Search

Your search keyword '"Hammarsjö, Anna"' showing total 4 results
Start Over Author "Hammarsjö, Anna" Language undetermined
4 results on '"Hammarsjö, Anna"'

1. Genome sequencing with comprehensive variant calling identifies structural variants and repeat expansions in a large fraction of individuals with ataxia and/or neuromuscular disorders

Author

Ek, Marlene, Nilsson, Daniel, Engvall, Martin, Malmgren, Helena, Thonberg, Håkan, Pettersson, Maria, Anderlid, Britt-Marie, Hammarsjö, Anna, Helgadottir, Hafdis T., Arnardottir, Snjolaug, Naess, Karin, Nennesmo, Inger, Paucar, Martin, Hjartarson, Helgi Thor, Press, Rayomand, Solders, Göran, Sejersen, Thomas, Lindstrand, Anna, and Kvarnung, Malin

Subjects
Neurology, Neurology (clinical)
Abstract

IntroductionNeuromuscular disorders (NMDs) have a heterogeneous etiology. A genetic diagnosis is key to personalized healthcare and access to targeted treatment for the affected individuals.MethodsIn this study, 861 patients with NMDs were analyzed with genome sequencing and comprehensive variant calling including single nucleotide variants, small insertions/deletions (SNVs/INDELs), and structural variants (SVs) in a panel of 895 NMD genes, as well as short tandem repeat expansions (STRs) at 28 loci. In addition, for unsolved cases with an unspecific clinical presentation, the analysis of a panel with OMIM disease genes was added.ResultsIn the cohort, 27% (232/861) of the patients harbored pathogenic variants, of which STRs and SVs accounted for one-third of the patients (71/232). The variants were found in 107 different NMD genes. Furthermore, 18 pediatric patients harbored pathogenic variants in non-NMD genes.DiscussionOur results highlight that for children with unspecific hypotonia, a genome-wide analysis rather than a disease-based gene panel should be considered as a diagnostic approach. More importantly, our results clearly show that it is crucial to include STR- and SV-analyses in the diagnostics of patients with neuromuscular disorders.

Published
2023

2. A MT-TL1 variant identified by whole exome sequencing in an individual with intellectual disability, epilepsy, and spastic tetraparesis

Author

de Boer, Elke, Ockeloen, Charlotte W., Matalonga, Leslie, Horvath, Rita, Cohen, Enzo, Cuesta, Isabel, Danis, Daniel, Denommé-Pichon, Anne-Sophie, Duffourd, Yannis, Gilissen, Christian, Johari, Mridul, Laurie, Steven, Li, Shuang, Nelson, Isabelle, Peters, Sophia, Paramonov, Ida, Prasanth, Sivakumar, Robinson, Peter, Sablauskas, Karolis, Savarese, Marco, Steyaert, Wouter, Töpf, Ana, van der Velde, Joeri K., Vitobello, Antonio, Rodenburg, Richard J., Coenen, Marieke J. H., Janssen, Mirian, Henssen, Dylan, Banka, Siddharth, Benetti, Elisa, Casari, Giorgio, Ciolfi, Andrea, Clayton-Smith, Jill, Dallapiccola, Bruno, Ellwanger, Kornelia, Faivre, Laurence, Graessner, Holm, Haack, Tobias B., Hammarsjö, Anna, Havlovicova, Marketa, Hoischen, Alexander, Hugon, Anne, Jackson, Adam, Kleefstra, Tjitske, Lindstrand, Anna, López-Martín, Estrella, Macek, Milan, Morleo, Manuela, Nigro, Vicenzo, Nordgren, Ann, Pettersson, Maria, Pinelli, Michele, Pizzi, Simone, Posada, Manuel, Radio, Francesca Clementina, Renieri, Alessandra, Rooryck, Caroline, Ryba, Lukas, Schwarz, Martin, Tartaglia, Marco, Thauvin, Christel, Torella, Annalaura, Verloes, Alain, Vissers, Lisenka, Votypka, Pavel, Vyshka, Klea, Zurek, Birte, Trimouille, Aurélien, Vissers, Lisenka E. L. M., Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) (U1211 INSERM/MRGM), Université de Bordeaux (UB)-Groupe hospitalier Pellegrin-Institut National de la Santé et de la Recherche Médicale (INSERM), Département de génétique [Robert Debré], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-AP-HP Hôpital universitaire Robert-Debré [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), European Research Council, Evelyn Trust, Newton Fund, European Project: 825619,AI4EU, Dutch Research Council (Holanda), Medical Research Council (Reino Unido), Lily Foundation, Unión Europea. Comisión Europea. H2020, Ockeloen, Charlotte W [0000-0003-0329-1520], Horvath, Rita [0000-0002-9841-170X], Rodenburg, Richard J [0000-0001-5227-3527], Gilissen, Christian [0000-0003-1693-9699], Steyaert, Wouter [0000-0001-8393-0788], Trimouille, Aurélien [0000-0002-3457-5684], Verloes, Alain [0000-0003-4819-0264], Vissers, Lisenka ELM [0000-0001-6470-5497], Apollo - University of Cambridge Repository, de Boer, E., Ockeloen, C. W., Matalonga, L., Horvath, R., Rodenburg, R. J., Coenen, M. J. H., Janssen, M., Henssen, D., Gilissen, C., Steyaert, W., Paramonov, I., Trimouille, A., Kleefstra, T., Verloes, A., Vissers, L. E. L. M., Nigro, V., Torella, A., and Banfi, S.

Subjects
Male, Proband, Mitochondrial DNA, RNA, Transfer, Leu, Brief Communication, Quadriplegia, Whole Exome Sequencing, Healthcare improvement science Radboud Institute for Health Sciences [Radboudumc 18], Young Adult, 03 medical and health sciences, Epilepsy, 0302 clinical medicine, Intellectual Disability, Exome Sequencing, Genetics research, Intellectual disability, Genetics, medicine, Humans, Genetics (clinical), Exome sequencing, 0303 health sciences, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], business.industry, Neurodevelopmental disorders, 030305 genetics & heredity, Correction, Metabolic Disorders Radboud Institute for Molecular Life Sciences [Radboudumc 6], Translational research, medicine.disease, Heteroplasmy, 3. Good health, MT-TL1, Mutation, Inflammatory diseases Radboud Institute for Health Sciences [Radboudumc 5], Spastic tetraparesis, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Neurological disorders, 030217 neurology & neurosurgery
Abstract

Correction: A MT-TL1 variant identified by whole exome sequencing in an individual with intellectual disability, epilepsy, and spastic tetraparesis. Eur J Hum Genet. 2021 Sep;29(9):1470-1471. doi: 10.1038/s41431-021-00937-3. The genetic etiology of intellectual disability remains elusive in almost half of all affected individuals. Within the Solve-RD consortium, systematic re-analysis of whole exome sequencing (WES) data from unresolved cases with (syndromic) intellectual disability (n = 1,472 probands) was performed. This re-analysis included variant calling of mitochondrial DNA (mtDNA) variants, although mtDNA is not specifically targeted in WES. We identified a functionally relevant mtDNA variant in MT-TL1 (NC_012920.1:m.3291T > C; NC_012920.1:n.62T > C), at a heteroplasmy level of 22% in whole blood, in a 23-year-old male with severe intellectual disability, epilepsy, episodic headaches with emesis, spastic tetraparesis, brain abnormalities, and feeding difficulties. Targeted validation in blood and urine supported pathogenicity, with heteroplasmy levels of 23% and 58% in index, and 4% and 17% in mother, respectively. Interestingly, not all phenotypic features observed in the index have been previously linked to this MT-TL1 variant, suggesting either broadening of the m.3291T > C-associated phenotype, or presence of a co-occurring disorder. Hence, our case highlights the importance of underappreciated mtDNA variants identifiable from WES data, especially for cases with atypical mitochondrial phenotypes and their relatives in the maternal line. This work was financially supported by Aspasia grants of the Dutch Research Council (015.014.036 to TK and 015.014.066 to LELMV), the European Research Council (ERC to RH), the Well come Investigator Award (109915/Z/15/Z to RH), the Medical Research Council UK (MR/N025431/1 to RH), the Newton Fund (MR/N027302/1 to RH), the Lily Foundation (RH), and the Evelyn Trust (RH). The Solve-RD project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 779257. Sí

Published
2021

3. A MT-TL1 variant identified by whole exome sequencing in an individual with intellectual disability, epilepsy, and spastic tetraparesis

Author

De Boer, Elke, Ockeloen, Charlotte W., Matalonga, Leslie, Horvath, Rita, Rodenburg, Richard J., Coenen, Marieke J. H., Janssen, Mirian, Henssen, Dylan, Paramonov, Ida, Trimouille, Aurélien, Kleefstra, Tjitske, Vissers, Lisenka E. L. M., Cohen, Enzo, Cuesta, Isabel, Danis, Daniel, Denommé-Pichon, Anne-Sophie, Duffourd, Yannis, Gilissen, Christian, Johari, Mridul, Laurie, Steven, Li, Shuang, Nelson, Isabelle, Peters, Sophia, Prasanth, Sivakumar, Robinson, Peter, Sablauskas, Karolis, Savarese, Marco, Steyaert, Wouter, Töpf, Ana, Van Der Velde, Joeri K., Vitobello, Antonio, Banka, Siddharth, Benetti, Elisa, Casari, Giorgio, Ciolfi, Andrea, Clayton-Smith, Jill, Dallapiccola, Bruno, Faivre, Laurence, Haack, Tobias B., Hammarsjö, Anna, Havlovicova, Marketa, Hoischen, Alexander, Hugon, Anne, Jackson, Adam, Lindstrand, Anna, López-Martín, Estrella, Macek, Milan, Nigro, Vicenzo, Nordgren, Ann, Pettersson, Maria, Pinelli, Michele, Pizzi, Simone, Posada, Manuel, Radio, Francesca Clementina, Renieri, Alessandra, Rooryck, Caroline, Ryba, Lukas, Schwarz, Martin, Tartaglia, Marco, Thauvin, Christel, Torella, Annalaura, Verloes, Alain, Vissers, Lisenka, Vyshka, Klea, Zurek, Birte, Ockeloen, Charlotte W. [0000-0003-0329-1520], Horvath, Rita [0000-0002-9841-170X], Rodenburg, Richard J. [0000-0001-5227-3527], Gilissen, Christian [0000-0003-1693-9699], Steyaert, Wouter [0000-0001-8393-0788], Trimouille, Aurélien [0000-0002-3457-5684], Verloes, Alain [0000-0003-4819-0264], Vissers, Lisenka E. L. M. [0000-0001-6470-5497], and Apollo - University of Cambridge Repository

Subjects
692/699/375/366, brief-communication, 692/308/2056, 692/308/575, 692/699/375, 45/23, Brief Communication
Abstract

Funder: The Solve-RD project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 779257, The genetic etiology of intellectual disability remains elusive in almost half of all affected individuals. Within the Solve-RD consortium, systematic re-analysis of whole exome sequencing (WES) data from unresolved cases with (syndromic) intellectual disability (n = 1,472 probands) was performed. This re-analysis included variant calling of mitochondrial DNA (mtDNA) variants, although mtDNA is not specifically targeted in WES. We identified a functionally relevant mtDNA variant in MT-TL1 (NC_012920.1:m.3291T > C; NC_012920.1:n.62T > C), at a heteroplasmy level of 22% in whole blood, in a 23-year-old male with severe intellectual disability, epilepsy, episodic headaches with emesis, spastic tetraparesis, brain abnormalities, and feeding difficulties. Targeted validation in blood and urine supported pathogenicity, with heteroplasmy levels of 23% and 58% in index, and 4% and 17% in mother, respectively. Interestingly, not all phenotypic features observed in the index have been previously linked to this MT-TL1 variant, suggesting either broadening of the m.3291T > C-associated phenotype, or presence of a co-occurring disorder. Hence, our case highlights the importance of underappreciated mtDNA variants identifiable from WES data, especially for cases with atypical mitochondrial phenotypes and their relatives in the maternal line.

Published
2021
Full Text
View/download PDF

4. Additional file 1 of Integration of whole genome sequencing into a healthcare setting: high diagnostic rates across multiple clinical entities in 3219 rare disease patients

Author

Stranneheim, Henrik, Lagerstedt-Robinson, Kristina, Magnusson, Måns, Kvarnung, Malin, Nilsson, Daniel, Lesko, Nicole, Engvall, Martin, Britt-Marie Anderlid, Arnell, Henrik, Johansson, Carolina Backman, Barbaro, Michela, Björck, Erik, Bruhn, Helene, Eisfeldt, Jesper, Freyer, Christoph, Giedre Grigelioniene, Gustavsson, Peter, Hammarsjö, Anna, Hellström-Pigg, Maritta, Iwarsson, Erik, Jemt, Anders, Laaksonen, Mikael, Enoksson, Sara Lind, Malmgren, Helena, Naess, Karin, Nordenskjöld, Magnus, Oscarson, Mikael, Pettersson, Maria, Rasi, Chiara, Rosenbaum, Adam, Ellika Sahlin, Sardh, Eliane, Stödberg, Tommy, Tesi, Bianca, Tham, Emma, Thonberg, Håkan, Töhönen, Virpi, Döbeln, Ulrika Von, Vassiliou, Daphne, Vonlanthen, Sofie, Ann-Charlotte Wikström, Wincent, Josephine, Winqvist, Ola, Wredenberg, Anna, Ygberg, Sofia, Zetterström, Rolf H., Marits, Per, Soller, Maria Johansson, Nordgren, Ann, Wirta, Valtteri, Lindstrand, Anna, and Wedell, Anna

Abstract

Additional file 1: Supplementary methods, Table S1. List of SNPs used for genotyping, Table S2. In house developed open source software used, Table S3. Publicly available open source software used, Table S4. Publicly available databases used, Table S5. Cases with a dual diagnosis. Figure S1. Steps performed in the MIP rare disease pipeline, Figure S2. Turnaround time per quarter, Figure S3. Statistics regarding number genes and patients.

Published
2021
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results