Early infantile epileptic encephalopathy related to NECAP1: Clinical delineation of the disease and review.
Autor: | Chouery E; Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon., Mehawej C; Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon., Sabbagh S; Department of Pediatrics, Hôtel Dieu de France Hospital, Beirut, Lebanon., Bleik J; Department of Ophthalmology, Lebanese American University Medical Center, Beirut, Lebanon., Megarbane A; Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon.; Jérôme Lejeune Institute, Paris, France. |
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Jazyk: | angličtina |
Zdroj: | European journal of neurology [Eur J Neurol] 2022 Aug; Vol. 29 (8), pp. 2486-2492. Date of Electronic Publication: 2022 Jun 09. |
DOI: | 10.1111/ene.15424 |
Abstrakt: | Background and Purpose: Epileptic encephalopathy (EE) refers to a heterogeneous group of epilepsy syndromes characterized by seizures as well as encephalopathies, leading to cognitive and behavioral disturbances. These conditions vary in their age at onset, their severity, and their electroencephalographic patterns. Whereas genetic factors are involved in approximately 40% of all epilepsy cases, they contribute to 80% of early infantile EEs (EIEEs), with approximately 125 genes previously linked to this disease. Methods: Whole exome sequencing (WES) was performed in a 9-month-old Lebanese girl presenting with EIEE. Results: WES enabled the detection of a homozygous missense mutation in the NECAP1 gene (NM_015509.3: p.Glu8Lys) in the proband. Conclusions: Here, we report the first homozygous missense mutation in the NECAP1 gene in a 9-month-old girl presenting with EIEE. Our findings allow a better characterization of the NECAP1-linked disease and enable broadening its clinical spectrum by including, in addition to EIEE, severe generalized hypotonia, poor feeding, developmental delay, severe microcephaly, delayed myelination, abnormalities of the corpus callosum, and eye abnormalities. (© 2022 European Academy of Neurology.) |
Databáze: | MEDLINE |
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