Definition

Noun: 1. An enzyme that breaks down hyaluronic acid: Hyaluronidase is a specific enzyme that catalyzes the hydrolysis (splitting) of hyaluronic acid. Hyaluronic acid is a substance that increases the viscosity (thickness) of bodily fluids and acts as a "cement" in connective tissues. By breaking it down, hyaluronidase lowers viscosity and increases tissue permeability. * Scientific Detail: This action facilitates the absorption and spread of other injected fluids or substances within the tissue.

Usage Examples

• Noun:
  • The doctor administered hyaluronidase to reduce the swelling caused by the filler injection.
  • Hyaluronidase is sometimes used to increase the effectiveness of local anesthetics by helping them spread.
  • Research is being conducted on the role of hyaluronidase in cancer metastasis.

Advanced Usage

• Medical Reversal Agent: In aesthetic and medical contexts, hyaluronidase is famously used as an "antidote" or reversal agent for hyaluronic acid-based dermal fillers to correct overcorrection or complications.
  • Example: A small amount of hyaluronidase can quickly dissolve an undesired lump from a filler treatment.
• Permeability Enhancer: It is used in medicine to enhance the diffusion and absorption of other drugs, such as improving the uptake of injected antibiotics or anesthetics.
  • Example: The anesthetic was mixed with hyaluronidase to ensure it spread adequately through the tissue.

Variants and Related Words

• Spreading factor (n): An informal or descriptive name for hyaluronidase, referring to its primary function of increasing tissue permeability and facilitating the spread of substances.
• Hyaluronate (n): A salt or ester of hyaluronic acid.
• Enzyme (n): A broader category of proteins that act as biological catalysts. Hyaluronidase is a specific type of enzyme.

Synonyms

• Spreading factor: (Descriptive synonym highlighting its function).
• Mucolytic enzyme: (A more general category of enzymes that break down mucus; hyaluronic acid is a component of some mucus).

Notes on Different Meanings

• The core meaning of hyaluronidase is singular and specific: it is an enzyme that degrades hyaluronic acid. Its different "meanings" are actually different applications of this single biochemical function (e.g., as a reversal agent, a permeability enhancer, or a factor in disease processes).
• The trade name Hyazyme mentioned in some references is one specific branded pharmaceutical form of hyaluronidase.

Noun

1. 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