Effect of the AQ and ALC ginseng extracts on LPS-stimulated 24 hours macrophage production of (A) NO and (B) TNF-α. Murine macrophages (RAW 264.7 cells) were pre-treated with without the AQ and ALC ginseng extracts (50, 200 μg/ml), for two hours after which LPS 1 μg/ml was added; and 24 hours later the NO and TNF-α contents of the culture supernatants were determined by Griess reaction assay and ELISA, respectively. Three independent experiments were performed and the data were shown as mean ± SD. Datasets were evaluated by ANOVA. * Values P < 0.001 compared to the LPS positive control were statistically significant.