Fig. 9

Chondrogenic ability of synovial MSCs before and 48 h after preservation. Passage 2 synovial MSCs before and 48 h after preservation were pelleted and cultured in chondrogenic medium for 21 days. a Representative macroscopic images of cartilage pellets. b Histological sections stained with toluidine blue. c Wet weight of cartilage pellets. Median values and interquartile ranges are shown (n = 10). ***p < .001, compared with the value at Time 0 by Kruskal-Wallis test followed by Dunn’s multiple comparisons. ND not detected