Evidence map›Paper›PMID 31296415›Full record

ArticleSchizophrenia research2020

Markers of glutamate and GABA neurotransmission in the prefrontal cortex of schizophrenia subjects: Disease effects differ across anatomical levels of resolution.

Samuel J Dienel, John F Enwright, Gil D Hoftman, David A Lewis

Abstract read
In one paragraph

Article in Schizophrenia research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Schizophrenia: from mechanism to therapy.Science China. Life sciences · 2026
    Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Glutamatergic dysfunction in Schizophrenia.Translational psychiatry · 2022
    Review
  13. Ketamine plus Alcohol: What We Know and What We Can Expect about This.International journal of molecular sciences · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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.

Samuel J DienelMedical Scientist Training Program, University of Pittsburgh, United States of America; Translational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, United States of America; Center for the Neural Basis of Cognition, Carnegie Mellon University, United States of America; Department of Neuroscience, Dietrich School of Arts and Sciences, University of Pittsburgh, United States of America.
John F EnwrightTranslational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, United States of America.
Gil D HoftmanTranslational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, United States of America.
David A LewisTranslational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, United States of America; Department of Neuroscience, Dietrich School of Arts and Sciences, University of Pittsburgh, United States of America. Electronic address: lewisda@upmc.edu.

Funding

TRAINING PROGRAM FOR MD/PHD STUDENTST32GM008208 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI STEINMAN, RICHARD A · 1987 to 2021
$15.4M
Statistics and Data Management CoreP50MH103204 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI OLSON, CARL ROGER · 2014 to 2018
$10.8M
SCHIZOPHRENIA AND CORTICAL DOPAMINE/GABA INTERACTIONSR01MH043784 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LEWIS, DAVID A · 1988 to 2023
$7.2M
GABA Neurons and Cortical Circuitry in SchizophreniaR37MH043784 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LEWIS, DAVID A · 2001 to 2010
$6.8M
NIGMS NIH HHS T32 GM008208NIMH NIH HHS P50 MH103204NIMH NIH HHS R01 MH043784NIMH NIH HHS R37 MH043784
6 · The paper itself

Abstract

Cognitive dysfunction in individuals with schizophrenia is thought to reflect, at least in part, altered levels of excitatory and inhibitory neurotransmission in the dorsolateral prefrontal cortex (DLPFC). Studies of the postmortem human brain allow for interrogation of the disease-related alterations in markers of excitatory and inhibitory neurotransmission at different levels of anatomical resolution. Here, we re-analyzed six published datasets from postmortem studies of schizophrenia to assess molecular markers of glutamate and GABA neurotransmission in the DLPFC at three levels of anatomical resolution: 1) total cortical gray matter, 2) gray matter restricted to layer 3, and 3) a layer 3 local circuit composed of excitatory pyramidal cells and inhibitory, parvalbumin-containing, GABA neurons. We formulated composite measures of glutamate and GABA neurotransmission from z-scores of key transcripts that regulate these functions. Relative to unaffected comparison subjects, the composite glutamate measure was higher in schizophrenia subjects in total gray matter homogenates but lower in samples restricted to layer 3 or the layer 3 local circuit. The composite index of GABA neurotransmission did not differ between subject groups in total gray matter homogenates but was lower in schizophrenia subjects in layer 3 and lower still in the local layer 3 circuit. These findings suggest that the balance of excitation and inhibition in the DLPFC of schizophrenia subjects differs depending on the level of anatomical resolution studied, highlighting the importance of layer- and cell type-specific studies to understand disease-related alterations in cortical circuitry.

Indexed as

Schizophreniagamma-Aminobutyric AcidGlutamic AcidHumansPrefrontal CortexSynaptic Transmissiongamma-Aminobutyric AcidGlutamic AcidE/I balanceGABAGlutamateLayer 3Prefrontal cortexSchizophrenia

Identifiers

PMID31296415
PMCPMC6946893

What OpenQuestion holds

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Registered trials

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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.