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Histopathological study to elucidate the mechanism of epilepsy seizure induction

Research Project

Project/Area Number 18K08999
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

MIKUNI NOBUHIRO  札幌医科大学, 医学部, 教授 (60314217)

Co-Investigator(Kenkyū-buntansha) 杉田 真太朗  札幌医科大学, 医学部, 准教授 (50451670)
Project Period (FY) 2018-04-01 – 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 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsてんかん
Outline of Final Research Achievements

Six full-time specialists of the Japanese Epilepsy Society have a record of 40-50 operations per year, but after 2020, the operations were postponed one after another due to COVID 19 compliance, and it was difficult to carry out the research. Research continues even in such a situation, and we have published manuscripts such as, (1) the gene of the excised specimen is involved in the control of epileptic seizures in WHO grade II glioma, which is frequently associated with epilepsy, (2) higher brain dufunction would be improved by early epilepsy focal excision. and (3) elucidation of the abnormal network of epilepsy. Research on electroencephalogram measurement and excised brain tissue using a digital electroencephalograph for long-term video EEG monitoring, PET / SPECT, MEG, and neuronavigation system, which are necessary for preoperative and intraoperative examinations, has been continuing although the infection has not yet converged.

Academic Significance and Societal Importance of the Research Achievements

てんかんは、発作を引き起こす持続性素因を持つネットワーク病である。有病率は約1%で、小児期から高齢までのどの段階にでも発生し成長を傷害し、また自動車運転を含む社会的制約を受け、さらに認知症を加速することが知られている。本疾患の病態を解明し新たな治療に貢献する本研究は学術的意義はもちろん、社会的にも有意義である。この目的を達成するため、申請者自身が経験豊富な病理組織学的基礎研究手法と、臨床的手法つまり慢性硬膜下電極による焦点診断、てんかん波解析、ネットワークとしての解剖学的機能的異常回路診断を行いその総合結果から研究を進めている。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (21 results)

All 2021 2020

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (9 results) (of which Invited: 1 results) Book (3 results)

  • [Journal Article] Pitfalls of Commonly Used Ischemic and Dementia Models Due to Early Seizure by Carotid Ligation2021

    • Author(s)
      Hirano T, Mikami T, Yamada S, Nagahama H, Enatsu R, Ookawa S, Akiyama Y, Mikuni N.
    • Journal Title

      Neurologia medico-chirurgica

      Volume: 61 Issue: 5 Pages: 312-320

    • DOI

      10.2176/nmc.oa.2020-0365

    • NAID

      130008038512

    • ISSN
      0470-8105, 1349-8029
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Steady-State Cortico-cortical Evoked Potential.2021

    • Author(s)
      Arihara M, Enatsu R, Ochi S, Sasagawa A, Hirano T, Kuribara T, Yamada S, Kimura Y, Matsuhashi M, Mikuni N.
    • Journal Title

      J Clin Neurophysiol

      Volume: 未定 Issue: 4 Pages: 301-309

    • DOI

      10.1097/wnp.0000000000000887

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Current Status and Future Objectives of Surgical Therapies for Epilepsy in Japan2021

    • Author(s)
      Mikuni N, Usui N, Otsubo H, Kawai K, Kishima H, Maehara T, Mine S, Yamamoto T.
    • Journal Title

      Neurologia medico-chirurgica

      Volume: 61 Issue: 11 Pages: 619-628

    • DOI

      10.2176/nmc.st.2021-0230

    • NAID

      130008116464

    • ISSN
      0470-8105, 1349-8029
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cortical regions and networks of hyperkinetic seizures: Electrocorticography and diffusion tensor imaging study.2021

    • Author(s)
      Sasagawa A, Enatsu R, Kuribara T, Arihara M, Hirano T, Ochi S, Mikuni N.
    • Journal Title

      Epilepsy Behav.

      Volume: 未定 Pages: 108405-108405

    • DOI

      10.1016/j.yebeh.2021.108405

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Forgetting to take antiseizure medications is associated with focal to bilateral tonic-clonic seizures, as revealed by a cross-sectional study.2020

    • Author(s)
      Suzuki H, Mikuni N, Ohnishi H, Yokoyama R, Enatsu R, Ochi S.
    • Journal Title

      PLoS One

      Volume: 15 Issue: 10 Pages: 0240082-0240082

    • DOI

      10.1371/journal.pone.0240082

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Molecular Aberrations Associated with Seizure Control in Diffuse Astrocytic and Oligodendroglial Tumors2020

    • Author(s)
      Suzuki H, Mikuni N, Sugita S, Aoyama T, Yokoyama R, Suzuki Y, Enatsu R, Akiyama Y, Mikami T, Wanibuchi M, Hasegawa T.
    • Journal Title

      Neurologia medico-chirurgica

      Volume: 60 Issue: 3 Pages: 147-155

    • DOI

      10.2176/nmc.oa.2019-0218

    • NAID

      130007808837

    • ISSN
      0470-8105, 1349-8029
    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Negative Motor Networks: Electric Cortical Stimulation and Diffusion Tensor Imaging2020

    • Author(s)
      Yokoyama R, Enatsu R, Kanno A, Suzuki H, Suzuki Y, Sasagawa A, Hirano T, Arihara M, Kuribara T, Ochi S, Mikuni N
    • Journal Title

      Rev Neurol

      Volume: 176 Issue: 7-8 Pages: 592-600

    • DOI

      10.1016/j.neurol.2019.12.005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Immediate Effects of Vagus Nerve Stimulation in Intractable Epilepsy: An Intra-operative Electrocorticographic Analysis2020

    • Author(s)
      Yokoyama R, Akiyama Y, Enatsu R, Suzuki H, Suzuki Y, Kanno A, Ochi S, Mikuni N.
    • Journal Title

      Neurologia medico-chirurgica

      Volume: 60 Issue: 5 Pages: 244-251

    • DOI

      10.2176/nmc.oa.2019-0221

    • NAID

      130007843192

    • ISSN
      0470-8105, 1349-8029
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Anatomical and Functional Distribution of Functional MRI Language Mapping.2020

    • Author(s)
      Hirano T, Enatsu R, Sasagawa A, Arihara M, Kuribara T, Yokoyama R, Suzuki H, Ochi S, Mikuni N.
    • Journal Title

      J Clin Neurosci.

      Volume: 77 Pages: 116-122

    • DOI

      10.1016/j.jocn.2020.05.007

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 脳腫瘍とてんかん 病態による治療戦略2021

    • Author(s)
      三國 信啓
    • Organizer
      第39回脳腫瘍病理学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] てんかんの診断と治療2021

    • Author(s)
      三國信啓
    • Organizer
      第29回北海道神経画像研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] てんかんの病態と治療2020

    • Author(s)
      三國信啓
    • Organizer
      第61回日本組織細胞化学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 脳神経外科からみたてんかんと認知症2020

    • Author(s)
      三國信啓
    • Organizer
      第39回日本認知症学会シンポジウム8
    • Related Report
      2020 Research-status Report
  • [Presentation] てんかん 外科治療のトピックス2020

    • Author(s)
      三國信啓
    • Organizer
      日本神経学会・脳神経外科学会合同シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] 脳外科疾患のてんかん治療-新時代の治療戦略2020

    • Author(s)
      三國信啓
    • Organizer
      第79回日本脳神経外科学会アフタヌーンセミナー
    • Related Report
      2020 Research-status Report
  • [Presentation] 側頭下アプローチを安全に行うコツ2020

    • Author(s)
      三國信啓
    • Organizer
      第25回日本脳腫瘍の外科学会シンポジウム3
    • Related Report
      2020 Research-status Report
  • [Presentation] 側頭下アプローチを安全に行うコツ2020

    • Author(s)
      三國信啓
    • Organizer
      第29回脳神経外科手術と機器学会シンポジウム1
    • Related Report
      2020 Research-status Report
  • [Presentation] 画像を中心としたてんかんの診断と治療2020

    • Author(s)
      三國信啓
    • Organizer
      第43回日本脳神経CI学会 教育講演5
    • Related Report
      2020 Research-status Report
  • [Book] 標準脳神経外科学 第15版2021

    • Author(s)
      新井 一
    • Total Pages
      437
    • Publisher
      医学書院
    • ISBN
      4260043188
    • Related Report
      2020 Research-status Report
  • [Book] Annual Review 神経2020

    • Author(s)
      鈴木則宏、荒木信夫、宇川義一、桑原聡、塩川芳昭編.三國信啓著
    • Total Pages
      380
    • Publisher
      中外医学社
    • ISBN
      9784498328488
    • Related Report
      2020 Research-status Report
  • [Book] てんかん専門医ガイドブック 改訂第2版2020

    • Author(s)
      日本てんかん学会
    • Total Pages
      468
    • Publisher
      診断と治療社
    • ISBN
      4787824171
    • Related Report
      2020 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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