The Isosteroid Alkaloid Imperialine from Bulbs of Fritillaria cirrhosa Mitigates Pulmonary Functional and Structural Impairment and Suppresses Inflammatory Response in a COPD-Like Rat Model

Figure 7

The scores of histological examination of lung tissues of rats in different groups. Results were expressed as the mean ± SEM (). Significant differences compared with the control group were designated as , , and . Significant differences compared with the COPD group were designated as  .