Evidence map›Paper›PMID 28931527›Full record

Trial reportJournal of the American Heart Association2017

Sympathomimetic Effects of Acute E-Cigarette Use: Role of Nicotine and Non-Nicotine Constituents.

Roya S Moheimani, May Bhetraratana, Kacey M Peters, Benjamin K Yang, Fen Yin, Jeffrey Gornbein, Jesus A Araujo, Holly R Middlekauff

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of the American Heart Association, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05707871 (Cardiovascular Effects of Very Low Nicotine Content Cigarettes), which is not on this map. Cited by 75 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05707871 early_phase1recruitingnot on this mapstarted 2023, after this paper: background citation

Cardiovascular Effects of Very Low Nicotine Content Cigarettes

TypeinterventionalSponsorWake Forest University Health SciencesRan2023 to 2026Enrolled49ConditionsTobacco UseArmsSPECTRUM cigarettes, usual brand of Cigarettes
3 · Its place in the literature

Who cites it

75 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Comparison of Acute Effects of E-cigarettes With and Without Nicotine and Tobacco Cigarettes on Hemodynamic and Endothelial Parameters: A Systematic Review and Meta-analysis.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2024
    Pooled it
  2. Cardiovascular autonomic effects of electronic cigarette use: a systematic review.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2020
    Pooled it
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  18. The respiratory epithelium in the era of vaping: insights fromEuropean respiratory review : an official journal of the European Respiratory Society · 2025
    Review
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  20. Article

15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Roya S MoheimaniDavid Geffen School of Medicine at UCLA, Los Angeles, CA.
May BhetraratanaDivision of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Kacey M PetersDivision of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Benjamin K YangDivision of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Fen YinDivision of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Jeffrey GornbeinDepartment of Biomathematics, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Jesus A AraujoDivision of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Holly R MiddlekauffDivision of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA hmiddlekauff@mednet.ucla.edu.

Funding

Training in Molecular ToxicologyT32ES015457 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ALLARD, PATRICK, HANKINSON, OLIVER NMN · 2008 to 2025
$4.0M
NIEHS NIH HHS T32 ES015457
6 · The paper itself

Abstract

backgroundChronic electronic (e) cigarette users have increased resting cardiac sympathetic nerve activity and increased susceptibility to oxidative stress. The purpose of the present study is to determine the role of nicotine versus non-nicotine constituents in e-cigarette emissions in causing these pathologies in otherwise healthy humans. METHODS AND

resultsThirty-three healthy volunteers who were not current e-cigarette or tobacco cigarette smokers were studied. On different days, each participant used an e-cigarette with nicotine, an e-cigarette without nicotine, or a sham control. Cardiac sympathetic nerve activity was determined by heart rate variability, and susceptibility to oxidative stress was determined by plasma paraoxonase activity. Following exposure to the e-cigarette with nicotine, but not to the e-cigarette without nicotine or the sham control, there was a significant and marked shift in cardiac sympathovagal balance towards sympathetic predominance. The decrease in high-frequency component and the increases in the low-frequency component and the low-frequency to high-frequency ratio were significantly greater following exposure to the e-cigarette with nicotine compared with exposure to the e-cigarette without nicotine or to sham control. Oxidative stress, as estimated by plasma paraoxonase, did not increase following any of the 3 exposures.

conclusionsThe acute sympathomimetic effect of e-cigarettes is attributable to the inhaled nicotine, not to non-nicotine constituents in e-cigarette aerosol, recapitulating the same heart rate variability pattern associated with increased cardiac risk in multiple populations with and without known cardiac disease. Evidence of oxidative stress, as estimated by plasma paraoxonase activity, was not uncovered following acute e-cigarette exposure.

Indexed as

Electronic Nicotine Delivery SystemsAdultCardiovascular DiseasesCross-Over StudiesFemaleGanglionic StimulantsHealthy VolunteersHeart RateHumansMaleMiddle AgedNicotineSmokingSympathetic Nervous SystemSympathomimeticsYoung AdultGanglionic StimulantsNicotineSympathomimeticselectronic cigarettesheart rate variabilitynicotineoxidant stresssympathetic nervous systemtobacco

Identifiers

PMID28931527
PMCPMC5634299

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.