RT Journal Article T1 Clinical Utility Gene Card for: Becker muscular dystrophy. A1 Coote, David A1 Davis, Mark R A1 Cabrera, Macarena A1 Needham, Merrilee A1 Laing, Nigel G A1 Nowak, Kristen J K1 Genetic counselling K1 Neuromuscular disease AB Variants in the dystrophin /DMD gene can result in Becker or Duchene muscular dystrophy (BMD and DMD, respectively, also known as 'dystrophinopathies') almost solely in male individuals as DMD is located on the X chromosome . The difference in phenotype is usually dependent on whether the variant is in frame, resulting in an internally deleted, shorter, yet partially functional dystrophin protein (BMD), or out-of-frame resulting in no dystrophin protein (DMD) [1]. However, other clinical phenotypes may arise from a DMD variant such as isolated quadriceps myopathy [2]; asymptomatic hyperCKemia [3]; myalgia , cramps and rhabdomyolysis [4]; dilated cardiomyopathy [5]; isolated cognitive impairment [6]; and symptomatic female carriers [7]. PB Nature Publishing Group YR 2018 FD 2018-07 LK http://hdl.handle.net/10668/12165 UL http://hdl.handle.net/10668/12165 LA en NO Coote D, Davis MR, Cabrera M, Needham M, Laing NG, Nowak KJ. Clinical Utility Gene Card for: Becker muscular dystrophy. Eur J Hum Genet. 2018 Jul;26(7):1065-1071. DS RISalud RD Apr 9, 2025