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2010 Fiscal Year Self-evaluation Report

Dual role of oxidative stress and antioxidant-dilemma in the ischemic heart

Research Project

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Project/Area Number 20590847
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Circulatory organs internal medicine
Research InstitutionKansai Medical University

Principal Investigator

IWASAKA Toshiji  Kansai Medical University, 医学部, 教授 (00098120)

Project Period (FY) 2008 – 2011
Keywords臨床心血管病態学
Research Abstract

本研究の目的は高血圧、糖尿病、高脂血症、心筋症といった酸化ストレス亢進状態において施行される抗酸化療法の有用性と危険性を酸化ストレスの二面性の観点から検討することである。本研究では以下の点を実験的に明らかにする。(1)高血圧モデルにおいて純粋な抗酸化薬と二次的効果として抗酸化作用が認められているアンジオテンシンII受容体拮抗薬(ARB)が心不全発症および心筋梗塞発生時の梗塞サイズにおよぼす影響、(2)心筋症モデルにおいて酸化ストレスの下流にあって心筋細胞死のシグナルに関わっているp38 MAPキナーゼの阻害薬とARBが心不全の進展および心筋梗塞発生時の梗塞サイズにおよぼす影響、(3)高脂血症モデルにおいてスタチンが動脈硬化予防と心筋梗塞発生時の梗塞サイズにおよぼす影響、(4)糖尿病モデルにおいてミトコンドリアKATPチャネル抑制作用を有する経口糖尿病薬が心筋梗塞サイズにおよぼす影響に焦点を当てる。

  • Research Products

    (6 results)

All 2011 2010 2009 2008

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (3 results)

  • [Journal Article] Reversal of inducible nitric oxide synthase uncoupling unmasks tolerance to ischemia/reperfusion injury in the diabetic rat heart.2011

    • Author(s)
      Okazaki T, Otani H, Shimazu T, Yoshioka K, Fujita M, Katano T, Ito S, Iwasaka T.
    • Journal Title

      J Mol Cell Cardiol. 50

      Pages: 534-544

    • Peer Reviewed
  • [Journal Article] The role of nitric oxide in myocardial repair and remodeling.2009

    • Author(s)
      Otani H.
    • Journal Title

      Antioxid Redox Signal. 11

      Pages: 1913-1928

    • Peer Reviewed
  • [Journal Article] N-acetylcysteine abolishes the protective effect of losartan against left ventricular remodeling in cardiomyopathy hamster.2008

    • Author(s)
      Matsuhisa S, Otani H, Okazaki T, Yamashita K, Akita Y, Sato D, Moriguchi A, Iwasaka T.
    • Journal Title

      Antioxid Redox Signal. 10

      Pages: 1999-2008

    • Peer Reviewed
  • [Presentation] Dual role of inducible nitric oxide synthase in left ventricular injury and protection after myocardial infarction in mice.2010

    • Author(s)
      Shimazu T, Otani H, Fujita M, Yoshioka K, Okazaki T, Iwasaka T.
    • Organizer
      American Heart Association Scientific Sessions 2010.
    • Place of Presentation
      米国シカゴ
    • Year and Date
      2010-11-15
  • [Presentation] Inhibition of iNOS uncoupling by tetrahydrobiopterin confers cardioprotection through protein S-nitrosylation.2008

    • Author(s)
      Okazaki T, Otani H, Yamashita K, Jo H, Yoshioka K, Moriguchi A, Iwasaka T.
    • Organizer
      American Heart Association Scientific Sessions 2008.
    • Place of Presentation
      米国ニューオーリンズ
    • Year and Date
      2008-11-11
  • [Presentation] Inhibition of contractile activity during ischemic postconditioning enhances cardioprotection through RISK-dependent restoration of sarcolemmal dystrophin.2008

    • Author(s)
      Moriguchi A, Otani H, Yamashita K, Yoshioka K, Okazaki T, Iwasaka T.
    • Organizer
      American Heart Association Scientific Sessions 2008.
    • Place of Presentation
      米国ニューオーリンズ
    • Year and Date
      2008-11-09

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Published: 2012-02-13   Modified: 2016-04-21  

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