Evidence map›Paper›PMID 28696419›Full record

SynthesisThe pharmacogenomics journal2018

Associations between the C677T and A1298C polymorphisms of MTHFR and the toxicity of methotrexate in childhood malignancies: a meta-analysis.

C Zhu, Y W Liu, S Z Wang, X L Li, X L Nie, X T Yu, L B Zhao, X L Wang

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in The pharmacogenomics journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Association betweenFrontiers in endocrinology · 2023
    Pooled it
  3. Genetic markers in methotrexate treatments.The pharmacogenomics journal · 2018
    Pooled it
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  6. Involvement of theInternational journal of general medicine · 2024
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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

8 authors at 3 institutions in 1 country.

C ZhuDepartment of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China.
Y W LiuDepartment of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China.
S Z WangDepartment of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China.
X L LiDepartment of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing, China.
X L NieDepartment of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China.
X T YuDepartment of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China.
L B ZhaoDepartment of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China.
X L WangDepartment of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China.
Beijing Children’s Hospital · CNCapital Medical University · CNPeking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As a common chemotherapy drug, methotrexate (MTX) has achieved remarkable clinical success. However, high inter-individual variability and unpredictable toxicity continue to challenge its use in clinical practices. Some studies suggest this variation is associated with a methylenetetrahydrofolate reductase (MTHFR) gene polymorphism, but results remain unclear. In this meta-analysis, we include 14 studies that focus on MTHFR C677T and A1298C polymorphisms in pediatric patients with malignancy. We found significant associations of the MTHFR C677T polymorphism with hepatotoxicity (grade ⩾2; CC vs CT/TT: risk ratio (RR): 0.82, 95% confidence interval (CI): 0.67-0.99; P=0.04), hematological toxicity (grade 3-4; CC vs CT/TT: RR: 0.65, 95% CI: 0.44-0.97; P=0.03) in a dominant genetic model and mucositis (grade ⩾3) in all models (CC vs CT/TT: RR: 0.18, 95% CI: 0.04-0.87; P=0.03; CC/CT vs TT: RR: 0.10, 95% CI: 0.03-0.32; P⩽0.0001; CC vs TT: RR: 0.10, 95% CI: 0.02-0.50; P=0.005). No significant association was found with the MTHFR A1298C polymorphism. For children with malignancy, genotyping of the MTHFR C677T polymorphism is expected to be a useful tool in reducing toxicity and improving outcome in personalized MTX therapy.

Indexed as

ChildDrug-Related Side Effects and Adverse ReactionsFemaleGenetic Association StudiesGenetic Predisposition to DiseaseHumansMaleMethotrexateMethylenetetrahydrofolate Reductase (NADPH2)NeoplasmsPediatricsPolymorphism, Single NucleotideRisk FactorsMethotrexateMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, human

Identifiers

PMID28696419
OpenAlexW2734983688

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.