Table 4. Circulating endothelial progenitor cell (EPC) levels and other markers.
| No CIN | With CIN | P value | |
| n = 59 | n = 18 | ||
| EPC levels (%) | |||
| CD34+ | 0.035±0.033 | 0.011±0.007 | 0.004 |
| CD34+KDR+ | 0.012±0.010 | 0.003±0.001 | 0.001 |
| CD34+KDR+CD133+ | 0.010±0.010 | 0.003±0.002 | <0.001 |
| EPC levels (cells/105 events) | |||
| CD34+ | 35.5±33.6 | 11.4±7.0 | 0.004 |
| CD34+KDR+ | 9.5±6.1 | 3.3±1.9 | <0.001 |
| CD34+KDR+CD133+ | 8.1±5.6 | 3.1±1.8 | <0.001 |
| hsCRP (mg/L) | 0.4 (0.2–1.1) | 0.9 (0.2–3.3) | 0.191 |
| Nitric oxide (μmol/L) | 51±29 | 33±24 | 0.031 |
| Cystatin C (mg/dL) | 0.9±0.3 | 1.4±0.8 | 0.046 |
| MMP-2 (ng/mL) | 151±45 | 159±45 | 0.545 |
| MMP-9 (ng/mL) | 55±37 | 44±19 | 0.314 |
Values are mean ± SD or median (interquartile range).
CIN, contrast-induced nephropathy; hsCRP: high-sensitivity C-reactive protein; MMP: matrix metalloproteinase.