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Molecular biological mechanism of cognitive impairment due to cerebral hyperperfusion after reconstructive surgery

Research Project

Project/Area Number 19K09534
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionIwate Medical University

Principal Investigator

Chida Kohei  岩手医科大学, 医学部, 助教 (30611016)

Co-Investigator(Kenkyū-buntansha) 吉田 研二  岩手医科大学, 医学部, 特任准教授 (10316367)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords脳血行再建術後過灌流 / 認知機能障害 / 脳動脈血行再建術 / 術後過灌流 / 過灌流
Outline of Research at the Start

慢性脳虚血状態のラットに対し過灌流を導入し、大脳実質および血液脳関門に与える影響を分子生物学的に評価し、認知機能障害との関係を明らかにする。さらに慢性脳虚血や脳梗塞による障害と比較し、過灌流が認知機能障害をきたす分子生物学的メカニズムを解明する。

Outline of Final Research Achievements

An optimal rat model representing cerebral hyperperfusion after chronic cerebral ischemia was developed by modifying previous methods. With this ingenious method, severity of chronic cerebral ischemia can be finely controlled, and the intentional arterial stenosis for inducing cerebral hyperperfusion can be easily recovered. We should assess cognitive impairment after cerebral hyperperfusion with this method, analyze the damage of the blood brain barrier and the cerebral parenchyma and then elucidate the mechanism of the cognitive impairment.

Academic Significance and Societal Importance of the Research Achievements

本研究では、既存の手法に改良を加えることで、最適な慢性脳虚血後の過灌流モデルを作成することができた。さらにこのモデルを用いることで、慢性脳虚血後の過灌流により認知機能障害が生じるメカニズムを解明することができる。このメカニズムが解明されることで、本研究が脳血行再建術後過灌流に対する新たな治療法の開発に貢献すると考える。

Report

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

    (9 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (6 results) (of which Invited: 1 results)

  • [Journal Article] Optimal timing for measuring cerebral blood flow after acetazolamide administration to detect preexisting cerebral hemodynamics and metabolism in patients with bilateral major cerebral artery steno-occlusive diseases: 15 O positron emission tomography studies2021

    • Author(s)
      Kobayashi Masakazu, Igarashi Suguru, Takahashi Tatsuhiko, Fujiwara Shunrou, Chida Kohei, Terasaki Kazunori, Kubo Yoshitaka, Ogasawara Kuniaki
    • Journal Title

      American Journal of Nuclear Medicine and Molecular Imaging

      Volume: 15 Pages: 507-518

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Improvement in gait function after carotid endarterectomy is associated with postoperative recovery in perfusion and neurotransmitter receptor function in the motor-related cerebral cortex: a 123I-iomazenil SPECT study.2020

    • Author(s)
      Sato S., Fujiwara S., Miyoshi K., Chida K., Kobayashi M., Kubo Y., Yoshida K., Terasaki K., Ogasawara K.
    • Journal Title

      Nuclear Medicine Communications.

      Volume: 41(11) Issue: 11 Pages: 1161-1168

    • DOI

      10.1097/mnm.0000000000001275

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of the Distal End of Carotid Plaque Using 3-Dimensional Fast Spin Echo T1-Weighted Magnetic Resonance Plaque Imaging.2020

    • Author(s)
      Chida K, Shimada Y, Fujimoto K, Yoshida J, Kojima D, Fujiwara S, Kobayashi M, Yoshida K, Sasaki M, Ogasawara K.
    • Journal Title

      J Stroke Cerebrovasc Dis

      Volume: in press Issue: 4 Pages: 104580-104580

    • DOI

      10.1016/j.jstrokecerebrovasdis.2020.104680

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 成人虚血発症もやもや病における直接血行再建術後認知機能変化のメカニズム2021

    • Author(s)
      千田光平、柳原晋、島田泰良、小林正和、吉田研二、久保慶高、寺崎一典、小笠原邦昭
    • Organizer
      第39回 The Mt. Fuji Workshop on CVD
    • Related Report
      2021 Annual Research Report
  • [Presentation] 段階的塞栓術が有用であった出血発症multi-hole pial AVFの1例2021

    • Author(s)
      千田光平、千葉貴之、攝田典吾、赤松洋祐、木村尚人、久保慶高、小笠原邦昭
    • Organizer
      第43回日本脳神経血管内治療学会東北地方会
    • Related Report
      2020 Research-status Report
  • [Presentation] MR Plaque Imagingによる頚動脈内膜剥離術前のプラーク遠位端の同定2020

    • Author(s)
      千田光平、島田泰良、藤本健太郎、吉田純、小島大吾、藤原俊朗、小林正和、吉田研二、佐々木真理、小笠原邦昭
    • Organizer
      第45回日本脳卒中学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 腎機能障害患者に対しエコーガイド下 頚動脈ステント留置術が有用であった2例2020

    • Author(s)
      千田光平、千葉貴之、攝田典吾、大井清貴、津田圭介、土井尻遼介、木村尚人、小林正和、板橋亮、小笠原邦昭
    • Organizer
      第42回日本脳神経血管内治療学会東北地方会
    • Related Report
      2020 Research-status Report
  • [Presentation] MR Plaque Imagingによる頚動脈内膜剥離術前のプラーク遠位端の同定2019

    • Author(s)
      千田光平、島田泰良、藤本健太郎、吉田純、小島大吾、藤原俊朗、小林正和、吉田研二、佐々木真理、小笠原邦昭
    • Organizer
      第6回日本心血管脳卒中学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] エキスパートから学ぶSPECT検査活用法-脳血管障害2019

    • Author(s)
      千田光平
    • Organizer
      第35回ブレイン・ファンクション・イメージング・カンファレンス
    • Related Report
      2019 Research-status Report
    • Invited

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

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