normal control, showed normal structure of bone, score 0 (I, II, III).
CIA, showed moderate erosion of articular cartilage, edema, and a massive influx of inflammatory cells into the subsynovial connective tissue, score 2. (IV).
CIA+betamethasone, showed no erosion of articular cartilage, no edema and normal synovial membrane, score 1. (V).
