number of downloads : ?
File
language
eng
Attribute_del
astrocytes
forced swimming test
Gunn rat
hippocampus
microglia
tail suspension test
Author
Tsumori, Toshiko
Limoa, Erlyn Department of Psychiatry, Department of Psychiatry, Hasanuddin University, Makassar, South Sulawesi, IndonesiaShimane University, Izumo, Japan /
Azis, Ilhamuddin A Department of Psychiatry, Department of Psychiatry, Hasanuddin University, Makassar, South Sulawesi, IndonesiaShimane University, Izumo, Japan /
河野 公範 Department of Psychiatry, Shimane University, Izumo, Japan
Liaury, Kristian Department of Psychiatry, Hasanuddin University, Makassar, South Sulawesi, Indonesia
Abdullah, Rostia A Department of Psychiatry, Department of Psychiatry, Hasanuddin University, Makassar, South Sulawesi, IndonesiaShimane University, Izumo, Japan /
Inoue, Ken Health Service Center, Kochi University, Kochi, Japan
Description
Abstract
Introduction: Recent studies imply that glial activation plays a role in the pathogenesis of psychiatric disorders, such as schizophrenia and major depression. We previously demonstrated that Gunn rats with hyperbilirubinemia show congenital gliosis
and schizophrenia-like behavior.
Methods: As it has been suggested that major depression involves glial activation associated with neuroinflammation, we examined whether Gunn rats show depression-like behavior using the forced swimming test (FST) and the tail suspension test (TST). In addition, we quantitatively evaluated both microgliosis and astrogliosis in the hippocampus of Gunn rats using immunohistochemistry analysis of the microglial marker ionized calcium-binding adaptor molecule (Iba) 1 and the astrocytic marker S100B.
Results: Both the FST and TST showed that immobility time of Gunn rats was significantly longer than that of normal control Wistar rats, indicating that Gunn rats are somewhat helpless, a sign of depression-like behavior. In the quantification of immunohistochemical analysis, Iba1immunoreactivity in the dentate gyrus (DG), cornu ammonis (CA) 1, and CA3 and the number of Iba1-positive cells in the CA1 and CA3 were significantly increased in Gunn rats compared to Wistar rats. S100B immunoreactivity in the DG, CA1, and CA3 and the number of S100B-positive cells in the DG and CA3 were significantly increased in Gunn rats compared to Wistar rats.
Conclusion: Our findings suggest that both microglia and astrocyte are activated in Gunn rats and their learned helplessness could be related to glial activation.
Journal Title
Brain and Behavior
Volume
8
Issue
8
Start Page
[1]
End Page
[9]
Published Date
2018-06-28
DOI
Publisher
Wiley Periodicals, Inc.
NII Type
Journal Article
Format
PDF
Text Version
出版社版
OAI-PMH Set
Faculty of Medicine