DMD and Duchenne muscular dystrophy: The ratio of the utrophin intensity in human dystrophin+ versus human dystrophin− fibers in the DMD-soFLDys group was 0.6984 ± 0.04572 (mean ± SEM, n = 6), which is similar to the normal group, 0.6736 ± 0.06212 (mean ± SEM, n = 6).