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Invesfaation for the mechanism of pulmonary edema

Research Project

Project/Area Number 05670520
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Respiratory organ internal medicine
Research InstitutionTokyo Medical and Dental University

Principal Investigator

TSUKIMOTO Koichi  Tokyo Medical & Dental Univ.Dep of Medicine Assistant, 医学部, 助手 (80242204)

Co-Investigator(Kenkyū-buntansha) MIYAZATO Itsuro  Tokyo Medical & Dental Univ.Dep of Medicine Associate professor, 医学部, 助教授 (10014375)
ICHIOKA Masahiko  Tokyo Medical & Dental Univ.Dep of Medicine Lecturer, 医学部, 講師 (00176281)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1993: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywordspulmonary edema / hydrostatic pressure / increased permeability / Leukotriene B_4 / Tromboxane B_2 / 肺毛細血管
Research Abstract

Pulmonary edema has been classified into two categories : hydrostatic (cardiogenic) edema and high permeability edema. However, there is substantial overlap between the groups. There are also other types of pulmonary edema in which both increased hydrostatic pressure and increased permeability coexist. Examples of these are neurogenic pulmonary edema and high altitude pulmonary edema. We have been seeking the possibility in which increased hydrostatic pressure might cause increased permeability. In the present study, using the rabbit perfused model, at high transmural pressure, protein concentration in both bronchoalveolar lavage fluid and estimated alveolar fluid increased to the level which satisfies increased permeability. High transmural pressure also caused the increase in the amount of both Leukotriene B_4 and Tromboxane B_2 in bronchoalveolar fluid. This resembles the finding which Schoene reported the increases of both Lukotriene B_4 and Tromboxane B_2 in bronchoalveolar fluid in the patients with high altitude edema. This indicates the possibility that high transmural pressure might play a major role in inducing high altitude pulmonary edema.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Tsukimoto et al: "Protein,cell,and LTBu concentrations of lung edema fluid. produced by high capillary Transmural pressure in rebbit." Journal of Applied Physiology. 76. 321-327 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Tsukimoto K.et al: "Protein, cell, and LTB_4 corcentrations of lung edema fluid produced by high capollary pressures in rabbit" J.Applied Physiol.76. 321-327 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Tsukimoto et al: "Protein,cell,and LTB_4 concentrations of lung edema fluid prcduced by high capillary pressures in rabbit" Journal of Applied Physiology. 76. 321-327 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Tsukimoto et al: "Ultra structural appearances of pulmonary capillaries at high transmural pressures" Journal of Applied Physiology. 71. 573-582 (1991)

    • Related Report
      1994 Annual Research Report
  • [Publications] West et al: "Stress failure in pulmonary capillaries" Journal of Applied Physiology. 70. 1731-1742 (1991)

    • Related Report
      1994 Annual Research Report
  • [Publications] Fu et al: "High lung volume increases stress failure in pulmonary capillaries" Journal of Applied Physiology. 73. 123-133 (1992)

    • Related Report
      1994 Annual Research Report
  • [Publications] Elliott et al: "Short-term reversibility of ultrastructural changes in pulmonary capillaries caused by stress failure" Journal of Applied Physiology. 73. 1150-1158 (1992)

    • Related Report
      1994 Annual Research Report
  • [Publications] Tsukimoto et al: "Protein,cell,and LTB_4 concentrations of Lung edema fluid produced by high capillary pressure in rabbit." Journal of Applied Physiology. 76. 321-327 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Tsukimoto et al: "Ultra structural appearances of pulmonary capillaries at high transmural pressures" Journal of Applied Physiology. 71. 573-582 (1991)

    • Related Report
      1993 Annual Research Report
  • [Publications] West et al: "Stress failure in pulmonary capillaries" Journal of Applied Physiology. 70. 1731-1742 (1991)

    • Related Report
      1993 Annual Research Report
  • [Publications] Fu et al: "High lung uolume increases stress failure in pulmonary capillaries" Journal of Applied Physiology. 73. 123-133 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] Elliott et al: "Short-term reversibility of ultrastructural changes in pulmonary capillaries caused by stress failure" Journal of Applied Physiology. 73. 1150-1158 (1992)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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