Evidence map›Paper›PMID 32695297›Full record

ArticleIranian journal of basic medical sciences2020

Polymorphisms within methotrexate pathway genes: Relationship between plasma methotrexate levels, toxicity experienced and outcome in pediatric acute lymphoblastic leukemia.

Mohammad Ali Esmaili, Ahmad Kazemi, Mohammad Faranoush, Hakan Mellstedt, Farhad Zaker, Majid Safa, Narjes Mehrvar, Mohammad Reza Rezvany

Open access · greenAbstract read
In one paragraph

Article in Iranian journal of basic medical sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
2.9field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  6. [Association ofZhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2026
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  11. Association ofCurrent issues in molecular biology · 2024
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  12. 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 2 countries.

Mohammad Ali EsmailiDepartment of Hematology, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran.
Ahmad KazemiDepartment of Hematology, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran.
Mohammad FaranoushPediatric Growth and Development Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran.
Hakan MellstedtDepartment of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm 17176, Sweden.
Farhad ZakerCellular and Molecular Research Center, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
Majid SafaCellular and Molecular Research Center, Department of Hematology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
Narjes MehrvarCancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mohammad Reza RezvanyDepartment of Hematology, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran.
Iran University of Medical Sciences · IRKarolinska University Hospital · SEShahid Beheshti University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe current study aimed to investigate the relationship of genetic polymorphism and plasma methotrexate (MTX) levels, toxicity experience and event free survival (EFS) in pediatric acute lymphoblastic leukemia (ALL). MATERIALS AND

methodsThe study included 74 ALL patients. Polymerase chain reaction and genotyping of methylene tetrahydrofolate reductase (MTHFR) rs1801133, MTHFR rs1801131, ATP-binding cassette superfamily B1 (ABCB1) rs1045642, ATP-binding cassette superfamily G2 (ABCG2) rs2231142 and solute carrier 19A1 (SLC19A1) rs1051266 genetic variations were performed. The plasma MTX levels were investigated at 48 hr after the first dose of MTX infusion.

resultsMTHFR rs1801133 TT genotype, ABCBa1 rs1045642 CT genotype and ABCG2 rs2231142 CA genotype revealed a statistically significant association with the MTX plasma levels (

conclusionOur findings showed that genetic polymorphism could be associated with plasma MTX levels, toxicity experienced and EFS in Iranian pediatric ALL.

Indexed as

ABCB1ABCG2Genetic polymorphismGenotypelymphoblastic- leukemiaMethotrexateMTHFRPediatric acuteSLC19A1

Identifiers

PMID32695297
PMCPMC7351433
OpenAlexW3034470028

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Registered trials

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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.