Cited by 323Neuroinflammation and Neurodegeneration MechanismsTryptophan and brain disordersStress Responses and Cortisol

Evidence for activation of microglia in patients with psychiatric illnesses

Bayer, Thomas A, Buslei, Rolf, Havas, Laszlo, Falkai, Peter·1999·Neuroscience Letters

Abstract

Activation of microglia/macrophages is a key event in response to pathological changes in the CNS. HLA-DR is a valuable immunohistochemical marker that specifically reacts with activated microglia cells. In order to elucidate a potential role of microgliosis in severe psychiatric illnesses, post-mortem frontal cortex and hippocampus of patients with schizophrenia (n = 14) and affective disorder (n = 6) and control specimens (n = 13) were studied. Additionally Alzheimer's disease cases (n = 8) were included as a human model system with typical neurodegenerative alterations and microglia activation. All patient groups revealed subjects with abundant microglia immunostaining (schizophrenia, three patients; affective disorder, one patient; Alzheimer's disease, four patients) in both gray and white matter. This finding provides evidence for distinct neuropathological changes in brains of patients with schizophrenia and affective disorder. The activation of microglia cells, which represent a major part of the brain immune response, may help to unravel the pathophysiological processes in severe psychiatric illnesses.

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Crossref · 10.1016/s0304-3940(99)00545-5

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  • Schizophrenia neuropathology has been reported to be closely associated with cytokines and microglial activation.

    “In this context, the neuropathology of schizophrenia has been reported to be closely associated with cytokines and microglial activation (Bayer et al., 1999; Brown, 2011; Juckel et al., 2011; Meyer et al., 2009; Monji et al., 2009; Najjar et al., 2013; Radewicz et al., 2000; Vuillermot et al., 2010).”

    From Perineuronal nets and schizophrenia: The importance of neuronal coatings (2014) · cites this paper as Bayer et al., 1999

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Authors
Bayer, T. A., Buslei, R., Havas, L., & Falkai, P.
Affiliations
University of Bonn (DE)
Corresponding author
Bayer, Thomas A
Venue
Neuroscience Letters
Publisher
Elsevier BV
Published
1999-08
Volume
271
Issue
2
Pages
126-128
ISSN
0304-3940 (ISSN-L)
OpenAlex
W2069782517
Cited by
323
References
19
Citations by year
2026: 5 · 2025: 5 · 2024: 8 · 2023: 7 · 2022: 11 · 2021: 20 · 2020: 13 · 2019: 13 · 2018: 26 · 2017: 22 · 2016: 18 · 2015: 22 · 2014: 26 · 2013: 27 · 2012: 18
FWCI
2.68
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience Letters (publishedVersion)
  • PubMed (publishedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
microglial activation, HLA-DR, schizophrenia, mood disorders, bipolar disorder, Alzheimer's disease, postmortem brain, frontal cortex, hippocampus, neuroinflammation, brain immune response, neuropathology
MeSH terms
Aged, Mental Disorders, Female, HLA-DR Antigens, Humans, Immunohistochemistry, Macrophage Activation, Male, Middle Aged, Schizophrenia, Microglia, Mood Disorders

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