Utrophin/Tubulin ratios range from 0,31 and 1,66 (medium value = 0,80) in DM1 muscles and from 0,15 to 0,85 (medium value = 0,46) in control samples, with no significant differences between the two groups (Figure 3b). The gene discussed is UTRN; the disease is myotonic dystrophy type 1.