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Cognitive Impairment That Is Induced by (R)-Ketamine Is Abolished in NMDA GluN2D Receptor Subunit Knockout Mice
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- Kenji Hashimoto
- Center for Forensic Mental Health, Chiba University, Chuo-ku, Chiba, Japan
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- Kazutaka Ikeda
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
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- Yuiko Ikekubo
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
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- Soichiro Ide
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
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- Masayoshi Mishina
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
Bibliographic Information
- Published
- 2019-05-28
- Resource Type
- journal article
- Rights Information
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- http://creativecommons.org/licenses/by-nc/4.0/
- DOI
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- 10.1093/ijnp/pyz025
- Publisher
- Oxford University Press (OUP)
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Description
<jats:title>Abstract</jats:title><jats:p>Although the N-methyl-D-aspartate receptor antagonist ketamine has attracted attention because of its rapid and sustained antidepressant effects in depressed patients, its side effects have raised some concerns. Ketamine is a racemic mixture of equal amounts of the enantiomers (R)-ketamine and (S)-ketamine. The neural mechanisms that underlie the differential effects of these enantiomers remain unclear. We investigated cognitive impairment that was induced by ketamine and its enantiomers in N-methyl-D-aspartate GluN2D receptor subunit knockout (GluN2D-KO) mice. In the novel object recognition test, (RS)-ketamine and (S)-ketamine caused cognitive impairment in both wild-type and GluN2D-KO mice, whereas (R)-ketamine induced such cognitive impairment only in wild-type mice. The present results suggest that the GluN2D subunit plays an important role in cognitive impairment that is induced by (R)-ketamine, whereas this subunit does not appear to be involved in cognitive impairment that is induced by (RS)-ketamine or (S)-ketamine.</jats:p>
Journal
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- International Journal of Neuropsychopharmacology
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International Journal of Neuropsychopharmacology 22 (7), 449-452, 2019-05-28
Oxford University Press (OUP)
