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find Author "ZHENGJinou" 1 results
  • Molecular characteristics of SCN1A mutation causing partial epilepsy with febrile seizures plus

    ObjectiveTo explore the molecular characteristics of partial epilepsy with febrile seizures plus(PEFS+). MethodsWe systematically reviewed all SCN1A mutation-related publications that published between Jan.2000 and Dec.2014 on Pubmed and established a database of SCN1A mutations (http://www.gzneurosci.com/SCN1Adatabase/). The characteristics of mutations that cause PEFS+ were analyzed and compared with that of severe myoclonic epilepsy in infancy (SMEI). ResultsThe database included 1, 257 SCN1A mutations, which identified from 1, 727 unrelated cases. In which there were 30 mutations, from 32 unrelated cases, were associated with PEFS+. 76.7% (23/30) mutations were missense, of which 47.8% (11/23) were located on pore region. Significant difference in the percentage of truncation mutation was observed between PEFS+ and SMEI (P < 0.05). There was no significant difference in the percentage of missense mutation that located on the pore region between PEFS+ and SMEI; but the differ significantly in D-value of the missense mutations, which quantified the alteration of amino acid(P=0.042, rank sum test). ConclusionsPEFS+, which distinguishes from GEFS+ and SMEI in clinical and molecular characteristics, is a special phenotype of epilepsy that is associated with SCN1A mutations.

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