Evidence map›Paper›PMID 24757000›Full record

ArticleJIMD reports2014

Leucine Loading Test is Only Discriminative for 3-Methylglutaconic Aciduria Due to AUH Defect.

Saskia B Wortmann, Leo A J Kluijtmans, Silvia Sequeira, Ron A Wevers, Eva Morava

Abstract read
In one paragraph

Article in JIMD reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Metabolic origin and significance of 3-methylglutaryl CoA.Clinica chimica acta; international journal of clinical chemistry · 2025
    Review
  2. 3-Methylglutarylcarnitine: A biomarker of mitochondrial dysfunction.Clinica chimica acta; international journal of clinical chemistry · 2023
    Review
  3. Article
  4. Review
  5. Review
  6. Inborn errors of metabolism associated with 3-methylglutaconic aciduria.Clinica chimica acta; international journal of clinical chemistry · 2021
    Review
  7. Isomerization ofJIMD reports · 2021
    Article
  8. trans-3-Methylglutaconyl CoA isomerization-dependent protein acylation.Biochemical and biophysical research communications · 2021
    Article
  9. 3-Methylglutaric acid in energy metabolism.Clinica chimica acta; international journal of clinical chemistry · 2020
    Review
  10. Article
  11. Article
  12. 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.

Saskia B WortmannDepartment of Pediatrics, Nijmegen Centre for Mitochondrial Disorders (NCMD), Amalia Children's Hospital, Radboud University Medical Centre, 9101, 6500 HB, Nijmegen, The Netherlands, Saskia.Wortmann-Hagemann@radboudumc.nl.
Leo A J Kluijtmans
Silvia Sequeira
Ron A Wevers
Eva Morava

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Currently, six inborn errors of metabolism with 3-methylglutaconic aciduria as discriminative feature are known. The "Primary 3-methylglutaconic aciduria," 3-methylglutaconyl-CoA hydratase deficiency or AUH defect, is a disorder of leucine catabolism. For all other subtypes, also denoted "Secondary 3-methylglutaconic acidurias" (TAZ defect or Barth syndrome, SERAC1 defect or MEGDEL syndrome, OPA3 defect or Costeff syndrome, DNAJC19 defect or DCMA syndrome, TMEM70 defect, "not otherwise specified (NOS) 3-MGA-uria"), the origin of 3-methylglutaconic aciduria remains enigmatic but is hypothesized to be independent from leucine catabolism. Here we show the results of leucine loading test in 21 patients with different inborn errors of metabolism who present with 3-methylglutaconic aciduria. After leucine loading urinary 3-methylglutaconic acid levels increased only in the patients with an AUH defect. This strongly supports the hypothesis that 3-methylglutaconic aciduria is independent from leucine breakdown in other inborn errors of metabolism with 3-methylglutaconic aciduria and also provides a simple test to discriminate between primary and secondary 3-methylglutaconic aciduria in regular patient care.

Identifiers

PMID24757000
PMCPMC4221300

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