Gamma-sarcoglicanopatía: estudio clinicopatológico y genético de 11 casos
| Autor: | Sánchez-Espíldora P, Flores-Calvete J, Fernández-Hojas R, Martínez de Alegría A, Núñez-Delgado M, A Teijeiro-Ferreira, D García-García, Cimas-Hernando I, Navarro-Fernández Balbuena C, J M Fernández-Rodríguez, Fernández-Couto D, Escribano-Arias Jl, S Teijeira-Bautista, Brasa-Fernández Fierros J |
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| Rok vydání: | 1998 |
| Předmět: |
musculoskeletal diseases
congenital hereditary and neonatal diseases and abnormalities Pathology medicine.medical_specialty Muscle biopsy biology medicine.diagnostic_test Dystrophy General Medicine musculoskeletal system medicine.disease Mutation (genetic algorithm) medicine biology.protein Immunohistochemistry Neurology (clinical) Muscular dystrophy Dystrophin Pathological Limb-girdle muscular dystrophy |
| Zdroj: | Revista de Neurología. 26:905 |
| ISSN: | 0210-0010 |
| DOI: | 10.33588/rn.26154.98162 |
| Popis: | INTRODUCTION Limb Girdle Muscular Dystrophy type 2C (LGMD2C) is an autosomal recessive dystrophy due to the deficit of gamma-sarcoglycan, one of the proteins of the dystrophin-associated proteins complex (DAP). A new mutation in the gamma-sarcoglycan gene, 13q12, has been described recently and is exclusive of the gypsy community. OBJECTIVE To describe the clinicopathological and the genetic findings of eleven cases from a Spanish gypsy family with LGMD2C and the mutation C283Y. MATERIAL AND METHODS We describe a large gypsy family with the C283Y mutation and eleven affected patients. We have performed an extensive clinical and pathological study with immunohistochemistry and Western blot analyses in the eleven patients and a genetic study of a total of twenty-seven members of the family. RESULTS The patients presented a severe muscular dystrophy with a dystrophic pattern in the muscle biopsy, normal immunolabeling for dystrophin, very weak for alpha-, beta- and delta-sarcoglycan and absent for gamma-sarcoglycan. These eleven patients were found to be homozygous for the mutation and twelve other members of the family, heterozygous. CONCLUSIONS The clinical picture and the evolution of the disease herein described is similar to that observed in DMD. Two fundamental differences were found: the autosomal recessive mode of inheritance, and the normal immunohistochemistry and immunoblot for dystrophin in the skeletal muscle. |
| Databáze: | OpenAIRE |
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