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1,435 results on '"Wolfram, S"'

1. Rasmussen’s encephalitis: structural, functional, and clinical correlates of contralesional epileptiform activity

Author

Bauer, Tobias, von Wrede, Randi D., Pujar, Suresh, Rácz, Attila, Hoppe, Christian, Baumgartner, Tobias, Varadkar, Sophia, Held, Nina R., Reiter, Johannes T., Enders, Selma, David, Bastian, Prillwitz, Conrad C., Brugues, Mar, Keil, Vera C. W., Jeub, Monika, Borger, Valeri, Sander, Josemir W., Kunz, Wolfram S., Radbruch, Alexander, Weber, Bernd, Helmstaedter, Christoph, Vatter, Hartmut, Baldeweg, Torsten, Becker, Albert J., Cross, J. Helen, Surges, Rainer, and Rüber, Theodor

Published
2024
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3. Secondary structure of the human mitochondrial genome affects formation of deletions

Author

Shamanskiy, Victor, Mikhailova, Alina A., Tretiakov, Evgenii O., Ushakova, Kristina, Mikhailova, Alina G., Oreshkov, Sergei, Knorre, Dmitry A., Ree, Natalia, Overdevest, Jonathan B., Lukowski, Samuel W., Gostimskaya, Irina, Yurov, Valerian, Liou, Chia-Wei, Lin, Tsu-Kung, Kunz, Wolfram S., Reymond, Alexandre, Mazunin, Ilya, Bazykin, Georgii A., Fellay, Jacques, Tanaka, Masashi, Khrapko, Konstantin, Gunbin, Konstantin, and Popadin, Konstantin

Published
2023
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4. 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

5. De Novo Variants in RAB11B Cause Various Degrees of Global Developmental Delay and Intellectual Disability in Children

Author

Ahmad, Natalie, Fazeli, Walid, Schließke, Sophia, Lesca, Gaetan, Gokce-Samar, Zeynep, Mekbib, Kedous Y., Jin, Sheng Chih, Burton, Jennifer, Hoganson, George, Petersen, Andrea, Gracie, Sara, Granger, Leslie, Bartels, Enrika, Oppermann, Henry, Kundishora, Adam, Till, Marianne, Milleret-Pignot, Clara, Dangerfield, Shane, Viskochil, David, Anderson, Katherine J., Palculict, Timothy Blake, Schnur, Rhonda E., Wentzensen, Ingrid M., Tiller, George E., Kahle, Kristopher T., Kunz, Wolfram S., Burkart, Sebastian, Simons, Matias, Sticht, Heinrich, Abou Jamra, Rami, and Neuser, Sonja

Published
2023
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6. Testing for pharmacogenomic predictors of ppRNFL thinning in individuals exposed to vigabatrin

Author

Isabelle Boothman, Lisa M. Clayton, Mark McCormack, Alexandra McKibben Driscoll, Remi Stevelink, Patrick Moloney, Roland Krause, Wolfram S. Kunz, Sarah Diehl, Terence J. O’Brien, Graeme J. Sills, Gerrit-Jan de Haan, Federico Zara, Bobby P. Koeleman, Chantal Depondt, Anthony G. Marson, Hreinn Stefansson, Kari Stefansson, John Craig, Michael R. Johnson, Pasquale Striano, Holger Lerche, Simon J. Furney, Norman Delanty, Consortium EpiPGX, Sanjay M. Sisodiya, Gianpiero L. Cavalleri, Joseph Willis, Mojgansadat Borghei, Simona Donatello, Martin J. Brodie, Pauls Auce, Andrea Jorgensen, Sarah R. Langley, Yvonne Weber, Christian Hengsbach, Martin Krenn, Fritz Zimprich, Ekaterina Pataraia, Karl Martin Klein, Hiltrud Muhle, Rikke S. Møller, Marina Nikanorova, Stefan Wolking, Ellen Campbell, Antonella Riva, and Marcello Scala

Subjects
adverse drug reaction, epilepsy, retina, genome wide association study, polygenic risk score, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract

BackgroundThe anti-seizure medication vigabatrin (VGB) is effective for controlling seizures, especially infantile spasms. However, use is limited by VGB-associated visual field loss (VAVFL). The mechanisms by which VGB causes VAVFL remains unknown. Average peripapillary retinal nerve fibre layer (ppRNFL) thickness correlates with the degree of visual field loss (measured by mean radial degrees). Duration of VGB exposure, maximum daily VGB dose, and male sex are associated with ppRNFL thinning. Here we test the hypothesis that common genetic variation is a predictor of ppRNFL thinning in VGB exposed individuals. Identifying pharmacogenomic predictors of ppRNFL thinning in VGB exposed individuals could potentially enable safe prescribing of VGB and broader use of a highly effective drug.MethodsOptical coherence topography (OCT) and GWAS data were processed from VGB-exposed individuals (n = 71) recruited through the EpiPGX Consortium. We conducted quantitative GWAS analyses for the following OCT measurements: (1) average ppRNFL, (2) inferior quadrant, (3) nasal quadrant, (4) superior quadrant, (5) temporal quadrant, (6) inferior nasal sector, (7) nasal inferior sector, (8) superior nasal sector, and (9) nasal superior sector. Using the summary statistics from the GWAS analyses we conducted gene-based testing using VEGAS2. We conducted nine different PRS analyses using the OCT measurements. To determine if VGB-exposed individuals were predisposed to having a thinner RNFL, we calculated their polygenic burden for retinal thickness. PRS alleles for retinal thickness were calculated using published summary statistics from a large-scale GWAS of inner retinal morphology using the OCT images of UK Biobank participants.ResultsThe GWAS analyses did not identify a significant association after correction for multiple testing. Similarly, the gene-based and PRS analyses did not reveal a significant association that survived multiple testing.ConclusionWe set out to identify common genetic predictors for VGB induced ppRNFL thinning. Results suggest that large-effect common genetic predictors are unlikely to exist for ppRNFL thinning (as a marker of VAVFL). Sample size was a limitation of this study. However, further recruitment is a challenge as VGB is rarely used today because of this adverse reaction. Rare variants may be predictors of this adverse drug reaction and were not studied here.

Published
2023
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8. 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

10. Mitochondrial Retinopathy

Author

Birtel, Johannes, von Landenberg, Christina, Gliem, Martin, Gliem, Carla, Reimann, Jens, Kunz, Wolfram S., Herrmann, Philipp, Betz, Christian, Caswell, Richard, Nesbitt, Victoria, Kornblum, Cornelia, and Charbel Issa, Peter

Published
2022
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11. 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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12. 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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21. 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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23. Identification of galectin-3 as a novel potential prognostic/predictive biomarker and therapeutic target for cerebral cavernous malformation disease

Author

Kar, Souvik, primary, Perrelli, Andrea, additional, Bali, Kiran Kumar, additional, Mastrocola, Raffaella, additional, Kar, Arpita, additional, Khan, Bushra, additional, Gand, Luis, additional, Nayak, Arnab, additional, Hartmann, Christian, additional, Kunz, Wolfram S., additional, Samii, Amir, additional, Bertalanffy, Helmut, additional, and Retta, Saverio Francesco, additional

Published
2024
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24. Computational Foundations for the Second Law of Thermodynamics.

Author

Wolfram, S.

Subjects
QUANTUM mechanics, GENERAL relativity (Physics), TWENTIETH century, PHYSICS, EXPLANATION
Abstract

A fundamental explanation for the Second Law is given in terms of the interplay between the phenomenon of computational irreducibility in underlying processes and the computational boundedness of us as observers. This explanation appears to significantly clarify the character and origin of the Second Law and to resolve core aspects of it that were previously mysterious. The approach used allows the Second Law to be broadly generalized beyond its traditional framing in terms of the dynamics of heat--though the approach also suggests limitations to the Second Law, notably in connection with what is termed here the mechanoidal phase. Drawing on some of our other recent work, it is suggested that all three major theories of twentieth-century physics--general relativity, quantum mechanics and statistical mechanics--are ultimately analogous in their foundations and are all derivable from the interplay between computational irreducibility and our characteristics as observers. [ABSTRACT FROM AUTHOR]

Published
2024
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25. Mitochondrial mutation spectrum in Chordates: damage versus replication signatures, causes, and dynamics

Author

Iliushchenko, Dmitrii, primary, Efimenko, Bogdan, additional, Mikhailova, Alina G., additional, Shamanskiy, Victor, additional, Saparbaev, Murat K., additional, Mazunin, Ilya, additional, Knorre, Dmitrii, additional, Kunz, Wolfram S., additional, Kapranov, Philipp, additional, Denisov, Stepan, additional, Fellay, Jacques, additional, Khrapko, Konstantin, additional, Gunbin, Konstantin, additional, and Popadin, Konstantin, additional

Published
2023
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26. Genomic and clinical predictors of lacosamide response in refractory epilepsies

Author

Sinéad B. Heavin, Mark McCormack, Stefan Wolking, Lisa Slattery, Nicole Walley, Andreja Avbersek, Jan Novy, Saurabh R. Sinha, Rod Radtke, Colin Doherty, Pauls Auce, John Craig, Michael R. Johnson, Bobby P. C. Koeleman, Roland Krause, Wolfram S. Kunz, Anthony G. Marson, Terence J. O'Brien, Josemir W. Sander, Graeme J. Sills, Hreinn Stefansson, Pasquale Striano, Federico Zara, EPIGEN Consortium, EpiPGX Consortium, Chantal Depondt, Sanjay Sisodiya, David Goldstein, Holger Lerche, Gianpiero L. Cavalleri, and Norman Delanty

Subjects
GWAS, lacosamide, pharmacogenomics, pharmacoresistance, refractory, Neurology. Diseases of the nervous system, RC346-429
Abstract

Abstract Objective Clinical and genetic predictors of response to antiepileptic drugs (AEDs) are largely unknown. We examined predictors of lacosamide response in a real‐world clinical setting. Methods We tested the association of clinical predictors with treatment response using regression modeling in a cohort of people with refractory epilepsy. Genetic assessment for lacosamide response was conducted via genome‐wide association studies and exome studies, comprising 281 candidate genes. Results Most patients (479/483) were treated with LCM in addition to other AEDs. Our results corroborate previous findings that patients with refractory genetic generalized epilepsy (GGE) may respond to treatment with LCM. No clear clinical predictors were identified. We then compared 73 lacosamide responders, defined as those experiencing greater than 75% seizure reduction or seizure freedom, to 495 nonresponders (

Published
2019
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27. Genotypes and phenotypes of patients with Lafora disease living in Germany

Author

David Brenner, Tobias Baumgartner, Sarah von Spiczak, Jan Lewerenz, Roger Weis, Anja Grimmer, Petra Gaspirova, Claudia D. Wurster, Wolfram S. Kunz, Jan Wagner, Berge A. Minassian, Christian E. Elger, Albert C. Ludolph, Saskia Biskup, and Dennis Döcker

Subjects
Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571, Neurology. Diseases of the nervous system, RC346-429
Abstract

Abstract Background Lafora progressive myoclonus epilepsy (Lafora disease) is a rare, usually childhood-onset, fatal neurodegenerative disease caused by biallelic mutations in EPM2A (Laforin) or EPM2B (NHLRC1; Malin). The epidemiology of Lafora disease in Germany is largely unknown. The objective of this retrospective case series is to characterize the genotypes and phenotypes of patients with Lafora disease living in Germany. Methods The patients described in this case series initially had the suspected clinical diagnosis of Lafora disease, or unclassified progressive myoclonus epilepsy. Molecular genetic diagnostics including next generation sequencing-based diagnostic panel analysis or whole exome sequencing was performed. Results The parents of four out of the 11 patients are nonconsanguineous and of German origin while the other patients had consanguineous parents. Various variants were found in EPM2A (six patients) and in EPM2B (five patients). Eight variants have not been reported in the literature so far. The patients bearing novel variants had typical disease onset during adolescence and show classical disease courses. Conclusions This is the first larger case series of Lafora patients in Germany. Our data enable an approximation of the prevalence of manifest Lafora disease in Germany to 1,69 per 10 million people. Broader application of gene panel or whole-exome diagnostics helps clarifying unclassified progressive myoclonus epilepsy and establish an early diagnosis, which will be even more important as causal therapy approaches have been developed and are soon to be tested in a phase I study.

Published
2019
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28. Comparative effectiveness of antiepileptic drugs in juvenile myoclonic epilepsy

Author

Katri Silvennoinen, Nikola deLange, Sara Zagaglia, Simona Balestrini, Ganna Androsova, Merel Wassenaar, Pauls Auce, Andreja Avbersek, Felicitas Becker, Bianca Berghuis, Ellen Campbell, Antonietta Coppola, Ben Francis, Stefan Wolking, Gianpiero L. Cavalleri, John Craig, Norman Delanty, Michael R. Johnson, Bobby P. C. Koeleman, Wolfram S. Kunz, Holger Lerche, Anthony G. Marson, Terence J. O’Brien, Josemir W. Sander, Graeme J. Sills, Pasquale Striano, Federico Zara, Job van derPalen, Roland Krause, Chantal Depondt, Sanjay M. Sisodiya, and the EpiPGX Consortium

Subjects
seizures, tolerability, adverse drug reactions, valproate, Neurology. Diseases of the nervous system, RC346-429
Abstract

Abstract Objective To study the effectiveness and tolerability of antiepileptic drugs (AEDs) commonly used in juvenile myoclonic epilepsy (JME). Methods People with JME were identified from a large database of individuals with epilepsy, which includes detailed retrospective information on AED use. We assessed secular changes in AED use and calculated rates of response (12‐month seizure freedom) and adverse drug reactions (ADRs) for the five most common AEDs. Retention was modeled with a Cox proportional hazards model. We compared valproate use between males and females. Results We included 305 people with 688 AED trials of valproate, lamotrigine, levetiracetam, carbamazepine, and topiramate. Valproate and carbamazepine were most often prescribed as the first AED. The response rate to valproate was highest among the five AEDs (42.7%), and significantly higher than response rates for lamotrigine, carbamazepine, and topiramate; the difference to the response rate to levetiracetam (37.1%) was not significant. The rates of ADRs were highest for topiramate (45.5%) and valproate (37.5%). Commonest ADRs included weight change, lethargy, and tremor. In the Cox proportional hazards model, later start year (1.10 [1.08‐1.13], P

Published
2019
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29. Role of Common Genetic Variants for Drug-Resistance to Specific Anti-Seizure Medications

Author

Stefan Wolking, Ciarán Campbell, Caragh Stapleton, Mark McCormack, Norman Delanty, Chantal Depondt, Michael R. Johnson, Bobby P. C. Koeleman, Roland Krause, Wolfram S. Kunz, Anthony G. Marson, Josemir W. Sander, Graeme J. Sills, Pasquale Striano, Federico Zara, Sanjay M. Sisodiya, Gianpiero L. Cavalleri, Holger Lerche, and EpiPGX Consortium

Subjects
drug-resistant epilepsies, polygenic risk score (PRS), GWAS, anti-seizure medication (ASM), single nucelotide polymorphisms, Therapeutics. Pharmacology, RM1-950
Abstract

Objective: Resistance to anti-seizure medications (ASMs) presents a significant hurdle in the treatment of people with epilepsy. Genetic markers for resistance to individual ASMs could support clinicians to make better-informed choices for their patients. In this study, we aimed to elucidate whether the response to individual ASMs was associated with common genetic variation.Methods: A cohort of 3,649 individuals of European descent with epilepsy was deeply phenotyped and underwent single nucleotide polymorphism (SNP)-genotyping. We conducted genome-wide association analyses (GWASs) on responders to specific ASMs or groups of functionally related ASMs, using non-responders as controls. We performed a polygenic risk score (PRS) analyses based on risk variants for epilepsy and neuropsychiatric disorders and ASM resistance itself to delineate the polygenic burden of ASM-specific drug resistance.Results: We identified several potential regions of interest but did not detect genome-wide significant loci for ASM-specific response. We did not find polygenic risk for epilepsy, neuropsychiatric disorders, and drug-resistance associated with drug response to specific ASMs or mechanistically related groups of ASMs.Significance: This study could not ascertain the predictive value of common genetic variants for ASM responder status. The identified suggestive loci will need replication in future studies of a larger scale.

Published
2021
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30. Rare coding variants in genes encoding GABAA receptors in genetic generalised epilepsies: an exome-based case-control study

Author

May, Patrick, Girard, Simon, Harrer, Merle, Bobbili, Dheeraj R, Schubert, Julian, Wolking, Stefan, Becker, Felicitas, Lachance-Touchette, Pamela, Meloche, Caroline, Gravel, Micheline, Niturad, Cristina E, Knaus, Julia, De Kovel, Carolien, Toliat, Mohamad, Polvi, Anne, Iacomino, Michele, Guerrero-López, Rosa, Baulac, Stéphanie, Marini, Carla, Thiele, Holger, Altmüller, Janine, Jabbari, Kamel, Ruppert, Ann-Kathrin, Jurkowski, Wiktor, Lal, Dennis, Rusconi, Raffaella, Cestèle, Sandrine, Terragni, Benedetta, Coombs, Ian D, Reid, Christopher A, Striano, Pasquale, Caglayan, Hande, Siren, Auli, Everett, Kate, Møller, Rikke S, Hjalgrim, Helle, Muhle, Hiltrud, Helbig, Ingo, Kunz, Wolfram S, Weber, Yvonne G, Weckhuysen, Sarah, De Jonghe, Peter, Sisodiya, Sanjay M, Nabbout, Rima, Franceschetti, Silvana, Coppola, Antonietta, Vari, Maria S, Kasteleijn-Nolst Trenité, Dorothée, Baykan, Betul, Ozbek, Ugur, Bebek, Nerses, Klein, Karl M, Rosenow, Felix, Nguyen, Dang K, Dubeau, François, Carmant, Lionel, Lortie, Anne, Desbiens, Richard, Clément, Jean-François, Cieuta-Walti, Cécile, Sills, Graeme J, Auce, Pauls, Francis, Ben, Johnson, Michael R, Marson, Anthony G, Berghuis, Bianca, Sander, Josemir W, Avbersek, Andreja, McCormack, Mark, Cavalleri, Gianpiero L, Delanty, Norman, Depondt, Chantal, Krenn, Martin, Zimprich, Fritz, Peter, Sarah, Nikanorova, Marina, Kraaij, Robert, van Rooij, Jeroen, Balling, Rudi, Arfan Ikram, M, Uitterlinden, André G, Avanzini, Giuliano, Schorge, Stephanie, Petrou, Steven, Mantegazza, Massimo, Sander, Thomas, LeGuern, Eric, Serratosa, Jose M, Koeleman, Bobby P C, Palotie, Aarno, Lehesjoki, Anna-Elina, Nothnagel, Michael, Nürnberg, Peter, Maljevic, Snezana, Zara, Federico, Cossette, Patrick, Krause, Roland, Lerche, Holger, Ferlazzo, Edoardo, di Bonaventura, Carlo, La Neve, Angela, Tinuper, Paolo, Bisulli, Francesca, Vignoli, Aglaia, Capovilla, Giuseppe, Crichiutti, Giovanni, Gambardella, Antonio, Belcastro, Vincenzo, Bianchi, Amedeo, Yalçın, Destina, Dizdarer, Gulsen, Arslan, Kezban, Yapıcı, Zuhal, Kuşcu, Demet, Leu, Costin, Heggeli, Kristin, Willis, Joseph, Langley, Sarah R, Jorgensen, Andrea, Srivastava, Prashant, Rau, Sarah, Hengsbach, Christian, Sonsma, Anja C.M., Jonghe, Peter De, and Ikram, M Arfan

Published
2018
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31. Linear mitochondrial DNA is rapidly degraded by components of the replication machinery

Author

Viktoriya Peeva, Daniel Blei, Genevieve Trombly, Sarah Corsi, Maciej J. Szukszto, Pedro Rebelo-Guiomar, Payam A. Gammage, Alexei P. Kudin, Christian Becker, Janine Altmüller, Michal Minczuk, Gábor Zsurka, and Wolfram S. Kunz

Subjects
Science
Abstract

Damaged linearized mtDNA needs to be removed from the cell for mitochondrial genome stability. Here the authors shed light into the identity of the machinery responsible for rapidly degrading linearized DNA, implicating the role of mtDNA replication factors.

Published
2018
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32. Guide to the Pharmacology of Mitochondrial Potassium Channels

Author

Augustynek, Bartłomiej, Kunz, Wolfram S., Szewczyk, Adam, Barrett, James E., Editor-in-chief, Flockerzi, Veit, Series editor, Frohman, Michael A., Series editor, Geppetti, Pierangelo, Series editor, Hofmann, Franz B., Series editor, Michel, Martin C., Series editor, Page, Clive P, Series editor, Rosenthal, Walter, Series editor, Wang, KeWei, Series editor, Singh, Harpreet, editor, and Sheu, Shey-Shing, editor

Published
2017
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33. Parkinson phenotype in aged PINK1-deficient mice is accompanied by progressive mitochondrial dysfunction in absence of neurodegeneration.

Author

Gispert, Suzana, Ricciardi, Filomena, Kurz, Alexander, Azizov, Mekhman, Hoepken, Hans-Hermann, Becker, Dorothea, Voos, Wolfgang, Leuner, Kristina, Müller, Walter E, Kudin, Alexei P, Kunz, Wolfram S, Zimmermann, Annabelle, Roeper, Jochen, Wenzel, Dirk, Jendrach, Marina, García-Arencíbia, Moisés, Fernández-Ruiz, Javier, Huber, Leslie, Rohrer, Hermann, Barrera, Miguel, Reichert, Andreas S, Rüb, Udo, Chen, Amy, Nussbaum, Robert L, and Auburger, Georg

Subjects
Neurons, Mitochondria, Animals, Mice, Transgenic, Mice, Parkinson Disease, Neurodegenerative Diseases, Disease Models, Animal, Protein Kinases, Adenosine Triphosphate, Gene Expression Regulation, Phenotype, Female, Male, alpha-Synuclein, Transgenic, Disease Models, Animal, General Science & Technology
Abstract

BackgroundParkinson's disease (PD) is an adult-onset movement disorder of largely unknown etiology. We have previously shown that loss-of-function mutations of the mitochondrial protein kinase PINK1 (PTEN induced putative kinase 1) cause the recessive PARK6 variant of PD.Methodology/principal findingsNow we generated a PINK1 deficient mouse and observed several novel phenotypes: A progressive reduction of weight and of locomotor activity selectively for spontaneous movements occurred at old age. As in PD, abnormal dopamine levels in the aged nigrostriatal projection accompanied the reduced movements. Possibly in line with the PARK6 syndrome but in contrast to sporadic PD, a reduced lifespan, dysfunction of brainstem and sympathetic nerves, visible aggregates of alpha-synuclein within Lewy bodies or nigrostriatal neurodegeneration were not present in aged PINK1-deficient mice. However, we demonstrate PINK1 mutant mice to exhibit a progressive reduction in mitochondrial preprotein import correlating with defects of core mitochondrial functions like ATP-generation and respiration. In contrast to the strong effect of PINK1 on mitochondrial dynamics in Drosophila melanogaster and in spite of reduced expression of fission factor Mtp18, we show reduced fission and increased aggregation of mitochondria only under stress in PINK1-deficient mouse neurons.ConclusionThus, aging Pink1(-/-) mice show increasing mitochondrial dysfunction resulting in impaired neural activity similar to PD, in absence of overt neuronal death.

Published
2009

34. Homozygous mutation in TXNRD1 is associated with genetic generalized epilepsy

Author

Kudin, Alexei P., Baron, Gregor, Zsurka, Gábor, Hampel, Kevin G., Elger, Christian E., Grote, Alexander, Weber, Yvonne, Lerche, Holger, Thiele, Holger, Nürnberg, Peter, Schulz, Herbert, Ruppert, Ann-Kathrin, Sander, Thomas, Cheng, Qing, Arnér, Elias SJ, Schomburg, Lutz, Seeher, Sandra, Fradejas-Villar, Noelia, Schweizer, Ulrich, and Kunz, Wolfram S.

Published
2017
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35. Selenium Ameliorated Oxidized Fish Oil-Induced Lipotoxicity via the Inhibition of Mitochondrial Oxidative Stress, Remodeling of Usp4-Mediated Deubiquitination, and Stabilization of Pparα.

Author

Zhang, Dian-Guang, Kunz, Wolfram S., Lei, Xi-Jun, Zito, Ester, Zhao, Tao, Xu, Yi-Chuang, Wei, Xiao-Lei, Lv, Wu-Hong, and Luo, Zhi

Subjects
*SELENOPROTEINS, *OXIDATIVE stress, *NON-alcoholic fatty liver disease, *MITOCHONDRIA, *DEUBIQUITINATING enzymes, *ANALYSIS of triglycerides
Abstract

Aims: Studies demonstrated that oxidized fish oil (OFO) promoted oxidative stress and induced mitochondrial dysfunction and lipotoxicity, which attenuated beneficial effects of fish oil supplements in the treatment of nonalcoholic fatty liver disease (NAFLD). The current study was performed on yellow catfish, a good model to study NAFLD, and its hepatocytes to explore whether selenium (Se) could alleviate OFO-induced lipotoxicity via the inhibition of oxidative stress and determine its potential mechanism. Results: The analysis of triglycerides content, oxidative stress parameters, and histological and transmission electronic microscopy observation showed that high dietary Se supplementation alleviated OFO-induced lipotoxicity, oxidative stress, and mitochondrial injury and dysfunction. RNA-sequencing and immunoblotting analysis indicated that high dietary Se reduced OFO-induced decline of peroxisome-proliferator-activated receptor alpha (Pparα) and ubiquitin-specific protease 4 (Usp4) protein expression. High Se supplementation also alleviated OFO-induced reduction of thioredoxin reductase 2 (txnrd2) messenger RNA (mRNA) expression level and activity. The txnrd2 knockdown experiments revealed that txnrd2 mediated Se- and oxidized eicosapentaenoic acid (oxEPA)-induced changes of mitochondrial reactive oxygen species (mtROS) and further altered Usp4 mediated-deubiquitination and stabilization of Pparα, which, in turn, modulated mitochondrial fatty acid β-oxidation and metabolism. Mechanistically, Usp4 deubiquitinated Pparα and ubiquitin-proteasome-mediated Pparα degradation contributed to oxidative stress-induced mitochondrial dysfunction. Innovation: These findings uncovered a previously unknown mechanism by which Se and OFO interacted to affect lipid metabolism via the Txnrd2-mtROS-Usp4-Pparα pathway, which provides the new target for NAFLD prevention and treatment. Conclusion: Se ameliorated OFO-induced lipotoxicity via the inhibition of mitochondrial oxidative stress, remodeling of Usp4-mediated deubiquitination, and stabilization of Pparα. Antioxid. Redox Signal. 40, 433–452. [ABSTRACT FROM AUTHOR]

Published
2024
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37. Heart failure after pressure overload in autosomal-dominant desminopathies: Lessons from heterozygous DES-p.R349P knock-in mice.

Author

Florian Stöckigt, Lars Eichhorn, Thomas Beiert, Vincent Knappe, Tobias Radecke, Martin Steinmetz, Georg Nickenig, Viktoriya Peeva, Alexei P Kudin, Wolfram S Kunz, Carolin Berwanger, Lisa Kamm, Dorothea Schultheis, Ursula Schlötzer-Schrehardt, Christoph S Clemen, Rolf Schröder, and Jan W Schrickel

Subjects
Medicine, Science
Abstract

BACKGROUND:Mutations in the human desmin gene (DES) cause autosomal-dominant and -recessive cardiomyopathies, leading to heart failure, arrhythmias, and AV blocks. We analyzed the effects of vascular pressure overload in a patient-mimicking p.R349P desmin knock-in mouse model that harbors the orthologue of the frequent human DES missense mutation p.R350P. METHODS AND RESULTS:Transverse aortic constriction (TAC) was performed on heterozygous (HET) DES-p.R349P mice and wild-type (WT) littermates. Echocardiography demonstrated reduced left ventricular ejection fraction in HET-TAC (WT-sham: 69.5 ± 2.9%, HET-sham: 64.5 ± 4.7%, WT-TAC: 63.5 ± 4.9%, HET-TAC: 55.7 ± 5.4%; p

Published
2020
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40. Whole-Exome sequencing identifies GYS2 biallelic variants in individuals with suspected epilepsy

Author

Ilyas, Muhammad, Holzwarth, Dorothea, Ishaq, Rafaqat, Ali, Yasir, Habiba, Umme, Raja, Asad Mehmood, Saeed, Sadia, Abdullah, Uzma, Khan, Sadiq Noor, Ullah, Ata, Raja, Ghazala Kaukab, Baig, Shahid Mehmood, Fazeli, Walid, Kunz, Wolfram S., Shaiq, Pakeeza Arzoo, Ilyas, Muhammad, Holzwarth, Dorothea, Ishaq, Rafaqat, Ali, Yasir, Habiba, Umme, Raja, Asad Mehmood, Saeed, Sadia, Abdullah, Uzma, Khan, Sadiq Noor, Ullah, Ata, Raja, Ghazala Kaukab, Baig, Shahid Mehmood, Fazeli, Walid, Kunz, Wolfram S., and Shaiq, Pakeeza Arzoo

Abstract

Background: Adequate glucose supply is essential for brain function, therefore hypoglycemic states may lead to seizures. Since blood glucose supply for brain is buffered by liver glycogen, an impairment of liver glycogen synthesis by mutations in the liver glycogen synthase gene (GYS2) might result in a substantial neurological involvement. Here, we describe the phenotypes of affected siblings of two families harboring biallelic mutations in GYS2. Methods: Two suspected families - a multiplex Pakistani family (family A) with three affected siblings and a family of Moroccan origin (family B) with a single affected child who presented with seizures and reduced fasting blood glucose levels were genetically characterized. Whole exome sequencing (WES) was performed on the index patients, followed by Sanger sequencing-based segregation analyses on all available members of both families. Results: The variant prioritization of WES and later Sanger sequencing confirmed three mutations in the GYS2 gene (12p12.1) consistent with an autosomal recessive pattern of inheritance. A homozygous splice acceptor site variant (NM_021957.3, c. 1646 -2A>G) segregated in family A. Two novel compound heterozygous variants (NM_021957.3: c.343G>A; p.Val115Met and NM_021957.3: c.875A>T; p.Glu292Val) were detected in family B, suggesting glycogen storage disorder. A special diet designed to avoid hypoglycemia, in addition to change of the anti-seizure medication led to reduction in seizure frequency. Conclusions: This study suggests that the seizures in patients initially diagnosed with epilepsy might be directly caused, or influenced by hypoglycemia due to pathogenic variants in the GYS2 gene. © 2023 British Epilepsy Association

Published
2023

41. The Fate of Oxidative Strand Breaks in Mitochondrial DNA

Author

Trombly, Genevieve, primary, Said, Afaf Milad, additional, Kudin, Alexei P., additional, Peeva, Viktoriya, additional, Altmüller, Janine, additional, Becker, Kerstin, additional, Köhrer, Karl, additional, Zsurka, Gábor, additional, and Kunz, Wolfram S., additional

Published
2023
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44. The Fate of Oxidative Strand Breaks in Mitochondrial DNA

Author

Genevieve Trombly, Afaf Milad Said, Alexei P. Kudin, Viktoriya Peeva, Janine Altmüller, Kerstin Becker, Karl Köhrer, Gábor Zsurka, and Wolfram S. Kunz

Subjects
Physiology, Clinical Biochemistry, Cell Biology, Technology Platforms, Molecular Biology, Biochemistry, mitochondrial DNA, oxidative damage, mtDNA double-strand breaks mtDNA single-strand breaks, mtDNA degradation
Abstract

Mitochondrial DNA (mtDNA) is particularly vulnerable to somatic mutagenesis. Potential mechanisms include DNA polymerase γ (POLG) errors and the effects of mutagens, such as reactive oxygen species. Here, we studied the effects of transient hydrogen peroxide (H2O2 pulse) on mtDNA integrity in cultured HEK 293 cells, applying Southern blotting, ultra-deep short-read and long-read sequencing. In wild-type cells, 30 min after the H2O2 pulse, linear mtDNA fragments appear, representing double-strand breaks (DSB) with ends characterized by short GC stretches. Intact supercoiled mtDNA species reappear within 2–6 h after treatment and are almost completely recovered after 24 h. BrdU incorporation is lower in H2O2-treated cells compared to non-treated cells, suggesting that fast recovery is not associated with mtDNA replication, but is driven by rapid repair of single-strand breaks (SSBs) and degradation of DSB-generated linear fragments. Genetic inactivation of mtDNA degradation in exonuclease deficient POLG p.D274A mutant cells results in the persistence of linear mtDNA fragments with no impact on the repair of SSBs. In conclusion, our data highlight the interplay between the rapid processes of SSB repair and DSB degradation and the much slower mtDNA re-synthesis after oxidative damage, which has important implications for mtDNA quality control and the potential generation of somatic mtDNA deletions.

Published
2023
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45. Loss of the Immunomodulatory Transcription Factor BATF2 in Humans Is Associated with a Neurological Phenotype

Author

Gábor Zsurka, Maximilian L. T. Appel, Maximilian Nastaly, Kerstin Hallmann, Niels Hansen, Daniel Nass, Tobias Baumgartner, Rainer Surges, Gunther Hartmann, Eva Bartok, and Wolfram S. Kunz

Subjects
epilepsy, mental retardation, type I interferonopathy, neuroinflammation, transcription factor, General Medicine
Abstract

Epilepsy and mental retardation are known to be associated with pathogenic mutations in a broad range of genes that are expressed in the brain and have a role in neurodevelopment. Here, we report on a family with three affected individuals whose clinical symptoms closely resemble a neurodevelopmental disorder. Whole-exome sequencing identified a homozygous stop-gain mutation, p.Gln19*, in the BATF2 gene in the patients. The BATF2 transcription factor is predominantly expressed in macrophages and monocytes and has been reported to modulate AP-1 transcription factor-mediated pro-inflammatory responses. Transcriptome analysis showed altered base-level expression of interferon-stimulated genes in the patients’ blood, typical for type I interferonopathies. Peripheral blood mononuclear cells from all three patients demonstrated elevated responses to innate immune stimuli, which could be reproduced in CRISPR–Cas9-generated BATF2−/− human monocytic cell lines. BATF2 is, therefore, a novel disease-associated gene candidate for severe epilepsy and mental retardation related to dysregulation of immune responses, which underscores the relevance of neuroinflammation for epilepsy.

Published
2023
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47. Additional file 1 of Secondary structure of the human mitochondrial genome affects formation of deletions

Author

Shamanskiy, Victor, Mikhailova, Alina A., Tretiakov, Evgenii O., Ushakova, Kristina, Mikhailova, Alina G., Oreshkov, Sergei, Knorre, Dmitry A., Ree, Natalia, Overdevest, Jonathan B., Lukowski, Samuel W., Gostimskaya, Irina, Yurov, Valerian, Liou, Chia-Wei, Lin, Tsu-Kung, Kunz, Wolfram S., Reymond, Alexandre, Mazunin, Ilya, Bazykin, Georgii A., Fellay, Jacques, Tanaka, Masashi, Khrapko, Konstantin, Gunbin, Konstantin, and Popadin, Konstantin

Abstract

Additional file 1. Distribution of the perfect direct repeatsand deletions from MitoBreakin the major arc.

Published
2023
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48. Additional file 2 of Secondary structure of the human mitochondrial genome affects formation of deletions

Author

Shamanskiy, Victor, Mikhailova, Alina A., Tretiakov, Evgenii O., Ushakova, Kristina, Mikhailova, Alina G., Oreshkov, Sergei, Knorre, Dmitry A., Ree, Natalia, Overdevest, Jonathan B., Lukowski, Samuel W., Gostimskaya, Irina, Yurov, Valerian, Liou, Chia-Wei, Lin, Tsu-Kung, Kunz, Wolfram S., Reymond, Alexandre, Mazunin, Ilya, Bazykin, Georgii A., Fellay, Jacques, Tanaka, Masashi, Khrapko, Konstantin, Gunbin, Konstantin, and Popadin, Konstantin

Abstract

Additional file 2. The third principal component scores, associated with aging-related deletions of healthy samples from a paper [36]. The contact, marked by the pink square, is characterized by the increased scores.

Published
2023
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49. Additional file 4 of Secondary structure of the human mitochondrial genome affects formation of deletions

Author

Shamanskiy, Victor, Mikhailova, Alina A., Tretiakov, Evgenii O., Ushakova, Kristina, Mikhailova, Alina G., Oreshkov, Sergei, Knorre, Dmitry A., Ree, Natalia, Overdevest, Jonathan B., Lukowski, Samuel W., Gostimskaya, Irina, Yurov, Valerian, Liou, Chia-Wei, Lin, Tsu-Kung, Kunz, Wolfram S., Reymond, Alexandre, Mazunin, Ilya, Bazykin, Georgii A., Fellay, Jacques, Tanaka, Masashi, Khrapko, Konstantin, Gunbin, Konstantin, and Popadin, Konstantin

Abstract

Additional file 4. Hi-C contact matrix of mtDNA obtained from the human olfactory epithelium autopsies. The top row represents two contact matrixes from covid patients, middle and bottom rows represent the contact matrices from controls. Solid white squares mark the potential contact zone. Dotted white rectangles mark the contacts, emphasizing the circularity of AQmtDNA.

Published
2023
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50. Additional file 3 of Secondary structure of the human mitochondrial genome affects formation of deletions

Author

Shamanskiy, Victor, Mikhailova, Alina A., Tretiakov, Evgenii O., Ushakova, Kristina, Mikhailova, Alina G., Oreshkov, Sergei, Knorre, Dmitry A., Ree, Natalia, Overdevest, Jonathan B., Lukowski, Samuel W., Gostimskaya, Irina, Yurov, Valerian, Liou, Chia-Wei, Lin, Tsu-Kung, Kunz, Wolfram S., Reymond, Alexandre, Mazunin, Ilya, Bazykin, Georgii A., Fellay, Jacques, Tanaka, Masashi, Khrapko, Konstantin, Gunbin, Konstantin, and Popadin, Konstantin

Abstract

Additional file 3. Hi-C contact matrix of mtDNA obtained from the human lymphoblastoid cells. Dotted squares mark the potential contact zones. Ovals mark the contacts, emphasizing the circularity of mtDNA.

Published
2023
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