Factor V and factor VIII, combined deficiency of, 1 - CISMeF
Factor V and factor VIII, combined deficiency of, 1OMIM Phenotype
Preferred Label : Factor V and factor VIII, combined deficiency of, 1;
Symbol : F5F8D1;
CISMeF acronym : FMFD1; F5F8D1; MCFD1;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : FMFD1; Fmfd I; Multiple coagulation factor deficiency I; Familial multiple coagulation factor deficiency I; MCFD1;
Description : Combined deficiency of factor V (612309) and factor VIII (300841) is characterized
by bleeding symptoms similar to those in hemophilia (306700) or parahemophilia (227400),
caused by single deficiency of FV or FVIII, respectively. The most common symptoms
are epistaxis, menorrhagia, and excessive bleeding during or after trauma. Plasma
FV and FVIII antigen and activity levels are in the range of 5 to 30%. Inheritance
of F5F8D is autosomal recessive and distinct from the coinheritance of FV deficiency
and FVIII deficiency (summary by Zhang and Ginsburg, 2004). - Genetic Heterogeneity
of Combined Deficiency of Factor V and Factor VIII Another form of combined deficiency
of factor V and factor VII (F5F8D2; 613625) is caused by mutation in the MCFD2 gene
(607788) on chromosome 2.;