Among the top five hub genes identified in the protein-protein interaction network, only HNF4A (log2FC = 1.89, p < 2.92e−5), UBD (log2FC = 2.69, p < 7.37e−5) and EGR1 (log2FC = 1.47, p < 5.31e−12) were significantly and differentially upregulated in DMD-COs. The gene discussed is UBD; the disease is Duchenne muscular dystrophy.