Matrix metallopeptidase 12 (MMP12; rs626750), superoxide dismutase-3 (SOD3; rs1799895 and rs699473), and transforming growth factor-β1 (TGF-β1; rs10429950) are related to COPD risk in diverse ethnicities [12,14]. The gene discussed is TGFB1; the disease is chronic obstructive pulmonary disease.