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Cardiac protection by volatile anesthetic -Role of autophagy and mitochondrial regulation-

Research Project

Project/Area Number 18K08817
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55050:Anesthesiology-related
Research InstitutionThe University of Tokushima

Principal Investigator

SAKAI Yoko  徳島大学, 病院, 特任教授 (90711862)

Co-Investigator(Kenkyū-buntansha) 角田 奈美  徳島大学, 大学院医歯薬学研究部(医学域), 講師 (00622606)
田中 克哉  徳島大学, 大学院医歯薬学研究部(医学域), 教授 (30263841)
堤 保夫  広島大学, 医系科学研究科(医), 教授 (90523499)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsオートファジー / イソフルラン / 吸入麻酔薬 / 心筋保護 / 虚血再灌流障害 / エネルギー代謝 / ミトコンドリア / プレコンディショニング / 心筋保護作用 / ミトコンドリア機能
Outline of Final Research Achievements

Both an in vivo and in vitro model of ischemia-reperfusion injury was tested in anesthetic (isoflurane)-induced preconditioning mice. Mice were randomly assigned to receive anesthetic preconditioning with/without autophagy agonist/antagonist. Biochemical and mitochondrial swelling assays were also performed. Mice treated with volatile anesthetic-induced preconditioning had a significant reduction in infarct size as a percentage of the area at risk compared to controls, whereas mice treated with the autophagy inhibitor were not protected by anesthetic preconditioning. Furthermore, anesthetic preconditioning
prevented swelling which was reversed by the addition of autophagy inhibitor.
Volatile anesthetic, isoflurane, exhibits a protective effect in myocardial ischemia-reperfusion injury and that autophagy plays an important role in this preconditioning effects.

Academic Significance and Societal Importance of the Research Achievements

プレコンディショニング作用がある様々な薬剤が研究されているが、臨床応用に至っている薬剤は少ない。研究代表者の研究グループは、早くから吸入麻酔薬の心筋保護作用に注目し、その経路を明らかにしてきた。また、オートファジーの活性化により引き起こされる虚血再灌流障害に対する反応は近年注目を浴びている。そのため、これらの関連を明らかにすることは、極めて重要であると思われる。これらを介した詳細な機序について検討していくことで心筋虚血再灌流障害などによる細胞死に対する生体内の役割が明らかになると思われる。また、これによって虚血性心疾患患者の予後改善が行われ、社会的意義が非常に高いと思われる。

Report

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

    (4 results)

All 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results)

  • [Journal Article] The effect of 1% glucose loading on metabolism in the elderly patients during remifentanil-induced anesthesia: a randomized controlled trial.2020

    • Author(s)
      Fukuta K, Kasai A, Niki N, Ishikawa Y, Kawanishi R, Kakuta N, Sakai Y, Tsutsumi YM, Tanaka K.
    • Journal Title

      BMC Anesthesiol

      Volume: 20 Issue: 1 Pages: 143-143

    • DOI

      10.1186/s12871-020-01061-3

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Assessment of postoperative nutritional status and physical function between open surgical aortic valve replacement and transcatheter aortic valve implantation in elderly patients2020

    • Author(s)
      Mayu Sebe, Rie Tsutsumi, Takuro Oyama, Yousuke T. Horikawa, Yuta Uemura, Nami Kakuta, Yoko Sakai, Atsushi Morio, Hirotsugu Miyoshi, Takashi Kondo, Tomoaki Urabe, Yuko Noda, Satoshi Kamiya, Noboru Saeki, Masashi Kuroda, Katsuya Tanaka, Yasuo M. Tsutsumi, and Hiroshi Sakaue.
    • Journal Title

      The Journal of Medical Investigation

      Volume: 67 Issue: 1.2 Pages: 139-144

    • DOI

      10.2152/jmi.67.139

    • NAID

      130007839863

    • ISSN
      1343-1420, 1349-6867
    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Postoperative nausea and vomiting following lower limb surgery :a comparison between single-injection intraarticular anesthesia and continuous epidural anesthesia2019

    • Author(s)
      Yuta Uemura, Yoko Sakai, Yasuo M. Tsutsumi, Nami Kakuta, Chiaki Murakami, Shiho Satomi, Takuro Oyama, Naohiro Ohshita, Tomoya Takasago, Daisuke Hamada, Koichi Sairyo, and Katsuya Tanaka.
    • Journal Title

      The Journal of Medical Investigation

      Volume: 66 Issue: 3.4 Pages: 303-307

    • DOI

      10.2152/jmi.66.303

    • NAID

      130007733031

    • ISSN
      1343-1420, 1349-6867
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Noninvasive continuous blood pressure monitoring by the ClearSight system during robot‐assisted laparoscopic radical prostatectomy2018

    • Author(s)
      Yoko Sakai, Yasuo M. Tsutsumi, Takuro Oyama, Chiaki Murakami, Nami Kakuta, Katsuya Tanaka
    • Journal Title

      The Journal of Medical Investigation

      Volume: 65 Issue: 1.2 Pages: 69-73

    • DOI

      10.2152/jmi.65.69

    • NAID

      130006575619

    • ISSN
      1343-1420, 1349-6867
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2018-04-23   Modified: 2022-01-27  

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