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 9

Immunohistochemical staining of NF-κB in lung tissues of rats in different groups and IOD of NF-κB expression. 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 .