Figure 3.
(A) Effect of GPE with or without LPS-induced cell viability in RAW264.7 cells. (B) Effect of GPE on LPS-induced production of the inflammatory mediators NO. (C) Effect of GPE on LPS-induced COX-2 protein expression level in RAW264.7 cell. The results obtained from three independent experiments were expressed as mean ± standard deviation (SD), compared with the control group. ## p < 0.005 and ### p < 0.001 vs. untreated group; * p < 0.05, *** p < 0.001 vs. LPS-treated group. GPE; Gynura procumbens polyphenolic extract, COX-2; cyclooxygenase-2.