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Role of ATP-sensitive K^+ channels in electrical remodeling associated with atrial fibrillation

Research Project

Project/Area Number 19590241
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General pharmacology
Research InstitutionChiba University

Principal Investigator

OGURA Takehiko  Chiba University, 大学院・医学研究院, 講師 (00292673)

Co-Investigator(Kenkyū-buntansha) NAKAYA Haruaki  千葉大学, 大学院・医学研究院, 教授 (60113594)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords循環 / 心房細動 / K_<ATP>チャネル / 電気的リモデリング / K_ATPチャネル
Research Abstract

心房細動に伴う電気的リモデリングの成立へのATP感受性K^+(KATP)チャネルの関与を検討するために、Kir6.2ノックアウト(KO)マウス摘出灌流心房筋標本を用い実験を行った。野生型およびKir6.2KOマウスの摘出灌流心の左心房から微小電極法で活動電位を記録し、5時間の高頻度刺激負荷時の活動電位の変化を観察した。野生型の心房では高頻度刺激によって緩やかに活動電位持続時間が延長した。Kir6.2KOの心房では高頻度刺激開始後早期より著明に延長し、その後対照値レベルに復した。心房筋細胞のKATPチャネルの活性化は高頻度に興奮した心房筋細胞活動電位波形の変化に影響を与える。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (38 results)

All 2009 2008 2007

All Journal Article (25 results) (of which Peer Reviewed: 12 results) Presentation (10 results) Book (3 results)

  • [Journal Article] 新規抗心房細動薬2009

    • Author(s)
      中谷晴昭
    • Journal Title

      治療学 43

      Pages: 82-84

    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Journal Article] 6-[4-(1-Cyclohexyl-1Htetrazol-5-yl)butoxy]-3,4-dihydro-2-(1H)quinolinone(cilostazol), a phosphdiesterase type 3 inhibitoe reduces infarct size via activation of mitochondrial Ca^<2+>-activated K^+ channels in rabbit hearts2008

    • Author(s)
      Fukazawa M., Nishida H., Sato T, Miyazaki M., Nakaya H
    • Journal Title

      J Pharmacol Exp Ther. 326

      Pages: 100-104

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Acute effects of oestrogen on the guinea pig and human I_<Kr> channels and drug-induced prolongation of cardiac repolarization2008

    • Author(s)
      Kurokawa J., Tamagawa M., Harada N., Honda S., Bai C-X., Nakaya H., Furukawa T.
    • Journal Title

      J Physiol 586

      Pages: 2961-2973

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Role of sarcolemmal ATP-sensitive K^+ channels in the regulation of sinoatrial node automaticity : an evaluation using Kir6.2-deficient mice2008

    • Author(s)
      Fukuzaki K., Sato T., Miki T., Seino S., Nakaya H.
    • Journal Title

      J Physiol 586

      Pages: 2767-2778

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Infarct size limitation by adrenomedullin : protein kinase a but not PI3-kinase is linked to mitochondrial K_<Ca> channels2008

    • Author(s)
      Nishida H., Sato T., Miyazaki M., Nakaya H.
    • Journal Title

      Cardiovasc. Res. 77

      Pages: 398-405

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 心房細動のダウンストリーム治療薬 ; その作用メカニズムを中心に2008

    • Author(s)
      中谷晴昭
    • Journal Title

      分子心血管病MOLECULAR CARDIOVASCULAR MEDICINE 9

      Pages: 19-25

    • Related Report
      2008 Final Research Report
  • [Journal Article] 治療薬抗不整脈薬(1)抗不整脈薬の電気生理学的基盤と心室性不整脈の治療2008

    • Author(s)
      中谷晴昭
    • Journal Title

      日薬理誌 131(6)

      Pages: 446-451

    • Related Report
      2008 Final Research Report
  • [Journal Article] 不整脈・トピックスベプリジルのミトコンドリアK_<ATP>チャネル活性化作用2008

    • Author(s)
      佐藤俊明, 中谷晴昭
    • Journal Title

      Medical Practice M.P. 25(6)

      Pages: 1017-1018

    • Related Report
      2008 Final Research Report
  • [Journal Article] Acute effects oestogen on the guinea pig and human I_<Kr> channels and drug-induced prolongation of cardiac repolarization.2008

    • Author(s)
      Kurosawa J.
    • Journal Title

      J. Physiol 586

      Pages: 2961-2973

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 6-[4-(1-Cyclohexyl-1H-tetrazol-5-yl)butoxy]-3,4-dihydro-2-(1H)quinolinone (cilostazol), a phosphdiesterase type 3 inhibitoe reduce infarct size via activation of mitochondrial Ca^<2+>-activated K^+ channels in rabbit hearts.2008

    • Author(s)
      Fukuzawa M.
    • Journal Title

      J. Pharmacol. Exp. Ther., 326

      Pages: 100-104

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of sarcolemmal ATP-sensitive K^+ channels in the regulation of sinoatrial node automaticity:an evaluation using Kir6.2-deficient mice.2008

    • Author(s)
      Fukuzaki K.
    • Journal Title

      J. Physiol 586

      Pages: 2767-2778

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ベプリジルのミトコンドリアK_<ATP>チャネル活性化作用2008

    • Author(s)
      佐藤俊明
    • Journal Title

      Medical practice M. P. 25

      Pages: 1017-1018

    • Related Report
      2008 Annual Research Report
  • [Journal Article] 治療薬 抗不整脈薬(1)抗不整脈薬の電気生理学的基盤と心室性不整脈の治療2008

    • Author(s)
      中谷晴昭
    • Journal Title

      日薬理誌 131

      Pages: 446-451

    • Related Report
      2008 Annual Research Report
  • [Journal Article] 心房細動のダウンストリーム治療薬;その作用とメカニズムを中心に2008

    • Author(s)
      中谷晴昭
    • Journal Title

      分子心血管病 9

      Pages: 19-25

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Infarct size limitation by adrenomedullin: protein kinase A but not PI3-kinase is linked to mitochondrial K_<Ca> channels2008

    • Author(s)
      Nishida H.
    • Journal Title

      Cardiovasc. Res 77

      Pages: 398-405

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Takayasu arteritis evaluated by multi-slice computed tomography in an old man2008

    • Author(s)
      Fujita T.
    • Journal Title

      Int. J. Cardiol 125

      Pages: 286-287

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conformational switch of angiotensin II type 1 receptor underlying mechanical stress-induced activation2008

    • Author(s)
      Yasuda N.
    • Journal Title

      EMBO Rep 9

      Pages: 179-186

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of azimilide on the muscarinic acetylcholine receptoroperated K^+ current and experimental atrial fibrillation in guinea-pig hearts2007

    • Author(s)
      Nishida A., Reien Y., Ogura T., Uemura H., Tamagawa M., Yabana H., Nakaya H.
    • Journal Title

      J. Pharmacol. Sci. 105

      Pages: 229-239

    • NAID

      10024316559

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 心房細動薬物治療の標的分子(特集心房細動治療の最新知見-J-RHYTHMの結果を踏まえて-)2007

    • Author(s)
      中谷晴昭
    • Journal Title

      PM基礎・治療PROGRESS IN MEDICINE 27

      Pages: 43-47

    • Related Report
      2008 Final Research Report
  • [Journal Article] 抗心房細動薬の展望-新しい標的を求めて-2007

    • Author(s)
      中谷晴昭
    • Journal Title

      Heart View. 11

      Pages: 64-70

    • Related Report
      2008 Final Research Report
  • [Journal Article] Effects of azimilide on the muscarinic acetylcholine receptor-operated K^+ current and experimental atrial fibrillation in guinea-pig hearts2007

    • Author(s)
      Nishida A.
    • Journal Title

      J. Pharmacol. Sci 105

      Pages: 229-239

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 抗心房細動薬の展望-新しい標的を求めて-2007

    • Author(s)
      中谷 晴昭
    • Journal Title

      Heart View 11

      Pages: 64-70

    • Related Report
      2007 Annual Research Report
  • [Journal Article] ATP感受性K^+チャネル2007

    • Author(s)
      中谷 晴昭
    • Journal Title

      日薬理誌 130

      Pages: 80-83

    • NAID

      10019813403

    • Related Report
      2007 Annual Research Report
  • [Journal Article] 抗血小板薬シロスタゾールの電気生理学的作用とその意義2007

    • Author(s)
      中谷 晴昭
    • Journal Title

      臨床と研究 84

      Pages: 113-118

    • Related Report
      2007 Annual Research Report
  • [Journal Article] 心房細動薬物治療の標的分子2007

    • Author(s)
      中谷 晴昭
    • Journal Title

      PM基礎・治療 27

      Pages: 43-47

    • Related Report
      2007 Annual Research Report
  • [Presentation] ミトコンドリアATP感受性K^+チャネルの活性化を介したグレリンの心筋保護作用2009

    • Author(s)
      稲村直樹
    • Organizer
      第82回日本薬理学会年会
    • Place of Presentation
      横浜
    • Year and Date
      2009-03-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] 癌細胞におけるCIC-3チャネルの役割2009

    • Author(s)
      小倉武彦, 永井敏雄, 小室一成, 中谷晴昭
    • Organizer
      第82回日本薬理学会年会
    • Place of Presentation
      横浜
    • Year and Date
      2009-03-16
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 日本の大規模臨床試験から学んだ心房細動の理想的薬物療法とは2009

    • Author(s)
      中谷晴昭
    • Organizer
      第82回日本薬理学会年会
    • Place of Presentation
      横浜
    • Year and Date
      2009-03-16
    • Related Report
      2008 Annual Research Report
  • [Presentation] 日本の大規模臨床試験から学んだ心房細動の理想的薬物療法とは2009

    • Author(s)
      中谷晴昭
    • Organizer
      第82回日本薬理学会年会シンポジウム
    • Place of Presentation
      横浜
    • Related Report
      2008 Final Research Report
  • [Presentation] オキシトシンのミトコンドリアATP感受性カリウムチャネルを介する心筋保護作用2008

    • Author(s)
      西田洋文
    • Organizer
      第18回日本循環薬理学会
    • Place of Presentation
      千葉
    • Year and Date
      2008-11-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] 高頻度刺激負荷後の心房筋活動電位変化とATP感受性K^+チャネルの役割2008

    • Author(s)
      新倉まりこ, 西村名美, 小倉武彦, 中里祐二, 霊園良恵, 中谷晴昭
    • Organizer
      第119回日本薬理学会関東部会
    • Place of Presentation
      東京
    • Year and Date
      2008-10-04
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] マウス洞房結節細胞におけるATP感受性K^+チャネルの電気生理学的役割の解析2007

    • Author(s)
      福崎紘一, 佐藤俊明, 三木隆司, 清野 進, 中谷晴昭
    • Organizer
      第17回日本循環薬理学会
    • Place of Presentation
      大阪
    • Year and Date
      2007-11-30
    • Related Report
      2008 Final Research Report
  • [Presentation] マウス洞房結節細胞におけるATP感受性K+チヤ不ルの電気理学的2007

    • Author(s)
      福崎 紘一
    • Organizer
      第24回日本心電学会学術集会
    • Place of Presentation
      名古屋
    • Year and Date
      2007-10-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] マウス洞房結節細胞におけるATP感受性K^+チャネルの電気生理学的役割の解析2007

    • Author(s)
      福崎紘一, 佐藤俊明, 中谷晴昭
    • Organizer
      第24回日本心電学会学術集会
    • Place of Presentation
      名古屋
    • Related Report
      2008 Final Research Report
  • [Presentation] HCN4チャネル電流に対する各種抗不整脈薬の作用2007

    • Author(s)
      田村敦, 霊園良恵, 小倉武彦, 植村展子,宮崎勝, 中谷晴昭
    • Organizer
      第24回日本心電学会学術集会
    • Place of Presentation
      名古屋
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Book] 第7章抗不整脈薬の電気生理学的作用"QT間隔の診かた・考え方"(犀川哲典, 小野克重. 編)2007

    • Author(s)
      中谷晴昭
    • Total Pages
      259
    • Publisher
      医学書院
    • Related Report
      2008 Final Research Report
  • [Book] QT間隔の診かた・考え方2007

    • Author(s)
      中谷 晴昭
    • Total Pages
      259
    • Publisher
      医学書院
    • Related Report
      2007 Annual Research Report
  • [Book] Medical Topics series不整脈20072007

    • Author(s)
      中谷 晴昭
    • Total Pages
      215
    • Publisher
      メディカルレビュー社
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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