Fig. 6

Effects of Feikang granules on inflammatory cytokines secreted by alveolar macrophages in COPD model rats. Cytokines IL-1β, TNF-α, IL-6 and IL-17 were measured. The data are shown as the mean ± the standard deviation (SD). ^∗p < 0.05 and ^∗∗p < 0.01 indicate statistically significant differences compared to the model group; ^##p < 0.01 indicate a statistically significant difference in model group compared with normal control group. All results were repeated from 3 batches of culture mediums