Inhibitory Effects of Porphyra tenera Extract on Oxidation and Inflammatory Responses

Figure 6

Inhibitory effects of PTE on LPS-stimulated TNF-α (a) and IL-6 (b) production in Raw 264.7 macrophage cells. Cells (5 × 10⁵ cells/mL) were treated with PTE (0.25–1 mg/mL) for 1 h followed by continuous incubation with 1 μg/mL LPS for the next 20 h TNF-α and IL-6 concentrations in the culture supernatants were recorded as described in Section 2. Data show the means ± SD from three experiments.  < 0.01 compared to the control;  < 0.05 compared with LPS alone.

(a)

(b)