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Effect of cinnamic aldehyde (CA) on the viability of human osteoarthritis (OA) chondrocytes. (A) The chemical structure of CA. (B) Human OA chondrocytes were pretreated with different concentrations of CA (0, 5, 10, 20, 50,100, and 200 μM) for 24 h and evaluated using the CCK-8 assay.
