• Clin. Appl. Thromb. Hemost. · Jul 2001

    Plasma levels of total plasminogen activator inhibitor-I (PAI-I) and tPA/PAI-1 complex in patients with disseminated intravascular coagulation and thrombotic thrombocytopenic purpura.

    • R Watanabe, H Wada, Y Miura, Y Murata, Y Watanabe, M Sakakura, Y Okugawa, T Nakasaki, Y Mori, M Nishikawa, E C Gabazza, H Shiku, and T Nobori.
    • DepartmentSecond Department of Internal Medicine, Mie University School of Medicine, Tsu-city, Japan.
    • Clin. Appl. Thromb. Hemost. 2001 Jul 1;7(3):229-33.

    AbstractIn this study, we examined changes in the plasma levels of total plasminogen activator inhibitor-I (PAI-I) and tissue-type plasminogen activator (tPA)/PAI-I complex in patients with disseminated intravascular coagulation (DIC) and in those with thrombotic thrombocytopenic purpura (TTP) to investigate the fibrinolytic function and its relation to organ failure. The plasma levels of total PAI-1 and tPA/PAI-I complex were significantly higher in patients with DIC, pre-DIC, and TTP than in those with non-DIC. The plasma levels of thrombin-antithrombin complex (TAT), plasmin-plasmin inhibitor complex (PPIC), D-dimer, thrombomodulin (TM), total PAI-I, and tPA/PAI-I complex were significantly higher in patients with organ failure than in those without organ failure. The plasma levels of total PAI-I and tPA/PAI-I complex were markedly increased in patients with acute leukemia. The plasma levels of total PAI-I, but not those of tPA/PAI-I complex, were significantly increased in patients with sepsis or with solid cancer. In all cases, total PAI-I or tPA/PAI-I complex was not significantly correlated with any hemostatic marker. Measurement of total PAI-I and tPA/PAI-I complex may be useful in the diagnosis of DIC.

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