remnant cholesterol
Cholesterol content of triglyceride-rich lipoproteins after lipolysis, increasingly recognized as atherogenic.
Full Definition
Remnant cholesterol refers to the cholesterol content of partially metabolized triglyceride-rich lipoproteins, including very low-density lipoprotein (VLDL) and intermediate-density lipoprotein (IDL) remnants, as well as chylomicron remnants. These particles are formed after lipoprotein lipase removes triglycerides from their parent lipoproteins, leaving cholesterol-enriched remnants that can penetrate arterial walls and contribute to atherosclerosis. Remnant cholesterol is calculated as total cholesterol minus LDL cholesterol minus HDL cholesterol, representing a simple surrogate for these atherogenic particles. Growing evidence suggests remnant cholesterol is an independent cardiovascular risk factor, particularly in patients with diabetes and metabolic syndrome. The parameter is gaining clinical attention as a potential therapeutic target beyond traditional LDL cholesterol lowering.
Usage
Usage note: Calculation method should be specified; emerging biomarker with growing clinical relevance
In Context
- "Elevated remnant cholesterol independently predicted cardiovascular events in the cohort." — Epidemiological study
- "Remnant cholesterol levels decreased significantly with fenofibrate treatment." — Clinical trial report