Figure 3From: Chondrogenic differentiation of human subchondral progenitor cells is affected by synovial fluid from donors with osteoarthritis or rheumatoid arthritisAlcian blue staining of CSP pellet cultures. Alcian blue staining of CSP pellet cultures cultured in the presence of synovial fluid from ND, OA or RA donors, at day 28.Back to article page