Cited by 457Schizophrenia research and treatmentNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Conserved regional patterns of GABA-related transcript expression in the neocortex of subjects with schizophrenia

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Hashimoto, Takanori, Bazmi, H. Holly, Mirnics, Karoly, Wu, Qiang, Sampson, Allan R., Lewis, David A.·2008·American Journal of Psychiatry

Abstract

OBJECTIVE: Individuals with schizophrenia exhibit disturbances in a number of cognitive, affective, sensory, and motor functions that depend on the circuitry of different cortical areas. The cognitive deficits associated with dysfunction of the dorsolateral prefrontal cortex result, at least in part, from abnormalities in GABA neurotransmission, as reflected in a specific pattern of altered expression of GABA-related genes. Consequently, the authors sought to determine whether this pattern of altered gene expression is restricted to the dorsolateral prefrontal cortex or could also contribute to the dysfunction of other cortical areas in subjects with schizophrenia. METHOD: Real-time quantitative polymerase chain reaction was used to assess the levels of eight GABA-related transcripts in four cortical areas (dorsolateral prefrontal cortex, anterior cingulate cortex, and primary motor and primary visual cortices) of subjects (N=12) with schizophrenia and matched normal comparison subjects. RESULTS: Expression levels of seven transcripts were lower in subjects with schizophrenia, with the magnitude of reduction for each transcript comparable across the four areas. The largest reductions were detected for mRNA encoding somatostatin and parvalbumin, followed by moderate decreases in mRNA expression for the 67-kilodalton isoform of glutamic acid decarboxylase, the GABA membrane transporter GAT-1, and the alpha 1 and delta subunits of GABA(A) receptors. In contrast, the expression of calretinin mRNA did not differ between the subject groups in any of the four areas. CONCLUSIONS: Because the areas examined represent the major functional domains (e.g., association, limbic, motor, and sensory) of the cerebral cortex, our findings suggest that a conserved set of molecular alterations affecting GABA neurotransmission contribute to the pathophysiology of different clinical features of schizophrenia.

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Crossref · 10.1176/appi.ajp.2007.07081223

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Authors
Hashimoto, T., Bazmi, H. H., Mirnics, K., Wu, Q., Sampson, A. R., & Lewis, D. A.
Affiliations
University of Pittsburgh (US)
Venue
American Journal of Psychiatry
Published
2008-04
Volume
165
Issue
4
Pages
479-489
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2085848150
Cited by
457
References
50
Citations by year
2026: 7 · 2025: 8 · 2024: 13 · 2023: 23 · 2022: 11 · 2021: 13 · 2020: 53 · 2019: 19 · 2018: 17 · 2017: 18 · 2016: 29 · 2015: 39 · 2014: 30 · 2013: 32 · 2012: 37
FWCI
24.06
Type
journal article
Language
en
Open access
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (R01MH043784, MH-067234, MH-045156, R01MH067234, P50MH045156, R37MH043784, MH043784)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P30HD015052)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
schizophrenia, GABAergic neurotransmission, neocortex, gene expression, dorsolateral prefrontal cortex, anterior cingulate cortex, primary motor cortex, primary visual cortex, somatostatin, parvalbumin, glutamic acid decarboxylase, GABA transporter 1, GABAA receptor, calretinin, cortical dysfunction
MeSH terms
Adult, Aged, Cause of Death, Female, gamma-Aminobutyric Acid, Glutamate Decarboxylase, Gyrus Cinguli, Humans, Male, Middle Aged, Motor Cortex, Synaptic Transmission, Parvalbumins, Receptors, GABA-A, Schizophrenia, Somatostatin, Tissue Distribution, Polymerase Chain Reaction, Prefrontal Cortex, Neocortex, Gene Expression Profiling

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