Fig. 6From: Mesenchymal stem cells in synovial fluid increase in number in response to synovitis and display more tissue-reparative phenotypes in osteoarthritisImmunohistochemical evaluation of the synovium. A Representative images of CD68, 73, and ZO-1. B Quantification of the positive areas of the immunostained cells (n = 6). *p < 0.05 by the Mann–Whitney U test between the sham and pMx groups (black asterisks). *p < 0.05 by Kruskal–Wallis/Steel tests between the intact and pMx groups (orange asterisks) and the intact and sham groups (blue asterisks)Back to article page