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29 results on '"Janz, D."'

1. Adapting the Linearised Laplace Model Evidence for Modern Deep Learning

Author

Antorán, J., Janz, D., Allingham, J.U., Daxberger, E., Barbano, R., Nalisnick, E., Hernández-Lobato, J.M., and Amsterdam Machine Learning lab (IVI, FNWI)

Subjects
FOS: Computer and information sciences, Computer Science - Machine Learning, Artificial Intelligence (cs.AI), Statistics - Machine Learning, Computer Science - Artificial Intelligence, Machine Learning (stat.ML), Machine Learning (cs.LG)
Abstract

The linearised Laplace method for estimating model uncertainty has received renewed attention in the Bayesian deep learning community. The method provides reliable error bars and admits a closed-form expression for the model evidence, allowing for scalable selection of model hyperparameters. In this work, we examine the assumptions behind this method, particularly in conjunction with model selection. We show that these interact poorly with some now-standard tools of deep learning--stochastic approximation methods and normalisation layers--and make recommendations for how to better adapt this classic method to the modern setting. We provide theoretical support for our recommendations and validate them empirically on MLPs, classic CNNs, residual networks with and without normalisation layers, generative autoencoders and transformers., Comment: Paper appearing at ICML 2022

Published
2022

2. An analysis and evaluation of the WeFold collaborative for protein structure prediction and its pipelines in CASP11 and CASP12

Author

Keasar, C, McGuffin, LJ, Wallner, B, Chopra, G, Adhikari, B, Bhattacharya, D, Blake, L, Bortot, LO, Cao, R, Dhanasekaran, BK, Dimas, I, Faccioli, RA, Faraggi, E, Ganzynkowicz, R, Ghosh, S, Giełdoń, A, Golon, L, He, Y, Heo, L, Hou, J, Khan, M, Khatib, F, Khoury, GA, Kieslich, C, Kim, DE, Krupa, P, Lee, GR, Li, H, Li, J, Lipska, A, Liwo, A, Maghrabi, AHA, Mirdita, M, Mirzaei, S, Mozolewska, MA, Onel, M, Ovchinnikov, S, Shah, A, Shah, U, Sidi, T, Sieradzan, AK, Ślusarz, M, Ślusarz, R, Smadbeck, J, Tamamis, P, Trieber, N, Wirecki, T, Yin, Y, Zhang, Y, Bacardit, J, Baranowski, M, Chapman, N, Cooper, S, Defelicibus, A, Flatten, J, Koepnick, B, Popović, Z, Zaborowski, B, Baker, D, Cheng, J, Czaplewski, C, Delbem, ACB, Floudas, C, Kloczkowski, A, Ołdziej, S, Levitt, M, Scheraga, H, Seok, C, Söding, J, Vishveshwara, S, Xu, D, Caglar, A, Coral, A, MacMillan, A, Lubow, A, Failer, B, Kestemont, B, Landers, CR, Painter, CR, Garnier, C, Sellin, C, Janz, D, and Wheeler, DC

Abstract

© 2018 The Author(s). Every two years groups worldwide participate in the Critical Assessment of Protein Structure Prediction (CASP) experiment to blindly test the strengths and weaknesses of their computational methods. CASP has significantly advanced the field but many hurdles still remain, which may require new ideas and collaborations. In 2012 a web-based effort called WeFold, was initiated to promote collaboration within the CASP community and attract researchers from other fields to contribute new ideas to CASP. Members of the WeFold coopetition (cooperation and competition) participated in CASP as individual teams, but also shared components of their methods to create hybrid pipelines and actively contributed to this effort. We assert that the scale and diversity of integrative prediction pipelines could not have been achieved by any individual lab or even by any collaboration among a few partners. The models contributed by the participating groups and generated by the pipelines are publicly available at the WeFold website providing a wealth of data that remains to be tapped. Here, we analyze the results of the 2014 and 2016 pipelines showing improvements according to the CASP assessment as well as areas that require further adjustments and research.

Published
2018
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3. Exon-disrupting deletions ofNRXN1in idiopathic generalized epilepsy

Author

Møller, R.S., Weber, Y.G., Klitten, L.L., Trucks, H., Muhle, H., Kunz, W.S., Mefford, H.C., Franke, A., Kautza, M., Wolf, P., Dennig, D., Schreiber, S., Rückert, I.M., Wichmann, H.E., Ernst, J.P., Schurmann, C., Grabe, H.J., Tommerup, N., Stephani, U., Lerche, H., Hjalgrim, H., Helbig, I., Sander, T., Zimprich, F., Mörzinger, M., Feucht, M., Suls, A., Weckhuysen, S., Claes, L., Deprez, L., Smets, K., Van Dyck, T., Deconinck, T., De Jonghe, P., Velizarova, R., Dimova, P., Radionova, M., Tournev, I., Kancheva, D., Kaneva, R., Jordanova, A., Kjelgaard, D.B., Lehesjoki, A.E., Siren, A., Baulac, S., Leguern, E., Von Spiczak, S., Ostertag, P., Leber, M., Leu, C., Toliat, M.R., Nürnberg, P., Hempelmann, A., Rüschendorf, F., Elger, C.E., Kleefuß Lie, A.A., Surges, R., Gaus, V., Janz, D., Schmitz, B., Klein, K.M., Reif, P.S., Oertel, W.H., Hamer, H.M., Rosenow, F., Becker, F., Marini, C., Guerrini, R., Mei, D., Norci, V., Zara, F., Striano, P., Robbiano, A., Pezzella, M., Bianchi, A., Gambardella, A., Tinuper, P., La Neve, A., Capovilla, G., Vigliano, P., Crichiutti, G., Vanadia, F., Vignoli, A., Coppola, A., Striano, S., Giallonardo, M.T., Franceschetti, S., Belcastro, V., Benna, P., Coppola, G., De Palo, A., Ferlazzo, E., Vecchi, M., Martinelli, V., Bisulli, F., Beccaria, F., Del Giudice, E., Mancardi, M., Stranci, G., Scabar, A., Gobbi, G., Giordano, I., Koeleman, B.P.C., De Kovel, C., Lindhout, D., De Haan, G.J., Ozbeck, U., Bebek, N., Baykan, B., Ozdemir, O., Ugur, S., Kocasoy Orhan, E., Yücesan, E., Cine, N., Gokyigit, A., Gurses, C., Gul, G., Yapici, Z., Ozkara, C., Caglayan, H., Yalcin, O., Yalcin, D., Turkdogan, D., Dizdarer, G., Agan, K., R. S. Møller, Y. G. Weber, L. L. Klitten, H. Truck, H. Muhle, W. S. Kunz, H. C. Mefford, A. Franke, M. Kautza, P. Wolf, D. Dennig, S. Schreiber, I. Rückert, H. Wichmann, J. P. Ernst, C. Schurmann, H. J. Grabe, N. Tommerup, U. Stephani, H. Lerche, H. Hjalgrim, I. Helbig, T. Sander, P. Tinuper, F. Bisulli, EPICURE Consortium, Suls, Arvid, Weckhuysen, Sarah, Claes, Godelieve, Deprez, Liesbet, Smets, Katrien, Van Dyck, Tine, Deconinck, Tine, De Jonghe, Peter, Jordanova, Albena, Møller, R, Weber, Yg, Klitten, Ll, Trucks, H, Muhle, H, Kunz, W, Mefford, Hc, Franke, A, Kautza, M, Wolf, P, Dennig, D, Schreiber, S, Rückert, Im, Wichmann, He, Ernst, Jp, Schurmann, C, Grabe, Hj, Tommerup, N, Stephani, U, Lerche, H, Hjalgrim, H, Helbig, I, Sander, T, Epicure, Consortium, DEL GIUDICE, Ennio, Coppola, Antonietta, and YÜCESAN, EMRAH

Subjects
Male, Idiopathic generalized epilepsy, Neuronal, Idiopathic Generalized Epilepsy, 1q21, 1 Microdeletion, Two-hit Hypothesis, Nrxn1, Neuropsychological Tests, Immunoglobulin E, Cell Adhesion Molecules, Neuronal/genetics, Adult, Age of Onset, Anticonvulsant, Exon, 1q21.1 microdeletion, Exons/genetics, Odds Ratio, Nerve Tissue Proteins/genetics, Copy-number variation, Valproic Acid/therapeutic use, Age of Onset, Neural Cell Adhesion Molecules, genetics, DNA Copy Number Variations, Electroencephalography, Epilepsy, Genetics, biology, Triazines, Anticonvulsants/therapeutic use, Electroencephalography, genetics, Family, Female, Fructose, Exons, Middle Aged, Settore MED/39 - Neuropsichiatria Infantile, Pedigree, therapeutic use, Valproic Acid, Neurology, Settore MED/26 - Neurologia, Anticonvulsants, Epilepsy, Generalized, Female, Adult, Case-Control Studies, Cell Adhesion Molecules, Neuronal, DNA Copy Number Variations, Family, Fructose, Gene Deletion, Genotype, Humans, Infant, Microarray Analysis, Nerve Tissue Proteins, Valproic Acid, analogs /&/ derivatives/therapeutic use, Gene Deletion, Genotype, Humans, Infant, Male, Microarray Analysis, Middle Aged, Nerve Tissue Protein, therapeutic use, Case-Control Studies, Cell Adhesion Molecule, drug therapy/genetics/psychology, Exon, genetics, Neuropsychological Tests, Odds Ratio, Pedigree, Triazine, Lamotrigine, NRXN1, Topiramate, Epilepsy, Generalized/drug therapy, medicine, Allele, Biology, Gene, Generalized, Point mutation, Calcium-Binding Proteins, Odds ratio, medicine.disease, Triazines/therapeutic use, Settore MED/03 - Genetica Medica, therapeutic use, biology.protein, Fructose/analogs & derivatives, Human medicine, Neurology (clinical), Two-hit hypothesis
Abstract

Summary Purpose Neurexins are neuronal adhesion molecules located in the presynaptic terminal, where they interact with postsynaptic neuroligins to form a transsynaptic complex required for efficient neurotransmission in the brain. Recently, deletions and point mutations of the neurexin 1 (NRXN1) gene have been associated with a broad spectrum of neuropsychiatric disorders. This study aimed to investigate if NRXN1 deletions also increase the risk of idiopathic generalized epilepsies (IGEs). Methods We screened for deletions involving the NRXN1 gene in 1,569 patients with IGE and 6,201 controls using high-density oligonucleotide microarrays. Key Findings We identified exon-disrupting deletions of NRXN1 in 5 of 1,569 patients with IGE and 2 of 6,201 control individuals (p = 0.0049; odds ratio (OR) 9.91, 95% confidence interval (CI) 1.92–51.12). A complex familial segregation pattern in the IGE families was observed, suggesting that heterozygous NRXN1 deletions are susceptibility variants. Intriguingly, we identified a second large copy number variant in three of five index patients, supporting an involvement of heterogeneous susceptibility alleles in the etiology of IGE. Significance We conclude that exon-disrupting deletions of NRXN1 represent a genetic risk factor in the genetically complex predisposition of common IGE syndromes.

Published
2013
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4. Adaptation to drought in Populus: Is leaf growth a key trait?

Author

Smith, Hazel Katherine, Wildhagen, Henning, Viger, Maud, Chapman, M, Valdes-Fragoso, B, Douthe, Cyril, Cohen, David, Bure, Cyril, Brendel, Oliver, Le Thiec, Didier, Hummel, Iréne, Paulo, Joao, Schnabel, Sabine, Vendramin, V, Scalabrin, Simone, Cattonaro, Federica, Janz, D., Pollastri, S., Della Rocca, Gianni, Haworth, M., Rüger, Simon, Centritto, Mauro, Loreto, Francesco, Keurentjes, Joost, van Eeuwijk, Fred, Morgante, Michele, Flexas, Jaume, Bogeat, Marie-Béatrice, Polle, Andrea, Taylor, Gail, University of Southampton, Georg-August-University [Göttingen], Universitat de les Illes Balears (UIB), Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] (EEF), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Wageningen University and Research [Wageningen] (WUR), Applied Genomics Institute (IGA), Consiglio Nazionale delle Ricerche [Roma] (CNR), German Research Center for Environmental Health, Università degli Studi di Udine - University of Udine [Italie], and Wageningen University and Research Centre [Wageningen] (WUR)

Subjects
[SDV]Life Sciences [q-bio]
Abstract

absent

Published
2015

5. Erratum: Exon-disrupting deletions of NRXN1 in idiopathic generalized epilepsy (Epilepsia (2013) 54 (256-264) DOI:10.1111/epi.12517)

Author

Møller, R. S., Weber, Y. G., Klitten, L. L., Trucks, H., Muhle, H., Kunz, W. S., Mefford, H. C., Franke, A., Kautza, M., Wolf, P., Dennig, D., Schreiber, S., Rückert, I. -M., Wichmann, H. -E., Ernst, J. P., Schurmann, C., Grabe, H. J., Tommerup, N., Stephani, U., Lerche, H., Hjalgrim, H., Helbig, I., Sander, T., Zimprich, F., Mörzinger, M., Feucht, M., Suls, A., Weckhuysen, S., Claes, L., Deprez, L., Smets, K., Van Dyck, T., Deconinck, T., De Jonghe, P., Velizarova, R., Dimova, P., Radionova, M., Tournev, I., Kancheva, D., Kaneva, R., Jordanova, A., Kjelgaard, D. B., Lehesjoki, A. -E., Siren, A., Baulac, S., Leguern, E., Von Spiczak, S., Ostertag, P., Leber, M., Leu, C., Toliat, M. R., Nürnberg, P., Hempelmann, A., Rüschendorf, F., Elger, C. E., Kleefuß-Lie, A. A., Surges, R., Gaus, V., Janz, D., Schmitz, B., Klein, K. M., Reif, P. S., Oertel, W. H., Hamer, H. M., Rosenow, F., Becker, F., Marini, C., Guerrini, R., Mei, D., Norci, V., Zara, F., Striano, P., Robbiano, A., Pezzella, M., Bianchi, A., Gambardella, A., Tinuper, P., La Neve, A., Capovilla, G., Vigliano, P., Crichiutti, G., Vanadia, F., Vignoli, A., Coppola, A., Striano, S., Giallonardo, M. T., Franceschetti, S., Belcastro, V., Benna, P., Coppola, G., De Palo, A., Ferlazzo, E., Vecchi, M., Martinelli, V., Bisulli, F., Beccaria, F., Del Giudice, E., Mancardi, M., Stranci, G., Scabar, A., Gobbi, G., Giordano, I., Koeleman, B. P. C., De Kovel, C., Lindhout, D., De Haan, G. -J., Ozbeck, U., Bebek, N., Baykan, B., Ozdemir, O., Ugur, S., Kocasoy-Orhan, E., Yücesan, E., Cine, N., Gokyigit, A., Gurses, C., Gul, G., Yapici, Z., Ozkara, C., Caglayan, H., Yalcin, O., Yalcin, D., Turkdogan, D., Dizdarer, G., Agan, K., Møller, R. S., Weber, Y. G., Klitten, L. L., Trucks, H., Muhle, H., Kunz, W. S., Mefford, H. C., Franke, A., Kautza, M., Wolf, P., Dennig, D., Schreiber, S., Rückert, I. -M., Wichmann, H. -E., Ernst, J. P., Schurmann, C., Grabe, H. J., Tommerup, N., Stephani, U., Lerche, H., Hjalgrim, H., Helbig, I., Sander, T., Zimprich, F., Mörzinger, M., Feucht, M., Suls, A., Weckhuysen, S., Claes, L., Deprez, L., Smets, K., Van Dyck, T., Deconinck, T., De Jonghe, P., Velizarova, R., Dimova, P., Radionova, M., Tournev, I., Kancheva, D., Kaneva, R., Jordanova, A., Kjelgaard, D. B., Lehesjoki, A. -E., Siren, A., Baulac, S., Leguern, E., Von Spiczak, S., Ostertag, P., Leber, M., Leu, C., Toliat, M. R., Nürnberg, P., Hempelmann, A., Rüschendorf, F., Elger, C. E., Kleefuß-Lie, A. A., Surges, R., Gaus, V., Janz, D., Schmitz, B., Klein, K. M., Reif, P. S., Oertel, W. H., Hamer, H. M., Rosenow, F., Becker, F., Marini, C., Guerrini, R., Mei, D., Norci, V., Zara, F., Striano, P., Robbiano, A., Pezzella, M., Bianchi, A., Gambardella, A., Tinuper, P., La Neve, A., Capovilla, G., Vigliano, P., Crichiutti, G., Vanadia, F., Vignoli, A., Coppola, A., Striano, S., Giallonardo, M. T., Franceschetti, S., Belcastro, V., Benna, P., Coppola, G., De Palo, A., Ferlazzo, E., Vecchi, M., Martinelli, V., Bisulli, F., Beccaria, F., Del Giudice, E., Mancardi, M., Stranci, G., Scabar, A., Gobbi, G., Giordano, I., Koeleman, B. P. C., De Kovel, C., Lindhout, D., De Haan, G. -J., Ozbeck, U., Bebek, N., Baykan, B., Ozdemir, O., Ugur, S., Kocasoy-Orhan, E., Yücesan, E., Cine, N., Gokyigit, A., Gurses, C., Gul, G., Yapici, Z., Ozkara, C., Caglayan, H., Yalcin, O., Yalcin, D., Turkdogan, D., Dizdarer, G., and Agan, K.

Published
2013

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

Author

EPICURE Consortium, Leu C., de Kovel C. G., Zara F., Striano P., Pezzella M., Robbiano A., Bianchi A., Coppola A., Giallonardo A. T., Beccaria F., Trenité D. K., Lindhout D., Gaus V., Schmitz B., Janz D., Weber Y. G., Becker F., Lerche H., Kleefuss Lie A. A., Hallman K., Kunz W. S., Elger C. E., Muhle H., Stephani U., Møller R. S., Hjalgrim H., Mullen S., Scheffer I. E., Berkovic S. F., Everett K. V., Gardiner M. R., Marini C., Guerrini R., Lehesjoki A. E., Siren A., Nabbout R., Baulac S., Leguern E., Serratosa J. M., Rosenow F., Feucht M., Unterberger I., Covanis A., Suls A., Weckhuysen S., Kaneva R., Caglayan H., Turkdogan D., Baykan B., Bebek N., Ozbek U., Hempelmann A., Schulz H., Rüschendorf F., Trucks H., Nürnberg P., Avanzini G., Koeleman B. P., Sander T., BISULLI, FRANCESCA, TINUPER, PAOLO, YÜCESAN, EMRAH, EPICURE Consortium, Leu C., de Kovel C.G., Zara F., Striano P., Pezzella M., Robbiano A., Bianchi A., Bisulli F., Coppola A., Giallonardo A.T., Beccaria F., Trenité D.K., Lindhout D., Gaus V., Schmitz B., Janz D., Weber Y.G., Becker F., Lerche H., Kleefuss-Lie A.A., Hallman K., Kunz W.S., Elger C.E., Muhle H., Stephani U., Møller R.S., Hjalgrim H., Mullen S., Scheffer I.E., Berkovic S.F., Everett K.V., Gardiner M.R., Marini C., Guerrini R., Lehesjoki A.E., Siren A., Nabbout R., Baulac S., Leguern E., Serratosa J.M., Rosenow F., Feucht M., Unterberger I., Covanis A., Suls A., Weckhuysen S., Kaneva R., Caglayan H., Turkdogan D., Baykan B., Bebek N., Ozbek U., Hempelmann A., Schulz H., Rüschendorf F., Trucks H., Nürnberg P., Avanzini G., Koeleman B.P., Sander T., and Tinuper P.

Subjects
Male, Chromosomes, Human, Pair 13, Genotype, Genetic Linkage, Chromosome Mapping, complex inheritance, Pedigree, genetic generalized epilepsy, myoclonic seizure, Phenotype, Genetic Loci, Chromosomes, Human, Pair 2, Humans, Epilepsy, Generalized, Family, Female, Genetic Predisposition to Disease, linkage analysis, absence seizure, Genome-Wide Association Study
Abstract

PURPOSE: Genetic generalized epilepsies (GGEs) have a lifetime prevalence of 0.3% with heritability estimates of 80%. A considerable proportion of families with siblings affected by GGEs presumably display an oligogenic inheritance. The present genome-wide linkage meta-analysis aimed to map: (1) susceptibility loci shared by a broad spectrum of GGEs, and (2) seizure type-related genetic factors preferentially predisposing to either typical absence or myoclonic seizures, respectively. METHODS: Meta-analysis of three genome-wide linkage datasets was carried out in 379 GGE-multiplex families of European ancestry including 982 relatives with GGEs. To dissect out seizure type-related susceptibility genes, two family subgroups were stratified comprising 235 families with predominantly genetic absence epilepsies (GAEs) and 118 families with an aggregation of juvenile myoclonic epilepsy (JME). To map shared and seizure type-related susceptibility loci, both nonparametric loci (NPL) and parametric linkage analyses were performed for a broad trait model (GGEs) in the entire set of GGE-multiplex families and a narrow trait model (typical absence or myoclonic seizures) in the subgroups of JME and GAE families. KEY FINDINGS: For the entire set of 379 GGE-multiplex families, linkage analysis revealed six loci achieving suggestive evidence for linkage at 1p36.22, 3p14.2, 5q34, 13q12.12, 13q31.3, and 19q13.42. The linkage finding at 5q34 was consistently supported by both NPL and parametric linkage results across all three family groups. A genome-wide significant nonparametric logarithm of odds score of 3.43 was obtained at 2q34 in 118 JME families. Significant parametric linkage to 13q31.3 was found in 235 GAE families assuming recessive inheritance (heterogeneity logarithm of odds = 5.02). SIGNIFICANCE: Our linkage results support an oligogenic predisposition of familial GGE syndromes. The genetic risk factor at 5q34 confers risk to a broad spectrum of familial GGE syndromes, whereas susceptibility loci at 2q34 and 13q31.3 preferentially predispose to myoclonic seizures or absence seizures, respectively. Phenotype- genotype strategies applying narrow trait definitions in phenotypic homogeneous subgroups of families improve the prospects of disentangling the genetic basis of common familial GGE syndromes.

Published
2012

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

Author

Leu C, de Kovel CG, Zara F, Striano P, Pezzella M, Robbiano A, Bianchi A, Bisulli F, Coppola A, Giallonardo AT, Beccaria F, Trenité DK, Lindhout D, Gaus V, Schmitz B, Janz D, Weber YG, Becker F, Lerche H, Kleefuss Lie AA, Hallman K, Kunz WS, Elger CE, Muhle H, Stephani U, Møller RS, Hjalgrim H, Mullen S, Scheffer IE, Berkovic SF, Everett KV, Gardiner MR, Marini C, Guerrini R, Lehesjoki AE, Siren A, Nabbout R, Baulac S, Leguern E, Serratosa JM, Rosenow F, Feucht M, Unterberger I, Covanis A, Suls A, Weckhuysen S, Kaneva R, Caglayan H, Turkdogan D, Baykan B, Bebek N, Ozbek U, Hempelmann A, Schulz H, Rüschendorf F, Trucks H, Nürnberg P, Avanzini G, Koeleman BP, Sander T, EPICURE Consortium, COPPOLA, ANTONIETTA, DEL GIUDICE, ENNIO, Leu, C, de Kovel, Cg, Zara, F, Striano, P, Pezzella, M, Robbiano, A, Bianchi, A, Bisulli, F, Coppola, A, Giallonardo, At, Beccaria, F, Trenité, Dk, Lindhout, D, Gaus, V, Schmitz, B, Janz, D, Weber, Yg, Becker, F, Lerche, H, Kleefuss Lie, Aa, Hallman, K, Kunz, W, Elger, Ce, Muhle, H, Stephani, U, Møller, R, Hjalgrim, H, Mullen, S, Scheffer, Ie, Berkovic, Sf, Everett, Kv, Gardiner, Mr, Marini, C, Guerrini, R, Lehesjoki, Ae, Siren, A, Nabbout, R, Baulac, S, Leguern, E, Serratosa, Jm, Rosenow, F, Feucht, M, Unterberger, I, Covanis, A, Suls, A, Weckhuysen, S, Kaneva, R, Caglayan, H, Turkdogan, D, Baykan, B, Bebek, N, Ozbek, U, Hempelmann, A, Schulz, H, Rüschendorf, F, Trucks, H, Nürnberg, P, Avanzini, G, Koeleman, Bp, Sander, T, Epicure, Consortium, DEL GIUDICE, Ennio, and Coppola, Antonietta

Published
2012

8. [Untitled]

Author

Janz D

Subjects
Psychiatry and Mental health, medicine.medical_specialty, Psychoanalysis, Neurology, Philosophy, medicine, Psychosomatic medicine, Neurology (clinical)
Published
2001
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9. Investigating the molecular basis of drought tolerance in Populus: The WATBIO Populus core experiment

Author

Wildhagen, H., Smith, H., Valdes-Fragoso, M., Douthe, C., David Cohen, Oliver Brendel, Didier Le Thiec, Janz, D., Pollastrini, S., Della Roca, G., Rüger, S., Centritto, M., Loreto, F., Flexas, J., Marie-Béatrice Bogeat-Triboulot, Taylor, G., Polle, A., Georg-August-University [Göttingen], University of Southampton, University of the Balearic Islands (UIB), Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] (EEF), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Consiglio Nazionale delle Ricerche [Roma] (CNR), and German Research Center for Environmental Health

Subjects
arbre, [SDV]Life Sciences [q-bio], populus nigra, résistance à la sécheresse
Abstract

absent

Published
2013

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

Author

Steffens, M., Leu, C., Ruppert, A., Zara, F., Striano, P., Robbiano, A., Capovilla, G., Tinuper, P., Gambardella, A., Bianchi, A., La neve, A., Crichiutti, G., de kovel, C. G., Trenité, D. K. -N., de haan, G., Lindhout, D., Gaus, V., Schmitz, B., Janz, D., Weber, Y. G., Becker, F., Lerche, H., Steinhoff, B. J., Kleefuß-Lie, A. A., Kunz, W. S., Surges, R., Elger, C. E., Muhle, H., Von spiczak, S., Ostertag, P., Helbig, I., Stephani, U., Møller, R. S., Hjalgrim, H., Dibbens, L. M., Bellows, S., Oliver, K., Mullen, S., Scheffer, I. E., Berkovic, S. F., Everett, K. V., Gardiner, M. R., Marini, Chiara, Guerrini, R., Lehesjoki, A., Siren, A., Guipponi, M., Malafosse, A., Thomas, P., Nabbout, R., Baulac, S., Leguern, E., Guerrero, R., Serratosa, J. M., Reif, P. S., Rosenow, F., Mörzinger, M., Feucht, M., Zimprich, F., Kapser, C., Schankin, C. J., Suls, A., Smets, K., De jonghe, P., Jordanova, A., Caglayan, H., Yapici, Z., Yalcin, D. A., Baykan, B., Bebek, N., Ozbek, U., Gieger, C., Wichmann, H., Balschun, T., Ellinghaus, D., Franke, A., Meesters, C., Becker, T., Wienker, T. F., Hempelmann, A., Schulz, H., Rüschendorf, F., Leber, M., Pauck, S. M., Trucks, H., Toliat, M. R., Nürnberg, P., Avanzini, G., Koeleman, B. P., Sander, T., Weckhuysen, S., Claes, L., Deprez, L., Van Dyck, T., Deconinck, T., De Jonghe, P., Velizarova, R., Dimova, P., Radionova, M., Tournev, I., Kancheva, D., Kaneva, R., Lehesjoki, A. -E., von Spiczak, S., Martin Klein, K., Oertel, W. H., Hamer, H. M., Marini, C., Mei, D., Norci, V., Pezzella, M., La Neve, A., Vigliano, P., Vanadia, F., Vignoli, A., Coppola, A., Striano, S., Egeo, G., Teresa Giallonardo, M., Franceschetti, S., Belcastro, V., Benna, P., Coppola, G., De Palo, A., Ferlazzo, E., Vecchi, M., Martinelli, V., Bisulli, F., Beccaria, F., Del Giudice, E., Mancardi, M., Stranci, G., Scabar, A., Gobbi, G., Giordano, I., de Haan, G. -J., Giraldez, B. G., Ozbeck, U., Ozdemir, O., Ugur, S., Kocasoy-Orhan, E., Yücesan, E., Cine, N., Gokyigit, A., Gurses, C., Gul, G., Ozkara, C., Yalcin, O., Turkdogan, D., Dizdarer, G., Agan, K., Steffens, Michael, Leu, Costin, Ruppert, Ann-Kathrin, Zara, Frederico, Dibbens, Leanne Michelle, Sander, Thomas, EPICURE Consortium, Epicure, Consortium, DEL GIUDICE, Ennio, Steffens, M, Leu, C, Ruppert, Ak, Zara, F, Striano, P, Robbiano, A., Coppola, Antonietta, E. P. I. C. U. R. E. Consortium, E. M. I.Net Consortium, M. Steffen, C. Leu, A. Ruppert, F. Zara, P. Striano, A. Robbiano, G. Capovilla, P. Tinuper, A. Gambardella, A. Bianchi, A. L. Neve, G. Crichiutti, C. G. F, D. K. Trenité, G. d. Haan, D. Lindhout, V. Gau, B. Schmitz, D. Janz, Y. G. Weber, F. Becker, H. Lerche, B. J. Steinhoff, A. A. Kleefuß-Lie, W. S. Kunz, R. Surge, C. E. Elger, H. Muhle, S. v. Spiczak, P. Ostertag, I. Helbig, U. Stephani, R. S. Møller, H. Hjalgrim, L. M. Dibben, S. Bellow, K. Oliver, S. Mullen, I. E. Scheffer, S. F. Berkovic, K. V. Everett, M. R. Gardiner, C. Marini, R. Guerrini, A. Lehesjoki, A. Siren, M. Guipponi, A. Malafosse, P. Thoma, R. Nabbout, S. Baulac, E. Leguern, R. Guerrero, J. M. Serratosa, P. S. Reif, F. Rosenow, M. Mörzinger, M. Feucht, F. Zimprich, C. Kapser, C. J. Schankin, A. Sul, K. Smet, P. D. Jonghe, A. Jordanova, H. Caglayan, Z. Yapici, D. A. Yalcin, B. Baykan, N. Bebek, U. Ozbek, C. Gieger, H. Wichmann, T. Balschun, D. Ellinghau, A. Franke, C. Meester, T. Becker, T. F. Wienker, A. Hempelmann, H. Schulz, F. Rüschendorf, M. Leber, S. M. Pauck, H. Truck, M. R. Toliat, P. Nürnberg, G. Avanzini, B. P. C, and T. Sander

Subjects
Candidate gene, Juvenile, Genome-wide association study, Alleles, Epilepsy, ZEB2 protein, human, VRK2 protein, human, 0302 clinical medicine, genetics [Genetic Predisposition to Disease], genetics, Humans, Myoclonic Epilepsy, genetics [Epilepsy, Generalized], SCN1A protein, human, Genetics (clinical), Genetics, 0303 health sciences, genetics [Epilepsy, Absence], Myoclonic Epilepsy, Juvenile, genetics, Genetic Predisposition to Disease, General Medicine, Protein-Serine-Threonine Kinases, 3. Good health, Chemistry, Absence, genetics, Epilepsy, genetics [Myoclonic Epilepsy, Juvenile], Epilepsy, Generalized, genetics [Receptor, Muscarinic M3], genetics, NAV1.1 Voltage-Gated Sodium Channel, genetics [Homeodomain Proteins], Single-nucleotide polymorphism, genetics [NAV1.1 Voltage-Gated Sodium Channel], Protein Serine-Threonine Kinases, Biology, genetics [Protein-Serine-Threonine Kinases], 03 medical and health sciences, ddc:570, Genetic variation, medicine, Humans, Genetic Predisposition to Disease, genetics, Repressor Protein, Allele, Molecular Biology, Alleles, Zinc Finger E-box Binding Homeobox 2, 030304 developmental biology, Homeodomain Proteins, Receptor, Muscarinic M3, genetics, Protein-Serine-Threonine Kinase, genetics, Receptor, Generalized, genetics, Genome-Wide Association Study, Homeodomain Protein, Heritability, medicine.disease, NAV1.1 Voltage-Gated Sodium Channel, Repressor Proteins, genetics [Repressor Proteins], Muscarinic M3, Epilepsy, Absence, Myoclonic epilepsy, Human medicine, Juvenile myoclonic epilepsy, 030217 neurology & neurosurgery, Genome-Wide Association Study
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, P(meta) = 2.5 × 10(-9), OR[T] = 0.81) and 17q21.32 (rs72823592, P(meta) = 9.3 × 10(-9), OR[A] = 0.77). The search for syndrome-related susceptibility alleles identified significant associations for GAEs at 2q22.3 (rs10496964, P(meta) = 9.1 × 10(-9), OR[T] = 0.68) and at 1q43 for JME (rs12059546, P(meta) = 4.1 × 10(-8), OR[G] = 1.42). Suggestive evidence for an association with GGEs was found in the region 2q24.3 (rs11890028, P(meta) = 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
2012
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12. Review article

Author

Janz D

Subjects
Fetus, Pregnancy, medicine.medical_specialty, Pediatrics, business.industry, medicine.medical_treatment, Neural tube, Obstetrics and Gynecology, medicine.disease, Surgery, Epilepsy, Anticonvulsant, medicine.anatomical_structure, Pediatrics, Perinatology and Child Health, medicine, Gestation, Ingestion, Hypertelorism, medicine.symptom, business
Abstract

According to recent experiences. There are no specific teratogenic effects of antiepileptic drugs in humans. Polytherapy is associated with malformations more often than monotherapy. This does not apply to minor anomalies. Concerns regarding neural tube defects because of intrauterine valproate--or carbamazepine--exposure can be met by. Taking a careful history regarding individual or family predisposition to defects or anomalies. Dividing the daily dose into several single doses. Folate supplementation prior and during pregnancy. Antenatal monitoring. Those minor anomalies (hypertelorism, distal digital hypoplasies), which may possible be induced by antiepileptic drugs harmonize or disappear during further development. Most minor anomalies, small body measurements, small head circumferences and cognitive dysfunction are not caused by ingestion of antiepileptic drugs during pregnancy.

Published
1994
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14. Sleep Microstructure and EEG Epileptiform Activity in Patients with Juvenile Myoclonic Epilepsy

Author

E. Calia, Mario Giovanni Terzano, Salvatore Mazza, G. Mennuni, Maria Grazia Marciani, Marina Diomedi, Janz D, and Gian Luigi Gigli

Subjects
Activity Cycles, Adult, Male, medicine.medical_specialty, Adolescent, Polysomnography, Sleep, REM, Epilepsies, Myoclonic, Epilepsies, Electroencephalography, Non-rapid eye movement sleep, juvenile myoclonic epilepsy, Epilepsy, Internal medicine, medicine, Humans, Wakefulness, Sleep Microstructure, Slow-wave sleep, Cerebral Cortex, Sleep Stages, medicine.diagnostic_test, musculoskeletal, neural, and ocular physiology, Juvenile myoclonic epilepsy, REM sleep, Sleep, Sleep stages, Neurology, Neurology (clinical), Age Factors, medicine.disease, nervous system diseases, EEG epileptiform activity, Settore MED/26 - NEUROLOGIA, Arousal, Female, REM, Anesthesia, Cardiology, Myoclonic, Psychology
Abstract

Clinical and EEG manifestations of juvenile myoclonic epilepsy (JME) occur in a strict relationship to the sleep-wake cycle, particularly to transition phases (awakening, falling asleep, afternoon relaxation after work). JME manifestations are deactivated during sleep. Because arousal fluctuations during NREM sleep may be controlled by the same neurophysiologic mechanisms regulating awakening, we studied the relationship between the cyclic alternating pattern (CAP) and JME manifestations. All-night polysomnographic recordings of 10 JME patients were analyzed for variations of epileptiform EEG abnormalities in relation to sleep stages and to different microstructural variables (NCAP, CAP, phases A and B). CAP rates (ratio between total CAP duration and total NREM sleep duration) were also calculated. Average CAP rate was 46.70%, significantly higher than that (23%) of an age-matched control group. Macrostructural analysis showed only a trend toward a slight predominance of EEG epileptiform activity during slow wave sleep but no significant correlation between spiking rates and sleep stages. Microstructural analysis confirmed the CAP modulation of EEG epileptiform activity, with maximum appearance of epileptiform abnormalities during phase A CAP (normalized spiking rate = 4.00 +/- 0.98) and strong inhibition during phase B (0.06 +/- 00.6). Intermediate values were noted during NCAP (0.54 +/- 0.27). No correlation was noted between spiking rates during NREM sleep and CAP rates, possibly indicating that in JME patients the increased CAP rate may be partially independent of epileptiform EEG activity. Our data suggest that in JME patients CAP may be a neurophysiologic oscillator organizing expression of the epileptiform discharges independent of the tendency of the individual patient to produce epileptiform EEG discharges.

Published
1992
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15. Familial and sporadic 15q13.3 microdeletions in idiopathic generalized epilepsy: precedent for disorders with complex inheritance

Author

Dibbens, Lm, Mullen, S, Helbig, I, Mefford, Hc, Bayly, Ma, Bellows, S, Leu, C, Trucks, H, Obermeier, T, Wittig, M, Franke, A, Caglayan, H, Yapici, Z, Sander, T, Eichler, Ee, Scheffer, Ie, Mulley, Jc, Berkovic, Sf, De Jonghe, P, Suls, A, Hjalgrim, H, Madsen, Jm, Møller, Rs, Lehesjoki, Ae, Siren, A, Gaus, V, Janz, D, Schmitz, B, Elger, Ce, Hallmann, K, Kleefuß-Lie, Aa, Kunz, Ws, Raabe, A, Muhle, H, Ostertag, P, von Spiczak, S, Stephani, U, Lerche, H, Weber, Yg, Striano, P, Zara, F, Marini, C, Brilstra, Eh, Kastelijn-Nolst, Trenité, Koeleman, D, Bpc, de Kovel, Cgf, Lindhout, D, Swinkels, Mem, Yalcin, O, Baykan, B, Turkdogan, D, Dizdarer, G, Ozkara, C, Lee, Y, Müller-Quernheim, J, Fölster-Holst, R, Hofmann, S, Nebel, A., Schreiber, S, Schürmann, M, Rodriguez, E, Weidinger, S, Baurecht, H, Lie, Ba, Boberg, Km, Karlsen, Th., De Jonghe, Peter, Suls, Arvid, Dibbens, Leanne M, Mullen, Saul, Helbig, Ingo, Mefford, Heather C, Bayly, Marta A, Bellows, Susannah, Leu, Costin, Trucks, Holger, Obermeier, Tanja, Wittig, Michael, Franke, Andre, Caglayan, Hande, Yapici, Zuhal, Sander, Thomas, Eichler, Evan E, Scheffer, Ingrid E, Mulley, John C, and Berkovic, Samuel F

Subjects
Male, Proband, Clinical Sciences, idiopathic generalized epilepsy, European Continental Ancestry Group, Single-nucleotide polymorphism, Pedigree chart, family studies, Biology, White People, Cohort Studies, Idiopathic generalized epilepsy, Epilepsy, single nucleotide polymorphism, genetic inheritance, Genetics, medicine, inheritance, Humans, SNP, Genetic Predisposition to Disease, Molecular Biology, Genetics (clinical), seizures, Chromosomes, Human, Pair 15, Articles, General Medicine, 5q13.3 deletions, medicine.disease, Penetrance, Pedigree, Female, Human medicine, microdeletion, Chromosome Deletion, Comparative genomic hybridization
Abstract

Microdeletion at chromosomal position 15q13.3 has been described in intellectual disability, autism spectrum disorders, schizophrenia and recently in idiopathic generalized epilepsy (IGE). Using independent IGE cohorts, we first aimed to confirm the association of 15q13.3 deletions and IGE. We then set out to determine the relative occurrence of sporadic and familial cases and to examine the likelihood of having seizures for individuals with the microdeletion in familial cases. The 15q13.3 microdeletion was identified in 7 of 539 (1.3%) unrelated cases of IGE using quantitative PCR or SNP arrays and confirmed by array comparative genomic hybridization analysis using probes specific to the 15q13.3 region. The inheritance of this lesion was tracked using family studies. Of the seven microdeletions identified in probands, three were de novo, two were transmitted from an unaffected parent and in two cases the parents were unavailable. Non-penetrance of the microdeletion was identified in 4/7 pedigrees and three pedigrees included other family members with IGE who lacked the 15q13.3 deletion. The odds ratio is 68 (95% confidence interval 29-181), indicating a pathogenic lesion predisposing to epilepsy with complex inheritance and incomplete penetrance for the IGE component of the phenotype in multiplex families. Refereed/Peer-reviewed

Published
2009
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16. Methodenmix ermöglicht geringere Betriebskosten

Author

Janz, D. and Publica

Subjects
Life Cycle Management (LCM), Lebenszyklus, Herstellkosten, QFD - Quality Function Deployment
Abstract

Geht es ums Optimieren und Senken von Kosten bei langlebigen Investitionsgütern wie Schienenfahrzeugen, spielen die Phasen des Fahrzeugbetriebs und -unterhalts eine bedeutende Rolle, da hier über die Zeit kumuliert die meisten Kosten anfallen.

Published
2006

17. Product redesign using value-oriented life cycle costing

Author

Janz, D., Sihn, W., and Publica

Subjects
QFD - quality function deployment, cost analysis, Lebenszyklus, Life Cycle Costing, redesign of product
Abstract

A new redesign approach has been developed considering the perspective of a designer who wants to improve product performance over the whole life-cycle while simultaneously optimising costs. Product components can be identified which incur high costs compared to their functional value. In order to identify the optimisation potential, the methods of Value Analysis, Quality Function Deployment and Life Cycle Costing have been matched to each other and integrated into a comprehensive concept. Based on a case study of vehicles, this paper explains the theoretical approach and analyses for designers to optimise costs and conduct product redesign by using Value-Oriented Life Cycle Costing.

Published
2005

18. No evidence for a susceptibility locus for idiopathic generalized epilepsy on chromosome 18q21.1

Author

Sander, T., Windemuth, C., Schultz, H., Saar, K., Gennaro, E., Bianchi, A., Zara, F., Bulteau, C., Kaminska, A., Ville, D., Cieuta, C., Prud'homme, J.F., Dulac, O., Bate, L., Gardiner, R.M., Haan, G.J., Janssen, G.A.M.A.J., Witte, J., Halley, D.J.J., Lindhout, D., Wienker, T.F., Janz, D., and The European Consortium on the Genetics of Idiopathic Generalized Epilepsy: participating clinicians: Kjeldsen M.J., Friis M.L.

Published
2002

20. Menome search for susceptibility loci of common idiophatic generalised epilepsies

Author

Sander, T, Schulz, H, Saar, K, Gennaro, E, Raggio, M, Bianchi, A, Zara, F, Luna, D, Bulteau, C, Kaminska, A, Ville, D, Cicuta, C, Picard, F, Prud'Homme, J, Bate, L, Sundquist, A, Gardiner, R, Janssen, G, JAN DE HAAN, KASTELEIIN NOLST, T, TRENIT BADER, A, Lindhout, D, Riess, O, Wienker, T, Janz, D, Reis, A, and Magaudda, Adriana

Published
2000

21. Social Prognosis in Epilepsy Especially in Regard to Social Status and the Necessity for Institutionalization

Author

Janz D

Subjects
Adult, Employment, Hospitals, Psychiatric, Male, medicine.medical_specialty, Institutionalisation, Developmental psychology, Epilepsy, medicine, Humans, Gynecology, Seizure frequency, Incidence (epidemiology), Rehabilitation, Vocational, Prognosis, medicine.disease, Social Mobility, Hospitalization, Social Class, Neurology, Acute Disease, Chronic Disease, Female, Neurology (clinical), Psychology, Social Adjustment, Social status
Abstract

SUMMARY Investigations as to the necessity for institutionalization and the changes in social status were performed in 1965, covering all patients who had been seen for the first time in 1953, 1957 and 1961. During this follow-up period 8% of 728 patients had to be temporarily and 2.5% presumably permanently institutionalized. Among the reasons for temporary admission were mostly acute complications (increased frequency of seizures, post-ictal clouded states, acute psychoses). Among the reasons for permanent admission one found mainly irreversible mental changes (dementia). Among 432 patients who were in an employable age group 86% were employed at the time of follow-up and 15 % were unemployed. Among the 400 patients who were employed at the time they entered treatment 93% had remained employed by 1965, while 7% had become unemployed, pensioned or been referred to an institution. Ninety percent had not changed their type of employment during the follow-up period, 3% had improved their social status, while 8% had deteriorated in this respect. The positive versus negative development correlated with seizure frequency and the type of illness. Most of the patients who had risen socially had become seizure-free or shown marked improvement in seizure frequency, while in the cases of social decline, among whom one found in the majority a combination of major seizures and of psychomotor attacks, there was frequently an increased incidence of seizures as compared with the incidence at the onset of treatment. RESUME En 1965 des recherches ont ete entreprises sur la necessite des admissions aux institutions et sur les modifications de l'etat social des epileptiques, en se basant sur l'etude de tous les sujets qui ont ete vu pour la premiere fois, respectivement en 1953, 1957 et 1961. Pendant cette periode de controle, sur 728 patients, 8% ont ete temporairement admis dans un etablissement et 3% d'une facon probablement definitive. Les raisons qui ont motive l'admission temporaire etaient en grande partie dues a des complications aigues (augmentation des crises, trouble post-critique de la conscience, psychoses aigues). Les raisons d'une admission definitive etaient representees par des troubles mentaux irreversibles (dementia). Parmi les 432 patients qui etaient en âge d'avoir un emploi, 86% avaient un travail et 15% n'en avaient pas. Parmi les 400 patients qui etaient employes au moment du debut du traitement, 93% avaient garde en 1965 leur emploi, tandis que 7% l'avaient perdu, etaient a la retraite ou avaient ete transferes dans un etablissement. 90% n'ont pas change d'emploi pendant la periode de controle; 3% ont ameliore leur condition sociale alors que 8% l'ont deterioree, ceci etant en relation avec la frequence des crises et le type de la maladie. La grande majorite des sujets qui se sont eleves dans l'echelle sociale n'avaient plus de crises ou en avaient beaucoup moins; les autres au contraire qui avaient degrade leur condition sociale, avaient pour la plupart des crises majeures (major seizures) et des crises de type psychomoteur, plus nombreuses qu'avant le debut du traitement.

Published
1972
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23. ?Aufwach?-Epilepsien

Author

Janz D

Subjects
medicine.medical_specialty, business.industry, General Medicine, Sleep Wake Disorders, Audiology, Nocturnal, medicine.disease, Sleep in non-human animals, Psychiatry and Mental health, Epilepsy, Medicine, Pharmacology (medical), business, Biological Psychiatry
Published
1953
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28. RNAi-mediated suppression of isoprene emission in poplar transiently impacts phenolic metabolism under high temperature and high light intensities: a transcriptomic and metabolomic analysis

Author

Jörg-Peter Schnitzler, Andreas Kaiser, Nicolas Brüggemann, Heinz Rennenberg, Ina Zimmer, Dennis Janz, Rüdiger Hampp, Philippe Schmitt-Kopplin, Francesco Loreto, Jennifer Popko, Barbara Ehlting, Katja Behnke, Andrea Polle, Robert Hänsch, Csengele Barta, Behnke, K, Kaiser, A, Zimmer, I, Bruggemann, N, Janz, D, Polle, A, Hampp, R, Hansch, R, Popko, J, Schmitt-Kopplin, P, Ehlting, B, Rennenberg, H, Barta, C, Loreto, F, and Schnitzler, Jp

Subjects
0106 biological sciences, Hot Temperature, Light, Isoprene, H2O2, Metabolite, Environmental stress, Plant Science, 01 natural sciences, chemistry.chemical_compound, Populus x canescens, Populus xcanescens, Phenolic compounds, 0303 health sciences, Phenylpropanoid, food and beverages, General Medicine, Plants, Genetically Modified, Droughts, Populus, Biochemistry, Metabolome, Carbohydrate Metabolism, RNA Interference, Seasons, Down-Regulation, Biology, Genes, Plant, Photosynthesis, Models, Biological, Article, Life Sciences, Plant Pathology, Biochemistry, general, Plant Sciences, 03 medical and health sciences, Hemiterpenes, Metabolomics, Phenols, Stress, Physiological, Pentanes, Butadienes, Genetics, DNA Primers, 030304 developmental biology, Base Sequence, Terpenes, Gene Expression Profiling, fungi, Wild type, Hydrogen Peroxide, Metabolism, chemistry, Agronomy and Crop Science, 010606 plant biology & botany
Abstract

In plants, isoprene plays a dual role: (a) as thermo-protective agent proposed to prevent degradation of enzymes/membrane structures involved in photosynthesis, and (b) as reactive molecule reducing abiotic oxidative stress. The present work addresses the question whether suppression of isoprene emission interferes with genome wide transcription rates and metabolite fluxes in grey poplar (Populusxcanescens) throughout the growing season. Gene expression and metabolite profiles of isoprene emitting wild type plants and RNAi-mediated non-isoprene emitting poplars were compared by using poplar Affymetrix microarrays and non-targeted FT-ICR-MS (Fourier transform ion cyclotron resonance mass spectrometry). We observed a transcriptional down-regulation of genes encoding enzymes of phenylpropanoid regulatory and biosynthetic pathways, as well as distinct metabolic down-regulation of condensed tannins and anthocyanins, in non-isoprene emitting genotypes during July, when high temperature and light intensities possibly caused transient drought stress, as indicated by stomatal closure. Under these conditions leaves of non-isoprene emitting plants accumulated hydrogen peroxide (H2O2), a signaling molecule in stress response and negative regulator of anthocyanin biosynthesis. The absence of isoprene emission under high temperature and light stress resulted transiently in a new chemo(pheno)type with suppressed production of phenolic compounds. This may compromise inducible defenses and may render non-isoprene emitting poplars more susceptible to environmental stress. Electronic supplementary material The online version of this article (doi:10.1007/s11103-010-9654-z) contains supplementary material, which is available to authorized users.

Published
2010
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29. 16p11.2 600 kb Duplications confer risk for typical and atypical Rolandic epilepsy

Author

Eva M. Reinthaler, Dennis Lal, Sebastien Lebon, Michael S. Hildebrand, Hans-Henrik M. Dahl, Brigid M. Regan, Martha Feucht, Hannelore Steinböck, Birgit Neophytou, Gabriel M. Ronen, Laurian Roche, Ursula Gruber-Sedlmayr, Julia Geldner, Edda Haberlandt, Per Hoffmann, Stefan Herms, Christian Gieger, Melanie Waldenberger, Andre Franke, Michael Wittig, Susanne Schoch, Albert J. Becker, Andreas Hahn, Katrin Männik, Mohammad R. Toliat, Georg Winterer, Holger Lerche, Peter Nürnberg, Heather Mefford, Ingrid E. Scheffer, Samuel F. Berkovic, Jacques S. Beckmann, Thomas Sander, Sebastien Jacquemont, Alexandre Reymond, Fritz Zimprich, Bernd A. Neubauer, Bernd Neubauer, Martina Mörzinger, Arvid Suls, Sarah Weckhuysen, Lieve Claes, Liesbet Deprez, Katrien Smets, Tine Van Dyck, Tine Deconinck, Peter De Jonghe, Rikke S Møller, Laura L. Klitten, Helle Hjalgrim, Kiel Campus, Ingo Helbig, Hiltrud Muhle, Philipp Ostertag, Sarah von Spiczak, Ulrich Stephani, Holger Trucks, Christian E. Elger, Ailing A. Kleefuß-Lie, Wolfram S. Kunz, Rainer Surges, Verena Gaus, Dieter Janz, Bettina Schmitz, Felix Rosenow, Karl Martin Klein, Philipp S. Reif, Wolfgang H. Oertel, Hajo M. Hamer, Felicitas Becker, Yvonne Weber, Bobby P.C. Koeleman, Carolien de Kovel, Dick Lindhout, Agnès Ameil, Joris Andrieux, Sonia Bouquillon, Odile Boute, Jeanne de Flandre, Jean Marie Cuisset, Jean-Christophe Cuvellier, Roger Salengro, Albert David, Bert de Vries, Marie-Ange Delrue, Martine Doco-Fenzy, Bridget A. Fernandez, Delphine Heron, Boris Keren, Robert Lebel, Bruno Leheup, Suzanne Lewis, Maria Antonietta Mencarelli, Cyril Mignot, Jean-Claude Minet, Alexandre Moerman, Fanny Morice-Picard, Mafalda Mucciolo, Katrin Ounap, Laurent Pasquier, Florence Petit, Francesca Ragona, Evica Rajcan-Separovic, Alessandra Renieri, Claudine Rieubland, Damien Sanlaville, Elisabeth Sarrazin, Yiping Shen, Mieke van Haelst, Anneke Vulto-van Silfhout, 16p11.2 European Consortium, EPICURE Consortium, EuroEPINOMICS Consortium, Reinthaler, EM., Zimprich, F., Feucht, M., Steinböck, H., Neophytou, B., Geldner, J., Gruber-Sedlmayr, U., Haberlandt, E., Ronen, GM., Roche, L., Lal, D., Nürnberg, P., Sander, T., Lerche, H., Neubauer, B., Mörzinger, M., Suls, A., Weckhuysen, S., Claes, L., Deprez, L., Smets, K., Van Dyck, T., Deconinck, T., De Jonghe, P., Møller, RS., Klitten, LL., Hjalgrim, H., Campus, K., Helbig, I., Muhle, H., Ostertag, P., von Spiczak, S., Stephani, U., Trucks, H., Elger, CE., Kleefuß-Lie, AA., Kunz, WS., Surges, R., Gaus, V., Janz, D., Schmitz, B., Rosenow, F., Klein, KM., Reif, PS., Oertel, WH., Hamer, HM., Becker, F., Weber, Y., Koeleman, BP., de Kovel, C., Lindhout, D., Ameil, A., Andrieux, J., Bouquillon, S., Boute, O., Cordier, MP., Cuisset, JM., Cuvellier, JC., David, A., de Vries, B., Delrue, MA., Doco-Fenzy, M., Fernandez, BA., Heron, D., Keren, B., Lebel, R., Leheup, B., Lewis, S., Mencarelli, MA., Mignot, C., Minet, JC., Moerman, A., Morice-Picard, F., Mucciolo, M., Ounap, K., Pasquier, L., Petit, F., Ragona, F., Rajcan-Separovic, E., Renieri, A., Rieubland, C., Sanlaville, D., Sarrazin, E., Shen, Y., van Haelst, M., Vulto-van Silfhout, A., and Other departments

Subjects
Male, DNA Copy Number Variations, Chromosomes, Human, Pair 22, 610 Medicine & health, Locus (genetics), Biology, Polymorphism, Single Nucleotide, Temporal lobe, Epilepsy, Gene duplication, Chromosome Duplication, Genetics, medicine, Humans, Copy-number variation, Child, Molecular Biology, Genetics (clinical), Chromosomes, Human, Pair 15, Infant, General Medicine, Odds ratio, medicine.disease, Epilepsy, Rolandic, Rolandic epilepsy, Exact test, Chromosomes, Human, Pair 1, Child, Preschool, Female, Chromosomes, Human, Pair 16
Abstract

Rolandic epilepsy (RE) is the most common idiopathic focal childhood epilepsy. Its molecular basis is largely unknown and a complex genetic etiology is assumed in the majority of affected individuals. The present study tested whether six large recurrent copy number variants at 1q21, 15q11.2, 15q13.3, 16p11.2, 16p13.11 and 22q11.2 previously associated with neurodevelopmental disorders also increase risk of RE. Our association analyses revealed a significant excess of the 600 kb genomic duplication at the 16p11.2 locus (chr16: 29.5-30.1 Mb) in 393 unrelated patients with typical (n = 339) and atypical (ARE; n = 54) RE compared with the prevalence in 65,046 European population controls (5/393 cases versus 32/65,046 controls; Fisher's exact test P = 2.83 × 10(-6), odds ratio = 26.2, 95% confidence interval: 7.9-68.2). In contrast, the 16p11.2 duplication was not detected in 1738 European epilepsy patients with either temporal lobe epilepsy (n = 330) and genetic generalized epilepsies (n = 1408), suggesting a selective enrichment of the 16p11.2 duplication in idiopathic focal childhood epilepsies (Fisher's exact test P = 2.1 × 10(-4)). In a subsequent screen among children carrying the 16p11.2 600 kb rearrangement we identified three patients with RE-spectrum epilepsies in 117 duplication carriers (2.6%) but none in 202 carriers of the reciprocal deletion. Our results suggest that the 16p11.2 duplication represents a significant genetic risk factor for typical and atypical RE.

Published
2014
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