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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-43377

Kasperaviciūte, D; Catarino, C B; Heinzen, E L; Depondt, C; Cavalleri, G L; Caboclo, L O; Tate, S K; Jamnadas-Khoda, J; Chinthapalli, K; Clayton, L M S; Shianna, K V; Radtke, R A; Mikati, M A; Gallentine, W B; Husain, A M; Alhusaini, S; Leppert, D; Middleton, L T; Gibson, R A; Johnson, M R; Matthews, P M; Hosford, D; Heuser, K; Amos, L; Ortega, M; Zumsteg, D; Wieser, H G; Steinhoff, B J; Krämer, G; Hansen, J; Dorn, T; Kantanen, A M; Gjerstad, L; Peuralinna, T; Hernandez, D G; Eriksson, K J; Kälviäinen, R K; Doherty, C P; Wood, N W; Pandolfo, M; Duncan, J S; Sander, J W; Delanty, N; Goldstein, D B; Sisodiya, S M (2010). Common genetic variation and susceptibility to partial epilepsies: a genome-wide association study. Brain: A Journal of Neurology, 133(Pt 7):2136-2147.

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Partial epilepsies have a substantial heritability. However, the actual genetic causes are largely unknown. In contrast to many other common diseases for which genetic association-studies have successfully revealed common variants associated with disease risk, the role of common variation in partial epilepsies has not yet been explored in a well-powered study. We undertook a genome-wide association-study to identify common variants which influence risk for epilepsy shared amongst partial epilepsy syndromes, in 3445 patients and 6935 controls of European ancestry. We did not identify any genome-wide significant association. A few single nucleotide polymorphisms may warrant further investigation. We exclude common genetic variants with effect sizes above a modest 1.3 odds ratio for a single variant as contributors to genetic susceptibility shared across the partial epilepsies. We show that, at best, common genetic variation can only have a modest role in predisposition to the partial epilepsies when considered across syndromes in Europeans. The genetic architecture of the partial epilepsies is likely to be very complex, reflecting genotypic and phenotypic heterogeneity. Larger meta-analyses are required to identify variants of smaller effect sizes (odds ratio<1.3) or syndrome-specific variants. Further, our results suggest research efforts should also be directed towards identifying the multiple rare variants likely to account for at least part of the heritability of the partial epilepsies. Data emerging from genome-wide association-studies will be valuable during the next serious challenge of interpreting all the genetic variation emerging from whole-genome sequencing studies.


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Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurology
Dewey Decimal Classification:610 Medicine & health
Deposited On:26 Jan 2011 18:12
Last Modified:05 Apr 2016 14:39
Publisher:Oxford University Press
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:10.1093/brain/awq130
PubMed ID:20522523

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