Abstract | OBJECTIVE: We describe 2 additional patients with early-onset epilepsy with a de novo FGF12 mutation. METHODS: Whole-exome sequencing was performed in 2 unrelated patients with early-onset epilepsy and their unaffected parents. Genetic variants were assessed by comparative trio analysis. Clinical evolution, EEG, and neuroimaging are described. The phenotype and response to treatment was reviewed and compared to affected siblings in the original report. RESULTS: CONCLUSIONS: The identification of a recurrent de novo mutation in 2 additional unrelated probands with early-onset epilepsy supports the role of FGF12 p.R52H in disease pathogenesis. Affected carriers presented with similar early clinical phenotypes; however, this report expands the phenotype associated with this mutation which contrasts with the progressive course and early mortality of the siblings in the original report.
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Authors | Ilaria Guella, Linda Huh, Marna B McKenzie, Eric B Toyota, E Martina Bebin, Michelle L Thompson, Gregory M Cooper, Daniel M Evans, Sarah E Buerki, Shelin Adam, Margot I Van Allen, Tanya N Nelson, Mary B Connolly, Matthew J Farrer, Michelle Demos |
Journal | Neurology. Genetics
(Neurol Genet)
Vol. 2
Issue 6
Pg. e120
(Dec 2016)
ISSN: 2376-7839 [Print] United States |
PMID | 27872899
(Publication Type: Journal Article)
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