GWAS meta-analysis reveals key risk loci in essential tremor pathogenesis

Astros Th. Skuladottir, Lilja Stefansdottir, Gisli H. Halldorsson, Olafur A. Stefansson, Anna Bjornsdottir, Palmi Jonsson, Vala Palmadottir, Thorgeir E. Thorgeirsson, G. Bragi Walters, Rosa S. Gisladottir, Gyda Bjornsdottir, Gudrun A. Jonsdottir, Patrick Sulem, Daniel F. Gudbjartsson, Kirk U. Knowlton, David A. Jones, Aigar Ottas, Tõnu Esko, Reedik Mägi, Mari NelisGeorgi Hudjashov, Ole B. Pedersen, Maria Didriksen, Søren Brunak, Karina Banasik, Thomas Folkmann Hansen, Christian Erikstrup, DBDS Genomic Consortium, Jakob Bay (Member of study group), Jens Kjærgaard Boldsen (Member of study group), Thorsten Brodersen (Member of study group), Kristoffer Burgdorf (Member of study group), Mona Ameri Chalmer (Member of study group), Khoa Manh Dinh (Member of study group), Joseph Dowsett (Member of study group), Bjarke Feenstra (Member of study group), Frank Geller (Member of study group), Daniel Gudbjartsson (Member of study group), Lotte Hindhede (Member of study group), Henrik Hjalgrim (Member of study group), Rikke Louise Jacobsen (Member of study group), Gregor Jemec (Member of study group), Bitten Aagaard Jensen (Member of study group), Katrine Kaspersen (Member of study group), Bertram Dalskov Kjerulff (Member of study group), Lisette Kogelman, Margit Anita Hørup Larsen (Member of study group), Ioannis Louloudis (Member of study group), Agnete Lundgaard (Member of study group), Susan Mikkelsen (Member of study group), Christina Mikkelsen (Member of study group), Ioanna Nissen (Member of study group), Mette Nyegaard (Member of study group), Ole Birger Pedersen (Member of study group), Alexander Pil Henriksen (Member of study group), Palle Duun Rohde (Member of study group), Klaus Rostgaard (Member of study group), Michael Schwinn (Member of study group), Hreinn Stefansson (Member of study group), Erik Sørensen (Member of study group), Unnur Þorsteinsdóttir (Member of study group), Lise Wegner Thørner (Member of study group), Mie Topholm Bruun (Member of study group), Henrik Ullum (Member of study group), Thomas Werge (Member of study group), David Westergaard (Member of study group), Jan Haavik, Ole A. Andreassen, David Rye, Jannicke Igland, Sisse Rye Ostrowski, Lili A. Milani, Lincoln D. Nadauld, Hreinn Stefansson, Kari Stefansson

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Abstract

Essential tremor (ET) is a prevalent neurological disorder with a largely unknown underlying biology. In this genome-wide association study meta-analysis, comprising 16,480 ET cases and 1,936,173 controls from seven datasets, we identify 12 sequence variants at 11 loci. Evaluating mRNA expression, splicing, plasma protein levels, and coding effects, we highlight seven putative causal genes at these loci, including CA3 and CPLX1. CA3 encodes Carbonic Anhydrase III and carbonic anhydrase inhibitors have been shown to decrease tremors. CPLX1, encoding Complexin-1, regulates neurotransmitter release. Through gene-set enrichment analysis, we identify a significant association with specific cell types, including dopaminergic and GABAergic neurons, as well as biological processes like Rho GTPase signaling. Genetic correlation analyses reveals a positive association between ET and Parkinson’s disease, depression, and anxiety-related phenotypes. This research uncovers risk loci, enhancing our knowledge of the complex genetics of this common but poorly understood disorder, and highlights CA3 and CPLX1 as potential therapeutic targets.
Original languageEnglish
Article number504
JournalCommunications Biology
Volume7
Issue number1
Pages (from-to)504
Number of pages1
ISSN2399-3642
DOIs
Publication statusPublished - 26 Apr 2024

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© 2024. The Author(s).

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