Mutations in SCN3A cause early infantile epileptic encephalopathy

Early infantile epileptic encephalopathy

Key-words Disease name / synonyms Definition / diagnostic criteria Differential diagnosis Etiology Clinical description Diagnostic methods Epidemiology Genetic counselling Treatment Unresolved questions References Abstract Early infantile epileptic encephalopathy (EIEE) or Ohtahara syndrome is the earliest form of agedependent encephalopathies, which include also West syndrome and Lennox-Gastau...

Early Infantile Epileptic Encephalopathy Panel

12/17 Clinical Features and Molecular Genetics: Early infantile epileptic encephalopathy (EIEE), also known as Ohtahara syndrome, is a severe form of epilepsy characterized by frequent tonic spasms with onset in the first months of life. EEG reveals suppression-burst patterns, characterized by highvoltage bursts alternating with almost flat suppression phases. Seizures are medically intractable...

GABRB3 mutations: a new and emerging cause of early infantile epileptic encephalopathy

The gamma-aminobutyric acid type A receptor β3 gene (GABRB3) encodes the β3-subunit of the gamma-aminobutyric acid type A (GABAA ) receptor, which mediates inhibitory signalling within the central nervous system. Recently, GABRB3 mutations have been identified in a few patients with infantile spasms and Lennox-Gastaut syndrome. We report the clinical and electrographic features of a novel case ...

CDKL5 Encephalopathy: A Rare Cause of Infantile Epileptic Encephalopathy.

Recessive twinkle mutations cause severe epileptic encephalopathy.

The C10orf2 gene encodes the mitochondrial DNA helicase Twinkle, which is one of the proteins important for mitochondrial DNA maintenance. Dominant mutations cause multiple mitochondrial DNA deletions and progressive external ophthalmoplegia, but recent findings associate recessive mutations with mitochondrial DNA depletion and encephalopathy or hepatoencephalopathy. The latter clinical phenoty...