Figure 2.

Boxplots showing scores of (A) thickening of alveolar septa, peribranchial and perivascular, (B) scores of congestion or hemorrhages, (C) scores of infiltrations by inflammatory cells and (D) the total scores of thickening (of alveolar septa, peribranchial and perivascular). All boxplot graphs treatment with different concentrations of RKs (25, 50, 100, 200 mg/kg/p.o.). Difference between groups was assessed using independent samples Kruskal-Wallis Test, followed by Kruskal-Wallis pairwise comparisons (n = 4–6). Asterisks denotes significant different versus CP (150 mg/Kg) (*) significant at p < 0.05; (**) highly significant at p < 0.01; (***) very high significant at p < 0.001).