In all smokers with COPD, close correlations were both found between IL-13 and miR-410-3p (Figure 7(b), r = −0.820, P < 0.001) together with IL-13 and OIP5-AS1 (Figure 7(c), r = 0.618, P < 0.001). This evidence concerns the gene OIP5 and chronic obstructive pulmonary disease.