نتایج جستجو برای: scn1a mutations

تعداد نتایج: 173129  

Journal: :Epilepsia 2007
Pasquale Striano Maria Margherita Mancardi Roberta Biancheri Francesca Madia Elena Gennaro Roberta Paravidino Francesca Beccaria Giuseppe Capovilla Bernardo Dalla Bernardina Francesca Darra Maurizio Elia Lucio Giordano Giuseppe Gobbi Tiziana Granata Francesca Ragona Renzo Guerrini Carla Marini Davide Mei Francesca Longaretti Antonino Romeo Laura Siri Nicola Specchio Federico Vigevano Salvatore Striano Fabio Tortora Andrea Rossi Carlo Minetti Charlotte Dravet Roberto Gaggero Federico Zara

INTRODUCTION To determine the occurrence of neuroradiological abnormalities and to perform genotype-phenotype correlations in severe myoclonic epilepsy of infancy (SMEI, Dravet syndrome). PATIENTS AND METHODS Alpha-subunit type A of voltage-gated sodium channel (SCN1A) mutational screening was performed by denaturing high-performance liquid chromatography (DHPLC) and multiplex ligation probe ...

2001
Alexi K. Alekov Masmudur Rahman Nenad Mitrovic Frank Lehmann-Horn Holger Lerche

Generalized epilepsy with febrile seizures-plus (GEFS) is a benign Mendelian syndrome characterized by childhood-onset febrile and afebrile seizures. Three point mutations within two voltage-gated sodium channel genes have been identi®ed so far: in GEFS type 1 a mutation in the b1-subunit gene SCN1B, and in GEFS type 2 two mutations within the neuronal a-subunit gene SCN1A. Functional expressio...

Journal: :The European journal of neuroscience 2001
A K Alekov M M Rahman N Mitrovic F Lehmann-Horn H Lerche

Generalized epilepsy with febrile seizures-plus (GEFS+) is a benign Mendelian syndrome characterized by childhood-onset febrile and afebrile seizures. Three point mutations within two voltage-gated sodium channel genes have been identified so far: in GEFS+ type 1 a mutation in the beta1-subunit gene SCN1B, and in GEFS+ type 2 two mutations within the neuronal alpha-subunit gene SCN1A. Functiona...

2016
Lawrence J. Jennings Dawn Kirschmann

Investigators from the EuroEPINOMICS rare epilepsy syndromes Dravet working group performed whole-exome sequencing on 31 trios that had been reported negative for SCN1A mutations by Sanger sequencing.

Journal: :Journal of neurophysiology 2014
Ryan J Schutte Soleil S Schutte Jacqueline Algara Eden V Barragan Jeff Gilligan Cynthia Staber Yiannis A Savva Martin A Smith Robert Reenan Diane K O'Dowd

Hundreds of mutations in the SCN1A sodium channel gene confer a wide spectrum of epileptic disorders, requiring efficient model systems to study cellular mechanisms and identify potential therapeutic targets. We recently demonstrated that Drosophila knock-in flies carrying the K1270T SCN1A mutation known to cause a form of genetic epilepsy with febrile seizures plus (GEFS+) exhibit a heat-induc...

Journal: :Epilepsia 2010
Wei-Ping Liao Yi-Wu Shi Yue-Sheng Long Yang Zeng Tian Li Mei-Juan Yu Tao Su Ping Deng Zhi-Gang Lei Shu-Jun Xu Wei-Yi Deng Xiao-Rong Liu Wei-Wen Sun Yong-Hong Yi Zao C Xu Shumin Duan

PURPOSE Generalized epilepsy with febrile seizures plus (GEFS+) and severe myoclonic epilepsy in infancy (SMEI) are associated with sodium channel α-subunit type-1 gene (SCN1A) mutations. Febrile seizures and partial seizures occur in both GEFS+ and SMEI; sporadic onset and seizure aggravation by antiepileptic drugs (AEDs) are features of SMEI. We thus searched gene mutations in isolated cases ...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2006
Kristopher M Kahlig Sunita N Misra Alfred L George

Mutations in SCN1A (encoding the neuronal voltage-gated sodium channel alpha1 subunit, Na(V)1.1, or SCN1A) are associated with genetic epilepsy syndromes including generalized epilepsy with febrile seizures plus (GEFS+) and severe myoclonic epilepsy of infancy. Here, we present the formulation and use of a computational model for SCN1A to elucidate molecular mechanisms underlying the increased ...

Journal: :Acta medica Okayama 2012
Mari Akiyama Katsuhiro Kobayashi Yoko Ohtsuka

Dravet syndrome (DS), or severe myoclonic epilepsy in infancy, is one of the most severe types of genetic epilepsy. It is characterized by the initial occurrence of febrile or afebrile seizures that often evolve into status epilepticus in infants with normal development, and by the subsequent appearance of myoclonic and/or atypical absence seizures as well as complex partial seizures. The key f...

2015
Yvonne W. Wu Sharon S. McDaniel Eileen M. Walsh Sherian Xu Li Michael W. Kuzniewicz

OBJECTIVE: De novo mutations of the gene sodium channel 1a (SCN1A) are the major cause of Dravet syndrome, an infantile epileptic encephalopathy. US incidence of DS has been estimated at 1 in 40 000, but no US epidemiologic studies have been performed since the advent of genetic testing. METHODS: In a retrospective, population-based cohort of all infants born at Kaiser Permanente Northern Calif...

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