
Malaysia moves ahead with vape sales ban plan; PMI urges Japan-style differentiated excise taxes
Malaysia moves ahead with vape sales ban plan; PMI urges Japan-style differentiated excise taxes
Malaysia plans to implement a ban or restrictions on e-cigarettes and vaping products as early as mid-2026 and no later than year-end. The head of Philip Morris Malaysia and Singapore said the government should look to Japan’s approach of regulating and taxing different tobacco and nicotine products differently, warning that an outright ban could push demand into illicit channels.
Feb.02
Kentucky lawmaker proposes directing Juul settlement funds to youth vaping prevention
Kentucky lawmaker proposes directing Juul settlement funds to youth vaping prevention
A Kentucky state senator has filed Senate Bill 74 to steer settlement money the Commonwealth received from vaping manufacturer Juul Labs into youth vaping prevention and cessation efforts.
Jan.14 by 2FIRSTS.ai
Fiscal benefit, not health, strongest indicator for vape bans – Contributed by Samrat Chowdhery
Fiscal benefit, not health, strongest indicator for vape bans – Contributed by Samrat Chowdhery
Data shows 75% of nations with state stakes in tobacco trade ban modern substitutes compared to 10% in the free-market group. What is driving these divergent regulations?
Feb.04
Nicaragua’s Health Ministry reaffirms Resolution No. 334-2021, maintaining a total ban on vaping and e-cigarette sales
Nicaragua’s Health Ministry reaffirms Resolution No. 334-2021, maintaining a total ban on vaping and e-cigarette sales
Nicaragua’s Ministry of Health (MINSA) issued an official statement on January 2, 2026 reaffirming the validity of Ministerial Resolution No. 334-2021, which absolutely bans the use and commercialization of electronic nicotine delivery systems known as “vapeadores” or e-cigarettes.
Jan.04 by 2FIRSTS.ai
Ireland’s Tobacco and Vape Retail Licensing Regime Takes Effect; BAT Says It Should Cover Nicotine Pouches
Ireland’s Tobacco and Vape Retail Licensing Regime Takes Effect; BAT Says It Should Cover Nicotine Pouches
Ireland’s retail licensing system took effect on Feb. 2, 2026, charging annual fees per point of sale and enforced by the Health Service Executive (HSE). British American Tobacco’s local unit, BAT Ireland, said excluding nicotine pouches could leave a regulatory gap.
Feb.04 by 2FIRSTS.ai