CDKN3 and neoplasm: There were highly significant positive correlations between AADAC gene expression and both tumor grades (r = .603, p<0.05) and tumor stages (r = .756, p<0.001) and there was a significant negative correlation between PLEKHS1 gene expression and tumor grades (r = -.462, p<0.05) while CDKN3 gene expressions had no significant correlations with tumor grades and stages.