Evidence map›Paper›PMID 19960261›Full record

SynthesisDigestive diseases and sciences2010

Glutathione S-transferase T1 (GSTT1) gene polymorphism and gastric cancer susceptibility: a meta-analysis of epidemiologic studies.

Bo Chen, Lei Cao, Yong Zhou, Ping Yang, Hong-Wei Wan, Gui-Qing Jia, Liu Liu, Xiao-Ting Wu

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Digestive diseases and sciences, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 8 pooled it
2.6field-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

18 citing papers in PubMed, 8 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. An updated meta-analysis of transforming growth factor-β1 gene: three polymorphisms with gastric cancer.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  3. Pooled it
  4. GSTT1 null genotype contributes to increased risk of gastric cancer in Chinese population: evidence from a meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2013
    Pooled it
  5. Null genotype of glutathione S-transferase T1 contributes to increased risk of gastric cancer in Asian population.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2013
    Pooled it
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  9. Article
  10. TSH-β gene polymorphism in Saudi patients with thyroid cancer: A case-control study.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2022
    Article
  11. TLR4 Polymorphisms and Expression in Solid Cancers.Molecular diagnosis & therapy · 2018
    Review
  12. The Interaction betweenBioMed research international · 2017
    Article
  13. Association of DNA repair and xenobiotic pathway gene polymorphisms with genetic susceptibility to gastric cancer patients in West Bengal, India.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
  14. Article
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  17. Review
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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

8 authors at 2 institutions in 1 country.

Bo ChenDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
Lei Cao
Yong Zhou
Ping Yang
Hong-Wei Wan
Gui-Qing Jia
Liu Liu
Xiao-Ting Wu
Sichuan University · CNSecond Hospital of Anhui Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStudies investigating the association between genetic polymorphism of glutathione S-transferase T1 (GSTT1) and gastric cancer risk have reported conflicting results. Therefore, we conducted this meta-analysis to provide more precise evidence.

methodsWe searched the databases Medline, PubMed, Embase, and China National Knowledge Infrastructure up to July 30, 2009. Thirty-six studies with 4,357 gastric cancer cases and 9,796 controls were selected. Odds ratio (OR) and 95% confidence intervals (CI) were calculated based on fixed- and random-effects models.

resultsThe combined results based on all studies showed there was a significant link between GSTT1 null genotype and gastric cancer risk (OR = 1.14, 95%CI = 1.01-1.28). In subgroup analysis stratified on the basis of ethnic group, we also observed positive association between GSTT1 polymorphism and gastric cancer risk among Caucasians (non-Europeans + non-Americans), but not among East Asians. When stratifying by control source, the overall ORs for population- and hospital-based studies were 1.09 (95%CI = 0.94-1.28) and 1.17 (95%CI = 1.03-1.34), respectively. Subjects with both GSTM1 and GSTT1 negative genotypes had increased gastric cancer risk compared with those who had nonnull genotypes of both GST genes. Subgroup analyses for Helicobacter pylori infection and smoking habit did not reveal any significant association between GSTT1 polymorphism and gastric cancer development.

conclusionsThis meta-analysis suggests that GSTT1 gene polymorphism may be not associated with increased gastric cancer risk among Europeans, Americans, and East Asians. More large-scale studies based on the same racial group are needed.

Indexed as

Polymorphism, GeneticAsiaAsian PeopleCase-Control StudiesEuropeFemaleGene Expression Regulation, NeoplasticGenetic Predisposition to DiseaseGlutathione TransferaseHumansIncidenceMalePrognosisRisk AssessmentStomach NeoplasmsSurvival Analysisglutathione S-transferase T1Glutathione Transferase

Identifiers

PMID19960261
OpenAlexW1977196536

What OpenQuestion holds

Textmetadata
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.