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. 2021 May 6;11:9683. doi: 10.1038/s41598-021-89239-8

Figure 6.

Figure 6

Histological comparison of the inhibitory effects of cultured MSCs versus thawed cryopreserved MSCs on OA progression in both knees of the same rat. (A) Histological images for medial tibial and femoral condyles stained with safranin O. Best, representative, and worst images are selected based on Osteoarthritis Research Society International (OARSI) histological scores on the cultured cell side. (B) Statistical analysis of OARSI histological score. NS, not significant by Wilcoxon's signed rank test (n = 9).