ldl

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Definition

Noun: * Low-Density Lipoprotein: A type of lipoprotein particle found in the blood. Its primary function is to transport cholesterol from the liver to the body's cells and tissues. It is often referred to as "bad" cholesterol because high levels of LDL in the blood are associated with an increased risk of developing atherosclerosis (plaque buildup in arteries) and coronary heart disease.

Usage Examples
  • Noun:
    • A diet high in saturated fats can raise your LDL levels.
    • The doctor said my LDL is too high and recommended more exercise.
    • Not all LDL particles are equally harmful; small, dense LDL is considered more dangerous.
Advanced Usage
  • "LDL cholesterol": This is the common full term, specifying the cholesterol carried the LDL particle. It is often used interchangeably with "LDL" in medical contexts.
    • The test measures your total cholesterol, LDL cholesterol, and HDL cholesterol.
  • "LDL particle number" (LDL-P): An advanced measurement that counts the number of LDL particles in the blood, which may be a more accurate predictor of cardiovascular risk than the standard LDL cholesterol concentration.
  • "Oxidized LDL": A form of LDL that has been chemically modified. It is more readily taken up by artery walls, making it a key contributor to the formation of arterial plaque.
Variants and Related Words
  • HDL (High-Density Lipoprotein): Often called "good" cholesterol, a lipoprotein that carries cholesterol from the body's tissues back to the liver for removal.
  • VLDL (Very Low-Density Lipoprotein): A lipoprotein that carries triglycerides from the liver to tissues; it is eventually converted into LDL.
  • Hypercholesterolemia: The medical term for high cholesterol, often characterized by high LDL levels.
  • Statin: A common class of drugs prescribed to lower LDL cholesterol levels.
Synonyms
  • Bad cholesterol (Common informal term)
  • Low-density lipoprotein (Full formal term)
Related Phrases
  • "High LDL": A phrase used to describe a condition where the concentration of LDL cholesterol in the blood is above the recommended range.
    • He was diagnosed with high LDL and put on medication.
  • "Lower your LDL": A common health recommendation involving dietary changes, exercise, or medication.
    • Eating more soluble fiber can help lower your LDL.
  • "LDL receptor": A protein on the surface of cells that binds to and removes LDL particles from the bloodstream. Genetic defects in this receptor cause very high LDL levels.
Noun
  1. a lipoprotein that transports cholesterol in the blood; composed of moderate amount of protein and a large amount of cholesterol; high levels are thought to be associated with increased risk of coronary heart disease and atherosclerosis

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