Serum concentrations of Dkk-1 and markers of cartilage degradation in patients with knee osteoarthritis and RA
| Serum markers | Knee OA (n = 85) | RA (n = 55) |
| Dkk-1, pg/ml | 2367 (943) | 22 070 (18 073) |
| Helix II, ng/ml | 6.01 (2.90) | 7.86 (3.86) |
| C2C, ng/ml | 83.7 (30.8) | 155.2 (66.5) |
Results are shown as mean (SD). OA, osteoarthritis; RA, rheumatoid arthritis.