What is R506Q?
Factor V Leiden (FVL) thrombophilia is a blood-clotting disorder caused by an inherited genetic variant, c. 1601G>A; p. Arg534Gln (also known as R506Q) in the coagulation factor V (F5) gene, that increases the risk of abnormal clotting and venous thromboembolism (VTE).
What is the best anticoagulant for Factor V Leiden?
Heparin. This anticoagulant medication works more quickly than warfarin does. It can be administered directly into a vein (intravenously) or under the skin (subcutaneously).
Is Factor V Leiden a hemophilia?
Analysis of the studies evaluating the association between factor V Leiden and milder clinical presentation in severe hemophilia. FVL was found in 2/4 moderately affected hemophilia A patients and in 0/2 severely affected patients. FVL was found in 6/137 (4.4%) patients.
What is Factor V Leiden wild type?
In genetics, the term “wild type” is used for the presence of the typical/normal gene, i.e., the absence of a genetic variant or mutation. Thus, we wonder whether the laboratory FVL test report of the 19-year-old really meant “wild type factor V,” which would indicate that the patient does not have FVL.
Should I take aspirin if I have factor V Leiden?
Even people with two abnormal copies of the gene usually do not receive medication unless they have a history of a blood clot. Based on your age, it may be appropriate for you to be on aspirin, from the standpoint of your heart, regardless of the factor V Leiden.
Is Factor 5 Leiden an autoimmune disease?
This is an autoimmune disorder in which one’s own immune system attacks normal anti-clotting mechanisms.
What is the nomenclature of R506Q?
c.1601G>A; p.Arg534Gln; legacy nomenclature is R506Q (1691G>A). Semidominant; both heterozygotes and homozygotes are at increased risk for VTE.
Is factor V R506Q an independent risk factor for venous thrombosis?
Factor V R506Q mutation-Leiden: an independent risk factor for venous thrombosis but not coronary artery disease J Thromb Thrombolysis. 2001 Apr;11(2):111-6.doi: 10.1023/a:1011268531377.
What is the clinical utility of factor V Leiden (R506Q) testing?
Press RD, Bauer KA, Kujovich JL, Heit JA (November 2002). “Clinical utility of factor V leiden (R506Q) testing for the diagnosis and management of thromboembolic disorders”. Archives of Pathology & Laboratory Medicine. 126 (11): 1304–18. doi: 10.5858/2002-126-1304-CUOFVL. PMID 12421138.
What is the best way to detect codon 506 factor V mutations?
PCR-based direct detection of codon 506 Factor V mutation causing resistance to activated protein C and familial thrombosis. Call the lab at (855)535-1522 for more information. The Knight Cancer Institute at Oregon Health & Science University is a pioneer in the field of precision cancer medicine.