Browsing by Author "Meloche, Caroline"

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    Rare coding variants in genes encoding GABA(A) receptors in genetic generalised epilepsies: an exome-based case-control study
    (ELSEVIER SCIENCE INC, 2018-01-01) May, Patrick; Girard, Simon; Harrer, Merle; Bobbili, Dheeraj R.; Schubert, Julian; Wolking, Stefan; Becker, Felicitas; Lachance-Touchette, Pamela; Meloche, Caroline; Gravel, Micheline; Niturad, Cristina E.; Knaus, Julia; De Kovel, Carolien; Toliat, Mohamad; Polvi, Anne; Iacomino, Michele; Guerrero-Lopez, Rosa; Baulac, Stephanie; Marini, Carla; Thiele, Holger; Altmueller, Janine; Jabbari, Kamel; Ruppert, Ann-Kathrin; Jurkowski, Wiktor; Lal, Dennis; Rusconi, Raffaella; Cestele, Sandrine; Terragni, Benedetta; Coombs, Ian D.; Reid, Christopher A.; Striano, Pasquale; Caglayan, Hande; Siren, Auli; Everett, Kate; Moller, Rikke S.; Hjalgrim, Helle; Muhle, Hiltrud; Helbig, Ingo; Kunz, Wolfram S.; Weber, Yvonne G.; Weckhuysen, Sarah; De Jonghe, Peter; Sisodiya, Sanjay M.; Nabbout, Rima; Franceschetti, Silvana; Coppola, Antonietta; Vari, Maria S.; Trenite, Dorothee Kasteleijn-Nolst; Baykan, Betul; Ozbek, Ugur; Bebek, Nerses; Klein, Karl M.; Rosenow, Felix; Nguyen, Dang K.; Dubeau, Francois; Carmant, Lionel; Lortie, Anne; Desbiens, Richard; Clement, Jean-Francois; Cieuta-Walti, Cecile; Sills, Graeme J.; Auce, Pauls; Francis, Ben; Johnson, Michael R.; Marson, Anthony G.; Berghuis, Bianca; Sander, Josemir W.; Avbersek, Andreja; McCormack, Mark; Cavalleri, Gianpiero L.; Delanty, Norman; Depondt, Chantal; Krenn, Martin; Zimprich, Fritz; Peter, Sarah; Nikanorova, Marina; Kraaij, Robert; van Rooij, Jeroen; Balling, Rudi; Ikram, M. Arfan; Uitterlinden, Andre G.; Avanzini, Giuliano; Schorge, Stephanie; Petrou, Steven; Mantegazza, Massimo; Sander, Thomas; LeGuern, Eric; Serratosa, Jose M.; Koeleman, Bobby P. C.; Palotie, Aarno; Lehesjoki, Anna-Elina; Nothnagel, Michael; Nuernberg, Peter; Maljevic, Snezana; Zara, Federico; Cossette, Patrick; Krause, Roland; Lerche, Holger; Consortium, Epicure; Consortium, EuroEP.I.N.O.M.I.C.S. C. O. G. I. E.; Consortium, EpiPG. X.
    Background Genetic generalised epilepsy is the most common type of inherited epilepsy. Despite a high concordance rate of 80\% in monozygotic twins, the genetic background is still poorly understood. We aimed to investigate the burden of rare genetic variants in genetic generalised epilepsy. Methods For this exome-based case-control study, we used three different genetic generalised epilepsy case cohorts and three independent control cohorts, all of European descent. Cases included in the study were clinically evaluated for genetic generalised epilepsy. Whole-exome sequencing was done for the discovery case cohort, a validation case cohort, and two independent control cohorts. The replication case cohort underwent targeted next-generation sequencing of the 19 known genes encoding subunits of GABA(A) receptors and was compared to the respective GABA(A) receptor variants of a third independent control cohort. Functional investigations were done with automated two-microelectrode voltage clamping in Xenopus laevis oocytes. Findings Statistical comparison of 152 familial index cases with genetic generalised epilepsy in the discovery cohort to 549 ethnically matched controls suggested an enrichment of rare missense (Nonsyn) variants in the ensemble of 19 genes encoding GABA(A) receptors in cases (odds ratio {[}OR] 2.40 {[}95\% CI 1.41-4.10]