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Nonlinear analysis of the hemodynamics in the artificial heart animals as the aging acceleration model

Research Project

Project/Area Number 06558118
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section試験
Research Field Biomedical engineering/Biological material science
Research InstitutionTohoku University

Principal Investigator

YAMBE Tomoyuki  Instutite of Development, Aging & Cancer, Tohoku University, Assistant Prodessor, 加齢医学研究所, 講師 (70241578)

Co-Investigator(Kenkyū-buntansha) YOSHIZAWA Makoto  Faculty of Engineering Tohoku University, Associate Professor, 工学部, 助教授 (60166931)
MIURA Makoto  School of Medicine Tohoku University, Assistant Professor, 医学部附属病院, 講師 (50239191)
ABE Ken-ichi  Faculty of Engineering Tohoku University, Professor, 工学部, 教授 (70005403)
NITTA Shin-ichi  Institute of Development, Aging and Cancer, Tohoku University, Professor, 加齢医学研究所, 教授 (90101138)
内田 直樹  東北大学, 医学部, 講師 (70241635)
田中 元直  東北大学, 加齢医学研究所, 教授 (40006094)
Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1996: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1995: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1994: ¥5,000,000 (Direct Cost: ¥5,000,000)
Keywordstotal artificial heart / chaos / fractal / nonlinear dynamics / aging / ventricular assist system / sympathetic nerve activity / automatic control / total artificial heart, / chaos, / fractal, / nonliner dynamics, / aging, / ventricular assist system, / sympathetic nerve activity, / automatic control, / chaos / fractal / entoropy / information / fluctuation / total artificial heart / ventricular assist device / fractal dimension / KS-entropy / 人工心臓 / リアプノフ指数 / KSエントロピー / フラクタル次元 / 決定論的カオス
Research Abstract

The population composition of this country shifts to old age. Accordingly investigation of essence of "Aging" phenomenon is urgent business. Aging progresses in the whole of biological system. Thus, it is thought that it can't be elucidated by the reduction theory which was the mainstream in the past scientifis research. It is thought that application of the methodology of an analysis that established point of view with the whole system becomes necessary. In the animals with total artificial hearts, many pathophysiological changes such as Hypertension, elevation of central venous pressure, alteration of humoral factor, had been reported in some institutions.
So, an artificial heart animal was positioned as "Aging acceleration model". A change in the time series courve of hemodynamics of an artificial heart animal was observed with the chronic experiment using healthy adult goats. In this research, analysis by the nonlinear dynamics which paid attention to dynamic characteristic of the whole system was used.
Major research result was mentioned in the following.
1. Establishment of procedure of the biometrics that nonlinear mechanics was applied was tried.
2. Non-linear analysis of the hemodynamics with chronic experimental artificial heart animals. Comparison examination with hemodynamics by a natural heart was done.
3. Autonomic nerve activity recording was carried out in the artificial heart animals.
4.Long term survival experiment of artificial heart chronic experimental animals were carried out. The change that artificial heart control algorithrm gave to this physiology was observed. Consideration was added about the hemodynamics which was the optimum which controlled aging.

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (35 results)

All Other

All Publications (35 results)

  • [Publications] T.Yambe,et al.: "Strange hemodynamic attractor parameter with 1/R total artificial heart sutomatic control algorithm" Int J Artif Organs. 19. 302-306 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe,et al.: "Extraction of the 1/f fluctuation in hemodynamics of an artifcial heart" Artif Organs. 20. 777-782 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe,et al.: "Spectral analysis of the hemodynamics during left ventricular assistance" Int J Artif Organs. 19. 367-371 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe,et al.: "Fluctuations of the hemodynamic derivatives during left ventricular assistance using oscillated blood flow" Artif Organs. 20. 637-640 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe,et al.: "Fractal analysis of the sympathetic discharges" IIAS Reports. 1996-01. 71-86 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe,et al.: "Fractal circulation of the total artificial heart" IIAS Reports. 1996-01. 87-106 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Deterministic chaos in the hemodynamics of an artificial heart." ASAIO Journal. 41. 84-88 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Strange hemodynamic attractor parameter with 1/R total artificial heart automatic control algorithm." Int J Artif Organs. 19. 302-306 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Chaotic hemodynamics during oscillated blood flow." Artif Organs. 18. 633-637 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Fluctuations in sympathetic nerve activity in animal without natural heartbeat." Artif Organs. 18. 775-780 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Chaotic behavior of the hemodynamics with ventricular assist device." Int J Artif Organs. 18. 17-21 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Fractal dimension analysis of the oscillated blood flow with vibrating flow pump." Artif Organs. 19. 729-733

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Can the artificial heart make the circulation become fractal?" Int J Artif Organs. 18. 317-320 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Fractal dimension analysis of the muscle sympathetic nerve activity." Pathophysiology. 2. 173-176 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Extraction of the 1/f fluctuation in hemodynamics of an artificial heart." Artif Organs. 20. 777-782 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Spectral analysis of the hemodynamics during left ventricular assistance." Int J Artif Organs. 19. 367-371 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Yambe, et al.: "Fluctuations of the hemodynamic derivatives during left ventricular assistance using oscillated blood flow." Artif Organs. 20. 637-640 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T. Yambe, et al.: "Strange hemodynamic attractor parameter with I/R total srtificial heart sutomatic control algorithm" Int J Artif Organs. 19. 302-306 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Yambe, et al.: "Extraction of the 1/f fluctuation in hemodynamics of an artificial heart" Artif Organs. 20. 777-782 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Yambe, et al.: "Spectral analysis of the hemodynamics during left ventricular assistance" Int J Artif Organs. 19. 367-371 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Yambe, et al.: "Fluctuations of the hemodynamic derivatives during left ventricular assistance using oscillated blood flow" Artif Organs. 20. 637-640 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Yambe, et al.: "Fractal analysis of the sympathetic discharges" IIAS Reports. 1996-01. 71-86 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Yambe, et al.: "Fractal circulation of the total artificial heart" IIAS Reports. 1996-01. 87-106 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Yambe, et al: "Deterministic chaos in the hemodynamics of an artificial heart" ASAIO Journal. 41. 84-88 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Yambe, et al: "Chaotic behavior of the hemodynamics with ventricular assist device" Int. J. Artif. Organs. 18. 017-021 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Yambe, et al: "Can the artificial heart make the circulation become fractal?" Artif. Organs. 19. 190-196 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Yambe, et al.: "Fractal dimension analysis of the oscillated blood flow with vibrating flow pump" Artif. Organs. 19. 729-733 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Yambe, et al.: "Fractal dimension analysis of the muscle sympathetic nerve activity" Pathophysiology. 2. 173-176 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Yambe, et al.: "Chaotic hemodynamics during oscillated blood flow" Artif. Organs. 18. 633-637 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Yambc,et al.: "Chaotic hemodynamics during oscillated blood flow." Artificial Organs. 18. 633-637 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Yambc,et al.: "Fluctuations in sympathetic nerve activity in animal without natural heartbeat." Artificial Organs. 18. 775-780 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Yambc,et al.: "Deterministic chaos in hemodynamics of an artificial heart" ASAIO Journal. 41. 84-88 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Yambc,et al.: "Can artificial heart make the circulation to be fractal ?" International Journal of Artificial Organs. 18(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] 山家智之,他: "健常者における左室収縮時系列曲線のカオス解析の試み" Journal of Cardiology. 24. 469-474 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 山家智之,他: "主成分分析の手法を用いた高次元位相空間における交感神経活動時系列曲線アトラクターの再構築" 自律神経. 31. 295-302 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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