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The physiological and statistical relationship of a development of heart failure of preserved ejection fraction and an arterial baroreflex dysfunction

Research Project

Project/Area Number 15K19386
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Cardiovascular medicine
Research InstitutionKyushu University

Principal Investigator

Sakamoto Kazuo  九州大学, 医学研究院, 共同研究員 (80722363)

Research Collaborator OGA Yasuhiro  
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords動脈圧受容器反射 / 心不全 / 自律神経不全 / モデル化 / 動脈圧反射
Outline of Final Research Achievements

I clarified the relationship between left atrial pressure fluctuation due to volume intolerance and heart failure in freely moving arterial baroreceptor deficient animal and established a method to stratify the arterial baroreflex function by incorporating a physiological model and computer simulation of baroreflex system. Next, I collected and analyzed the data of blood pressure in humans, and validated the measured blood pressure and optimized the analytical model. Using the analytical model, I found that the elderly's baroreflex function has declined. Furthermore, to improve the simulation accuracy, the analytical model was optimized using heart failure animal models and then the accuracy was improved. The established analytical model of arterial baroreflex function in humans has enabled the quantitative evaluation of the reflex.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (3 results)

All 2017 2016

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 3 results)

  • [Journal Article] Intravenous electrical vagal nerve stimulation prior to coronary reperfusion in a canine ischemia-reperfusion model markedly reduces infarct size and prevents subsequent heart failure.2017

    • Author(s)
      Arimura T, Saku K, Kakino T, Nishikawa T, Tohyama T, Sakamoto T, Sakamoto K, Kishi T, Ide T, Sunagawa K.
    • Journal Title

      Int J Cardiol.

      Volume: 227 Pages: 704-710

    • DOI

      10.1016/j.ijcard.2016.10.074

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Optimal Titration Is Important to Maximize the Beneficial Effects of Vagal Nerve Stimulation in Chronic Heart Failure.2016

    • Author(s)
      Nishizaki A, Sakamoto K, Saku K, Hosokawa K, Sakamoto T, Oga Y, Akashi T, Murayama Y, Kishi T, Ide T, Sunagawa K.
    • Journal Title

      J Card Fail

      Volume: 22 Issue: 8 Pages: 631-638

    • DOI

      10.1016/j.cardfail.2016.04.021

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Baroreflex failure increases the risk of pulmonary edema in conscious rats with normal left ventricular function.2016

    • Author(s)
      Sakamoto K, Hosokawa K, Saku K, Sakamoto T, Tobushi T, Oga Y, Kishi T, Ide T, Sunagawa K.
    • Journal Title

      Am J Physiol Heart Circ Physiol

      Volume: 310 Issue: 2 Pages: H199-H205

    • DOI

      10.1152/ajpheart.00610.2015

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant

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Published: 2015-04-16   Modified: 2018-03-22  

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