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  • Title: A study of hemostasis in ischemic cerebrovascular disease: IV. A five year follow-up of some blood coagulation parameters also including fibrinopeptide A, factor XII and prekallikrein.
    Author: Mettinger KL.
    Journal: Thromb Res; 1982 Jul 15; 27(2):155-60. PubMed ID: 6814002.
    Abstract:
    Twenty-seven young adults (mean age 46) with ischemic cerebrovascular disease (ICD) were reinvestigated about 5 years after discharge and compared to 67 healthy controls. Factor VIII related antigen was again found significantly (p less than 0.005 and p less than 0.001) increased in male as well as female patients and a significant (r = 0.66, p less than 0.001) correlation was found with earlier data. Factor VIII biological activity was again found increased, significantly (p less than 0.001) in males. In contrast to earlier results antithrombin antigen and activity were significantly (p less than 0.001) decreased in males. This finding and decreased levels of factor XII in female patients (p less than 0.001) and of prekallikrein in male patients (p less than 0.01) could reflect disturbed regulatory functions or possibly constitutional differences. As in most subjects no increase of fibrinopeptide A was found, there was no sign of continuous activation of the whole coagulation sequence. Since hemostatic abnormalities were unrelated to acute phase reacting proteins they were obviously of a different nature than unspecific response to tissue damage and acute stress. High levels of factor VIII and low levels of antithrombin imply that the coagulation system could be more easily activated when other factors coincide, e.g. intimal lesions in carotide arteries.
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