Evidence map›Paper›PMID 36350376›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2023

Reduced cortical neuron number and neuron density in schizophrenia with focus on area 24: a post-mortem case-control study.

Richard Gaus, Melanie Popal, Helmut Heinsen, Andrea Schmitt, Peter Falkai, Patrick R Hof, Christoph Schmitz, Alisa Vollhardt

Open access · hybridAbstract read
In one paragraph

Article in European archives of psychiatry and clinical neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 14 citations in OpenAlex.

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  12. Cellular pathology in the limbic system in schizophrenia.European archives of psychiatry and clinical neuroscience · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 3 countries.

Richard GausDepartment of Neuroanatomy, Institute of Anatomy, Faculty of Medicine, LMU Munich, Pettenkoferstr. 11, 80336, Munich, Germany.
Melanie PopalDepartment of Neuroanatomy, Institute of Anatomy, Faculty of Medicine, LMU Munich, Pettenkoferstr. 11, 80336, Munich, Germany.
Helmut HeinsenMorphological Brain Research Unit, Department of Psychiatry, University of Würzburg, Würzburg, Germany.
Andrea SchmittDepartment of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany.
Peter FalkaiDepartment of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany.
Patrick R HofNash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Christoph Schmitz *Department of Neuroanatomy, Institute of Anatomy, Faculty of Medicine, LMU Munich, Pettenkoferstr. 11, 80336, Munich, Germany.
Alisa Vollhardt *Department of Neuroanatomy, Institute of Anatomy, Faculty of Medicine, LMU Munich, Pettenkoferstr. 11, 80336, Munich, Germany. alisa.vollhardt@med.uni-muenchen.de.ORCID http://orcid.org/0000-0003-4613-4998
Ludwig-Maximilians-Universität München · DEAllen Institute for Brain Science · USLMU Klinikum · DEUniversidade de São Paulo · BRUniversity of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Structural and functional abnormalities of the anterior cingulate cortex (ACC) have frequently been identified in schizophrenia. Alterations of von Economo neurons (VENs), a class of specialized projection neurons, have been found in different neuropsychiatric disorders and are also suspected in schizophrenia. To date, however, no definitive conclusions can be drawn about quantitative histologic changes in the ACC in schizophrenia because of a lack of rigorous, design-based stereologic studies. In the present study, the volume, total neuron number and total number of VENs in layer V of area 24 were determined in both hemispheres of postmortem brains from 12 male patients with schizophrenia and 11 age-matched male controls. To distinguish global from local effects, volume and total neuron number were also determined in the whole area 24 and whole cortical gray matter (CGM). Measurements were adjusted for hemisphere, age, postmortem interval and fixation time using an ANCOVA model. Compared to controls, patients with schizophrenia showed alterations, with lower mean total neuron number in CGM (- 14.9%, P = 0.007) and in layer V of area 24 (- 21.1%, P = 0.002), and lower mean total number of VENs (- 28.3%, P = 0.027). These data provide evidence for ACC involvement in the pathophysiology of schizophrenia, and complement neuroimaging findings of impaired ACC connectivity in schizophrenia. Furthermore, these results support the hypothesis that the clinical presentation of schizophrenia, particularly deficits in social cognition, is associated with pathology of VENs.

Indexed as

Gyrus CinguliSchizophreniaBrainCase-Control StudiesHumansMaleNeuronsAnterior cingulate cortexArea 24Layer VSchizophreniaStereologyVon Economo neuron

Identifiers

PMID36350376
PMCPMC10449727
OpenAlexW4308636522

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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.