Evidence map›Paper›PMID 14567473›Full record

ArticleMetabolic brain disease2003

Effects of L-2-hydroxyglutaric acid on various parameters of the glutamatergic system in cerebral cortex of rats.

Débora Junqueira, Ana M Brusque, Lisiane O Porciúncula, Liane N Rotta, Céar A J Ribeiro, Marcos E S Frizzo, Carlos S Dutra Filho, Clóvis M D Wannmacher, Angela T S Wyse, Diogo O Souza and 1 more

Abstract read
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In one paragraph

Article in Metabolic brain disease, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.6field-weighted citation impact, top 34% 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

13 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. The Roles of 2-Hydroxyglutarate.Frontiers in cell and developmental biology · 2021
    Review
  7. Article
  8. Article
  9. Progress in understanding 2-hydroxyglutaric acidurias.Journal of inherited metabolic disease · 2012
    Review
  10. Article
  11. L: -2-Hydroxyglutaric aciduria, a disorder of metabolite repair.Journal of inherited metabolic disease · 2009
    Review
  12. A gene encoding a putative FAD-dependent L-2-hydroxyglutarate dehydrogenase is mutated in L-2-hydroxyglutaric aciduria.Proceedings of the National Academy of Sciences of the United States of America · 2004
    Article
  13. Review
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

11 authors at 1 institution in 1 country.

Débora JunqueiraDepartamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Ana M Brusque
Lisiane O Porciúncula
Liane N Rotta
Céar A J Ribeiro
Marcos E S Frizzo
Carlos S Dutra Filho
Clóvis M D Wannmacher
Angela T S Wyse
Diogo O Souza
Moacir Wajner
Universidade Federal do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

L-2-Hydroxyglutaric acid (LGA) accumulates and is the biochemical hallmark of the neurometabolic disorder L-2-hydroxyglutaric aciduria (LHGA). Although this disease is predominantly characterized by severe neurological findings and pronounced cerebral atrophy, the pathomechanisms of brain injury are virtually unknown. In the present study, we investigated the effect of LGA (0.1-1 mM) on various parameters of the glutamatergic system, namely the basal and potassium-induced release of L-[3H]glutamate by synaptosomal preparations, Na(+)-dependent L-[3H]glutamate uptake by synaptosomal preparations and Na(+)-independent L-[3H]glutamate uptake by synaptic vesicles, as well as of L-[3H]glutamate binding to synaptic plasma membranes from cerebral cortex of male adult Wistar rats. We observed that LGA significantly increased L-[3H]glutamate uptake into synaptosomes and synaptic vesicles, without altering synaptosomal glutamate release and glutamate binding to synaptic plasma membranes. Although more comprehensive studies are necessary to evaluate the exact role of LGA on neurotransmission, our findings do not support a direct excitotoxic action for LGA. Therefore, other abnormalities should be searched for to explain neurodegeneration of LHGA.

Indexed as

AnimalsCell MembraneCerebral CortexGlutamic AcidGlutaratesIn Vitro TechniquesL-Lactate DehydrogenaseMaleNerve Tissue ProteinsPotassiumRatsRats, WistarSodiumSynaptic VesiclesSynaptosomesalpha-hydroxyglutarateGlutamic AcidGlutaratesL-Lactate DehydrogenaseNerve Tissue ProteinsPotassiumSodium

Identifiers

PMID14567473
OpenAlexW311924261

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.