Total Cholesterol, NON HDL Cholesterol, HDL Cholesterol, LDL Cholesterol, VLDL Cholesterol, Triglyceride,Total Cholesterol & HDL Cholesterol Ratio, Cholestrol & LDL Cholesterol Ratio, LDL Cholesterol & HDL Cholesterol Ratio
(APO) APOLIPOPROTEINS A1
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What is this Test About?
Apolipoprotein A1 (ApoA1) is the primary protein associated with high-density lipoprotein (HDL) particles, and plays a central role in reverse cholesterol transport. HDL cholesterol (HDL-C) and ApoA1 concentrations are inversely related to the risk for Coronary artery disease (CAD). There are a variable number (1-5) of ApoA1 proteins per HDL particle. Therefore, ApoA1 is not a 1:1 surrogate marker for HDL particles. Similarly, the number of ApoA1 proteins and the amount of cholesterol contained in HDL particles is highly variable. Individuals with Tangier disease have < 1% of normal Apo A1.
