Molecular Characterisation of 11 novel mutations in patients with heterozygous and homozygous FV deficiency.
Résumé
Introduction: Coagulation factor V (FV) has an important role in the blood coagulation cascade, in both the pro- and anticoagulant pathways. FV deficiency is a rare bleeding disorder with variable phenotypic expression. Aim: We report a cohort of 10 patients with mild- severe FV deficiency in whom a total of 11 novel mutations were identified. Results: Three patients were compound heterozygous for two mutations while each of the remaining patients had a single heterozygous variant. FV levels did not correlate with either the type of mutation identified or the bleeding diathesis exhibited by the patients. Conclusion: Although considered to have an autosomal recessive mode of inheritance, patients with a single missense mutation may present with a significant bleeding history. The addition of a significant number of previously unidentified mutations to the public domain will contribute to the knowledge and understanding of the molecular pathology of this rare disorder.
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