UTRN and Duchenne muscular dystrophy: Intensity analysis revealed a significant positive correlation between utrophin levels and ɣ-SG subunit levels in individual fibres in the muscle of the 4 year old DMD patient P11 (Pearson’s, p = 0.0008) but not in the 8 year old P12 (Spearman’s, p = 0.1166; Fig 4a and 4b).