A correlation analysis of MAO expressions with genes in ccRCC patients identified 261 MAOA-associated genes, including 167 positively correlated genes (with Spearman's correlation coefficient of ≥0.3) and 94 negatively correlated genes (with Spearman's correlation coefficient of ≤ -0.3). This evidence concerns the gene MAOA and nonpapillary renal cell carcinoma.