The mean level of AM mRNA expression was 364 ± 46 fg/pg GAPDH mRNA in colorectal normal tissue (mean ± SEM), whereas it was, respectively, 457 ± 133, 810 ± 156, 825 ± 151, and 1072 ± 265 fg/pg GAPDH mRNA for CRC stages I, II, III, and IV (Fig. 1). This evidence concerns the gene GAPDH and colorectal carcinoma.