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Activity of caspase-3 in EMT6/P cells after treatment with 80 μM TQ, 425 μM Piperine, and combination (80 μM TQ + 425 μM Piperine). Results are expressed as the mean optical density (405 nm) ± standard deviation (SD) (n = 3). * p < 0.05 compares the treated cell with control cell; compared with single 48 h single TQ treatment group, # p < 0.05; compared with 48 h single piperine treatment group € p < 0.05.
