Background & Aims: Preeclampsia is one of the complications of pregnancy and a major cause of maternal mortality. Since, hypercoagulation is one of the risk factors, defined polymorphisms of V and II coagulation factors (G1691A and G20210A) may increase the risk of the disease. Methods: This investigation was performed on blood samp...

1. It has been shown that factor V accelerates the rate of conversion of prothrombin into thrombin by activated factor X, and that this activity does not depend on the presence of phospholipid. 2. Although the mechanism by which factor V increases the rate of reaction is not clear, it seems unlikely that it is converted into an enzyme. 3. The rate of conversion of prothrombin by purified activa...

Adler, Howard I. (Oak Ridge National Laboratory, Oak Ridge, Tenn.), William D. Fisher, Alice A. Hardigree, and George E. Stapleton. Repair of radiation-induced damage to the cell division mechanism of Escherichia coli. J. Bacteriol. 91:737-742. 1966.-Microscopic observations of irradiated populations of filamentous Escherichia coli cells indicated that filaments can be induced to divide by a su...

background: recurrent pregnancy loss (rpl) caused by various genetic and non-genetic factors. after chromosome abnormality, thrombophilia is one of the most important genetic factors that could cause rpl. factor v leiden and factor ii g20210a mutation were the most common mutations cause thrombophilia in the world. objective: the purpose of this study was to determine the frequency of factor v ...

A new case of combined factor V-VIII deficiency is reported with in vitro studies of factors V and VIII activation by thrombin. The normal activation of factors V and VIII demonstrated in the patient's plasma and the equivalent levels of factor VIII coagulant activity and coagulant antigen support the hypothesis that a quantitative rather than qualitative defect in factors V and VIII is present...

The aim of this study was to identify hereditary and acquired risk-factors as they are related to the occurrence of stroke in children. We identified 21 children with stroke. A search of the Factor V Leiden mutation, the Factor II G20210A variant, and the thermolabile variant of methylenetetrahydrofolate reductase was performed in patients and in a control group (n = 115). We identified risk fa...