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THE PULMONARY FUNCTION IN LUNG INJURY INDUCED BY SEVERAL CUSES IN AWAKE SHEEP

Research Project

Project/Area Number 63480209
Research Category

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

Allocation TypeSingle-year Grants
Research Field Respiratory organ internal medicine
Research InstitutionShinshu University

Principal Investigator

KUBO Keishi  Shinshu Univ., Medical Sch., Assistant Prof., 医学部, 講師 (80143965)

Co-Investigator(Kenkyū-buntansha) MATUZAWA Yukinori  shinshu university hospital, Assistant Doctor, 医学部附属病院, 助手 (40219423)
KOBAYASHI Toshio  Shinshu University Hospital, Assistant Prf., 医学部附属病院, 講師 (80020775)
UEDA Gou  Shinshu Univ., Medical Sch., Professor, 医学部附属心脈管研究施設, 教授 (10020702)
SAKAI Akio  Shinshu Univ., Medical Sch., Associate Prof., 医学部附属心脈管研究施設, 助教授 (70020758)
平山 二郎  信州大学, 医学部附属病院, 助手 (90156696)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥6,100,000 (Direct Cost: ¥6,100,000)
Fiscal Year 1989: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1988: ¥4,000,000 (Direct Cost: ¥4,000,000)
KeywordsAwake Sheep / Lung Injury / Pulmonary Function / Dynamic Compliance / Lung Resistance / 肺機能(換気力学) / TNF(tumor necrosis factor) / エンドトキシン / 肺血管傷害 / 肺空気塞栓 / 換気力学
Research Abstract

We studied the changes of pulmonary function such as lung mechanics and the differences of pathophysiology in lung injury induced by several causes in awake sheep. We determined lung mechanics by the following method. Silastic envelopes were placed in the pleural space for the measurement of pleural pressure through a right-sided thoracotomy. A chronictracheo stomy was made. A size 10 Shiley cuffed tracheostomy tube was inserted. Flow and tidal volume (Vt) was measured by a pneumotachograph (Fleish) attached to the tracheostomy tube. Transpulmonary pressure (Ptp) was measured by a differential pressure transducer (Validyne). Dynamic lung compliance (Cdyn) was calculated by dividing Vt by Ptp. Lung resistance(RI.) was calculated by dividing Ptp by flow. We also prepared chronically instrumented sheep to measure the lung lymph dynamics and pulmonary hemodynamics. The responses of the lu ng lymph dynamics and pulmonary hemodynamics to endotoxemia(ETX), pulmonary air embolism(PE), paraquat toxicity(PA) and increased left atrial pressure(IP) are different. ETX, PE and PA produced increased permeability pulmonary edema. ETX and PE produced pulmonary hypertension,though pulmonary hemodynamics in PA did not changes.
Lung lymph flow increased 3hr after paraquat. These findings suggest that the development of lung injury in increased permeability pulmonary edema is different according to the cause for lung injury. We compared the changes of lung mechanics in TNF(tumor necrosis factor)-induced lung injury with those in ETX-induced lung injury. In both groups, Cdyn decreased and R_L increased, when pulmonary artery pressure was elevated. These findings suggest that TNF and ETX showed the almost same response to the pulmonary hemodynamics and airway. However, the start of these changes was earlier in TNF group than in ETX group.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] 篠崎史郎他: "覚醒時緬羊のTumor necrosis factorおよびendotoxin投与による換気力学的検討" 第30回 日本胸部疾患学会(発表予定). (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Koizumi他: "Effects of thromboxane synfhase inhibition on TNF (tumor necrosis factor)-induced lung injury in sheep" 1990 Annual Meeting of American Thoracic Society(発表予定). (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] K.Kubo et.al: "The lung lymph dynamcs as an indicator of pulmonary edema" The Proceedings of XIIth International congress of lymphologg(in press). (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 篠崎史郎他: "覚醒時緬羊の肺血管傷害時の換気力学的検討" 日胸疾会誌(増刊号). 27. 208 (189)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 久保恵嗣他: "左房圧上昇、エンドトキシン血症および肺微小空気塞栓における二重指示薬希釈血管外肺水分量測定の評価" 日胸疾会誌. 26. 825-832 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 久保恵嗣他: "非心臓性肺水腫の臨床的検討" 信州医誌. 36. 465-478 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 久保恵嗣,小林俊夫: "ARDSの動物モデル、Annual Review 呼吸器 1990" 太田保世,諏訪邦夫,堀江孝至,吉村博邦, 33-41 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Shinozaki, S. et.al: "Lung mechanics in TNF(tumor necrosis factor)- and endotoxin-induced lung injury in awake sheep (in press)" 30th Nippon Kyoubu Sikkan Gakkai, 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Koizumi, T. et.al: "Effects of thromboxane synthase inhibition on TNF(tumor necrosis factor)-induced lung injury in sheep (in press)" 1990 Annual Meeting of American Thoracic Society.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kubo, K. et.al: "The lung lymph dynamics as an indicator of pulmonary edema (in press)" The Proceedings of XXIIth International Congress of Lymphology.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Shinozaki, S. et.al: "Lung mechanics in lung injury in awake sheep" Nippon Kyoubu Sikkan Gakkai Zassi, 27(suppl);208, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kubo, K. et.al: "Effects of increased left atrial pressure, endotoxemia and pulmonary air embolism on the measurement of extravascular lung thermal volume" Nippon Kyoubu Sikkan Gakkai Zassi, 26:825-832, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kubo, K. et.al: "Clinical study of noncardiogenic pulmonary edema" Shinshu Igaku Zassi, 36:465-478, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kubo, K. and Kobayashi, T.: "Animal model for ARDS" Annual Review Kokyuuki 1990 (ed. by Oota, H. et. al), p.33-41, Chugai Igakusha, Tokyo, 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 篠崎史郎他: "覚醒時緬羊のTumor necrosis factorおよびendotoxin投与による換気力学的検討" 第30回日本胸部疾患学会. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Koizumi et.al: "Effects of thromboxane sgnthase inhibition of TNF(tumor necrosis factor)-induced lung injury in sheep" 1990 Annual Meeting of American Thoracic Society. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] K.Kubo et al: "The lung lymph dynamics as an indicator of pulmonary edema" The Proceedings of XIIth International Congress of Lymphology. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 篠崎史郎 他: 日本胸部疾患学会雑誌. 27. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Keishi Kubo 他: J.Appl.Physiol.

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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