SCN4A Pore Mutation Pathogenetically Contributes to Autosomal Dominant Essential Tremor and May Increase Susceptibility to Epilepsy

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SCN4A pore mutation pathogenetically contributes to autosomal dominant essential tremor and may increase susceptibility to epilepsy.

Essential tremor (ET) is the most prevalent movement disorder, affecting millions of people in the USA. Although a positive family history is one of the most important risk factors for ET, the genetic causes of ET remain unknown. In an attempt to identify genetic causes for ET, we performed whole-exome sequencing analyses in a large Spanish family with ET, in which two patients also developed e...

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Autosomal Dominant Cortical Tremor, Myoclonus, and Epilepsy Syndrome mimicking Juvenile Myoclonic Epilepsy.

INTRODUCTION Autosomal dominant cortical tremor, myoclonus, and epilepsy (ADCME) syndrome is a genetically heterogeneous and under-recognized disease characterized by tremulous movements mimicking essential tremor, myoclonus, and rare generalized tonic-clonic seizures. Here we described the clinical and electrophysiological features of three siblings with ADCME syndrome mimicking juvenile myocl...

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Proteins linked to autosomal dominant and autosomal recessive disorders harbor characteristic rare missense mutation distribution patterns.

The role of rare missense variants in disease causation remains difficult to interpret. We explore whether the clustering pattern of rare missense variants (MAF < 0.01) in a protein is associated with mode of inheritance. Mutations in genes associated with autosomal dominant (AD) conditions are known to result in either loss or gain of function, whereas mutations in genes associated with autoso...

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Voltage-gated potassium channel KCNV2 (Kv8.2) contributes to epilepsy susceptibility.

Mutations in voltage-gated ion channels are responsible for several types of epilepsy. Genetic epilepsies often exhibit variable severity in individuals with the same mutation, which may be due to variation in genetic modifiers. The Scn2a(Q54) transgenic mouse model has a sodium channel mutation and exhibits epilepsy with strain-dependent severity. We previously mapped modifier loci that influe...

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Autosomal recessive epilepsy associated with contactin 2 mutation is different from familial cortical tremor, myoclonus and epilepsy.

Sir, We would like to thank Striano et al. (2013) for their remarks on our paper and would like to comment on some of the mentioned points. We agree that it is important to pay close attention to the correct classification of new syndromes such as familial cortical myoclonic tremor with epilepsy (FCMTE) as any inconsistencies will hamper the discovery of the underlying pathophysiology. Summing ...

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ژورنال

عنوان ژورنال: Biophysical Journal

سال: 2016

ISSN: 0006-3495

DOI: 10.1016/j.bpj.2015.11.657