Evidence map›Paper›PMID 33360165›Full record

ArticleEnvironment international2021

Metabolome-wide association study of flavorant vanillin exposure in bronchial epithelial cells reveals disease-related perturbations in metabolism.

Matthew Ryan Smith, Zachery R Jarrell, Michael Orr, Ken H Liu, Young-Mi Go, Dean P Jones

Open access · goldAbstract read
In one paragraph

Article in Environment international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 34% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. E-Cigarette or Vaping Product Use-Associated Lung Injury: A Comprehensive Review.International journal of environmental research and public health · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Mitochondrial HCirculation research · 2022
    Article
  14. Effects of E-Cigarette Flavoring Chemicals on Human Macrophages and Bronchial Epithelial Cells.International journal of environmental research and public health · 2021
    Article
  15. Article
  16. Article
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

6 authors at 2 institutions in 1 country.

Matthew Ryan SmithDivision of Pulmonary, Allergy and Critical Care Medicine, Emory University, Atlanta, GA 30322, USA.
Zachery R JarrellDivision of Pulmonary, Allergy and Critical Care Medicine, Emory University, Atlanta, GA 30322, USA.
Michael OrrDivision of Pulmonary, Allergy and Critical Care Medicine, Emory University, Atlanta, GA 30322, USA.
Ken H LiuDivision of Pulmonary, Allergy and Critical Care Medicine, Emory University, Atlanta, GA 30322, USA.
Young-Mi GoDivision of Pulmonary, Allergy and Critical Care Medicine, Emory University, Atlanta, GA 30322, USA. Electronic address: ygo@emory.edu.
Dean P JonesDivision of Pulmonary, Allergy and Critical Care Medicine, Emory University, Atlanta, GA 30322, USA. Electronic address: dpjones@emory.edu.
Emory University · USEmory Healthcare · US

Funding

Pilot Project ProgramP30ES019776 · NIEHS · EMORY UNIVERSITY · PI William Michael Caudle · 2013 to 2026
$22.6M
Graduate and Postdoctoral Training in ToxicologyT32ES012870 · NIEHS · EMORY UNIVERSITY · PI Carmen Joseph Marsit · 2004 to 2026
$9.1M
U2C Experimental CoreU2CES030163 · NIEHS · EMORY UNIVERSITY · PI JONES, DEAN PAUL, LI, SHUZHAO · 2018 to 2021
$3.6M
Cytoplasmic-nuclear redox signaling: Disruption by dietary cadmium levelsR01ES023485 · NIEHS · EMORY UNIVERSITY · PI GO KANG, YOUNG-MI, JONES, DEAN PAUL · 2014 to 2018
$1.8M
Orbitrap Elite/H-ESI BundleS10OD018006 · OD · EMORY UNIVERSITY · PI JONES, DEAN PAUL · 2014 to 2014
$600k
Vanadium in lung mitochondria oxidative stressR21ES031824 · NIEHS · EMORY UNIVERSITY · PI GO KANG, YOUNG-MI, JONES, DEAN PAUL · 2020 to 2021
$429k
NIEHS NIH HHS P30 ES019776NIEHS NIH HHS R01 ES023485NIEHS NIH HHS R21 ES031824NIEHS NIH HHS T32 ES012870NIEHS NIH HHS U2C ES030163NIH HHS S10 OD018006
6 · The paper itself

Abstract

Electronic cigarettes (e-cig) are an increasingly popular alternative to traditional smoking but have been in use for too short of a period of time to fully understand health risks. Furthermore, associated health risks are difficult to evaluate because of a large range of flavoring agents and their combinations for use with e-cig. Many flavoring agents are generally regarded as safe but have limited studies for effects on lung. Vanillin, an aromatic aldehyde, is one of the most commonly used flavoring agents in e-cig. Vanillin is electrophilic and can be redox active, with chemical properties expected to interact within biologic systems. Because accumulating lung metabolomics studies have identified metabolic disruptions associated with idiopathic pulmonary fibrosis, asthma and acute respiratory distress syndrome, we used human bronchial epithelial cells (BEAS-2B) with high-resolution metabolomics analysis to determine whether these disease-associated pathways are impacted by vanillin over the range used in e-cig. A metabolome-wide association study showed that vanillin perturbed specific energy, amino acid, antioxidant and sphingolipid pathways previously associated with human disease. Analysis of a small publicly available human dataset showed associations with several of the same pathways. Because vanillin is a common and high-abundance flavorant in e-cig, these results show that vanillin has potential to be mechanistically important in lung diseases and warrants in vivo toxicity testing in the context of e-cig use.

Indexed as

Electronic Nicotine Delivery SystemsBenzaldehydesEpithelial CellsFlavoring AgentsHumansMetabolomeBenzaldehydesFlavoring AgentsvanillinElectronic cigarettesFlavoring agentsHigh-resolution metabolomicsMetabolic disruptionOxidative stress

Identifiers

PMID33360165
PMCPMC7856097
OpenAlexW3118031282

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.