Evidence map›Paper›PMID 23029458›Full record

SynthesisPloS one2012

Methylenetetrahydrofolate reductase C677T polymorphism and susceptibility to cervical cancer and cervical intraepithelial neoplasia: a meta-analysis.

Ya Li Luo, Ping Ye, Qiong Hua Zhang, Ting Ting Hu, Min Hong Luo, Mei Qing Li, Qing 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 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 25% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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

7 authors at 2 institutions in 1 country.

Ya Li LuoDepartment of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China.
Ping Ye
Qiong Hua Zhang
Ting Ting Hu
Min Hong Luo
Mei Qing Li
Qing Chen
Southern Medical University · CNHuazhong University of Science and Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA number of studies have explored the association between methyl enetetrahydrofolate reductase (MTHFR) C677T polymorphism and susceptibility to cervical cancer and cervical intraepithelial neoplasia (CIN). However, results remained controversial. To address this gap, we decided to conduct a meta-analysis of all available published studies.

methodsElectronic literature searches of the PubMed, EmBase and Medline databases were performed up to April 30, 2012. Fixed-effects or random-effects model was used to calculate the pooled ORs for different genetic models.

resultsA total of 12 case-control studies were ultimately identified. No statistical correlation was found between C677T variants and cervical cancer for the overall population. However, subgroup analyses on the White women pointed to a significant protective effect for individuals heterozygous or homozygous for the T-allele (for CT vs. CC: OR = 0.72, 95% CI 0.59-0.88; for TT vs. CC: OR = 0.69, 95% CI = 0.49-0.97; for CT+TT vs. CC: OR = 0.71, 95% CI 0.59-0.86). C677T variants were associated with neither combined nor stratified CIN among the overall population.

conclusionsThis meta-analysis suggests that White women with mutant C677T genotypes might have a lower risk of cervical cancer, yet lacking enough statistical robustness. Further investigations are needed to get more insight into the role of this polymorphism in cervical carcinogenesis.

Indexed as

Asian PeopleGenetic Predisposition to DiseasePolymorphism, Single NucleotideWhite PeopleAllelesCase-Control StudiesDatabases, BibliographicFemaleGene FrequencyHeterozygoteHomozygoteHumansMethylenetetrahydrofolate Reductase (NADPH2)Models, GeneticOdds RatioUterine Cervical DysplasiaMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, human

Identifiers

PMID23029458
PMCPMC3460879
OpenAlexW1968098284

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.