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Características estruturais e funcionais do fator de von Willebrand e interações com o fator VIII em indivíduos com doença coronariana / Structural and functional characteristics of von Willebrand factor and factor VIII and their interaction in patients with coronary artery disease
São Paulo; s.n; 2003. [135] p. ilus, tab, graf.
Thesis in Portuguese | LILACS | ID: lil-415786
RESUMO
Algumas características do fator de von Willebrand (FvW) e fator VIII (FVIII) e a interação entre eles em pacientes com doença arterial coronária (DAC) foram descritas. A concentração plasmática e a atividade biológica do FvW estavam aumentadas nos pacientes; e diminuição dos multímeros de alto peso molecular foram observadas, provavelmente pelo aumento da atividade proteolítica. Os níveis do FVIII e sua atividade não mudaram nos pacientes. A diminuição da capacidade de ligação FvW-FVIII foi observada, conduzindo um aumento do FVIII livre. Portanto, como a concentração do FvW, estrutura e capacidade de ligação com FVIII estão alteradas nos pacientes; podendo ser importantes na patogênese da doença / Some characteristics of von Willebrand factor (vWF) and factor VIII (FVIII) and their interaction in patients with coronary artery disease (CAD) are described. vWF plasma concentration and its biological activity were increased in patients; a decrease of high molecular weight multimers was observed, probably due to an increased proteolytic activity. FVIII plasma levels and activity did not change in patients. A decreased FVIII-vWF binding capacity was observed that led to an increased rate of free factor VIII. Therefore, vWF concentration, structure and binding capacity with FVIII are altered in CAD patients; which could be of importance in the pathogenesis of the disease...
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Index: LILACS (Americas) Main subject: Factor VIII / Von Willebrand Factor / Coronary Disease Limits: Adult / Female / Humans / Male Language: Portuguese Year: 2003 Type: Thesis

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Index: LILACS (Americas) Main subject: Factor VIII / Von Willebrand Factor / Coronary Disease Limits: Adult / Female / Humans / Male Language: Portuguese Year: 2003 Type: Thesis