Evidence map›Paper›PMID 17493642›Full record

ArticleNeuropharmacology2007

Presynaptic AMPA and kainate receptors increase the size of GABAergic terminals and enhance GABA release.

Mónica L Fiszman, Ferenc Erdélyi, Gábor Szabó, Stefano Vicini

Open access · greenAbstract read
In one paragraph

Article in Neuropharmacology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 51% 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

4 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. 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

4 authors at 2 institutions in 2 countries.

Mónica L FiszmanDepartment of Physiology and Biophysics, Georgetown University School of Medicine, Washington, DC 20007, USA.
Ferenc Erdélyi
Gábor Szabó
Stefano Vicini
Georgetown University · USHUN-REN Institute of Experimental Medicine · HU

Funding

Heterogeneity of Synaptic NMDA ReceptorsR01NS047700 · NINDS · GEORGETOWN UNIVERSITY · PI VICINI, STEFANO · 2003 to 2011
$2.6M
NINDS NIH HHS NS047700NINDS NIH HHS R01 NS047700
6 · The paper itself

Abstract

In the developing cerebellum, NMDA receptors promote the maturation of axonal terminals of inhibitory interneurons. We compared the effects of AMPA/kainate receptor agonists in cultured cerebellar cells from GAD65-eGFP mice. Both AMPA and kainate augmented granule cell survival without affecting interneurons. The action of kainate was blocked by an AMPA but not by a NMDA receptor antagonist, suggesting AMPA receptor involvement. AMPA and kainate increased the size of the GABAergic terminals and the action of kainate was insensitive to NMDA blockers. Whole cell recordings in granule neurons revealed that chronic treatment for 5 days with kainate as well as NMDA decreased AMPA receptor expression while interneuronal kainate receptors were depressed by kainate treatment. Acute kainate application increased mIPSCs frequency in both granule neurons and interneurons and this effect was only partially blocked by an AMPA receptor antagonist. In contrast to what was reported for NMDA, chronic treatment with kainate induced a significant decrease of the basal mIPSCs frequency but increased the acute action of kainate on mIPSCs. Direct recordings from presynaptic GABAergic terminals suggest that AMPA and kainate receptors are present in developing GABAergic terminals and their activation affects the size of GABAergic terminals and spontaneous GABA release.

Indexed as

alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidAnimalsAnimals, NewbornBenzodiazepinesCells, CulturedCerebellumDose-Response Relationship, DrugDrug InteractionsExcitatory Amino Acid AgonistsExcitatory Amino Acid Antagonistsgamma-Aminobutyric AcidGlutamate DecarboxylaseGreen Fluorescent ProteinsInhibitory Postsynaptic PotentialsInterneuronsKainic Acidalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidBenzodiazepinesExcitatory Amino Acid AgonistsExcitatory Amino Acid Antagonistsgamma-Aminobutyric AcidGlutamate Decarboxylaseglutamate decarboxylase 2Green Fluorescent ProteinsGYKI 52466Kainic AcidKainic Acid ReceptorsReceptors, AMPA

Identifiers

PMID17493642
PMCPMC2048687
OpenAlexW2075532922

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.