Evidence map›Paper›PMID 28108498›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2018

mGluR2 versus mGluR3 Metabotropic Glutamate Receptors in Primate Dorsolateral Prefrontal Cortex: Postsynaptic mGluR3 Strengthen Working Memory Networks.

Lu E Jin, Min Wang, Veronica C Galvin, Taber C Lightbourne, Peter Jeffrey Conn, Amy F T Arnsten, Constantinos D Paspalas

Open access · bronzeAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

76 citing papers in PubMed, 110 citations in OpenAlex.

  1. Trial
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  6. Targeting NAAG metabolism restores cognition and synaptic integrity in EcoHIV-infected mice.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Article
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  8. Review
  9. Article
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  12. mGlu2 Receptors in the Basal Ganglia: A New Frontier in Addiction Therapy.Frontiers in bioscience (Landmark edition) · 2025
    Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article

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

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 1 country.

Lu E JinDepartment of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA.
Min WangDepartment of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA.
Veronica C GalvinDepartment of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA.
Taber C LightbourneDepartment of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA.
Peter Jeffrey ConnDepartment of Pharmacology and Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt UniversityMedical Center, Nashville, TN 37232-0697, USA.
Amy F T ArnstenDepartment of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA.
Constantinos D PaspalasDepartment of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA.
Yale University · USVanderbilt University Medical Center · US

Funding

Research Project: Sensory and Multisensory Contributions to AutismU54HD083211 · NICHD · VANDERBILT UNIVERSITY MEDICAL CENTER · PI DYKENS, ELISABETH MAY · 2015 to 2019
$7.1M
NEUROBIOLOGY OF CORTICAL SYSTEMST32NS007224 · NINDS · YALE UNIVERSITY · PI CARDIN, JESSICA A · 1985 to 2025
$4.6M
Potential mGluR treatment of age-related cognitive declineR01AG043430 · NIA · YALE UNIVERSITY · PI ARNSTEN, AMY F.T. · 2013 to 2017
$3.2M
mGluR2/3 influences in primate prefrontal cortex: potential for therapeuticsR01MH100064 · NIMH · YALE UNIVERSITY · PI ARNSTEN, AMY F.T. · 2014 to 2016
$1.5M
NIA NIH HHS R01 AG043430NICHD NIH HHS U54 HD083211NIMH NIH HHS R01 MH100064NINDS NIH HHS T32 NS007224
6 · The paper itself

Abstract

The newly evolved circuits in layer III of primate dorsolateral prefrontal cortex (dlPFC) generate the neural representations that subserve working memory. These circuits are weakened by increased cAMP-K+ channel signaling, and are a focus of pathology in schizophrenia, aging, and Alzheimer's disease. Cognitive deficits in these disorders are increasingly associated with insults to mGluR3 metabotropic glutamate receptors, while reductions in mGluR2 appear protective. This has been perplexing, as mGluR3 has been considered glial receptors, and mGluR2 and mGluR3 have been thought to have similar functions, reducing glutamate transmission. We have discovered that, in addition to their astrocytic expression, mGluR3 is concentrated postsynaptically in spine synapses of layer III dlPFC, positioned to strengthen connectivity by inhibiting postsynaptic cAMP-K+ channel actions. In contrast, mGluR2 is principally presynaptic as expected, with only a minor postsynaptic component. Functionally, increase in the endogenous mGluR3 agonist, N-acetylaspartylglutamate, markedly enhanced dlPFC Delay cell firing during a working memory task via inhibition of cAMP signaling, while the mGluR2 positive allosteric modulator, BINA, produced an inverted-U dose-response on dlPFC Delay cell firing and working memory performance. These data illuminate why insults to mGluR3 would erode cognitive abilities, and support mGluR3 as a novel therapeutic target for higher cognitive disorders.

Indexed as

Action PotentialsAnimalsDose-Response Relationship, DrugExcitatory Amino Acid AgentsEye MovementsFemaleImage Processing, Computer-AssistedMacaca mulattaMagnetic Resonance ImagingMaleMemory, Short-TermNeuronsPost-Synaptic DensityPrefrontal CortexRatsReceptors, Metabotropic GlutamateExcitatory Amino Acid Agentsmetabotropic glutamate receptor 2metabotropic glutamate receptor 3Receptors, Metabotropic GlutamateAlzheimer's diseasedendritic spineGRM2GRM3schizophrenia

Identifiers

PMID28108498
PMCPMC5974790
OpenAlexW2573828241

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.