Novel mutations widen the phenotypic spectrum of slow skeletal/β-cardiac myosin (MYH7) distal myopathy
| العنوان: | Novel mutations widen the phenotypic spectrum of slow skeletal/β-cardiac myosin (MYH7) distal myopathy |
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| المؤلفون: | Nuria Muelas, Zohar Argov, Juan J. Vílchez, Sini Penttilä, Volker Straub, Carsten Bonneman, Patricia G. Wheeler, Kathryn R. Wagner, Phillipa J. Lamont, Rebecca Gooding, Kym M. Boycott, Gerald F. Cox, Alan H. Beggs, Jahannaz Dastgir, Alexandru Barboi, Anne M. Connolly, David Hilton-Jones, E. Schmedding, Johanna Palmio, Elizabeth T. DeChene, NP Davies, Heinz Jungbluth, Tiina Suominen, Bjarne Udd, Kate Bushby, Peter Van den Bergh, William Wallefeld, Nigel G. Laing, Elizabeth Wraige, Christopher Staples |
| المساهمون: | Neuroprotection & Neuromodulation |
| المصدر: | Human mutation. 35(7) |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Proband, Adult, Male, Pathology, medicine.medical_specialty, Adolescent, Child, preschool, Biopsy, DNA Mutational Analysis, Cardiomyopathy, Biology, Article, 03 medical and health sciences, 0302 clinical medicine, Myosin, Genetics, medicine, Missense mutation, Humans, Myopathy, Child, Muscle, Skeletal, Genetics (clinical), 030304 developmental biology, Aged, 0303 health sciences, Myosin Heavy Chains, Infant, Newborn, Skeletal muscle, Infant, Middle Aged, medicine.disease, Immunohistochemistry, 3. Good health, Distal Myopathies, medicine.anatomical_structure, Phenotype, young adult, MYH7, Female, medicine.symptom, mutation, Cardiac Myosins, 030217 neurology & neurosurgery |
| الوصف: | Laing early onset distal myopathy and myosin storage myopathy are caused by mutations of slow skeletal/β-cardiac myosin heavy chain encoded by the gene MYH7, as is a common form of familial hypertrophic/dilated cardiomyopathy. The mechanisms by which different phenotypes are produced by mutations in MYH7, even in the same region of the gene, are not known. To explore the clinical spectrum and pathobiology, we screened the MYH7 gene in 88 patients from 21 previously unpublished families presenting with distal or generalized skeletal muscle weakness, with or without cardiac involvement. Twelve novel mutations have been identified in thirteen families. In one of these families, the father of the proband was found to be a mosaic for the MYH7 mutation. In eight cases, de novo mutation appeared to have occurred, which was proven in four. The presenting complaint was footdrop, sometimes leading to delayed walking or tripping, in members of 17 families (81%), with other presentations including cardiomyopathy in infancy, generalized floppiness, and scoliosis. Cardiac involvement as well as skeletal muscle weakness was identified in nine of 21 families. Spinal involvement such as scoliosis or rigidity was identified in 12 (57%). This report widens the clinical and pathological phenotypes, and the genetics of MYH7 mutations leading to skeletal muscle diseases. |
| اللغة: | English |
| تدمد: | 1098-1004 1059-7794 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95d5f95eec553d1cc27eafb63d53104cTest http://ora.ox.ac.uk/objects/uuid:95321b62-c413-45d4-81cd-c9728f1b6a5fTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....95d5f95eec553d1cc27eafb63d53104c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10981004 10597794 |
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