Fig. 14

IL-6 and TNF-α mRNA expression in lung tissue of Control, Crocin, COPD and COPD plus Crocin (CO + CR) rats. All the groups were statistically compared by ANOVA followed by Tukey’s multiple comparison. **P < 0.01, ***P < 0.001 vs. Control group. ††P < 0.01 vs. COPD rats. Data are expressed as mean ± SEM