Figure 1.

Ginsenoside Rg1 alleviated CS-induced emphysema and fibrosis. (a) Lung histology was analyzed via H&E staining (×100 magnification). (b) Lung histology was analyzed via Masson trichrome staining (×100 magnification). (c) Quantitative analysis of collagen in lung tissue was carried out using Image-Pro Plus 6.0 software. The percentage of the positive staining area of the airway was counted from 6 randomly selected fields per section. Mean optical densities were measured. All data are shown as the mean ± SD; n = 6 per group. Statistical significance was assessed by one-way ANOVA and Tukey's post hoc test. ^∗∗P < 0.01 versus normal group; ^##P < 0.01 versus COPD group.