The RNA expression levels of CELF1, -3 and -6 did not differ between DM1 cases and controls, while a slight upregulation of MBNL1, -2 and -3 was found in DM1 (logFCCELF1 = -0.09; logFCMBNL1 = -0.50; logFCMBNL2 = -0.44, logFCMBNL3 = -0.60). This evidence concerns the gene MBNL1 and myotonic dystrophy type 1.