Evidence map›Paper›PMID 31456604›Full record

ArticleAerosol science and technology : the journal of the American Association for Aerosol Research2018

Electronic cigarette-generated aldehydes: The contribution of e-liquid components to their formation and the use of urinary aldehyde metabolites as biomarkers of exposure.

Daniel J Conklin, Mumiye A Ogunwale, Yizheng Chen, Whitney S Theis, Michael H Nantz, Xiao-An Fu, Lung-Chi Chen, Daniel W Riggs, Pawel Lorkiewicz, Aruni Bhatnagar and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Aerosol science and technology : the journal of the American Association for Aerosol Research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 4% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

68 citing papers in PubMed, 2 syntheses or guidelines pooled it, 110 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Review
  7. Review
  8. Influence of e-cigarettes and their constituents on cardiac rhythm and arrhythmias.American journal of physiology. Heart and circulatory physiology · 2026
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. High-throughput UPLC-ESI/MSMS method for simultaneous measurement of the urinary metabolites of volatile organic compounds and tobacco alkaloids.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2025
    Article
  18. Article
  19. Review
  20. Article

8 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

11 authors at 3 institutions in 1 country.

Daniel J ConklinAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Mumiye A OgunwaleDepartment of Chemistry, University of Louisville, Louisville, KY 40292.
Yizheng ChenDepartment of Chemical Engineering, University of Louisville, Louisville, KY 40292.
Whitney S TheisAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Michael H NantzAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Xiao-An FuAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Lung-Chi ChenAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Daniel W RiggsAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Pawel LorkiewiczAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Aruni BhatnagarAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
Sanjay SrivastavaAmerican Heart Association - Tobacco Regulation and Addiction Center, University of Louisville, Louisville, KY 40292.
University of Louisville · USAmerican Heart Association · USNew York University · US

Funding

Research Training and Education Core (Core D) P50HL120163 · NHLBI · AMERICAN HEART ASSOCIATION · PI BUTLER, JAVED · 2013 to 2017
$20.1M
ConProject-006U54HL120163 · NHLBI · AMERICAN HEART ASSOCIATION · PI BHATNAGAR, ARUNI, ROBERTSON, ROSE MARIE · 2018 to 2022
$18.8M
Superfund Training CoreP42ES023716 · NIEHS · UNIVERSITY OF LOUISVILLE · PI O'TOOLE, TIMOTHY E · 2017 to 2025
$18.1M
Project 5 - Metabolomic Analysis of AtherothrombosisP20GM103492 · NIGMS · UNIVERSITY OF LOUISVILLE · PI BABA, SHAHID P · 2012 to 2017
$13.8M
Cardiovascular Toxicity of Tobacco Products and ConstituentsR01HL122676 · NHLBI · UNIVERSITY OF LOUISVILLE · PI CONKLIN, DANIEL JOSEPH · 2015 to 2019
$3.7M
Tobacco Products and Atherosclerotic DiseaseR01HL120746 · NHLBI · UNIVERSITY OF LOUISVILLE · PI SRIVASTAVA, SANJAY · 2013 to 2017
$3.7M
NHLBI NIH HHS P50 HL120163NHLBI NIH HHS R01 HL120746NHLBI NIH HHS R01 HL122676NHLBI NIH HHS U54 HL120163NIEHS NIH HHS P42 ES023716NIGMS NIH HHS P20 GM103492
6 · The paper itself

Abstract

Electronic cigarettes (e-cigarette) have emerged as a popular electronic nicotine delivery system (ENDS) in the last decade. Despite the absence of combustion products and toxins such as carbon monoxide (CO) and tobacco-specific nitrosamines (TSNA), carbonyls including short-chain, toxic aldehydes have been detected in e-cigarette-derived aerosols up to levels found in tobacco smoke. Given the health concerns regarding exposures to toxic aldehydes, understanding both aldehyde generation in e-cigarette and e-cigarette exposure is critical. Thus, we measured aldehydes generated in aerosols derived from propylene glycol (PG):vegetable glycerin (VG) mixtures and from commercial e-liquids with flavorants using a state-of-the-art carbonyl trap and mass spectrometry. To track e-cigarette exposure in mice, we measured urinary metabolites of 4 aldehydes using ULPC-MS/MS or GC-MS. Aldehyde levels, regardless of abundance (saturated: formaldehyde, acetaldehyde >> unsaturated: acrolein, crotonaldehyde), were dependent on the PG:VG ratio and the presence of flavorants. The metabolites of 3 aldehydes - formate, acetate and 3-hydroxypropyl mercapturic acid (3-HPMA; acrolein metabolite) -- were increased in urine after e-cigarette aerosol and mainstream cigarette smoke (MCS) exposures, but the crotonaldehyde metabolite (3-hydroxy-1-methylpropylmercapturic acid, HPMMA) was increased only after MCS exposure. Interestingly, exposure to menthol-flavored e-cigarette aerosol increased the levels of urinary 3-HPMA and sum of nicotine exposure (nicotine, cotinine,

Indexed as

acetaldehydeacroleincrotonaldehydeformaldehydeglycerolpropylene glycol

Identifiers

PMID31456604
PMCPMC6711607
OpenAlexW2886147819

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.