Myotonia congenita in a Labrador Retriever with truncated CLCN1
نویسندگان
چکیده
منابع مشابه
A Novel Mutation in CLCN1 Associated with Feline Myotonia Congenita
Myotonia congenita (MC) is a skeletal muscle channelopathy characterized by inability of the muscle to relax following voluntary contraction. Worldwide population prevalence in humans is 1:100,000. Studies in mice, dogs, humans and goats confirmed myotonia associated with functional defects in chloride channels and mutations in a skeletal muscle chloride channel (CLCN1). CLCN1 encodes for the m...
متن کاملNovel CLCN1 Mutations and Clinical Features of Korean Patients with Myotonia Congenita
Myotonia congenita (MC) is a form of nondystrophic myotonia caused by a mutation of CLCN1, which encodes human skeletal muscle chloride channel (CLC-1). We performed sequence analysis of all coding regions of CLCN1 in patients clinically diagnosed with MC, and identified 10 unrelated Korean patients harboring mutations. Detailed clinical analysis was performed in these patients to identify thei...
متن کاملA CLCN1 mutation in dominant myotonia congenita impairs the increment of chloride conductance during repetitive depolarization.
Myotonia congenita is caused by mutation of the CLCN1 gene, which encodes the human skeletal muscle chloride channel (ClC-1). The ClC-1 protein is a dimer comprised of two identical subunits each incorporating its own separate pore. However, the precise pathophysiological mechanism underlying the abnormal ClC-1 channel gating in some mutants is not fully understood. We characterized a ClC-1 mut...
متن کاملA Novel Missense Mutation in CLCN1 Gene in a Family with Autosomal Recessive Congenital Myotonia
Congenital recessive myotonia is a rare genetic disorder caused by mutations in CLCN1, which codes for the main skeletal muscle chloride channel ClC-1. More than 120 mutations have been found in this gene. The main feature of this disorder is muscle membrane hyperexcitability. Here, we report a 59-year male patient suffering from congenital myotonia. He had transient generalized myotonia, which...
متن کاملNovel Mutations in the CLCN1 Gene of Myotonia Congenita: 2 Case Reports
INTRODUCTION Myotonia Congenita is an inherited myotonia that is due to a mutation in the skeletal muscle chloride channel CLCN1. These mutations lead to reduced sarcolemmal chloride conductance, causing delayed muscle relaxation that is evident as clinical and electrical myotonia. METHODS We report the clinical presentations of two individuals with Myotonia Congenita (MC). RESULTS Patient ...
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ژورنال
عنوان ژورنال: Neuromuscular Disorders
سال: 2018
ISSN: 0960-8966
DOI: 10.1016/j.nmd.2018.05.002