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1. Shared genetic basis between genetic generalized epilepsy and background electroencephalographic oscillations

Author

Stevelink, Remi, Luykx, Jurjen J, Lin, Bochao D, Leu, Costin, Lal, Dennis, Smith, Alexander W, Schijven, Dick, Carpay, Johannes A, Rademaker, Koen, Baldez, Roiza A Rodrigues, Devinsky, Orrin, Braun, Kees PJ, Jansen, Floor E, Smit, Dirk JA, Koeleman, Bobby PC, Abou‐Khalil, Bassel, Auce, Pauls, Avbersek, Andreja, Bahlo, Melanie, Balding, David J, Bast, Thomas, Baum, Larry, Becker, Albert J, Becker, Felicitas, Berghuis, Bianca, Berkovic, Samuel F, Boysen, Katja E, Bradfield, Jonathan P, Brody, Lawrence C, Buono, Russell J, Campbell, Ellen, Cascino, Gregory D, Catarino, Claudia B, Cavalleri, Gianpiero L, Cherny, Stacey S, Chinthapalli, Krishna, Coffey, Alison J, Compston, Alastair, Coppola, Antonietta, Cossette, Patrick, Craig, John J, de Haan, Gerrit‐Jan, De Jonghe, Peter, de Kovel, Carolien GF, Delanty, Norman, Depondt, Chantal, Dlugos, Dennis J, Doherty, Colin P, Elger, Christian E, Eriksson, Johan G, Ferraro, Thomas N, Feucht, Martha, Francis, Ben, Franke, Andre, French, Jacqueline A, Freytag, Saskia, Gaus, Verena, Geller, Eric B, Gieger, Christian, Glauser, Tracy, Glynn, Simon, Goldstein, David B, Gui, Hongsheng, Guo, Youling, Haas, Kevin F, Hakonarson, Hakon, Hallmann, Kerstin, Haut, Sheryl, Heinzen, Erin L, Helbig, Ingo, Hengsbach, Christian, Hjalgrim, Helle, Iacomino, Michele, Ingason, Andrés, Jamnadas‐Khoda, Jennifer, Johnson, Michael R, Kälviäinen, Reetta, Kantanen, Anne‐Mari, Kasperavičiūte, Dalia, Trenite, Dorothee Kasteleijn‐Nolst, Kirsch, Heidi E, Knowlton, Robert C, Krause, Roland, Krenn, Martin, Kunz, Wolfram S, Kuzniecky, Ruben, Kwan, Patrick, Lau, Yu‐Lung, Lehesjoki, Anna‐Elina, Lerche, Holger, Lieb, Wolfgang, Lindhout, Dick, Lo, Warren D, Lopes‐Cendes, Iscia, Lowenstein, Daniel H, Malovini, Alberto, Marson, Anthony G, Mayer, Thomas, McCormack, Mark, and Mills, James L

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Genetics, Brain Disorders, Clinical Research, Human Genome, Neurodegenerative, Epilepsy, 2.1 Biological and endogenous factors, Aetiology, Neurological, Adult, Algorithms, Beta Rhythm, Cohort Studies, Databases, Factual, Electroencephalography, Epilepsy, Generalized, Genome-Wide Association Study, Humans, Linkage Disequilibrium, Mendelian Randomization Analysis, Risk Assessment, Theta Rhythm, beta power, EEG, generalized epilepsy, GGE, oscillations, PRS, International League Against Epilepsy Consortium on Complex Epilepsies, Epi25 Collaborative, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveParoxysmal epileptiform abnormalities on electroencephalography (EEG) are the hallmark of epilepsies, but it is uncertain to what extent epilepsy and background EEG oscillations share neurobiological underpinnings. Here, we aimed to assess the genetic correlation between epilepsy and background EEG oscillations.MethodsConfounding factors, including the heterogeneous etiology of epilepsies and medication effects, hamper studies on background brain activity in people with epilepsy. To overcome this limitation, we compared genetic data from a genome-wide association study (GWAS) on epilepsy (n = 12 803 people with epilepsy and 24 218 controls) with that from a GWAS on background EEG (n = 8425 subjects without epilepsy), in which background EEG oscillation power was quantified in four different frequency bands: alpha, beta, delta, and theta. We replicated our findings in an independent epilepsy replication dataset (n = 4851 people with epilepsy and 20 428 controls). To assess the genetic overlap between these phenotypes, we performed genetic correlation analyses using linkage disequilibrium score regression, polygenic risk scores, and Mendelian randomization analyses.ResultsOur analyses show strong genetic correlations of genetic generalized epilepsy (GGE) with background EEG oscillations, primarily in the beta frequency band. Furthermore, we show that subjects with higher beta and theta polygenic risk scores have a significantly higher risk of having generalized epilepsy. Mendelian randomization analyses suggest a causal effect of GGE genetic liability on beta oscillations.SignificanceOur results point to shared biological mechanisms underlying background EEG oscillations and the susceptibility for GGE, opening avenues to investigate the clinical utility of background EEG oscillations in the diagnostic workup of epilepsy.

Published
2021

2. Ultra-Rare Genetic Variation in the Epilepsies: A Whole-Exome Sequencing Study of 17,606 Individuals

Author

Collaborative, Epi25, Feng, Yen-Chen Anne, Howrigan, Daniel P, Abbott, Liam E, Tashman, Katherine, Cerrato, Felecia, Singh, Tarjinder, Heyne, Henrike, Byrnes, Andrea, Churchhouse, Claire, Watts, Nick, Solomonson, Matthew, Lal, Dennis, Heinzen, Erin L, Dhindsa, Ryan S, Stanley, Kate E, Cavalleri, Gianpiero L, Hakonarson, Hakon, Helbig, Ingo, Krause, Roland, May, Patrick, Weckhuysen, Sarah, Petrovski, Slavé, Kamalakaran, Sitharthan, Sisodiya, Sanjay M, Cossette, Patrick, Cotsapas, Chris, De Jonghe, Peter, Dixon-Salazar, Tracy, Guerrini, Renzo, Kwan, Patrick, Marson, Anthony G, Stewart, Randy, Depondt, Chantal, Dlugos, Dennis J, Scheffer, Ingrid E, Striano, Pasquale, Freyer, Catharine, McKenna, Kevin, Regan, Brigid M, Bellows, Susannah T, Leu, Costin, Bennett, Caitlin A, Johns, Esther MC, Macdonald, Alexandra, Shilling, Hannah, Burgess, Rosemary, Weckhuysen, Dorien, Bahlo, Melanie, O’Brien, Terence J, Todaro, Marian, Stamberger, Hannah, Andrade, Danielle M, Sadoway, Tara R, Mo, Kelly, Krestel, Heinz, Gallati, Sabina, Papacostas, Savvas S, Kousiappa, Ioanna, Tanteles, George A, Štěrbová, Katalin, Vlčková, Markéta, Sedláčková, Lucie, Laššuthová, Petra, Klein, Karl Martin, Rosenow, Felix, Reif, Philipp S, Knake, Susanne, Kunz, Wolfram S, Zsurka, Gábor, Elger, Christian E, Bauer, Jürgen, Rademacher, Michael, Pendziwiat, Manuela, Muhle, Hiltrud, Rademacher, Annika, van Baalen, Andreas, von Spiczak, Sarah, Stephani, Ulrich, Afawi, Zaid, Korczyn, Amos D, Kanaan, Moien, Canavati, Christina, Kurlemann, Gerhard, Müller-Schlüter, Karen, Kluger, Gerhard, Häusler, Martin, Blatt, Ilan, Lemke, Johannes R, Krey, Ilona, Weber, Yvonne G, Wolking, Stefan, Becker, Felicitas, Hengsbach, Christian, Rau, Sarah, Maisch, Ana F, Steinhoff, Bernhard J, Schulze-Bonhage, Andreas, Schubert-Bast, Susanne, and Schreiber, Herbert

Subjects
Clinical Research, Human Genome, Neurosciences, Epilepsy, Biotechnology, Genetics, Neurodegenerative, Brain Disorders, 2.1 Biological and endogenous factors, Aetiology, Neurological, Case-Control Studies, DNA Mutational Analysis, Exome, Genetic Markers, Genetic Predisposition to Disease, Genetic Variation, Humans, Phenotype, Exome Sequencing, Epi25 Collaborative. Electronic address: s.berkovic@unimelb.edu.au, Epi25 Collaborative, burden analysis, epilepsy, epileptic encephalopathy, exome, seizures, sequencing, Biological Sciences, Medical and Health Sciences, Genetics & Heredity
Abstract

Sequencing-based studies have identified novel risk genes associated with severe epilepsies and revealed an excess of rare deleterious variation in less-severe forms of epilepsy. To identify the shared and distinct ultra-rare genetic risk factors for different types of epilepsies, we performed a whole-exome sequencing (WES) analysis of 9,170 epilepsy-affected individuals and 8,436 controls of European ancestry. We focused on three phenotypic groups: severe developmental and epileptic encephalopathies (DEEs), genetic generalized epilepsy (GGE), and non-acquired focal epilepsy (NAFE). We observed that compared to controls, individuals with any type of epilepsy carried an excess of ultra-rare, deleterious variants in constrained genes and in genes previously associated with epilepsy; we saw the strongest enrichment in individuals with DEEs and the least strong in individuals with NAFE. Moreover, we found that inhibitory GABAA receptor genes were enriched for missense variants across all three classes of epilepsy, whereas no enrichment was seen in excitatory receptor genes. The larger gene groups for the GABAergic pathway or cation channels also showed a significant mutational burden in DEEs and GGE. Although no single gene surpassed exome-wide significance among individuals with GGE or NAFE, highly constrained genes and genes encoding ion channels were among the lead associations; such genes included CACNA1G, EEF1A2, and GABRG2 for GGE and LGI1, TRIM3, and GABRG2 for NAFE. Our study, the largest epilepsy WES study to date, confirms a convergence in the genetics of severe and less-severe epilepsies associated with ultra-rare coding variation, and it highlights a ubiquitous role for GABAergic inhibition in epilepsy etiology.

Published
2019

3. Infantile Spasms of Unknown Cause: Predictors of Outcome and Genotype-Phenotype Correlation

Author

Yuskaitis, Christopher J, Ruzhnikov, Maura RZ, Howell, Katherine B, Allen, I Elaine, Kapur, Kush, Dlugos, Dennis J, Scheffer, Ingrid E, Poduri, Annapurna, and Sherr, Elliott H

Subjects
Epilepsy, Pediatric, Genetics, Neurodegenerative, Clinical Research, Neurosciences, Prevention, Brain Disorders, 2.1 Biological and endogenous factors, Aetiology, Neurological, Age of Onset, Child, Child Development, Child, Preschool, Developmental Disabilities, Female, Humans, Infant, Male, Phenotype, Prognosis, Retrospective Studies, Spasms, Infantile, Whole Exome Sequencing, Infantile spasms, Cryptogenic infantile spasms, Developmental outcomes, Epileptic encephalopathy, Seizures, Epilepsy genetics, Genotype-phenotype, Exome Sequencing, Paediatrics and Reproductive Medicine, Neurology & Neurosurgery
Abstract

BackgroundNo large-scale studies have specifically evaluated the outcomes of infantile spasms (IS) of unknown cause, previously known as cryptogenic or idiopathic. The Epilepsy Phenome/Genome Project aimed to characterize IS of unknown cause by phenotype and genotype analysis.MethodsWe undertook a retrospective multicenter observational cohort of 133 individuals within the Epilepsy Phenome/Genome Project database met criteria for IS of unknown cause with at least six months of follow-up data. Clinical medical records, imaging, and electroencephalography were examined.ResultsNormal development occurred in only 15% of IS of unknown cause. The majority (85%) had clinically documented developmental delay (15% mild, 20% moderate, and 50% severe) at last assessment (median 2.7 years; interquartile interval 1.71-6.25 years). Predictors of positive developmental outcomes included no delay prior to IS (P < 0.001), older age of IS onset (median six months old), and resolution of IS after initial treatment (P < 0.001). Additional seizures after IS occurred in 67%, with predictors being seizures prior to IS (P = 0.018), earlier age of IS onset (median five months old), and refractory IS (P = 0.008). On a research basis, whole exome sequencing identified 15% with de novo variants in known epilepsy genes. Individuals with a genetic finding were more likely to have poor developmental outcomes (P = 0.035).ConclusionsThe current study highlights the predominately unfavorable developmental outcomes and that subsequent seizures are common in children with IS of unknown cause. Ongoing genetic evaluation of IS of seemingly unknown cause is likely to yield a diagnosis and provide valuable prognostic information.

Published
2018

4. Distinct gene-set burden patterns underlie common generalized and focal epilepsies

Author

Feng, Yen-Chen Anne, Howrigan, Daniel P, Abbott, Liam E, Tashman, Katherine, Cerrato, Felecia, Singh, Tarjinder, Heyne, Henrike, Byrnes, Andrea, Churchhouse, Claire, Watts, Nick, Solomonson, Matthew, Lal, Dennis, Heinzen, Erin L, Dhindsa, Ryan S, Stanley, Kate E, Cavalleri, Gianpiero L, Hakonarson, Hakon, Helbig, Ingo, Krause, Roland, May, Patrick, Weckhuysen, Sarah, Petrovski, Slavé, Kamalakaran, Sitharthan, Sisodiya, Sanjay M, Cossette, Patrick, Cotsapas, Chris, DeJonghe, Peter, Dixon-Salazar, Tracy, Guerrini, Renzo, Kwan, Patrick, Marson, Anthony G, Stewart, Randy, Depondt, Chantal, Dlugos, Dennis J, Scheffer, Ingrid E, Striano, Pasquale, Freyer, Catharine, McKenna, Kevin, Regan, Brigid M, Bellows, Susannah T, Leu, Costin, Bennett, Caitlin A, Johns, Esther M C, Macdonald, Alexandra, Shilling, Hannah, Burgess, Rosemary, Weckhuysen, Dorien, Bahlo, Melanie, O'Brien, Terence J, Todaro, Marian, Stamberger, Hannah, Andrade, Danielle M, Sadoway, Tara R, Mo, Kelly, Krestel, Heinz, Gallati, Sabina, Papacostas, Savvas S, Kousiappa, Ioanna, Tanteles, George A, Štěrbová, Katalin, Vlčková, Markéta, Sedláčková, Lucie, Laššuthová, Petra, Klein, Karl Martin, Rosenow, Felix, Reif, Philipp S, Knake, Susanne, Kunz, Wolfram S, Zsurka, Gábor, Elger, Christian E, Bauer, Jürgen, Rademacher, Michael, Pendziwiat, Manuela, Muhle, Hiltrud, Rademacher, Annika, vanBaalen, Andreas, vonSpiczak, Sarah, Stephani, Ulrich, Afawi, Zaid, Korczyn, Amos D, Kanaan, Moien, Canavati, Christina, Kurlemann, Gerhard, Müller-Schlüter, Karen, Kluger, Gerhard, Häusler, Martin, Blatt, Ilan, Lemke, Johannes R, Krey, Ilona, Weber, Yvonne G, Wolking, Stefan, Becker, Felicitas, Hengsbach, Christian, Rau, Sarah, Maisch, Ana F, Steinhoff, Bernhard J, Schulze-Bonhage, Andreas, Schubert-Bast, Susanne, Schreiber, Herbert, Borggräfe, Ingo, Schankin, Christoph J, Mayer, Thomas, Korinthenberg, Rudolf, Brockmann, Knut, Dennig, Dieter, Madeleyn, Rene, Kälviäinen, Reetta, Auvinen, Pia, Saarela, Anni, Linnankivi, Tarja, Lehesjoki, Anna-Elina, Rees, Mark I, Chung, Seo-Kyung, Pickrell, William O, Powell, Robert, Schneider, Natascha, Balestrini, Simona, Zagaglia, Sara, Braatz, Vera, Johnson, Michael R, Auce, Pauls, Sills, Graeme J, Baum, Larry W, Sham, Pak C, Cherny, Stacey S, Lui, Colin H T, Barišić, Nina, Delanty, Norman, Doherty, Colin P, Shukralla, Arif, McCormack, Mark, El-Naggar, Hany, Canafoglia, Laura, Franceschetti, Silvana, Castellotti, Barbara, Granata, Tiziana, Zara, Federico, Iacomino, Michele, Madia, Francesca, Vari, Maria Stella, Mancardi, Maria Margherita, Salpietro, Vincenzo, Bisulli, Francesca, Tinuper, Paolo, Licchetta, Laura, Pippucci, Tommaso, Stipa, Carlotta, Minardi, Raffaella, Gambardella, Antonio, Labate, Angelo, Annesi, Grazia, Manna, Lorella, Gagliardi, Monica, Parrini, Elena, Mei, Davide, Vetro, Annalisa, Bianchini, Claudia, Montomoli, Martino, Doccini, Viola, Marini, Carla, Suzuki, Toshimitsu, Inoue, Yushi, Yamakawa, Kazuhiro, Tumiene, Birute, Sadleir, Lynette G, King, Chontelle, Mountier, Emily, Caglayan, Hande S, Arslan, Mutluay, Yapıcı, Zuhal, Yis, Uluc, Topaloglu, Pınar, Kara, Bulent, Turkdogan, Dilsad, Gundogdu-Eken, Aslı, Bebek, Nerses, Uğur-İşeri, Sibel, Baykan, Betül, Salman, Barış, Haryanyan, Garen, Yücesan, Emrah, Kesim, Yeşim, Özkara, Çiğdem, Poduri, Annapurna, Shiedley, Beth R, Shain, Catherine, Buono, Russell J, Ferraro, Thomas N, Sperling, Michael R, Lo, Warren, Privitera, Michael, French, Jacqueline A, Schachter, Steven, Kuzniecky, Ruben I, Devinsky, Orrin, Hegde, Manu, Khankhanian, Pouya, Helbig, Katherine L, Ellis, Colin A, Spalletta, Gianfranco, Piras, Fabrizio, Piras, Federica, Gili, Tommaso, Ciullo, Valentina, Reif, Andreas, McQuillin, Andrew, Bass, Nick, McIntosh, Andrew, Blackwood, Douglas, Johnstone, Mandy, Palotie, Aarno, Pato, Michele T, Pato, Carlos N, Bromet, Evelyn J, Carvalho, Celia Barreto, Achtyes, Eric D, Azevedo, Maria Helena, Kotov, Roman, Lehrer, Douglas S, Malaspina, Dolores, Marder, Stephen R, Medeiros, Helena, Morley, Christopher P, Perkins, Diana O, Sobell, Janet L, Buckley, Peter F, Macciardi, Fabio, Rapaport, Mark H, Knowles, James A, Cohort, Genomic Psychiatry, Fanous, Ayman H, McCarroll, Steven A, Gupta, Namrata, Gabriel, Stacey B, Daly, Mark J, Lander, Eric S, Lowenstein, Daniel H, Goldstein, David B, Lerche, Holger, Berkovic, Samuel F, Neale, Benjamin M, Koko, Mahmoud, Sander, Thomas, Bobbili, Dheeraj Reddy, and Nothnagel, Michael

Published
2021
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5. DNM1 encephalopathy

Author

von Spiczak, Sarah, Helbig, Katherine L, Shinde, Deepali N, Huether, Robert, Pendziwiat, Manuela, Lourenço, Charles, Nunes, Mark E, Sarco, Dean P, Kaplan, Richard A, Dlugos, Dennis J, Kirsch, Heidi, Slavotinek, Anne, Cilio, Maria R, Cervenka, Mackenzie C, Cohen, Julie S, McClellan, Rebecca, Fatemi, Ali, Yuen, Amy, Sagawa, Yoshimi, Littlejohn, Rebecca, McLean, Scott D, Hernandez-Hernandez, Laura, Maher, Bridget, Møller, Rikke S, Palmer, Elizabeth, Lawson, John A, Campbell, Colleen A, Joshi, Charuta N, Kolbe, Diana L, Hollingsworth, Georgie, Neubauer, Bernd A, Muhle, Hiltrud, Stephani, Ulrich, Scheffer, Ingrid E, Pena, Sérgio DJ, Sisodiya, Sanjay M, and Helbig, Ingo

Subjects
Neurosciences, Intellectual and Developmental Disabilities (IDD), Genetics, Clinical Research, Brain Disorders, Epilepsy, Pediatric, Neurodegenerative, Aetiology, 2.1 Biological and endogenous factors, Adolescent, Brain Diseases, Child, Child, Preschool, Cohort Studies, DNA Mutational Analysis, Dynamins, Female, GTP Phosphohydrolases, Homeodomain Proteins, Humans, Infant, Male, Microtubule-Associated Proteins, Mitochondrial Proteins, Models, Molecular, Mutation, Phenotype, Short Stature Homeobox Protein, Siblings, Synaptic Vesicles, Young Adult, Epi4K Consortium, EuroEPINOMICS-RES NLES Working Group, Clinical Sciences, Cognitive Sciences, Neurology & Neurosurgery
Abstract

ObjectiveTo evaluate the phenotypic spectrum caused by mutations in dynamin 1 (DNM1), encoding the presynaptic protein DNM1, and to investigate possible genotype-phenotype correlations and predicted functional consequences based on structural modeling.MethodsWe reviewed phenotypic data of 21 patients (7 previously published) with DNM1 mutations. We compared mutation data to known functional data and undertook biomolecular modeling to assess the effect of the mutations on protein function.ResultsWe identified 19 patients with de novo mutations in DNM1 and a sibling pair who had an inherited mutation from a mosaic parent. Seven patients (33.3%) carried the recurrent p.Arg237Trp mutation. A common phenotype emerged that included severe to profound intellectual disability and muscular hypotonia in all patients and an epilepsy characterized by infantile spasms in 16 of 21 patients, frequently evolving into Lennox-Gastaut syndrome. Two patients had profound global developmental delay without seizures. In addition, we describe a single patient with normal development before the onset of a catastrophic epilepsy, consistent with febrile infection-related epilepsy syndrome at 4 years. All mutations cluster within the GTPase or middle domains, and structural modeling and existing functional data suggest a dominant-negative effect on DMN1 function.ConclusionsThe phenotypic spectrum of DNM1-related encephalopathy is relatively homogeneous, in contrast to many other genetic epilepsies. Up to one-third of patients carry the recurrent p.Arg237Trp variant, which is now one of the most common recurrent variants in epileptic encephalopathies identified to date. Given the predicted dominant-negative mechanism of this mutation, this variant presents a prime target for therapeutic intervention.

Published
2017

6. DNM1 encephalopathy: A new disease of vesicle fission.

Author

von Spiczak, Sarah, Helbig, Katherine L, Shinde, Deepali N, Huether, Robert, Pendziwiat, Manuela, Lourenço, Charles, Nunes, Mark E, Sarco, Dean P, Kaplan, Richard A, Dlugos, Dennis J, Kirsch, Heidi, Slavotinek, Anne, Cilio, Maria R, Cervenka, Mackenzie C, Cohen, Julie S, McClellan, Rebecca, Fatemi, Ali, Yuen, Amy, Sagawa, Yoshimi, Littlejohn, Rebecca, McLean, Scott D, Hernandez-Hernandez, Laura, Maher, Bridget, Møller, Rikke S, Palmer, Elizabeth, Lawson, John A, Campbell, Colleen A, Joshi, Charuta N, Kolbe, Diana L, Hollingsworth, Georgie, Neubauer, Bernd A, Muhle, Hiltrud, Stephani, Ulrich, Scheffer, Ingrid E, Pena, Sérgio DJ, Sisodiya, Sanjay M, Helbig, Ingo, Epi4K Consortium, and EuroEPINOMICS-RES NLES Working Group

Subjects
Epi4K Consortium, EuroEPINOMICS-RES NLES Working Group, Synaptic Vesicles, Humans, Brain Diseases, GTP Phosphohydrolases, Microtubule-Associated Proteins, Homeodomain Proteins, Mitochondrial Proteins, Cohort Studies, DNA Mutational Analysis, Siblings, Phenotype, Mutation, Models, Molecular, Adolescent, Child, Child, Preschool, Infant, Female, Male, Young Adult, Short Stature Homeobox Protein, Dynamins, Models, Molecular, Preschool, Clinical Sciences, Neurosciences, Cognitive Sciences, Neurology & Neurosurgery
Abstract

ObjectiveTo evaluate the phenotypic spectrum caused by mutations in dynamin 1 (DNM1), encoding the presynaptic protein DNM1, and to investigate possible genotype-phenotype correlations and predicted functional consequences based on structural modeling.MethodsWe reviewed phenotypic data of 21 patients (7 previously published) with DNM1 mutations. We compared mutation data to known functional data and undertook biomolecular modeling to assess the effect of the mutations on protein function.ResultsWe identified 19 patients with de novo mutations in DNM1 and a sibling pair who had an inherited mutation from a mosaic parent. Seven patients (33.3%) carried the recurrent p.Arg237Trp mutation. A common phenotype emerged that included severe to profound intellectual disability and muscular hypotonia in all patients and an epilepsy characterized by infantile spasms in 16 of 21 patients, frequently evolving into Lennox-Gastaut syndrome. Two patients had profound global developmental delay without seizures. In addition, we describe a single patient with normal development before the onset of a catastrophic epilepsy, consistent with febrile infection-related epilepsy syndrome at 4 years. All mutations cluster within the GTPase or middle domains, and structural modeling and existing functional data suggest a dominant-negative effect on DMN1 function.ConclusionsThe phenotypic spectrum of DNM1-related encephalopathy is relatively homogeneous, in contrast to many other genetic epilepsies. Up to one-third of patients carry the recurrent p.Arg237Trp variant, which is now one of the most common recurrent variants in epileptic encephalopathies identified to date. Given the predicted dominant-negative mechanism of this mutation, this variant presents a prime target for therapeutic intervention.

Published
2017

7. Sub-genic intolerance, ClinVar, and the epilepsies: A whole-exome sequencing study of 29,165 individuals

Author

Motelow, Joshua E., Povysil, Gundula, Dhindsa, Ryan S., Stanley, Kate E., Allen, Andrew S., Feng, Yen-Chen Anne, Howrigan, Daniel P., Abbott, Liam E., Tashman, Katherine, Cerrato, Felecia, Cusick, Caroline, Singh, Tarjinder, Heyne, Henrike, Byrnes, Andrea E., Churchhouse, Claire, Watts, Nick, Solomonson, Matthew, Lal, Dennis, Gupta, Namrata, Neale, Benjamin M., Cavalleri, Gianpiero L., Cossette, Patrick, Cotsapas, Chris, De Jonghe, Peter, Dixon-Salazar, Tracy, Guerrini, Renzo, Hakonarson, Hakon, Heinzen, Erin L., Helbig, Ingo, Kwan, Patrick, Marson, Anthony G., Petrovski, Slavé, Kamalakaran, Sitharthan, Sisodiya, Sanjay M., Stewart, Randy, Weckhuysen, Sarah, Depondt, Chantal, Dlugos, Dennis J., Scheffer, Ingrid E., Striano, Pasquale, Freyer, Catharine, Krause, Roland, May, Patrick, McKenna, Kevin, Regan, Brigid M., Bennett, Caitlin A., Leu, Costin, Leech, Stephanie L., O’Brien, Terence J., Todaro, Marian, Stamberger, Hannah, Andrade, Danielle M., Ali, Quratulain Zulfiqar, Sadoway, Tara R., Krestel, Heinz, Schaller, André, Papacostas, Savvas S., Kousiappa, Ioanna, Tanteles, George A., Christou, Yiolanda, Štěrbová, Katalin, Vlčková, Markéta, Sedláčková, Lucie, Laššuthová, Petra, Klein, Karl Martin, Rosenow, Felix, Reif, Philipp S., Knake, Susanne, Neubauer, Bernd A., Zimprich, Friedrich, Feucht, Martha, Reinthaler, Eva M., Kunz, Wolfram S., Zsurka, Gábor, Surges, Rainer, Baumgartner, Tobias, von Wrede, Randi, Pendziwiat, Manuela, Muhle, Hiltrud, Rademacher, Annika, van Baalen, Andreas, von Spiczak, Sarah, Stephani, Ulrich, Afawi, Zaid, Korczyn, Amos D., Kanaan, Moien, Canavati, Christina, Kurlemann, Gerhard, Müller-Schlüter, Karen, Kluger, Gerhard, Häusler, Martin, Blatt, Ilan, Lemke, Johannes R., Krey, Ilona, Weber, Yvonne G., Wolking, Stefan, Becker, Felicitas, Lauxmann, Stephan, Boßelmann, Christian, Kegele, Josua, Hengsbach, Christian, Rau, Sarah, Steinhoff, Bernhard J., Schulze-Bonhage, Andreas, Borggräfe, Ingo, Schankin, Christoph J., Schubert-Bast, Susanne, Schreiber, Herbert, Mayer, Thomas, Korinthenberg, Rudolf, Brockmann, Knut, Wolff, Markus, Dennig, Dieter, Madeleyn, Rene, Kälviäinen, Reetta, Saarela, Anni, Timonen, Oskari, Linnankivi, Tarja, Lehesjoki, Anna-Elina, Rheims, Sylvain, Lesca, Gaetan, Ryvlin, Philippe, Maillard, Louis, Valton, Luc, Derambure, Philippe, Bartolomei, Fabrice, Hirsch, Edouard, Michel, Véronique, Chassoux, Francine, Rees, Mark I., Chung, Seo-Kyung, Pickrell, William O., Powell, Robert, Baker, Mark D., Fonferko-Shadrach, Beata, Lawthom, Charlotte, Anderson, Joseph, Schneider, Natascha, Balestrini, Simona, Zagaglia, Sara, Braatz, Vera, Johnson, Michael R., Auce, Pauls, Sills, Graeme J., Baum, Larry W., Sham, Pak C., Cherny, Stacey S., Lui, Colin H.T., Delanty, Norman, Doherty, Colin P., Shukralla, Arif, El-Naggar, Hany, Widdess-Walsh, Peter, Barišić, Nina, Canafoglia, Laura, Franceschetti, Silvana, Castellotti, Barbara, Granata, Tiziana, Ragona, Francesca, Zara, Federico, Iacomino, Michele, Riva, Antonella, Madia, Francesca, Vari, Maria Stella, Salpietro, Vincenzo, Scala, Marcello, Mancardi, Maria Margherita, Nobili, Lino, Amadori, Elisabetta, Giacomini, Thea, Bisulli, Francesca, Pippucci, Tommaso, Licchetta, Laura, Minardi, Raffaella, Tinuper, Paolo, Muccioli, Lorenzo, Mostacci, Barbara, Gambardella, Antonio, Labate, Angelo, Annesi, Grazia, Manna, Lorella, Gagliardi, Monica, Parrini, Elena, Mei, Davide, Vetro, Annalisa, Bianchini, Claudia, Montomoli, Martino, Doccini, Viola, Barba, Carmen, Hirose, Shinichi, Ishii, Atsushi, Suzuki, Toshimitsu, Inoue, Yushi, Yamakawa, Kazuhiro, Beydoun, Ahmad, Nasreddine, Wassim, Khoueiry Zgheib, Nathalie, Tumiene, Birute, Utkus, Algirdas, Sadleir, Lynette G., King, Chontelle, Caglayan, S. Hande, Arslan, Mutluay, Yapıcı, Zuhal, Topaloglu, Pınar, Kara, Bulent, Yis, Uluc, Turkdogan, Dilsad, Gundogdu-Eken, Aslı, Bebek, Nerses, Uğur-İşeri, Sibel, Baykan, Betül, Salman, Barış, Haryanyan, Garen, Yücesan, Emrah, Kesim, Yeşim, Özkara, YeşÇiğdem, Tsai, Meng-Han, Ho, Chen-Jui, Lin, Chih-Hsiang, Lin, Kuang-Lin, Chou, I-Jun, Poduri, Annapurna, Shiedley, Beth R., Shain, Catherine, Noebels, Jeffrey L., Goldman, Alicia, Busch, Robyn M., Jehi, Lara, Najm, Imad M., Ferguson, Lisa, Khoury, Jean, Glauser, Tracy A., Clark, Peggy O., Buono, Russell J., Ferraro, Thomas N., Sperling, Michael R., Lo, Warren, Privitera, Michael, French, Jacqueline A., Schachter, Steven, Kuzniecky, Ruben I., Devinsky, Orrin, Hegde, Manu, Greenberg, David A., Ellis, Colin A., Goldberg, Ethan, Helbig, Katherine L., Cosico, Mahgenn, Vaidiswaran, Priya, Fitch, Eryn, Berkovic, Samuel F., Lerche, Holger, Lowenstein, Daniel H., and Goldstein, David B.

Published
2021
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9. Ultra-Rare Genetic Variation in the Epilepsies: A Whole-Exome Sequencing Study of 17,606 Individuals

Author

Feng, Yen-Chen Anne, Howrigan, Daniel P., Abbott, Liam E., Tashman, Katherine, Cerrato, Felecia, Singh, Tarjinder, Heyne, Henrike, Byrnes, Andrea, Churchhouse, Claire, Watts, Nick, Solomonson, Matthew, Lal, Dennis, Heinzen, Erin L., Dhindsa, Ryan S., Stanley, Kate E., Cavalleri, Gianpiero L., Hakonarson, Hakon, Helbig, Ingo, Krause, Roland, May, Patrick, Weckhuysen, Sarah, Petrovski, Slavé, Kamalakaran, Sitharthan, Sisodiya, Sanjay M., Cossette, Patrick, Cotsapas, Chris, De Jonghe, Peter, Dixon-Salazar, Tracy, Guerrini, Renzo, Kwan, Patrick, Marson, Anthony G., Stewart, Randy, Depondt, Chantal, Dlugos, Dennis J., Scheffer, Ingrid E., Striano, Pasquale, Freyer, Catharine, McKenna, Kevin, Regan, Brigid M., Bellows, Susannah T., Leu, Costin, Bennett, Caitlin A., Johns, Esther M.C., Macdonald, Alexandra, Shilling, Hannah, Burgess, Rosemary, Weckhuysen, Dorien, Bahlo, Melanie, O’Brien, Terence J., Todaro, Marian, Stamberger, Hannah, Andrade, Danielle M., Sadoway, Tara R., Mo, Kelly, Krestel, Heinz, Gallati, Sabina, Papacostas, Savvas S., Kousiappa, Ioanna, Tanteles, George A., Štěrbová, Katalin, Vlčková, Markéta, Sedláčková, Lucie, Laššuthová, Petra, Klein, Karl Martin, Rosenow, Felix, Reif, Philipp S., Knake, Susanne, Kunz, Wolfram S., Zsurka, Gábor, Elger, Christian E., Bauer, Jürgen, Rademacher, Michael, Pendziwiat, Manuela, Muhle, Hiltrud, Rademacher, Annika, van Baalen, Andreas, von Spiczak, Sarah, Stephani, Ulrich, Afawi, Zaid, Korczyn, Amos D., Kanaan, Moien, Canavati, Christina, Kurlemann, Gerhard, Müller-Schlüter, Karen, Kluger, Gerhard, Häusler, Martin, Blatt, Ilan, Lemke, Johannes R., Krey, Ilona, Weber, Yvonne G., Wolking, Stefan, Becker, Felicitas, Hengsbach, Christian, Rau, Sarah, Maisch, Ana F., Steinhoff, Bernhard J., Schulze-Bonhage, Andreas, Schubert-Bast, Susanne, Schreiber, Herbert, Borggräfe, Ingo, Schankin, Christoph J., Mayer, Thomas, Korinthenberg, Rudolf, Brockmann, Knut, Dennig, Dieter, Madeleyn, Rene, Kälviäinen, Reetta, Auvinen, Pia, Saarela, Anni, Linnankivi, Tarja, Lehesjoki, Anna-Elina, Rees, Mark I., Chung, Seo-Kyung, Pickrell, William O., Powell, Robert, Schneider, Natascha, Balestrini, Simona, Zagaglia, Sara, Braatz, Vera, Johnson, Michael R., Auce, Pauls, Sills, Graeme J., Baum, Larry W., Sham, Pak C., Cherny, Stacey S., Lui, Colin H.T., Barišić, Nina, Delanty, Norman, Doherty, Colin P., Shukralla, Arif, McCormack, Mark, El-Naggar, Hany, Canafoglia, Laura, Franceschetti, Silvana, Castellotti, Barbara, Granata, Tiziana, Zara, Federico, Iacomino, Michele, Madia, Francesca, Vari, Maria Stella, Mancardi, Maria Margherita, Salpietro, Vincenzo, Bisulli, Francesca, Tinuper, Paolo, Licchetta, Laura, Pippucci, Tommaso, Stipa, Carlotta, Minardi, Raffaella, Gambardella, Antonio, Labate, Angelo, Annesi, Grazia, Manna, Lorella, Gagliardi, Monica, Parrini, Elena, Mei, Davide, Vetro, Annalisa, Bianchini, Claudia, Montomoli, Martino, Doccini, Viola, Marini, Carla, Suzuki, Toshimitsu, Inoue, Yushi, Yamakawa, Kazuhiro, Tumiene, Birute, Sadleir, Lynette G., King, Chontelle, Mountier, Emily, Caglayan, S. Hande, Arslan, Mutluay, Yapıcı, Zuhal, Yis, Uluc, Topaloglu, Pınar, Kara, Bulent, Turkdogan, Dilsad, Gundogdu-Eken, Aslı, Bebek, Nerses, Uğur-İşeri, Sibel, Baykan, Betül, Salman, Barış, Haryanyan, Garen, Yücesan, Emrah, Kesim, Yeşim, Özkara, Çiğdem, Poduri, Annapurna, Shiedley, Beth R., Shain, Catherine, Buono, Russell J., Ferraro, Thomas N., Sperling, Michael R., Lo, Warren, Privitera, Michael, French, Jacqueline A., Schachter, Steven, Kuzniecky, Ruben I., Devinsky, Orrin, Hegde, Manu, Khankhanian, Pouya, Helbig, Katherine L., Ellis, Colin A., Spalletta, Gianfranco, Piras, Fabrizio, Piras, Federica, Gili, Tommaso, Ciullo, Valentina, Reif, Andreas, McQuillin, Andrew, Bass, Nick, McIntosh, Andrew, Blackwood, Douglas, Johnstone, Mandy, Palotie, Aarno, Pato, Michele T., Pato, Carlos N., Bromet, Evelyn J., Carvalho, Celia Barreto, Achtyes, Eric D., Azevedo, Maria Helena, Kotov, Roman, Lehrer, Douglas S., Malaspina, Dolores, Marder, Stephen R., Medeiros, Helena, Morley, Christopher P., Perkins, Diana O., Sobell, Janet L., Buckley, Peter F., Macciardi, Fabio, Rapaport, Mark H., Knowles, James A., Fanous, Ayman H., McCarroll, Steven A., Gupta, Namrata, Gabriel, Stacey B., Daly, Mark J., Lander, Eric S., Lowenstein, Daniel H., Goldstein, David B., Lerche, Holger, Berkovic, Samuel F., and Neale, Benjamin M.

Published
2019
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14. Infantile spasms: A U.S. consensus report

Author

Pellock, John M, Hrachovy, Richard, Shinnar, Shlomo, Baram, Tallie Z, Bettis, David, Dlugos, Dennis J, Gaillard, William D, Gibson, Patricia A, Holmes, Gregory L, Nordli, Douglas R, O’Dell, Christine, Shields, W Donald, Trevathan, Edwin, and Wheless, James W

Subjects
Pediatric, Clinical Research, Health Services, Management of diseases and conditions, 7.3 Management and decision making, Adrenal Cortex Hormones, Adrenocorticotropic Hormone, Anticonvulsants, Consensus, Consensus Development Conferences as Topic, Diet, Ketogenic, Disease-Free Survival, Electroencephalography, Female, Humans, Infant, Longitudinal Studies, Male, Outcome Assessment, Health Care, Pediatrics, Practice Guidelines as Topic, Prednisolone, Spasms, Infantile, United States, Vigabatrin, West syndrome, Encephalopathic epilepsy, Adrenocorticotropic hormone, Corticosteroids, Infantile spasms, Treatment, Clinical Sciences, Neurosciences, Neurology & Neurosurgery
Abstract

The diagnosis, evaluation, and management of infantile spasms (IS) continue to pose significant challenges to the treating physician. Although an evidence-based practice guideline with full literature review was published in 2004, diversity in IS evaluation and treatment remains and highlights the need for further consensus to optimize outcomes in IS. For this purpose, a working group committed to the diagnosis, treatment, and establishment of a continuum of care for patients with IS and their families—the Infantile Spasms Working Group (ISWG)—was convened. The ISWG participated in a workshop for which the key objectives were to review the state of our understanding of IS, assess the scientific evidence regarding efficacy of currently available therapeutic options, and arrive at a consensus on protocols for diagnostic workup and management of IS that can serve as a guide to help specialists and general pediatricians optimally manage infants with IS. The overall goal of the workshop was to improve IS outcomes by assisting treating physicians with early recognition and diagnosis of IS, initiation of short duration therapy with a first-line treatment, timely electroencephalography (EEG) evaluation of treatment to evaluate effectiveness, and, if indicated, prompt treatment modification. Differences of opinion among ISWG members occurred in areas where data were lacking; however, this article represents a consensus of the U.S. approach to the diagnostic evaluation and treatment of IS.

Published
2010

20. Development and validation of a seizure prediction model in critically ill children

Author

Yang, Amy, Arndt, Daniel H., Berg, Robert A., Carpenter, Jessica L., Chapman, Kevin E., Dlugos, Dennis J., Gallentine, William B., Giza, Christopher C., Goldstein, Joshua L., Hahn, Cecil D., Lerner, Jason T., Loddenkemper, Tobias, Matsumoto, Joyce H., Nash, Kendall B., Payne, Eric T., Sánchez Fernández, Iván, Shults, Justine, Topjian, Alexis A., Williams, Korwyn, Wusthoff, Courtney J., and Abend, Nicholas S.

Published
2015
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23. Electrographic Seizures after Convulsive Status Epilepticus in Children and Young Adults: A Retrospective Multicenter Study

Author

Sánchez Fernández, Iván, Abend, Nicholas S., Arndt, Daniel H., Carpenter, Jessica L., Chapman, Kevin E., Cornett, Karen M., Dlugos, Dennis J., Gallentine, William B., Giza, Christopher C., Goldstein, Joshua L., Hahn, Cecil D., Lerner, Jason T., Matsumoto, Joyce H., McBain, Kristin, Nash, Kendall B., Payne, Eric, Sánchez, Sarah M., Williams, Korwyn, and Loddenkemper, Tobias

Published
2014
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27. Brain tumor presenting as somnambulism in an adolescent

Author

Prashad, Priya S., primary, Marcus, Carole L., additional, Brown, Lawrence W., additional, Dlugos, Dennis J., additional, Feygin, Tamara, additional, Harding, Brian N., additional, Heuer, Gregory G., additional, and Alexander Mason, Thornton B., additional

Published
2017
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35. Adjunctive everolimus therapy for tuberous sclerosis complex‐associated refractory seizures: Results from the postextension phase of EXIST‐3

Author

Franz, David N., primary, Lawson, John A., additional, Yapici, Zuhal, additional, Ikeda, Hiroko, additional, Polster, Tilman, additional, Nabbout, Rima, additional, Curatolo, Paolo, additional, Vries, Petrus J., additional, Dlugos, Dennis J., additional, Herbst, Fabian, additional, Peyrard, Severine, additional, Pelov, Diana, additional, and French, Jacqueline A., additional

Published
2021
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36. Distinct gene-set burden patterns underlie common generalized and focal epilepsies

Author

Koko, Mahmoud, primary, Krause, Roland, additional, Sander, Thomas, additional, Bobbili, Dheeraj Reddy, additional, Nothnagel, Michael, additional, May, Patrick, additional, Lerche, Holger, additional, Feng, Yen-Chen Anne, additional, Howrigan, Daniel P, additional, Abbott, Liam E, additional, Tashman, Katherine, additional, Cerrato, Felecia, additional, Singh, Tarjinder, additional, Heyne, Henrike, additional, Byrnes, Andrea, additional, Churchhouse, Claire, additional, Watts, Nick, additional, Solomonson, Matthew, additional, Lal, Dennis, additional, Heinzen, Erin L, additional, Dhindsa, Ryan S, additional, Stanley, Kate E, additional, Cavalleri, Gianpiero L, additional, Hakonarson, Hakon, additional, Helbig, Ingo, additional, Weckhuysen, Sarah, additional, Petrovski, Slavé, additional, Kamalakaran, Sitharthan, additional, Sisodiya, Sanjay M, additional, Cossette, Patrick, additional, Cotsapas, Chris, additional, DeJonghe, Peter, additional, Dixon-Salazar, Tracy, additional, Guerrini, Renzo, additional, Kwan, Patrick, additional, Marson, Anthony G, additional, Stewart, Randy, additional, Depondt, Chantal, additional, Dlugos, Dennis J, additional, Scheffer, Ingrid E, additional, Striano, Pasquale, additional, Freyer, Catharine, additional, McKenna, Kevin, additional, Regan, Brigid M, additional, Bellows, Susannah T, additional, Leu, Costin, additional, Bennett, Caitlin A, additional, Johns, Esther M C, additional, Macdonald, Alexandra, additional, Shilling, Hannah, additional, Burgess, Rosemary, additional, Weckhuysen, Dorien, additional, Bahlo, Melanie, additional, O'Brien, Terence J, additional, Todaro, Marian, additional, Stamberger, Hannah, additional, Andrade, Danielle M, additional, Sadoway, Tara R, additional, Mo, Kelly, additional, Krestel, Heinz, additional, Gallati, Sabina, additional, Papacostas, Savvas S, additional, Kousiappa, Ioanna, additional, Tanteles, George A, additional, Štěrbová, Katalin, additional, Vlčková, Markéta, additional, Sedláčková, Lucie, additional, Laššuthová, Petra, additional, Klein, Karl Martin, additional, Rosenow, Felix, additional, Reif, Philipp S, additional, Knake, Susanne, additional, Kunz, Wolfram S, additional, Zsurka, Gábor, additional, Elger, Christian E, additional, Bauer, Jürgen, additional, Rademacher, Michael, additional, Pendziwiat, Manuela, additional, Muhle, Hiltrud, additional, Rademacher, Annika, additional, vanBaalen, Andreas, additional, vonSpiczak, Sarah, additional, Stephani, Ulrich, additional, Afawi, Zaid, additional, Korczyn, Amos D, additional, Kanaan, Moien, additional, Canavati, Christina, additional, Kurlemann, Gerhard, additional, Müller-Schlüter, Karen, additional, Kluger, Gerhard, additional, Häusler, Martin, additional, Blatt, Ilan, additional, Lemke, Johannes R, additional, Krey, Ilona, additional, Weber, Yvonne G, additional, Wolking, Stefan, additional, Becker, Felicitas, additional, Hengsbach, Christian, additional, Rau, Sarah, additional, Maisch, Ana F, additional, Steinhoff, Bernhard J, additional, Schulze-Bonhage, Andreas, additional, Schubert-Bast, Susanne, additional, Schreiber, Herbert, additional, Borggräfe, Ingo, additional, Schankin, Christoph J, additional, Mayer, Thomas, additional, Korinthenberg, Rudolf, additional, Brockmann, Knut, additional, Dennig, Dieter, additional, Madeleyn, Rene, additional, Kälviäinen, Reetta, additional, Auvinen, Pia, additional, Saarela, Anni, additional, Linnankivi, Tarja, additional, Lehesjoki, Anna-Elina, additional, Rees, Mark I, additional, Chung, Seo-Kyung, additional, Pickrell, William O, additional, Powell, Robert, additional, Schneider, Natascha, additional, Balestrini, Simona, additional, Zagaglia, Sara, additional, Braatz, Vera, additional, Johnson, Michael R, additional, Auce, Pauls, additional, Sills, Graeme J, additional, Baum, Larry W, additional, Sham, Pak C, additional, Cherny, Stacey S, additional, Lui, Colin H T, additional, Barišić, Nina, additional, Delanty, Norman, additional, Doherty, Colin P, additional, Shukralla, Arif, additional, McCormack, Mark, additional, El-Naggar, Hany, additional, Canafoglia, Laura, additional, Franceschetti, Silvana, additional, Castellotti, Barbara, additional, Granata, Tiziana, additional, Zara, Federico, additional, Iacomino, Michele, additional, Madia, Francesca, additional, Vari, Maria Stella, additional, Mancardi, Maria Margherita, additional, Salpietro, Vincenzo, additional, Bisulli, Francesca, additional, Tinuper, Paolo, additional, Licchetta, Laura, additional, Pippucci, Tommaso, additional, Stipa, Carlotta, additional, Minardi, Raffaella, additional, Gambardella, Antonio, additional, Labate, Angelo, additional, Annesi, Grazia, additional, Manna, Lorella, additional, Gagliardi, Monica, additional, Parrini, Elena, additional, Mei, Davide, additional, Vetro, Annalisa, additional, Bianchini, Claudia, additional, Montomoli, Martino, additional, Doccini, Viola, additional, Marini, Carla, additional, Suzuki, Toshimitsu, additional, Inoue, Yushi, additional, Yamakawa, Kazuhiro, additional, Tumiene, Birute, additional, Sadleir, Lynette G, additional, King, Chontelle, additional, Mountier, Emily, additional, Caglayan, Hande S, additional, Arslan, Mutluay, additional, Yapıcı, Zuhal, additional, Yis, Uluc, additional, Topaloglu, Pınar, additional, Kara, Bulent, additional, Turkdogan, Dilsad, additional, Gundogdu-Eken, Aslı, additional, Bebek, Nerses, additional, Uğur-İşeri, Sibel, additional, Baykan, Betül, additional, Salman, Barış, additional, Haryanyan, Garen, additional, Yücesan, Emrah, additional, Kesim, Yeşim, additional, Özkara, Çiğdem, additional, Poduri, Annapurna, additional, Shiedley, Beth R, additional, Shain, Catherine, additional, Buono, Russell J, additional, Ferraro, Thomas N, additional, Sperling, Michael R, additional, Lo, Warren, additional, Privitera, Michael, additional, French, Jacqueline A, additional, Schachter, Steven, additional, Kuzniecky, Ruben I, additional, Devinsky, Orrin, additional, Hegde, Manu, additional, Khankhanian, Pouya, additional, Helbig, Katherine L, additional, Ellis, Colin A, additional, Spalletta, Gianfranco, additional, Piras, Fabrizio, additional, Piras, Federica, additional, Gili, Tommaso, additional, Ciullo, Valentina, additional, Reif, Andreas, additional, McQuillin, Andrew, additional, Bass, Nick, additional, McIntosh, Andrew, additional, Blackwood, Douglas, additional, Johnstone, Mandy, additional, Palotie, Aarno, additional, Pato, Michele T, additional, Pato, Carlos N, additional, Bromet, Evelyn J, additional, Carvalho, Celia Barreto, additional, Achtyes, Eric D, additional, Azevedo, Maria Helena, additional, Kotov, Roman, additional, Lehrer, Douglas S, additional, Malaspina, Dolores, additional, Marder, Stephen R, additional, Medeiros, Helena, additional, Morley, Christopher P, additional, Perkins, Diana O, additional, Sobell, Janet L, additional, Buckley, Peter F, additional, Macciardi, Fabio, additional, Rapaport, Mark H, additional, Knowles, James A, additional, Cohort, Genomic Psychiatry, additional, Fanous, Ayman H, additional, McCarroll, Steven A, additional, Gupta, Namrata, additional, Gabriel, Stacey B, additional, Daly, Mark J, additional, Lander, Eric S, additional, Lowenstein, Daniel H, additional, Goldstein, David B, additional, Berkovic, Samuel F, additional, and Neale, Benjamin M, additional

Published
2021
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44. Genetic Variation in PADI6-PADI4 on 1p36.13 Is Associated with Common Forms of Human Generalized Epilepsy

Author

Buono, Russell J., primary, Bradfield, Jonathan P., additional, Wei, Zhi, additional, Sperling, Michael R., additional, Dlugos, Dennis J., additional, Privitera, Michael D., additional, French, Jacqueline A., additional, Lo, Warren, additional, Cossette, Patrick, additional, Schachter, Steven C., additional, Basehore, Heather, additional, Lohoff, Falk W., additional, Grant, Struan F. A., additional, Ferraro, Thomas N., additional, and Hakonarson, Hakon, additional

Published
2021
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46. Sub-genic intolerance, ClinVar, and the epilepsies: A whole-exome sequencing study of 29,165 individuals

Author

Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Motelow, Joshua E., Povysil, Gundula, Dhindsa, Ryan S., Stanley, Kate E., Allen, Andrew S., Feng, Yen-Chen Anne, Howrigan, Daniel P., Abbott, Liam E., Tashman, Katherine, Cerrato, Felecia, Cusick, Caroline, Singh, Tarjinder, Heyne, Henrike, Byrnes, Andrea E., Churchhouse, Claire, Watts, Nick, Solomonson, Matthew, Lal, Dennis, Gupta, Namrata, Neale, Benjamin M., Cavalleri, Gianpiero L., Cossette, Patrick, Cotsapas, Chris, Jonghe, Peter De, Dixon-Salazar, Tracy, Guerrini, Renzo, Hakonarson, Hakon, Heinzen, Erin L., Helbig, Ingo, Kwan, Patrick, Marson, Anthony G., Petrovski, Slavé, Kamalakaran, Sitharthan, Sisodiya, Sanjay M., Stewart, Randy, Weckhuysen, Sarah, Depondt, Chantal, Dlugos, Dennis J., Scheffer, Ingrid E., Striano, Pasquale, Freyer, Catharine, Krause, Roland, May, Patrick, McKenna, Kevin, Regan, Brigid M., Bennett, Caitlin A., Leu, Costin, Leech, Stephanie L., O’Brien, Terence J., Todaro, Marian, Stamberger, Hannah, Andrade, Danielle M., Ali, Quratulain Zulfiqar, Sadoway, Tara R., Krestel, Heinz, Schaller, André, Papacostas, Savvas S., Kousiappa, Ioanna, Tanteles, George A., Christou, Yiolanda, Štěrbová, Katalin, Vlčková, Markéta, Sedláčková, Lucie, Laššuthová, Petra, Klein, Karl Martin, Rosenow, Felix, Reif, Philipp S., Knake, Susanne, Neubauer, Bernd A., Zimprich, Friedrich, Feucht, Martha, Reinthaler, Eva M., Kunz, Wolfram S., Zsurka, Gábor, Surges, Rainer, Baumgartner, Tobias, Wrede, Randi Von, Pendziwiat, Manuela, Muhle, Hiltrud, Rademacher, Annika, Baalen, Andreas Van, Spiczak, Sarah Von, Stephani, Ulrich, Afawi, Zaid, Korczyn, Amos D., Kanaan, Moien, Canavati, Christina, Kurlemann, Gerhard, Müller-Schlüter, Karen, Kluger, Gerhard, Häusler, Martin, Blatt, Ilan, Lemke, Johannes R., Krey, Ilona, Weber, Yvonne G., Wolking, Stefan, Becker, Felicitas, Lauxmann, Stephan, Boßelmann, Christian, Kegele, Josua, Hengsbach, Christian, Rau, Sarah, Steinhoff, Bernhard J., Schulze-Bonhage, Andreas, Borggräfe, Ingo, Schankin, Christoph J., Schubert-Bast, Susanne, Schreiber, Herbert, Mayer, Thomas, Korinthenberg, Rudolf, Brockmann, Knut, Wolff, Markus, Dennig, Dieter, Madeleyn, Rene, Kälviäinen, Reetta, Saarela, Anni, Timonen, Oskari, Linnankivi, Tarja, Lehesjoki, Anna-Elina, Rheims, Sylvain, Lesca, Gaetan, Ryvlin, Philippe, Maillard, Louis, Valton, Luc, Derambure, Philippe, Bartolomei, Fabrice, Hirsch, Edouard, Michel, Véronique, Chassoux, Francine, Rees, Mark I., Chung, Seo-Kyung, Pickrell, William O., Powell, Robert, Baker, Mark D., Fonferko-Shadrach, Beata, Lawthom, Charlotte, Anderson, Joseph, Schneider, Natascha, Balestrini, Simona, Zagaglia, Sara, Braatz, Vera, Johnson, Michael R., Auce, Pauls, Sills, Graeme J., Baum, Larry W., Sham, Pak C., Cherny, Stacey S., Lui, Colin H. T., Delanty, Norman, Doherty, Colin P., Shukralla, Arif, El-Naggar, Hany, Widdess-Walsh, Peter, Barišić, Nina, Canafoglia, Laura, Franceschetti, Silvana, Castellotti, Barbara, Granata, Tiziana, Ragona, Francesca, Zara, Federico, Iacomino, Michele, Riva, Antonella, Madia, Francesca, Vari, Maria Stella, Salpietro, Vincenzo, Scala, Marcello, Mancardi, Maria Margherita, Nobili, Lino, Amadori, Elisabetta, Giacomini, Thea, Bisulli, Francesca, Pippucci, Tommaso, Licchetta, Laura, Minardi, Raffaella, Tinuper, Paolo, Muccioli, Lorenzo, Mostacci, Barbara, Gambardella, Antonio, Labate, Angelo, Annesi, Grazia, Manna, Lorella, Gagliardi, Monica, Parrini, Elena, Mei, Davide, Vetro, Annalisa, Bianchini, Claudia, Montomoli, Martino, Doccini, Viola, Barba, Carmen, Hirose, Shinichi, Ishii, Atsushi, Suzuki, Toshimitsu, Inoue, Yushi, Yamakawa, Kazuhiro, Beydoun, Ahmad, Nasreddine, Wassim, Zgheib, Nathalie Khoueiry, Tumiene, Birute, Utkus, Algirdas, Sadleir, Lynette G., King, Chontelle, Caglayan, S. Hande, Arslan, Mutluay, Yapıcı, Zuhal, Topaloglu, Pınar, Kara, Bulent, Yis, Uluc, Turkdogan, Dilsad, Gundogdu-Eken, Aslı, Bebek, Nerses, Tsai, Meng-Han, Ho, Chen-Jui, Lin, Chih-Hsiang, Lin, Kuang-Lin, Chou, I.-Jun, Poduri, Annapurna, Shiedley, Beth R., Shain, Catherine, Noebels, Jeffrey L., Goldman, Alicia, Busch, Robyn M., Jehi, Lara, Najm, Imad M., Ferguson, Lisa, Khoury, Jean, Glauser, Tracy A., Clark, Peggy O., Buono, Russell J., Ferraro, Thomas N., Sperling, Michael R., Lo, Warren, Privitera, Michael, French, Jacqueline A., Schachter, Steven, Kuzniecky, Ruben I., Devinsky, Orrin, Hegde, Manu, Greenberg, David A., Ellis, Colin A., Goldberg, Ethan, Helbig, Katherine L., Cosico, Mahgenn, Vaidiswaran, Priya, Fitch, Eryn, Berkovic, Samuel F., Lerche, Holger, Lowenstein, Daniel H., Goldstein, David B., Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Motelow, Joshua E., Povysil, Gundula, Dhindsa, Ryan S., Stanley, Kate E., Allen, Andrew S., Feng, Yen-Chen Anne, Howrigan, Daniel P., Abbott, Liam E., Tashman, Katherine, Cerrato, Felecia, Cusick, Caroline, Singh, Tarjinder, Heyne, Henrike, Byrnes, Andrea E., Churchhouse, Claire, Watts, Nick, Solomonson, Matthew, Lal, Dennis, Gupta, Namrata, Neale, Benjamin M., Cavalleri, Gianpiero L., Cossette, Patrick, Cotsapas, Chris, Jonghe, Peter De, Dixon-Salazar, Tracy, Guerrini, Renzo, Hakonarson, Hakon, Heinzen, Erin L., Helbig, Ingo, Kwan, Patrick, Marson, Anthony G., Petrovski, Slavé, Kamalakaran, Sitharthan, Sisodiya, Sanjay M., Stewart, Randy, Weckhuysen, Sarah, Depondt, Chantal, Dlugos, Dennis J., Scheffer, Ingrid E., Striano, Pasquale, Freyer, Catharine, Krause, Roland, May, Patrick, McKenna, Kevin, Regan, Brigid M., Bennett, Caitlin A., Leu, Costin, Leech, Stephanie L., O’Brien, Terence J., Todaro, Marian, Stamberger, Hannah, Andrade, Danielle M., Ali, Quratulain Zulfiqar, Sadoway, Tara R., Krestel, Heinz, Schaller, André, Papacostas, Savvas S., Kousiappa, Ioanna, Tanteles, George A., Christou, Yiolanda, Štěrbová, Katalin, Vlčková, Markéta, Sedláčková, Lucie, Laššuthová, Petra, Klein, Karl Martin, Rosenow, Felix, Reif, Philipp S., Knake, Susanne, Neubauer, Bernd A., Zimprich, Friedrich, Feucht, Martha, Reinthaler, Eva M., Kunz, Wolfram S., Zsurka, Gábor, Surges, Rainer, Baumgartner, Tobias, Wrede, Randi Von, Pendziwiat, Manuela, Muhle, Hiltrud, Rademacher, Annika, Baalen, Andreas Van, Spiczak, Sarah Von, Stephani, Ulrich, Afawi, Zaid, Korczyn, Amos D., Kanaan, Moien, Canavati, Christina, Kurlemann, Gerhard, Müller-Schlüter, Karen, Kluger, Gerhard, Häusler, Martin, Blatt, Ilan, Lemke, Johannes R., Krey, Ilona, Weber, Yvonne G., Wolking, Stefan, Becker, Felicitas, Lauxmann, Stephan, Boßelmann, Christian, Kegele, Josua, Hengsbach, Christian, Rau, Sarah, Steinhoff, Bernhard J., Schulze-Bonhage, Andreas, Borggräfe, Ingo, Schankin, Christoph J., Schubert-Bast, Susanne, Schreiber, Herbert, Mayer, Thomas, Korinthenberg, Rudolf, Brockmann, Knut, Wolff, Markus, Dennig, Dieter, Madeleyn, Rene, Kälviäinen, Reetta, Saarela, Anni, Timonen, Oskari, Linnankivi, Tarja, Lehesjoki, Anna-Elina, Rheims, Sylvain, Lesca, Gaetan, Ryvlin, Philippe, Maillard, Louis, Valton, Luc, Derambure, Philippe, Bartolomei, Fabrice, Hirsch, Edouard, Michel, Véronique, Chassoux, Francine, Rees, Mark I., Chung, Seo-Kyung, Pickrell, William O., Powell, Robert, Baker, Mark D., Fonferko-Shadrach, Beata, Lawthom, Charlotte, Anderson, Joseph, Schneider, Natascha, Balestrini, Simona, Zagaglia, Sara, Braatz, Vera, Johnson, Michael R., Auce, Pauls, Sills, Graeme J., Baum, Larry W., Sham, Pak C., Cherny, Stacey S., Lui, Colin H. T., Delanty, Norman, Doherty, Colin P., Shukralla, Arif, El-Naggar, Hany, Widdess-Walsh, Peter, Barišić, Nina, Canafoglia, Laura, Franceschetti, Silvana, Castellotti, Barbara, Granata, Tiziana, Ragona, Francesca, Zara, Federico, Iacomino, Michele, Riva, Antonella, Madia, Francesca, Vari, Maria Stella, Salpietro, Vincenzo, Scala, Marcello, Mancardi, Maria Margherita, Nobili, Lino, Amadori, Elisabetta, Giacomini, Thea, Bisulli, Francesca, Pippucci, Tommaso, Licchetta, Laura, Minardi, Raffaella, Tinuper, Paolo, Muccioli, Lorenzo, Mostacci, Barbara, Gambardella, Antonio, Labate, Angelo, Annesi, Grazia, Manna, Lorella, Gagliardi, Monica, Parrini, Elena, Mei, Davide, Vetro, Annalisa, Bianchini, Claudia, Montomoli, Martino, Doccini, Viola, Barba, Carmen, Hirose, Shinichi, Ishii, Atsushi, Suzuki, Toshimitsu, Inoue, Yushi, Yamakawa, Kazuhiro, Beydoun, Ahmad, Nasreddine, Wassim, Zgheib, Nathalie Khoueiry, Tumiene, Birute, Utkus, Algirdas, Sadleir, Lynette G., King, Chontelle, Caglayan, S. 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Abstract

Summary Both mild and severe epilepsies are influenced by variants in the same genes, yet an explanation for the resulting phenotypic variation is unknown. As part of the ongoing Epi25 Collaboration, we performed a whole-exome sequencing analysis of 13,487 epilepsy-affected individuals and 15,678 control individuals. While prior Epi25 studies focused on gene-based collapsing analyses, we asked how the pattern of variation within genes differs by epilepsy type. Specifically, we compared the genetic architectures of severe developmental and epileptic encephalopathies (DEEs) and two generally less severe epilepsies, genetic generalized epilepsy and non-acquired focal epilepsy (NAFE). Our gene-based rare variant collapsing analysis used geographic ancestry-based clustering that included broader ancestries than previously possible and revealed novel associations. Using the missense intolerance ratio (MTR), we found that variants in DEE-affected individuals are in significantly more intolerant genic sub-regions than those in NAFE-affected individuals. Only previously reported pathogenic variants absent in available genomic datasets showed a significant burden in epilepsy-affected individuals compared with control individuals, and the ultra-rare pathogenic variants associated with DEE were located in more intolerant genic sub-regions than variants associated with non-DEE epilepsies. MTR filtering improved the yield of ultra-rare pathogenic variants in affected individuals compared with control individuals. Finally, analysis of variants in genes without a disease association revealed a significant burden of loss-of-function variants in the genes most intolerant to such variation, indicating additional epilepsy-risk genes yet to be discovered. Taken together, our study suggests that genic and sub-genic intolerance are critical characteristics for interpreting the effects of variation in genes that influence epilepsy.

Published
2021

47. Genetic variation in PADI6-PADI4 on 1p36.13 is associated with common forms of human generalized epilepsy

Author

Buono, Russell J., Bradfield, Jonathan P., Wei, Zhi, Sperling, Michael R., Dlugos, Dennis J., Privitera, Michael D., French, Jacqueline A., Lo, Warren, Cossette, Patrick, Schachter, Steven C., Basehore, Heather, Lohoff, Falk W., Grant, Struan F.A., Ferraro, Thomas N., Hakonarson, Hakon, Buono, Russell J., Bradfield, Jonathan P., Wei, Zhi, Sperling, Michael R., Dlugos, Dennis J., Privitera, Michael D., French, Jacqueline A., Lo, Warren, Cossette, Patrick, Schachter, Steven C., Basehore, Heather, Lohoff, Falk W., Grant, Struan F.A., Ferraro, Thomas N., and Hakonarson, Hakon

Abstract

We performed a genome-wide association study (GWAS) to identify genetic variation associated with common forms of idiopathic generalized epilepsy (GE) and focal epilepsy (FE). Using a cohort of 2220 patients and 14,448 controls, we searched for single nucleotide polymorphisms (SNPs) associated with GE, FE and both forms combined. We did not find any SNPs that reached genome-wide statistical significance (p ≤ 5 × 10−8) when comparing all cases to all controls, and few SNPs of interest comparing FE cases to controls. However, we document multiple linked SNPs in the PADI6-PADI4 genes that reach genome-wide significance and are associated with disease when comparing GE cases alone to controls. PADI genes encode enzymes that deiminate arginine to citrulline in molecular pathways related to epigenetic regulation of histones and autoantibody formation. Although epilepsy genetics and treatment are focused strongly on ion channel and neurotransmitter mechanisms, these results suggest that epigenetic control of gene expression and the formation of autoantibodies may also play roles in epileptogenesis.

Published
2021

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