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  • Title: [Thromboembolic disease and anomalies of fibrinolysis].
    Author: Juhan-Vague I, Aillaud MF, Valadier J, Alessi MC, Serradimigni A.
    Journal: Ann Med Interne (Paris); 1986; 137(6):471-4. PubMed ID: 3101564.
    Abstract:
    Quantitative abnormalities of fibrinolytic system factors (tissue plasminogen activator (t-PA), plasminogen activator inhibitor (PA-inhibitor) are often found in the patients exhibiting an idiopathic thromboembolic pathology. Exploration of fibrinolytic system is performed by taking blood samples prior and after stimulation (after venous occlusion or DDAVP injection). Patients can be "good responders" (that is presenting with an increase of fibrinolytic activity after stimulation) or "bad responders". Among these latter (that is 30 p. 100 of cases), there are two groups: patients exhibiting an increase of PA inhibitor level, this concealing fibrinolytic role of t-PA released by stimulation (20 p. 100 of cases), patients failing to present any t-PA release through endothelial cells stimulation (10 p. 100 of cases). Furthermore, an hypofibrinolysis was demonstrated a long time ago, in certain thrombogenic conditions (post-operative period, obesity, elderly patients). Hypofibrinolysis was recently demonstrated, according to such conditions, as liable to an increase in the PA inhibitor levels. As pathogenic role of hypofibrinolysis is then demonstrated, therapeutic studies reducing the PA inhibitor level or increasing the t-PA rate produced and released by endothelial cells are to be developed.
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