Genetic heterogeneity in infantile spasms.

Abstract:

:Infantile spasms (IS) is a developmental and epileptic encephalopathy with heterogeneous etiologies including many genetic causes. Genetic studies have identified pathogenic variants in over 30 genes as causes of IS. Many of these genetic causes are extremely rare, with only one reported incidence in an individual with IS. To better understand the genetic landscape of IS, we used targeted sequencing to screen 42 candidate IS genes and 53 established developmental and epileptic encephalopathy genes in 92 individual with IS. We identified a genetic diagnosis for 7.6% of our cohort, including pathogenic variants in KCNB1 (n = 2), GNAO1 (n = 1), STXBP1 (n = 1), SLC35A2 (n = 1), TBL1XR1 (n = 1), and KIF1A (n = 1). Our data emphasize the genetic heterogeneity of IS and will inform the diagnosis and management of individuals with this devastating disorder.

journal_name

Epilepsy Res

journal_title

Epilepsy research

authors

Muir AM,Myers CT,Nguyen NT,Saykally J,Craiu D,De Jonghe P,Helbig I,Hoffman-Zacharska D,Guerrini R,Lehesjoki AE,Marini C,Møller RS,Serratosa J,Štěrbová K,Striano P,von Spiczak S,Weckhuysen S,Mefford HC,EuroEPINOMICS-RE

doi

10.1016/j.eplepsyres.2019.106181

subject

Has Abstract

pub_date

2019-10-01 00:00:00

pages

106181

eissn

0920-1211

issn

1872-6844

pii

S0920-1211(19)30337-7

journal_volume

156

pub_type

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