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Related Experiment Video

Updated: Jun 5, 2026

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay

Published on: September 9, 2012

Inherited and acquired factor V deficiency.

Giuseppe Lippi¹, Emmanuel J Favaloro, Martina Montagnana

¹U.O. di Diagnostica Ematochimica, Dipartimento di Patologia e Medicina di Laboratorio, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy. glippi@ao.pr.it

Blood Coagulation & Fibrinolysis : an International Journal in Haemostasis and Thrombosis

|January 20, 2011

Summary

Clotting factor V deficiency, a rare inherited bleeding disorder, impacts hemostasis. This review covers physiopathology, diagnostics, and management of inherited and acquired factor V issues.

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Last Updated: Jun 5, 2026

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay

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Area of Science:

Hematology
Molecular Biology
Genetics

Background:

Factor V is crucial for hemostasis, acting in both procoagulant and anticoagulant pathways.
Isolated factor V deficiency (F5 gene mutations) causes bleeding disorders.
Combined factor V and FVIII deficiency (F5F8D) results from LMAN1/MCFD2 gene mutations affecting protein processing.

Purpose of the Study:

To review the physiopathology, diagnostics, and clinical management of factor V deficiencies.
To differentiate inherited factor V deficiency from combined factor V and FVIII deficiency.
To discuss acquired factor V inhibitors and their clinical presentation.

Main Methods:

Literature review of factor V physiopathology.
Analysis of genetic mutations associated with factor V deficiency.
Review of diagnostic approaches and clinical management strategies.

Main Results:

Factor V deficiency presents with variable bleeding symptoms, from bruising to severe bleeds.
F5F8D typically has a milder bleeding phenotype than expected from combined deficiencies.
Acquired factor V inhibitors can cause heterogeneous clinical phenotypes.

Conclusions:

Understanding factor V's role is key to managing bleeding disorders.
Genetic and acquired forms of factor V deficiency require distinct diagnostic and management approaches.
Further research into LMAN1/MCFD2 function could illuminate F5F8D pathogenesis.