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. 2022 Jan 3;23:3. doi: 10.1186/s12891-021-04952-9

Fig. 2.

Fig. 2

The immunohistochemical expression of MMP-3 and TIMP-1 in different layers of cartilage (Immunohistochemistry using the SP method, original magnification: ×100). A The cartilage of a KBD, B The cartilage of a OA; C The cartilage of a healthy control, D A negative control with PBS was used instead of the MMP-3 or TIMP-1primary antibody