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Start Over Author "Delavaran, H" Topic 030217 neurology & neurosurgery
3 results on '"Delavaran, H"'

1. Genetic risk factors for ischaemic stroke and its subtypes (the METASTROKE Collaboration): a meta-analysis of genome-wide association studies

Author

Traylor, M, Farrall, M, Holliday, EG, Sudlow, C, Hopewell, JC, Cheng, YC, Fornage, M, Ikram, MA, Malik, R, Bevan, S, Thorsteinsdottir, U, Nalls, MA, Longstreth, WT, Wiggins, KL, Yadav, S, Parati, EA, DeStefano, AL, Worrall, BB, Kittner, SJ, Khan, MS, Reiner, AP, Helgadottir, A, Achterberg, S, Fernandez-Cadenas, I, Abboud, S, Schmidt, R, Walters, M, Chen, WM, Ringelstein, EB, O'Donnell, M, Ho, WK, Pera, J, Lemmens, R, Norrving, B, Higgins, P, Benn, M, Sale, M, Kuhlenbäumer, G, Doney, ASF, Vicente, AM, Delavaran, H, Algra, A, Davies, G, Oliveira, SA, Palmer, CNA, Deary, I, Schmidt, H, Pandolfo, M, Montaner, J, Carty, C, de Bakker, PIW, Kostulas, K, Ferro, JM, van Zuydam, NR, Valdimarsson, E, Nordestgaard, BG, Lindgren, A, Thijs, V, Slowik, A, Saleheen, D, Paré, G, Berger, K, Thorleifsson, G, Hofman, A, Mosley, TH, Mitchell, BD, Furie, K, Clarke, R, Levi, C, Seshadri, S, Gschwendtner, A, Boncoraglio, GB, Sharma, P, Bis, JC, Gretarsdottir, S, Psaty, BM, Rothwell, PM, Rosand, J, Radiology & Nuclear Medicine, Cardiology, and Epidemiology

Subjects
musculoskeletal diseases, medicine.medical_specialty, Neurology, endocrine system diseases, infarction, Population, Clinical Neurology, MEDLINE, population, Genome-wide association study, Disease, Bioinformatics, Article, diseases, Brain Ischemia, Doenças Cardio e Cérebro-vasculares, 03 medical and health sciences, 0302 clinical medicine, Risk Factors, map, Databases, Genetic, Humans, Medicine, Genetic Predisposition to Disease, education, Stroke, 030304 developmental biology, Genetic association, sequence variants, 0303 health sciences, education.field_of_study, common, business.industry, prkch, nutritional and metabolic diseases, medicine.disease, 3. Good health, Meta-analysis, loci, Neurology (clinical), business, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract

Background: Various genome-wide association studies (GWAS) have been done in ischaemic stroke, identifying a few loci associated with the disease, but sample sizes have been 3500 cases or less. We established the METASTROKE collaboration with the aim of validating associations from previous GWAS and identifying novel genetic associations through meta-analysis of GWAS datasets for ischaemic stroke and its subtypes. Methods: We meta-analysed data from 15 ischaemic stroke cohorts with a total of 12 389 individuals with ischaemic stroke and 62 004 controls, all of European ancestry. For the associations reaching genome-wide significance in METASTROKE, we did a further analysis, conditioning on the lead single nucleotide polymorphism in every associated region. Replication of novel suggestive signals was done in 13 347 cases and 29 083 controls. Findings: We verified previous associations for cardioembolic stroke near PITX2 (p=2·8×10-16) and ZFHX3 (p=2·28×10-8), and for large-vessel stroke at a 9p21 locus (p=3·32×10-5) and HDAC9 (p=2·03×10-12). Additionally, we verified that all associations were subtype specific. Conditional analysis in the three regions for which the associations reached genome-wide significance (PITX2, ZFHX3, and HDAC9) indicated that all the signal in each region could be attributed to one risk haplotype. We also identified 12 potentially novel loci at p

Published
2012

2. Genome-wide association study identifies a variant in HDAC9 associated with large vessel ischemic stroke

Author

Bellenguez, C, Bevan, S, Gschwendtner, A, Spencer, CCA, Burgess, AI, Pirinen, M, Jackson, CA, Traylor, M, Strange, A, Su, Z, Band, G, Syme, PD, Malik, R, Pera, J, Bo, N, Lemmens, R, Freeman, C, Schanz, R, James, T, Poole, D, Murphy, L, Segal, H, Cortellini, L, Cheng, YC, Woo, D, Nalls, MA, Müller-Myhsok, B, Meisinger, C, Seedorf, U, Ross-Adams, H, Boonen, S, Wloch-Kopec, D, Valant, V, Slark, J, Furie, K, Delavaran, H, Langford, C, Deloukas, P, Edkins, S, Hunt, S, Gray, E, Dronov, S, Peltonen, L, Gretarsdottir, S, Thorleifsson, G, Thorsteinsdottir, U, Stefansson, K, Boncoraglio, GB, Parati, EA, Attia, J, Holliday, E, Levi, C, Franzosi, MG, Goel, A, Helgadottir, A, Blackwell, JM, Bramon, E, Brown, MA, Casas, JP, Corvin, A, Duncanson, A, Jankowski, J, Mathew, CG, Palmer, CNA, Plomin, R, Rautanen, A, Sawcer, SJ, Trembath, RC, Viswanathan, AC, Wood, NW, Worrall, BB, Kittner, SJ, Mitchell, BD, Kissela, B, Meschia, JF, Thijs, V, Lindgren, A, MacLeod, MJ, Slowik, A, and Walters, M

Subjects
medicine.medical_specialty, Neurology, Genotype, Locus (genetics), Genome-wide association study, Disease, Biology, Bioinformatics, Polymorphism, Single Nucleotide, Histone Deacetylases, White People, Article, 03 medical and health sciences, 0302 clinical medicine, Odds Ratio, medicine, Genetics, Humans, Genetic Predisposition to Disease, 030304 developmental biology, 0303 health sciences, Atrial fibrillation, Odds ratio, medicine.disease, Confidence interval, 3. Good health, Repressor Proteins, Stroke, Chromosomes, Human, Pair 7, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract

Genetic factors have been implicated in stroke risk, but few replicated associations have been reported. We conducted a genome-wide association study (GWAS) for ischemic stroke and its subtypes in 3,548 affected individuals and 5,972 controls, all of European ancestry. Replication of potential signals was performed in 5,859 affected individuals and 6,281 controls. We replicated previous associations for cardioembolic stroke near PITX2 and ZFHX3 and for large vessel stroke at a 9p21 locus. We identified a new association for large vessel stroke within HDAC9 (encoding histone deacetylase 9) on chromosome 7p21.1 (including further replication in an additional 735 affected individuals and 28,583 controls) (rs11984041; combined P = 1.87 × 10 -11; odds ratio (OR) = 1.42, 95% confidence interval (CI) = 1.28-1.57). All four loci exhibited evidence for heterogeneity of effect across the stroke subtypes, with some and possibly all affecting risk for only one subtype. This suggests distinct genetic architectures for different stroke subtypes. © 2012 Nature America, Inc. All rights reserved.

Published
2012

3. Serum magnesium and calcium levels in relation to ischemic stroke Mendelian randomization study

Author

Susanna C. Larsson, Matthew Traylor, Stephen Burgess, Giorgio B. Boncoraglio, Christina Jern, Karl Michaëlsson, Hugh S. Markus, Rainer Malik, Ganesh Chauhan, Muralidharan Sargurupremraj, Yukinori Okada, Aniket Mishra, Loes Rutten-Jacobs, Anne-Katrin Giese, Sander W van der Laan, Solveig Gretarsdottir, Christopher D Anderson, Michael Chong, Hieab HH Adams, Tetsuro Ago, Peter Almgren, Philippe Amouyel, Hakan Ay, raci M Bartz, Oscar R Benavente, Steve Bevan, Giorgio B Boncoraglio, Robert D Brown, Adam S Butterworth, Caty Carrera, Cara L Carty, Daniel I Chasman, Wei-Min Chen, John W Cole, Adolfo Correa, Ioana Cotlarciuc, Carlos Cruchaga, John Danesh, Paul IW de Bakker, Anita L DeStefano, Marcel den Hoed, Qing Duan, Stefan T Engelter, Guido J Falcone, Rebecca F Gottesman, Raji P Grewal, Vilmundur Gudnason, Stefan Gustafsson, Jeffrey Haessler, Tamara B Harris, Ahamad Hassan, Aki S Havulinna, Susan R Heckbert, Elizabeth G Holliday, George Howard, Fang-Chi Hsu, Hyacinth I Hyacinth, M Arfan Ikram, Erik Ingelsson, Marguerite R Irvin, Xueqiu Jian, Jordi Jiménez-Conde, Julie A Johnson, J Wouter Jukema, Masahiro Kanai, Keith L Keene, Brett M Kissela, Dawn O Kleindorfer, Charles Kooperberg, Michiaki Kubo, Leslie A Lange, Carl D Langefeld, Claudia Langenberg, Lenore J Launer, Jin-Moo Lee, Robin Lemmens, Didier Leys, Cathryn M Lewis, Wei-Yu Lin, Arne G Lindgren, Erik Lorentzen, Patrik K Magnusson, Jane Maguire, Ani Manichaikul, Patrick F McArdle, James F Meschia, Braxton D Mitchell, Thomas H Mosley, Michael A Nalls, Toshiharu Ninomiya, Martin J O'Donnell, Bruce M Psaty, Sara L Pulit, Kristiina Rannikmäe, Alexander P Reiner, Kathryn M Rexrode, Kenneth Rice, Stephen S Rich, Paul M Ridker, Natalia S Rost, Peter M Rothwell, Jerome I Rotter, Tatjana Rundek, Ralph L Sacco, Saori Sakaue, Michele M Sale, Veikko Salomaa, Bishwa R Sapkota, Reinhold Schmidt, Carsten O Schmidt, Ulf Schminke, Pankaj Sharma, Agnieszka Slowik, Cathie LM Sudlow, Christian Tanislav, Turgut Tatlisumak, Kent D Taylor, Vincent NS Thijs, Gudmar Thorleifsson, Unnur Thorsteinsdottir, Steffen Tiedt, Stella Trompet, Christophe Tzourio, Cornelia M van Duijn, Matthew Walters, Nicholas J Wareham, Sylvia Wassertheil-Smoller, James G Wilson, Kerri L Wiggins, Qiong Yang, Salim Yusuf, Najaf Amin, Hugo S Aparicio, Donna K Arnett, John Attia, Alexa S Beiser, Claudine Berr, Julie E Buring, Mariana Bustamante, Valeria Caso, Yu-Ching Cheng, Seung Hoan Choi, Ayesha Chowhan, Natalia Cullell, Jean-François Dartigues, Hossein Delavaran, Pilar Delgado, Marcus Dörr, Gunnar Engström, Ian Ford, Wander S Gurpreet, Anders Hamsten, Laura Heitsch, Atsushi Hozawa, Laura Ibanez, Andreea Ilinca, Martin Ingelsson, Motoki Iwasaki, Rebecca D Jackson, Katarina Jood, Pekka Jousilahti, Sara Kaffashian, Lalit Kalra, Masahiro Kamouchi, Takanari Kitazono, Olafur Kjartansson, Manja Kloss, Peter J Koudstaal, Jerzy Krupinski, Daniel L Labovitz, Cathy C Laurie, Christopher R Levi, Linxin Li, Lars Lind, Cecilia M Lindgren, Vasileios Lioutas, Yong Mei Liu, Oscar L Lopez, Hirata Makoto, Nicolas Martinez-Majander, Koichi Matsuda, Naoko Minegishi, Joan Montaner, Andrew P Morris, Elena Muiño, Martina Müller-Nurasyid, Bo Norrving, Soichi Ogishima, Eugenio A Parati, Leema Reddy Peddareddygari, Nancy L Pedersen, Joanna Pera, Markus Perola, Alessandro Pezzini, Silvana Pileggi, Raquel Rabionet, Iolanda Riba-Llena, Marta Ribasés, Jose R Romero, Jaume Roquer, Anthony G Rudd, Antti-Pekka Sarin, Ralhan Sarju, Chloe Sarnowski, Makoto Sasaki, Claudia L Satizabal, Mamoru Satoh, Naveed Sattar, Norie Sawada, Gerli Sibolt, Ásgeir Sigurdsson, Albert Smith, Kenji Sobue, Carolina Soriano-Tárraga, Tara Stanne, O Colin Stine, David J Stott, Konstantin Strauch, Takako Takai, Hideo Tanaka, Kozo Tanno, Alexander Teumer, Liisa Tomppo, Nuria P Torres-Aguila, Emmanuel Touze, Shoichiro Tsugane, Andre G Uitterlinden, Einar M Valdimarsson, Sven J van der Lee, Henry Völzke, Kenji Wakai, David Weir, Stephen R Williams, Charles DA Wolfe, Quenna Wong, Huichun Xu, Taiki Yamaji, Dharambir K Sanghera, Olle Melander, Daniel Strbian, Israel Fernandez-Cadenas, W T Longstreth, Arndt Rolfs, Jun Hata, Daniel Woo, Jonathan Rosand, Guillaume Pare, Jemma C Hopewell, Danish Saleheen, Kari Stefansson, Bradford B Worrall, Steven J Kittner, Sudha Seshadri, Myriam Fornage, Hugh S Markus, Joanna MM Howson, Yoichiro Kamatani, Stephanie Debette, Martin Dichgans, Berr, Claudine, Unit of Cardiovascular and Nutritional Epidemiology [Stockholm, Sweden], Karolinska Institutet [Stockholm]-Institute of Environmental Medicine [Stockholm, Sweden], Stroke Research Group [London, UK] (Department of Brain Repair and Rehabilitation), University of London - UCL [London, UK], MRC Biostatistics Unit [Cambridge, UK], University of Cambridge [UK] (CAM), Department of Public Health and Primary Care [Cambridge, UK] (Institute of Public Health), Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Section of Clinical Immunology [Uppsala, Sweden] (Department of Immunology, Genetics and Pathology), Uppsala University, Department of Surgical Sciences [Uppsala, Sweden], This work was supported by the Swedish Research Council for Health, Working Life and Welfare (Forte) and the Swedish Research Council. Hugh Markus is supported by an NIHR Senior Investigator award. His and Matthew Traylor’s work is supported by infrastructural support from the Cambridge University Hospitals Trust NIHR Biomedical Research Centre., MEGASTROKE project of the International Stroke Genetics Consortium : Malik R, Chauhan G, Traylor M, Sargurupremraj M, Okada Y, Mishra A, Rutten-Jacobs L, Giese AK, van der Laan SW, Gretarsdottir S, Anderson CD, Chong M, Adams HH, Ago T, Almgren P, Amouyel P, Ay H, Bartz RM, Benavente OR, Bevan S, Boncoraglio GB, Brown RD Jr, Butterworth AS, Carrera C, Carty CL, Chasman DI, Chen WM, Cole JW, Correa A, Cotlarciuc I, Cruchaga C, Danesh J, de Bakker PI, DeStefano AL, Hoed MD, Duan Q, Engelter ST, Falcone GJ, Gottesman RF, Grewal RP, Gudnason V, Gustafsson S, Haessler J, Harris TB, Hassan A, Havulinna AS, Heckbert SR, Holliday EG, Howard G, Hsu FC, Hyacinth HI, Ikram MA, Ingelsson E, Irvin MR, Jian X, Jiménez-Conde J, Johnson JA, Jukema JW, Kanai M, Keene KL, Kissela BM, Kleindorfer DO, Kooperberg C, Kubo M, Lange LA, Langefeld CD, Langenberg C, Launer LJ, Lee JM, Lemmens R, Leys D, Lewis CM, Lin WY, Lindgren AG, Lorentzen E, Magnusson PK, Maguire J, Manichaikul A, McArdle PF, Meschia JF, Mitchell BD, Mosley TH, Nalls MA, Ninomiya T, O'Donnell MJ, Psaty BM, Pulit SL, Rannikmäe K, Reiner AP, Rexrode KM, Rice K, Rich SS, Ridker PM, Rost NS, Rothwell PM, Rotter JI, Rundek T, Sacco RL, Sakaue S, Sale MM, Salomaa V, Sapkota BR, Schmidt R, Schmidt CO, Schminke U, Sharma P, Slowik A, Sudlow CL, Tanislav C, Tatlisumak T, Taylor KD, Thijs VN, Thorleifsson G, Thorsteinsdottir U, Tiedt S, Trompet S, Tzourio C, van Duijn CM, Walters M, Wareham NJ, Wassertheil-Smoller S, Wilson JG, Wiggins KL, Yang Q, Yusuf S, Amin N, Aparicio HS, Arnett DK, Attia J, Beiser AS, Berr C, Buring JE, Bustamante M, Caso V, Cheng YC, Choi SH, Chowhan A, Cullell N, Dartigues JF, Delavaran H, Delgado P, Dörr M, Engström G, Ford I, Gurpreet WS, Hamsten A, Heitsch L, Hozawa A, Ibanez L, Ilinca A, Ingelsson M, Iwasaki M, Jackson RD, Jood K, Jousilahti P, Kaffashian S, Kalra L, Kamouchi M, Kitazono T, Kjartansson O, Kloss M, Koudstaal PJ, Krupinski J, Labovitz DL, Laurie CC, Levi CR, Li L, Lind L, Lindgren CM, Lioutas V, Liu YM, Lopez OL, Makoto H, Martinez-Majander N, Matsuda K, Minegishi N, Montaner J, Morris AP, Muiño E, Müller-Nurasyid M, Norrving B, Ogishima S, Parati EA, Peddareddygari LR, Pedersen NL, Pera J, Perola M, Pezzini A, Pileggi S, Rabionet R, Riba-Llena I, Ribasés M, Romero JR, Roquer J, Rudd AG, Sarin AP, Sarju R, Sarnowski C, Sasaki M, Satizabal CL, Satoh M, Sattar N, Sawada N, Sibolt G, Sigurdsson Á, Smith A, Sobue K, Soriano-Tárraga C, Stanne T, Stine OC, Stott DJ, Strauch K, Takai T, Tanaka H, Tanno K, Teumer A, Tomppo L, Torres-Aguila NP, Touze E, Tsugane S, Uitterlinden AG, Valdimarsson EM, van der Lee SJ, Völzke H, Wakai K, Weir D, Williams SR, Wolfe CD, Wong Q, Xu H, Yamaji T, Sanghera DK, Melander O, Jern C, Strbian D, Fernandez-Cadenas I, Longstreth WT Jr, Rolfs A, Hata J, Woo D, Rosand J, Pare G, Hopewell JC, Saleheen D, Stefansson K, Worrall BB, Kittner SJ, Seshadri S, Fornage M, Markus HS, Howson JM, Kamatani Y, Debette S, Dichgans M., Larsson, Susanna C [0000-0003-0118-0341], Apollo - University of Cambridge Repository, and Neurology

Subjects
medicine.medical_specialty, Neurology, Heredity, Neurologi, [SDV]Life Sciences [q-bio], chemistry.chemical_element, Calcium, Polymorphism, Single Nucleotide, Gastroenterology, Article, Brain Ischemia, Brain ischemia, 03 medical and health sciences, 0302 clinical medicine, Human genetics, Internal medicine, Mendelian randomization, Medicine, Humans, Magnesium, 030212 general & internal medicine, Stroke, Herència (Biologia), Genètica humana, business.industry, Neurosciences, Mendelian Randomization Analysis, Odds ratio, medicine.disease, Confidence interval, 3. Good health, [SDV] Life Sciences [q-bio], Intracranial Embolism, chemistry, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Neurology (clinical), business, 030217 neurology & neurosurgery, Neurovetenskaper
Abstract

Comment inThe yin and yang of magnesium and calcium: New genetic insights for stroke? [Neurology. 2019]; International audience; Objective To determine whether serum magnesium and calcium concentrations are causally associated with ischemic stroke or any of its subtypes using the mendelian randomization approach. Methods Analyses were conducted using summary statistics data for 13 single-nucleotide polymorphisms robustly associated with serum magnesium (n = 6) or serum calcium (n = 7) concentrations. The corresponding data for ischemic stroke were obtained from the MEGASTROKE consortium (34,217 cases and 404,630 noncases). Results In standard mendelian randomization analysis, the odds ratios for each 0.1 mmol/L (about 1 SD) increase in genetically predicted serum magnesium concentrations were 0.78 (95% confidence interval [CI] 0.69-0.89; p = 1.3 × 10 −4) for all ischemic stroke, 0.63 (95% CI 0.50-0.80; p = 1.6 × 10 −4) for cardioembolic stroke, and 0.60 (95% CI 0.44-0.82; p = 0.001) for large artery stroke; there was no association with small vessel stroke (odds ratio 0.90, 95% CI 0.67-1.20; p = 0.46). Only the association with cardioembolic stroke was robust in sensitivity analyses. There was no association of genetically predicted serum calcium concentrations with all ischemic stroke (per 0.5 mg/dL [about 1 SD] increase in serum calcium: odds ratio 1.03, 95% CI 0.88-1.21) or with any subtype. Conclusions This study found that genetically higher serum magnesium concentrations are associated with a reduced risk of cardioembolic stroke but found no significant association of genetically higher serum calcium concentrations with any ischemic stroke subtype.

Published
2019

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