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ID 47061
file
creator
Ishida, Keishi
Saiki, Takashi
Umeda, Kanae
Miyara, Masatsugu
subject
tributyltin
glutamate receptor 2
developmental neurotoxicity
NDC
Medical sciences
abstract
Tributyltin (TBT), a common environmental contaminant, is widely used as an antifouling agent in paint. We previously reported that exposure of primary cortical neurons to TBT in vitro decreased the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor subunit glutamate receptor 2 (GluR2) expression and subsequently increased neuronal vulnerability to glutamate. Therefore, to identify whether GluR2 expression also decreases after TBT exposure in vivo, we evaluated the changes in GluR2 expression in the mouse brain after prenatal or postnatal exposure to 10 and 25 ppm TBT through pellet diets. Although the mean feed intake and body weight did not decrease in TBT-exposed mice compared with that in control mice, GluR2 expression in the cerebral cortex and hippocampus decreased after TBT exposure during the prenatal period. These results indicate that a decrease in neuronal GluR2 may be involved in TBT-induced neurotoxicity, especially during the fetal period.
description
This study was supported by JSPS KAKENHI (B) Grant Numbers 23310047 (to Y.K.), 15H02826 (to Y.K.), and a Grant-in-Aid for JSPS Fellows Number 14J06534 (to K.I.).
journal title
Biological and Pharmaceutical Bulletin
volume
Volume 40
issue
Issue 7
start page
1121
end page
1124
date of issued
2017-07-01
publisher
The Pharmaceutical Society of Japan
issn
0918-6158
1347-5215
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
© 2017 The Pharmaceutical Society of Japan
relation url
department
Graduate School of Biomedical & Health Sciences