BACKGROUND The relation between Factor VII (FVII) and tissue thromboplastin is not completely clarified, yet. Three FVII abnormalities, FVII Padua (Arg304Gln), FVII Nagoya (Arg304Trp) and FVII Shinjo or Tondabayshi (Arg79Gln) show different FVII activity according to the tissue Tissue Factor (TF) used in the assay system (rabbit brain, human placenta or human recombinant and ox brain). OBJECT...

The tests for the coagulation time of the blood which are in general use have contributed little to the understanding of abnormal tendencies to thrombosis, as they are extremely insensitive to all but gross changes in the coagulation mechanism. A variety of techniques have been evolved to meet this defect. One group of these methods depends on the addition of an inhibitor, e.g., heparin, to the...

Ischemic heart disease is caused by a combination of and interaction between a number of genetic and environmental factors. In a study of a group of healthy men from the United Kingdom, such an interaction was identified between the levels of plasma triglycerides and genetic variation determining plasma levels of factor VII, a clotting factor that is associated with risk of ischemic heart disea...

The in vitro production of factor VII-like material and of tissue factor activity by murine thioglycollate exudate macrophages was measured by amidolytic assays. Tissue factor activity was inducible by endotoxin, and its induction was inhibited by 1 microgram/mL of actinomycin D, 10 micrograms/mL of cycloheximide, and 0.2 micrograms/mL of tunicamycin. Soluble factor VII-like material was secret...

Factor VII has been purified up to 330,000-fold from bovine plasma by adsorption on, and elution from, barium sulfate, anion exchange chromatography, gel filtration, and affinity chromatography on benzamidine coupled to Sepharose. The purified material is inhibited by diisopropylphosphorofluoridate both in its native state and after the formation of a complex with tissue factor in the presence ...

We analyzed the mutations in patients from 10 Polish kindreds with a bleeding diathesis due to factor VII deficiency. Patients from eight families had plasma levels of factor VII coagulant activity (VII:C) and factor VII antigen (VII:Ag) that were less than 4% of normal. The coding sequence of the factor VII gene was amplified from genomic DNA by polymerase chain reaction (PCR). Sequencing demo...

Factor VII has been purified up to 330,000-fold from bovine plasma by adsorption on, and elution from, barium sulfate, anion exchange chromatography, gel filtration, and affinity chromatography on benzamidine coupled to Sepharose. The purified material is inhibited by diisopropylphosphorofluoridate both in its native state and after the formation of a complex with tissue factor in the presence ...