Evidence map›Paper›PMID 37073488›Full record

ArticleThe American journal of psychiatry2023

The Nature of Prefrontal Cortical GABA Neuron Alterations in Schizophrenia: Markedly Lower Somatostatin and Parvalbumin Gene Expression Without Missing Neurons.

Samuel J Dienel, Kenneth N Fish, David A Lewis

Open access · greenAbstract read
In one paragraph

Article in The American journal of psychiatry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 2 pooled it
9.4field-weighted citation impact, top 1% 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

46 citing papers in PubMed, 2 syntheses or guidelines pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Parvalbumin interneurons under stress: converging mechanisms of vulnerability.The international journal of neuropsychopharmacology · 2026
    Review
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  7. Schizophrenia: from mechanism to therapy.Science China. Life sciences · 2026
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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

3 authors at 1 institution in 1 country.

Samuel J DienelMedical Scientist Training Program (Dienel) and Translational Neuroscience Program, Department of Psychiatry (Dienel, Fish, Lewis), School of Medicine, University of Pittsburgh, Pittsburgh; Department of Neuroscience, Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh (Dienel, Lewis); Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh (Dienel, Lewis).
Kenneth N FishMedical Scientist Training Program (Dienel) and Translational Neuroscience Program, Department of Psychiatry (Dienel, Fish, Lewis), School of Medicine, University of Pittsburgh, Pittsburgh; Department of Neuroscience, Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh (Dienel, Lewis); Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh (Dienel, Lewis).
David A LewisMedical Scientist Training Program (Dienel) and Translational Neuroscience Program, Department of Psychiatry (Dienel, Fish, Lewis), School of Medicine, University of Pittsburgh, Pittsburgh; Department of Neuroscience, Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh (Dienel, Lewis); Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh (Dienel, Lewis).
Center for the Neural Basis of Cognition · US

Funding

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
Deciphering the GABA neuron alterations in schizophreniaR01MH119701 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FISH, KENNETH N · 2019 to 2023
$2.2M
Request for an Olympus VS200 slide scannerS10MH126905 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FISH, KENNETH N, WATKINS, SIMON C · 2021 to 2021
$370k
Somatostatin Interneurons in Prefrontal Cortical Microcircuits in SchizophreniaF30MH124329 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DIENEL, SAMUEL JAMES · 2020 to 2024
$201k
NIMH NIH HHS F30 MH124329NIMH NIH HHS R01 MH043784NIMH NIH HHS R01 MH119701NIMH NIH HHS R37 MH043784NIMH NIH HHS S10 MH126905
6 · The paper itself

Abstract

objectiveIn schizophrenia, somatostatin (SST) and parvalbumin (PV) mRNA levels are lower in the dorsolateral prefrontal cortex (DLPFC), but it remains unclear whether these findings reflect lower transcript levels per neuron, fewer neurons, or both. Distinguishing among these alternatives has implications for understanding the pathogenesis of, and developing new treatments for, DLPFC dysfunction in schizophrenia.

methodsTo identify SST and PV neurons in postmortem human DLPFC, the authors used fluorescent in situ hybridization to label cells expressing two transcripts not altered in schizophrenia: vesicular GABA transporter (VGAT; a marker of all GABA neurons) and SOX6 (a marker of only SST and PV neurons). In cortical layers 2 and 4, where SST and PV neurons, respectively, are differentially enriched, levels of SST and PV mRNA per neuron and the relative densities of SST-, PV-, and VGAT/SOX6-positive neurons were quantified.

resultsIn individuals with schizophrenia, mRNA levels per positive neuron were markedly and significantly lower for SST in both layers (effect sizes >1.48) and for PV only in layer 4 (effect size=1.14) relative to matched unaffected individuals. In contrast, the relative densities of all SST-, PV-, or VGAT/SOX6-positive neurons were unaltered in schizophrenia.

conclusionsNovel multiplex fluorescent in situ hybridization techniques permit definitive distinction between cellular levels of transcripts and the presence of neurons expressing those transcripts. In schizophrenia, pronounced SST and PV mRNA deficits are attributable to lower levels of each transcript per neuron, not fewer neurons, arguing against death or abnormal migration of these neurons. Instead, these neurons appear to be functionally altered and thus amenable to therapeutic interventions.

Indexed as

SchizophreniaGABAergic NeuronsGene ExpressionHumansIn Situ Hybridization, FluorescenceParvalbuminsPrefrontal CortexRNA, MessengerSomatostatinParvalbuminsPVALB protein, humanRNA, MessengerSomatostatinSST protein, humanCognitionCognition/Learning/MemoryFluorescent In Situ HybridizationPostmortemSchizophrenia Spectrum and Other Psychotic Disorders

Identifiers

PMID37073488
PMCPMC10330559
OpenAlexW4366351853

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.