Evidence map›Paper›PMID 30390382›Full record

SynthesisThoracic cancer2019

Does hypermethylation of CpG island in the promoter region of the E-cadherin gene increase the risk of lung cancer? A meta-analysis.

Zhenfeng Sun, Gongzhe Liu, Ning Xu

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Thoracic cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

5 citing papers in PubMed, 6 citations in OpenAlex.

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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

3 authors at 2 institutions in 1 country.

Zhenfeng SunDepartment of Thoracic Surgery, Laiwu City People's Hospital, Laiwu, China.ORCID 0000-0003-4203-1780
Gongzhe LiuDepartment of Thoracic Surgery, Laiwu City People's Hospital, Laiwu, China.
Ning XuDepartment of Thoracic Surgery, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian, China.
Jinan City People's Hospital · CNDalian Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypermethylation of the CpG island in the promoter regions of tumor suppressor genes is common in the cancer tissue of non-small cell lung cancer (NSCLC) patients. Epithelial cadherin (E-cadherin) is a classic tumor suppressor gene of the cadherin superfamily and its promoter region is usually hypermethylated in malignant carcinomas. However, whether hypermethylation of the CpG island in the promoter region of E-cadherin increases the risk of lung cancer is unknown. We conducted a meta-analysis of E-cadherin gene promoter methylation status in cancer tissue (CT) and autologous controls (AC).

methodsElectronic databases were searched for E-cadherin gene promoter methylation and NSCLC. The hypermethylation status between CT and AC of NSCLC patients were compared and pooled by random or fixed effect models according to statistical heterogeneity across the included studies.

resultsEleven publications relevant to E-cadherin gene promoter hypermethylation and lung cancer risk were identified and included. E-cadherin gene promoter hypermethylation frequency in CT and AC was 0.32 (95% confidence interval [CI] 0.22-0.41) and 0.12 (95% CI 0.04-0.20), respectively, with statistical difference (P < 0.05). Significant statistical heterogeneity was found across the 11 studies (I

conclusionThe frequency of E-cadherin promoter hypermethylation in CT is significantly higher than in AC, indicating that promoter hypermethylation of E-cadherin plays an important role in NSCLC carcinogenesis.

Indexed as

CadherinsCarcinogenesisCpG IslandsDNA MethylationFemaleHumansLung NeoplasmsMalePromoter Regions, GeneticCadherinsCarcinoma of the lunghypermethylationmeta-analysisnon-small cell lung cancer

Identifiers

PMID30390382
PMCPMC6312839
OpenAlexW2898945671

What OpenQuestion holds

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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.