Evidence map›Paper›PMID 23217001›Full record

SynthesisDiagnostic pathology2012

Association of MTHFR Ala222Val (rs1801133) polymorphism and breast cancer susceptibility: An update meta-analysis based on 51 research studies.

Liwa Yu, Jianqiu Chen

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Diagnostic pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 10 pooled it
3.4field-weighted citation impact, top 7% 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

30 citing papers in PubMed, 10 syntheses or guidelines pooled it, 44 citations in OpenAlex.

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  5. Associations between methylenetetrahydrofolate reductase polymorphisms and hepatocellular carcinoma risk in Chinese population.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
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  16. Plasma Levels of Homocysteine and the Occurrence and Progression of Rectal Cancer.Medical science monitor : international medical journal of experimental and clinical research · 2018
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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

2 authors at 2 institutions in 1 country.

Liwa YuDepartment of General Surgery, the Secondary Hospital of Tianjin Medical University, Tianjin 300211, China.
Jianqiu Chen
Tianjin Medical University · CNTianjin Medical University General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe association between MTHFR Ala222Val polymorphism and breast cancer (BC) risk are inconclusive. To derive a more precise estimation of the relationship, a systematic review and meta-analysis was performed.

methodsA comprehensive search was conducted through researching MEDLINE, EMBASE, PubMed, Web of Science, Chinese Biomedical Literature database (CBM) and China National Knowledge Infrastructure (CNKI) databases before August 2012. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to estimate the strength of the association.

resultsA total of 51 studies including 20,907 cases and 23,905 controls were involved in this meta-analysis. Overall, significant associations were found between MTHFR Ala222Val polymorphism and BC risk when all studies pooled into the meta-analysis (Ala/Ala vs Val/Val: OR=0.870, 95%CI=0.789-0.958,P=0.005; Ala/Val vs Val/Val: OR=0.895, 95%CI=0.821-0.976, P=0.012; dominant model: OR=0.882, 95%CI=0.808-0.963, P=0.005; and recessive model: OR = 0.944, 95%CI=0.898-0.993, P=0.026; Ala allele vs Val allele: OR = 0.935, 95%CI=0.887-0.986, P=0.013). In the subgroup analysis by ethnicity, the same results were found in Asian populations, while no significant associations were found for all comparison models in other Ethnicity populations.

conclusionIn conclusion, our meta-analysis provides the evidence that MTHFR Ala222Val gene polymorphisms contributed to the breast cancer development. VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1966146911851976.

Indexed as

Polymorphism, GeneticBreast NeoplasmsCase-Control StudiesChi-Square DistributionFemaleGenetic Predisposition to DiseaseHumansLinear ModelsMethylenetetrahydrofolate Reductase (NADPH2)Odds RatioPhenotypeRacial GroupsRisk AssessmentRisk FactorsMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, human

Identifiers

PMID23217001
PMCPMC3536596
OpenAlexW2128561460

What OpenQuestion holds

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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.