Correlation of Lp(a), ApoB and oxLDL with Endothelial Damage Reading in Patients with Different Degrees of Coronary Atherosclerosis.

This pilot hypothesis-generating study evaluated whether lipid-related biomarkers (Lp(a), ApoB, and oxLDL), endothelial injury markers (endocan, vimentin), and extracellular matrix glycoproteins (TSP-1, TSP-2) reflect the severity of coronary artery disease (CAD) in patients with stable angina pectoris. 93 patients underwent invasive coronary angiography/coronary CT angiography. CAD severity was evaluated using Gensini, SIS, SSS, and CAD-RADS scores. CAD was confirmed in 76.3% (n = 71). OxLDL correlated with Gensini (r = 0.455; p = 0.006), atherosclerotic segments (r = 0.469; p = 0.005), arteries (r = 0.479; p = 0.004), revascularization indication (r = 0.318; p = 0.003), circumflex artery stenosis (r = 0.323; p = 0.005). OxLDL also correlated with vimentin (r = 0.459; p < 0.001). Vimentin correlated with Gensini (r = 0.480; p = 0.005), SIS (r = 0.349; p = 0.003), SSS (r = 0.320; p = 0.008), CAD-RADS (r = 0.331; p = 0.005), atherosclerotic segments (r = 0.515; p = 0.003), arteries (r = 0.384; p = 0.030), revascularization indication (r = 0.324; p = 0.003). Endocan, TSP-1, and TSP-2 showed no significant associations. These exploratory findings suggest that oxLDL and vimentin may be associated with CAD severity; however, confirmation in larger, prospective cohorts is required.