Evidence map›Paper›PMID 23139769›Full record

SynthesisPloS one2012

CYP2E1 RsaI/PstI polymorphism and gastric cancer susceptibility: meta-analyses based on 24 case-control studies.

Wenlei Zhuo, Liang Zhang, Yan Wang, Junjun Ling, Bo Zhu, Zhengtang Chen

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. CYP2E1 T7632A and 9-bp insertion polymorphisms and colorectal cancer risk: a meta-analysis based on 4,592 cases and 5,918 controls.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2013
    Pooled it
  2. Article
  3. Article
  4. Association of Two CD44 Polymorphisms with Clinical Outcomes of Gastric Cancer PatientsAsian Pacific journal of cancer prevention : APJCP · 2018
    Article
  5. Article
  6. Article
  7. Article
  8. 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

6 authors at 3 institutions in 1 country.

Wenlei ZhuoInstitute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China. zhuowenlei@yahoo.com.cn
Liang Zhang
Yan Wang
Junjun Ling
Bo Zhu
Zhengtang Chen
Army Medical University · CNXinqiao Hospital · CNSouthwest Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious reports implicate CYP2E1 RsaI/PstI polymorphism as a possible risk factor for several cancers. Published studies on the relationship of CYP2E1 RsaI/PstI polymorphisms with the susceptibility to gastric cancer are controversial. This study aimed to determine this relationship accurately.

methodsMeta-analyses that assessed the association of CYP2E1 RsaI/PstI variations with gastric cancer were conducted. Subgroup analyses on ethnicity, smoking status, alcohol consumption, and source of controls were also performed. Eligible studies up to Mar 2012 were identified.

resultsAfter rigorous searching and screening, 24 case-control studies comprising 3022 cases and 4635 controls were selected for analysis. The overall data failed to indicate the significant associations of CYP2E1 RsaI/PstI polymorphisms with the gastric cancer risk [c2 vs. c1: odds ratio (OR) =1.06; 95% confidence interval (CI) =0.88-1.28; c2c2 vs. c1c1: OR=1.23; 95% CI=0.78-1.92; c2c2+c1c2 vs. c1c1: OR=0.93; 95% CI=0.79-1.10]. Similar results were observed in the subgroup analyses on ethnicity, drinking status, and source of controls. However, in the subgroup analysis on smoking status, a borderline increase in cancer risk was found among long-term smokers (c2c2+c1c2 vs. c1c1: OR=1.39; 95% CI=1.00-1.92).

conclusionCYP2E1 RsaI/PstI polymorphisms may modify the susceptibility to gastric cancer among individuals who have a smoking history. Large and well-designed studies are needed to confirm this conclusion.

Indexed as

Genetic Predisposition to DiseasePolymorphism, GeneticCase-Control StudiesCytochrome P-450 CYP2E1Deoxyribonucleases, Type II Site-SpecificGenetic HeterogeneityHumansPublication BiasSmokingStomach NeoplasmsCTGCAG-specific type II deoxyribonucleasesCytochrome P-450 CYP2E1Deoxyribonucleases, Type II Site-SpecificGTAC-specific type II deoxyribonucleases

Identifiers

PMID23139769
PMCPMC3489680
OpenAlexW2009636552

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.