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Related Concept Videos

Coagulation01:09

Coagulation

12.1K
The coagulation phase is a critical part of the body's process to prevent blood loss following injury to blood vessels. It involves chemical reactions that form a clot to seal the injured area. The clotting process begins shortly after injury, within 15-20 seconds for severe damage and 1-2 minutes for minor injuries.
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
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Coagulation01:06

Coagulation

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Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
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Complement System01:27

Complement System

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The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
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Extrinsic and Intrinsic Pathways of Hemostasis01:20

Extrinsic and Intrinsic Pathways of Hemostasis

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Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
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Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

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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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Introduction to Hemostasis01:05

Introduction to Hemostasis

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Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
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Related Experiment Video

Updated: Apr 7, 2026

A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
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A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

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Reincarnation of ancient links between coagulation and complement.

E M Conway1

  • 1Centre for Blood Research, Life Sciences Institute, Division of Hematology, Department of Medicine, Faculty of Medicine, University of British Columbia (UBC), Vancouver, BC, Canada.

Journal of Thrombosis and Haemostasis : JTH
|July 8, 2015
PubMed
Summary

Organisms use innate immunity and coagulation to heal wounds. Uncontrolled activation of these systems, like the complement system, drives diseases such as diabetes and cancer, highlighting the need to study their interactions.

Keywords:
endothelial cellsinnate immunityplateletthrombosisthrombotic microangiopathy

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Assessment of the Anticoagulant and Anti-inflammatory Properties of Endothelial Cells Using 3D Cell Culture and Non-anticoagulated Whole Blood
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Assessment of the Anticoagulant and Anti-inflammatory Properties of Endothelial Cells Using 3D Cell Culture and Non-anticoagulated Whole Blood

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Leveraging Turbidity and Thromboelastography for Complementary Clot Characterization
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Related Experiment Videos

Last Updated: Apr 7, 2026

A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
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Assessment of the Anticoagulant and Anti-inflammatory Properties of Endothelial Cells Using 3D Cell Culture and Non-anticoagulated Whole Blood
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Area of Science:

  • Immunology
  • Hematology
  • Pathophysiology

Background:

  • Organisms evolved wound containment using innate immunity and coagulation.
  • Dysregulated innate immunity and coagulation cause disease.
  • The complement system is a key innate immunity component.

Purpose of the Study:

  • To explore the interplay between coagulation and complement pathways.
  • To identify therapeutic targets by understanding their cross-talk.

Main Methods:

  • Review of evolutionary and disease-related literature.
  • Analysis of molecular interactions between proteolytic cascades.

Main Results:

  • Coagulation and complement systems are both activated in numerous diseases.
  • Concurrent overactivation is observed in atherosclerosis, diabetes, cancer, and infections.

Conclusions:

  • Understanding the cross-talk between coagulation and complement is crucial for novel therapeutic strategies.
  • Targeting the interaction of these pathways may offer new treatments for complex diseases.