نتایج جستجو برای: scn1a mutations

تعداد نتایج: 173129  

2015
Anna Ka-Yee Kwong Alvin Chi-Chung Ho Cheuk-Wing Fung Virginia Chun-Nei Wong

Epileptic Encephalopathy (EE) is a heterogeneous condition in which cognitive, sensory and/or motor functions deteriorate as a consequence of epileptic activity, which consists of frequent seizures and/or major interictal paroxysmal activity. There are various causes of EE and they may occur at any age in early childhood. Genetic mutations have been identified to contribute to an increasing num...

Journal: :Seizure 2005
N. Pineda-Trujillo J. Carrizosa W. Cornejo W. Arias C. Franco D. Cabrera G. Bedoya A. Ruíz-Linares

Generalized epilepsy with febrile seizures plus (GEFS+) is an inherited epileptic syndrome with a marked clinical and genetic heterogeneity. Here we report the molecular characterization of a large pedigree with a severe clinical form of GEFS+. Genetic linkage analysis implied the involvement of the FEB3 in the disease phenotype of this family (parametric two-point lod-score of 2.2). Sequencing...

2009
Nanda A. Singh Chris Pappas E. Jill Dahle Lieve R. F. Claes Timothy H. Pruess Peter De Jonghe Joel Thompson Missy Dixon Christina Gurnett Andy Peiffer H. Steve White Francis Filloux Mark F. Leppert

A follow-up study of a large Utah family with significant linkage to chromosome 2q24 led us to identify a new febrile seizure (FS) gene, SCN9A encoding Na(v)1.7. In 21 affected members, we uncovered a potential mutation in a highly conserved amino acid, p.N641Y, in the large cytoplasmic loop between transmembrane domains I and II that was absent from 586 ethnically matched population control ch...

2017
Nicole A. Hawkins Lyndsey L. Anderson Tracy S. Gertler Linda Laux Alfred L. George Jennifer A. Kearney

OBJECTIVE Epilepsy is a common neurological disorder that affects 1% of the population. Approximately, 30% of individuals with epilepsy are refractory to treatment, highlighting the need for novel therapies. Conventional anticonvulsant screening relies predominantly on induced seizure models. However, these models may not be etiologically relevant for genetic epilepsies. Mutations in SCN1A are ...

2017
Yun-Jeong Lee Mi-Sun Yum Min-Jee Kim Woo-Hyun Shim Hee Mang Yoon Il Han Yoo Jiwon Lee Byung Chan Lim Ki Joong Kim Tae-Sung Ko

OBJECTIVE Mutations in SCN1A gene encoding the alpha 1 subunit of the voltage gated sodium channel are associated with several epilepsy syndromes including genetic epilepsy with febrile seizures plus (GEFS +) and severe myoclonic epilepsy of infancy (SMEI). However, in most patients with SCN1A mutation, brain imaging has reported normal or non-specific findings including cerebral or cerebellar ...

Journal: :Brain : a journal of neurology 2003
Ingrid E Scheffer

In 1978, Charlotte Dravet described thècryptogenic' epilepsy syndrome severe myoclonic epilepsy of infancy (SMEI) (Dravet, 1978). This severe generalized epileptic encephalopathy begins at around 6 months of age with febrile hemiclonic or generalized status epilepticus. Hemiclonic status typically recurs involving each side independently. After 1 year of age, other seizure types appear includin...

Journal: :Journal of Neurology & Stroke 2020

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