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Berberine inhibited protein expression of the NF-κB signalling pathway in LPS-stimulated IPEC-J2 cells. Changes in protein expressions of (a) IκΒα/p- IκΒα and (b) p65/p-p65. Cells were pre-treated with berberine for 4 h before incubation with 5 μg/ml LPS for 1 h. *P < 0.05); **P < 0.01, both compared to the control. #P < 0.05; ##P < 0.01, both compared to the model.
