Evidence map›Paper›PMID 22629421›Full record

ArticlePloS one2012

Frequent occurrence of mitochondrial DNA mutations in Barrett's metaplasia without the presence of dysplasia.

Soong Lee, Moon-Jong Han, Ki-Sang Lee, Seung-Chul Back, David Hwang, Hwan-Young Kim, Jong-Hee Shin, Soon-Pal Suh, Dong-Wook Ryang, Hye-Ran Kim and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Biomarkers of Barrett's esophagus.World journal of gastrointestinal pathophysiology · 2014
    Review
  10. Predictive biomarkers for Barrett's esophagus: so near and yet so far.Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus · 2013
    Review
  11. Review
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.

Soong LeeDepartment of Internal Medicine, College of Medicine, Seonam University, Namwon, Korea.
Moon-Jong Han
Ki-Sang Lee
Seung-Chul Back
David Hwang
Hwan-Young Kim
Jong-Hee Shin
Soon-Pal Suh
Dong-Wook Ryang
Hye-Ran Kim
Myung-Geun Shin
Chonnam National University · KRSeonam University · KRChonnam National University Hwasun Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBarrett's esophagus (BE) is one of the most common premalignant lesions and can progress to esophageal adenocarcinoma (EA). The numerous molecular events may play a role in the neoplastic transformation of Barrett's mucosa such as the change of DNA ploidy, p53 mutation and alteration of adhesion molecules. However, the molecular mechanism of the progression of BE to EA remains unclear and most studies of mitochondrial DNA (mtDNA) mutations in BE have performed on BE with the presence of dysplasia. METHODS/

findingsThus, the current study is to investigate new molecular events (Barrett's esophageal tissue-specific-mtDNA alterations/instabilities) in mitochondrial genome and causative factors for their alterations using the corresponding adjacent normal mucosal tissue (NT) and tissue (BT) from 34 patients having Barrett's metaplasia without the presence of dysplasia. Eighteen patients (53%) exhibited mtDNA mutations which were not found in adjacent NT. mtDNA copy number was about 3 times higher in BT than in adjacent NT. The activity of the mitochondrial respiratory chain enzyme complexes in tissues from Barrett's metaplasia without the presence of dysplasia was impaired. Reactive oxygen species (ROS) level in BT was significantly higher than those in corresponding samples. CONCLUSION/SIGNIFICANCE: High ROS level in BT may contribute to the development of mtDNA mutations, which may play a crucial role in disease progression and tumorigenesis in BE.

Indexed as

MutationAdenocarcinomaBarrett EsophagusCell Transformation, NeoplasticDisease ProgressionDNA, MitochondrialEsophageal NeoplasmsEsophagusHumansHydrogen PeroxideMetaplasiaReactive Oxygen SpeciesDNA, MitochondrialHydrogen PeroxideReactive Oxygen Species

Identifiers

PMID22629421
PMCPMC3358277
OpenAlexW2000310409

What OpenQuestion holds

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LicenceCC BY
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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.