vldl
Học thuậtThân thiện
Definition
Noun: 1. Very Low-Density Lipoprotein: A type of lipoprotein, a microscopic particle that transports lipids (fats) like triglycerides and cholesterol through the bloodstream. VLDL is produced by the liver and carries triglycerides from the liver to tissues throughout the body for energy use or storage.
Usage
VLDL is a technical term used primarily in medical, biological, and nutritional contexts. - It is often discussed in relation to cholesterol levels, heart health, and metabolic processes. - It is typically used as a countable noun (e.g., VLDLs) when referring to the particles themselves.
Examples
- Medical Context:
- A blood test revealed high levels of VLDL, indicating a potential risk for cardiovascular disease.
- The liver synthesizes VLDL to transport endogenous triglycerides.
- Scientific Explanation:
- As VLDL particles release their triglycerides, they become smaller and denser, eventually transforming into LDL (low-density lipoprotein).
Advanced Usage
- VLDL Cholesterol: Although VLDL primarily carries triglycerides, it also contains cholesterol. In standard lipid panels, "VLDL cholesterol" is often estimated as a fraction of triglyceride levels.
- The doctor calculated his VLDL cholesterol to assess his overall lipid profile.
Variants and Related Words
- Lipoprotein (n): The broader category of fat-and-protein particles that include VLDL, LDL (low-density lipoprotein), and HDL (high-density lipoprotein).
- LDL (n): Low-density lipoprotein, often called "bad" cholesterol, formed from the remnants of VLDL.
- HDL (n): High-density lipoprotein, often called "good" cholesterol.
- Triglycerides (n): The primary type of fat carried by VLDL particles.
Synonyms
- Very Low-Density Lipoprotein (full form)
- VLDL particle (specific term)
Related Phrases
- VLDL remnant: The intermediate particle that remains after VLDL has delivered most of its triglycerides, which is then converted into LDL.
- The VLDL remnant is taken up by the liver or converted into LDL in the bloodstream.
Noun
- large lipoproteins rich in triglycerides; VLDLs circulate through the blood giving up their triglycerides to fat and muscle tissue until the VLDL remnants are modified and converted into LDL