Evidence map›Paper›PMID 27911277›Full record

SynthesisOncotarget2017

GSTM1 and GSTT1 polymorphisms are associated with increased bladder cancer risk: Evidence from updated meta-analysis.

Cui Yu, Chen Hequn, Liu Longfei, Wang Long, Chen Zhi, Zeng Feng, Chen Jinbo, Li Chao, Zu Xiongbing

Open access · diamondAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 19% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Significance ofClinical Medicine Insights. Oncology · 2025
    Article
  7. Article
  8. Review
  9. Article
  10. The androgen receptor in bladder cancer.Nature reviews. Urology · 2023
    Review
  11. Role of telomere length in human carcinogenesis (Review).International journal of oncology · 2023
    Review
  12. Article
  13. Review
  14. Review
  15. Systematic analysis of potential targets of the curcumin analog pentagamavunon-1 (PGV-1) in overcoming resistance of glioblastoma cells to bevacizumab.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2021
    Article
  16. Article
  17. Observational
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  19. Article
  20. 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.

Cui YuDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Chen HequnDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Liu LongfeiDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Wang LongDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Chen ZhiDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Zeng FengDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Chen JinboDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Li ChaoDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Zu XiongbingDepartment of Urology, Xiangya Hospital, Central South University, Changsha, Hunan 410000, China.
Central South University · CNXiangya Hospital Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have indicated association between GSTM1 and GSTT1 gene polymorphisms and bladder cancer susceptibility, but the results have been inconclusive. Here, we performed a meta-analysis to investigate the association between GSTM1/GSTT1 deletion polymorphisms and bladder cancer susceptibility.

methodsWe searched for all studies investigating the association between GSTM1 or GSTT1 polymorphism and bladder cancer susceptibility in Pubmed, Web of Knowledge, and the Cochrane Central Search Library. A systematic review and meta-analysis were performed. Subgroup analyses were performed on different ethnicity, population-based and smoking status.

resultsOur search identified 63 studies. GSTM1 null, GSTT1 null and GSTM1/GSTT1 double-null genotypes were associated with increased risk of bladder cancer (OR: 1.36 95% CI: 1.25-1.47, P<0.01; OR: 1.13 95% CI: 1.02-1.25, P<0.01; OR: 1.84 95% CI: 1.50-2.26, P<0.01). Subgroup analyses indicated that the GSTM1-null genotype was associated with increased risk of bladder cancer in Caucasians and Asians, while the GSTT1-null genotype was associated with increased risk of bladder cancer in Caucasians. The GSTM1/GSTT1 double-null genotype was associated with increased risk of bladder cancer in Caucasians, Asians, and Africans. Stratified analyses of population-based associations indicated increased bladder cancer risk associated with GSTM1-null and GSTM1/GSTT1 double-null genotypes in hospital-based and population-based studies. GSTM1 deletion was associated with increased bladder cancer risk in both smokers and nonsmokers. Non-smokers with the GSTM1/GSTT1 double-null genotype had an increased bladder cancer risk.

conclusionThis meta-analysis demonstrates that the GSTM1-null, GSTT1-null, and GSTM1/GSTT1 double-null genotypes are associated with increased bladder cancer risk.

Indexed as

Genetic Predisposition to DiseasePolymorphism, GeneticAllelesCase-Control StudiesGenotypeGlutathione TransferaseHumansOdds RatioPublication BiasRiskUrinary Bladder Neoplasmsglutathione S-transferase T1Glutathione Transferasebladder cancerGSTM1GSTT1polymorphism

Identifiers

PMID27911277
PMCPMC5356879
OpenAlexW2559338843

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.