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1. Experience of the first adult-focussed undiagnosed disease program in Australia (AHA-UDP): solving rare and puzzling genetic disorders is ageless

Author

Wallis, Mathew, Bodek, Simon D., Munro, Jacob, Rafehi, Haloom, Bennett, Mark F., Ye, Zimeng, Schneider, Amy, Gardiner, Fiona, Valente, Giulia, Murdoch, Emma, Uebergang, Eloise, Hunter, Jacquie, Stutterd, Chloe, Huq, Aamira, Salmon, Lucinda, Scheffer, Ingrid, Eratne, Dhamidhu, Meyn, Stephen, Fong, Chun Y., John, Tom, Mullen, Saul, White, Susan M., Brown, Natasha J., McGillivray, George, Chen, Jesse, Richmond, Chris, Hughes, Andrew, Krzesinski, Emma, Fennell, Andrew, Chambers, Brian, Santoreneos, Renee, Le Fevre, Anna, Hildebrand, Michael S., Bahlo, Melanie, Christodoulou, John, Delatycki, Martin, and Berkovic, Samuel F.

Published
2024
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2. Neuropsychological function in psychosis of epilepsy

Author

Allebone, James, Kanaan, Richard A., Rayner, Genevieve, Maller, Jerome, O’Brien, Terence J., Mullen, Saul A., Cook, Mark, Adams, Sophia J., Vogrin, Simon, Vaughan, David N., Kwan, Patrick, Berkovic, Samuel F., D’Souza, Wendyl J., Jackson, Graeme, Velakoulis, Dennis, and Wilson, Sarah J.

Published
2023
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3. Quantitative analysis of phenotypic elements augments traditional electroclinical classification of common familial epilepsies

Author

Abou‐Khalil, Bassel, Afawi, Zaid, Allen, Andrew S, Bautista, Jocelyn F, Bellows, Susannah T, Berkovic, Samuel F, Bluvstein, Judith, Burgess, Rosemary, Cascino, Gregory, Cossette, Patrick, Cristofaro, Sabrina, Crompton, Douglas E, Delanty, Norman, Devinsky, Orrin, Dlugos, Dennis, Ellis, Colin A, Epstein, Michael P, Fountain, Nathan B, Freyer, Catharine, Geller, Eric B, Glauser, Tracy, Glynn, Simon, Goldberg‐Stern, Hadassa, Goldstein, David B, Gravel, Micheline, Haas, Kevin, Haut, Sheryl, Heinzen, Erin L, Kirsch, Heidi E, Kivity, Sara, Knowlton, Robert, Korczyn, Amos D, Kossoff, Eric, Kuzniecky, Ruben, Loeb, Rebecca, Lowenstein, Daniel H, Marson, Anthony G, McCormack, Mark, McKenna, Kevin, Mefford, Heather C, Motika, Paul, Mullen, Saul A, J. O'Brien, Terence, Ottman, Ruth, Paolicchi, Juliann, Parent, Jack M, Paterson, Sarah, Petrou, Steven, Petrovski, Slavé, Owen Pickrell, William, Poduri, Annapurna, Rees, Mark I, Sadleir, Lynette G, Scheffer, Ingrid E, Shih, Jerry, Singh, Rani, Sirven, Joseph, Smith, Michael, Smith, Phil EM, Thio, Liu Lin, Thomas, Rhys H, Venkat, Anu, Vining, Eileen, Von Allmen, Gretchen, Weisenberg, Judith, Widdess‐Walsh, Peter, and Winawer, Melodie R

Subjects
Neurodegenerative, Neurosciences, Epilepsy, Clinical Research, Brain Disorders, 2.1 Biological and endogenous factors, Aetiology, Neurological, Electroencephalography, Epileptic Syndromes, Female, Humans, Latent Class Analysis, Male, Pedigree, Phenotype, epilepsy, genetics, latent class analysis, phenotype, Epi4K Consortium, Clinical Sciences, Neurology & Neurosurgery
Abstract

ObjectiveClassification of epilepsy into types and subtypes is important for both clinical care and research into underlying disease mechanisms. A quantitative, data-driven approach may augment traditional electroclinical classification and shed new light on existing classification frameworks.MethodsWe used latent class analysis, a statistical method that assigns subjects into groups called latent classes based on phenotypic elements, to classify individuals with common familial epilepsies from the Epi4K Multiplex Families study. Phenotypic elements included seizure types, seizure symptoms, and other elements of the medical history. We compared class assignments to traditional electroclinical classifications and assessed familial aggregation of latent classes.ResultsA total of 1120 subjects with epilepsy were assigned to five latent classes. Classes 1 and 2 contained subjects with generalized epilepsy, largely reflecting the distinction between absence epilepsies and younger onset (class 1) versus myoclonic epilepsies and older onset (class 2). Classes 3 and 4 contained subjects with focal epilepsies, and in contrast to classes 1 and 2, these did not adhere as closely to clinically defined focal epilepsy subtypes. Class 5 contained nearly all subjects with febrile seizures plus or unknown epilepsy type, as well as a few subjects with generalized epilepsy and a few with focal epilepsy. Family concordance of latent classes was similar to or greater than concordance of clinically defined epilepsy types.SignificanceQuantitative classification of epilepsy has the potential to augment traditional electroclinical classification by (1) combining some syndromes into a single class, (2) splitting some syndromes into different classes, (3) helping to classify subjects who could not be classified clinically, and (4) defining the boundaries of clinically defined classifications. This approach can guide future research, including molecular genetic studies, by identifying homogeneous sets of individuals that may share underlying disease mechanisms.

Published
2019

5. Phenotypic analysis of 303 multiplex families with common epilepsies.

Author

Abou-Khalil, Bassel, Afawi, Zaid, Allen, Andrew S, Bautista, Jocelyn F, Bellows, Susannah T, Berkovic, Samuel F, Bluvstein, Judith, Burgess, Rosemary, Cascino, Gregory, Cops, Elisa J, Cossette, Patrick, Cristofaro, Sabrina, Crompton, Douglas E, Delanty, Norman, Devinsky, Orrin, Dlugos, Dennis, Epstein, Michael P, Fountain, Nathan B, Freyer, Catharine, Garry, Sarah I, Geller, Eric B, Glauser, Tracy, Glynn, Simon, Goldberg-Stern, Hadassa, Goldstein, David B, Gravel, Micheline, Haas, Kevin, Haut, Sheryl, Heinzen, Erin L, Kirsch, Heidi E, Kivity, Sara, Knowlton, Robert, Korczyn, Amos D, Kossoff, Eric, Kuzniecky, Ruben, Loeb, Rebecca, Lowenstein, Daniel H, Marson, Anthony G, McCormack, Mark, McKenna, Kevin, Mefford, Heather C, Motika, Paul, Mullen, Saul A, O'Brien, Terence J, Ottman, Ruth, Paolicchi, Juliann, Parent, Jack M, Paterson, Sarah, Petrovski, Slave, Pickrell, William Owen, Poduri, Annapurna, Rees, Mark I, Sadleir, Lynette G, Scheffer, Ingrid E, Shih, Jerry, Singh, Rani, Sirven, Joseph, Smith, Michael, Smith, Phil EM, Thio, Liu Lin, Thomas, Rhys H, Venkat, Anu, Vining, Eileen, Von Allmen, Gretchen, Weisenberg, Judith, Widdess-Walsh, Peter, and Winawer, Melodie R

Subjects
Genetics, Clinical Research, Brain Disorders, Pediatric, Neurosciences, Epilepsy, Neurodegenerative, 2.1 Biological and endogenous factors, Aetiology, Neurological, Adolescent, Age of Onset, Child, Child, Preschool, Epilepsy, Generalized, Family Health, Female, Humans, Male, Pedigree, Phenotype, Sex Factors, Young Adult, epilepsy, multiplex families, phenotype, genetics, Epi4K Consortium, Medical and Health Sciences, Psychology and Cognitive Sciences, Neurology & Neurosurgery
Abstract

Gene identification in epilepsy has mainly been limited to large families segregating genes of major effect and de novo mutations in epileptic encephalopathies. Many families that present with common non-acquired focal epilepsies and genetic generalized epilepsies remain unexplained. We assembled a cohort of 'genetically enriched' common epilepsies by collecting and phenotyping families containing multiple individuals with unprovoked seizures. We aimed to determine if specific clinical epilepsy features aggregate within families, and whether this segregation of phenotypes may constitute distinct 'familial syndromes' that could inform genomic analyses. Families with three or more individuals with unprovoked seizures were studied across multiple international centres. Affected individuals were phenotyped and classified according to specific electroclinical syndromes. Families were categorized based on syndromic groupings of affected family members, examined for pedigree structure and phenotypic patterns and, where possible, assigned specific familial epilepsy syndromes. A total of 303 families were assembled and analysed, comprising 1120 affected phenotyped individuals. Of the 303 families, 117 exclusively segregated generalized epilepsy, 62 focal epilepsy, and 22 were classified as genetic epilepsy with febrile seizures plus. Over one-third (102 families) were observed to have mixed epilepsy phenotypes: 78 had both generalized and focal epilepsy features within the same individual (n = 39), or within first or second degree relatives (n = 39). Among the genetic generalized epilepsy families, absence epilepsies were found to cluster within families independently of juvenile myoclonic epilepsy, and significantly more females were affected than males. Of the 62 familial focal epilepsy families, two previously undescribed familial focal syndrome patterns were evident: 15 families had posterior quadrant epilepsies, including seven with occipito-temporal localization and seven with temporo-parietal foci, and four families displayed familial focal epilepsy of childhood with multiple affected siblings that was suggestive of recessive inheritance. The findings suggest (i) specific patterns of syndromic familial aggregation occur, including newly recognized forms of familial focal epilepsy; (ii) although syndrome-specificity usually occurs in multiplex families, the one-third of families with features of both focal and generalized epilepsy is suggestive of shared genetic determinants; and (iii) patterns of features observed across families including pedigree structure, sex, and age of onset may hold clues for future gene identification. Such detailed phenotypic information will be invaluable in the conditioning and interpretation of forthcoming sequencing data to understand the genetic architecture and inter-relationships of the common epilepsy syndromes.

Published
2017

6. Enlarged hippocampal fissure in psychosis of epilepsy

Author

Allebone, James, Kanaan, Richard A., Maller, Jerome J., O'Brien, Terrence, Mullen, Saul, Cook, Mark, Adams, Sophie, Vogrin, Simon, Vaughan, David, Connelly, Alan, Kwan, Patrick, Berkovic, Samuel F., D'Souza, Wendyl, Jackson, Graeme, Velakoulis, Dennis, and Wilson, Sarah J.

Published
2020
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7. Efficacy and Safety of ES-481, a Novel TARP Inhibitor, in Drug-resistant Epilepsy: A Double-blind Randomized Placebo Controlled Phase IIa Trial (S19.003)

Author

O’Brien, Terence, primary, Foster, Emma, additional, Millist, Lyn, additional, Germaine, Jack, additional, Chamorro, Stephanie, additional, Roberts, Caitlyn, additional, Nicolo, John Paul, additional, Hosking, Sean, additional, Perucca, Piero, additional, Mullen, Saul, additional, Robinson, Heather, additional, Wharrie, Bec, additional, Walsh, Brittany, additional, Reutens, David, additional, Irwin, Kimberley, additional, Chen, Michael, additional, and Niecestro, Robert, additional

Published
2024
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9. Distinctivein vitrophenotypes in iPSC-derived neurons from patients with gain- and loss-of-functionSCN2Adevelopmental and epileptic encephalopathy

Author

Mao, Miaomiao, primary, Mattei, Cristiana, additional, Rollo, Ben, additional, Byars, Sean, additional, Cuddy, Claire, additional, Berecki, Geza, additional, Heighway, Jacqueline, additional, Pachernegg, Svenja, additional, Menheniott, Trevelyan, additional, Apted, Danielle, additional, Jia, Linghan, additional, Dalby, Kelley, additional, Nemiroff, Alex, additional, Mullen, Saul, additional, Reid, Christopher A., additional, Maljevic, Snezana, additional, and Petrou, Steven, additional

Published
2023
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11. Familial mesial temporal lobe epilepsy: clinical spectrum and genetic evidence for a polygenic architecture

Author

Harris, Rebekah V, primary, Oliver, Karen L, additional, Perucca, Piero, additional, Striano, Pasquale, additional, Labate, Angelo, additional, Riva, Antonella, additional, Grinton, Bronwyn E, additional, Reid, Joshua, additional, Hutton, Jessica, additional, Todaro, Marian, additional, O'Brien, Terence J, additional, Kwan, Patrick, additional, Sadleir, Lynette G, additional, Mullen, Saul A, additional, Dazzo, Emanuela, additional, Crompton, Douglas E, additional, Scheffer, Ingrid E, additional, Bahlo, Melanie, additional, Nobile, Carlo, additional, Gambardella, Antonio, additional, and Berkovic, Samuel F, additional

Published
2023
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13. Distinctive In Vitro Phenotypes in iPSC-Derived Neurons From Patients With Gain- and Loss-of-Function SCN2A Developmental and Epileptic Encephalopathy.

Author

Miaomiao Mao, Mattei, Cristiana, Rollo, Ben, Byars, Sean, Cuddy, Claire, Berecki, Geza, Heighway, Jacqueline, Pachernegg, Svenja, Menheniott, Trevelyan, Apted, Danielle, Linghan Jia, Dalby, Kelley, Nemiroff, Alex, Mullen, Saul, Reid, Christopher A., Maljevic, Snezana, and Petrou, Steven

Subjects
SODIUM channels, INDUCED pluripotent stem cells, PHENOTYPES, NEURONS, NEURAL circuitry, SODIUM channel blockers, PEOPLE with epilepsy
Abstract

SCN2A encodes NaV1.2, an excitatory neuron voltage-gated sodium channel and a major monogenic cause of neurodevelopmental disorders, including developmental and epileptic encephalopathies (DEE) and autism. Clinical presentation and pharmocosensitivity vary with the nature of SCN2A variant dysfunction and can be divided into gain-of-function (GoF) cases with pre- or peri-natal seizures and loss-of-function (LoF) patients typically having infantile spasms after 6 months of age. We established and assessed patient induced pluripotent stem cell (iPSC) - derived neuronal models for two recurrent SCN2A DEE variants with GoF R1882Q and LoF R853Q associated with early- and late-onset DEE, respectively. Two male patient-derived iPSC isogenic pairs were differentiated using Neurogenin-2 overexpression yielding populations of cortical-like glutamatergic neurons. Functional properties were assessed using patch clamp and multielectrode array recordings and transcriptomic profiles obtained with total mRNA sequencing after 2-4 weeks in culture. At 3 weeks of differentiation, increased neuronal activity at cellular and network levels was observed for R1882Q iPSC-derived neurons. In contrast, R853Q neurons showed only subtle changes in excitability after 4 weeks and an overall reduced network activity after 7 weeks in vitro. Consistent with the reported efficacy in some GoF SCN2A patients, phe-nytoin (sodium channel blocker) reduced the excitability of neurons to the control levels in R1882Q neuronal cultures. Transcriptomic alterations in neurons were detected for each variant and convergent pathways suggested potential shared mechanisms underlying SCN2A DEE. In summary, patient iPSC-derived neuronal models of SCN2A GoF and LoF pathogenic variants causing DEE show specific functional and transcriptomic in vitro phenotypes. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Mosaicism in tuberous sclerosis complex: Lowering the threshold for clinical reporting

Author

Ye, Zimeng, primary, Lin, Sufang, additional, Zhao, Xia, additional, Bennett, Mark F., additional, Brown, Natasha J., additional, Wallis, Mathew, additional, Gao, Xinyi, additional, Sun, Li, additional, Wu, Jiarui, additional, Vedururu, Ravikiran, additional, Witkowski, Tom, additional, Gardiner, Fiona, additional, Stutterd, Chloe, additional, Duan, Jing, additional, Mullen, Saul A., additional, McGillivray, George, additional, Bodek, Simon, additional, Valente, Giulia, additional, Reagan, Matthew, additional, Yao, Yi, additional, Li, Lin, additional, Chen, Li, additional, Boys, Amber, additional, Adikari, Thiuni N., additional, Cao, Dezhi, additional, Hu, Zhanqi, additional, Beshay, Victoria, additional, Zhang, Victor W., additional, Berkovic, Samuel F., additional, Scheffer, Ingrid E., additional, Liao, Jianxiang, additional, and Hildebrand, Michael S., additional

Published
2022
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18. 2399 An early phase open-label trial of a novel TARP inhibitor

Author

O’Brien, Terence J, primary, Germaine, Jack, additional, Nicolo, John Paul, additional, Perucca, Piero, additional, Mullen, Saul, additional, Reutens, David, additional, Wharrie, Bec, additional, Robinson, Heather, additional, Walsh, Brittany, additional, Roten, Annie, additional, Millist, Lyn, additional, Foster, Emma, additional, Hosking, Sean, additional, Chamorro, Stephanie, additional, Bates, Annabel, additional, and Niecestro, Robert, additional

Published
2022
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19. Kufs Disease, the Major Adult Form of Neuronal Ceroid Lipofuscinosis, Caused by Mutations in CLN6

Author

Arsov, Todor, Smith, Katherine R., Damiano, John, Franceschetti, Silvana, Canafoglia, Laura, Bromhead, Catherine J., Andermann, Eva, Vears, Danya F., Cossette, Patrick, Rajagopalan, Sulekha, McDougall, Alan, Sofia, Vito, Farrell, Michael, Aguglia, Umberto, Zini, Andrea, Meletti, Stefano, Morbin, Michela, Mullen, Saul, Andermann, Frederick, Mole, Sara E., Bahlo, Melanie, and Berkovic, Samuel F.

Published
2011
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22. CHD2 variants are a risk factor for photosensitivity in epilepsy

Author

Galizia, Elizabeth C., Myers, Candace T., Leu, Costin, de Kovel, Carolien G. F., Afrikanova, Tatiana, Cordero-Maldonado, Maria Lorena, Martins, Teresa G., Jacmin, Maxime, Drury, Suzanne, Krishna Chinthapalli, V., Muhle, Hiltrud, Pendziwiat, Manuela, Sander, Thomas, Ruppert, Ann-Kathrin, Møller, Rikke S., Thiele, Holger, Krause, Roland, Schubert, Julian, Lehesjoki, Anna-Elina, Nürnberg, Peter, Lerche, Holger, Palotie, Aarno, Coppola, Antonietta, Striano, Salvatore, Gaudio, Luigi Del, Boustred, Christopher, Schneider, Amy L., Lench, Nicholas, Jocic-Jakubi, Bosanka, Covanis, Athanasios, Capovilla, Giuseppe, Veggiotti, Pierangelo, Piccioli, Marta, Parisi, Pasquale, Cantonetti, Laura, Sadleir, Lynette G., Mullen, Saul A., Berkovic, Samuel F., Stephani, Ulrich, Helbig, Ingo, Crawford, Alexander D., Esguerra, Camila V., Kasteleijn-Nolst Trenité, Dorothee G. A., Koeleman, Bobby P. C., Mefford, Heather C., Scheffer, Ingrid E., and Sisodiya, Sanjay M.

Published
2015
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25. Epilepsia Brief Communication: Inherited RORB pathogenic variants: overlap of photosensitive genetic generalized and occipital lobe epilepsy

Author

Sadleir, Lynette G, de Valles-Ibáñez, Guillem, King, Chontelle, Coleman, Matthew, Mossman, Stuart, Paterson, Sarah, Nguyen, John, Berkovic, Samuel F, Mullen, Saul, Bahlo, Melanie, Hildebrand, Michael S., Mefford, Heather C, and Scheffer, Ingrid E

Subjects
Male, Infant, Nuclear Receptor Subfamily 1, Group F, Member 2, Article, Epilepsy, Reflex, Pedigree, Child, Preschool, Mutation, Humans, Epilepsy, Generalized, Female, Genetic Predisposition to Disease, Epilepsies, Partial, Child
Abstract

Variants in RORB have been reported in eight individuals with epilepsy, with phenotypes ranging from eyelid myoclonia with absence epilepsy to developmental and epileptic encephalopathies. We identified novel RORB variants in 11 affected individuals from four families. One was from whole genome sequencing and three were from RORB screening of three epilepsy cohorts: developmental and epileptic encephalopathies (n = 1021), overlap of generalized and occipital epilepsy (n = 84), and photosensitivity (n = 123). Following interviews and review of medical records, individuals' seizure and epilepsy syndromes were classified. Three novel missense variants and one exon 3 deletion were predicted to be pathogenic by in silico tools, not found in population databases, and located in key evolutionary conserved domains. Median age at seizure onset was 3.5 years (0.5-10 years). Generalized, predominantly absence and myoclonic, and occipital seizures were seen in all families, often within the same individual (6/11). All individuals with epilepsy were photosensitive, and seven of 11 had cognitive abnormalities. Electroencephalograms showed generalized spike and wave and/or polyspike and wave. Here we show a striking RORB phenotype of overlap of photosensitive generalized and occipital epilepsy in both individuals and families. This is the first report of a gene associated with this overlap of epilepsy syndromes.

Published
2020

27. Role of the sodium channel SCN9A in genetic epilepsy with febrile seizures plus and Dravet syndrome

Author

Mulley, John C., Hodgson, Bree, McMahon, Jacinta M., Iona, Xenia, Bellows, Susannah, Mullen, Saul A, Farrell, Kevin, Mackay, Mark, Sadleir, Lynette, Bleasel, Andrew, Gill, Deepak, Webster, Richard, Wirrell, Elaine C., Harbord, Michael, Sisodiya, Sanyjay, Andermann, Eva, Kivity, Sara, Berkovic, Samuel F., Scheffer, Ingrid E., and Dibbens, Leanne M.

Published
2013
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30. Genome-wide association analysis of genetic generalized epilepsies implicates susceptibility loci at 1q43, 2p16.1, 2q22.3 and 17q21.32

Author

Steffens, Michael, Leu, Costin, Ruppert, Ann-Kathrin, Zara, Federico, Striano, Pasquale, Robbiano, Angela, Capovilla, Giuseppe, Tinuper, Paolo, Gambardella, Antonio, Bianchi, Amedeo, La Neve, Angela, Crichiutti, Giovanni, de Kovel, Carolien G.F., Kasteleijn-Nolst Trenité, Dorothée, de Haan, Gerrit-Jan, Lindhout, Dick, Gaus, Verena, Schmitz, Bettina, Janz, Dieter, Weber, Yvonne G., Becker, Felicitas, Lerche, Holger, Steinhoff, Bernhard J., Kleefu-Lie, Ailing A., Kunz, Wolfram S., Surges, Rainer, Elger, Christian E., Muhle, Hiltrud, von Spiczak, Sarah, Ostertag, Philipp, Helbig, Ingo, Stephani, Ulrich, Møller, Rikke S., Hjalgrim, Helle, Dibbens, Leanne M., Bellows, Susannah, Oliver, Karen, Mullen, Saul, Scheffer, Ingrid E., Berkovic, Samuel F., Everett, Kate V., Gardiner, Mark R., Marini, Carla, Guerrini, Renzo, Lehesjoki, Anna-Elina, Siren, Auli, Guipponi, Michel, Malafosse, Alain, Thomas, Pierre, Nabbout, Rima, Baulac, Stephanie, Leguern, Eric, Guerrero, Rosa, Serratosa, Jose M., Reif, Philipp S., Rosenow, Felix, Mörzinger, Martina, Feucht, Martha, Zimprich, Fritz, Kapser, Claudia, Schankin, Christoph J., Suls, Arvid, Smets, Katrin, De Jonghe, Peter, Jordanova, Albena, Caglayan, Hande, Yapici, Zuhal, Yalcin, Destina A., Baykan, Betul, Bebek, Nerses, Ozbek, Ugur, Gieger, Christian, Wichmann, Heinz-Erich, Balschun, Tobias, Ellinghaus, David, Franke, Andre, Meesters, Christian, Becker, Tim, Wienker, Thomas F., Hempelmann, Anne, Schulz, Herbert, Rüschendorf, Franz, Leber, Markus, Pauck, Steffen M., Trucks, Holger, Toliat, Mohammad R., Nürnberg, Peter, Avanzini, Giuliano, Koeleman, Bobby P.C., and Sander, Thomas

Published
2012
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33. Genome-wide linkage meta-analysis identifies susceptibility loci at 2q34 and 13q31.3 for genetic generalized epilepsies

Author

Leu, Costin, de Kovel, Carolien G.F., Zara, Federico, Striano, Pasquale, Pezzella, Marianna, Robbiano, Angela, Bianchi, Amedeo, Bisulli, Francesca, Coppola, Antonietta, Giallonardo, Anna Teresa, Beccaria, Francesca, Trenité, Dorothée Kasteleijn-Nolst, Lindhout, Dick, Gaus, Verena, Schmitz, Bettina, Janz, Dieter, Weber, Yvonne G., Becker, Felicitas, Lerche, Holger, Kleefu-Lie, Ailing A., Hallman, Kerstin, Kunz, Wolfram S., Elger, Christian E., Muhle, Hiltrud, Stephani, Ulrich, Mller, Rikke S., Hjalgrim, Helle, Mullen, Saul, Scheffer, Ingrid E., Berkovic, Samuel F., Everett, Kate V., Gardiner, Mark R., Marini, Carla, Guerrini, Renzo, Lehesjoki, Anna-Elina, Siren, Auli, Nabbout, Rima, Baulac, Stephanie, Leguern, Eric, Serratosa, Jose M., Rosenow, Felix, Feucht, Martha, Unterberger, Iris, Covanis, Athanasios, Suls, Arvid, Weckhuysen, Sarah, Kaneva, Radka, Caglayan, Hande, Turkdogan, Dilsad, Baykan, Betul, Bebek, Nerses, Ozbek, Ugur, Hempelmann, Anne, Schulz, Herbert, Rüschendorf, Franz, Trucks, Holger, Nürnberg, Peter, Avanzini, Giuliano, Koeleman, Bobby P.C., and Sander, Thomas

Published
2012
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35. Inherited RORB pathogenic variants: Overlap of photosensitive genetic generalized and occipital lobe epilepsy

Author

Sadleir, Lynette G., primary, de Valles‐Ibáñez, Guillem, additional, King, Chontelle, additional, Coleman, Matthew, additional, Mossman, Stuart, additional, Paterson, Sarah, additional, Nguyen, John, additional, Berkovic, Samuel F., additional, Mullen, Saul, additional, Bahlo, Melanie, additional, Hildebrand, Michael S., additional, Mefford, Heather C., additional, and Scheffer, Ingrid E., additional

Published
2020
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41. No evidence for a BRD2 promoter hypermethylation inblood leukocytes of Europeans with juvenile myoclonic epilepsy

Author

Schulz, Herbert, Ruppert, Ann-Kathrin, Zara, Federico, Madia, Francesca, Iacomino, Michele, Vari, Maria S., Balagura, Ganna, Minetti, Carlo, Striano, Pasquale, Blanche, Amedeo, Marini, Carla, Guerrini, Renzo, Weber, Yvonne G., Becker, Felicitas, Lerche, Holger, Kapser, Claudia, Schankin, Christoph J., Kunz, Wolfram S., Moller, Rikke S., Oliver, Karen L., Bellows, Susannah T., Mullen, Saul A., Berkovic, Samuel F., Scheffer, Ingrid E., Caglayan, Hande, Ozbek, Ugur, Hoffmann, Per, Schramm, Sara, Tsortouktzidis, Despina, Becker, Albert J., Sander, Thomas, Schulz, Herbert, Ruppert, Ann-Kathrin, Zara, Federico, Madia, Francesca, Iacomino, Michele, Vari, Maria S., Balagura, Ganna, Minetti, Carlo, Striano, Pasquale, Blanche, Amedeo, Marini, Carla, Guerrini, Renzo, Weber, Yvonne G., Becker, Felicitas, Lerche, Holger, Kapser, Claudia, Schankin, Christoph J., Kunz, Wolfram S., Moller, Rikke S., Oliver, Karen L., Bellows, Susannah T., Mullen, Saul A., Berkovic, Samuel F., Scheffer, Ingrid E., Caglayan, Hande, Ozbek, Ugur, Hoffmann, Per, Schramm, Sara, Tsortouktzidis, Despina, Becker, Albert J., and Sander, Thomas

Abstract

Juvenile myoclonic epilepsy (JME) is a common syndrome of genetic generalized epilepsies (GGEs). Linkage and association studies suggest that the gene encoding the bromodomain-containing protein 2 (BRD2) may increase risk of JME. The present methylation and association study followed up a recent report highlighting that the BRD2 promoter CpG island (CpG76) is differentially hypermethylated in lymphoblastoid cells from Caucasian patients with JME compared to patients with other GGE subtypes and unaffected relatives. In contrast, we found a uniform low average percentage of methylation (<4.5%) for 13 CpG76-CpGs in whole blood cells from 782 unrelated European Caucasians, including 116 JME patients, 196 patients with genetic absence epilepsies, and 470 control subjects. We also failed to confirm an allelic association of the BRD2 promoter single nucleotide polymorphism (SNP) rs3918149 with JME (Armitage trend test, P=0.98), and we did not detect a substantial impact of SNP rs3918149 on CpG76 methylation in either 116 JME patients (methylation quantitative trait loci [meQTL], P=0.29) or 470 German control subjects (meQTL, P=0.55). Our results do not support the previous observation that a high DNA methylation level of the BRD2 promoter CpG76 island is a prevalent epigenetic motif associated with JME in Caucasians.

Published
2019

42. Bilateral volume reduction in posterior hippocampus in psychosis of epilepsy

Author

Allebone, James, primary, Kanaan, Richard, additional, Maller, Jerome, additional, O'Brien, Terry, additional, Mullen, Saul Alator, additional, Cook, Mark, additional, Adams, Sophia J, additional, Vogrin, Simon, additional, Vaughan, David N, additional, Connelly, Alan, additional, Kwan, Patrick, additional, Berkovic, S F, additional, D'Souza, Wendyl J, additional, Jackson, Graeme, additional, Velakoulis, Dennis, additional, and Wilson, Sarah J, additional

Published
2019
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43. No evidence for a BRD 2 promoter hypermethylation in blood leukocytes of Europeans with juvenile myoclonic epilepsy

Author

Schulz, Herbert, primary, Ruppert, Ann‐Kathrin, additional, Zara, Federico, additional, Madia, Francesca, additional, Iacomino, Michele, additional, S. Vari, Maria, additional, Balagura, Ganna, additional, Minetti, Carlo, additional, Striano, Pasquale, additional, Bianchi, Amedeo, additional, Marini, Carla, additional, Guerrini, Renzo, additional, Weber, Yvonne G., additional, Becker, Felicitas, additional, Lerche, Holger, additional, Kapser, Claudia, additional, Schankin, Christoph J., additional, Kunz, Wolfram S., additional, Møller, Rikke S., additional, Oliver, Karen L., additional, Bellows, Susannah T., additional, Mullen, Saul A., additional, Berkovic, Samuel F., additional, Scheffer, Ingrid E., additional, Caglayan, Hande, additional, Ozbek, Ugur, additional, Hoffmann, Per, additional, Schramm, Sara, additional, Tsortouktzidis, Despina, additional, Becker, Albert J., additional, and Sander, Thomas, additional

Published
2019
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47. Precision therapy for epilepsy due to KCNT1 mutations

Author

Mullen, Saul A., primary, Carney, Patrick W., additional, Roten, Annie, additional, Ching, Michael, additional, Lightfoot, Paul A., additional, Churilov, Leonid, additional, Nair, Umesh, additional, Li, Melody, additional, Berkovic, Samuel F., additional, Petrou, Steven, additional, and Scheffer, Ingrid E., additional

Published
2017
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48. Genome-wide association analysis of genetic generalized epilepsies implicates susceptibility loci at 1q43, 2p16.1, 2q22.3 and 17q21.32

Author

Steffens, Michael, Leu, Costin, Ruppert, Ann-Kathrin, Zara, Federico, Striano, Pasquale, Robbiano, Angela, Capovilla, Giuseppe, Tinuper, Paolo, Gambardella, Antonio, Bianchi, Amedeo, La Neve, Angela, Crichiutti, Giovanni, de Kovel, Carolien G.F., Kasteleijn-Nolst Trenité, Dorothée, de Haan, Gerrit-Jan, Lindhout, Dick, Gaus, Verena, Schmitz, Bettina, Janz, Dieter, Weber, Yvonne G., Becker, Felicitas, Lerche, Holger, Steinhoff, Bernhard J., Kleefuß-Lie, Ailing A., Kunz, Wolfram S., Surges, Rainer, Elger, Christian E., Muhle, Hiltrud, von Spiczak, Sarah, Ostertag, Philipp, Helbig, Ingo, Stephani, Ulrich, Møller, Rikke S., Hjalgrim, Helle, Dibbens, Leanne M., Bellows, Susannah, Oliver, Karen, Mullen, Saul, Scheffer, Ingrid E., Berkovic, Samuel F., Everett, Kate V., Gardiner, Mark R., Marini, Carla, Guerrini, Renzo, Lehesjoki, Anna-Elina, Siren, Auli, Guipponi, Michel, Malafosse, Alain, Thomas, Pierre, Nabbout, Rima, Baulac, Stephanie, Leguern, Eric, Guerrero, Rosa, Serratosa, Jose M., Reif, Philipp S., Rosenow, Felix, Mörzinger, Martina, Feucht, Martha, Zimprich, Fritz, Kapser, Claudia, Schankin, Christoph J., Suls, Arvid, Smets, Katrin, De Jonghe, Peter, Jordanova, Albena, Caglayan, Hande, Yapici, Zuhal, Yalcin, Destina A., Baykan, Betul, Bebek, Nerses, Ozbek, Ugur, Gieger, Christian, Wichmann, Heinz-Erich, Balschun, Tobias, Ellinghaus, David, Franke, Andre, Meesters, Christian, Becker, Tim, Wienker, Thomas F., Hempelmann, Anne, Schulz, Herbert, Rüschendorf, Franz, Leber, Markus, Pauck, Steffen M., Trucks, Holger, Toliat, Mohammad R., Nürnberg, Peter, Avanzini, Giuliano, Koeleman, Bobby P.C., Sander, Thomas, Steffens, Michael, Leu, Costin, Ruppert, Ann-Kathrin, Zara, Federico, Striano, Pasquale, Robbiano, Angela, Capovilla, Giuseppe, Tinuper, Paolo, Gambardella, Antonio, Bianchi, Amedeo, La Neve, Angela, Crichiutti, Giovanni, de Kovel, Carolien G.F., Kasteleijn-Nolst Trenité, Dorothée, de Haan, Gerrit-Jan, Lindhout, Dick, Gaus, Verena, Schmitz, Bettina, Janz, Dieter, Weber, Yvonne G., Becker, Felicitas, Lerche, Holger, Steinhoff, Bernhard J., Kleefuß-Lie, Ailing A., Kunz, Wolfram S., Surges, Rainer, Elger, Christian E., Muhle, Hiltrud, von Spiczak, Sarah, Ostertag, Philipp, Helbig, Ingo, Stephani, Ulrich, Møller, Rikke S., Hjalgrim, Helle, Dibbens, Leanne M., Bellows, Susannah, Oliver, Karen, Mullen, Saul, Scheffer, Ingrid E., Berkovic, Samuel F., Everett, Kate V., Gardiner, Mark R., Marini, Carla, Guerrini, Renzo, Lehesjoki, Anna-Elina, Siren, Auli, Guipponi, Michel, Malafosse, Alain, Thomas, Pierre, Nabbout, Rima, Baulac, Stephanie, Leguern, Eric, Guerrero, Rosa, Serratosa, Jose M., Reif, Philipp S., Rosenow, Felix, Mörzinger, Martina, Feucht, Martha, Zimprich, Fritz, Kapser, Claudia, Schankin, Christoph J., Suls, Arvid, Smets, Katrin, De Jonghe, Peter, Jordanova, Albena, Caglayan, Hande, Yapici, Zuhal, Yalcin, Destina A., Baykan, Betul, Bebek, Nerses, Ozbek, Ugur, Gieger, Christian, Wichmann, Heinz-Erich, Balschun, Tobias, Ellinghaus, David, Franke, Andre, Meesters, Christian, Becker, Tim, Wienker, Thomas F., Hempelmann, Anne, Schulz, Herbert, Rüschendorf, Franz, Leber, Markus, Pauck, Steffen M., Trucks, Holger, Toliat, Mohammad R., Nürnberg, Peter, Avanzini, Giuliano, Koeleman, Bobby P.C., and Sander, Thomas

Abstract

Genetic generalized epilepsies (GGEs) have a lifetime prevalence of 0.3% and account for 20-30% of all epilepsies. Despite their high heritability of 80%, the genetic factors predisposing to GGEs remain elusive. To identify susceptibility variants shared across common GGE syndromes, we carried out a two-stage genome-wide association study (GWAS) including 3020 patients with GGEs and 3954 controls of European ancestry. To dissect out syndrome-related variants, we also explored two distinct GGE subgroups comprising 1434 patients with genetic absence epilepsies (GAEs) and 1134 patients with juvenile myoclonic epilepsy (JME). Joint Stage-1 and 2 analyses revealed genome-wide significant associations for GGEs at 2p16.1 (rs13026414, Pmeta = 2.5 × 10−9, OR[T] = 0.81) and 17q21.32 (rs72823592, Pmeta = 9.3 × 10−9, OR[A] = 0.77). The search for syndrome-related susceptibility alleles identified significant associations for GAEs at 2q22.3 (rs10496964, Pmeta = 9.1 × 10−9, OR[T] = 0.68) and at 1q43 for JME (rs12059546, Pmeta = 4.1 × 10−8, OR[G] = 1.42). Suggestive evidence for an association with GGEs was found in the region 2q24.3 (rs11890028, Pmeta = 4.0 × 10−6) nearby the SCN1A gene, which is currently the gene with the largest number of known epilepsy-related mutations. The associated regions harbor high-ranking candidate genes: CHRM3 at 1q43, VRK2 at 2p16.1, ZEB2 at 2q22.3, SCN1A at 2q24.3 and PNPO at 17q21.32. Further replication efforts are necessary to elucidate whether these positional candidate genes contribute to the heritability of the common GGE syndromes

Published
2017

49. Is FGF13 a major contributor to genetic epilepsy with febrile seizures plus?

Author

Genetica, Genetica Sectie Genoomdiagnostiek, Child Health, Rigbye, Kristin A., van Hasselt, Peter M., Burgess, Rosemary, Damiano, John A., Mullen, Saul A., Petrovski, Slavé, Puranam, Ram S., van Gassen, Koen L I, Gecz, Jozef, Scheffer, Ingrid E., McNamara, James O., Berkovic, Samuel F., Hildebrand, Michael S., Genetica, Genetica Sectie Genoomdiagnostiek, Child Health, Rigbye, Kristin A., van Hasselt, Peter M., Burgess, Rosemary, Damiano, John A., Mullen, Saul A., Petrovski, Slavé, Puranam, Ram S., van Gassen, Koen L I, Gecz, Jozef, Scheffer, Ingrid E., McNamara, James O., Berkovic, Samuel F., and Hildebrand, Michael S.

Published
2016

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