Increased expression of IL-29 in rheumatoid arthritis (RA) synovium compared to healthy control (HC) synovium. RA (n = 6) and HC (n = 5) synovium were stained with rabbit anti-human IL-29 (A), and immunostaining was scored on a 0 to 5 scale (B). Values in (B) are the mean ± SD. Actual P values are shown in the graph.
Wang et al. Arthritis Research & Therapy 2012 14:R228 doi:10.1186/ar4067