Mizuno et al. (2011) have shown that the serum levels of miR-1, miR-133a, and miR-206 are increased in Duchenne muscular dystrophy (DMD) models, dystrophin-deficient muscular dystrophy mouse (mdx) and X-linked muscular dystrophy dog, compared with normal animals. The gene discussed is DMD; the disease is Duchenne muscular dystrophy.