Evidence map›Paper›PMID 12878707›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2003

Distribution and properties of functional postsynaptic kainate receptors on neocortical layer V pyramidal neurons.

Matthias Eder, Klaus Becker, Gerhard Rammes, Anja Schierloh, Shahnaz Christina Azad, Walter Zieglgänsberger, Hans-Ulrich Dodt

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.6field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Activation of Extrasynaptic Kainate Receptors Drives Hilar Mossy Cell Activity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  3. Article
  4. Review
  5. Article
  6. Kainate receptor signaling in pain pathways.Molecular pharmacology · 2013
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Subunit-dependent postsynaptic expression of kainate receptors on hippocampal interneurons in area CA1.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  13. Article
  14. Article
  15. Article
  16. Desensitization properties of AMPA receptors at the cerebellar mossy fiber granule cell synapse.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2007
    Article
  17. Article
  18. Article
  19. Article
  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 4 institutions in 1 country.

Matthias EderClinical Neuropharmacology, Max-Planck-Institute of Psychiatry, 80804 Munich, Germany. Eder@mpipsykl.mpg.de
Klaus Becker
Gerhard Rammes
Anja Schierloh
Shahnaz Christina Azad
Walter Zieglgänsberger
Hans-Ulrich Dodt
Max Planck Society · DEMax Planck Institute of Psychiatry · DELudwig-Maximilians-Universität München · DETechnical University of Munich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The distribution of glutamate receptor subtypes on the surface of neurons is highly relevant for synaptic transmission and signal processing. In the present study we investigated the location and properties of functional kainate receptors (KARs) on the somatodendritic membrane of rat neocortical layer V pyramidal neurons. Infrared-guided laser stimulation was used to apply glutamate photolytically to the soma and various sites along the apical dendrite. Electrical currents, resulting from the activation of pharmacologically isolated KARs, were measured by whole-cell patch-clamp recording. In addition, KARs on somatic and dendritic outside-out patches were activated while still within the brain tissue. We found that functional KARs are located on the entire somatodendritic membrane that was examined. Fast kinetics, a linear I-V relationship, and a relatively high single-channel conductance are characteristic features of these receptors. We provide evidence that the unitary properties of somatic and dendritic KARs are identical. Regarding the subcellular distribution of KARs, our results indicate that the density of these receptors increases toward the distal dendrite. They are located mainly at extrasynaptic sites but also mediate fast synaptic signaling triggered by afferent stimulation. The differential distribution speaks in favor of a selective targeting of KARs on central neurons and may reflect a mechanism for a location-dependent regulation of synaptic efficacy. Furthermore, it is feasible to assume that extrasynaptic KARs could be activated by a "spillover" of synaptically released glutamate, ambient glutamate in the CSF, or glutamate released from adjacent astrocytes.

Indexed as

AnimalsCell MembraneDendritesElectric StimulationGlutamatesInfrared RaysIn Vitro TechniquesKainic Acid ReceptorsLasersMaleNeocortexPatch-Clamp TechniquesPhotochemistryPyramidal CellsRatsSynapses(carboxy-2-nitrobenzyl)glutamic acidGlutamatesKainic Acid Receptors

Identifiers

PMID12878707
PMCPMC6740632
OpenAlexW1858013900

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.