spreading factor
Noun: 1. An enzyme that breaks down hyaluronic acid: A biological catalyst, specifically hyaluronidase, that degrades hyaluronic acid. This action reduces the fluid's viscosity (thickness) and increases the permeability of connective tissue, facilitating the absorption and spread of fluids. * The doctor injected a spreading factor with the local anesthetic to help it disperse more effectively.
The term "spreading factor" is a functional name for the enzyme hyaluronidase. It is primarily used in medical and biological contexts to describe a substance that increases tissue permeability. * It is often used with trade names (e.g., Hyazyme). * It describes the function (to help other substances spread) rather than just the chemical identity.
- In Medicine:
- Spreading factor is sometimes added to injectable drugs to enhance their local absorption.
- The spreading factor works by temporarily breaking down the barriers between cells.
- In Biology:
- Some bacteria produce a spreading factor as a virulence mechanism to help infections propagate through tissues.
- Researchers studied the effect of the spreading factor on the extracellular matrix.
- "Spreading factor" as a common name: In scientific literature, "spreading factor" is often placed in quotation marks or followed by the formal enzyme name (hyaluronidase) on first use to clarify the terminology.
- The so-called "spreading factor" (hyaluronidase) was first identified in certain venoms.
- Hyaluronidase (n): The formal biochemical name for the enzyme that acts as a spreading factor.
- Diffusion enhancer (n): A more general term for any agent that increases the spread of a substance.
- Permeability-increasing agent (n): A descriptive phrase for substances with a similar function.
- Hyaluronidase
- Diffusing factor (an older, less common synonym)
The term has one core meaning but can be applied in slightly different contexts: 1. Medical/Therapeutic Context: Refers to a purified enzyme used deliberately to aid drug delivery or fluid absorption. 2. Pathological Context: Refers to the same enzyme when produced by pathogens (like bacteria or in venom) to promote invasion and infection spread.
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an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids
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