Correlation analysis showed that all three biomarkers positively correlated with the SYNTAX score (IL-1RA: r = 0.38, p = 0.004; resistin: r = 0.41, p = 0.002; hs-CRP: r = 0.46, p < 0.001), highlighting their association with the angiographic severity of CAD. The gene discussed is RETN; the disease is coronary artery disorder.