Fig. 3From: Repair of articular cartilage defects with intra-articular injection of autologous rabbit synovial fluid-derived mesenchymal stem cellsTrilineage differentiation of rbSF-MSCs characterized by histological staining. a, d Alizarin red staining for osteogenic differentiation; b, e oil red O staining for adipogenic differentiation; c, f toduiline staining for chondrogenic differentiation. Scale bar = 100 μmBack to article page