Figure 6From: Th17 and Th22 cells in psoriatic arthritis and psoriasisRepresentative interleukin 17 and interleukin 22 expression patterns in synovial tissue from osteoarthritis, rheumatoid arthritis and psoriatic arthritis patients. (A) Positive cells show red staining; original magnification, ×200. (B) and (C) Semiquantitative (SQ) analysis shows grading of the percentage of cells present in entire tissue: 0 = no staining, 1 = <10%, 2 = 10% to 25%, 3 = 25% to 50% and 4 = >50% for both (B) interleukin 17-positive (IL-17+) and (C) IL-22+ in tissue samples from patients with osteoarthritis (OA), rheumatoid arthritis (RA) and psoriatic arthritis (PsA). * p<0.05, **p<0.01, ***p<0.001.Back to article page