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Understanding the neural modification effects by augmentation of cerebral blood flow: Creation of experimental evidence for prevention of cognitive decline

Research Project

Project/Area Number 19K07795
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 51010:Basic brain sciences-related
Research InstitutionThe University of Electro-Communications

Principal Investigator

Masamoto Kazuto  電気通信大学, 大学院情報理工学研究科, 教授 (60455384)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords脳循環代謝 / 神経血管連関 / 医用画像工学 / 脳微小循環 / 神経血管アンカップリング / 神経血管カップリング / 大規模画像解析 / 行動解析 / 遠隔モニター / 運動と脳機能 / 二光子顕微鏡 / 脳血流
Outline of Research at the Start

認知症は、高齢者の5人に1人が罹患する恐れのある深刻な脳の疾患である.しかし、認知症に対する根本的な治療法は未だ確立されていない.これまでの研究によって、認知症の発症および病態の増悪には、脳の血流の低下が密接に関係することが分かっている.しかし、脳の血流低下と認知症の発症との因果関係は明らかではない.そこで、本研究では認知症のモデルマウスと応募者が得意とする各種in vivo 細胞イメージングの手法を用いて認知症における脳の血流低下と認知症発症との因果関係を明らかにし、認知症に対する確度の高い予防法を確立することを目的とする.

Outline of Final Research Achievements

Dementia is a serious brain disease that causes 20% of older people. However, there is still no radical solution to dementia. Previous studies have shown that decreased cerebral blood flow is closely associated with the onset and exacerbation of dementia. The purpose of this study was to evaluate the vascular reactivity of the brain during brain activity, and to establish experimental data that enable the early detection of dementia and the development of effective prevention methods. In addition, by clarifying the effect on cognitive function when cerebrovascular reactivity is suppressed, the causal link between impaired cerebrovascular functions and the onset/ progression of dementia will be determined.

Academic Significance and Societal Importance of the Research Achievements

本研究では、脳の血管機能を評価する手法として安静時の脳血流の揺らぎに注目する手法を提案した。脳血流の揺らぎは脳の毛細血管の密度を反映する。脳の毛細血管の密度を維持するためには、脳血流を適度に維持することが重要であると考えられる。このことは、脳毛細血管血流の不全によって脳毛細血管が遅発性に脱落するという実験結果とも符合する。したがって今後は、老化の過程のみならず、発達成長における脳毛細血管ネットワークの形成度に関して将来的な認知症発症との因果関係について明らかにする必要がある。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (40 results)

All 2022 2021 2020 2019

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (35 results) (of which Int'l Joint Research: 12 results,  Invited: 15 results)

  • [Journal Article] Quantification of the Behavior of the Experimental Animal from the Animal Movies:Studies on the Effects of the Image Acquisition Rate2021

    • Author(s)
      村田 樹里、濱谷 ひかる、井上 幹太、矢野 祐希、吉田 智毅、新澤 智也、須貸 拓馬、正本 和人
    • Journal Title

      Transactions of Japanese Society for Medical and Biological Engineering

      Volume: 59 Issue: 6 Pages: 139-145

    • DOI

      10.11239/jsmbe.59.139

    • NAID

      130008158128

    • ISSN
      1347-443X, 1881-4379
    • Year and Date
      2021-12-10
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Error Evaluation for Automated Diameter Measurements of Cerebral Capillaries Captured with Two-Photon Laser Scanning Fluorescence Microscopy.2021

    • Author(s)
      Suzuki H, Sugashi T, Takeda H, Takuwa H, Kanno I, Masamoto K.
    • Journal Title

      Adv Exp Med Biol.

      Volume: 1269 Pages: 241-245

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Time Series Tracking of Cerebral Microvascular Adaptation to Hypoxia and Hyperoxia Imaged with Repeated In Vivo Two-Photon Microscopy.2021

    • Author(s)
      Sugashi T, Niizawa T, Suzuki H, Takuwa H, Unekawa M, Tomita Y, Kanno I, Masamoto K.
    • Journal Title

      Adv Exp Med Biol.

      Volume: 1269 Pages: 323-327

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three‐dimensional microvascular network reconstruction from in vivo images with adaptation of the regional inhomogeneity in the signal‐to‐noise ratio2021

    • Author(s)
      Sugashi Takuma、Yuki Hiroya、Niizawa Tomoya、Takuwa Hiroyuki、Kanno Iwao、Masamoto Kazuto
    • Journal Title

      Microcirculation

      Volume: in press Issue: 5

    • DOI

      10.1111/micc.12697

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Differential pial and penetrating arterial responses examined by optogenetic activation of astrocytes and neurons2021

    • Author(s)
      Hatakeyama N., Unekawa M., Tomita Y. Suzuki N. Nakahara J. Takuwa H., Kanno I., Matsui K., Tanaka K.F., Masamoto K.
    • Journal Title

      J Cereb Blood Flo Metab

      Volume: - Issue: 10 Pages: 2676-2689

    • DOI

      10.1177/0271678x211010355

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Image Analysis of Blood Cell Interactions in the Cerebral Microcirculation of the Anesthetized Rat2022

    • Author(s)
      Tomoya NIIZAWA, Ruka SAKURABA, Takuma SUGASHI, Maho KOTANI, Iwao KANNO, Kazuto MASAMOTO
    • Organizer
      第47回 日本微小循環学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Structural and functional plasticity of cerebral microcirculation2022

    • Author(s)
      正本和人
    • Organizer
      第47回 日本微小循環学会総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 教育講演4「神経血管カップリングの基礎と応用」2022

    • Author(s)
      正本和人
    • Organizer
      第24回日本ヒト脳機能マッピング学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Image-based analysis of a flow velocity gradient at the cerebral capillary bifurcations.2021

    • Author(s)
      新澤智也、桜庭瑠華、須貸拓馬、菅野 巖、正本 和人
    • Organizer
      第60回日本生体医工学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Automated quantification of vascular diameters at the branch captured with two-photon microscopy.2021

    • Author(s)
      Takuma Sugashi, Tomoya Niizawa, Hiroki Suzuki, Kazuto Masamoto
    • Organizer
      第60回日本生体医工学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Neurovascular Coupling: Spatiotemporal Coordination of Brain Blood Flow during Brain Function.2021

    • Author(s)
      正本和人
    • Organizer
      第60回日本生体医工学会大会「脳の機能とメカニクス」
    • Related Report
      2021 Annual Research Report
  • [Presentation] 大脳皮質毛細血管分岐・合流部における赤血球流れに関する時空間動態解析2021

    • Author(s)
      新澤智也、櫻庭瑠華、須貸拓馬、菅野巖、正本和人
    • Organizer
      第64回日本脳循環代謝学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Manipulation of cerebral microcirculation flow via photo-stimulation to vascular mural cells with optogenetics.2021

    • Author(s)
      Juri Murata, Mitsuhiro Oishi, Miyuki Unekawa, Iwao Kanno, Yutaka Tomita, Kenji Tanaka, Jin Nakahara, Kazuto Masamoto
    • Organizer
      第46回 日本微小循環学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 神経血管カップリングの可視化と光操作2021

    • Author(s)
      正本和人
    • Organizer
      日本脳神経外科学会 第80回学術総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 脳毛細血管における血流動態イメージング2021

    • Author(s)
      正本和人
    • Organizer
      第11回日本脳血管・認知症学会総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 光を用いた脳微小循環動態のイメージングと操作2021

    • Author(s)
      正本和人、村田樹里、畝川美悠紀、冨田裕、菅野巖
    • Organizer
      第37回スパズムシンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Focal and conducted vasodilation in the neurovascular coupling2021

    • Author(s)
      Masamoto K
    • Organizer
      IBS Conference: Brain Science Functional Interplay between Neurons and Glia
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Imaging and quantification of capillary network flow.2021

    • Author(s)
      Masamoto K
    • Organizer
      Brain Capillary Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Red blood cell flow dynamics at bifurcations of the brain capillaries.2021

    • Author(s)
      Masamoto K, Sakuraba R, Niizawa T
    • Organizer
      The 7th Biomedical Imaging and Sensing Conference (BISC2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Two-photon imaging of BOLD fMRI physiology.2021

    • Author(s)
      Kazuto Masamoto
    • Organizer
      Pre-Con II. Stroke in the Lab World: Novel Approaches in Studying Brain Metabolism and Function
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 【教育講演】光を用いた脳微小循環動態のイメージングと操作2021

    • Author(s)
      正本和人、村田樹里、畝川美悠紀、冨田裕、菅野巖
    • Organizer
      第37回スパズムシンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 脳毛細血管分岐における赤血球の流れと血管の構造2020

    • Author(s)
      櫻庭瑠華、日下智哉、須貸拓馬、菅野巖、正本和人
    • Organizer
      第63回日本脳循環代謝学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Optogenetic manipulation of cerebral microcirculation by transcranial photostimulation to the channelrhodopsin-2 expressing mouse brains.2020

    • Author(s)
      Murata J, Hatakeyana N, Unekawa M, Kanno I, Tomita Y, Tanaka K, Nakahara J, Masamoto K.
    • Organizer
      第45回日本微小循環学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Spatiotemporal Correlation Analysis of the Capillary Red Blood Cell Flow and Vessel Diameters in the Anesthetized Rat Cortex.2020

    • Author(s)
      Sakuraba R, Kusaka T, Sugashi T, Masamoto K
    • Organizer
      第45回日本微小循環学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 光刺激による脳血流の低下と血管内塞栓物のダイナミクスに関する二光子顕微鏡イメージング2020

    • Author(s)
      村田樹里, 大石光洋, 畝川美悠紀, 伊澤良兼, 冨田 裕, 菅野 巖, 中原 仁, 田中謙二, 正本和人:
    • Organizer
      第33回バイオエンジニアリング講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Spatiotemporal dynamic mapping of fluorescent red blood cell and plasma flow in the anesthetized rat cortex.2019

    • Author(s)
      Kusaka T, Kurihara Y, Sugashi T, Masamoto K
    • Organizer
      Brain & Brain PET 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Large-scale analysis of capillary responses using 3D imaging data sets of two-photon microscopy.2019

    • Author(s)
      Suzuki H, Sugashi T, Takuwa H, Kanno I, Masamoto K
    • Organizer
      Brain & Brain PET 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Quantitative volumetric analysis and time scope tracking of cerebral microvascular networks imaged with in vivo two-photon microscopy.2019

    • Author(s)
      Sugashi T, Niizawa T, Suzuki H, Masamoto K
    • Organizer
      ISOTT 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cerebral capillary dilation and constriction in the somatosensory cortex of awake mouse: in vivo two-photon microscopic studies.2019

    • Author(s)
      Suzuki H, Sugashi T, Takeda H, Takuwa H, Kanno I, Bin J, Sahara N, Higuchi M, Masamoto K
    • Organizer
      ISOTT 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cellular imaging of the neurovascular unit.2019

    • Author(s)
      Masamoto K
    • Organizer
      Brain & Brain PET 2019 Symposium Hot Techniques in Neuroimaging of Cerebrovascular Diseases
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Optical imaging and modulatino of cerebral microcirculation.2019

    • Author(s)
      Masamoto K
    • Organizer
      Brain & Brain PET 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Activity-induced changes in cerebral microcirculation.2019

    • Author(s)
      Masamoto K
    • Organizer
      Brain 2019 Satellite Workshop Advances in Multi-Scale Neuroimaging of Blood Flow and Metabolism in relation to Brain Activity
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Stability and plasticity of the neurovascular unit.2019

    • Author(s)
      Masamoto K
    • Organizer
      Cajal course on Brain Homeostasis and Neurovascular Coupling
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脳微小血管床における赤血球の滞在時間の定量化と血管径の計測2019

    • Author(s)
      櫻庭瑠華, 日下智哉,須貸拓馬,正本和人
    • Organizer
      第26回医用近赤外線分光法研究会・第23回酸素ダイナミクス研究会・合同研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] オプトジェネティクスによる脳血管平滑筋賦活時の脳血流量抑制モデル2019

    • Author(s)
      村田樹里、大石光洋、畠山菜緒、正本和人、畝川美悠紀、菅野 巖、田中謙二、冨田 裕、伊澤良兼、中原 仁
    • Organizer
      第62回日本脳循環代謝学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] ICG血管造影画像における輝度時間曲線の立ち上がりスロープと血流速の評価2019

    • Author(s)
      新澤ともや,須貸拓馬,寺尾 聡,永井 睦,石川眞実,正本和人
    • Organizer
      第62回日本脳循環代謝学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 光感受性のチャネルタンパク質を血管平滑筋細胞に発現させたマウス大脳における光刺激誘発性の脳血流応答計測2019

    • Author(s)
      村田樹里、大石光洋、畝川美悠紀、伊澤良兼、菅野 巖、冨田 裕、中原 仁、田中謙二、正本和人
    • Organizer
      日本機械学会 第32回バイオエンジニアリング講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 脳虚血後の神経血管ユニット:脳微小血管ネットワークの破綻とリモデリング2019

    • Author(s)
      正本和人
    • Organizer
      第62回日本脳循環代謝学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 大脳の神経血管連関と酸素輸送ダイナミクス2019

    • Author(s)
      正本和人
    • Organizer
      第24回日本基礎理学療法学会学術大会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 自発運動による脳血行動態への影響2019

    • Author(s)
      吉田智毅,濱谷ひかる,正本和人
    • Organizer
      日本機械学会 関東支部大会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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