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. 2020 Mar 12;15(3):e0230228. doi: 10.1371/journal.pone.0230228

Fig 2. Photomicrographs of histological sagittal sections of the rat femoral articular cartilage.

Fig 2

Images of articular cartilage from the COAG (A), CG (B), and OAG (C) stained with HE; the surface, middle, and deep layers were observed. Immunohistochemical staining for Col2 was observed in the layers (surface, middle, and deep) of articular cartilage in the COAG (D), CG (E), and OAG (F) and IHH expression was detected in the layers of articular cartilage in the COAG (G), CG (H), and OAG (I). HE scale bar: 200 μm, immunohistochemistry scale bar: 50 μm.