plasmin
Definition
- Noun:
- An enzyme that dissolves the fibrin of blood clots: Plasmin is a proteolytic enzyme in blood plasma that breaks down fibrin, the main protein component of blood clots, leading to clot dissolution (fibrinolysis).
Usage Examples
- Noun:
- The activation of plasmin is a crucial step in the natural breakdown of clots.
- Researchers are studying how plasmin activity can be regulated to treat thrombosis.
Advanced Usage
- "plasmin activation": The process by which the inactive precursor, plasminogen, is converted into the active enzyme plasmin.
- Tissue plasminogen activator (tPA) is a drug that promotes plasmin activation to treat strokes.
- "plasmin inhibitor": A substance, such as alpha-2-antiplasmin, that naturally regulates and inhibits the activity of plasmin to prevent excessive bleeding.
- A deficiency in plasmin inhibitor can lead to a bleeding disorder.
Variants and Related Words
- Plasminogen (n): The inactive precursor or zymogen form of plasmin, which circulates in the blood.
- Plasminogen must be cleaved to become active plasmin.
- Fibrinolysis (n): The physiological process of breaking down blood clots, in which plasmin is the key enzyme.
- Fibrinolysis is the body's way of removing unwanted clots.
Synonyms
- Fibrinolysin: An older, less common term for plasmin, directly referencing its function in fibrinolysis.
Related Phrases and Compounds
- Plasmin system: Refers to the complex of enzymes, inhibitors, and activators involved in the generation and regulation of plasmin activity.
- The plasmin system is essential for maintaining vascular patency.
- Plasmin time: A laboratory test related to measuring fibrinolysis, though less common than tests like "clotting time" or "fibrinogen level."
Noun
-
an enzyme that dissolves the fibrin of blood clots
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