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Therapeutic intervention of intracerebral connectivity associated with epilepsy and memory

Research Project

Project/Area Number 17H04305
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Neurosurgery
Research InstitutionJichi Medical University

Principal Investigator

Kawai Kensuke  自治医科大学, 医学部, 教授 (70260924)

Co-Investigator(Kenkyū-buntansha) 宇佐美 憲一  国立研究開発法人国立成育医療研究センター, 臓器・運動器病態外科部, 医師 (30784847)
手塚 正幸  自治医科大学, 医学部, 助教 (40721311)
中嶋 剛  自治医科大学, 医学部, 講師 (60625995)
佐藤 信  自治医科大学, 医学部, 臨床助教 (80742345)
高橋 宏知  東京大学, 先端科学技術研究センター, 准教授 (90361518)
大谷 啓介  自治医科大学, 医学部, 助教 (90790676)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2019: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Keywordsてんかん / 記憶 / 神経ネットワーク / 海馬 / 迷走神経刺激 / 光トポグラフィー / 機能的MRI
Outline of Final Research Achievements

The present study investigated the effect of surgical operation and electrical stimulation on the cerebral functional network associated with epilepsy and memory. We used rats, pigs and human epilepsy surgery as the study paradigm. We found that the modulation effect of vagus nerve stimulation was layer-specific in the rat auditory cortex. We established the experimental model of multiple-point multimodal recording system in pigs which have well-developed cerebral gyri and sulci. We found that the decline and recovery of memory function after surgical manipulation of the medial temporal lobe was not limited in the manipulated area but extensively distributed in the brain. These findings suggested that network approach is more effective than focal approach for modulation of epilepsy and memory.

Academic Significance and Societal Importance of the Research Achievements

てんかんに対する新しい手術や電気刺激による介入は、てんかん焦点の単純な切除や抑制ではなく、生理的・病的な機能ネットワークの修飾として作用している可能性が示された。「新しい手術手技や電気刺激は、てんかんや記憶に関するネットワーク全体を変調させることによってその効果を発現している」との仮説に基づいて、その機構を理解し、治療効率を高めることは、革新的治療の開発につながる可能性があり、そのインパクトには計り知れないものがある。特に、本研究のような広帯域の機能的ネットワークに注目した研究は世界でも最先端のもので本邦ではいまだ稀少でその意義は大きい。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (27 results)

All 2020 2019 2018 2017

All Journal Article (14 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 12 results,  Open Access: 3 results) Presentation (13 results) (of which Int'l Joint Research: 6 results,  Invited: 9 results)

  • [Journal Article] 総説 大脳半球切除術と離断術の歴史と進歩2019

    • Author(s)
      川合 謙介
    • Journal Title

      Neurological Surgery 脳神経外科

      Volume: 47 Issue: 10 Pages: 1021-1036

    • DOI

      10.11477/mf.1436204068

    • ISSN
      0301-2603, 1882-1251
    • Year and Date
      2019-10-10
    • Related Report
      2019 Annual Research Report
  • [Journal Article] Prefrontal activity predicts individual differences in optimal attentional strategy for preventing motor performance decline: a functional near-infrared spectroscopy study2019

    • Author(s)
      Sakurada Takeshi、Goto Aya、Tetsuka Masayuki、Nakajima Takeshi、Morita Mitsuya、Yamamoto Shin-ichiroh、Hirai Masahiro、Kawai Kensuke
    • Journal Title

      Neurophotonics

      Volume: 6 Issue: 02 Pages: 1-1

    • DOI

      10.1117/1.nph.6.2.025012

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Autoencoding of long-term scalp electroencephalogram to detect epileptic seizure for diagnosis support system2019

    • Author(s)
      Emami Ali、Kunii Naoto、Matsuo Takeshi、Shinozaki Takashi、Kawai Kensuke、Takahashi Hirokazu
    • Journal Title

      Computers in Biology and Medicine

      Volume: 110 Pages: 227-233

    • DOI

      10.1016/j.compbiomed.2019.05.025

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hippocampal GAD67 Transduction Using rAAV8 Regulates Epileptogenesis in EL Mice2019

    • Author(s)
      Shimazaki Kuniko、Kobari Takashi、Oguro Keiji、Yokota Hidenori、Kasahara Yuko、Murashima Yoshiya、Watanabe Eiju、Kawai Kensuke、Okada Takashi
    • Journal Title

      Molecular Therapy - Methods & Clinical Development

      Volume: 13 Pages: 180-186

    • DOI

      10.1016/j.omtm.2018.12.012

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Seizuredetection by convolutional neural network-based analysis of scalp electroencephalographyplot images2019

    • Author(s)
      Ali Emami, Naoto Kunii, Takeshi Matsuo, Takashi Shinozaki, Kensuke Kawai, and Hirokazu Takahashi
    • Journal Title

      NeuroImage: Clinical

      Volume: 22 Pages: 10-10

    • DOI

      10.1016/j.nicl.2019.101684

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 連載 機能的脳神経外科最新の動向 (3)難治性てんかんに対する発作感知型デバイスによる新たな治療選択肢-AspireSR & RNS System2018

    • Author(s)
      山本 貴道、稲次 基希、前原 健寿、川合 謙介、Werner K. Doyle
    • Journal Title

      Neurological Surgery 脳神経外科

      Volume: 46 Issue: 3 Pages: 247-262

    • DOI

      10.11477/mf.1436203711

    • ISSN
      0301-2603, 1882-1251
    • Year and Date
      2018-03-10
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Deviance detection is the dominant component of auditory contextual processing in the lateral superior temporal gyrus: A human ECoG study2018

    • Author(s)
      Ishishita Yohei、Kunii Naoto、Shimada Seijiro、Ibayashi Kenji、Tada Mariko、Kirihara Kenji、Kawai Kensuke、Uka Takanori、Kasai Kiyoto、Saito Nobuhito
    • Journal Title

      Human Brain Mapping

      Volume: 40 Issue: 4 Pages: 1184-1194

    • DOI

      10.1002/hbm.24438

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Survivin overexpression via adeno-associated virus vector Rh10 ameliorates ischemic damage after middle cerebral artery occlusion in rats2018

    • Author(s)
      Sehara Yoshihide、Inaba Toshiki、Urabe Takao、Kurosaki Fumio、Urabe Masashi、Kaneko Naoki、Shimazaki Kuniko、Kawai Kensuke、Mizukami Hiroaki
    • Journal Title

      European Journal of Neuroscience

      Volume: 48 Issue: 12 Pages: 3466-3476

    • DOI

      10.1111/ejn.14169

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Efficient transduction of adeno-associated virus vectors into gerbil hippocampus with an appropriate combination of viral capsids and promoters2018

    • Author(s)
      Sehara Yoshihide、Shimazaki Kuniko、Kurosaki Fumio、Kaneko Naoki、Uchibori Ryosuke、Urabe Masashi、Kawai Kensuke、Mizukami Hiroaki
    • Journal Title

      Neuroscience Letters

      Volume: 682 Pages: 27-31

    • DOI

      10.1016/j.neulet.2018.06.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Decoding Speech With Integrated Hybrid Signals Recorded From the Human Ventral Motor Cortex2018

    • Author(s)
      Kenji Ibayashi, Naoto Kunii, Takeshi Matsuo, Yohei Ishishita, Seijiro Shimada, Kensuke Kawai, Nobuhito Saito
    • Journal Title

      Frontiers in Neuroscience

      Volume: 印刷中 Pages: 221-221

    • DOI

      10.3389/fnins.2018.00221

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Disconnection Surgery for Intractable Epilepsy with a Structural Abnormality in the Medial Posterior Cortex2018

    • Author(s)
      Matsuo Takeshi、Kawai Kensuke、Ibayashi Kenji、Shirouzu Ichiro、Sato Miki
    • Journal Title

      World Neurosurgery

      Volume: 116 Pages: e577-e587

    • DOI

      10.1016/j.wneu.2018.05.044

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Outcome of vagus nerve stimulation for drug-resistant epilepsy: the first three years of a prospective Japanese registry2017

    • Author(s)
      Kawai K, Tanaka T, Baba H, Bunker M, Ikeda A, Inoue Y, Kameyama S, Kaneko S, Kato A, Nozawa T, Maruoka E, Osawa M, Otsuki T, Tsuji S, Watanabe E, Yamamoto T.
    • Journal Title

      Epileptic Disorders

      Volume: 19 Pages: 327-338

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Secure Approach to the Inferior Horn Using the Deep Medullary Vein as an Anatomic Guide2017

    • Author(s)
      Ibayashi Kenji、Kunii Naoto、Kawai Kensuke、Saito Nobuhito
    • Journal Title

      World Neurosurgery

      Volume: 108 Pages: 325-327

    • DOI

      10.1016/j.wneu.2017.08.186

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impact of volume-conducted potential in interpretation of cortico-cortical evoked potential: Detailed analysis of high-resolution electrocorticography using two mathematical approaches2017

    • Author(s)
      Shimada S, Kunii N, Kawai K, Matsuo T, Ishishita Y, Ibayashi K, Saito N
    • Journal Title

      Clinical Neurophysiology

      Volume: 128 Pages: 549-557

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] VNS for DRE in Japan2020

    • Author(s)
      川合謙介
    • Organizer
      日本てんかん外科学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] てんかん外科治療の適切なタイミング(教育講演)2019

    • Author(s)
      川合謙介
    • Organizer
      第61回日本小児神経学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 植込型電気刺激装置によるてんかん治療の現状と今後の見込み2019

    • Author(s)
      川合謙介
    • Organizer
      第42回日本てんかん外科学会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] てんかんに対する体内植込型電気刺激療法2018

    • Author(s)
      川合謙介
    • Organizer
      第59回日本神経学会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 結節性硬化症に伴うてんかんの外科治療2018

    • Author(s)
      川合謙介
    • Organizer
      第60回日本小児神経学会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 小児てんかんに対する外科治療アップデート2018

    • Author(s)
      川合謙介
    • Organizer
      第60回日本小児神経学会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Memory issues in epilepsy surgery for temporal lobe epilepsy2018

    • Author(s)
      Kensuke Kawai
    • Organizer
      19th International Symposium on Severe Infantile Epilepsies
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脳循環代謝と迷走神経刺激療法2018

    • Author(s)
      川合謙介
    • Organizer
      第61回日本脳循環代謝学会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Vagus nerve stimulation for drug resistant epilepsy2018

    • Author(s)
      Kensuke Kawai
    • Organizer
      12th Asian Epilepsy Surgery Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Current topics in medical and surgical management of epilepsy2018

    • Author(s)
      Kensuke Kawai
    • Organizer
      The 2nd Meeting of China-Japan Neurosurgery Alliance
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The new approaches to combat memory decline from chronic epilepsy2017

    • Author(s)
      Kawai K
    • Organizer
      22nd Korean Epilepsy Congress
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] New methodologies for minimally iInvasive surgery2017

    • Author(s)
      Kawai K
    • Organizer
      22nd Korean Epilepsy Congress
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Indication and Optimal Timing for Epilepsy Surgery - From a Standpoint of Epilepsy Surgeon -2017

    • Author(s)
      Kawai K
    • Organizer
      The 76th Annual Meeting of the Japan Neurosurgical Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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