Evidence map›Paper›PMID 22236713›Full record

ArticleJournal of neurophysiology2012

Tonic NMDA receptor-mediated current in prefrontal cortical pyramidal cells and fast-spiking interneurons.

Nadezhda V Povysheva, Jon W Johnson

Open access · greenAbstract read
In one paragraph

Article in Journal of neurophysiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

39 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
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  4. The Astrocytic Zinc Transporter ZIP12 Is a Synaptic Protein That Contributes to Synaptic Zinc Levels in the Mouse Auditory Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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  9. Review
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  12. Tonic Activation of GluN2C/GluN2D-Containing NMDA Receptors by Ambient Glutamate Facilitates Cortical Interneuron Maturation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  13. Article
  14. Article
  15. Divergent Prelimbic Cortical Pathways Interact with BDNF to Regulate Cocaine-seeking.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  16. Article
  17. Multiple long-range inputs evoke NMDA currents in prefrontal cortex fast-spiking interneurons.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  18. Review
  19. 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

2 authors at 2 institutions in 1 country.

Nadezhda V PovyshevaDepartment of Neuroscience and Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA. nvp1@pitt.edu
Jon W Johnson
Center for Neurosciences · USUniversity of Pittsburgh · US

Funding

Permeation, Block, and Gating of NMDA ReceptorsR01MH045817 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI JOHNSON, JON W. · 1997 to 2017
$5.0M
Role NR1/2C and NR1/2D NMDA Receptors in Cortex Function and Memantine ActionR21NS074056 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI JOHNSON, JON W. · 2011 to 2012
$405k
NIMH NIH HHS R01 MH045817NINDS NIH HHS R21 NS074056
6 · The paper itself

Abstract

Tonically activated neuronal currents mediated by N-methyl-d-aspartate receptors (NMDARs) have been hypothesized to contribute to normal neuronal function as well as to neuronal pathology resulting from excessive activation of glutamate receptors (e.g., excitotoxicity). Whereas cortical excitatory cells are very vulnerable to excitotoxic insult, the data regarding resistance of inhibitory cells (or interneurons) are inconsistent. Types of neurons with more pronounced tonic NMDAR current potentially associated with the activation of extrasynaptic NMDARs could be expected to be more vulnerable to excessive activation by glutamate. In this study, we compared tonic activation of NMDARs in excitatory pyramidal cells and inhibitory fast-spiking interneurons in prefrontal cortical slices. We assessed tonic NMDAR current by measuring holding current shift as well as noise reduction following NMDAR blockade after removal of spontaneous glutamate release. In addition, we compared NMDAR miniature excitatory postsynaptic currents (EPSCs) in both cell types. We have demonstrated for the first time that tonic NMDAR currents are present in inhibitory fast-spiking interneurons. We found that the magnitude of tonic NMDAR current is similar in pyramidal cells and fast-spiking interneurons, and that quantal release of glutamate does not significantly impact tonic NMDAR current.

Indexed as

Action PotentialsAnimalsExcitatory Postsynaptic PotentialsInterneuronsMalePrefrontal CortexPyramidal CellsRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateTime FactorsReceptors, N-Methyl-D-Aspartate

Identifiers

PMID22236713
PMCPMC3331604
OpenAlexW2025698938

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.