File(s) under permanent embargo
Evaluation of GLUT1 variation in non-acquired focal epilepsy
journal contributionposted on 2017-07-01, 00:00 authored by A Peeraer, J A Damiano, Susannah Bellows, I E Scheffer, S F Berkovic, S A Mullen, M S Hildebrand
Brain glucose transport is dependent on glucose transporter 1 (GLUT1), encoded by the solute carrier family 2 member 1 (SLC2A1) gene. Mutations in SLC2A1 cause GLUT1 deficiency which is characterized by a broad spectrum of neurological phenotypes including generalized epilepsy, motor disorders, developmental delay and microcephaly. Recent case reports suggest SLC2A1 mutations can contribute to non-acquired focal epilepsy (NAFE) but interrogation of a large patient cohort has not been reported. We studied 200 patients with NAFE (126 with temporal lobe epilepsy) comprising 104 females and 96 males with a mean age of onset of 18 years. Polymerase chain reaction (PCR) and Sanger sequencing was performed to detect variants in all 10 coding exons and splice site regions of the SLC2A1 gene. We did not detect any pathogenic mutations in SLC2A1 in this cohort. Our data suggests that the frequency of GLUT1 mutations in NAFE is low. Limitations of this study include the mean age of onset and cohort size. Future research should focus on subpopulations of focal epilepsy with lower age of seizure onset particularly with co-existent movement disorders in which GLUT1 mutations may play a more important role.
Pagination54 - 57
LocationAmsterdam, The Netherlands
Publication classificationC Journal article; C1.1 Refereed article in a scholarly journal
Copyright notice2017, Elsevier B.V.
CategoriesNo categories selected
GLUT1 deficiencySLC2A1 geneglucose transporter 1non-acquired focal epilepsyAdolescentAdultAgedAged, 80 and overCohort StudiesDNA Mutational AnalysisElectroencephalographyEpilepsies, PartialFemaleGenetic Predisposition to DiseaseGlucose Transporter Type 1HumansMagnetic Resonance ImagingMaleMiddle AgedMutationSeverity of Illness IndexYoung AdultScience & TechnologyLife Sciences & BiomedicineClinical NeurologyNeurosciences & NeurologyDEFICIENCY SYNDROMEGLUCOSE-TRANSPORTER-1 DEFICIENCYONSETPHENOTYPESMUTATIONS