Understanding Lp-PLA2: Normal vs Optimal Ranges

?What is Lp-PLA2?

Lp-PLA2 (lipoprotein-associated phospholipase A2) is an enzyme that travels bound to LDL particles in the bloodstream. It is produced by inflammatory cells within arterial plaques and generates pro-inflammatory and pro-oxidative substances that promote plaque instability. It is a marker of vascular inflammation within arterial plaque.

!Why It Matters

Lp-PLA2 is an independent predictor of coronary heart disease, stroke, and sudden cardiac death — particularly of the vulnerable plaque type that is prone to rupture and cause heart attacks. It may help identify high-risk patients even when standard lipid markers appear normal. The STABILITY trial showed that dalcetrapib (an Lp-PLA2 inhibitor) did not improve outcomes, but Lp-PLA2 measurement still has value as a risk marker.

Reference Ranges

Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.

Symptoms of Imbalance

• Elevated Lp-PLA2 causes no symptoms — it is a risk marker

How to Improve Your Levels

• 1Statin therapy reduces Lp-PLA2 significantly
• 2Anti-inflammatory lifestyle (diet, exercise) reduces vascular inflammation

When to Test

Advanced cardiovascular risk panel. Consider in intermediate-risk patients to guide treatment intensity.

Related Biomarkers