Blood lipid profile (LP)

A blood lipid profile is a diagnostic panel of blood tests used to measure the concentrations of specific lipid molecules and lipoproteins in the circulation. It typically encompasses four primary measurements: total cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglycerides [StatPearls, NBK482250]. While the profile itself is a clinical phenotype rather than a single molecular target, it serves as the primary endpoint for evaluating metabolic health and cardiovascular risk. Abnormalities in these levels, particularly elevated LDL-C and triglycerides, are central to the pathogenesis of atherosclerosis and coronary heart disease [NIH, NHLBI]. Numerous therapeutic classes, including statins, PCSK9 inhibitors, and fibrates, are designed to modify these lipid fractions by interacting with specific enzymes and receptors involved in lipid metabolism and transport [American Heart Association].

Other names

Lipid panelLipid testCholesterol profileLipidogramFasting lipid profile

Pharmacological agents modulate the blood lipid profile by targeting specific proteins: statins inhibit HMG-CoA reductase to reduce cholesterol synthesis; PCSK9 inhibitors prevent LDL receptor degradation to increase LDL clearance; fibrates activate PPAR-alpha to lower triglycerides; and ezetimibe inhibits NPC1L1 to block intestinal cholesterol absorption [StatPearls, NBK482250; Mayo Clinic].