Evidence map›Paper›PMID 29384778›Full record

ArticleAnnals of surgery2019

Whole Genome Methylation Analysis of Nondysplastic Barrett Esophagus that Progresses to Invasive Cancer.

Mark P Dilworth, Tom Nieto, Jo D Stockton, Celina M Whalley, Louise Tee, Jonathan D James, Fergus Noble, Tim J Underwood, Michael T Hallissey, Rahul Hejmadi and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Annals of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
5.4field-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

10 citing papers in PubMed, 30 citations in OpenAlex.

  1. Biomarker Use in Barrett's Esophagus Surveillance.The American journal of gastroenterology · 2026
    Review
  2. Review
  3. Current Concepts for Diagnosing Non-Dysplastic and Dysplastic Barrett's Esophagus.Gastrointestinal endoscopy clinics of North America · 2026
    Review
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  5. 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

13 authors at 5 institutions in 1 country.

Mark P DilworthInstitute of Cancer and Genomic Science, University of Birmingham, UK.
Tom NietoInstitute of Cancer and Genomic Science, University of Birmingham, UK.
Jo D StocktonInstitute of Cancer and Genomic Science, University of Birmingham, UK.
Celina M WhalleyInstitute of Cancer and Genomic Science, University of Birmingham, UK.
Louise TeeInstitute of Cancer and Genomic Science, University of Birmingham, UK.
Jonathan D JamesInstitute of Cancer and Genomic Science, University of Birmingham, UK.
Fergus NobleCancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, UK.
Tim J UnderwoodCancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, UK.
Michael T HallisseyQueen Elizabeth Hospital, Birmingham, UK.
Rahul HejmadiInstitute of Cancer and Genomic Science, University of Birmingham, UK.
Nigel TrudgillSandwell and West Birmingham NHS Trust, Birmingham, UK.
Olga TuckerHeart of England NHS Trust, Birmingham, UK.
Andrew D BeggsInstitute of Cancer and Genomic Science, University of Birmingham, UK.
University of Birmingham · GBUniversity of Southampton · GBHeart of England NHS Foundation Trust · GBQueen Elizabeth Hospital Birmingham · GBSandwell & West Birmingham Hospitals NHS Trust · GB

Funding

Cancer Research UK 23924Cancer Research UK C10104/A23924Cancer Research UK C31641/A23923Medical Research Council G1002565Medical Research Council MR/M009157/1Medical Research Council MR/M016587/1Wellcome TrustWellcome Trust 102732/Z/13/Z
6 · The paper itself

Abstract

objectiveTo investigate differences in methylation between patients with nondysplastic Barrett esophagus who progress to invasive adenocarcinoma and those who do not.

backgroundIdentifying patients with nondysplastic Barrett esophagus who progress to invasive adenocarcinoma remains a challenge. Previous studies have demonstrated the potential utility of epigenetic markers for identifying this group.

methodsA whole genome methylation interrogation using the Illumina HumanMethylation 450 array of patients with nondysplastic Barrett esophagus who either develop adenocarcinoma or remain static, with validation of findings by bisulfite pyrosequencing.

resultsIn all, 12 patients with "progressive" versus 12 with "nonprogressive" nondysplastic Barrett esophagus were analyzed via methylation array. Forty-four methylation markers were identified that may be able to discriminate between nondysplastic Barrett esophagus that either progress to adenocarcinoma or remain static. Hypomethylation of the recently identified tumor suppressor OR3A4 (probe cg09890332) validated in a separate cohort of samples (median methylation in progressors 67.8% vs 96.7% in nonprogressors; P = 0.0001, z = 3.85, Wilcoxon rank-sum test) and was associated with the progression to adenocarcinoma. There were no differences in copy number between the 2 groups, but a global trend towards hypomethylation in the progressor group was observed.

conclusionHypomethylation of OR3A4 has the ability to risk stratify the patient with nondysplastic Barrett esophagus and may form the basis of a future surveillance program.

Indexed as

DNA MethylationAdenocarcinomaAdultBarrett EsophagusBiomarkers, TumorCase-Control StudiesComputational BiologyDatabases, FactualDisease ProgressionEsophageal NeoplasmsFemaleHigh-Throughput Nucleotide SequencingHumansImmunohistochemistryMaleMiddle AgedBiomarkers, Tumor

Identifiers

PMID29384778
PMCPMC6369874
OpenAlexW2950298168

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.