HDL Function Panel

AALP ApoA1 measures the main protein on HDL—often called the “good cholesterol.” It’s part of the HDL Function Panel, which looks at how well your HDL works, not just how much HDL cholesterol you have. This test uses an advanced lab method and reports results in nmol/L (not mg/dL like the standard ApoA1 test). Why it matters HDL helps protect your heart by picking up extra cholesterol from artery walls and carrying it to the liver for removal (this is called cholesterol efflux). ApoA1 is the “workhorse” protein that helps HDL do that job. Higher AALP ApoA1 generally suggests HDL is working better. Lower AALP ApoA1 can mean HDL isn’t removing cholesterol as effectively—even if your regular HDL cholesterol number looks “normal.” Typical reference ranges (nmol/L) Men: 181–359 nmol/L Women: 215–421 nmol/L These values use a different method and cannot be compared to the standard ApoA1 test reported in mg/dL. How the lab measures it The lab enriches HDL particles that carry ApoA1 and then measures the proteins on them with a precise mass-spectrometry method. The results contribute to models that estimate HDL function and a heart artery disease risk score (HDLfx pCAD Score). How to read your result If your AALP ApoA1 is higher (within or above the reference range): This often points to better HDL function and lower heart disease risk, especially when other markers agree (healthy LDL/ApoB, lower triglycerides, good blood sugar, and a favorable HDL Function Panel score). If your AALP ApoA1 is lower: This may reflect less effective HDL function. It’s commonly seen with insulin resistance, extra weight around the middle, higher triglycerides, or ongoing inflammation. Your clinician will look at AALP ApoA1 alongside your LDL/ApoB, triglycerides, blood pressure, blood sugar, and the rest of the HDL Function Panel. What can influence AALP ApoA1 Metabolic health: Insulin resistance, central weight gain, and high triglycerides can weaken HDL’s performance. Inflammation or illness: Ongoing inflammation can reduce HDL’s protective effects. Medications & lifestyle: Statins, fibrates, niacin, GLP-1/weight-management therapies, exercise, and nutrition changes can shift HDL function (effects vary by person). How this fits into the HDL Function Panel AALP ApoA1 is one of several HDL-related proteins measured together. These results help calculate: Predicted cholesterol efflux (pCEC): an estimate of how well your HDL removes cholesterol. HDLfx pCAD Score: a score that helps your clinician judge artery-disease risk even when standard cholesterol looks okay. No single result diagnoses heart disease. Your provider interprets this marker in context with your history, exam, and other tests. What to do next (practical steps) Bring your report to your clinician and review AALP ApoA1 with your LDL/ApoB, triglycerides, blood pressure, blood sugar (A1c), and the full HDL Function Panel. Ask about targets and follow-up: Should you focus on weight management, triglyceride reduction, or inflammation control? Lifestyle basics that support HDL function: Routine aerobic + resistance exercise Weight management (especially waist circumference) Triglyceride-friendly eating (reduce added sugars and refined carbs; emphasize fiber-rich plants, lean proteins, and unsaturated fats) Sleep, stress, and smoke-free living Medication review: If you’re on statins or other therapies, ask whether adjustments could help your overall risk profile. FAQs Is AALP ApoA1 the same as the standard ApoA1 test? No. The standard test measures all ApoA1 in mg/dL. AALP ApoA1 measures ApoA1 on HDL particles using a different method and reports nmol/L. The numbers can’t be compared. If my AALP ApoA1 is “good,” am I protected? It’s a positive sign, but heart risk depends on many factors. Your clinician will interpret this result with your other labs and your overall health picture. Why would my AALP ApoA1 be low if my HDL cholesterol is normal? HDL function and HDL quantity don’t always match. This test helps explain that mismatch and can guide more personalized prevention.