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Pathophysiology of oscillation in ischemic condition

Research Project

Project/Area Number 16K10732
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurosurgery
Research InstitutionSapporo Medical University

Principal Investigator

Mikami Takeshi  札幌医科大学, 医学部, 講師 (30372816)

Co-Investigator(Kenkyū-buntansha) 三國 信啓  札幌医科大学, 医学部, 教授 (60314217)
小松 克也  札幌医科大学, 医学部, 助教 (60749498)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsischemia / oscillation / electroencephalography / power spectrum / moyaoya disease / neuromodulation / EEG / perivascular space / 脳神経疾患
Outline of Final Research Achievements

To evaluate the neurofunction and effectiveness of revascularization, electrocorticography was evaluated in moyamoya disease. The average spectral power ratio of the beta band per total band in moyamoya disease before bypass was lower than that of control, and the significance disappeared after bypass surgery. The spectral power levels of the beta band and gamma band were increased in moyamoya disease after bypass surgery.
Using rat model, similar result could be obtained in ischemic condition. Then, an effective neuromodulation is developing with neuro-stimulation.

Academic Significance and Societal Importance of the Research Achievements

平成29年の「人口動態統計の概要」によると、日本人の脳血管障害による死亡数は全死因の中でも3番目という結果であった。脳血管障害にかかる医療費は、約1.8兆円であり介護費も2.5兆円といわれている。中でも脳梗塞は最も多く約60%を占める。脳梗塞は様々な機序で発症するが、慢性的に経過した状態を如何に向上させるかも重要である。脳梗塞慢性期の機能改善に関しては、再生医療からのアプローチが進んでおり、現在いつくかの臨床試験が実施されている。しかしながら、現在のところ効果は限定的であり、別の視点からの脳機能の改善を試みることが必要であり、電気生理学的なニューロモデュレーションに活路を見出そうと試みた。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2018 2017 2016

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results) Presentation (6 results)

  • [Journal Article] Influence of hemodynamics on enlarged perivascular spaces in atherosclerotic large vessel disease2018

    • Author(s)
      Mikami Takeshi、Tamada Tomoaki、Suzuki Hime、Ukai Ryo、Wanibuchi Masahiko、Mikuni Nobuhiro
    • Journal Title

      Neurological Research

      Volume: 40 Issue: 12 Pages: 1021-1027

    • DOI

      10.1080/01616412.2018.1509827

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Electrophysiological influence of temporal occlusion of the parent artery during aneurysm surgery2017

    • Author(s)
      Komatsu Katsuya、Mikami Takeshi、Yokoyama Rintaro、Suzuki Yuto、Komura Shoichi、Enatsu Rei、Noshiro Shouhei、Miyata Kei、Akiyama Yukinori、Mikuni Nobuhiro
    • Journal Title

      J Clin Neurosci

      Volume: 45 Pages: 199-204

    • DOI

      10.1016/j.jocn.2017.06.002

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Prevalence of and risk factors for enlarged perivascular spaces in adult patients with moyamoya disease2017

    • Author(s)
      Kuribara Tomoyosh, Mikami Takeshi, Komatsu Katsuya, Suzuki Hime, Ohnishi Hirofumi, Houkin Kiyohiro, Mikuni Nobuhiro
    • Journal Title

      BMC neurology

      Volume: 17 Issue: 1 Pages: 149-149

    • DOI

      10.1186/s12883-017-0935-x

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pathophysiological consideration of medullary streaks on FLAIR imaging in pediatric moyamoya disease2017

    • Author(s)
      Suzuki Hime, Mikami Takeshi, Kuribara Tomoyoshi, Yoshifuji Kazuhisa, Komatsu Katsuya, Akiyama Yukinori, Ohnishi Hirofumi, Houkin Kiyohiro, Mikuni Nobuhiro
    • Journal Title

      J Neurosurg Pediatr

      Volume: 19 Issue: 5 Pages: 560-566

    • DOI

      10.3171/2017.1.peds16541

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neuromodulatory role of revascularization surgery in moyamoya disease.2016

    • Author(s)
      Noshiro S, Mikami T, Komatsu K, Kanno A, Enatsu R, Yazawa S, Nagamine T, Matsuhashi M, Mikuni N.
    • Journal Title

      World Neurosurg.

      Volume: 16 Pages: 30216-9

    • DOI

      10.1016/j.wneu.2016.04.087

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 虚血が血管周囲腔拡大に及ぼす影響2018

    • Author(s)
      三上毅、玉田智晃、鈴木比女、鵜飼亮、鰐渕昌彦、三國信啓
    • Organizer
      第27回日本脳ドック学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] もやもや病に対する直接血行再建術による皮質脳波変化の解析2018

    • Author(s)
      能代将平、三上毅、三國信啓、大瀧雅文
    • Organizer
      第61回日本脳循環代謝学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 成人もやもや病における血管周囲腔のリスク因子の検討2017

    • Author(s)
      栗原伴佳、三上毅、鈴木比女、小松克也、鰐渕昌彦、三國信啓
    • Organizer
      Stroke 2017
    • Place of Presentation
      大阪国際会議場
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 成人もやもや病における血管周囲腔おリスク因子の検討2017

    • Author(s)
      栗原伴佳、三上毅、鈴木比女、小松克也、鰐渕昌彦、三國信啓
    • Organizer
      Stroke2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 小児もやもや病におけるFLAIR画像での拡大血管周囲腔の高信号域2017

    • Author(s)
      鈴木比女、三上毅、栗原伴佳、吉藤和久、三國信啓
    • Organizer
      第36回The Mt.Fuji Workshop on CVD
    • Related Report
      2017 Research-status Report
  • [Presentation] もやもや病の再灌流時における電気生理学的変化2016

    • Author(s)
      能代将平、三上毅、大瀧雅文、長峯孝、松橋眞生、三國信啓
    • Organizer
      第59回日本脳循環代謝学会学術集会
    • Place of Presentation
      徳島あわぎんホール
    • Year and Date
      2016-11-11
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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