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Interaction between Windkessel Function of the Proximal Aorta and Cerebral Hemodynamics

Research Project

Project/Area Number 17H02186
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied health science
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Sugawara Jun  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 研究グループ長 (00357261)

Co-Investigator(Kenkyū-buntansha) 前田 清司  筑波大学, 体育系, 教授 (30282346)
樽味 孝  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (40825858)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Keywords脳血管疾患 / 動脈スティフネス / 加齢 / 運動 / 心血管系疾患 / 姿勢 / 運動トレーニング / 動脈硬化 / 身体活動
Outline of Final Research Achievements

Aortic stiffening augments cerebral hemodynamic pulsatility, a risk of cerebrovascular disease. We provided a simple formula to estimate the arterial path length for heart-brachial pulse wave velocity (hbPWV), a novel measure of proximal aortic stiffness. In addition, we found that hbPWV is a potential marker of proximal aortic stiffening. Besides, we examined the contribution of aortic compliance (an inverse index of stiffness) to the response of cerebral blood flow fluctuation to dynamic orthostatic challenge. A dynamic orthostatic challenge may evoke substantial cardiac and cerebral pulsatile fluctuation. Regarding this, we found that the lower aortic stiffness (higher compliance) in the endurance athletes accommodates the cardiac ejection and buffers the potential increase in pulsatility at end-organs such as the brain.

Academic Significance and Societal Importance of the Research Achievements

脳血管疾患は要介護の主要原因であり、その発症リスクが加齢とともに高まる。それゆえ、超高齢社会を迎えた本邦が取り組むべき火急的課題といえる。これを踏まえ本研究では、「発症のリスク評価」ならびに睡眠と身体活動のフォーカスを当てた「ライフスタイル・モディフィケーションによるリスクマネジメント」という観点から、脳血管疾患の発症予防に資する知見の集積を目指した。本研究で得られた成果は、脳血管疾患発症における近位大動脈のウインドケッセル機能の臨床医学的意義を明らかにするとともに、発症予防に資する知見を提供するものである。

Report

(4 results)
  • 2020 Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (8 results)

All 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] Texas Health Presbyterian Hospital/UTSW Medical Center(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Effects of Mild Orthostatic Stimulation on Cerebral Pulsatile Hemodynamics2019

    • Author(s)
      Ninomiya Y, Tomoto T, Ogoh S, Imai T, Takahashi K, Sugawara J
    • Journal Title

      Front Physiol

      Volume: 10 Pages: 230-230

    • DOI

      10.3389/fphys.2019.00230

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Arterial path length estimation for heart-to-brachium pulse wave velocity2018

    • Author(s)
      Sugawara J, Tomoto T, Tanaka H
    • Journal Title

      Hypertens Res

      Volume: Mar 14 Issue: 6 Pages: 444-450

    • DOI

      10.1038/s41440-018-0019-3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] CAROTID ARTERIAL STIFFNESS AND CEREBRAL BLOOD FLOW PULSATILITY IN PATIENTS WITH AMNESTIC MILD COGNITIVE IMPAIRMENT2019

    • Author(s)
      Tomoto T, Sugawara J, Tarumi T, Chiles C,Curtis B, Pasha E, Zhang R.
    • Organizer
      BRAIN & BRAIN PET 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 周波数解析による頸動脈プロファイリング:加齢と身体活動量の影響2019

    • Author(s)
      樽味孝、東本翼、菅原順
    • Organizer
      第74回日本体力医学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Impact of Aging on the Windkessel Function of Carotid Artery2019

    • Author(s)
      Sugawara J, Tomoto T, Tarumi T
    • Organizer
      Experimental Biology 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cerebrovascular Impedance across the Adult Life Span2019

    • Author(s)
      Sugawara J, Tarumi T, Xing CY, Liu J, Tomoto T, Pasha E, Zhang R.
    • Organizer
      Experimental Biology 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Mild Orthostatic Stimulation on Cerebral Pulsatile Hemodynamics2018

    • Author(s)
      Ninomiya Yuka, Tomoto Tsubasa, Ogoh Shigehiko, Imai Tomoko, Takahashi Koki, Sugawara Jun
    • Organizer
      American College of Sports Medicine Annual Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-01-27  

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