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Suppressive effects of GOREI-SAN (Kampo) for brain edema and inflammatory response in acute phase after status epilepticus

Research Project

Project/Area Number 17K08356
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Natural medicines
Research InstitutionTokushima Bunri University

Principal Investigator

Kouichi itoh  徳島文理大学, 薬学部, 教授 (30291149)

Co-Investigator(Kenkyū-buntansha) 石原 康宏  広島大学, 統合生命科学研究科(総), 准教授 (80435073)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsてんかん / 五苓散 / 脳波 / 脳内炎症 / 血液脳関門 / 脳浮腫 / 漢方薬 / MRI / 重積発作 / サイトカイン / ミクログリア / FACS / 疾患モデル
Outline of Final Research Achievements

GOREI-SAN (GRS) has been used for water intoxication. Recently there have been a lot of clinical application studies of GRS
GRS was orally administered 3 times a day (100 mg/kg) after status epilepticus (SE), and in the early stage (2 to 3 days), it suppressed AQP4-mediated transient BBB permeability and vasogenic edema in the hippocampus. In addition, it was observed that the marker of cerebral inflammation Pentraxin3 was markedly increased. Microglia and infiltrating macrophages in the brain were activated, and many proinflammatory cytokines were also highly expressed. This was called SE-induced brain cytokine storm. GRS regulated this cytokine storm. However, long-term EEG measurements did not show a significant effect of suppressing the appearance of epileptiform discharges by GRS. Therefore, the administration of GRS alone limited the effect of suppressing seizures, while suppressing the inflammation-related reaction in the brain.

Academic Significance and Societal Importance of the Research Achievements

世界的な高齢社会を迎え、脳卒中、アルツハイマー病など脳器質性病変を原因とする2次性てんかん発症率が上昇し続けている。てんかん発作は、日常生活に大変な不安をもたらしQOL低下を招く。従って、てんかん発症予防は大変重要な課題であり漢方療法も有用である。てんかん発症における脳内水代謝異常と炎症に関わる方剤、五苓散を用いて検討した。てんかん発症初期段階における脳浮腫、脳内炎症を五苓散は顕著に抑制した。しかし、五苓散単独ではてんかん脳波に関しては抑えることはできなかったが、他の抗てんかん薬(特にレベチラセタム)と併用することで2次性てんかん発作の出現を抑制でき可能性を示した。

Report

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

    (13 results)

All 2020 2019 2018 2017

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (9 results) (of which Invited: 1 results)

  • [Journal Article] Suppressive effects of levetiracetam on neuroinflammation and phagocytic microglia: A comparative study of levetiracetam, valproate and carbamazepine2019

    • Author(s)
      Itoh Kouichi、Taniguchi Ruri、Matsuo Taira、Oguro Ami、Vogel Christoph F.A.、Yamazaki Takeshi、Ishihara Yasuhiro
    • Journal Title

      Neuroscience Letters

      Volume: 708 Pages: 134363-134363

    • DOI

      10.1016/j.neulet.2019.134363

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Neuroprotective activation of astrocytes by methylmercury exposure in the inferior colliculus2019

    • Author(s)
      Ishihara Yasuhiro、Itoh Kouichi、Oguro Ami、Chiba Yoichi、Ueno Masaki、Tsuji Mayumi、Vogel Christoph F. A.、Yamazaki Takeshi
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 13899-13899

    • DOI

      10.1038/s41598-019-50377-9

    • NAID

      120006799369

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Progression of vasogenic edema induced by activated microglia under permanent middle cerebral artery occlusion.2018

    • Author(s)
      Tanaka M, Ishihara Y, Mizuno S, Ishida A, Vogel CFA, Tsuji M, Yamazaki T, Itoh K.
    • Journal Title

      Biochem Biophys Res Commun.

      Volume: 496(2) Issue: 2 Pages: 582-587

    • DOI

      10.1016/j.bbrc.2018.01.094

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Potentiation of 17β-estradiol synthesis in the brain and elongation of seizure latency through dietary supplementation with docosahexaenoic acid.2017

    • Author(s)
      Ishihara Y, Itoh K, Tanaka M, Tsuji M, Kawamoto T, Kawato S, Vogel CFA, Yamazaki T
    • Journal Title

      Sci Rep.

      Volume: 7(1): Issue: 1 Pages: 6268-6268

    • DOI

      10.1038/s41598-017-06630-0

    • NAID

      120006782321

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] てんかん原性初期における遺伝子発現変動の網羅的解析2020

    • Author(s)
      小森理絵、河野智海、小澤千尋、松尾平、石原康宏、伊藤 康一
    • Organizer
      日本薬学会140年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 重積発作後てんかん原性期における脳内浸潤白血球の解析2019

    • Author(s)
      松尾平、中妻彩、小森理絵、伊藤康一
    • Organizer
      第58回日本薬学会・日本薬剤師会・日本病院薬剤師会中国四国支部学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] てんかん原性初期の脳内変化とてんかん発症に対する五苓散の効果2019

    • Author(s)
      小森理絵、大江優美、石原康宏、松尾平、伊藤康一
    • Organizer
      第58回日本薬学会・日本薬剤師会・日本病院薬剤師会中国四国支部学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 重積発作後の脳内サイトカインストームと抗てんかん薬2019

    • Author(s)
      伊藤康一、松尾 平、石原 康宏
    • Organizer
      第13回日本てんかん学会中国・四国地方会
    • Related Report
      2018 Research-status Report
  • [Presentation] てんかん原性形成における免疫細胞動態-サイトカインストームとの関連性-2018

    • Author(s)
      伊藤康一、石原 康宏
    • Organizer
      生体機能と創薬シンポジウム2018
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 重積発作後てんかん原性初期の海馬内脳内炎症関連遺伝子の解析2018

    • Author(s)
      河野智海、小澤千尋、松尾 平、小森理絵、伊藤康一
    • Organizer
      第57回日本薬学会・日本薬剤師会・日本病院薬剤師会中国四国支部学術大会
    • Related Report
      2018 Research-status Report
  • [Presentation] CAGE-seq法を用いた重積発作後てんかん原性初期の海馬内遺伝子変化2018

    • Author(s)
      小澤千尋、河野智海、松尾 平、小森理絵、伊藤康一
    • Organizer
      第57回日本薬学会・日本薬剤師会・日本病院薬剤師会中国四国支部学術大会
    • Related Report
      2018 Research-status Report
  • [Presentation] てんかん原性初期における脳内炎症関連サイトカインのプロファイル2018

    • Author(s)
      伊藤 康一、橋本律香、久保静香、松尾平、小森理絵、水野翔童、石原 康宏
    • Organizer
      日本薬学会第138 年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 症候性てんかん原性脳内における炎症関連分子発現プロファイリング2017

    • Author(s)
      伊藤 康一、橋本律香、久保静香、松尾平、小森理絵、水野翔童、石原 康宏
    • Organizer
      第70回日本薬理学会西南部会
    • Related Report
      2017 Research-status Report

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

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