Evidence map›Paper›PMID 37138020›Full record

ArticleThe pharmacogenomics journal2023

DNA polymerase gamma variants and hepatotoxicity during maintenance therapy of childhood acute lymphoblastic leukemia: is there a causal relationship?

Tekla Harju, Anri Hurme-Niiranen, Maria Suo-Palosaari, Stine Nygaard Nielsen, Reetta Hinttala, Kjeld Schmiegelow, Johanna Uusimaa, Arja Harila, Riitta Niinimäki

Open access · hybridAbstract read
In one paragraph

Article in The pharmacogenomics journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 41% 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it, 1 citations in OpenAlex.

  1. Pooled it
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

9 authors at 4 institutions in 3 countries.

Tekla HarjuResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland. tekla.harju@oulu.fi.ORCID 0000-0002-8234-8304
Anri Hurme-NiiranenResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland.ORCID 0000-0002-2888-9417
Maria Suo-PalosaariDepartment of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland.
Stine Nygaard NielsenDepartment of Pediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen University Hospital, and Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
Reetta HinttalaResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland.
Kjeld SchmiegelowPediatric Oncology Laboratory, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
Johanna UusimaaResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland.
Arja Harila *Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
Riitta Niinimäki *Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland.
Oulu University Hospital · FICopenhagen University Hospital · DKUniversity of Copenhagen · DKUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatotoxicity is a frequent complication during maintenance therapy of acute lymphoblastic leukemia (ALL) with 6-mercaptopurine and methotrexate. Elevated levels of methylated 6-mercaptopurine metabolites (MeMP) are associated with hepatotoxicity. However, not all mechanisms are known that lead to liver failure in patients with ALL. Variants in the POLG gene, which encodes the catalytic subunit of mitochondrial DNA polymerase gamma (POLG1), have been related to drug-induced hepatotoxicity, for example, by sodium valproate. The association of common POLG variants with hepatotoxicity during maintenance therapy was studied in 34 patients with childhood ALL. Of the screened POLG variants, four different variants were detected in 12 patients. One patient developed severe hepatotoxicity without elevated MeMP levels and harbored a heterozygous POLG p.G517V variant, which was not found in the other patients.

Indexed as

Chemical and Drug Induced Liver InjuryPrecursor Cell Lymphoblastic Leukemia-LymphomaDNA Polymerase gammaHumansMercaptopurineValproic AcidDNA Polymerase gammaMercaptopurinePOLG protein, humanValproic Acid

Identifiers

PMID37138020
PMCPMC10506908
OpenAlexW4368358135

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.