Fig. 2. Effect of polyphenols from I. latifolia on LPS-induced TNF-α (A), IL-1β (B) and IL-6 (C) levels in RAW 264.7 macrophages by ELISA. Data represent the means ± SD from three separate experiments. **P < 0.01 as compared with the control group. Different letters represent significant differences (P < 0.05).