Thorunn Olafsdottir

Sep 14, 2024 | nature.com | Thorunn Olafsdottir |Gudmar Thorleifsson |Abhishek Niroula |Hannes P. Eggertsson |Gísli H. Halldórsson |Folkert W. Asselbergs | +9 more

AbstractImmunoglobulin G (IgG) is the main isotype of antibody in human blood. IgG consists of four subclasses (IgG1 to IgG4), encoded by separate constant region genes within the Ig heavy chain locus (IGH). Here, we report a genome-wide association study on blood IgG subclass levels. Across 4334 adults and 4571 individuals under 18 years, we discover ten new and identify four known variants at five loci influencing IgG subclass levels.

Aug 4, 2024 | nature.com | Molly Went |Gísli H. Halldórsson |Andrea Gunnell |Philip J Law |Amit Sud |Gudmar Thorleifsson | +24 more

AbstractMultiple myeloma (MM) is an incurable malignancy of plasma cells. Epidemiological studies indicate a substantial heritable component, but the underlying mechanisms remain unclear. Here, in a genome-wide association study totaling 10,906 cases and 366,221 controls, we identify 35 MM risk loci, 12 of which are novel.

Jul 3, 2023 | nature.com | Asmundur Oddsson |Patrick Sulem |Gardar Sveinbjornsson |Gudny A. Arnadottir |Valgerdur Steinthorsdottir |Gísli H. Halldórsson | +41 more

Author notesThese authors contributed equally: Asmundur Oddsson, Patrick Sulem. These authors jointly supervised this work: Kari Stefansson, Daniel F. Gudbjartsson. Authors and AffiliationsdeCODE genetics/Amgen, Inc., Reykjavik, IcelandAsmundur Oddsson, Patrick Sulem, Gardar Sveinbjornsson, Gudny A. Arnadottir, Valgerdur Steinthorsdottir, Gisli H. Halldorsson, Bjarni A. Atlason, Gudjon R. Oskarsson, Hannes Helgason, Hildigunnur Katrinardottir, Run Fridriksdottir, Brynjar O.

Jun 10, 2023 | nature.com | Asmundur Oddsson |Patrick Sulem |Gardar Sveinbjornsson |Gudny A. Arnadottir |Valgerdur Steinthorsdottir |Gísli H. Halldórsson | +41 more

Study samples and ethics declarationsFor Iceland, this study is based on whole-genome sequence data from the white blood cells of 49,708 Icelanders participating in various disease projects at deCODE Genetics14. In addition, a total of 155,250 Icelanders have been genotyped using Illumina SNP chips. All participating individuals who donated blood or buccal tissue samples, or their guardians, provided written informed consent.