lipase

/'lipeis/

Thân thiện

A scientist observes lipase breaking down fat in a test tube.

Definition

1. Noun:
   • An enzyme that breaks down fats: A lipase is a type of enzyme that catalyzes the hydrolysis (breakdown) of fats (lipids) into their component parts, such as glycerol and fatty acids. This process is essential for digestion and the absorption of dietary fats.

Usage

• Lipase is a crucial digestive enzyme. It is produced primarily by the pancreas and secreted into the small intestine to aid in fat digestion.
• The term is used in biological, medical, and nutritional contexts to discuss digestion, enzyme function, and metabolic disorders.

Examples

• Noun:
  • Pancreatic lipase is essential for the proper digestion of dietary fats.
  • A deficiency in lipase can lead to malabsorption and steatorrhea (fatty stools).
  • The activity of the enzyme lipase increases after a fatty meal.

Advanced Usage

• "Lipase activity": Refers to the rate or efficiency at which lipase performs its catalytic function, often measured in medical tests.
  • The doctor ordered a test to check his pancreatic lipase activity.
• "Lipase inhibitor": A substance that blocks the action of lipase, sometimes used in weight management drugs.
  • Orlistat works as a lipase inhibitor to reduce fat absorption.

Variants and Related Words

• Lipolytic (adj): Relating to or causing the breakdown of fats.
  • The lipolytic process is facilitated by enzymes like lipase.
• Pancreatic lipase (n phrase): The specific form of lipase produced by the pancreas. This is a compound term where "lipase" is the head word.
• Hepatic lipase (n phrase): A form of the enzyme produced by the liver.

Synonyms

• Fat-splitting enzyme: A descriptive synonym emphasizing its function.
• Triglyceride lipase: A more specific term for the enzyme that breaks down triglycerides, the main constituent of body fat.

Related Phrases

• Lipase test: A medical blood test to measure lipase levels, often used to diagnose pancreatitis.
  • Elevated levels in a lipase test can indicate pancreatic inflammation.
• Lipase secretion: The process by which the body releases lipase into the digestive tract.
  • Hormonal signals stimulate lipase secretion from the pancreas.

Notes on Meaning

• The core meaning of "lipase" is consistently that of a fat-digesting enzyme. It does not have idiomatic meanings. Its usage is technical and confined to scientific and medical fields.

Học thuật

Noun

1. an enzyme secreted in the digestive tract that catalyzes the breakdown of fats into individual fatty acids that can be absorbed into the bloodstream