Observations on a case of myotonia paradoxa.

A 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...

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A variety of paramyotonia congenita.

Paramyotonia congenita was first described by Eulenberg (1886). It is a rare, hereditary disorder of muscle in which severe loss of power is induced by degrees of cooling which are insufficient to affect normal muscle. Myotonia also appears on cooling. However, the paralysis produced by cooling distinguishes paramyotonia from Thomsen's disease. The weakness and myotonia can easily be produced u...

گزارش نخستین مورد کندرودیستروفی میوتونیبیمارستان لقمان حکیم

  Myotonia chondrodystrophia, which is easier to diagnose than describe, is a rare congenital disorder inherited as an autosomal recessive. Myotonia is accompanied by chondrodystrophia and epiphyseal dysplasia. Affected individuals are presenting with growth retardation, pectus carinatum, sadly appearance of face, blepharophimosis, ear and dental abnormalities, puckered lips, and hypertrophic m...

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