Immuno-stimulatory effects of the AQ and ALC ginseng extracts on 24 hours macrophage production of (A) NO, (B) TNF-α and (C) IL-6. Murine macrophages (RAW 264.7 cells) were treated with or without AQ and ALC ginseng extracts (20, 50, 200 μg/ml), LPS (1 μg/ml) for 24 hours and the culture supernatants were analysed for NO and TNF-α/IL-6 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 untreated (vehicle) control were statistically significant.