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1. Polygenic risk score: use in migraine research

Author

Mona Ameri Chalmer, Ann-Louise Esserlind, Jes Olesen, and Thomas Folkmann Hansen

Subjects
Medicine
Abstract

Abstract Background The latest Genome-Wide Association Study identified 38 genetic variants associated with migraine. In this type of studies the significance level is very difficult to achieve (5 × 10− 8) due to multiple testing. Thus, the identified variants only explain a small fraction of the genetic risk. It is expected that hundreds of thousands of variants also confer an increased risk but do not reach significance levels. One way to capture this information is by constructing a Polygenic Risk Score. Polygenic Risk Score has been widely used with success in genetics studies within neuropsychiatric disorders. The use of polygenic scores is highly relevant as data from a large migraine Genome-Wide Association Study are now available, which will form an excellent basis for Polygenic Risk Score in migraine studies. Results Polygenic Risk Score has been used in studies of neuropsychiatric disorders to assess prediction of disease status in case-control studies, shared genetic correlation between co-morbid diseases, and shared genetic correlation between a disease and specific endophenotypes. Conclusion Polygenic Risk Score provides an opportunity to investigate the shared genetic risk between known and previously unestablished co-morbidities in migraine research, and may lead to better and personalized treatment of migraine if used as a clinical assistant when identifying responders to specific drugs. Polygenic Risk Score can be used to analyze the genetic relationship between different headache types and migraine endophenotypes. Finally, Polygenic Risk Score can be used to assess pharmacogenetic effects, and perhaps help to predict efficacy of the Calcitonin Gene-Related Peptide monoclonal antibodies that soon become available as migraine treatment. Keywords Migraine genetics; Genome-Wide Association Studies; Polygenic Risk Score; pleiotropy; endophenotype.

Published
2018
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2. Investigation of SNP rs2060546 immediately upstream to NTN4 in a Danish Gilles de la Tourette syndrome cohort

Author

Shanmukha Sampath Padmanabhuni, Rayan Houssari, Ann-Louise Esserlind, Jes Olesen, Thomas Werge, Thomas Folkmann Hansen, Birgitte Berterlsen, Fotis Tsetsos, Peristera Paschou, and Zeynep Tumer

Subjects
Gilles de la Tourette syndrome, SNP, axon guidance, Single nucleotide polymorphism, GTS, Netrin-4, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract

Gilles de la Tourette syndrome (GTS) is a neuropsychiatric disorder characterized by multiple motor and vocal tics. GTS is a complex disorder, with environmental factors and several genes involved. Although variations within a few genes such as AADAC, NRXN1, SLITRK1, HDC, and IMMP2L have been tentatively associated with GTS (in a small number of patients), the causative genes underlying GTS pathophysiology remain unknown. In a previous genome-wide association study (GWAS) a single nucleotide polymorphism (SNP, rs2060546) near the Netrin-4 (NTN4 - MIM 610401) gene was shown to be associated with GTS [odds ratio (OR) = 1.7; p-value = 5.8x10-7] thus warranting further investigations. As NTN4 is one of the axon guidance molecules expressed in the central nervous system and it interacts with encoded protein of SLIT and WNT genes guiding the growth cone towards its target, it is an attractive candidate susceptibility gene for GTS. In this study we attempted to replicate the association of rs2060546 with GTS by genotyping a cohort of 240 Danish GTS patients and 1007 healthy controls. Our results did not reveal an association (OR= 1.363; p-value = 0.3329) in the Danish cohort alone, which may be due to the small sample size. However, a meta-analysis including the present cohort and a total of 1316 GTS patients and 5023 controls from GTS GWAS Replication Initiative (GGRI) and the first GTS-GWAS yielded a significant signal (OR = 3.74; p-value = 0.00018) and same direction of effect in the three cohorts. Thus, our study strengthens the evidence of the possible involvement of NTN4 in GTS etiology, suggesting that further studies in even larger samples and functional studies are warranted to investigate the role of this region in GTS pathogenesis.

Published
2016
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3. Genome-wide association study identifies four loci associated with eruption of permanent teeth.

Author

Frank Geller, Bjarke Feenstra, Hao Zhang, John R Shaffer, Thomas Hansen, Ann-Louise Esserlind, Heather A Boyd, Ellen A Nohr, Nicholas J Timpson, Ghazaleh Fatemifar, Lavinia Paternoster, David M Evans, Robert J Weyant, Steven M Levy, Mark Lathrop, George Davey Smith, Jeffrey C Murray, Jes Olesen, Thomas Werge, Mary L Marazita, Thorkild I A Sørensen, and Mads Melbye

Subjects
Genetics, QH426-470
Abstract

The sequence and timing of permanent tooth eruption is thought to be highly heritable and can have important implications for the risk of malocclusion, crowding, and periodontal disease. We conducted a genome-wide association study of number of permanent teeth erupted between age 6 and 14 years, analyzed as age-adjusted standard deviation score averaged over multiple time points, based on childhood records for 5,104 women from the Danish National Birth Cohort. Four loci showed association at P

Published
2011
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4. Genetic Risk Score for Intracranial Aneurysms: Prediction of Subarachnoid Hemorrhage and Role in Clinical Heterogeneity

Author

Mark K. Bakker, Jos P. Kanning, Gad Abraham, Amy E. Martinsen, Bendik S. Winsvold, John-Anker Zwart, Romain Bourcier, Tomonobu Sawada, Masaru Koido, Yoichiro Kamatani, Sandrine Morel, Philippe Amouyel, Stéphanie Debette, Philippe Bijlenga, Takiy Berrandou, Santhi K. Ganesh, Nabila Bouatia-Naji, Gregory Jones, Matthew Bown, Gabriel J.E. Rinkel, Jan H. Veldink, Ynte M. Ruigrok, Anne Hege Aamodt, Anne Heidi Skogholt, Ben M Brumpton, Cristen J Willer, Else C Sandset, Espen S Kristoffersen, Hanne Ellekjær, Ingrid Heuch, Jonas B Nielsen, Knut Hagen, Kristian Hveem, Lars G Fritsche, Laurent F Thomas, Linda M Pedersen, Maiken E Gabrielsen, Oddgeir L Holmen, Sigrid Børte, Wei Zhou, Shérine Abboud, Massimo Pandolfo, Vincent Thijs, Didier Leys, Marie Bodenant, Fabien Louillet, Emmanuel Touzé, Jean-Louis Mas, Yves Samson, Sara Leder, Anne Léger, Sandrine Deltour, Sophie Crozier, Isabelle Méresse, Sandrine Canaple, Olivier Godefroy, Maurice Giroud, Yannick Béjot, Pierre Decavel, Elizabeth Medeiros, Paola Montiel, Thierry Moulin, Fabrice Vuillier, Jean Dallongeville, Antti J Metso, Tiina Metso, Turgut Tatlisumak, Caspar Grond-Ginsbach, Christoph Lichy, Manja Kloss, Inge Werner, Marie-Luise Arnold, Michael Dos Santos, Armin Grau, Martin Dichgans, Constanze Thomas-Feles, Ralf Weber, Tobias Brandt, Alessandro Pezzini, Valeria De Giuli, Filomena Caria, Loris Poli, Alessandro Padovani, Anna Bersano, Silvia Lanfranconi, Simone Beretta, Carlo Ferrarese, Giacomo Giacolone, Stefano Paolucci, Philippe Lyrer, Stefan Engelter, Felix Fluri, Florian Hatz, Dominique Gisler, Leo Bonati, Henrik Gensicke, Margareth Amort, Hugh Markus, Jennifer Majersik, Bradford Worrall, Andrew Southerland, John Cole, Steven Kittner, Evangelos Evangelou, Helen R Warren, He Gao, Georgios Ntritsos, Niki Dimou, Tonu Esko, Reedik Mägi, Lili Milani, Peter Almgren, Thibaud Boutin, Jun Ding, Franco Giulianini, Elizabeth G Holliday, Anne U Jackson, Ruifang Li-Gao, Wei-Yu Lin, Jian’an Luan, Massimo Mangino, Christopher Oldmeadow, Bram Peter Prins, Yong Qian, Muralidharan Sargurupremraj, Nabi Shah, Praveen Surendran, Sébastien Thériault, Niek Verweij, Sara M Willems, Jing-Hua Zhao, John Connell, Renée de Mutsert, Alex SF Doney, Martin Farrall, Cristina Menni, Andrew D Morris, Raymond Noordam, Guillaume Paré, Neil R Poulter, Denis C Shields, Alice Stanton, Simon Thom, Gonçalo Abecasis, Najaf Amin, Dan E Arking, Kristin L Ayers, Caterina M Barbieri, Chiara Batini, Joshua C Bis, Tineka Blake, Murielle Bochud, Michael Boehnke, Eric Boerwinkle, Dorret I Boomsma, Erwin P Bottinger, Peter S Braund, Marco Brumat, Archie Campbell, Harry Campbell, Aravinda Chakravarti, John C Chambers, Ganesh Chauhan, Marina Ciullo, Massimiliano Cocca, Francis Collins, Heather J Cordell, Gail Davies, Martin H de Borst, Eco J de Geus, Ian J Deary, Joris Deelen, Fabiola Del Greco M, Cumhur Yusuf Demirkale, Marcus Dörr, Georg B Ehret, Roberto Elosua, Stefan Enroth, A Mesut Erzurumluoglu, Teresa Ferreira, Mattias Frånberg, Oscar H Franco, Ilaria Gandin, Paolo Gasparini, Vilmantas Giedraitis, Christian Gieger, Giorgia Girotto, Anuj Goel, Alan J Gow, Vilmundur Gudnason, Xiuqing Guo, Ulf Gyllensten, Anders Hamsten, Tamara B Harris, Sarah E Harris, Catharina A Hartman, Aki S Havulinna, Andrew A Hicks, Edith Hofer, Albert Hofman, Jouke-Jan Hottenga, Jennifer E Huffman, Shih-Jen Hwang, Erik Ingelsson, Alan James, Rick Jansen, Marjo-Riitta Jarvelin, Roby Joehanes, Åsa Johansson, Andrew D Johnson, Peter K Joshi, Pekka Jousilahti, J Wouter Jukema, Antti Jula, Mika Kähönen, Sekar Kathiresan, Bernard D Keavney, Kay-Tee Khaw, Paul Knekt, Joanne Knight, Ivana Kolcic, Jaspal S Kooner, Seppo Koskinen, Kati Kristiansson, Zoltan Kutalik, Maris Laan, Marty Larson, Lenore J Launer, Benjamin Lehne, Terho Lehtimäki, David CM Liewald, Li Lin, Lars Lind, Cecilia M Lindgren, YongMei Liu, Ruth JF Loos, Lorna M Lopez, Yingchang Lu, Leo-Pekka Lyytikäinen, Anubha Mahajan, Chrysovalanto Mamasoula, Jaume Marrugat, Jonathan Marten, Yuri Milaneschi, Anna Morgan, Andrew P Morris, Alanna C Morrison, Peter J Munson, Mike A Nalls, Priyanka Nandakumar, Christopher P Nelson, Teemu Niiranen, Ilja M Nolte, Teresa Nutile, Albertine J Oldehinkel, Ben A Oostra, Paul F O’Reilly, Elin Org, Sandosh Padmanabhan, Walter Palmas, Aarno Palotie, Alison Pattie, Brenda WJH Penninx, Markus Perola, Annette Peters, Ozren Polasek, Peter P Pramstaller, Quang Tri Nguyen, Olli T Raitakari, Rainer Rettig, Kenneth Rice, Paul M Ridker, Janina S Ried, Harriëtte Riese, Samuli Ripatti, Antonietta Robino, Lynda M Rose, Jerome I Rotter, Igor Rudan, Daniela Ruggiero, Yasaman Saba, Cinzia F Sala, Veikko Salomaa, Nilesh J Samani, Antti-Pekka Sarin, Reinhold Schmidt, Helena Schmidt, Nick Shrine, David Siscovick, Albert V Smith, Harold Snieder, Siim Sõber, Rossella Sorice, John M Starr, David J Stott, David P Strachan, Rona J Strawbridge, Johan Sundström, Morris A Swertz, Kent D Taylor, Alexander Teumer, Martin D Tobin, Maciej Tomaszewski, Daniela Toniolo, Michela Traglia, Stella Trompet, Jaakko Tuomilehto, Christophe Tzourio, André G Uitterlinden, Ahmad Vaez, Peter J van der Most, Cornelia M van Duijn, Germaine C Verwoert, Veronique Vitart, Uwe Völker, Peter Vollenweider, Dragana Vuckovic, Hugh Watkins, Sarah H Wild, Gonneke Willemsen, James F Wilson, Alan F Wright, Jie Yao, Tatijana Zemunik, Weihua Zhang, John R Attia, Adam S Butterworth, Daniel I Chasman, David Conen, Francesco Cucca, John Danesh, Caroline Hayward, Joanna MM Howson, Markku Laakso, Edward G Lakatta, Claudia Langenberg, Olle Melander, Dennis O Mook-Kanamori, Colin NA Palmer, Lorenz Risch, Robert A Scott, Rodney J Scott, Peter Sever, Tim D Spector, Pim van der Harst, Nicholas J Wareham, Eleftheria Zeggini, Daniel Levy, Patricia B Munroe, Christopher Newton-Cheh, Morris J Brown, Andres Metspalu, Bruce M. Psaty, Louise V Wain, Paul Elliott, Mark J Caulfield, Padhraig Gormley, Verneri Anttila, Priit Palta, Tune H Pers, Kai-How Farh, Ester Cuenca-Leon, Mikko Muona, Nicholas A Furlotte, Tobias Kurth, Andres Ingason, George McMahon, Lannie Ligthart, Gisela M Terwindt, Mikko Kallela, Tobias M Freilinger, Caroline Ran, Scott G Gordon, Anine H Stam, Stacy Steinberg, Guntram Borck, Markku Koiranen, Lydia Quaye, Hieab H H Adams, Juho Wedenoja, David A Hinds, Julie E Buring, Markus Schürks, Maria Gudlaug Hrafnsdottir, Hreinn Stefansson, Susan M Ring, Brenda W J H Penninx, Markus Färkkilä, Ville Artto, Mari Kaunisto, Salli Vepsäläinen, Rainer Malik, Andrew C Heath, Pamela A F Madden, Nicholas G Martin, Grant W Montgomery, Mitja I Kurki, Mart Kals, Kalle Pärn, Eija Hämäläinen, Hailiang Huang, Andrea E Byrnes, Lude Franke, Jie Huang, Evie Stergiakouli, Phil H Lee, Cynthia Sandor, Caleb Webber, Zameel Cader, Bertram Muller-Myhsok, Stefan Schreiber, Thomas Meitinger, Johan G Eriksson, Kauko Heikkilä, Elizabeth Loehrer, Andre G Uitterlinden, Lynn Cherkas, Audun Stubhaug, Christopher S Nielsen, Minna Männikkö, Evelin Mihailov, Hartmut Göbel, Ann-Louise Esserlind, Anne Francke Christensen, Thomas Folkmann Hansen, Thomas Werge, Jaakko Kaprio, Arpo J Aromaa, Olli Raitakari, M Arfan Ikram, Tim Spector, Marjo-Riitta Järvelin, Christian Kubisch, Michel D Ferrari, Andrea C Belin, Maija Wessman, Arn M J M van den Maagdenberg, George Davey Smith, Kari Stefansson, Nicholas Eriksson, Mark J Daly, Benjamin M Neale, Jes Olesen, Dale R Nyholt, Masato Akiyama, Varinder S. Alg, Joseph P. Broderick, Ben M. Brumpton, Jérôme Dauvillier, Hubert Desal, Christian Dina, Christoph M. Friedrich, Emília I. Gaál-Paavola, Jean-Christophe Gentric, Sven Hirsch, Isabel C. Hostettler, Henry Houlden, Juha E. Jääskeläinen, Marianne Bakke Johnsen, Liming Li, Kuang Lin, Antti Lindgren, Olivier Martin, Koichi Matsuda, Iona Y. Millwood, Olivier Naggara, Mika Niemelä, Joanna Pera, Richard Redon, Guy A. Rouleau, Marie Søfteland Sandvei, Sabine Schilling, Eimad Shotar, Agnieszka Slowik, Chikashi Terao, W. M. Monique Verschuren, Robin G. Walters, David J. Werring, Cristen J. Willer, Daniel Woo, Bradford B. Worrall, Sirui Zhou, Biological Psychology, Amsterdam Reproduction & Development, APH - Mental Health, APH - Methodology, AMS - Sports, AMS - Ageing & Vitality, APH - Personalized Medicine, APH - Health Behaviors & Chronic Diseases, Systems Ecology, Sociology and Social Gerontology, Bakker, Mark K., Kanning, Jos P., Abraham, Gad, Martinsen, Amy E., Winsvold, Bendik S., Zwart, John-Anker, Bourcier, Romain, Sawada, Tomonobu, Koido, Masaru, Kamatani, Yoichiro, Morel, Sandrine, Amouyel, Philippe, Debette, Stéphanie, Bijlenga, Philippe, Berrandou, Takiy, Ganesh, Santhi K., Bouatia-Naji, Nabila, Jones, Gregory, Bown, Matthew, Rinkel, Gabriel J. E., Veldink, Jan H., Ruigrok, Ynte M., Girotto, G., All-In Stroke, Hunt, Group, Cadisp, Consortium for Blood Pressure, International, Headache Genetics Consortium, International, Stroke Genetics Consortium (ISGC) Intracranial Aneurysm Working Group, International, Utrecht University [Utrecht], Baker Heart and Diabetes Institute (AUSTRALIA), University of Melbourne, University of Oslo (UiO), Norwegian University of Science and Technology (NTNU), Oslo University Hospital [Oslo], Centre hospitalier universitaire de Nantes (CHU Nantes), unité de recherche de l'institut du thorax UMR1087 UMR6291 (ITX), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - UFR de Médecine et des Techniques Médicales (Nantes Univ - UFR MEDECINE), Nantes Université - pôle Santé, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Santé, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), The University of Tokyo (UTokyo), RIKEN Center for Integrative Medical Sciences [Yokohama] (RIKEN IMS), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Hôpital Universitaire de Genève = University Hospitals of Geneva (HUG), Université de Genève = University of Geneva (UNIGE), Excellence Laboratory LabEx DISTALZ, Facteurs de Risque et Déterminants Moléculaires des Maladies liées au Vieillissement - U 1167 (RID-AGE), Institut Pasteur de Lille, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Bordeaux [Bordeaux], Paris-Centre de Recherche Cardiovasculaire (PARCC (UMR_S 970/ U970)), Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), University of Michigan Medical School [Ann Arbor], University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, University of Otago [Dunedin, Nouvelle-Zélande], University of Leicester, Laboratoire de Neurosciences Fonctionnelles et Pathologies - UR UPJV 4559 (LNFP), Université de Picardie Jules Verne (UPJV), CHU Amiens-Picardie, HUNT All-In Stroke, CADISP group, International Consortium for Blood Pressure, International Headache Genetics Consortium, International Stroke Genetics Consortium (ISGC) Intracranial Aneurysm Working Group: Anne Hege Aamodt, Anne Heidi Skogholt, Ben M Brumpton, Cristen J Willer, Else C Sandset, Espen S Kristoffersen, Hanne Ellekjær, Ingrid Heuch, Jonas B Nielsen, Knut Hagen, Kristian Hveem, Lars G Fritsche, Laurent F Thomas, Linda M Pedersen, Maiken E Gabrielsen, Oddgeir L Holmen, Sigrid Børte, Wei Zhou, Shérine Abboud, Massimo Pandolfo, Vincent Thijs, Didier Leys, Marie Bodenant, Fabien Louillet, Emmanuel Touzé, Jean-Louis Mas, Yves Samson, Sara Leder, Anne Léger, Sandrine Deltour, Sophie Crozier, Isabelle Méresse, Sandrine Canaple, Olivier Godefroy, Maurice Giroud, Yannick Béjot, Pierre Decavel, Elizabeth Medeiros, Paola Montiel, Thierry Moulin, Fabrice Vuillier, Jean Dallongeville, Antti J Metso, Tiina Metso, Turgut Tatlisumak, Caspar Grond-Ginsbach, Christoph Lichy, Manja Kloss, Inge Werner, Marie-Luise Arnold, Michael Dos Santos, Armin Grau, Martin Dichgans, Constanze Thomas-Feles, Ralf Weber, Tobias Brandt, Alessandro Pezzini, Valeria De Giuli, Filomena Caria, Loris Poli, Alessandro Padovani, Anna Bersano, Silvia Lanfranconi, Simone Beretta, Carlo Ferrarese, Giacomo Giacolone, Stefano Paolucci, Philippe Lyrer, Stefan Engelter, Felix Fluri, Florian Hatz, Dominique Gisler, Leo Bonati, Henrik Gensicke, Margareth Amort, Hugh Markus, Jennifer Majersik, Bradford Worrall, Andrew Southerland, John Cole, Steven Kittner, Evangelos Evangelou, Helen R Warren, He Gao, Georgios Ntritsos, Niki Dimou, Tonu Esko, Reedik Mägi, Lili Milani, Peter Almgren, Thibaud Boutin, Jun Ding, Franco Giulianini, Elizabeth G Holliday, Anne U Jackson, Ruifang Li-Gao, Wei-Yu Lin, Jian'an Luan, Massimo Mangino, Christopher Oldmeadow, Bram Peter Prins, Yong Qian, Muralidharan Sargurupremraj, Nabi Shah, Praveen Surendran, Sébastien Thériault, Niek Verweij, Sara M Willems, Jing-Hua Zhao, John Connell, Renée de Mutsert, Alex Sf Doney, Martin Farrall, Cristina Menni, Andrew D Morris, Raymond Noordam, Guillaume Paré, Neil R Poulter, Denis C Shields, Alice Stanton, Simon Thom, Gonçalo Abecasis, Najaf Amin, Dan E Arking, Kristin L Ayers, Caterina M Barbieri, Chiara Batini, Joshua C Bis, Tineka Blake, Murielle Bochud, Michael Boehnke, Eric Boerwinkle, Dorret I Boomsma, Erwin P Bottinger, Peter S Braund, Marco Brumat, Archie Campbell, Harry Campbell, Aravinda Chakravarti, John C Chambers, Ganesh Chauhan, Marina Ciullo, Massimiliano Cocca, Francis Collins, Heather J Cordell, Gail Davies, Martin H de Borst, Eco J de Geus, Ian J Deary, Joris Deelen, Fabiola Del Greco M, Cumhur Yusuf Demirkale, Marcus Dörr, Georg B Ehret, Roberto Elosua, Stefan Enroth, A Mesut Erzurumluoglu, Teresa Ferreira, Mattias Frånberg, Oscar H Franco, Ilaria Gandin, Paolo Gasparini, Vilmantas Giedraitis, Christian Gieger, Giorgia Girotto, Anuj Goel, Alan J Gow, Vilmundur Gudnason, Xiuqing Guo, Ulf Gyllensten, Anders Hamsten, Tamara B Harris, Sarah E Harris, Catharina A Hartman, Aki S Havulinna, Andrew A Hicks, Edith Hofer, Albert Hofman, Jouke-Jan Hottenga, Jennifer E Huffman, Shih-Jen Hwang, Erik Ingelsson, Alan James, Rick Jansen, Marjo-Riitta Jarvelin, Roby Joehanes, Åsa Johansson, Andrew D Johnson, Peter K Joshi, Pekka Jousilahti, J Wouter Jukema, Antti Jula, Mika Kähönen, Sekar Kathiresan, Bernard D Keavney, Kay-Tee Khaw, Paul Knekt, Joanne Knight, Ivana Kolcic, Jaspal S Kooner, Seppo Koskinen, Kati Kristiansson, Zoltan Kutalik, Maris Laan, Marty Larson, Lenore J Launer, Benjamin Lehne, Terho Lehtimäki, David Cm Liewald, Li Lin, Lars Lind, Cecilia M Lindgren, YongMei Liu, Ruth Jf Loos, Lorna M Lopez, Yingchang Lu, Leo-Pekka Lyytikäinen, Anubha Mahajan, Chrysovalanto Mamasoula, Jaume Marrugat, Jonathan Marten, Yuri Milaneschi, Anna Morgan, Andrew P Morris, Alanna C Morrison, Peter J Munson, Mike A Nalls, Priyanka Nandakumar, Christopher P Nelson, Teemu Niiranen, Ilja M Nolte, Teresa Nutile, Albertine J Oldehinkel, Ben A Oostra, Paul F O'Reilly, Elin Org, Sandosh Padmanabhan, Walter Palmas, Aarno Palotie, Alison Pattie, Brenda Wjh Penninx, Markus Perola, Annette Peters, Ozren Polasek, Peter P Pramstaller, Quang Tri Nguyen, Olli T Raitakari, Rainer Rettig, Kenneth Rice, Paul M Ridker, Janina S Ried, Harriëtte Riese, Samuli Ripatti, Antonietta Robino, Lynda M Rose, Jerome I Rotter, Igor Rudan, Daniela Ruggiero, Yasaman Saba, Cinzia F Sala, Veikko Salomaa, Nilesh J Samani, Antti-Pekka Sarin, Reinhold Schmidt, Helena Schmidt, Nick Shrine, David Siscovick, Albert V Smith, Harold Snieder, Siim Sõber, Rossella Sorice, John M Starr, David J Stott, David P Strachan, Rona J Strawbridge, Johan Sundström, Morris A Swertz, Kent D Taylor, Alexander Teumer, Martin D Tobin, Maciej Tomaszewski, Daniela Toniolo, Michela Traglia, Stella Trompet, Jaakko Tuomilehto, Christophe Tzourio, André G Uitterlinden, Ahmad Vaez, Peter J van der Most, Cornelia M van Duijn, Germaine C Verwoert, Veronique Vitart, Uwe Völker, Peter Vollenweider, Dragana Vuckovic, Hugh Watkins, Sarah H Wild, Gonneke Willemsen, James F Wilson, Alan F Wright, Jie Yao, Tatijana Zemunik, Weihua Zhang, John R Attia, Adam S Butterworth, Daniel I Chasman, David Conen, Francesco Cucca, John Danesh, Caroline Hayward, Joanna Mm Howson, Markku Laakso, Edward G Lakatta, Claudia Langenberg, Olle Melander, Dennis O Mook-Kanamori, Colin Na Palmer, Lorenz Risch, Robert A Scott, Rodney J Scott, Peter Sever, Tim D Spector, Pim van der Harst, Nicholas J Wareham, Eleftheria Zeggini, Daniel Levy, Patricia B Munroe, Christopher Newton-Cheh, Morris J Brown, Andres Metspalu, Bruce M Psaty, Louise V Wain, Paul Elliott, Mark J Caulfield, Padhraig Gormley, Verneri Anttila, Priit Palta, Tonu Esko, Tune H Pers, Kai-How Farh, Ester Cuenca-Leon, Mikko Muona, Nicholas A Furlotte, Tobias Kurth, Andres Ingason, George McMahon, Lannie Ligthart, Gisela M Terwindt, Mikko Kallela, Tobias M Freilinger, Caroline Ran, Scott G Gordon, Anine H Stam, Stacy Steinberg, Guntram Borck, Markku Koiranen, Lydia Quaye, Hieab H H Adams, Terho Lehtimäki, Antti-Pekka Sarin, Juho Wedenoja, David A Hinds, Julie E Buring, Markus Schürks, Paul M Ridker, Maria Gudlaug Hrafnsdottir, Hreinn Stefansson, Susan M Ring, Jouke-Jan Hottenga, Brenda W J H Penninx, Markus Färkkilä, Ville Artto, Mari Kaunisto, Salli Vepsäläinen, Rainer Malik, Andrew C Heath, Pamela A F Madden, Nicholas G Martin, Grant W Montgomery, Mitja I Kurki, Mart Kals, Reedik Mägi, Kalle Pärn, Eija Hämäläinen, Hailiang Huang, Andrea E Byrnes, Lude Franke, Jie Huang, Evie Stergiakouli, Phil H Lee, Cynthia Sandor, Caleb Webber, Zameel Cader, Bertram Muller-Myhsok, Stefan Schreiber, Thomas Meitinger, Johan G Eriksson, Veikko Salomaa, Kauko Heikkilä, Elizabeth Loehrer, Andre G Uitterlinden, Albert Hofman, Cornelia M van Duijn, Lynn Cherkas, Linda M Pedersen, Audun Stubhaug, Christopher S Nielsen, Minna Männikkö, Evelin Mihailov, Lili Milani, Hartmut Göbel, Ann-Louise Esserlind, Anne Francke Christensen, Thomas Folkmann Hansen, Thomas Werge, Jaakko Kaprio, Arpo J Aromaa, Olli Raitakari, M Arfan Ikram, Tim Spector, Marjo-Riitta Järvelin, Andres Metspalu, Christian Kubisch, David P Strachan, Michel D Ferrari, Andrea C Belin, Martin Dichgans, Maija Wessman, Arn M J M van den Maagdenberg, Dorret I Boomsma, George Davey Smith, Kari Stefansson, Nicholas Eriksson, Mark J Daly, Benjamin M Neale, Jes Olesen, Daniel I Chasman, Dale R Nyholt, Aarno Palotie, Masato Akiyama, Varinder S Alg, Sigrid Børte, Joseph P Broderick, Ben M Brumpton, Jérôme Dauvillier, Hubert Desal, Christian Dina, Christoph M Friedrich, Emília I Gaál-Paavola, Jean-Christophe Gentric, Sven Hirsch, Isabel C Hostettler, Henry Houlden, Kristian Hveem, Juha E Jääskeläinen, Marianne Bakke Johnsen, Liming Li, Kuang Lin, Antti Lindgren, Olivier Martin, Koichi Matsuda, Iona Y Millwood, Olivier Naggara, Mika Niemelä, Joanna Pera, Richard Redon, Guy A Rouleau, Marie Søfteland Sandvei, Sabine Schilling, Eimad Shotar, Agnieszka Slowik, Chikashi Terao, W M Monique Verschuren, Robin G Walters, David J Werring, Cristen J Willer, Daniel Woo, Bradford B Worrall, Sirui Zhou, Psychiatry, Amsterdam Neuroscience - Complex Trait Genetics, Amsterdam Neuroscience - Mood, Anxiety, Psychosis, Stress & Sleep, and Admin, Oskar

Subjects
Advanced and Specialized Nursing, Incidence, risk assessment, Smoking/epidemiology, intracranial aneurysm, genetic heterogeneity, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, Risk Factors, Intracranial Aneurysm/epidemiology, Humans, Subarachnoid Hemorrhage/epidemiology, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, genetics, Neurology (clinical), aneurysmal subarachnoid hemorrhage, genetic, Cardiology and Cardiovascular Medicine
Abstract

Background: Recently, common genetic risk factors for intracranial aneurysm (IA) and aneurysmal subarachnoid hemorrhage (ASAH) were found to explain a large amount of disease heritability and therefore have potential to be used for genetic risk prediction. We constructed a genetic risk score to (1) predict ASAH incidence and IA presence (combined set of unruptured IA and ASAH) and (2) assess its association with patient characteristics. Methods: A genetic risk score incorporating genetic association data for IA and 17 traits related to IA (so-called metaGRS) was created using 1161 IA cases and 407 392 controls from the UK Biobank population study. The metaGRS was validated in combination with risk factors blood pressure, sex, and smoking in 828 IA cases and 68 568 controls from the Nordic HUNT population study. Furthermore, we assessed association between the metaGRS and patient characteristics in a cohort of 5560 IA patients. Results: Per SD increase of metaGRS, the hazard ratio for ASAH incidence was 1.34 (95% CI, 1.20–1.51) and the odds ratio for IA presence 1.09 (95% CI, 1.01–1.18). Upon including the metaGRS on top of clinical risk factors, the concordance index to predict ASAH hazard increased from 0.63 (95% CI, 0.59–0.67) to 0.65 (95% CI, 0.62–0.69), while prediction of IA presence did not improve. The metaGRS was statistically significantly associated with age at ASAH (β=−4.82×10 −3 per year [95% CI, −6.49×10 −3 to −3.14×10 −3 ]; P =1.82×10 −8 ), and location of IA at the internal carotid artery (odds ratio=0.92 [95% CI, 0.86–0.98]; P =0.0041). Conclusions: The metaGRS was predictive of ASAH incidence, although with limited added value over clinical risk factors. The metaGRS was not predictive of IA presence. Therefore, we do not recommend using this metaGRS in daily clinical care. Genetic risk does partly explain the clinical heterogeneity of IA warranting prioritization of clinical heterogeneity in future genetic prediction studies of IA and ASAH.

Published
2023

5. Meta-analysis of 375,000 individuals identifies 38 susceptibility loci for migraine

Author

Kai-How Farh, Caleb Webber, Albert Hofman, George McMahon, Nicholas G. Martin, Paul M. Ridker, Lynn Cherkas, Mart Kals, Dorret I. Boomsma, George Davey Smith, Verneri Anttila, Tune H. Pers, Bertram Müller-Myhsok, Ville Artto, Benjamin M. Neale, Ester Cuenca-León, Anine H. Stam, Christopher Sivert Nielsen, Hieab H.H. Adams, Guntram Borck, Andres Metspalu, Maria Gudlaug Hrafnsdottir, Martin Dichgans, Reedik Mägi, Hailiang Huang, Daniel I. Chasman, Elizabeth Loehrer, John-Anker Zwart, Thomas Meitinger, Markus Färkkilä, Cornelia M. van Duijn, Arn M. J. M. van den Maagdenberg, Evie Stergiakouli, Johan G. Eriksson, Kauko Heikkilä, Hreinn Stefansson, Nicholas A. Furlotte, Minna Männikkö, Nicholas Eriksson, Jaakko Kaprio, David P. Strachan, Juho Wedenoja, Zameel M. Cader, Scott G. Gordon, Brenda W.J.H. Penninx, Linda M. Pedersen, Olli T. Raitakari, Phil Lee, André G. Uitterlinden, Ann-Louise Esserlind, Tobias Kurth, Arpo Aromaa, Priit Palta, Jes Olesen, Audun Stubhaug, Antti-Pekka Sarin, Andres Ingason, Stefan Schreiber, Salli Vepsäläinen, Hartmut Göbel, Kalle Pärn, Jouke-Jan Hottenga, Kari Stefansson, Bendik S. Winsvold, Markku Koiranen, Tim D. Spector, Evelin Mihailov, Mikko Muona, Marjo-Riitta Järvelin, Cynthia Sandor, Anne Francke Christensen, Lude Franke, Grant W. Montgomery, Tobias Freilinger, Caroline Ran, Thomas Werge, Maija Wessman, David A. Hinds, Lannie Ligthart, Terho Lehtimäki, Lili Milani, Mari A. Kaunisto, Lydia Quaye, Andrea Carmine Belin, Eija Hamalainen, M. Arfan Ikram, Veikko Salomaa, Mark J. Daly, Dale R. Nyholt, Pamela A. F. Madden, Andrew C. Heath, Tõnu Esko, Rainer Malik, Gisela M. Terwindt, Mitja I. Kurki, Aarno Palotie, Thomas Hansen, Padhraig Gormley, Michel D. Ferrari, Susan M. Ring, Julie E. Buring, Christian Kubisch, Mikko Kallela, Andrea Byrnes, Stacy Steinberg, Jie Huang, Markus Schürks, Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI), Stem Cell Aging Leukemia and Lymphoma (SALL), Amsterdam Neuroscience - Complex Trait Genetics, Psychiatry, EMGO - Mental health, Internal Medicine, Epidemiology, Neurology, Amsterdam Neuroscience - Mood, Anxiety, Psychosis, Stress & Sleep, APH - Mental Health, Biological Psychology, and Complex Trait Genetics

Subjects
0301 basic medicine, Netherlands Twin Register (NTR), SMOOTH-MUSCLE-CELLS, Medizin, Genome-wide association study, Disease, Bioinformatics, Genome-wide association studies, 0302 clinical medicine, Familial hemiplegic migraine, GENE-EXPRESSION, Genetics, Genetics & Heredity, FAMILIAL HEMIPLEGIC MIGRAINE, International Headache Genetics Consortium, SINGLE-NUCLEOTIDE POLYMORPHISMS, 11 Medical And Health Sciences, Genomics, SDG 10 - Reduced Inequalities, 3. Good health, Migranya, Cortical spreading depression, SPREADING DEPRESSION, Life Sciences & Biomedicine, Gens, Genetic Markers, Migraine Disorders, Locus (genetics), Single-nucleotide polymorphism, Biology, GENOTYPE IMPUTATION, Polymorphism, Single Nucleotide, 03 medical and health sciences, medicine, SYSTEMATIC ANALYSIS, Humans, Genetic Predisposition to Disease, Vascular Diseases, GENOME-WIDE ASSOCIATION, Migraine, Science & Technology, Case-control study, Muscle, Smooth, 06 Biological Sciences, medicine.disease, 030104 developmental biology, Genes, MYOCARDIAL-INFARCTION, Genetic Loci, Case-Control Studies, RECEPTOR-RELATED PROTEIN-1, 030217 neurology & neurosurgery, Developmental Biology, Genome-Wide Association Study
Abstract

Migraine is a debilitating neurological disorder affecting around one in seven people worldwide, but its molecular mechanisms remain poorly understood. There is some debate about whether migraine is a disease of vascular dysfunction or a result of neuronal dysfunction with secondary vascular changes. Genome-wide association ( GWA) studies have thus far identified 13 independent loci associated with migraine. To identify new susceptibility loci, we carried out a genetic study of migraine on 59,674 affected subjects and 316,078 controls from 22 GWA studies. We identified 44 independent single-nucleotide polymorphisms ( SNPs) significantly associated with migraine risk ( P

Published
2020

6. Part I: Pituitary adenylate cyclase-activating polypeptide-38 induced migraine-like attacks in patients with and without familial aggregation of migraine

Author

Rikke Dyhr Hansen, Song Guo, Anne Francke Christensen, Anne Luise Haulund Vollesen, Jes Olesen, Ann-Louise Esserlind, Faisal Mohammed Amin, and Messoud Ashina

Subjects
Adult, Male, 0301 basic medicine, medicine.medical_specialty, Aura, Denmark, Migraine Disorders, Migraine with Aura, Adenylate kinase, Single-nucleotide polymorphism, Cyclase, Cohort Studies, 03 medical and health sciences, 0302 clinical medicine, Double-Blind Method, Internal medicine, Humans, Medicine, Infusions, Intravenous, business.industry, Family aggregation, General Medicine, Middle Aged, medicine.disease, Migraine with aura, 030104 developmental biology, Migraine, Anesthesia, Pituitary Adenylate Cyclase-Activating Polypeptide, Female, Neurology (clinical), medicine.symptom, business, 030217 neurology & neurosurgery, Cohort study
Abstract

Background Intravenous infusion of adenylate cyclase-activating polypeptide-38 (PACAP38) provokes migraine-like attacks in 65–70% of migraine sufferers. Whether aggregation of migraine in first-degree relatives contributes to this discrepancy in PACAP38-induced response is unknown. We hypothesized that genetic enrichment plays a role in triggering of migraine and that migraine without aura patients with a high family load ( ≥ 2 first-degree relatives with migraine) would report more migraine-like attacks after intravenous infusion of human PACAP38. Methods In this study, we allocated 32 previously genotyped migraine without aura patients to receive intravenous infusion of 10 pmol/kg/min PACAP38 and recorded migraine-like attacks including headache characteristics and associated symptoms. Information of familial aggregation was obtained by telephone interview of first-degree relatives using a validated semi-structured questionnaire. Results PACAP38 infusion induced a migraine-like attack in 75% (nine out of 12) of patients with high family load compared to 70% (14 out of 20) with low family load ( P = 0.761). In an explorative investigation, we found that the migraine response after PACAP38 was not associated with the risk allele of rs2274316 ( MEF2D), which confers increased risk of migraine without aura and may regulate PACAP38 expression. Conclusion Migraine response to PACAP38 infusion in migraine without aura patients is not associated with high family load or the risk allele of rs2274316 ( MEF2D).

Published
2016

7. Investigation of SNP rs2060546 immediately upstream to NTN4 in a Danish Gilles de la Tourette syndrome cohort

Author

Jes Olesen, Rayan Houssari, Fotis Tsetsos, Birgitte Bertelsen, Peristera Paschou, Shanmukha S. Padmanabhuni, Thomas Werge, Thomas Hansen, Ann-Louise Esserlind, and Zeynep Tümer

Subjects
0301 basic medicine, Gilles de la Tourette syndrome, NTN4, SNP, Single-nucleotide polymorphism, Genome-wide association study, Biology, Tourette syndrome, lcsh:RC321-571, 03 medical and health sciences, medicine, Genotyping, lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry, Original Research, Genetics, axon guidance, General Neuroscience, Netrin-4, Odds ratio, medicine.disease, SLITRK1, Single nucleotide polymorphism, 030104 developmental biology, Cohort, GTS, Neuroscience
Abstract

Gilles de la Tourette syndrome (GTS) is a neuropsychiatric disorder characterized by multiple motor and vocal tics. GTS is a complex disorder, with environmental factors and several genes involved. Although variations within a few genes such as AADAC, NRXN1, SLITRK1, HDC, and IMMP2L have been tentatively associated with GTS (in a small number of patients), the causative genes underlying GTS pathophysiology remain unknown. In a previous genome-wide association study (GWAS) a single nucleotide polymorphism (SNP, rs2060546) near the Netrin-4 (NTN4 - MIM 610401) gene was shown to be associated with GTS [odds ratio (OR) = 1.7; p-value = 5.8 × 10-7] thus warranting further investigations. As NTN4 is one of the axon guidance molecules expressed in the central nervous system and it interacts with the encoded proteins of SLIT and WNT genes guiding the growth cone toward its target, it is an attractive candidate susceptibility gene for GTS. In this study we attempted to replicate the association of rs2060546 with GTS by genotyping a Danish cohort of 240 GTS patients and 1006 healthy controls. Our results did not reveal an association (OR = 1.363; p-value = 0.3329) in the Danish cohort alone, which may be due to the small sample size. However, a meta-analysis including the present cohort and a total of 1316 GTS patients and 5023 controls from the GTS GWAS Replication Initiative (GGRI) and the first GTS-GWAS yielded a significant signal (OR = 3.74; p-value = 0.00018) and same direction of effect in the three cohorts. Thus, our study strengthens the evidence of the possible involvement of NTN4 in GTS etiology, suggesting that further studies in even larger samples and functional studies are warranted to investigate the role of this region in GTS pathogenesis.

Published
2016

8. The association between candidate migraine susceptibility loci and severe migraine phenotype in a clinical sample

Author

Torben Hansen, Thomas Hansen, Anne Francke Christensen, Ann-Louise Esserlind, Stacy Steinberg, Jes Olesen, Niels Grarup, Lise Lotte N. Husemoen, Hreinn Stefansson, Allan Linneberg, Thomas Werge, Oluf Pedersen, Esben Budtz-Jørgensen, and Maria Lurenda Westergaard

Subjects
0301 basic medicine, Male, Adult, medicine.medical_specialty, Genotype, Migraine Disorders, Replication, Single-nucleotide polymorphism, Genome-wide association study, Logistic regression, Genome-wide association studies, Polymorphism, Single Nucleotide, Migraine Disorders/genetics, 03 medical and health sciences, 0302 clinical medicine, Risk Factors, Internal medicine, Genetics, Medicine, Humans, Genetic Predisposition to Disease, Psychiatry, Genotyping, Migraine, Clinic-based sample, business.industry, Genetic Predisposition to Disease/genetics, General Medicine, Odds ratio, Middle Aged, medicine.disease, 030104 developmental biology, Phenotype, Female, Neurology (clinical), Susceptibility loci, business, 030217 neurology & neurosurgery, Blood sampling
Abstract

Introduction The objective of the study was to follow up and to test whether 12 previously identified migraine-associated single nucleotide polymorphisms were associated as risk factors and/or modifying factors for severe migraine traits in a Danish clinic-based population. Methods Semi-structured migraine interviews, blood sampling and genotyping were performed on 1806 unrelated migraineurs recruited from the Danish Headache Center. Genotyping was also performed on a control group of 6415 people with no history of migraine. Association analyses were carried out using logistic regression and odds ratios were calculated assuming an additive model for risk. The proxies for severe migraine traits (early onset of migraine; many lifetime attacks, prolonged migraine and tendency to chronification of migraine) were tested against the 12 single nucleotide polymorphisms and a combined genetic score in both a case-control and case-only logistic regression model. Results We successfully replicated five out of the 12 previously reported loci and confirmed the same direction of effects for all the 12 single nucleotide polymorphisms. In line with the recently published genome-wide association meta-analysis, the associations were significant for all migraine and migraine without aura but not for migraine with typical aura. Two single nucleotide polymorphisms (rs2274316 and rs11172113) conferred risk of many lifetime attacks inthe case-control analysis. In the case-only analysis, only three single nucleotide polymorphisms showed nominal association with many lifetime attacks and prolonged migraine attacks. Conclusion Our study supports previously reported findings on the association of several single nucleotide polymorphisms with migraine. It also suggests that the migraine susceptibility loci may be risk factors for severe migraine traits.

Published
2016

9. Future possibilities in migraine genetics

Author

Ann-Louise Esserlind, Laura Aviaja Rudkjobing, and Jes Olesen

Subjects
Exome sequencing, medicine.medical_specialty, Candidate gene, Migraine Disorders, Clinical Neurology, Genome-wide association study, Review Article, DNA sequencing, Risk Factors, Molecular genetics, Genetics, medicine, Humans, GWAS, Genetic Predisposition to Disease, Exome, Migraine, Genetic association, Whole genome sequencing, business.industry, General Medicine, Anesthesiology and Pain Medicine, Migraine with aura, Next-generation sequencing, Neurology (clinical), business, Genome-Wide Association Study
Abstract

Migraine with and without aura (MA and MO, respectively) have a strong genetic basis. Different approaches using linkage-, candidate gene- and genome-wide association studies have been explored, yielding limited results. This may indicate that the genetic component in migraine is due to rare variants; capturing these will require more detailed sequencing in order to be discovered. Next-generation sequencing (NGS) techniques such as whole exome and whole genome sequencing have been successful in finding genes in especially monogenic disorders. As the molecular genetics research progresses, the technology will follow, rendering these approaches more applicable in the search for causative migraine genes in MO and MA. To date, no studies using NGS in migraine genetics have been published. In order to gain insight into the future possibilities of migraine genetics, we have looked at NGS studies in other diseases and have interviewed three experts in the field of genetics and complex traits. The experts’ ideas suggest that the preferred NGS approach depends on the expected effect size and the frequency of the variants of interest. Family-specific variants can be found by sequencing a small number of individuals, while a large number of unrelated cases are needed to find common and rare variants. NGS is currently hampered by high cost and technical problems concurrent with analyzing large amounts of data generated, especially by whole genome sequencing. As genome-wide association chips, exome sequencing and whole genome sequencing gradually become more affordable, these approaches will be used on a larger scale. This may reveal new risk variants in migraine which may offer previously unsuspected biological insights.

Published
2012

10. A genotype-phenotype analysis of the 8q22.1 variant in migraine with aura

Author

Ann-Louise Esserlind, Jes Olesen, Han Le, Anne Werner Hauge, and M. Kirchmann

Subjects
Genetics, medicine.medical_specialty, Aura, business.industry, Single-nucleotide polymorphism, Genome-wide association study, medicine.disease, Migraine with aura, Minor allele frequency, Neurology, Migraine, Internal medicine, medicine, International Classification of Headache Disorders, Neurology (clinical), medicine.symptom, business, Familial hemiplegic migraine
Abstract

Background and purpose: Although the genetics of familial hemiplegic migraine are being unraveled, this is not the case for the prevalent types of migraine. However, a recent genome wide association study (GWAS) reported an association of the single nucleotide polymorphism (SNP) rs1835740 and migraine. The aim of this study is to evaluate the association of clinical characteristics in migraine with aura (MA) with the newly discovered minor allele A of rs1835740 at 8q22.1. Methods: Participants were recruited from the Danish Headache Center and from specialist practices during the periods 1999–2002 and 2005–2006, and diagnosed according to the International Classification of Headache Disorders (ICHD-II) using a validated physician-conducted semi-structured interview. A large number of clinical characteristics were systematically determined. Caucasians of Danish ancestry diagnosed with MA and successfully genotyped for the SNP rs1835740 were included. Patients with hemiplegic migraine were excluded. Blood samples were collected for extraction of genomic DNA and genotyped for the common susceptibility variant rs1835740. Results: Six hundred and ninety one successfully genotyped MA patients with substantial description of their clinical characteristics were included. Two hundred and fifty one were heterozygous and 40 were homozygote for the variant marker. Carriers of the rs1835740 variant showed a non-significant tendency towards having a higher frequency of aura symptoms and a non-significant tendency towards milder migraine headache characteristics and fewer accompanying symptoms. These tendencies were not increased in homozygote carriers. Conclusion: None of the clinical characteristics of MA were significantly influenced by the common susceptibility variant on 8q22.1.

Published
2011

11. Injuries of the hand and forearm in young children caused by steam roller presses in laundries

Author

Lars B. Dahlin, Elinor Ljungberg, and Ann-Louise Esserlind

Subjects
Male, medicine.medical_specialty, medicine.medical_treatment, Emigrants and Immigrants, Compartment Syndromes, Surgical Flaps, Fasciotomy, Avulsion, Fractures, Bone, Forearm, medicine, Humans, Carpal tunnel, Child, Laundering, Sweden, Hand injury, Multiple Trauma, business.industry, Forearm Injuries, Hand Injuries, Infant, Hand surgery, General Medicine, Length of Stay, medicine.disease, Surgery, Causality, Household Work, Steam, Treatment Outcome, medicine.anatomical_structure, Accidents, Home, Child, Preschool, Female, Hamate Bone, Contracture, medicine.symptom, Burns, business
Abstract

Fourteen children (median age 43 months, range 14-82 months; 7 girls and 7 boys) were treated for mangle injuries (one hot steam, and 13 cold roller presses) to the hand and forearm between 1996-2002 at the Department of Hand Surgery, Malmö, Sweden. All children had unilateral skin damage with avulsion or necrosis of skin in nine. Seven of the 14 had signs of compartment and carpal tunnel syndromes and three had fractures (phalanges or hamate bone). Initial treatment included fasciotomy, decompression, and skin revision with split skin grafts and later further skin cover, including one pedicled ulnar flap. IN eight the injuries healed uneventfully, while six had slight consequences (such as minor extension deficit of fingers or slight contracture of the scar). Ten of the 14 children came from immigrant families. Mangle injuries can be prevented through better supervision of children by parents when the mangle is being used, and dissemination of information of the potential hazards in relevant languages in residential areas with large immigrant populations.

Published
2008

12. Meta-analysis of 375,000 individuals identifies 38 susceptibility loci for migraine

Author

Dorret I. Boomsma, Arn M. J. M. van den Maagdenberg, Kai-How Farh, Linda M. Pedersen, Evelin Mihailov, Lydia Quaye, Bertram Müller-Myhsok, Zameel M. Cader, David A. Hinds, Albert Hofman, George McMahon, Lynn Cherkas, Andrea Byrnes, Christopher Sivert Nielsen, Priit Palta, Kauko Heikkilä, Lili Milani, Caleb Webber, Elizabeth Loehrer, Maija Wessman, Stacy Steinberg, Stefan Schreiber, John-Anker Zwart, Nicholas A. Furlotte, Nicholas G. Martin, Paul M. Ridker, Nicholas Eriksson, André G. Uitterlinden, M. Arfan Ikram, Anine H. Stam, Audun Stubhaug, Hieab H.H. Adams, Markus Färkkilä, Verneri Anttila, Antti-Pekka Sarin, Salli Vepsäläinen, Jouke-Jan Hottenga, Pamela A. F. Madden, Andrew C. Heath, Brenda W.J.H. Penninx, Tobias Kurth, Ester Cuenca-León, Kari Stefansson, Veikko Salomaa, Dale R. Nyholt, Jaakko Kaprio, Andrea Carmine Belin, Tune H. Pers, Cynthia Sandor, Eija Hamalainen, Hailiang Huang, Lude Franke, Jie Huang, George Davey Smith, Jes Olesen, Anne Francke Christensen, Juho Wedenoja, Tobias Freilinger, Scott G. Gordon, Mari A. Kaunisto, Hreinn Stefansson, Guntram Borck, Maria Gudlaug Hrafnsdottir, David P. Strachan, Ville Artto, Johan G. Eriksson, Minna Männikkö, Evie Stergiakouli, Thomas Meitinger, Markus Schürks, Olli T. Raitakari, Arpo Aromaa, Mark J. Daly, Marjo-Riitta Järvelin, Andres Ingason, Martin Dichgans, Tim D. Spector, Cornelia M. van Duijn, Mikko Muona, Daniel I. Chasman, Hartmut Göbel, Andres Metspalu, Aarno Palotie, Michel D. Ferrari, Grant W. Montgomery, Susan M. Ring, Caroline Ran, Thomas Werge, Lannie Ligthart, Terho Lehtimäki, Julie E. Buring, Christian Kubisch, Mikko Kallela, Phil Lee, Ann-Louise Esserlind, Bendik S. Winsvold, Markku Koiranen, Benjamin M. Neale, Tõnu Esko, Rainer Malik, Gisela M. Terwindt, Thomas Hansen, and Padhraig Gormley

Subjects
Subset Analysis, Genetics, 0303 health sciences, Aura, Single-nucleotide polymorphism, Locus (genetics), Disease, Biology, medicine.disease, Migraine with aura, 3. Good health, 03 medical and health sciences, 0302 clinical medicine, Migraine, Meta-analysis, medicine, medicine.symptom, 030217 neurology & neurosurgery, 030304 developmental biology
Abstract

Migraine is a debilitating neurological disorder affecting around 1 in 7 people worldwide, but its molecular mechanisms remain poorly understood. Some debate exists over whether migraine is a disease of vascular dysfunction, or a result of neuronal dysfunction with secondary vascular changes. Genome-wide association (GWA) studies have thus far identified 13 independent loci associated with migraine. To identify new susceptibility loci, we performed the largest genetic study of migraine to date, comprising 59,674 cases and 316,078 controls from 22 GWA studies. We identified 45 independent single nucleotide polymorphisms (SNPs) significantly associated with migraine risk (P < 5 x 10-8) that map to 38 distinct genomic loci, including 28 loci not previously reported and the first locus identified on chromosome X. Furthermore, a subset analysis for migraine without aura (MO) identified seven of the same loci as from the full sample, whereas no loci reached genome-wide significance in the migraine with aura (MA) subset. In subsequent computational analyzes, the identified loci showed enrichment for genes expressed in vascular and smooth muscle tissues, consistent with a predominant theory of migraine that highlights vascular etiologies.

Published
2015
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13. The influence of genetic constitution on migraine drug responses

Author

Anne Francke Christensen, Ann-Louise Esserlind, Kari Stefansson, Thomas Werge, Jes Olesen, and Hreinn Stefansson

Subjects
0301 basic medicine, Drug, Adult, Male, medicine.medical_specialty, Genotype, media_common.quotation_subject, Migraine Disorders, Drug Resistance, Single-nucleotide polymorphism, Triptans, Logistic regression, Polymorphism, Single Nucleotide, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, medicine, Odds Ratio, Humans, Migraine treatment, Psychiatry, Genotyping, media_common, Analgesics, business.industry, General Medicine, Middle Aged, Serotonin 5-HT1 Receptor Agonists, medicine.disease, Tryptamines, DNA-Binding Proteins, 030104 developmental biology, Migraine, Ergotamine, Female, Neurology (clinical), business, 030217 neurology & neurosurgery, medicine.drug, Transcription Factors
Abstract

Objective Specific acute treatments of migraine are 5HT1B/D receptor agonists; triptans and ergotamine, but only two-thirds of patients respond well without side effects. No migraine-prophylactic drugs are specific to migraine. Prophylactic drugs are selected by time-consuming “trial and error.” Personalized treatment is therefore much needed. The objective of this study was to test the effect of 12 single nucleotide polymorphisms (SNPs) significantly associated with migraine on migraine drug responses. Methods Semi-structured migraine interviews including questions on drug responses, blood samples and genotyping were performed on 1806 unrelated migraine cases recruited from the Danish Headache Center. Association analyses were carried out using logistic regression, assuming an additive model for the genetic effect. The effect on drug responses was tested for a combined genetic score and for each of the 12 SNPs. Significant findings were subsequently tested in an independent replication sample of 392 unrelated Danish migraine cases. Results A single risk variant, rs2651899 in PRDM16, was significantly associated with efficacy of triptans with an odds ratio (OR) of treatment success of 1.3, and a higher combined genetic score was significantly associated with efficacy of triptans with an OR of success of up to 2.6. A number of SNPs showed nominal preferential association with the efficacy of triptans and others with prophylactic drugs. Analyses of triptans and ergotamine complemented each other and gave a stronger signal when analyzed together. The associations between response to triptans and genetic load and rs2651899 were partially confirmed in the independent sample. Conclusion We show for the first time an association between genetic constitution and migraine drug response. This is a first step toward future individualized medicine.

Published
2015

14. Prevalence of migraine in persons with the 3243AG mutation in mitochondrial DNA

Author

Zarah Andersson, Ann Louise Esserlind, Anja Lisbeth Frederiksen, John Vissing, Song Guo, Jes Olesen, and Messoud Ashina

Subjects
0301 basic medicine, Adult, Male, medicine.medical_specialty, Mitochondrial DNA, Adolescent, Aura, Cross-sectional study, Denmark, Migraine Disorders, Population, DNA, Mitochondrial, DNA, Mitochondrial/genetics, 03 medical and health sciences, Young Adult, 0302 clinical medicine, Internal medicine, Epidemiology, Migraine Disorders/epidemiology, medicine, Prevalence, Humans, Psychiatry, education, Migraine, Aged, Aged, 80 and over, education.field_of_study, business.industry, Headache, Middle Aged, medicine.disease, Migraine with aura, Denmark/epidemiology, 030104 developmental biology, Cross-Sectional Studies, Neurology, Cohort, Mutation, Female, Neurology (clinical), medicine.symptom, business, Mitochondrial dysfunction, 030217 neurology & neurosurgery, G%22">mDNA 3243A>G
Abstract

Background and purpose: Over the last three decades mitochondrial dysfunction has been postulated to be a potential mechanism in migraine pathogenesis. The lifetime prevalence of migraine in persons carrying the 3243A>G mutation in mitochondrial DNA was investigated. Methods: In this cross-sectional study, 57 mDNA 3243A>G mutation carriers between May 2012 and October 2014 were included. As a control group, a population-based cohort from our epidemiological studies on migraine in Danes was used. History of headache and migraine was obtained by telephone interview, based on a validated semi-structured questionnaire, performed by trained physicians. Results: The prevalence of migraine is significantly higher in persons carrying the 3243A>G mutation than in controls (58% vs. 18%; P < 0.001). This applies for both subforms of migraine, migraine without aura (47% vs. 12%; P < 0.001) and migraine with aura (18% vs. 6%; P < 0.001), and in females (58% vs. 24%; P < 0.001) and males (58% vs. 12%; P < 0.001) for any migraine. Conclusions: A high prevalence of migraine in persons with the mDNA 3243A>G mutation was found. This finding suggests a clinical association between a monogenetically inherited disorder of mitochondrial dysfunction and susceptibility to migraine. Mitochondrial DNA aberrations may contribute to the pathogenesis of migraine.

Published
2015

15. Erratum: Corrigendum: Meta-analysis of 375,000 individuals identifies 38 susceptibility loci for migraine

Author

Daniel I. Chasman, Stefan Schreiber, Paul M. Ridker, Salli Vepsäläinen, Antti-Pekka Sarin, Veikko Salomaa, Christopher Sivert Nielsen, Tobias Freilinger, Markus Schürks, John-Anker Zwart, Hartmut Göbel, Lydia Quaye, Cynthia Sandor, Nicholas Eriksson, Tõnu Esko, Hieab H.H. Adams, Thomas Meitinger, Andres Ingason, Lude Franke, Rainer Malik, Brenda W.J.H. Penninx, Verneri Anttila, Julie E. Buring, Thomas Hansen, Tobias Kurth, Tim D. Spector, Padhraig Gormley, Mikko Muona, Maija Wessman, Arpo Aromaa, E. Cuenca-Leon, Marjo-Riitta Järvelin, Mikko Kallela, Nicholas A. Furlotte, Linda M. Pedersen, George Davey Smith, Mitja I. Kurki, Aarno Palotie, Reedik Mägi, David P. Strachan, Hailiang Huang, Eija Hämäläinen, Caleb Webber, Nicholas G. Martin, Arn M. J. M. van den Maagdenberg, Zameel M. Cader, Mart Kals, Stacy Steinberg, Markus Färkkilä, Pamela A. F. Madden, Michel D. Ferrari, Grant W. Montgomery, Caroline Ran, Thomas Werge, Lannie Ligthart, Jouke-Jan Hottenga, Kari Stefansson, Tune H. Pers, Bertram Müller-Myhsok, Anine H. Stam, Susan M. Ring, Andres Metspalu, Terho Lehtimäki, Jes Olesen, Andrea Byrnes, Evelin Mihailov, Andrew Heath, Kauko Heikkilä, Jaakko Kaprio, David A. Hinds, Ville Artto, Jie Huang, Maria Gudlaug Hrafnsdottir, Dale R. Nyholt, Evie Stergiakouli, Benjamin M. Neale, Dorret I. Boomsma, Martin Dichgans, Guntram Borck, Kai-How Farh, Christian Kubisch, Cornelia M. van Duijn, André G. Uitterlinden, Albert Hofman, George McMahon, Audun Stubhaug, Kalle Pärn, Priit Palta, Lynn Cherkas, Mark J. Daly, Mari A. Kaunisto, Phil Lee, Ann-Louise Esserlind, Gisela M. Terwindt, Andrea Carmine Belin, Bendik S. Winsvold, Markku Koiranen, Johan G. Eriksson, Minna Männikkö, Olli T. Raitakari, Hreinn Stefansson, Anne Francke Christensen, Juho Wedenoja, Scott G. Gordon, M. Arfan Ikram, Elizabeth Loehrer, and Lili Milani

Subjects
0301 basic medicine, Genetics, Published Erratum, MEDLINE, Biology, medicine.disease, Article, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Migraine, Meta-analysis, medicine, Susceptibility locus, 030217 neurology & neurosurgery
Abstract

Migraine is a debilitating neurological disorder affecting around 1 in 7 people worldwide, but its molecular mechanisms remain poorly understood. Some debate exists over whether migraine is a disease of vascular dysfunction or a result of neuronal dysfunction with secondary vascular changes. Genome-wide association (GWA) studies have thus far identified 13 independent loci associated with migraine. To identify new susceptibility loci, we performed the largest genetic study of migraine to date, comprising 59,674 cases and 316,078 controls from 22 GWA studies. We identified 44 independent single nucleotide polymorphisms (SNPs) significantly associated with migraine risk (P < 5 × 10−8) that map to 38 distinct genomic loci, including 28 loci not previously reported and the first locus identified on chromosome X. In subsequent computational analyses, the identified loci showed enrichment for genes expressed in vascular and smooth muscle tissues, consistent with a predominant theory of migraine that highlights vascular etiologies.

Published
2016

16. Genome-wide association study identifies four loci associated with eruption of permanent teeth

Author

Nicholas J. Timpson, Frank Geller, George Davey Smith, Hao Zhang, John R. Shaffer, Ellen A. Nohr, Thorkild I. A. Sørensen, Mads Melbye, Mark Lathrop, Mary L. Marazita, David M. Evans, Lavinia Paternoster, Thomas Hansen, Robert J. Weyant, Jes Olesen, Jeffrey C. Murray, Heather A. Boyd, Ann-Louise Esserlind, Bjarke Feenstra, Thomas Werge, Ghazaleh Fatemifar, and Steven M. Levy

Subjects
Male, Cancer Research, Heredity, Denmark, Tooth eruption, Peroxisomal Biogenesis Factor 2, Genome-wide association study, QH426-470, Tooth Eruption, Cohort Studies, 0302 clinical medicine, Child, Genetics (clinical), Permanent teeth, Genetics, 0303 health sciences, Dentition, Genomics, Female, Cohort study, Research Article, Adolescent, Genotype, Biology, Polymorphism, Single Nucleotide, Molecular Genetics, 03 medical and health sciences, Genome Analysis Tools, medicine, Genome-Wide Association Studies, Humans, Allele, Tooth, Deciduous, Molecular Biology, Ecology, Evolution, Behavior and Systematics, Alleles, 030304 developmental biology, HMGA2 Protein, Membrane Proteins, Computational Biology, Human Genetics, 030206 dentistry, medicine.disease, Confidence interval, United States, Malocclusion, Demography, Genome-Wide Association Study
Abstract

The sequence and timing of permanent tooth eruption is thought to be highly heritable and can have important implications for the risk of malocclusion, crowding, and periodontal disease. We conducted a genome-wide association study of number of permanent teeth erupted between age 6 and 14 years, analyzed as age-adjusted standard deviation score averaged over multiple time points, based on childhood records for 5,104 women from the Danish National Birth Cohort. Four loci showed association at P, Author Summary While genome-wide association studies (GWAS) initially focused on the disease under investigation, additional findings in secondary traits have shown further benefits of having extensive phenotype data at hand. Using records from the nationwide dental registry for children and genotype data from two GWAS, we were able to identify four genomic loci associated with permanent tooth eruption in children. Two of the identified genomic regions had no previous GWAS findings, whereas two loci were reported in the context of primary dentition. A follow-up in an on-going GWAS showed that rs7924176 also plays a substantial role in primary dentition. During the age period of permanent tooth eruption many important developmental processes take place. Thus, we suggest following up the four reported SNPs in other growth-related traits to further elucidate the genetic background of maturation.

Published
2011

17. Coping with syncope in the emergency department

Author

Ann-Louise Esserlind and Thomas Schmidt

Subjects
Coping (psychology), medicine.medical_specialty, business.industry, Emergency medicine, Poster Presentation, Emergency Medicine, lcsh:Medical emergencies. Critical care. Intensive care. First aid, Medicine, In patient, Emergency department, lcsh:RC86-88.9, Critical Care and Intensive Care Medicine, business
Abstract

Background Syncope is frequently seen in the Emergency Department (ED) and is a cause for numerous hospitalizations. Focusing primarily on syncope, the aim of this study was to determine the frequency and the underlying causes of transient loss of consciousness in patients seen in the ED. Furthermore, the aim was to identify the indications for admittance and discharge of patients with syncope after the primary evaluation was performed in an ED that does not have syncope guidelines.

Published
2010

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