MSR1 and chronic obstructive pulmonary disease: The clinical groups showed a gene overexpression of MSR1 compared to the C group (Figure 1A): NA vs. C (RQ = 3.34, p = 0.0007), AA vs. C (RQ = 3.13, p = 0.0036), and COPD vs. C (RQ = 2.50, p = 0.0120), but without statistically significant differences between groups of disease.