Evidence map›Paper›PMID 23228615›Full record

ArticleThe international journal of neuropsychopharmacology2013

Impairment of cortical GABAergic synaptic transmission in an environmental rat model of autism.

Anwesha Banerjee, Francisco García-Oscos, Swagata Roychowdhury, Luis C Galindo, Shawn Hall, Michael P Kilgard, Marco Atzori

Open access · greenAbstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 7% 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

57 citing papers in PubMed, 2 syntheses or guidelines pooled it, 115 citations in OpenAlex.

  1. Pooled it
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  15. The Role of Zinc and NMDA Receptors in Autism Spectrum Disorders.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  16. Chronic sodium bromide treatment relieves autistic-like behavioral deficits in three mouse models of autism.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Article
  17. Generational synaptic functions of GABAJournal of biomedical science · 2022
    Article
  18. Article
  19. Autism Spectrum Disorder: Focus on Glutamatergic Neurotransmission.International journal of molecular sciences · 2022
    Review
  20. 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

7 authors at 2 institutions in 2 countries.

Anwesha BanerjeeSchool of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, TX 75080, USA.
Francisco García-Oscos
Swagata Roychowdhury
Luis C Galindo
Shawn Hall
Michael P Kilgard
Marco Atzori
The University of Texas at Dallas · USUniversidad Nacional Autónoma de México · MX

Funding

Animal Model of Speech Sound Processing in AutismR01DC010433 · NIDCD · UNIVERSITY OF TEXAS DALLAS · PI KILGARD, MICHAEL P · 2010 to 2014
$1.4M
NIDCD NIH HHS R01 DC010433NIDCD NIH HHS R01DC010433
6 · The paper itself

Abstract

The biological mechanisms of autism spectrum disorders (ASDs) are largely unknown in spite of extensive research. ASD is characterized by altered function of multiple brain areas including the temporal cortex and by an increased synaptic excitation:inhibition ratio. While numerous studies searched for evidence of increased excitation in ASD, fewer have investigated the possibility of reduced inhibition. We characterized the cortical γ-amino butyric acid (GABA)ergic system in the rat temporal cortex of an ASD model [offspring of mothers prenatally injected with valproic acid (VPA)], by monitoring inhibitory post-synaptic currents (IPSCs) with patch-clamp. We found that numerous features of inhibition were severely altered in VPA animals compared to controls. Among them were the frequency of miniature IPSCs, the rise time and decay time of electrically-evoked IPSCs, the slope and saturation of their input/output curves, as well as their modulation by adrenergic and muscarinic agonists and by the synaptic GABAA receptor allosteric modulator zolpidem (but not by the extra-synaptic modulator gaboxadol). Our data suggest that both pre- and post-synaptic, but not extra-synaptic, inhibitory transmission is impaired in the offspring of VPA-injected mothers. We speculate that impairment in the GABAergic system critically contributes to an increase in the ratio between synaptic excitation and inhibition, which in genetically predisposed individuals may alter cortical circuits responsible for emotional, communication and social impairments at the core of ASD.

Indexed as

EnvironmentAnimalsAntimanic AgentsAutistic DisorderBiophysicsDisease Models, AnimalElectric StimulationFemaleGABA AgentsGABAergic NeuronsInhibitory Postsynaptic PotentialsIn Vitro TechniquesMalePatch-Clamp TechniquesPregnancyPrenatal Exposure Delayed EffectsAntimanic AgentsGABA AgentsValproic Acid

Identifiers

PMID23228615
PMCPMC3674140
OpenAlexW2113388607

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.