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Copy number variant analysis from exome data in 349 patients with epileptic encephalopathy
Journal article   Open access   Peer reviewed

Copy number variant analysis from exome data in 349 patients with epileptic encephalopathy

Andrew S. Allen, Samuel F. Berkovic, Bradley P. Coe, Joseph Cook, Patrick Cossette, Norman Delanty, Dennis Dlugos, Evan E. Eichler, Michael P. Epstein, Tracy Glauser, …
Annals of neurology, v 78(2), pp 323-328
Aug 2015
PMID: 26068938
url
https://doi.org/10.1002/ana.24457View
Published, Version of Record (VoR) Open

Abstract

Brief Communication Brief Communications
Infantile spasms (IS) and Lennox–Gastaut syndrome (LGS) are epileptic encephalopathies characterized by early onset, intractable seizures, and poor developmental outcomes. De novo sequence mutations and copy number variants (CNVs) are causative in a subset of cases. We used exome sequence data in 349 trios with IS or LGS to identify putative de novo CNVs. We confirm 18 de novo CNVs in 17 patients (4.8%), 10 of which are likely pathogenic, giving a firm genetic diagnosis for 2.9% of patients. Confirmation of exome‐predicted CNVs by array‐based methods is still required due to false‐positive rates of prediction algorithms. Our exome‐based results are consistent with recent array‐based studies in similar cohorts and highlight novel candidate genes for IS and LGS. Ann Neurol 2015;78:323–328

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Web of Science research areas
Clinical Neurology
Neurosciences
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