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Related Concept Videos

Disorders of Hemostasis01:24

Disorders of Hemostasis

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Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
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Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

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Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
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Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
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Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
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Related Experiment Video

Updated: Oct 8, 2025

Constitutive and Inducible Systems for Genetic In Vivo Modification of Mouse Hepatocytes Using Hydrodynamic Tail Vein Injection
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Hemostatic phenotypes and genetic disorders.

Fabienne Ver Donck1, Veerle Labarque1,2, Kathleen Freson1

  • 1Department of Cardiovascular Sciences Center for Molecular and Vascular Biology University of Leuven Leuven Belgium.

Research and Practice in Thrombosis and Haemostasis
|December 29, 2021
PubMed
Summary
This summary is machine-generated.

Next-generation sequencing (NGS) advances genetic diagnosis and discovery for bleeding and thrombosis disorders. Multigene panel tests and RNA sequencing aid in identifying novel genes and understanding disease mechanisms.

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Area of Science:

  • Genetics and genomics
  • Hematology
  • Molecular diagnostics

Background:

  • Inherited bleeding and thrombosis disorders require accurate molecular diagnosis.
  • Multigene panel tests are crucial for detecting genetic variants in known disease-causing genes.
  • Next-generation sequencing (NGS) has revolutionized gene discovery in hemostasis.

Purpose of the Study:

  • To review the role of NGS technologies in the diagnosis and research of inherited hemostatic disorders.
  • To discuss the advantages and disadvantages of multigene panel tests.
  • To highlight recent gene discoveries and the utility of RNA sequencing for mechanistic studies.

Main Methods:

  • Analysis of multigene panel tests for molecular diagnosis of hemostatic phenotypes.
  • Application of NGS for the discovery of novel genes implicated in bleeding and thrombosis.
  • Utilizing RNA sequencing to investigate disease mechanisms of newly identified genes.

Main Results:

  • Multigene panel tests enable detection of variants in 99 curated genes for bleeding, platelet, and thrombotic disorders.
  • NGS technologies have led to the identification of 32 novel genes involved in inherited hemostatic phenotypes.
  • RNA sequencing provides insights into the functional consequences of novel genetic variants.

Conclusions:

  • NGS technologies are indispensable tools for both diagnostics and gene discovery in inherited hemostatic disorders.
  • Future research should focus on unexplained cases, exploring noncoding regions, and developing rapid validation models.
  • Continued advancements in sequencing technologies promise to further unravel the genetic basis of bleeding and thrombosis.