There is now convincing evidence that a high level of coagulation factor VIII is an important risk factor for venous thromboembolism. A factor VIII plasma concentration above 1500 IU/l is associated with an almost 5-fold risk for a first episode of venous thrombosis. In thrombosis patients high factor VIII has been shown to persist over time and is not related to an acute phase reaction. High f...

Acquired hemophilia A is a coagulation disorder caused by autoantibodies against blood coagulation factor VIII. The first sign of this disease is often massive bleeding, which can affect patients after routine procedures. The parameter which indicates the presence of this condition is isolated prolonged activated partial thromboplastin time (APTT). The present article describes a case of a 32-y...

The gene for the coagulation protein factor VIII contains several common restriction fragment length polymorphisms which can be used to analyse the pattern of inheritance of factor VIII alleles within families. This can be exploited to identify carriers of haemophilia, an X-linked inherited disorder characterised by deficiency of factor VIII. In this study the polymerase chain reaction was used...

The clinical course and coagulation profile of a pregnant patient with variant von Willebrand's disease were followed from the second trimester through puerperium. The clinical course was characterized by a normal delivery and absence of abnormal bleeding or need for replacement therapy. The coagulation profile demonstrated an increase in factor VIII procoagulant activity, factor-VIII-related a...

a group of iranian patients suffering from factor viii deficiency (hemophilia a) and treated with contaminated coagulation factor (imported), became seropositive as determined by elisa method. sixty of these individuals, which were available, were studied for abo distribution. the b blood group in anti hiv pos. individuals (13.33%) shows a significant decrease in comparison with the total (1504...

BACKGROUND Single base-pair substitution mutations in the gene for coagulation factor VIII, procoagulant component (hemophilia A) (F8) account for approximately 50% of severe cases of hemophilia A (HA), and almost all moderate or mild cases. Because F8 is a large gene, mutation screening using denaturing HPLC or DNA sequencing is time-consuming and expensive. METHODS We evaluated high-resolut...

background bone marrow transplantation (bmt)is nowadays used in various hematological disorders including leukemias. hemophilia a & b are sex linked bleeding disorders in which there are various genetic abnormalities in factor viii & ix genes. among various hematological disorders, bleeding disorders mainly hemophilia in now widely treated using plasma derived and recombinant factor viii & ix c...

Fulminant hepatic failure (FHF) in humans produces a bleeding diathesis due in large part to a reduction in the biosynthesis of liver-derived coagulation factors. Remarkably, factor VIII procoagulant activity is elevated in most of these patients despite widespread liver cell death. FHF can be modeled in mice by administration of azoxymethane, the active ingredient found in cycad palm nuts. We ...