In type 1, you are missing some von Willebrand factor.

Genetic testing that shows if you have a defect in your von Willebrand factor.

In type 2, you have the von Willebrand factor, but it doesn't work as it should.

Cryoprecipitate should be used when fibrinogen or von Willebrand factor is needed.

This protein is called the von Willebrand factor.

In type 3, you don't have the von Willebrand factor or you have a very small amount.

Von Willebrand factor is involved in blood clotting.

The von Willebrand factor is a large multimeric glycoprotein found in blood plasma.

Since levels of von Willebrand factor can vary from time to time, laboratory tests may have to be repeated.

This can cause mild to moderate bleeding episodes, depending on how much von Willebrand factor is missing.

It is caused by a lack of von Willebrand factor which plays a role in the clotting process of blood.

Von Willebrand factor is a marker of platelet and endothelial activation.

Less von Willebrand factor may mean that fewer clots that could cause a heart attack or stroke are formed.

Higher levels of Von Willebrand factor are more common amongst people who have had ischemic stroke for the first time.

This gene encodes a member of von Willebrand factor A domain containing protein family.

Examples of these thrombogenic substances are tissue factor, collagen, and von Willebrand factor.

The production of von Willebrand factor vWF is decreased.

Von Willebrand factor antigen assay is normal.

There is also a potential heparan sulphate binding site in the von Willebrand factor A domain.

In the blood, it mainly circulates in a stable noncovalent complex with von Willebrand factor.

It cleaves fibrin, fibronectin, thrombospondin, laminin, and von Willebrand factor.

Tests and Treatment A blood test can determine the presence, quantity and normality of von Willebrand factor.

The product of this gene contains several domains similar to von Willebrand Factor type A domains.

The von Willebrand factor is undetectable in the vWF antigen assay.

It also stimulates release of von Willebrand factor from endothelial cells by acting on the V2 receptor.