Evidence map›Paper›PMID 23681797›Full record

SynthesisTumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine2013

Association between microsomal epoxide hydrolase 1 polymorphisms and susceptibility to esophageal cancer: a meta-analysis.

Weixin Zhao, Jianfeng Luo, Xuwei Cai

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

4 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. The association between the Arg280His polymorphism in the XRCC1 gene and the risk of hematological malignancies.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
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.

Weixin ZhaoDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China. weixinfudan@163.com
Jianfeng Luo
Xuwei Cai

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microsomal epoxide hydrolase 1 (EPHX1) plays an important role in the detoxification of carcinogenic polycyclic aromatic hydrocarbons. EPHX1 Tyr113His and His139Arg polymorphisms have been reported to have some impacts on the EPHX1 activity. Previous case-control studies assessing the associations between EPHX1 polymorphisms and esophageal cancer risk reported conflicting results. To quantitatively summarize the associations of EPHX1 Tyr113His and His139Arg polymorphisms with esophageal cancer risk, a systemic review and meta-analysis of published studies were performed. Published literatures from PubMed, Embase, and China National Knowledge Infrastructure databases were searched. The strength of the associations between EPHX1 polymorphisms and esophageal cancer risk was estimated by the pooled odds ratios (ORs) with its 95 % confidence interval (95 %CI). This meta-analysis yielded nine case-control studies, which included nine studies for Tyr113His polymorphism (1,291 cases and 2,120 controls) and seven studies for His139Arg polymorphism (899 cases and 1,615 controls). Overall, meta-analysis showed that EPHX1 Tyr113His polymorphism was not associated with esophageal cancer risk under all genetic models. Meta-analysis of these seven studies for EPHX1 His139Arg polymorphism showed that EPHX1 His139Arg polymorphism was also not associated with esophageal cancer risk under all genetic models. However, subgroup analysis by ethnicity further showed that there was an obvious association between EPHX1 His139Arg polymorphism and decreased risk of esophageal cancer in Caucasians (ArgArg versus HisArg/HisHis: OR = 0.52, 95 %CI 0.27-0.97, P = 0.041). This meta-analysis suggests that EPHX1 His139Arg polymorphism is associated with decreased risk of esophageal cancer in Caucasians. In addition, more studies with large samples are needed to get a more precise estimation on the associations mentioned above.

Indexed as

Case-Control StudiesEpoxide HydrolasesEsophageal NeoplasmsGenetic Predisposition to DiseaseGenotypeHumansPolymorphism, Single NucleotideRiskWhite PeopleEPHX1 protein, humanEpoxide Hydrolases

Identifiers

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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.