Evidence map›Paper›PMID 33013432›Full record

ArticleFrontiers in physiology2020

E-Liquid Containing a Mixture of Coconut, Vanilla, and Cookie Flavors Causes Cellular Senescence and Dysregulated Repair in Pulmonary Fibroblasts: Implications on Premature Aging.

Joseph H Lucas, Thivanka Muthumalage, Qixin Wang, Michelle R Friedman, Alan E Friedman, Irfan Rahman

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pulmonary effects of e-liquid flavors: a systematic review.Journal of toxicology and environmental health. Part B, Critical reviews · 2022
    Pooled it
  2. Review
  3. Toxicity and Appeal of Flavoured E-Cigarettes and Flavour Ban Outcomes: A Narrative Review.International journal of environmental research and public health · 2026
    Review
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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 3 institutions in 1 country.

Joseph H LucasDepartment of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States.
Thivanka MuthumalageDepartment of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States.
Qixin WangDepartment of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States.
Michelle R FriedmanDepartment of Chemistry & Biochemistry, The College of Brockport, The State University of New York, New York, NY, United States.
Alan E FriedmanDepartment of Materials Design and Innovation, School of Engineering and Applied Sciences, University at Buffalo, Buffalo, NY, United States.
Irfan RahmanDepartment of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States.
University of Rochester Medical Center · USSUNY Brockport · USUniversity at Buffalo, State University of New York · US

Funding

Training in Environment ToxicologyT32ES007026 · NIEHS · UNIVERSITY OF ROCHESTER · PI Alison Elder, Marissa Sobolewski Terry · 1985 to 2026
$20.2M
NIEHS NIH HHS T32 ES007026
6 · The paper itself

Abstract

Electronic cigarette (e-cig) usage has risen dramatically worldwide over the past decade. While they are touted as a safe alternative to cigarettes, recent studies indicate that high levels of nicotine and flavoring chemicals present in e-cigs may still cause adverse health effects. We hypothesized that an e-liquid containing a mixture of tobacco, coconut, vanilla, and cookie flavors would induce senescence and disrupt wound healing processes in pulmonary fibroblasts. To test this hypothesis, we exposed pulmonary fibroblasts (HFL-1) to e-liquid at varying doses and assessed cytotoxicity, inflammation, senescence, and myofibroblast differentiation. We found that e-liquid exposure caused cytotoxicity, which was accompanied by an increase in IL-8 release in the conditioned media. E-liquid exposure resulted in elevated senescence-associated beta-galactosidase (SA-β-gal) activity. Transforming growth factor-β1 (TGF-β1) induced myofibroblast differentiation was inhibited by e-liquid exposure, resulting in decreased α-smooth muscle actin and fibronectin protein levels. Together, our data suggest that an e-liquid containing a mixture of flavors induces inflammation, senescence and dysregulated wound healing responses.

Indexed as

e-cigarettee-liquidextracellular matrixsenescencewound healing

Identifiers

PMID33013432
PMCPMC7500211
OpenAlexW3083470562

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.