Evidence map›Paper›PMID 31523170›Full record

ArticleInternational journal of medical sciences2019

Methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms in breast cancer: a Sardinian preliminary case-control study.

Paolo Castiglia, Valeria Sanna, Antonio Azara, Maria R De Miglio, Luciano Murgia, Giovanna Pira, Francesca Sanges, Alessandro Fancellu, Ciriaco Carru, Marco Bisail and 1 more

Open access · goldAbstract read
In one paragraph

Article in International journal of medical sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
3.7field-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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

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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

11 authors at 1 institution in 1 country.

Paolo CastigliaDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
Valeria SannaDivision of Medical Oncology, AOU Sassari, Via E. De Nicola - 07100 Sassari, Italy; Sassari, Italy.
Antonio AzaraDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
Maria R De MiglioDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
Luciano MurgiaDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
Giovanna PiraDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
Francesca SangesDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
Alessandro FancelluDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
Ciriaco CarruDepartment of Biomedical Sciences, University of Sassari, Viale San Pietro 43 - 07100 Sassari, Italy.
Marco BisailLILT, Sassari, Via Amendola, 40/L - 07100 Sassari, Italy.
Maria Rosaria MuroniDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4 - 07100 Sassari, Italy.
University of Sassari · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two common polymorphisms in the MTHFR gene, C677T and A1298C, are associated with reduced enzyme activity and may be associated with breast cancer susceptibility. We performed a case-control study to investigate the association between the two SNPs in the MTHFR gene and risk of breast cancer. In total, 58 breast cancer patients and 58 unaffected controls were enrolled in the study. Polymerase chain reaction/restriction fragment length polymorphism technique (PCR-RFLP) was conducted to determine the genotypes. No significant differences were found in the genotypes of the two polymorphisms of the MTHFR gene between cases and controls. The OR and 95% CI for the 677CC, 677CT and 677TT genotypes were 1.00, 0.95 (0.39-2.31) and 0.87 (0.27-2.80), respectively; those of the 1298AA, 1298AC and 1298CC genotypes were 1.00, 0.59 (0.26-1.36) and 0.78 (1.32-4.66) respectively. Furthermore, it has been shown in patients with breast cancer a risk of presenting with an aggressive biophenotype about twice or three times higher in the presence of the C677T and A1298C polymorphisms, respectively. Finally, the A1298Cpolymorphism is significantly associated with increased recurrence risk of lymph node-positive breast cancer. Our study has not shown a significant association between MTHFR gene polymorphisms and breast cancer risk. However, it highlighted the key-role played by the presence of mutant alleles for both polymorphisms in increasing the risk of developing more aggressive phenotypes; moreover, specifically in A1298C, it might also lead to a higher risk of developing lymph node metastasis.

Indexed as

Polymorphism, Single NucleotideAdultAgedBody Mass IndexBreast NeoplasmsCase-Control StudiesFemaleGenetic Predisposition to DiseaseHumansItalyLymphatic MetastasisMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, humanBreast cancer.FolateMethylenetetrahydrofolate reductase (MTHFR)PolymorphismsSNPs C677T and A1298C

Identifiers

PMID31523170
PMCPMC6743281
OpenAlexW2963291873

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.