However, compared to normal controls, MR patients with HF had significantly upregulated expressions of MAS1 oncogene (MAS1) (fold change: 3874.84, upregulation) and mineralocorticoid receptor (NR3C2) (fold change: 2.37, upregulation) in the left atrium (Table 3). The gene discussed is NR3C2; the disease is hydrops fetalis.