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Repeated longitudinal in vivo imaging of neuro-glio-vascular unit at the peripheral boundary of ischemia in mouse cerebral cortex
https://repo.qst.go.jp/records/46457
https://repo.qst.go.jp/records/46457c9a2fbcf-c897-464c-bf88-af4adb2f13da
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-12-03 | |||||
タイトル | ||||||
タイトル | Repeated longitudinal in vivo imaging of neuro-glio-vascular unit at the peripheral boundary of ischemia in mouse cerebral cortex | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Masamoto, Kazuto
× Masamoto, Kazuto× Tomita, Yutaka× Toriumi, Haruki× Aoki, Ichio× Unekawa, Miyuki× Takuwa, Hiroyuki× Itoh, Yoshiaki× Suzuki, Norihiro× Kanno, Iwao× 正本 和人× 冨田 裕× 鳥海 春樹× 青木 伊知男× 畝川 美悠紀× 田桑 弘之× 菅野 巖 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Understanding the cellular events evoked at the peripheral boundary of cerebral ischemia is critical for therapeutic outcome against the insult of cerebral ischemia. The present study reports a repeated longitudinal imaging for cellular-scale changes of neuro-glia-vascular unit at the boundary of cerebral ischemia in mouse cerebral cortex in vivo. Two-photon microscopy was used to trace the longitudinal changes of cortical microvasculature and astroglia following permanent middle cerebral artery occlusion (MCAO). We found that sulforhodamine 101 (SR101), a previously-known marker of astroglia, provide a bright signal in the vessels soon after the intraperitoneal injection, and that intensity was sufficient to detect the microvasculature up to a depth of 0.8 mm. After 5–8 h from the injection of SR101, cortical astroglia was also imaged up to a depth of 0.4 mm. After 1 day from MCAO, some microvessels showed a closure of the lumen space in the occluded MCA territory, leading to a restructuring of microvascular networks up to 7 days after MCAO. At the regions of the distorted microvasculature, an increase in the number of cells labeled with SR101 was detected, which was found as due to labeled neurons. Immunohistochemical results further showed that ischemia provokes neuronal uptake of SR101, which delineate a boundary between dying and surviving cells at the peripheral zone of ischemia in vivo. Finally, reproducibility of the MCAO model was evaluated with magnetic resonance imaging (MRI) in a different animal group, which showed the consistent infarct volume at the MCA territory over the subjects. | |||||
書誌情報 |
Neuroscience 巻 212, p. 190-200, 発行日 2012-04 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0306-4522 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1016/j.neuroscience.2012.03.034 | |||||
関連名称 | http://dx.doi.org/10.1016/j.neuroscience.2012.03.034 |