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. 2022 Aug 10;13:963506. doi: 10.3389/fphar.2022.963506

FIGURE 1.

FIGURE 1

Celastrol alleviated the progression of OA in rat model. (A) Timeline for depicting overall the design of the study. (B) Knee joint diameter of the affected limbs of rats before surgery and 16 weeks after surgery; n = 6. (C) Representative macroscopic appearance of femoral condyles and tibial plateau showed joint damage (red arrow). (D) H&E and S&F staining of medial compartment cartilage and subchondral bone of knee joints; n = 5 (scale bar: 200 μm). (E) H&E staining of synovial membrane of the medial compartment; n = 5 (scale bar: 100 μm). (F–H) Quantitative analysis of cartilage degeneration score, subchondral bone damage score and synovitis inflammation score in three groups, n = 5. All data represent mean ± S.E.M.*p < 0.05, **p < 0.01, ***p < 0.001 and ****p < 0.0001.