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|Type:||Artigo de periódico|
|Title:||Factor V Leiden is not common in children with portal vein thrombosis|
|Abstract:||Portal vein thrombosis (PVT) is a rare condition affecting both children and adults, and occurs in association with a wide variety of clinical situations. On the other hand, the development of PVT in patients under these situations indicates that other contributing factors could be envolved. Recently a missense mutation in the factor V gene (1691G-->A), known as factor V Leiden, has been identified and results in abnormal factor V product, resistant to proteolytic inactivation by activated protein C and thus predisposes to thrombosis. This study was carried out to verify if children with PVT have an increase in frequency of factor V Leiden. Allele-specific restriction analysis and single strand conformational polymorphism (SSCP) were used to test for factor V Leiden in 20 children with PVT and 64 normal children. None of the PVT children were heterozygous or homozygous for the factor V Leiden, and one control child was heterozygous. This study demonstrates that factor V Leiden is not common in children with PVT, and is not a prerequisite for this thrombotic event.|
|Editor:||F K Schattauer Verlag Gmbh|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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