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Intracranial aneurysm rupture prevention by modulating gut microbiota

Research Project

Project/Area Number 15K10974
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Emergency medicine
Research InstitutionHamamatsu University School of Medicine

Principal Investigator

Makino Hiroshi  浜松医科大学, 医学部附属病院, 講師 (10397408)

Research Collaborator HASHIMOTO Tomoki  Barrow Neurology Institute, Research Director
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords脳動脈瘤 / くも膜下出血 / 腸内細菌 / マウスモデル / 腸内細菌叢 / 脳動脈瘤破裂 / 動物モデル / 乳酸菌
Outline of Final Research Achievements

Intracranial aneurysm rupture causes poor outcome. For the rupture prevention, open surgery and intra-vascular coiling has been performed. However, more noninvasive methods such as pharmacological prevention has been required.
One of the main targets of the rupture prevention is inflammation. Recent study reports that gut microbiota changes red meat ingredients into inflammation inducing substance. The substance causes arterial inflammation. Also, lactic acid bacteria have anti-inflammatory action.
In this study, we could reduce intracranial aneurysm incidence by modulating gut microbiota using four antibiotics. We reported our results on international peer reviewed journal.

Academic Significance and Societal Importance of the Research Achievements

脳動脈瘤破裂は社会復帰率約3割という悲惨な結末を招く。近年、画像診断の進歩により、未破裂脳動脈瘤の発見が増加しているが、発見された脳動脈瘤の破裂を予防するためには、開頭クリッピングやコイル塞栓術が行われている。手術療法は合併症も多いため、より非侵襲的な薬物などによる代替療法の開発が待たれているが、薬物により、脳動脈瘤の発生を抑制し破裂を予防することは、未だに実現されていない。今回我々は、マウスに4種の抗生物質を投与し、腸内細菌叢を抑制する事で脳血管における炎症を抑制し、脳動脈瘤の発生頻度を低下させることができた。動物実験ではあるが今後、薬物療法の確立に向けた一歩となる事が期待される。

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (10 results)

All 2017 2016 2015 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] University of California San Francisco/Hashimoto laboratory/Prof. Hashimoto(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] UCSF, Hashimoto lab(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Unversity of California, San Francisco(米国)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Development of mouse brain imaging environment using clinical 3-Tesla magnetic resonance scanner2016

    • Author(s)
      夏目貴弘、外村和也、牧野洋、木村哲朗、梅村和夫
    • Journal Title

      Cerebral Blood Flow and Metabolism (Japanese journal of cerebral blood flow and metabolism)

      Volume: 27 Issue: 2 Pages: 235-241

    • DOI

      10.16977/cbfm.27.2_235

    • NAID

      130007040639

    • ISSN
      0915-9401, 2188-7519
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Successful serial imaging of the mouse cerebral arteries using conventional 3-T magnetic resonance imaging2015

    • Author(s)
      Hiroshi Makino, Kazuya Hokamura, Takahiro Natsume et al
    • Journal Title

      Journal of Cerebral Blood Flow & Metabolism

      Volume: 5 Issue: 9 Pages: 1-5

    • DOI

      10.1038/jcbfm.2015.78

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 動物行動解析iPad アプリケーションの開発2017

    • Author(s)
      牧野洋, 加藤孝澄, 木村哲朗, 外村和也, 鈴木智, 岩城孝行, 中島芳樹, 難波宏樹, 梅村和夫
    • Organizer
      第22回浜松医科学シンポジウム
    • Place of Presentation
      浜松市
    • Year and Date
      2017-03-10
    • Related Report
      2016 Research-status Report
  • [Presentation] マウス脳梗塞モデルによる運動量測定アプリケーションの評価2016

    • Author(s)
      外村和也、牧野洋、加藤孝澄、木村哲朗、夏目貴弘、鈴木智、難波宏樹、中島芳樹、梅村和夫
    • Organizer
      第59回日本脳循環代謝学会学術集会
    • Place of Presentation
      徳島市
    • Year and Date
      2016-11-11
    • Related Report
      2016 Research-status Report
  • [Presentation] Visualizing cerebral aneurysms in mice by a conventional three tesla MRI2015

    • Author(s)
      Kazuya Hokamura, Hiroshi Makino, Takahiro Natsume, Tetsuro Kimura, Yoshinobu Kamio, Yasuhiro Magata, Hiroki Namba, Takasumi Katoh, Shigehito Sato, Tomoki Hashimoto and Kazuo Umemura
    • Organizer
      BRAIN & BRAIN PET 2015
    • Place of Presentation
      Vancouver
    • Year and Date
      2015-06-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] マウス脳動脈瘤モデルにおいてくも膜下出血の発症はイソフルランの最小肺胞濃度を減少させる2015

    • Author(s)
      木村哲朗、牧野洋、加藤孝澄、佐藤重仁
    • Organizer
      第62回日本麻酔科学会学術集会
    • Place of Presentation
      神戸市
    • Year and Date
      2015-05-29
    • Related Report
      2015 Research-status Report
  • [Presentation] 臨床用3テスラMRIを用いたマウス脳動脈瘤可視化の試み2015

    • Author(s)
      外村和也, 梅村和夫, 牧野洋, 木村哲朗, 加藤孝澄, 神尾佳宣, 難波宏樹
    • Organizer
      第8回静岡県血栓と血管フォーラム
    • Place of Presentation
      浜松市
    • Year and Date
      2015-04-04
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2022-02-16  

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