" /> Quebec platelet disorder - CISMeF





Preferred Label : Quebec platelet disorder;

Symbol : QPD;

CISMeF acronym : BDPLT5; QPD;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Bleeding disorder, platelet-type, 5; BDPLT5; Factor V quebec;

Description : Quebec platelet disorder is an autosomal dominant bleeding disorder due to a gain-of-function defect in fibrinolysis. Although affected individuals do not exhibit systemic fibrinolysis, they show delayed onset bleeding after challenge, such as surgery. The hallmark of the disorder is markedly increased PLAU levels within platelets, which causes intraplatelet plasmin generation and secondary degradation of alpha-granule proteins. The disorder shows a favorable therapeutic response to fibrinolytic inhibitors (summary by Diamandis et al., 2009).;

Inheritance : Autosomal dominant;

Molecular basis : Caused by tandem duplication of the urinary plasminogen activator gene (PLAU, 191840.0002);

Prefixed ID : #601709;

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30/07/2025


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