Evidence map›Paper›PMID 24777537›Full record

ReviewJournal of inherited metabolic disease2014

Lipoic acid biosynthesis defects.

Johannes A Mayr, René G Feichtinger, Frederic Tort, Antonia Ribes, Wolfgang Sperl

Abstract readReview
PubMed Publisher
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 122 papers.

0numbers the graph read from it
0cells of the map it votes in
122citing papers in PubMed
9.5field-weighted citation impact, top 1% 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

122 citing papers in PubMed, 265 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. NBR1-Mediated Autophagic Degradation of YTHDF1 CurtailsCancer communications (London, England) · 2026
    Article
  6. Article
  7. Article
  8. Targeting cuproptosis in liver cancer: Molecular mechanisms and therapeutic implications.Apoptosis : an international journal on programmed cell death · 2025
    Review
  9. Review
  10. NEDD4L induces mitochondrial dysfunction and neurodegeneration by promoting LIPT2 degradation in Huntington's disease.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Cuproptosis: Mechanism and Application in Lymphoma.Current cancer drug targets · 2025
    Review
  19. Article
  20. Article

62 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 2 countries.

Johannes A MayrDepartment of Paediatrics, Paracelsus Medical University Salzburg, Salzburg, 5020, Austria, H.Mayr@salk.at.
René G Feichtinger
Frederic Tort
Antonia Ribes
Wolfgang Sperl
Paracelsus Medical University · ATCentro de Investigación Biomédica en Red · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lipoate is a covalently bound cofactor essential for five redox reactions in humans: in four 2-oxoacid dehydrogenases and the glycine cleavage system (GCS). Two enzymes are from the energy metabolism, α-ketoglutarate dehydrogenase and pyruvate dehydrogenase; and three are from the amino acid metabolism, branched-chain ketoacid dehydrogenase, 2-oxoadipate dehydrogenase, and the GCS. All these enzymes consist of multiple subunits and share a similar architecture. Lipoate synthesis in mitochondria involves mitochondrial fatty acid synthesis up to octanoyl-acyl-carrier protein; and three lipoate-specific steps, including octanoic acid transfer to glycine cleavage H protein by lipoyl(octanoyl) transferase 2 (putative) (LIPT2), lipoate synthesis by lipoic acid synthetase (LIAS), and lipoate transfer by lipoyltransferase 1 (LIPT1), which is necessary to lipoylate the E2 subunits of the 2-oxoacid dehydrogenases. The reduced form dihydrolipoate is reactivated by dihydrolipoyl dehydrogenase (DLD). Mutations in LIAS have been identified that result in a variant form of nonketotic hyperglycinemia with early-onset convulsions combined with a defect in mitochondrial energy metabolism with encephalopathy and cardiomyopathy. LIPT1 deficiency spares the GCS, and resulted in a combined 2-oxoacid dehydrogenase deficiency and early death in one patient and in a less severely affected individual with a Leigh-like phenotype. As LIAS is an iron-sulphur-cluster-dependent enzyme, a number of recently identified defects in mitochondrial iron-sulphur cluster synthesis, including NFU1, BOLA3, IBA57, GLRX5 presented with deficiency of LIAS and a LIAS-like phenotype. As in DLD deficiency, a broader clinical spectrum can be anticipated for lipoate synthesis defects depending on which of the affected enzymes is most rate limiting.

Indexed as

Lipid Metabolism, Inborn Errors3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)AcyltransferasesAmino Acid OxidoreductasesAnimalsCarrier ProteinsDihydrolipoamide DehydrogenaseDisease Models, AnimalHumansMultienzyme ComplexesSulfurtransferasesThioctic AcidTransferases3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)AcyltransferasesAmino Acid OxidoreductasesCarrier ProteinsDihydrolipoamide Dehydrogenaseglycine cleavage systemlipoic acid synthaselipoyltransferase Ilipoyltransferase IIMultienzyme ComplexesSulfurtransferasesThioctic AcidTransferases

Identifiers

PMID24777537
OpenAlexW1995630908

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.