Comparison of the serum levels of myo-miRNAs in eight Becker muscular dystrophy (BMD) patients and six control subjects. Box plots show relative expression of miR-1 (A), miR-133a (B), miR-206 (C), and miR-133b (D) determined by quantitative real-time polymerase chain reaction (qRT-PCR). Single points show the individual myo-miRNAs levels, the box represents the quartiles (first and third) divided into two parts by the median (second quartile), and the maximum and minimum values are also indicated. The asterisk indicates significant p-values (p ≤ 0.05) between patients and controls using the Wilcoxon–Mann–Whitney test. BMD: Becker muscular dystrophy. CTRL: controls.