Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102463
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dc.contributor.authorBalestrini, S.en
dc.contributor.authorMilh, M.en
dc.contributor.authorCastiglioni, C.en
dc.contributor.authorLüthy, K.en
dc.contributor.authorFinelli, M.en
dc.contributor.authorVerstreken, P.en
dc.contributor.authorCardon, A.en
dc.contributor.authorStražišar, B.en
dc.contributor.authorHolder, J.en
dc.contributor.authorLesca, G.en
dc.contributor.authorMancardi, M.en
dc.contributor.authorPoulat, A.en
dc.contributor.authorRepetto, G.en
dc.contributor.authorBanka, S.en
dc.contributor.authorBilo, L.en
dc.contributor.authorBirkeland, L.en
dc.contributor.authorBosch, F.en
dc.contributor.authorBrockmann, K.en
dc.contributor.authorCross, J.en
dc.contributor.authorDoummar, D.en
dc.contributor.authoret al.en
dc.date.issued2016en
dc.identifier.citationNeurology, 2016; 87(1):77-85en
dc.identifier.issn0028-3878en
dc.identifier.issn1526-632Xen
dc.identifier.urihttp://hdl.handle.net/2440/102463-
dc.description.abstractObjective: To evaluate the phenotypic spectrum associated with mutations in TBC1D24. Methods: We acquired new clinical, EEG, and neuroimaging data of 11 previously unreported and 37 published patients. TBC1D24 mutations, identified through various sequencing methods, can be found online (http://lovd.nl/TBC1D24). Results: Forty-eight patients were included (28 men, 20 women, average age 21 years) from 30 independent families. Eighteen patients (38%) had myoclonic epilepsies. The other patients carried diagnoses of focal (25%), multifocal (2%), generalized (4%), and unclassified epilepsy (6%), and early-onset epileptic encephalopathy (25%). Most patients had drug-resistant epilepsy. We detail EEG, neuroimaging, developmental, and cognitive features, treatment responsiveness, and physical examination. In silico evaluation revealed 7 different highly conserved motifs, with the most common pathogenic mutation located in the first. Neuronal outgrowth assays showed that some TBC1D24 mutations, associated with the most severe TBC1D24-associated disorders, are not necessarily the most disruptive to this gene function. Conclusions: TBC1D24-related epilepsy syndromes show marked phenotypic pleiotropy, with multisystem involvement and severity spectrum ranging from isolated deafness (not studied here), benign myoclonic epilepsy restricted to childhood with complete seizure control and normal intellect, to early-onset epileptic encephalopathy with severe developmental delay and early death. There is no distinct correlation with mutation type or location yet, but patterns are emerging. Given the phenotypic breadth observed, TBC1D24 mutation screening is indicated in a wide variety of epilepsies. A TBC1D24 consortium was formed to develop further research on this gene and its associated phenotypes.en
dc.description.statementofresponsibilitySimona Balestrini, Mark Corbett and Jozef Geczen
dc.language.isoenen
dc.publisherAmerican Academy of Neurologyen
dc.rights© 2016 American Academy of Neurology. Unauthorized reproduction of this article is prohibited. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.source.urihttp://www.neurology.org/content/87/1/77en
dc.subjectBrain; Neurites; Cells, Cultured; Animals; Humans; Mice; Epilepsy; Carrier Proteins; Electroencephalography; Physical Examination; Cohort Studies; Cell Enlargement; Mutation; Child; Child, Preschool; Infant; Female; Male; Young Adult; Genetic Association Studiesen
dc.titleTBC1D24 genotype-phenotype correlationen
dc.typeJournal articleen
dc.identifier.rmid0030051323en
dc.identifier.doi10.1212/WNL.0000000000002807en
dc.relation.granthttp://purl.org/au-research/grants/nhmrc/628952en
dc.relation.granthttp://purl.org/au-research/grants/nhmrc/1041920en
dc.identifier.pubid259955-
pubs.library.collectionMedicine publicationsen
pubs.library.teamDS11en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidCorbett, M. [0000-0001-9298-3072]en
dc.identifier.orcidGecz, J. [0000-0002-7884-6861]en
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