Figure 4From: Ethyl acetate fraction from Angelica sinensis inhibits IL-1β-induced rheumatoid synovial fibroblast proliferation and COX-2, PGE2, and MMPs productionPGE2 production was inhibited by treatment with EAAS. IL-1 production of PGE2 by RASFs was evaluated with ELISA kit. IL-1β-induced PGE2 production was significantly inhibited by EAAS. Results are presented as mean ± SD. n = 3. *p < 0.05 versus no IL-1β and EAAS, ‡p < 0.05 versus IL-1β without EAAS.Back to article page