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Intestinal T cells and probiotics treatment in acute ischemic stroke

Research Project

Project/Area Number 18K05492
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionJuntendo University

Principal Investigator

Yamashiro Kazuo  順天堂大学, 医学部, 先任准教授 (00348921)

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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords脳梗塞 / T細胞 / 糖尿病 / 腸内細菌 / Tリンパ球 / プロバイオティクス
Outline of Final Research Achievements

We have previously reported that gut microbiota dysbiosis was associated with the outcome of acute ischemic stroke in diabetic mice. Recent studies have shown that the gut microbiota plays an important role in controlling the differentiation of immune cells in the intestinal tract.
In this study, we found that diabetic mice fed a high-fat diet had increased Th17 cells within lamina propria of the small intestine, and had severe neurological dysfunction after ischemic stroke compared to control mice fed a low-fat diet. These findings suggest that intestinal T lymphocytes are associated with the outcome of acute ischemic stroke.

Academic Significance and Societal Importance of the Research Achievements

脳卒中は運動麻痺などの重篤な後遺症を起こすことが少なくなく、要介護の主要な原因疾患である。急性期脳梗塞の組織障害を抑制し、後遺症を軽減するための治療法はいまだ不十分である。腸が脳へ影響を及ぼすメカニズムは未だ十分に解明されていないが、本研究により急性期虚血性脳卒中の病態には、腸管リンパ球が関与する可能性が示唆された。さらなる研究の推進により急性期脳梗塞における新たな脳保護治療法を確立することで、脳梗塞患者の予後改善と要介護者の減少、健康寿命の延伸につながることが期待される。

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

    (15 results)

All 2021 2020 2019 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (13 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Journal Article] Role of the Gut Microbiota in Stroke Pathogenesis and Potential Therapeutic Implications2021

    • Author(s)
      Yamashiro Kazuo、Kurita Naohide、Urabe Takao、Hattori Nobutaka
    • Journal Title

      Annals of Nutrition and Metabolism

      Volume: 77 Issue: Suppl. 2 Pages: 36-44

    • DOI

      10.1159/000516398

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metabolic endotoxemia promotes neuroinflammation after focal cerebral ischemia2020

    • Author(s)
      Kurita Naohide、Yamashiro Kazuo、Kuroki Takuma、Tanaka Ryota、Urabe Takao、Ueno Yuji、Miyamoto Nobukazu、Takanashi Masashi、Shimura Hideki、Inaba Toshiki、Yamashiro Yuichiro、Nomoto Koji、Matsumoto Satoshi、Takahashi Takuya、Tsuji Hirokazu、Asahara Takashi、Hattori Nobutaka
    • Journal Title

      Journal of Cerebral Blood Flow & Metabolism

      Volume: 印刷中 Issue: 12 Pages: 2505-2520

    • DOI

      10.1177/0271678x19899577

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] LPSによる神経炎症が認知機能と白質病変に及ぼす影響2021

    • Author(s)
      山城一雄、稲葉俊東、栗田尚英、上野祐司、宮元伸和、平健一郎、中島翔、木島千景、服部信孝、卜部貴夫
    • Organizer
      第11回日本脳血管・認知症学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 腸内細菌由来LPSによる神経炎症と認知機能及び白質病変との関連2021

    • Author(s)
      山城一雄、稲葉俊東、栗田尚英、上野祐司、宮元伸和、平健一郎、中島翔、木島千景、服部信孝、卜部貴夫
    • Organizer
      第40回日本認知症学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 腸内細菌叢異常は神経炎症を介して認知機能と白質病変に関与する2021

    • Author(s)
      稲葉俊東、山城一雄、栗田尚英、上野祐司、宮元伸和、平健一郎、中島翔、木島千景、服部信孝、卜部貴夫
    • Organizer
      第64回日本脳循環代謝学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 脳卒中の病態における腸内細菌の役割2021

    • Author(s)
      山城一雄、栗田尚英、服部信孝、卜部貴夫
    • Organizer
      第46回日本脳卒中学会学術集会
    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Invited
  • [Presentation] Metabolic endotoxemia promotes neuroinflammation after focal cerebral ischemia2020

    • Author(s)
      山城一雄
    • Organizer
      The joint European Stroke Organisation and World Stroke Organisation Conference (ESO-WSO 2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Stroke and Microbiota2019

    • Author(s)
      山城一雄、服部信孝
    • Organizer
      第60回日本神経学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Gut dysbiosis promotes LPS-induced neuroinflammation after cerebral ischemia in diabetic mice2019

    • Author(s)
      Naohide Kurita, Kazuo Yamashiro, Takuma Kuroki, Ryota Tanaka, Yuji Ueno, Takao Urabe, Nobutaka Hattori
    • Organizer
      第60回日本神経学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Gut dysbiosis promotes lipopolysaccharide-induced neuroinflammation after stroke.2019

    • Author(s)
      Naohide Kurita, Kazuo Yamashiro, Ryota Tanaka, Yuji Ueno, Nobukazu Miyamoto, Sho Nakajima Takao Urabe, Yuichiro Yamashiro, Nobutaka Hattori.
    • Organizer
      BRAIN and BRAIN PET 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modulation of gut microbiota improves outcomes after ischemic stroke by reducing lipopolysaccharide-induced inflammation in the ischemic brain of diabetic mice2019

    • Author(s)
      Kurita N, Yamashiro K, Kuroki K, Tanaka R, Ueno Y, Urabe T, Yamashiro Y, Hattori N.
    • Organizer
      International Stroke Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 腸内細菌と脳卒中2019

    • Author(s)
      山城一雄
    • Organizer
      第44回日本脳卒中学会学術集会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 腸内細菌叢の異常と脳虚血急性期におけるLPSを介した炎症2019

    • Author(s)
      栗田尚英、山城一雄、黒帰卓馬、田中亮太、上野祐司、宮元伸和、卜部貴夫、山城雄一郎、服部信孝
    • Organizer
      第44回日本脳卒中学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Modulation of gut microbiota improves outcomes after stroke by reducing lipopolysaccharide-induced inflammation in the ischemic brain in diabetic mice.2018

    • Author(s)
      Kurita N, Yamashiro K, Kuroki T, Tanaka R, Ueno Y, Urabe T, Yamashiro Y, Hattori N.
    • Organizer
      4th European Stroke Organization Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 糖尿病マウスの腸内細菌叢異常は脳梗塞巣において内毒素に起因する炎症を引き起こす2018

    • Author(s)
      栗田尚英、山城一雄、黒木卓馬、田中亮太、上野祐司、卜部貴夫、野本康二、松本敏、高橋琢也、辻浩和、朝原崇、山城雄一郎、服部信孝
    • Organizer
      第59回日本神経学会学術大会
    • Related Report
      2018 Research-status Report

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

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