Evidence map›Paper›PMID 28213064›Full record

ArticleNeurobiology of learning and memory2017

Juvenile treatment with a novel mGluR2 agonist/mGluR3 antagonist compound, LY395756, reverses learning deficits and cognitive flexibility impairments in adults in a neurodevelopmental model of schizophrenia.

Meng-Lin Li, Yelena Gulchina, Sarah A Monaco, Bo Xing, Brielle R Ferguson, Yan-Chun Li, Feng Li, Xi-Quan Hu, Wen-Jun Gao

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of learning and memory, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.7field-weighted citation impact, top 37% 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

14 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
  5. Animal Models of Relevance to the Schizophrenia Prodrome.Biological psychiatry global open science · 2023
    Review
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  7. Article
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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

9 authors at 3 institutions in 2 countries.

Meng-Lin LiDepartment of Rehabilitation, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China; Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA; Department of Rehabilitation, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou 510180, China.
Yelena GulchinaDepartment of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA.
Sarah A MonacoDepartment of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA.
Bo XingDepartment of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA.
Brielle R FergusonDepartment of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA.
Yan-Chun LiDepartment of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA.
Feng LiDepartment of Neurobiology and Anatomy, Zhongshan School of Medicine, Sun Yat-Sen University, 510275 Guangzhou, China. Electronic address: lifeng@mail.sysu.edu.cn.
Xi-Quan HuDepartment of Rehabilitation, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China. Electronic address: xiquhu@hotmail.com.
Wen-Jun GaoDepartment of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA. Electronic address: wgao@drexelmed.edu.
Drexel University · USSun Yat-sen University · CNThird Affiliated Hospital of Sun Yat-sen University · CN

Funding

Development of NMDAR hypofunction and cognitive deficitsR01MH085666 · NIMH · DREXEL UNIVERSITY · PI GAO, WEN-JUN · 2009 to 2018
$3.8M
Roles of NMDA receptors in schizophrenia pathological processR21MH079117 · NIMH · DREXEL UNIVERSITY · PI GAO, WEN-JUN · 2007 to 2008
$365k
NIMH NIH HHS R01 MH085666NIMH NIH HHS R21 MH079117
6 · The paper itself

Abstract

Schizophrenia (SCZ) is a neurodevelopmental psychiatric disorder, in which cognitive function becomes disrupted at early stages of the disease. Although the mechanisms underlying cognitive impairments remain unclear, N-methyl-D-aspartate receptors (NMDAR) hypofunctioning in the prefrontal cortex (PFC) has been implicated. Moreover, cognitive symptoms in SCZ are usually unresponsive to treatment with current antipsychotics and by onset, disruption of the dopamine system, not NMDAR hypofunctioning, dominates the symptoms. Therefore, treating cognitive deficits at an early stage is a realistic approach. In this study, we tested whether an early treatment targeting mGluR2 would be effective in ameliorating cognitive impairments in the methylazoxymethanol acetate (MAM) model of SCZ. We investigated the effects of an mGluR2 agonist/mGluR3 antagonist, LY395756 (LY39), on the NMDAR expression and function in juveniles, as well as cognitive deficits in adult rats after juvenile treatment. We found that gestational MAM exposure induced a significant decrease in total protein levels of the NMDAR subunit, NR2B, and a significant increase of pNR2BTyr1472 in the juvenile rat PFC. Treatment with LY39 in juvenile MAM-exposed rats effectively recovered the disrupted NMDAR expression. Furthermore, a subchronic LY39 treatment in juvenile MAM-exposed rats also alleviated the learning deficits and cognitive flexibility impairments when tested with a cross-maze based set-shifting task in adults. Therefore, our study demonstrates that targeting dysfunctional NMDARs with an mGluR2 agonist during the early stage of SCZ could be an effective strategy in preventing the development and progression in addition to ameliorating cognitive impairments of SCZ.

Indexed as

Amino Acids, DicarboxylicAnimalsBrainBridged Bicyclo CompoundsCognitionCognition DisordersDisease Models, AnimalLearningMethylazoxymethanol AcetateRatsRats, Sprague-DawleyReceptors, Metabotropic GlutamateReceptors, N-Methyl-D-AspartateSchizophrenia2-amino-4-methylbicyclo(3.1.0)hexane2,6-dicarboxylic acidAmino Acids, DicarboxylicBridged Bicyclo CompoundsMethylazoxymethanol AcetateReceptors, Metabotropic GlutamateReceptors, N-Methyl-D-AspartateAnimal modelCognitive functionMGluR2/3NMDA receptorPrefrontal cortexSchizophrenia

Identifiers

PMID28213064
PMCPMC5860881
OpenAlexW2588921251

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.