Evidence map›Paper›PMID 15385937›Full record

ArticleLeukemia2004

Methylenetetrahydrofolate reductase (MTHFR) gene 677C>T and 1298A>C polymorphisms are associated with differential apoptosis of leukemic B cells in vitro and disease progression in chronic lymphocytic leukemia.

H Nückel, U H Frey, J Dürig, U Dührsen, W Siffert

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Leukemia, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

7 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Review
  3. MTHFR A1298C and C677T gene polymorphisms and susceptibility to chronic myeloid leukemia in Egypt.International journal of clinical and experimental pathology · 2014
    Article
  4. PharmGKB summary: methotrexate pathway.Pharmacogenetics and genomics · 2011
    Article
  5. Article
  6. Article
  7. 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

5 authors at 2 institutions in 1 country.

H NückelDepartment of Hematology, Medical Faculty, University of Essen, Germany. holger.nueckel@uni-essen.de <holger.nueckel@uni-essen.de>
U H Frey
J Dürig
U Dührsen
W Siffert
University of Duisburg-Essen · DEEssen University Hospital · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methylenetetrahydrofolate reductase (MTHFR) regulates the metabolism of folate and methionine, essential components of DNA synthesis and methylation. We investigated whether the two genetic MTHFR polymorphisms (677C>T and 1298A>C) are associated with an increased risk for chronic lymphocytic leukemia (CLL) or may predict disease progression. Moreover, we measured potential genotype effects on apoptosis of B-CLL cells.Allele frequencies and genotype distributions for both polymorphisms were not significantly different in 111 patients vs 92 healthy controls. While progression-free survival (PFS) was not significantly different in individuals with CLL including all stages, in patients with Binet stage A PFS was significantly longer in patients displaying the MTHFR 677CC (P=0.043) and the MTHFR 1298A/C or CC genotypes (P=0.019). In a multivariate analysis, MTHFR haplotype (677CC plus 1298CC or A/C) was the best independent prognostic factor for PFS compared with other known prognostic factors. Spontaneous apoptosis of B-CLL cells in vitro was significantly increased in the favorable risk group with MTHFR 677CC and MTHFR 1298AC, which may constitute the cellular basis of the observed associations. While MTHFR polymorphisms do not affect the risk for B-CLL, they may be independent prognostic markers that influence the PFS in patients with early-stage B-CLL.

Indexed as

ApoptosisCase-Control StudiesDisease ProgressionFemaleGene FrequencyGenotypeHaplotypesHumansIn Vitro TechniquesLeukemia, Lymphocytic, Chronic, B-CellMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedPolymorphism, GeneticPrognosisRetrospective StudiesMethylenetetrahydrofolate Reductase (NADPH2)

Identifiers

PMID15385937
OpenAlexW1966612034

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.