Evidence map›Paper›PMID 26884993›Full record

ArticleInternational journal of clinical and experimental medicine2015

The relationship between promoter methylation of p16 gene and bladder cancer risk: a meta-analysis.

Defeng Qi, Jinhui Li, Mei Jiang, Chenli Liu, Yuan Hu, Mengxi Li, Jialin Su, Biao Que, Weidong Ji

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
2.3field-weighted citation impact, top 11% 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

7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Archives of medical science : AMS · 2017
    Article
  6. Review
  7. Methylation of the suppressor of cytokine signaling 3 gene (SOCS3) in bladder cancer.International journal of clinical and experimental pathology · 2017
    Article
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

9 authors at 2 institutions in 1 country.

Defeng QiDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Jinhui LiDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Mei JiangDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Chenli LiuDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Yuan HuDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Mengxi LiDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Jialin SuDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Biao QueDepartment of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology Kangda Road 1#, Haizhu District, Guangzhou 510230, Guangdong, China.
Weidong JiThe First Affiliated Hospital, Center for Translational Medicine, Sun Yat-sen University Guangzhou, China.
First Affiliated Hospital of Guangzhou Medical University · CNSun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMany scientific evidences suggested that the methylation of p16INK4a (p16) was associated with bladder cancer, but some existing studies have yielded inconclusive results about the relationship between p16 promoter methylation and pathological features or the tumor grade of bladder cancer. This meta-analysis of studies aims to evaluate the clinical and prognostic significance of p16 methylation in bladder carcinogenesis.

methodsStudies were systemically searched via PubMed and Google Scholar in English up to Sept 2015 and a total of ten appropriate studies (693 cases and 290 controls) with an average NOS score of 6.8 were included. The quality of the appropriate studies was measured by the Newcastle-Ottawa Scale (NOS) assessment.

resultsThe meta-analysis results revealed that the methylation state of p16 was statistically significantly associated with an increased risk of bladder cancer (OR=6.71, 95% CI=3.79-11.87) compared to control, and there is no statistically significantly association between the p16 methylation and the tumor pTNM staging (OR=0.59, 95% CI=0.22-1.60) or the tumor grade (OR=1.01, 95% CI=0.52-1.94) in p16 methylated patients compared to unmethylated patients.

conclusionsour meta-analysis indicates that p16 promoter methylation may be a promising biomarker for the diagnosis of bladder cancer and the inactivation of p16 may be an early event in bladder carcinogenesis. More studies with larger numbers of participants worldwide are needed to further identify the obvious association above.

Indexed as

bladder cancermeta-analysismethylationp16

Identifiers

PMID26884993
PMCPMC4723838
OpenAlexW2472744187

What OpenQuestion holds

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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.