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Application of rare variant transmission disequilibrium tests to epileptic encephalopathy trio sequence data
Journal article   Open access   Peer reviewed

Application of rare variant transmission disequilibrium tests to epileptic encephalopathy trio sequence data

Andrew S. Allen, Samuel F. Berkovic, Joshua Bridgers, Patrick Cossette, Dennis Dlugos, Michael P. Epstein, Tracy Glauser, David B. Goldstein, Erin L. Heinzen, Yu Jiang, …
European journal of human genetics : EJHG, v 25(7), pp 894-899
01 Jun 2017
PMID: 28513609
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://doi.org/10.1038/ejhg.2017.61View
Published, Version of Record (VoR) Open

Abstract

Biochemistry & Molecular Biology Genetics & Heredity Life Sciences & Biomedicine Science & Technology
The classic epileptic encephalopathies, including infantile spasms (IS) and Lennox-Gastaut syndrome (LGS), are severe seizure disorders that usually arise sporadically. De novo variants in genes mainly encoding ion channel and synaptic proteins have been found to account for over 15% of patients with IS or LGS. The contribution of autosomal recessive genetic variation, however, is less well understood. We implemented a rare variant transmission disequilibrium test (TDT) to search for autosomal recessive epileptic encephalopathy genes in a cohort of 320 outbred patient-parent trios that were generally prescreened for rare metabolic disorders. In the current sample, our rare variant transmission disequilibrium test did not identify individual genes with significantly distorted transmission over expectation after correcting for the multiple tests. While the rare variant transmission disequilibrium test did not find evidence of a role for individual autosomal recessive genes, our current sample is insufficiently powered to assess the overall role of autosomal recessive genotypes in an outbred epileptic encephalopathy population.

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Collaboration types
Domestic collaboration
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Web of Science research areas
Biochemistry & Molecular Biology
Genetics & Heredity
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