Research Article

Intraplaque Expression of C-Reactive Protein Predicts Cardiovascular Events in Patients with Severe Atherosclerotic Carotid Artery Stenosis

Table 4

Correlation between intraplaque CRP and inflammatory biomarkers in upstream and downstream plaques.

UpstreamDownstream
CRP, % vs. valueCRP, % vs. value

Neutrophils/mm20.2080.008Neutrophils/mm20.0870.275
Total collagen, %0.0630.430Total collagen, %−0.0350.659
Collagen I, %−0.0080.918Collagen I, %−0.0460.560
Collagen III, %−0.1380.082Collagen III, %−0.0300.710
Smooth muscle cells, %−0.315<0.001Smooth muscle cells, %0.0280.726
Total macrophages (CD68+), %0.1580.046Total macrophages (CD68+), %0.0970.222
M1 subset (CD86+), %0.1130.151M1 subset (CD86+), %0.1930.014
M1 subset (HLA-DR+), %0.1610.042M1 subset (HLA-DR+), %0.2260.004
M2 subset (CD163+), %0.0310.694M2 subset (CD163+), %0.344<0.001

Correlations were performed by Spearman’s rank correlation coefficient.
CRP: high sensitivity c-reactive protein.
CD: cluster of differentiation.
M: macrophage.
HLA-DR: human leukocyte antigen-antigen D related.