Collagen VI deficiency induces early onset myopathy in the mouse: an animal model for Bethlem myopathy
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Collagen VI deficiency induces early onset myopathy in the mouse: an animal model for Bethlem myopathy.
To gain insight into the function of type VI collagen, the col6a1 gene was inactivated by targeted gene disruption in the mouse. The homozygous mutants lacked collagen VI in the tissues and showed histological features of myopathy such as fiber necrosis and phagocytosis and a pronounced variation in the fiber diameter. Muscles also showed signs of stimulated regeneration of fibers. Necrotic fib...
متن کاملCollagen VI-related myopathy
Synonyms Spectrum of phenotypes: Mild: Bethlem myopathy/ benign congenital muscular dystrophy Intermediate: Limb-girdle muscular dystrophy; myosclerosis myopathy Severe: Ullrich myopathy/ congenital atonic sclerotic muscular dystrophy First described by Ullrich in 1930 and Bethlem in 1976 respectively [1]. Caused by mutations in any of the 3 genes which code for collagen type VI synthesis, COL6...
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To cite: Morrow JM, Pitceathly RDS, Quinlivan RM, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013008596 DESCRIPTION A 44-year-old man presented with progressive limb girdle weakness from 10 years of age. The inheritance pattern was autosomal dominant; two siblings, his mother and maternal grandfather were similarly affected. On examination there was an...
متن کاملGenetic localization of Bethlem myopathy.
Bethlem myopathy is a rare autosomal dominant myopathy characterized by slowly progressive limb-girdle muscular atrophy and weakness, and contractures of multiple joints. To identify the genetic localization we used highly polymorphic microsatellite markers in a genome-wide search in six Dutch families. After excluding genetic linkage with 52 markers distributed evenly over the autosomes, signi...
متن کاملCardiac and pulmonary investigations in Bethlem myopathy.
BACKGROUND Bethlem myopathy is considered a relatively mild neuromuscular disorder without significant cardiac and respiratory involvement. OBJECTIVE To investigate cardiac and respiratory involvement in Bethlem myopathy. DESIGN Cross-sectional study. SETTING University hospitals. Patients Fifty patients with Bethlem myopathy from 26 families. INTERVENTIONS Cardiac examinations, includi...
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ژورنال
عنوان ژورنال: Human Molecular Genetics
سال: 1998
ISSN: 1460-2083
DOI: 10.1093/hmg/7.13.2135