Evidence map›Paper›PMID 23089671›Full record

SynthesisThe pharmacogenomics journal2013

A systematic review and meta-analysis of MTHFR polymorphisms in methotrexate toxicity prediction in pediatric acute lymphoblastic leukemia.

E Lopez-Lopez, I Martin-Guerrero, J Ballesteros, A Garcia-Orad

Open access · greenAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in The pharmacogenomics journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 5 pooled it
6.6field-weighted citation impact, top 3% 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

39 citing papers in PubMed, 5 syntheses or guidelines pooled it, 94 citations in OpenAlex.

  1. Pooled it
  2. Genetic markers in methotrexate treatments.The pharmacogenomics journal · 2018
    Pooled it
  3. Pooled it
  4. Glutathione S-transferase gene polymorphisms and susceptibility to chronic myeloid leukemia.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  5. Pooled it
  6. Trial
  7. Review
  8. Article
  9. Article
  10. Article
  11. [Association ofZhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2026
    Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. 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

4 authors at 2 institutions in 1 country.

E Lopez-LopezDepartment of Genetics, Physic Anthropology and Animal Physiology, Faculty of Medicine and Dentistry, University of the Basque Country, Leioa, Spain.
I Martin-Guerrero
J Ballesteros
A Garcia-Orad
University of the Basque Country · ESCentro de Investigación Biomédica en Red de Salud Mental · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methotrexate (MTX) is an important component of therapy used to treat childhood acute lymphoblastic leukemia (ALL). Two single-nucleotide polymorphisms (SNPs) in the methylenetetrahydrofolate reductase (MTHFR) gene, C677T and A1298C, affect MTHFR activity. A large body of studies has investigated the potential role of MTHFR SNPs in MTX toxicity in pediatric ALL. However, the results are controversial. In this review and meta-analysis, we critically evaluate the relationship between the C677T and A1298C polymorphisms of MTHFR and MTX toxicity in pediatric ALL. The majority of published reports do not find associations between MTHFR polymorphisms and toxicity in pediatric ALL. When associations are reported, often the results are contradictory to each other. The meta-analysis confirms a lack of association. In conclusion, MTHFR, C677T and A1298C polymorphisms do not seem to be good markers of MTX-related toxicity in pediatric ALL.

Indexed as

Polymorphism, Single NucleotideChildHumansMethotrexateMethylenetetrahydrofolate Reductase (NADPH2)Precursor Cell Lymphoblastic Leukemia-LymphomaMethotrexateMethylenetetrahydrofolate Reductase (NADPH2)

Identifiers

PMID23089671
OpenAlexW2058907310

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.