fibrinogen
Noun: A soluble plasma glycoprotein that is synthesized in the liver and is essential for blood clotting. It is converted by the enzyme thrombin into insoluble fibrin, which forms the meshwork of a blood clot.
Fibrinogen is used as a mass noun to refer to this specific blood protein. It is a technical term primarily used in medical, biological, and clinical contexts. - Measurement of fibrinogen levels is a common part of a coagulation blood test. - Liver disease can impair the production of fibrinogen.
- Medical Context:
- A deficiency in fibrinogen can lead to serious bleeding disorders.
- The test revealed elevated fibrinogen, which is often a sign of acute inflammation.
- Biological Process:
- During coagulation, fibrinogen is cleaved to form fibrin monomers.
- Fibrinogen binds to activated platelets at the site of a wound.
- "Fibrinogen turnover": Refers to the rate at which fibrinogen is synthesized and degraded in the body.
- "Fibrinogen degradation products (FDPs)": Fragments produced when fibrinogen or fibrin is broken down by the enzyme plasmin; their measurement is used to diagnose conditions like disseminated intravascular coagulation (DIC).
- Fibrin (noun): The insoluble protein formed from fibrinogen during clotting; it polymerizes to form the clot's structural matrix.
- Hypofibrinogenemia (noun): An abnormally low level of fibrinogen in the blood.
- Dysfibrinogenemia (noun): A condition characterized by the production of abnormal, dysfunctional fibrinogen.
- Factor I: The standardized numerical designation for fibrinogen in the coagulation cascade.
The word fibrinogen has a single, specific meaning in biochemistry and medicine. It does not have common idiomatic or figurative uses. It refers exclusively to the precursor protein of fibrin in the blood clotting process.
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a protein present in blood plasma; converts to fibrin when blood clots
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