Evidence map›Paper›PMID 21094213›Full record

ArticleNeuroscience letters2011

Failure of NMDA receptor hypofunction to induce a pathological reduction in PV-positive GABAergic cell markers.

Michael A Benneyworth, Alexander S Roseman, Alo C Basu, Joseph T Coyle

Open access · greenAbstract read
In one paragraph

Article in Neuroscience letters, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Depolarizing GABAScience advances · 2021
    Article
  5. Article
  6. Review
  7. The Role of Serine Racemase in the Pathophysiology of Brain Disorders.Advances in pharmacology (San Diego, Calif.) · 2018
    Review
  8. Article
  9. Article
  10. Epigenetic mechanisms in schizophrenia.Progress in biophysics and molecular biology · 2015
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
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 1 country.

Michael A BenneyworthLaboratory for Psychiatric and Molecular Neuroscience, McLean Hospital, 115 Mill St., MRC 114, Belmont, MA 02478, United States. mbenneyworth@mclean.harvard.edu
Alexander S Roseman
Alo C Basu
Joseph T Coyle
Harvard University · USMcLean Hospital · US

Funding

NMDA RECEPTOR FUNCTION IN SCHIZOPHRENIAP50MH060450 · NIMH · MC LEAN HOSPITAL (BELMONT, MA) · PI COYLE, JOSEPH T. · 2000 to 2010
$15.4M
PSYCHOSIS AND BRAIN GLUTAMATER01MH051290 · NIMH · MC LEAN HOSPITAL (BELMONT, MA) · PI COYLE, JOSEPH T. · 1994 to 2017
$5.0M
NIMH NIH HHS MH05129NIMH NIH HHS P50 MH060450NIMH NIH HHS R01 MH051290
6 · The paper itself

Abstract

Reduction in cortical presynaptic markers, notably parvalbumin (PV), for the chandelier subtype of inhibitory γ-amino-butyric acid (GABA) interneurons is a highly replicated post-mortem finding in schizophrenia. Evidence from genetic and pharmacological studies implicates hypofunction of N-methyl-d-aspartate receptor (NMDAR)-mediated glutamatergic signaling as a critical component of the pathophysiology of schizophrenia. Serine racemase (SR) produces the endogenous NMDAR co-agonist d-serine, and disruption of the SR gene results in reduced NMDAR signaling. SR null mutant (-/-) mice were used to study the link between NMDAR hypofunction and decreased PV expression, assessed by immunoreactive (IR) cell density in the medial prefrontal cortex and hippocampus and protein levels in brain homogenates from the frontal cortex and hippocampus. Contrary to expectations, SR -/- mice showed modest elevations in PV-IR cell density and no difference in PV expression in brain homogenate. To control for these surprising results, we investigated PV expression in mice and rats following subchronic phencyclidine or ketamine treatments in adulthood. PV expression was not affected by drug these treatment in either species, failing to reproduce previously published findings. Our findings challenge the hypothesis that pathological deficits in PV expression are simply a consequence of NMDAR hypofunction.

Indexed as

AnimalsBlotting, WesternBrainDisease Models, AnimalExcitatory Amino Acid Antagonistsgamma-Aminobutyric AcidGlutamate DecarboxylaseImmunohistochemistryKetamineMaleMiceMice, Inbred C57BLMice, KnockoutNeuronsParvalbuminsPhencyclidineExcitatory Amino Acid Antagonistsgamma-Aminobutyric AcidGlutamate Decarboxylaseglutamate decarboxylase 1KetamineParvalbuminsPhencyclidineRacemases and EpimerasesReceptors, N-Methyl-D-AspartateSerine Racemase

Identifiers

PMID21094213
PMCPMC3025532
OpenAlexW1968303397

What OpenQuestion holds

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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.