Development of core technologies for heart diagnostic imaging apparatus based on nanoanalysis
Project/Area Number |
26560225
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Biomedical engineering/Biomaterial science and engineering
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Research Institution | Jikei University School of Medicine |
Principal Investigator |
Fukuda Norio 東京慈恵会医科大学, 医学部, 准教授 (30301534)
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Co-Investigator(Kenkyū-buntansha) |
照井 貴子 東京慈恵会医科大学, 医学部, 助手 (10366247)
小比類巻 生 東京慈恵会医科大学, 医学部, 助教 (40548905)
大山 廣太郎 東京慈恵会医科大学, 医学部, 特別研究員 (70632131)
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Co-Investigator(Renkei-kenkyūsha) |
ISHIWATA SHIN'ICHI 早稲田大学, 理工学術院, 名誉教授 (10130866)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Keywords | ナノバイオ / 先端機器デバイス / 循環器・高血圧 / 分子イメージング / 先端機能デバイス |
Outline of Final Research Achievements |
1)We developed an experimental system for simultaneous nano-imaging of intracellular Ca dynamics and single sarcomere length in rat neonatal cardiomyocytes. We achieved this by expressing a fluorescence resonance energy transfer-based Ca sensor yellow Cameleon-Nano fused to α-actinin in order to localize to the Z disks. 2)We developed a high-speed (100 fps), high-resolution (20 nm) nano-imaging system for myocardial sarcomeres in living mice. During imaging, we measured macroscopic parameters such as electrocardiogram and left ventricular pressure. 3) We developed a digitally-controlled image reconstruction system for in vivo nano-imaging. Namely, the position of the objective lens was moved downward in the Z-direction during imaging. After experimentation, the LVP record was divided into 17 phases (i.e., 10.2 ms per phase); best-focused images were selected at each phase, and then, combined to obtain an image sequence.
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Report
(5 results)
Research Products
(28 results)
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[Journal Article] Dynamic properties of bio-motile systems as a liquid-crystalline structure2017
Author(s)
Shin'ichi Ishiwata, Makito Miyazaki, Katsuhiko Sato, Koutaro Nakagome, Seine A. Shintani, Fuyu Kobirumaki-Shimozawa, Norio Fukuda, Kazuya Suzuki, Jun Takagi, Yuta Shimamoto, and Takeshi Itabashi
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Journal Title
Mol. Cryst. Liq. Cryst.
Volume: 印刷中
Issue: 1
Pages: 127-150
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] In vivo cardiac nano-imaging: A new technology for high-precision analyses of sarcomere dynamics in the heart2017
Author(s)
Togo Shimozawa, Erisa Hirokawa, Fuyu Kobirumaki-Shimozawa, Kotaro Oyama, Seine A. Shintani, Takako Terui, Yasuharu Kushida, Seiichi Tsukamoto, Teruyuki Fujii, Shin'ichi Ishiwata, and Norio Fukuda
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Journal Title
Prog. Biophys. Mol. Biol.
Volume: 124
Pages: 31-40
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Nano-imaging of the beating mouse heart in vivo: Importance of sarcomere dynamics, as opposed to sarcomere length per se, in the regulation of cardiac function.2016
Author(s)
Kobirumaki-Shimozawa F, Oyama K, Shimozawa T, Mizuno A, Ohki T, Terui T, Minamisawa S, Ishiwata S, Fukuda N
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Journal Title
Journal of General Physiology
Volume: 147
Issue: 1
Pages: 53-62
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Sarcomere length nanometry in rat neonatal cardiomyocytes expressed with α-actinin-AcGFP in Z-discs2014
Author(s)
Shintani, S., Oyama, K., Kobirumaki, F., Shimozawa, F., Ohki, T., Ishiwata, S., and Fukuda, N.
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Journal Title
J. Gen. Physiol.
Volume: 143
Issue: 4
Pages: 513-524
DOI
Related Report
Peer Reviewed
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[Journal Article] Cardiac thin filament regulation and the Frank-Starling mechanism2014
Author(s)
Fuyu Kobirumaki-Shimozawa, Inoue, T. Shintani, S., Oyama, K., Terui, T. Minamisawa, S., Ishiwata, S., and Fukuda, N.
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Journal Title
J. Physiol. Sci.
Volume: 64
Issue: 4
Pages: 221-232
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] SIMULTANEOUS HIGH-PRECISION IMAGING OF LOCAL CALCIUM AND SINGLE SARCOMERE LENGTH IN RAT NEONATAL CARDIOMYOCYTES VIA EXPRESSION OF YELLOW CAMELEON-NANO140 IN Z-DISCS2016
Author(s)
Seiichi Tsukamoto, Kotaro Oyama, Teruyuki Fujii, Fuyu Kobirumaki-Shimozawa, Togo Shimozawa, Seine A. Shintani, Shin’ichi Ishiwata, Norio Fukuda
Organizer
Biophysical Society 60th Annual Meeting, Los Angeles, California, USA
Place of Presentation
Los Angels, Californiam USA
Year and Date
2016-02-27
Related Report
Int'l Joint Research
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