Table 2

 Mean S100A12 serum concentrations and expression of S100A12 in synovial tissue layers before and after treatment with intra-articular Corticosteroids (IAC) or infliximab

Serum concentrations (ng/ml)Lining layerSublining layerPerivascular layerOverall index
*p<0.05; **p<0.005.
IAC responder prior to IAC585 (±170)0.42 (±0.12)1.05 (±0.16)0.53 (±0.18)2.00 (±0.39)
After IAC*490 (±160)*0.11 (±0.07)**0.37 (±0.18)0.32 (±0.13)**0.79 (±0.35)
Infliximab responder prior to infliximab350 (±50)0.33 (±0.21)1.17 (±0.17)0.33 (±0.21)2.00 (±0.26)
After infliximab**190 (±30)0 (±0)*0.33 (±0.21)0 (±0)*0.33 (±0.21)
Infliximab non-responder prior to infliximab650 (±180)0.25 (±0.16)1.25 (±0.25)0.88 (±0.23)2.38 (±0.53)
After infliximab620 (±150)0 (±0)0.75 (±0.25)0.38 (±0.26)1.13 (±0.44)