The amount of apoA-I protein in each of the five HDL subclasses, providing information to accurately identify patients at increased cardiovascular disease risk.
5 Biomarkers Included
α-1 HDL
Very large, mature HDL particles rich in cholesterol, considered the most protective for cardiovascular health.
α-2 HDL
Large HDL particles rich in cholesterol that are cardioprotective but slightly less so than the larger α-1 HDL.
α-3 HDL
Medium-sized HDL particle with intermediate roles in cholesterol transport but unlike the most protective large α-1 HDL, it is less effective at removing cholesterol from arteries and is considered a risk factor.
α-4 HDL
Small HDL particles that have reduced cholesterol-carrying capacity and are less protective.
preβ-1 HDL
Very small, nascent HDL particles that initiate reverse cholesterol transport; high levels may indicate impaired HDL maturation.
