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  • Title: Identification of a Novel Mutation in the Titin Gene in a Chinese Family with Limb-Girdle Muscular Dystrophy 2J.
    Author: Zheng W, Chen H, Deng X, Yuan L, Yang Y, Song Z, Yang Z, Wu Y, Deng H.
    Journal: Mol Neurobiol; 2016 Oct; 53(8):5097-102. PubMed ID: 26392295.
    Abstract:
    Limb-girdle muscular dystrophies (LGMD) are a highly heterogeneous group of genetic myopathies characterized by progressive proximal pelvic and/or shoulder girdle muscle weakness, with the onset ages ranging from early childhood to late adulthood. The identification of these dystrophies through genetic testing will not only inform long-term prognosis but will also assist in directing care more efficiently, including more frequent cardiorespiratory monitoring and prophylactic treatments. The aim of this study was to identify the responsible gene in a five-generation Chinese Han pedigree with autosomal recessive LGMD. Exome sequencing was conducted and a novel mutation c.107788T>C (p.W35930R) in the titin gene (TTN) was identified. The mutation co-segregated with the disorder in the family and was absent in normal controls. Our discovery broadens the mutation spectrum of the TTN gene associated with LGMD2J.
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