TY - JOUR ID - 39941 TI - Combined Factor V and VIII Deficiency JO - Iranian Journal of Medical Sciences JA - IJMS LA - en SN - 0253-0716 AU - Mansouritorghabeh, Hassan AD - Y1 - 2007 PY - 2007 VL - 32 IS - 3 SP - 131 EP - 136 KW - Factor V deficiency KW - factor VIII deficiency KW - hemorrhagic disorder DO - N2 - This review summarizes current data on the pathomechanisms and new genetic findings of combined factor V and VIII deficiency (CF5F8D). Congenital haemorrhagic disorders characterized by deficiency of two clotting factors comprise an interesting group. Among dual coagulation disorders, CF5F8D is the most common type. For the first time combined factor V and VIII deficiency (F5F8D) was reported by Oeri et al in 1954. That is distinct from the coinheritance of both FV deficiency (parahaemophilia) and FVIII deficiency (haemophilia A) that has been reported in four families. Individuals who present with this phenotype have between 5 and 30% of normal plasma levels of FV and FVIII antigen and activity, whereas the level of other plasma proteins are not altered. Total numbers of affected individuals are less than 150 cases in all over the world. At first it was assumed that deficiency of protein C inhibitor was a responsible cause, but further investigations revealed that it was due to mutations called ERGIC-53 and LMAN-1. UR - https://ijms.sums.ac.ir/article_39941.html L1 - https://ijms.sums.ac.ir/article_39941_6d147f03f406387c3c545075802e2912.pdf ER -