2012 Fiscal Year Research-status Report
抗加齢に着目した難治性心不全に対する新しい治療法の開発
Project/Area Number |
24591100
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Research Institution | Fukushima Medical University |
Principal Investigator |
竹石 恭知 福島県立医科大学, 医学部, 教授 (40272067)
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Co-Investigator(Kenkyū-buntansha) |
及川 雅啓 福島県立医科大学, 医学部, 助教 (30457775)
鈴木 聡 福島県立医科大学, 医学部, 助教 (60536944)
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Project Period (FY) |
2012-04-01 – 2015-03-31
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Keywords | 加齢 / 心不全 / 酸化ストレス / ドキソルビシン / アポトーシス / 遺伝子操作マウス |
Research Abstract |
Senescence marker protein-30 (SMP30)は、ノックアウトマウス(SMP30-KO)の解析から抗酸化作用、抗アポトーシス作用を有し、抗加齢蛋白として機能していることが示唆されている。心不全の発症と進展に酸化ストレスやアポトーシスが深く関与していることが広く認識されている。SMP30 は抗酸化作用、抗アポトーシス作用を有し、心不全の発症と病態の進展を抑制する可能性があるが、これまで心臓においてはSMP30 の機能については十分に検討されていない。我々は SMP30 遺伝子を心臓にのみ選択的に過剰発現したトランスジェニックマウス(SMP30-TG)を作成した。SMP30-TG マウスと SMP30-KO マウスのフェノタイプを詳細に対比することで、SMP30 の心臓での機能を in vivo で検討する。本研究では、SMP30 の心不全の発症と進展における役割を明らかにし、抗加齢という観点から新しい心不全治療戦略を確立することを目的とした。 今年度はドキソルビシン(DOX) による心機能低下における SMP30 の役割を検討した。12週齢の野生型(WT)マウス、SMP30-KO マウスの腹腔内に DOX 20 mg/kg ないし生食を投与した。DOX 投与1週間後、心エコー検査を行い、サクリファイスし心臓を摘出した。SMP30-KO マウスでは、WT マウスと比べて DOX 投与後の左室駆出率は低下し、線維化は増加、superoxide 産生は増加、8OHdG 陽性細胞数、TUNEL 陽性細胞数は増加、caspase-3 活性、Bax/Bcl-2 比、JNK 活性は上昇した。SMP30-KO マウスでは DOX による心機能低下が増悪し、酸化ストレスによるアポトーシスシグナルの活性化を認め、SMP30 の心保護作用が示唆された。
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Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
ドキソルビシン心筋症の発症機序のひとつに SMP30 が関与している可能性を KO マウスを用いて明らかにした。
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Strategy for Future Research Activity |
実験補助員の確保が難しく謝金が少なくなった、マウスの繁殖が予定どおりいかずに飼育費が少なかった、等により次年度に使用する研究費が生じた。しかし、その後状況は改善し、研究は順調に遂行されている。
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Expenditure Plans for the Next FY Research Funding |
次年度分の研究費と合わせて、計画に沿って適切に使用する予定である。 物品費 1,645,154(H24年度分 645,154 + H25年度分 1,000,000) 旅費 100,000 謝金 424,000(H24年度分 124,000 + H25年度分 300,000)
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Research Products
(36 results)
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[Journal Article] A reduction of coronary flow reserve is associated with chronic kidney disease and long-term cardio-cerebrovascular events in patients with non-obstructive coronary artery disease and vasospasm2012
Author(s)
Sakamoto N, Iwaya S, Owada T, Nakamura Y, Yamauchi H, Hoshino Y, Mizukami H, Sugimoto K, Yamaki T, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
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Journal Title
Fukushima Journal of Medical Science
Volume: 58
Pages: 136-143
DOI
Peer Reviewed
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[Journal Article] 'A single night' beneficial effects of adaptive servo-ventilation on cardiac overload, sympathetic nervous activity, and myocardial damage in patients with chronic heart failure and sleep-disordered breathing2012
Author(s)
Yoshihisa A, Suzuki S, Miyata M, Yamaki T, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
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Journal Title
Circulation Journal
Volume: 76
Pages: 2153-2158
DOI
Peer Reviewed
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[Journal Article] Adaptive servo ventilation improves Cheyne-Stokes respiration, cardiac function, and prognosis in chronic heart failure patients with cardiac resynchronization therapy2012
Author(s)
Miyata M, Yoshihisa A, Suzuki S, Yamada S, Kamioka M, Kamiyama Y, Yamaki T, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
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Journal Title
Journal of Cardiology
Volume: 60
Pages: 222-227
DOI
Peer Reviewed
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[Journal Article] Dilated phase of hypertrophic cardiomyopathy caused by two different sarcomere mutations, treated with surgical left ventricular reconstruction and cardiac resynchronization therapy with a defibrillator2012
Author(s)
Sato A, Sakamoto N, Ando K, Kaneshiro T, Uekita H, Sugimoto K, Yamaki T, Kunii H, Nakazato K, Suzuki H, Saitoh S, Sato M, Tamagawa K, Arimura T, Kimura A, Takeishi Y
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Journal Title
Internal Medicine
Volume: 51
Pages: 2559-6254
DOI
Peer Reviewed
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[Journal Article] Nicorandil prevents Gαq-induced progressive heart failure and ventricular arrhythmias in transgenic mice2012
Author(s)
Hirose M, Takeishi Y, Nakada T, Shimojo H, Kashihara T, Nishio A, Suzuki S, Mende U, Matsumoto K, Matsushita N, Taira E, Sato F, Yamada M
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Journal Title
PLoS One
Volume: 7
Pages: e52667
DOI
Peer Reviewed
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[Journal Article] Soluble amyloid precursor protein 770 is released from inflamed endothelial cells and activated platelets: a novel biomarker for acute coronary syndrome2012
Author(s)
Kitazume S, Yoshihisa A, Yamaki T, Oikawa M, Tachida Y, Ogawa K, Imamaki R, Hagiwara Y, Kinoshita N, Takeishi Y, Furukawa K, Tomita N, Arai H, Iwata N, Saido T, Yamamoto N, Taniguchi N
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Journal Title
Journal of Biological Chemistry
Volume: 287
Pages: 40817-40825
DOI
Peer Reviewed
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[Presentation] High serum level of tenascin-C is related to coronary plaque rupture in patients with acute coronary syndrome2012
Author(s)
Sakamoto N, Misaka T, Mizukami H, Suzuki S, Sugimoto K, Yamaki T, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Plasma carnitine level in heart failure patients with sleep disordered breathing2012
Author(s)
Miyata M, Yoshihisa A, Yamaki T, Iwaya S, Owada T, Suzuki S, Oikawa M, Sugimoto K, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Soluble amyloid precursor protein 770 is a novel marker for diagnosis of acute coronary syndrome2012
Author(s)
Yamaki T, Yoshihisa A, Miyata M, Suzuki S, Oikawa M, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Kitazume S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Adaptive servo ventilation improves long-term prognosis in heart failure patients with preserved left ventricular ejection fraction and sleep disordered breathing2012
Author(s)
Yoshihisa A, Miyata M, Suzuki S, Yamaki T, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Overnight beneficial impacts of adaptive servo ventilation on cardiac overload, sympathetic nervous activity, and myocardial damage in chronic heart failure patients with Cheyne-Stokes respiration2012
Author(s)
Iwaya S, Yoshihisa A, Miyata M, Suzuki S, Yamaki T, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Utility of cardio-ankle vascular index and flow-mediated dilatation for non-invasive detection of vascular dysfunction in sleep disordered breathing2012
Author(s)
Owada T, Yoshihisa A, Iwaya S, Miyata M, Suzuki S, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Adaptive servo ventilation improves cardio-renal function and prognosis in heart failure patients with chronic kidney disease and sleep disordered breathing2012
Author(s)
Owada T, Yoshihisa A, Iwaya S, Miyata M, Suzuki S, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Effect of adaptive servo ventilation on autonomic nervous balance: analysis of heart rate variavility by wireless Holter ECG2012
Author(s)
Iwaya S, Yoshihisa A, Owada T, Miyata M, Sugimoto K, Yamaki T, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Scientific Sessions of American Heart Association 2012
Place of Presentation
Los Angeles, California, USA
Year and Date
20121103-20121107
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[Presentation] Adaptive servo ventilation improves cardiac function and reduces re-hospitalization in chronic heart failure patients with Cheyne-Stokes respiration after cardiac resynchronization therapy2012
Author(s)
Miyata M, Yoshihisa A, Suzuki S, Sugimoto K, Yamaki T, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Congress of the European Society of Cardiology 2012
Place of Presentation
Munich, Germany
Year and Date
20120825-20120829
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[Presentation] Adaptive servo ventilation improves cardio-renal function and prognosis in heart failure patients with chronic kidney disease and sleep disordered breathing2012
Author(s)
Owada T, Yoshihisa A, Miyata M, Suzuki S, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Congress of the European Society of Cardiology 2012
Place of Presentation
Munich, Germany
Year and Date
20120825-20120829
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[Presentation] The association between sleep-disordered breathing and life-threatening ventricular arrhythmias in patients with chronic heart failure2012
Author(s)
Yamada S, Suzuki H, Sato M, Iwaya S, Kamioka M, Kamiyama Y, Suzuki S, Yoshihisa A, Saitoh S, Takeishi Y
Organizer
Congress of the European Society of Cardiology 2012
Place of Presentation
Munich, Germany
Year and Date
20120825-20120829
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[Presentation] Adaptive servo ventilation improves long-term prognosis in heart failure patients with preserved left ventricular ejection fraction and sleep disordered breathing2012
Author(s)
Suzuki S, Yoshihisa A, Miyata M, Yamaki T, Sugimoto K, Kunii H, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Congress of the European Society of Cardiology 2012
Place of Presentation
Munich, Germany
Year and Date
20120825-20120829
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[Presentation] Overnight beneficial impacts of adaptive servo ventilation on cardiac overload, sympathetic nervous activity, and myocardial damage in chronic heart failure patients with Cheyne-Stokes respiration2012
Author(s)
Suzuki S, Yoshihisa A, Miyata M, Sugimoto K, Kunii H, Yamaki T, Nakazato K, Suzuki H, Saitoh S, Takeishi Y
Organizer
Congress of the European Society of Cardiology 2012
Place of Presentation
Munich, Germany
Year and Date
20120825-20120829