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The values of TF, TFPI, and platelet aggregability in acute coronary syndromes

Research Project

Project/Area Number 11670692
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Circulatory organs internal medicine
Research InstitutionKumamoto University

Principal Investigator

OGAWA Hisao  Kumamoto University School of Medicine Professor, 医学部, 教授 (50177135)

Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2000: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordsacute coronary syndrome / tissue factor / tissue factor pathway inhibitor / platelet aggregability / cardiac event / prognostic factor / 組織因子 / 外因系凝固インヒビター
Research Abstract

Hypercoagulability is associated with expression of tissue factor (TF) in patients with acute coronary syndromes (ACS). Tissue factor pathway inhibitor (TFPI) regulates the extrinsic coagulation pathway mediated by TF.Plasma TF levels were higher in patients with ACS than in those with stable exertional angina. TF expressed on macrophages in directional coronary atherectomy specimens obtained from patients with ACS.Plasma TFPI can be separated into free TFPI and lipoprotein associated TFPI.Anticoagulant activity of lipoprotein-associated TFPI is markedly lower than free TFPI.The plasma free TFPI levels were elevated in patients with ACS.TFPI is co-localized with TF in various atherosclerotic lesions of coronary artery. In conclusion, the increase of plasma TF and TFPI levels reflects the heightened expression of TF and TFPI at unstable coronary plaques in patients with ACS.Platelet aggregability was evaluated using a new aggregometer with Iaser-light scattering which can determine the total light intensities of small, medium, and large-sized aggregates. Production of small-sized platelet aggregates were increased in patients with ACS than those with stable exertional angina. Production of medium or large-sized platelet aggregates were not increased in patients with ACS.Furthermore, increased number of small-sized platelet aggregates on admission predicted poor prognosis during in-hospital stay in patients with ACS.On the other hand, patients with unstable angina and heightened TF levels were at increased risk for unfavorable outcomes. In conclusion, the elevated plasma TF levels and small-sized platelet aggregates are associated with reccurrence of coronary events in patients with ACS.Patients with ASC who have elevated plasma TF levels or increased small-sized platelet aggregates should receive enough anti-coagulation or anti-platelet therapy to improve the levels.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Hirofumi Soejima,Hisao Ogawa, et al.: "Hieghtened tissue factor associated with tissue factor pathway inhibitor and prognosis in patients with unstable angina"Circulation. 99. 2908-2913 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hisao Ogawa, et al.: "Plasma soluble intercellular adhesion molecule-1 levels in coronary circulation in patients with unstable angina"The American Journal of Cardiology. 83. 38-42 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hirofumi Soejima,Hisao Ogawa, et al.: "Angiotensin-converting enzyme inhibition reduces monocyte chemoattractant protein-1 and tissue factor"Journal of the American College of Cardiology. 34. 983-988 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hisao Ogawa, et al.: "Difference in fibrinolytic activity between multivessel coronary spasm and one-vessel coronary spasm"The American Journal of Cardiology. 85. 98-101 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Shinzo Miyamoto,Hisao Ogawa, et al.: "Formation of platelet aggregates after attacks with coronary spastic angina pectoris"The American Journal of Cardiology. 85. 494-497 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tomohiro Sakamoto,Hisao Ogawa, et al.: "Repid change of platelet aggregability in acute hyperglycemia : detection by a novel laser-light scattering method"Thrombosis and Haemostasis. 83. 475-479 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hirofumi Soejima, Hisao Ogawa, et al.: "Heightened tissue factor associated with tissue factor pathway inhibitor and prognosis in patients with unstable angina"Circulation. 99. 2908-2913 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hisao Ogawa, et al.: "Plasma soluble intercellular adhesion molecule-1 levels in coronary circulation in patients with unstable angina"The American Journal of Cardiology. 83. 38-42 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hirofumi Soejima, Hisao Ogawa, et al.: "Angiotensin-converting enzyme inhibition reduces monocyte chemoattractant protein-1 and tissue factor"Journal of the American College of Cardiology. 34. 983-988 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hisao Ogawa, et al.: "Difference in fibrinolytic activity between multivessel coronary spasm and one-vessel coronary spasm"The American Journal of Cardiology. 85. 98-101 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Shinzo Miyamoto, Hisao Ogawa, et al.: "Formation of platelet aggregates after attacks with coronary spastic angina pectoris"The American Journal of Cardiology. 85. 494-497 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tomohiro Sakamoto Hisao Ogawa, et al.: "Rapid change of platelet aggregability in acute hyperglycemia : detection by a novel laser-light scattering method"Thrombosis and Haemostasis. 83. 475-479 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tomohiro Sakamoto,Hisao Ogawa et al.: "Rapid change of platelet aggregability in acute hyperglycemia"Thrombosis and Haemostasis. 83. 475-479 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Shinzo Miyamoto,Hisao Ogawa et al.: "Formation of platelet aggregates after attacks of coronary spastic angina pectoris"The American Journal of Cardiology. 85. 494-497 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hisao Ogawa, et al.: "Difference in fibrinolytic activity between multivessel coronary spasm and one-vessel coronary spasm"The American Journal of Cardiology. 85. 98-101 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nobuyasu Yamamoto,Hisao Ogawa et al.: "The effect of heparin on tissue factor and tissue factor pathway inhibitor in patients with acute myocardial infarction"International Journal of Cardiology. 75. 267-274 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Ichiro Kajiwara,Hisao Ogawa et al.: "The prognostic value of small-sized platelet aggregates in unstable angina : Detection by a novel laser-light scattering method"Thrombosis Research. 101. 109-118 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hirofumi Soejima,Hisao Ogawa et al.: "Comparison of effects of losartan-vs-enalapril on fibrinolysis and coagulation in patients with acute myocardial infarction"The American Journal of Cardiology. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hirohumi Soejima,Hisao Ogawa,et al.: "Heightened tissue factor associated with tissue factor pathway inhibitor and prognosis in patients with unstable angina"Circulation. 99. 2908-2913 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Koichi Kaikita,Motohiro Takeya,Hisao Ogawa,et al.: "Co-localization of tissue factor and tissue factor pathway inhibitor in coronary atherosclerosis"Journal of Pathology. 188. 180-188 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hirohumi Soejima,Hisao Ogawa,et al.: "Angiotensin-converting enzyme inhibition reduces monocyte chemoattractant protein-1 and tissue factor levels in patients with myocardial infantion"Journal of the American College of Cardiology. 34・4. 983-988 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hirorhumi Yasue,Hisao Ogawa,et al.: "Effects of aspirin and trapidil on cardiovascular events after acute myocardial infarction"The American Journal of Caodiology. 83・9. 1308-1313 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hisao Ogawa,Hisakazu Suefuji,et al.: "Difference in fibrinolytic activity between multivessel coronary spasm and one-ressel coronary spasm"The American Journal of Cardiology. 85・1. 98-101 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Shinzo Miyamoto,Hisao Ogawa,et al.: "Formation of platelet aggregates after attacks of coronary spastic angina pectoris"The American Journal of Cardiology. 85・4. 494-497 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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