INTRODUCTION Factor VII deficiency is a rare cause of haemorrhagic syndrome. PRESENTATION OF CASE The authors describe a case of a 48 years old patient with congenital factor VII deficiency suffering abdominal discomfort diagnosed as gallstone, that successfully underwent laparoscopic cholecystectomy with continuous infusion of Human Prothrombin Complex(PPSB) around the procedure. CONCLUSIO...

We have studied factor VII activation by measuring the ratio of factor VII clotting to coupled amidolytic activity (VIIc/VIIam) and cleavage of 125I-factor VII. In purified systems, a low concentration of Xa or a higher concentration of IXa rapidly activated 125I-factor VII, yielding a VIIc/VIIam ratio of 25 and similar gel profiles of heavy and light chain peaks of VIIa. On further incubation,...

Commercial porcine factor VIII concentrate (Hyate:C) is effective in treatment of patients with hemophilia A who have circulating antibodies to factor VIII. The molecular forms of factor VIII in the concentrate were identified and evaluated in light of the known properties of porcine and human factor VIII. The factor VIII in the concentrate was isolated by tandem chromatography on gelatin-Sepha...

1. Perry DJ. Factor VII deficiency. Br J Haematol 2002;118: 689-700. 2. Cooper DN, Millar DS, Wacey A, Banner DW, Tuddenham EGD. Inherited factor VII deficiency: molecular genetics and pathophysiology. Thromb Haemost 1997;78:151-60. 3. Pinotti M, Etro D, Bindini D, Papa ML, Rodorigo G, Rocino A, et al. Residual factor VII activity and different hemorrhagic phenotypes in CRM(+) factor VII defici...

Recent investigations have suggested that the activation of factor IX by factor VII/tissue factor may be an important alternative route to the generation of factor Xa. Accordingly, we have compared the tissue factor-dependent activation of tritium-labeled factor IX and factor X in a human plasma system and have studied the role of proteases known to stimulate factor VII activity. Plasma was def...

Elevated factor VII levels have been associated with increased cardiovascular risk in some studies. The arginine/glutamine (Arg/Gln) polymorphism of the factor VII gene has been previously shown to modify factor VII levels. However, the presence of a gene/environment interaction on factor VII levels or a link with cardiovascular disease (CVD) remains uncertain. We studied subjects from the Fram...

Tissue factor, a known initiator of blood coagulation, was found to be active in Triton X-100. A system consisting of tissue factor, factor VIIa, calcium ions, and coagulation factor X generated activated factor X at an appreciable rate. Based on this observation, we coupled human and bovine factor VII to a solid support. Each column bound tissue factor, solubilized in Triton X-100, in a specie...

Highly purified single-chain factor VII was isolated from plasma and used to generate monospecific antibodies. A double-antibody equilibrium radioimmunoassay was constructed. The assay was tested for and met all the criteria required for a specific, sensitive, and accurate determination of factor VII in plasma. The range of sensitivity of the assay was between 1 and 500 ng factor VII/ml, and th...