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  • Title: Factor VIII: von Willebrand factor patterns in the plasma of patients with pre-eclampsia.
    Author: Calvin S, Corrigan J, Weinstein L, Jeter M.
    Journal: Am J Perinatol; 1988 Jan; 5(1):29-32. PubMed ID: 3122779.
    Abstract:
    Elevation of the factor VIII protein to coagulant ratio previously has been reported to predict the severity of pre-eclampsia. Abnormal levels and patterns of factor VIII: von Willebrand factor (VIII/vWF) have been reported in thrombotic thrombocytopenia purpura (TTP). Severe pre-eclampsia shares many features with this syndrome. Nine primigravid patients with pre-eclampsia were evaluated by assays for factor VIII/vWF protein and coagulant activity and were compared to nine normal primigravid (controls). The patients and controls were indistinguishable by factor VIII antigen/coagulant activity ratios. Pre-eclamptic patients also had unremarkable factor VIII patterns on crossed immunoelectrophoresis. The evaluation of factor VIII/vWF multimeric patterns showed four patients with abnormal patterns in the pre-eclamptic patients and three abnormal patterns in the controls. These patterns were not analogous to the factor VIII abnormalities found in TTP.
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