Evidence map›Paper›PMID 15068389›Full record

ArticleMolecular diagnosis : a journal devoted to the understanding of human disease through the clinical application of molecular biology2003

Genotyping of the MTHFR gene polymorphism, C677T in patients with leukemia by melting curve analysis.

Ugur Deligezer, Ebru Akisik, Nejat Dalay

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In one paragraph

Article in Molecular diagnosis : a journal devoted to the understanding of human disease through the clinical application of molecular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 5 pooled it
1.2field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 5 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Association between MTHFR C677T polymorphism and risk of acute lymphoblastic leukemia: a meta-analysis based on 51 case-control studies.Medical science monitor : international medical journal of experimental and clinical research · 2015
    Pooled it
  2. MTHFR genetic polymorphisms may contribute to the risk of chronic myelogenous leukemia in adults: a meta-analysis of 12 genetic association studies.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
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  8. MTHFR C677 T gene polymorphism in lymphoproliferative diseases.Journal of clinical laboratory analysis · 2006
    Article
  9. Review
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

3 authors at 1 institution in 1 country.

Ugur DeligezerDepartment of Basic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey.
Ebru Akisik
Nejat Dalay
Istanbul University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMethylenetetrahydrofolate reductase (MTHFR) plays a critical role in folate metabolism and displays common genetic polymorphisms affecting the enzyme activity. The MTHFR genetic polymorphisms have been associated with a decrease in the risk of developing the lymphoid but not myeloid form of pediatric and adult leukemias.

aimIn this study we describe the genotyping of the MTHFR C677T polymorphism by melting curve analysis with the LightCycler in a case-controlled study of patients with acute lymphocytic leukemia (ALL), myelogenous leukemia (AML), and chronic myelogenous leukemia (CML), and assess the effect of this common polymorphism on the leukemia risk in adult patients in Turkey.

methodsDNA from peripheral blood lymphocytes was used for genotyping in the LightCycler PCR by melting curve analysis. The risk of leukemia associated with the MTHFR polymorphism was evaluated by comparing the genotype frequencies between the control and patient groups.

resultsThe frequency of the homozygote variant genotype (677TT) was lower than that in healthy individuals in all three leukemia groups. The 677TT genotype did not appear to have a protective effect in patients with ALL (Odds ratio [OR] = 0.78 with a 95% confidence interval [CI] = 0.24-2.59), compared with healthy controls. The difference was higher (4.3-fold) in patients with AML, but still non-significant (OR = 0.23 with a 95% CI = 0.03-1.83). In patients with CML, the frequencies of both heterozygous (677CT) and homozygote variant genotypes were lower (OR = 0.72 and 0.66, respectively).

conclusionsOur results suggest that the MTHFR C677T polymorphism displays a similar distribution pattern in lymphoid and myeloid leukemias and that the frequency of the homozygote variant genotype (677TT) is lower in all leukemia types.

Indexed as

AdolescentAdultAgedBase SequenceDNA, NeoplasmDNA PrimersFemaleGenetic VariationGenotypeHumansLeukemiaMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedNucleic Acid DenaturationPolymerase Chain ReactionDNA, NeoplasmDNA PrimersMethylenetetrahydrofolate Reductase (NADPH2)

Identifiers

PMID15068389
OpenAlexW2034342713

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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.