Figure 1.
Apigenin, luteolin, and lipopolysaccharides (LPS) showed no cytotoxicity to the microglial cell. Microglial cells (5 × 105 cells/mL) were cultured and treated with apigenin or luteolin at indicated concentrations (a); LPS at indicated concentrations (b); and apigenin or luteolin at 0, 15, 30, and 60 µM and treated with 2000 ng/mL (c) for 24 h before cell viability studies were performed. The results are presented as the mean ± standard deviation (SD) (n = 3).