نتایج جستجو برای: col6a1
تعداد نتایج: 128 فیلتر نتایج به سال:
Collagen VI myopathies are genetic disorders caused by mutations in collagen 6 A1, A2 and A3 genes, ranging from the severe Ullrich congenital muscular dystrophy to the milder Bethlem myopathy, which is recapitulated by collagen-VI-null (Col6a1(-/-)) mice. Abnormalities in mitochondria and autophagic pathway have been proposed as pathogenic causes of collagen VI myopathies, but the link between...
This study identifies metabolic and protein phenotypic alterations in gastrocnemius, tibialis anterior and diaphragm muscles of Col6a1(-/-) mice, a model of human collagen VI myopathies. All three muscles of Col6a1(-/-) mice show some common changes in proteins involved in metabolism, resulting in decreased glycolysis and in changes of the TCA cycle fluxes. These changes lead to a different fat...
Abstract Background Collagen VI related myopathies are congenital diseases of variable phenotype. The severe phenotype is referred to as Ullrich muscular dystrophy. In this study, we describe analoguos clinical signs and histopathological alterations in Landseer dogs. Materials We collected data from two affected dogs investigated the neuromuscular changes five different litters with immunohist...
A 32-year-old woman and a 50-year-old man with clinically typical Bethlem myopathy developed seemingly spontaneous keloids on their shoulder region (figure). The patients did not recall any significant trauma to the skin of this region. Bethlem myopathy (MIM #158810) is caused by dominant and recessive mutations in the collagen VI genes: COL6A1, COL6A2, and COL6A3. Skin manifestations include h...
Ullrich congenital muscular dystrophy (UCMD) is characterized by congenital weakness, proximal joint contractures, and hyperlaxity of distal joints. UCMD is basically due to a defect in extra cellular matrix protein, collagen type VI. A 37-year-old woman who cannot walk independently visited our outpatient clinic. She had orthopedic deformities (scoliosis, joint contractures, and distal joint h...
The collagen type VI-related disorders are nowadays considered to be a continuum of overlapping phenotypes with Bethlem myopathy at the mild end and Ullrich congenital muscular dystrophy (UCMD) at the severe end. In between these phenotypes there are collagen type VI-related limb-girdle muscular dystrophy and myosclerosis myopathy. Most cases of Bethlem myopathy have autosomal dominant inherita...
Mutations in the genes encoding collagen VI (COL6A1, COL6A2, and COL6A3) cause Bethlem myopathy (BM) and Ullrich congenital muscular dystrophy (UCMD), two conditions which were previously believed to be completely separate entities. BM is a relatively mild dominantly inherited disorder characterised by proximal weakness and distal joint contractures. UCMD was originally described as an autosoma...
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