Evidence map›Paper›PMID 31996072›Full record

ArticleEpigenetics2020

Hypomethylation of LINE-1 repeat elements and global loss of DNA hydroxymethylation in vapers and smokers.

Andrew W Caliri, Amanda Caceres, Stella Tommasi, Ahmad Besaratinia

Open access · bronzeAbstract read
In one paragraph

Article in Epigenetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 6% 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

45 citing papers in PubMed, 2 syntheses or guidelines pooled it, 67 citations in OpenAlex.

  1. E-cigarettes and nicotine abstinence: a meta-analysis of randomised controlled trials.European respiratory review : an official journal of the European Respiratory Society · 2022
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  16. Epigenomic Dysregulation in Youth Vapers: Implications for Disease Risk Assessment.American journal of respiratory cell and molecular biology · 2025
    Article
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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

4 authors at 1 institution in 1 country.

Andrew W CaliriDepartment of Preventive Medicine, USC Keck School of Medicine, University of Southern California , Los Angeles, CA, USA.
Amanda CaceresDepartment of Preventive Medicine, USC Keck School of Medicine, University of Southern California , Los Angeles, CA, USA.
Stella TommasiDepartment of Preventive Medicine, USC Keck School of Medicine, University of Southern California , Los Angeles, CA, USA.
Ahmad BesaratiniaDepartment of Preventive Medicine, USC Keck School of Medicine, University of Southern California , Los Angeles, CA, USA.ORCID 0000-0001-7231-228X
University of Southern California · US

Funding

Genetic epigenetic & transcripotomic effects of e-cig aerosol on oral epitheliumR01DE026043 · NIDCR · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BESARATINIA, AHMAD · 2016 to 2019
$1.6M
Surveillance and health promotion informatics at workR01IP000051 · IP · CHILDREN'S HOSPITAL BOSTON · PI MANDL, KENNETH D · 2004 to 2005
–
NCIRD CDC HHS R01 IP000051NIDCR NIH HHS R01 DE026043
6 · The paper itself

Abstract

The outbreak of vaping-related severe lung injuries and deaths and the epidemic of teen vaping in the U.S. underscore the urgent need for determining the biological consequences of electronic cigarette (e-cig) use. We have investigated the association between vaping and epigenetic changes by quantifying DNA methylation levels in Long Interspersed Nucleotide Element 1 (LINE-1) and global DNA hydroxymethylation (5-hmC) levels and measuring the expression level of enzymes catalysing the respective processes in peripheral blood of exclusive vapers, smokers, and controls, matched for age, gender, and race ( ABBREVIATIONS: 5-mC: 5-methylcytosine; 5-hmC: 5-hydroxymethylcytosine; 8-OHdG: 8-hydroxy-2'-deoxyguanosine; ACTIN: actin beta; ANOVA: Analysis of Variance; BER: base excision repair; BMI: body mass index; CO: carbon monoxide; COHb: carboxyhaemoglobin; COBRA: combined bisulphite restriction analysis; COPD: chronic obstructive pulmonary disease; DNMT1: DNA methyltransferase 1; DNMT3A: DNA methyltransferase 3A; DNMT3B: DNA methyltransferase 3B; e-cigs: electronic cigarettes; ELISA: enzyme-linked immunosorbent assay; ENDS: electronic nicotine delivery systems; FDA: Food and Drug Administration; GAPDH; glyceraldehyde-3-phosphate dehydrogenase; HPLC: high-performance liquid chromatography; LINE-1: Long Interspersed Nucleotide Element 1; PBS: phosphate-buffered saline; RFU: relative fluorescence units; RT-qPCR: quantitative reverse-transcription polymerase chain reaction; ROS: reactive oxygen species; SAM,

Indexed as

DNA MethylationLong Interspersed Nucleotide Elements5-MethylcytosineAdultDNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3AFemaleHumansMaleMiddle AgedTobacco SmokingVaping5-hydroxymethylcytosine5-MethylcytosineDNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3ADNMT3A protein, humanDNA hydroxymethylationDNA methylationelectronic cigarettes (e-cigs)gene expressionvaping

Identifiers

PMID31996072
PMCPMC7518689
OpenAlexW3003312259

What OpenQuestion holds

Textmetadata
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.