Additional file 4 of MicroRNA-27b targets CBFB to inhibit differentiation of human bone marrow mesenchymal stem cells into hypertrophic chondrocytesShuang Lv, , Lin Chen, , Wei Feng, , , , , Guangfan Chi &
Additional file 4. IHC staining of OPN and OCN for detecting endochondral bone formation in the hypertrophic cartilage region. Positive control is growth plate area in the same slide. Scale bar = 50 μm. The blank arrow denotes bone marrow cavity structures, and white arrow denotes the junction area between the hypertrophic zone of cartilage and subchondral bone. The black triangle denotes hypertrophic zone of cartilage in the positive control.