ADH4 and colorectal cancer: The expression of selected genes related to MG degradation III (AKR1B10, AKR1C2 and ADH4), glyoxalase system (GLO1 and HAGH), glucose transport (SLC2A1 and SLC5A1) and colorectal cancer-associated genes (AREG, CXCL8 and CEACAM1) were quantitated using qRT-PCR (Fig. 3).