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IL-1β induces inflammatory injury to chondrocytes in vitro. (a, b) CHON-001 and ATDC5 cells were treated with IL-1β (0 ng/mL, 1 ng/mL, 5 ng/mL, 10 ng/mL), and the viability of the cells was measured by CCK-8 assay. (c, d) Flow cytometry was employed to measure the apoptosis rate of CHON-001 and ATDC5 cells. ns.: not statistically significant
*P < 0.05, **P < 0.01, and ***P < 0.001 compared with the control.
