Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Anticoagulant Drugs: Low-Molecular-Weight Heparins

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...

Coagulation

Coagulation

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...

Coagulation

Coagulation

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...

Extrinsic and Intrinsic Pathways of Hemostasis

Extrinsic and Intrinsic Pathways of Hemostasis

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 forms a...

Introduction to Hemostasis

Introduction to Hemostasis

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, and...

Clot Retraction and Fibrinolysis

Clot Retraction and Fibrinolysis

After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Nociceptive-Evoked Potentials Are Sensitive to Behaviorally Relevant Stimulus Displacements in Egocentric Coordinates.

eNeuro·2016

Same author

Flexibility and variability of TIMP binding: X-ray structure of the complex between collagenase-3/MMP-13 and TIMP-2.

Journal of molecular biology·2007

Same author

The structure of thrombin, a chameleon-like proteinase.

Journal of thrombosis and haemostasis : JTH·2005

Same author

Crystal structure of the E. coli dipeptidyl carboxypeptidase Dcp: further indication of a ligand-dependent hinge movement mechanism.

Journal of molecular biology·2005

Same author

The staphylocoagulase family of zymogen activator and adhesion proteins.

Cellular and molecular life sciences : CMLS·2004

Same author

Crystal structure of the catalytic domain of MMP-16/MT3-MMP: characterization of MT-MMP specific features.

Journal of molecular biology·2004

Search research articles

Related Experiment Video

Updated: Jun 5, 2026

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

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

Published on: February 14, 2017

Structure and specificity in coagulation and its inhibition.

M T Stubbs¹, W Bode

¹Milton T. Stubbs and Wolfram Bode are at the Max-Plauck Institut für Biochemie, München, Germany.

Trends in Cardiovascular Medicine

|January 15, 2011

Summary

The coagulation cascade, crucial for hemostasis, involves intricate procoagulatory and anticoagulatory interactions. Recent structural data illuminates how key proteins like thrombin, factor Xa, and antithrombin interact to maintain this balance.

More Related Videos

Ferric Chloride-induced Murine Thrombosis Models

Ferric Chloride-induced Murine Thrombosis Models

Published on: September 5, 2016

The Nijmegen Hemostasis Assay: Simultaneous Fluorogenic Measurement of Thrombin and Plasmin Generation in a Single Well

The Nijmegen Hemostasis Assay: Simultaneous Fluorogenic Measurement of Thrombin and Plasmin Generation in a Single Well

Published on: February 27, 2026

Related Experiment Videos

Last Updated: Jun 5, 2026

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

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

Published on: February 14, 2017

Ferric Chloride-induced Murine Thrombosis Models

Ferric Chloride-induced Murine Thrombosis Models

Published on: September 5, 2016

The Nijmegen Hemostasis Assay: Simultaneous Fluorogenic Measurement of Thrombin and Plasmin Generation in a Single Well

The Nijmegen Hemostasis Assay: Simultaneous Fluorogenic Measurement of Thrombin and Plasmin Generation in a Single Well

Published on: February 27, 2026

Area of Science:

Biochemistry
Molecular Biology
Physiology

Background:

The coagulation cascade is a complex system regulating blood clotting.
Maintaining a balance between procoagulatory and anticoagulatory processes is vital for hemostasis.
Understanding these interactions is key to addressing bleeding and clotting disorders.

Purpose of the Study:

To elucidate the structural basis of key protein interactions in the coagulation cascade.
To provide insights into the maintenance of hemostasis at a molecular level.

Main Methods:

Analysis of recent structural data for thrombin, factor Xa, and antithrombin.
Examination of protein-protein interactions within the coagulation system.

Main Results:

Detailed structural insights into the interactions between thrombin, factor Xa, and antithrombin.
Revealed how these interactions contribute to the overall balance of hemostasis.

Conclusions:

Structural data provides a deeper understanding of coagulation mechanisms.
These findings are crucial for comprehending hemostasis and related pathologies.