Evidence map›Paper›PMID 23933820›Full record

ArticleNature genetics2013

GRIN2A mutations in acquired epileptic aphasia and related childhood focal epilepsies and encephalopathies with speech and language dysfunction.

Gaetan Lesca, Gabrielle Rudolf, Nadine Bruneau, Natalia Lozovaya, Audrey Labalme, Nadia Boutry-Kryza, Manal Salmi, Timur Tsintsadze, Laura Addis, Jacques Motte and 19 more

Abstract read
PubMed Publisher
In one paragraph

Article in Nature genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 183 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
183citing papers in PubMed, 2 pooled it
30.8field-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

183 citing papers in PubMed, 2 syntheses or guidelines pooled it, 438 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Single-Dose Memantine Improves Cortical Oscillatory Response Dynamics in Patients with Schizophrenia.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2017
    Trial
  4. Review
  5. Review
  6. Article
  7. Review
  8. Observational
  9. Article
  10. Article
  11. Article
  12. Article
  13. Distinct Regulation of Early Trafficking of the NMDA Receptors by the Ligand-Binding Domains of the GluN1 and GluN2A Subunits.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

29 authors at 16 institutions in 5 countries.

Gaetan LescaDepartment of Genetics, University Hospitals of Lyon, Lyon, France.
Gabrielle Rudolf
Nadine Bruneau
Natalia Lozovaya
Audrey Labalme
Nadia Boutry-Kryza
Manal Salmi
Timur Tsintsadze
Laura Addis
Jacques Motte
Sukhvir Wright
Vera Tsintsadze
Anne Michel
Diane Doummar
Karine Lascelles
Lisa Strug
Patrick Waters
Julitta de Bellescize
Pascal Vrielynck
Anne de Saint Martin
Dorothee Ville
Philippe Ryvlin
Alexis Arzimanoglou
Edouard Hirsch
Angela Vincent
Deb Pal
Nail Burnashev
Damien Sanlaville
Pierre Szepetowski
Inserm · FRUniversité de Strasbourg · FRCentre de Recherche en Neurosciences de Lyon · FRJohn Radcliffe Hospital · GBKing's College London · GBAix-Marseille Université · FRCentre National de la Recherche Scientifique · FRDélégation Paris 5 · FREvelina London Children's Healthcare · GBHôpital Pontchaillou · FRInstitut de Neurobiologie de la Méditerranée · FRMemorial Hospital of South Bend · USSorbonne Université · FRUCLouvain · BEUniversity of Oxford · GBUniversity of Toronto · CA

Funding

Wellcome Trust
6 · The paper itself

Abstract

Epileptic encephalopathies are severe brain disorders with the epileptic component contributing to the worsening of cognitive and behavioral manifestations. Acquired epileptic aphasia (Landau-Kleffner syndrome, LKS) and continuous spike and waves during slow-wave sleep syndrome (CSWSS) represent rare and closely related childhood focal epileptic encephalopathies of unknown etiology. They show electroclinical overlap with rolandic epilepsy (the most frequent childhood focal epilepsy) and can be viewed as different clinical expressions of a single pathological entity situated at the crossroads of epileptic, speech, language, cognitive and behavioral disorders. Here we demonstrate that about 20% of cases of LKS, CSWSS and electroclinically atypical rolandic epilepsy often associated with speech impairment can have a genetic origin sustained by de novo or inherited mutations in the GRIN2A gene (encoding the N-methyl-D-aspartate (NMDA) glutamate receptor α2 subunit, GluN2A). The identification of GRIN2A as a major gene for these epileptic encephalopathies provides crucial insights into the underlying pathophysiology.

Indexed as

MutationAmino Acid SubstitutionCell LineElectroencephalographyEpilepsies, PartialFemaleGene ExpressionGenotypeHumansLandau-Kleffner SyndromeMalePedigreePhenotypeReceptors, N-Methyl-D-AspartateReceptors, N-Methyl-D-Aspartate

Identifiers

PMID23933820
OpenAlexW2023235195

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.