Gardar Sveinbjornsson

Aug 27, 2024 | nature.com | Asmundur Oddsson |Valgerdur Steinthorsdottir |Gudjon R. Oskarsson |Unnur Styrkarsdottir |Gísli H. Halldórsson |Gardar Sveinbjornsson | +22 more

AbstractAge at menopause (AOM) has a substantial impact on fertility and disease risk. While many loci with variants that associate with AOM have been identified through genome-wide association studies (GWAS) under an additive model, other genetic models are rarely considered1. Here through GWAS meta-analysis under the recessive model of 174,329 postmenopausal women from Iceland, Denmark, the United Kingdom (UK; UK Biobank) and Norway, we study low-frequency variants with a large effect on AOM.

Jul 22, 2024 | nature.com | David Westergaard |Valgerdur Steinthorsdottir |Palle Duun Rohde |Xiaoping Wu |Frank Geller |Pol Sole-Navais | +22 more

AbstractBleeding in early pregnancy and postpartum hemorrhage (PPH) bear substantial risks, with the former closely associated with pregnancy loss and the latter being the foremost cause of maternal death, underscoring the severe impact on maternal–fetal health. We identified five genetic loci linked to PPH in a meta-analysis.

Oct 26, 2023 | nature.com | Gyda Bjornsdottir |Mona A. Chalmer |Astros Th. Skuladottir |Gudmundur Einarsson |Egil Ferkingstad |Solveig Gretarsdottir | +27 more

AbstractMigraine is a complex neurovascular disease with a range of severity and symptoms, yet mostly studied as one phenotype in genome-wide association studies (GWAS). Here we combine large GWAS datasets from six European populations to study the main migraine subtypes, migraine with aura (MA) and migraine without aura (MO). We identified four new MA-associated variants (in PRRT2, PALMD, ABO and LRRK2) and classified 13 MO-associated variants.

Aug 2, 2023 | nature.com | Yanick Hagemeijer |Albert Smith |Claudia Schurmann |Jennifer Brody |Gardar Sveinbjornsson |Cécile Lecoeur | +82 more

Method detailsPopulationsThe full RHR meta-analysis included 100 studies with data on RHR in up to 835,465 individuals. RHR was obtained from ECG in 54 studies, from pulse rate in 31 studies (of which seven were self-measured by the participants), from blood pressure monitor in nine studies, from electronic medical records in three studies, from manual measurement in one study and through a combination of multiple of the before mentioned methods in two studies.

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.