Muscular Dystrophy-Dystroglycanopathy , Type a, 6, also known as muscular dystrophy-dystroglycanopathy , type a6, is related to congenital muscular dystrophy-dystroglycanopathy type a6. An important gene associated with Muscular Dystrophy-Dystroglycanopathy , Type a, 6 is LARGE1 (LARGE Xylosyl- And Glucuronyltransferase 1). Affiliated tissues include eye and brain, and related phenotypes are global developmental delay and elevated circulating creatine kinase concentration