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  1. 原著論文

Neuronal deterioration associated with hyperexcitability under mild chronic cerebral hypoperfusion.

https://repo.qst.go.jp/records/2002830
https://repo.qst.go.jp/records/2002830
155e9702-09ac-41fd-ac9f-d3ae8c2cb1e0
アイテムタイプ 学術雑誌論文 / Journal Article(1)
公開日 2026-02-25
タイトル
タイトル Neuronal deterioration associated with hyperexcitability under mild chronic cerebral hypoperfusion.
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 Takuya Urushihata

× Takuya Urushihata

Takuya Urushihata

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Manami Takahashi

× Manami Takahashi

Manami Takahashi

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Masafumi Shimojo

× Masafumi Shimojo

Masafumi Shimojo

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Yuhei Takado

× Yuhei Takado

Yuhei Takado

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Nobuhiro Nitta

× Nobuhiro Nitta

Nobuhiro Nitta

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Yosuke Tajima

× Yosuke Tajima

Yosuke Tajima

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Kazuto Masamoto

× Kazuto Masamoto

Kazuto Masamoto

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Iwao Kanno

× Iwao Kanno

Iwao Kanno

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Yutaka Tomita

× Yutaka Tomita

Yutaka Tomita

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Naruhiko Sahara

× Naruhiko Sahara

Naruhiko Sahara

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Masaya Takahashi

× Masaya Takahashi

Masaya Takahashi

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Takayuki Obata

× Takayuki Obata

Takayuki Obata

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Hiroshi Ito

× Hiroshi Ito

Hiroshi Ito

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Tetsuro Yamashita

× Tetsuro Yamashita

Tetsuro Yamashita

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Tetsuya Suhara

× Tetsuya Suhara

Tetsuya Suhara

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Makoto Higuchi

× Makoto Higuchi

Makoto Higuchi

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Hiroyuki Takuwa

× Hiroyuki Takuwa

Hiroyuki Takuwa

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抄録
内容記述タイプ Abstract
内容記述 Chronic cerebral hypoperfusion (CCH) has been indicated to impair cognitive and diverse brain functions. However, the neural mechanisms linking these cerebrovascular and phenotypic alterations remain unclear. Here, we investigated the effect of CCH on neuronal activity in male mice with unilateral common carotid artery occlusion using optical imaging and MRI. Our examinations revealed enhanced neuronal activity in concurrence with increased glutamate and tissue acidosis up to seven days after occlusion. At 21-28 days after occlusion, neuronal activity decreased below baseline, while the acidotic but not the hyperglutamatergic state persisted. Notably, pharmacological blockade of the N-methyl-D-aspartate-type glutamate receptor, initiated at an early stage of CCH, suppressed the onset of neuronal hyperexcitation and subsequent deficits in neuronal activity. Altogether, we provide experimental evidence that CCH induces a glutamate surge and results in neuronal hyperexcitation at an early phase, which thereafter gives rise to a non-lethal but progressive deterioration of neuronal functions.
書誌情報 Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

巻 45, 号 10, p. 1932-1946, 発行日 2025-10
出版者
出版者 SAGE Publications
ISSN
収録物識別子タイプ ISSN
収録物識別子 1559-7016
PubMed番号
識別子タイプ PMID
関連識別子 40370304
DOI
識別子タイプ DOI
関連識別子 10.1177/0271678X251328971
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