Evidence map›Paper›PMID 25170232›Full record

SynthesisWorld journal of gastroenterology2014

Methylenetetrahydrofolate reductase C677T and A1298C polymorphisms and gastric cancer susceptibility.

Lei-Zhou Xia, Yi Liu, Xiao-Zhou Xu, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Ke-Sen Xu, Hua Li

Open access · bronzeAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in World journal of gastroenterology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 5 pooled it
2.0field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 5 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  5. Association between the MTHFR C677T polymorphism and risk of cancer: evidence from 446 case-control studies.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Pooled it
  6. Influence ofOpen life sciences · 2023
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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

10 authors at 1 institution in 1 country.

Lei-Zhou XiaLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Yi LiuLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Xiao-Zhou XuLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Peng-Cheng JiangLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Gui MaLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Xue-Feng BuLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Yong-Jun ZhangLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Feng YuLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Ke-Sen XuLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
Hua LiLei-Zhou Xia, Peng-Cheng Jiang, Gui Ma, Xue-Feng Bu, Yong-Jun Zhang, Feng Yu, Hua Li, Department of General Surgery, Affiliated People's Hospital, Jiangsu University, Zhenjiang 212002, Jiangsu Province, China.
CAE (Canada) · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo identify the association between methylenetetrahydrofolate reductase (MTHFR) polymorphisms and gastric cancer (GC) susceptibility.

methodsSystematic searches were performed on the electronic databases PubMed, ISI, Web of knowledge, CNKI and Wanfang, as well as manual searching of the references of the identified articles. A total of 26 papers were included in this meta-analysis. Overall and subgroup analyses were performed. Odds ratio (OR) and 95%CI were used to evaluate the associations between MTHFR polymorphisms and GC risk. The I (2) statistics were used to evaluate between-study heterogeneity. Sensitivity analysis was also performed.

resultsIncreased risk was found for the MTHFR C677T polymorphism under four genetic models (TT + CT vs CC: OR = 1.23, P = 0.002; T vs C: OR = 1.15, P = 0.001; TT vs CC: OR = 1.37, P = 0.0005; TT vs CT + CC: OR = 1.17, P = 0.0008). Subgroup analysis by ethnicity suggested that C677T polymorphism conferred a risk of GC in eastern but not in western populations. Stratification by tumor site showed an association between the C677T polymorphism and gastric cardia cancer and non-cardia GC in the worldwide population and in eastern populations. Regardless of comparisons with controls or diffuse-type GC, a positive association was found for the C677T polymorphism and an increased risk of intestinal-type GC in the whole population and in western populations. With regard to the A1298C polymorphism, we found that genotype CC was significantly decreased and conferred protection against GC in eastern populations (CC vs AA: OR = 0.44, P = 0.03; CC vs AC + AA: OR = 0.46, P = 0.04).

conclusionMTHFR C677T polymorphism is a risk factor for GC, and the A1298C polymorphism may be a protective factor against GC in eastern populations.

Indexed as

Polymorphism, GeneticGene FrequencyGenetic Predisposition to DiseaseHumansMethylenetetrahydrofolate Reductase (NADPH2)Odds RatioPhenotypeProtective FactorsRisk AssessmentRisk FactorsStomach NeoplasmsMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, humanGastric cancerMeta-analysisMethylenetetrahydrofolate reductasePolymorphism

Identifiers

PMID25170232
PMCPMC4145786
OpenAlexW2020299878

What OpenQuestion holds

Textmetadata
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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.