Expression levels of FOXO1 (GSE1004_GPL8300_40570_at), FOXO3 (GSE1004_GPL8300_34740_at, GSE10007_GPL92_47893_at, GSE1007_GPL92_49469_at, and GSE1007_GPL93_49651_at), and FOXO4 (GSE1007_GPL92_46743_s_at) were decreased in DMD patients (Fig. 2d). The gene discussed is FOXO1; the disease is Duchenne muscular dystrophy.