Figure 3From: Comparison of articular cartilage repair with different hydrogel-human umbilical cord blood-derived mesenchymal stem cell composites in a rat modelSafranin-O staining of repair tissue at the articular cartilage defect in the rat femoral trochlear groove at 16Â weeks after transplantation. Overall, Safranin-O staining revealed more cartilaginous components in the experimental knees compared to the corresponding controls.Back to article page