Evidence map›Paper›PMID 24407466›Full record

ReviewJournal of inherited metabolic disease2014

Metabolic biology of 3-methylglutaconic acid-uria: a new perspective.

Betty Su, Robert O Ryan

Open access · greenAbstract readReview
In one paragraph

Review in Journal of inherited metabolic disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

28 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. 3-Methyl Glutaconic Aciduria and Elevated Plasma Growth Differentiation Factor 15 Level in an Adult with MonoallelicActa myologica : myopathies and cardiomyopathies : official journal of the Mediterranean Society of Myology · 2025
    Article
  3. Article
  4. Metabolic origin and significance of 3-methylglutaryl CoA.Clinica chimica acta; international journal of clinical chemistry · 2025
    Review
  5. YME1L1 Dysfunction Associated With 3-Methylglutaconic Aciduria.Journal of inherited metabolic disease · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. 3-Methylglutarylcarnitine: A biomarker of mitochondrial dysfunction.Clinica chimica acta; international journal of clinical chemistry · 2023
    Review
  10. Article
  11. Characterization ofMetabolites · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Inborn errors of metabolism associated with 3-methylglutaconic aciduria.Clinica chimica acta; international journal of clinical chemistry · 2021
    Review
  19. Isomerization ofJIMD reports · 2021
    Article
  20. trans-3-Methylglutaconyl CoA isomerization-dependent protein acylation.Biochemical and biophysical research communications · 2021
    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

2 authors at 1 institution in 1 country.

Betty SuChildren's Hospital Oakland Research Institute, 5700 Martin Luther King Jr. Way, Oakland, CA, 94609, USA.
Robert O Ryan
Martin Luther King, Jr. Multi-Service Ambulatory Care Center · US

Funding

Effect of Apolipoprotein Structural AdaptabilityR37HL064159 · NHLBI · UNIVERSITY OF NEVADA RENO · PI RYAN, ROBERT O'MARA · 2010 to 2019
$4.1M
EFFECT OF APOLIPOPROTEIN STRUCTURAL ADAPTABILITYR01HL064159 · NHLBI · CHILDREN'S HOSPITAL &RES CTR AT OAKLAND · PI RYAN, ROBERT O'MARA · 2000 to 2009
$3.6M
NHLBI NIH HHS HL-64159NHLBI NIH HHS R01 HL064159NHLBI NIH HHS R37 HL064159
6 · The paper itself

Abstract

Over the past 25 years a growing number of distinct syndromes/mutations associated with compromised mitochondrial function have been identified that share a common feature: urinary excretion of 3-methylglutaconic acid (3MGA). In the leucine degradation pathway, carboxylation of 3-methylcrotonyl CoA leads to formation of 3-methylglutaconyl CoA while 3-methylglutaconyl CoA hydratase converts this metabolite to 3-hydroxy-3-methylglutaryl CoA (HMG CoA). In "primary" 3MGA-uria, mutations in the hydratase are directly responsible for the accumulation of 3MGA. On the other hand, in all "secondary" 3MGA-urias, no defect in leucine catabolism exists and the metabolic origin of 3MGA is unknown. Herein, a path to 3MGA from mitochondrial acetyl CoA is proposed. The pathway is initiated when syndrome-associated mutations/DNA deletions result in decreased Krebs cycle flux. When this occurs, acetoacetyl CoA thiolase condenses two acetyl CoA into acetoacetyl CoA plus CoASH. Subsequently, HMG CoA synthase 2 converts acetoacetyl CoA and acetyl CoA to HMG CoA. Under syndrome-specific metabolic conditions, 3-methylglutaconyl CoA hydratase converts HMG CoA into 3-methylglutaconyl CoA in a reverse reaction of the leucine degradation pathway. This metabolite fails to proceed further up the leucine degradation pathway owing to the kinetic properties of 3-methylcrotonyl CoA carboxylase. Instead, hydrolysis of the CoA moiety of 3-methylglutaconyl CoA generates 3MGA, which appears in urine. If experimentally confirmed, this pathway provides an explanation for the occurrence of 3MGA in multiple disorders associated with compromised mitochondrial function.

Indexed as

Acetyl Coenzyme AAcyl Coenzyme AAnimalsCardiolipinsChoreaCitric Acid CycleGlutaratesHumansMetabolism, Inborn ErrorsMitochondrial ProteinsOptic AtrophyPhosphatidylglycerolsSmith-Lemli-Opitz SyndromeSpastic Paraplegia, HereditaryTerpenes3-methylglutaconic acidacetoacetyl CoAAcetyl Coenzyme AAcyl Coenzyme ACardiolipinsGlutaratesMitochondrial ProteinsPhosphatidylglycerolsTerpenes

Identifiers

PMID24407466
PMCPMC4016128
OpenAlexW2019146240

What OpenQuestion holds

Textmetadata
LicenceTDM
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.