From: OPG and RANKL in serum and synovial fluids of patients with rheumatoid arthritis, osteoarthritis and spondylarthropathy
RA
OA
SpA
S-OPG (pmol/l)
1.9 (1.6; 2.3)
2.4 (2.2; 2.7)
1.8 (0.9; 2.7)
SF-OPG (pmol/l)
3.8 (3.1; 4.4)
8.4 (7.5; 9.3)
3.5 (2.1; 4.8)
SF-sRANKL (pmol/l)
3.36 (2.5; 4.2)
3.41 (2.9; 3.8)
1.9 (1.5; 2.5)