Presentation 2017-11-24
Extracellular diffusion analysis in the mouse cortex using in vivo integrative optical imaging method
Yui Hiroya, Kenya Tanaka, Yuto Yoshida, Akihiro Karashima, Mitsuyuki Nakao, Norihiro Katayama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The brain has an unique waste clearance system, called glymphatic system, which is activated during sleep state. In order to know the mechanism of the state-dependency of the system, various methods were applied to measure diffusion property of brain parenchyma. However, the mechanism is still unknown due to the low time resolution of those methods. In this study, by using repetitive integrative optical imaging method, we measured the diffusion property of brain parenchyma in the primary somatosensory cortex of a mouse under the isoflurane anesthetized condition. As a result, we found that there is a drift of diffusion in brain parenchyma. In addition, we found weak correlation between variance of EEG and diffusion coefficient. These results suggest that directed cerebrospinal fluid flows in the brain and the diffusion property changes depending on the concentration of anesthesia.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Glymphatic system / Extracellular space / Integrative Optical Imaging
Paper # MBE2017-47
Date of Issue 2017-11-17 (MBE)

Conference Information
Committee MBE / NC
Conference Date 2017/11/24(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tohoku University
Topics (in Japanese) (See Japanese page)
Topics (in English) BCI/BMI, generall
Chair Kazuki Nakajima(Univ. of Toyama) / Masafumi Hagiwara(Keio Univ.)
Vice Chair Masaki Kyoso(TCU) / Yutaka Hirata(Chubu Univ.)
Secretary Masaki Kyoso(Toyama Pref. Univ.) / Yutaka Hirata(Kindai Univ.)
Assistant Kim Juhyon(Univ. of Toyama) / Takumi Kobayashi(YNU) / Yoshihisa Shinozawa(Keio Univ.) / Keiichiro Inagaki(Chubu Univ.)

Paper Information
Registration To Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Extracellular diffusion analysis in the mouse cortex using in vivo integrative optical imaging method
Sub Title (in English)
Keyword(1) Glymphatic system
Keyword(2) Extracellular space
Keyword(3) Integrative Optical Imaging
1st Author's Name Yui Hiroya
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Kenya Tanaka
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Yuto Yoshida
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
4th Author's Name Akihiro Karashima
4th Author's Affiliation Tohoku Institute of Technology(TOHTECH)
5th Author's Name Mitsuyuki Nakao
5th Author's Affiliation Tohoku University(Tohoku Univ.)
6th Author's Name Norihiro Katayama
6th Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2017-11-24
Paper # MBE2017-47
Volume (vol) vol.117
Number (no) MBE-324
Page pp.pp.5-8(MBE),
#Pages 4
Date of Issue 2017-11-17 (MBE)