NNMT and renal cell carcinoma: The ratio of the concentration of LCP1 (3.4 fold) and NM23A (2.4 fold) between controls and subjects with RCC was lower than that of NNMT (30.1 fold), however the difference in concentration of LCP1 (p < 0.0001) and NM23A (p < 0.0001) was significant.