It indicated that creatinine (P = 0.008), uric acid (P = 0.006), total cholesterol (P = 0.015), low-density lipoprotein (P < 0.001), brain natriuretic peptide precursor (P = 0.007), red blood cell (P = 0.010), hemoglobin (P = 0.023), and hematocrit (P = 0.022) in the group TSI are significantly higher than those in the TIA group, and the differences were statistically significant. The gene discussed is NPPB; the disease is transient ischemic attack.