Evidence map›Paper›PMID 21556759›Full record

ArticleMolecular biology reports2012

Polymorphisms and haplotypes in methylenetetrahydrofolate reductase gene and head and neck squamous cell carcinoma risk.

Ana Lívia Silva Galbiatti, Mariangela Torreglosa Ruiz, Juliana Olsen Rodrigues, Luiz Sérgio Raposo, José Victor Maníglia, Érika Cristina Pavarino, Eny Maria Goloni-Bertollo

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular biology reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

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

  1. Pooled it
  2. Pooled it
  3. Positive association between MTHFR C677T polymorphism and oral cancer risk: a meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  4. Pooled it
  5. Article
  6. Influence ofOpen life sciences · 2023
    Article
  7. Gene polymorphisms and risk of head and neck squamous cell carcinoma: a systematic review.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2022
    Review
  8. Association ofOncoTargets and therapy · 2017
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. 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.

Ana Lívia Silva GalbiattiGenetics and Molecular Biology Research Unit, UPGEM, São José do Rio Preto Medical School, São Paulo, Brazil. analivia_sg@yahoo.com.br
Mariangela Torreglosa Ruiz
Juliana Olsen Rodrigues
Luiz Sérgio Raposo
José Victor Maníglia
Érika Cristina Pavarino
Eny Maria Goloni-Bertollo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Functional polymorphisms in genes encoding enzymes involved in folate metabolism might modulate head and neck carcinoma risk because folate participates in DNA methylation and synthesis. We therefore conducted a case-control study of 853 individuals (322 head and neck cancer cases and 531 non-cancer controls) to investigate associations among MTHFR C677T and MTHFR A1298C polymorphisms and head and neck squamous cell carcinoma risk. Interactions between these two polymorphisms and risk factors and clinical histopathological parameters were also evaluated. The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique was used to genotype the polymorphisms and Chi-square test and multiple logistic regression were used for statistical analyses. The variables age≥49 years, male gender, tobacco habits and alcohol consumption, MTHFR 1298 AC or CC genotypes, combined genotypes with two or more polymorphic alleles and 677T and 1298C polymorphic alleles were associated with increased risk for this disease (P<0.05). Furthermore, we found that 1298 AC or CC genotypes were associated with age≥49 years, tobacco and alcohol habits (P<0.05). Regarding clinical histopathological parameters, the A1298C polymorphism was more frequent in patients with oral cavity as primary site (P<0.05). MTHFR polymorphisms may contribute for increase risk for head and neck carcinoma and the variables age≥49 years, male gender, tobacco and alcohol habits were associated with MTHFR 1298AC or CC genotypes, confirming that individuals with these variables and MTHFR A1298C polymorphism has higher risk for this disease.

Indexed as

Age FactorsAlcohol DrinkingBrazilCarcinoma, Squamous CellCase-Control StudiesDNA PrimersFemaleGenetic Association StudiesGenetic Predisposition to DiseaseGenotypeHaplotypesHead and Neck NeoplasmsHumansLogistic ModelsMaleMethylenetetrahydrofolate Reductase (NADPH2)DNA PrimersMethylenetetrahydrofolate Reductase (NADPH2)

Identifiers

What OpenQuestion holds

Textmetadata
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.