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Browsing by Author "Thorgeirsson, Gudmundur"

Browsing by Author "Thorgeirsson, Gudmundur"

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    Association of Genetically Predicted Lipid Levels With the Extent of Coronary Atherosclerosis in Icelandic Adults 
    Björnsson, Eyþór; Þorleifsson, Guðmar; Helgadóttir, Anna; Gudnason, Thorarinn; Gudbjartsson, Tomas; Andersen, Karl; Grétarsdóttir, Sólveig; Ólafsson, Ísleifur; Tragante, Vinicius; Ólafsson, Ólafur Hreiðar; Jónsdóttir, Birna; Eyjólfsson, Guðmundur I.; Sigurðardóttir, Ólöf; Thorgeirsson, Gudmundur; Gudbjartsson, Daniel; Thorsteinsdottir, Unnur; Holm, Hilma; Stefansson, Kari (American Medical Association (AMA), 2020-01-01)
    Importance: Genetic studies have evaluated the influence of blood lipid levels on the risk of coronary artery disease (CAD), but less is known about how they are associated with the extent of coronary atherosclerosis. Objective: To estimate the ...
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    Brátt hjartadrep á Íslandi í fertugum og yngri 2005-2009. Samanburður við tímabilið 1980-1984 
    Magnússon, Björn Jakob; Agnarsson, Uggi; Gudnason, Thorarinn; Thorgeirsson, Gudmundur (Læknafélag Íslands / Icelandic Medical Association, 2017-01-05)
    Inngangur: Þótt brátt hjartadrep sé fyrst og fremst sjúkdómur eldra fólks getur það valdið ótímabærum dauða, heilsubresti og skertum lífsgæðum hjá yngra fólki. Árin 1980-1984 voru nýgengi, áhættuþættir, staðsetning hjartadreps, ástand kransæða og ...
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    The CRTAC1 Protein in Plasma Is Associated With Osteoarthritis and Predicts Progression to Joint Replacement: A Large-Scale Proteomics Scan in Iceland : A Large-Scale Proteomics Scan in Iceland 
    Styrkarsdottir, Unnur; Lund, S.H.; Saevarsdottir, S.; Magnusson, M.I.; Gunnarsdottir, K.; Norddahl, Gudmundur L.; Frigge, Michael L.; Ivarsdottir, E.V.; Bjornsdottir, Gyda; Holm, Hilma; Thorgeirsson, Guðmundur; Rafnar, T.; Jonsdottir, I.; Ingvarsson, T.; Jonsson, H.; Sulem, P.; Thorsteinsdottir, U.; Gudbjartsson, Daniel Fannar; Stefansson, K.; Thorgeirsson, Gudmundur; Ingvarsson, Þorvaldur (2021-11)
    Objective: Biomarkers for diagnosis and progression of osteoarthritis (OA) are lacking. This study was undertaken to identify circulating biomarkers for OA that could predict disease occurrence and/or progression to joint replacement. Methods: Using ...
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    Genetic variability in the absorption of dietary sterols affects the risk of coronary artery disease 
    Helgadottir, Anna; Thorleifsson, Gudmar; Alexandersson, Kristjan F; Tragante, Vinicius; Þorsteinsdóttir, Margrét; Eiriksson, Finnur Freyr; Grétarsdóttir, Sólveig; Björnsson, Eyþór; Magnússon, Ólafur; Sveinbjornsson, Gardar; Jonsdottir, Ingileif; Steinthorsdottir, Valgerdur; Ferkingstad, Egil; Jensson, Brynjar Ö; Stefansson, Hreinn; Olafsson, Isleifur; Christensen, Alex H; Torp-Pedersen, Christian; Køber, Lars; Pedersen, Ole B; Erikstrup, Christian; Sørensen, Erik; Brunak, Søren; Banasik, Karina; Hansen, Thomas F; Nyegaard, Mette; Eyjólfsson, Guðmundur I.; Sigurdardottir, Olof; Þórarinsson, Björn L; Matthíasson, Stefán E.; Steingrimsdottir, Thora; Björnsson, Einar Stefán; Danielsen, Ragnar; Asselbergs, Folkert W.; Arnar, David O; Ullum, Henrik; Bundgaard, Henning; sulem, patrick; Thorsteinsdottir, Unnur; Thorgeirsson, Gudmundur; Holm, Hilma; Gudbjartsson, Daniel; Stefansson, Kari (Oxford University Press (OUP), 2020-07-21)
    Aims: To explore whether variability in dietary cholesterol and phytosterol absorption impacts the risk of coronary artery disease (CAD) using as instruments sequence variants in the ABCG5/8 genes, key regulators of intestinal absorption of dietary ...
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    Genetic variability in the uptake of dietary sterols affects the risk of coronary artery disease 
    Eiríksson, Finnur Freyr; Helgadottir, Anna; Thorleifsson, Gudmar; Alexandersson, Kristjan F.; Tragante, Vinicius; Þorsteinsdóttir, Margrét; Grétarsdóttir, Solveig; Björnsson, Eyþór; Magnússon, Ólafur; Sveinbjornsson, Gardar; Jónsdóttir, Ingileif; Steinthorsdottir, Valgerdur; Ferkingstad, Egil; Jensson, Brynjar Ö; Stefansson, Hreinn; Ólafsson, Ísleifur; Christensen, Alex H; Torp-Pedersen, Christian; Køber, Lars; Pedersen, Ole B; Erikstrup, Christian; Sorensen, Erik; Brunak, Søren; Banasik, Karina; Hansen, Thomas Folkmann; Nyegaard, Mette; Eyjolfssson, Gudmundur I; Sigurdardottir, Olof; Thorarinsson, Bjorn L; Matthiasson, Stefan E.; Steingrimsdottir, Thora; Bjornsson, Einar S; Danielsen, Ragnar; Asselbergs, Folkert W; Arnar, Davíð Ottó; Ullum, Henrik; Bundgaard, Henning; sulem, patrick; Thorsteinsdottir, Unnur; Thorgeirsson, Gudmundur; Holm, Hilma; Gudbjartsson, Daniel F; Stefansson, Kari; Sørensen, Erik; Eyjólfsson, Guðmundur I.; Þórarinsson, Björn L; Björnsson, Einar Stefán; Arnar, David O; Thorsteinsdottir, Margret; Björnsson, Eythór (2020-07-21)
    Aims To explore whether variability in dietary cholesterol and phytosterol absorption impacts the risk of coronary artery disease (CAD) using as instruments sequence variants in the ABCG5/8 genes, key regulators of intestinal absorption of dietary ...
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    Genome-wide analysis yields new loci associating with aortic valve stenosis 
    Helgadottir, Anna; Thorleifsson, Gudmar; Grétarsdóttir, Sólveig; Stefánsson, Ólafur A.; Tragante, Vinicius; Þórólfsdóttir, Rósa B.; Jonsdottir, Ingileif; Björnsson, Þorsteinn; Steinthorsdottir, Valgerdur; Verweij, Niek; Nielsen, Jonas B.; Zhou, Wei; Folkersen, Lasse; Martinsson, Andreas; Heydarpour, Mahyar; Prakash, Siddharth; Óskarsson, Gylfi; Gudbjartsson, Tomas; Geirsson, Arnar; Olafsson, Isleifur; Sigurðsson, Emil Lárus; Almgren, Peter; Melander, Olle; Franco-Cereceda, Anders; Hamsten, Anders; Fritsche, Lars; Lin, Maoxuan; Yang, Bo; Hornsby, Whitney; Guo, Dongchuan; Brummett, Chad M.; Abecasis, Gonçalo; Mathis, Michael; Milewicz, Dianna; Body, Simon C.; Eriksson, Per; Willer, Cristen J.; Hveem, Kristian; Newton-Cheh, Christopher; Smith, J. Gustav; Danielsen, Ragnar; Thorgeirsson, Gudmundur; Thorsteinsdottir, Unnur; Gudbjartsson, Daniel; Holm, Hilma; Stefansson, Kari (Springer Nature, 2018-03-07)
    Aortic valve stenosis (AS) is the most common valvular heart disease, and valve replacement is the only definitive treatment. Here we report a large genome-wide association (GWA) study of 2,457 Icelandic AS cases and 349,342 controls with a follow-up ...
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    HLA alleles, disease severity, and age associate with T-cell responses following infection with SARS-CoV-2 
    Olafsdottir, Thorunn A; Bjarnadottir, Kristbjorg; Norddahl, Gudmundur L.; Halldórsson, Gísli Hreinn; Melsted, Páll; Gunnarsdottir, Kristbjorg; Ivarsdottir, Erna; Olafsdottir, Thorhildur; Arnthorsson, Asgeir O; Theódórs, Fannar; Eyþórsson, Elías Sæbjörn; Helgason, Dadi; Eggertsson, Hannes P.; Masson, Gisli; Bjarnadottir, Solveig; Sævarsdóttir, Sædís; Runólfsdóttir, Hrafnhildur L.; Ólafsson, Ísleifur; Saemundsdottir, Jona; Sigurðsson, Martin Ingi; Ingvarsson, Ragnar Freyr; Pálsson, Runólfur; Thorgeirsson, Gudmundur; Halldórsson, Bjarni Vilhjálmur; Holm, Hilma; Kristjánsson, Már; Sulem, Patrick; Þorsteinsdóttir, Unnur; Jónsdóttir, Ingileif; Gudbjartsson, Daniel F; Stefansson, Kari (2022-09-06)
    Memory T-cell responses following SARS-CoV-2 infection have been extensively investigated but many studies have been small with a limited range of disease severity. Here we analyze SARS-CoV-2 reactive T-cell responses in 768 convalescent SARS-CoV-2-infected ...
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    Lipoprotein(a) Concentration and Risks of Cardiovascular Disease and Diabetes 
    Gudbjartsson, Daniel; Thorgeirsson, Gudmundur; sulem, patrick; Helgadottir, Anna; Gylfason, Arnaldur; Sæmundsdóttir, Jóna; Björnsson, Eyþór; Norðdahl, Guðmundur L.; Jónasdóttir, Áslaug; Jónasdóttir, Aðalbjörg; Eggertsson, Hannes; Grétarsdóttir, Sólveig; Thorleifsson, Gudmar; Indridason, Olafur Skuli; Palsson, Runolfur; Jónasson, Friðbert; Jonsdottir, Ingileif; Eyjólfsson, Guðmundur I.; Sigurðardóttir, Ólöf; Ólafsson, Ísleifur; Danielsen, Ragnar; Matthíasson, Stefán E.; Kristmundsdóttir, Snædís; Halldórsson, Bjarni V.; Hreiðarsson, Ástráður Benedikt; Valdimarsson, Einar M.; Gudnason, Thorarinn; Benediktsson, Rafn; Steinthorsdottir, Valgerdur; Thorsteinsdottir, Unnur; Holm, Hilma; Stefansson, Kari (Elsevier BV, 2019-12-17)
    Background: Lipoprotein(a) [Lp(a)] is a causal risk factor for cardiovascular diseases that has no established therapy. The attribute of Lp(a) that affects cardiovascular risk is not established. Low levels of Lp(a) have been associated with type 2 ...
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    Physical and cognitive impact following SARS-CoV-2 infection in a large population-based case-control study 
    Holm, Hilma; Ivarsdottir, Erna V; Olafsdottir, Thorhildur; Thorolfsdottir, Rosa; Eythorsson, Elias; Norland, Kristjan; Gisladottir, Rosa; Jonsdottir, Gudrun; Unnsteinsdottir, Unnur; Sveinsdottir, Kristin E; Jonsson, Benedikt A; Andresdottir, Margret; Arnar, Davíð Ottó; Arnthorsson, Asgeir O; Birgisdottir, Kolbrún; Bjarnadottir, Kristbjorg; Bjarnadottir, Solveig; Bjornsdottir, Gyda; Einarsson, Gudmundur; Eiriksdottir, Berglind; Gardarsdottir, Elisabet Eir; Gíslason, Þórarinn; Gottfreðsson, Magnús; Gudmundsdottir, Steinunn; Gudmundsson, Julius; Gunnarsdottir, Kristbjorg; Helgadottir, Anna; Helgason, Dadi; Hinriksdottir, Ingibjorg; Ingvarsson, Ragnar Freyr; Jonasdottir, Sigga S; Jónsdóttir, Ingileif; Karlsdottir, Tekla H; Kristinsdottir, Anna M; Kristinsson, Sigurður Yngvi; Kristjansdottir, Steinunn; Löve, Þorvarður Jón; Lúðvíksdóttir, Dóra; Masson, Gisli; Norddahl, Gudmundur; Olafsdottir, Thorunn; Ólafsson, Ísleifur; Rafnar, Thorunn; Runólfsdóttir, Hrafnhildur L.; Saemundsdottir, Jona; Sigurbjornsson, Svanur; Sigurdardottir, Kristin; Sigurðsson, Engilbert; Sigurðsson, Martin Ingi; Sigurdsson, Emil L; Steinthorsdottir, Valgerdur; Sveinbjornsson, Gardar; Thorarensen, Emil A; Thorbjornsson, Bjarni; Thorsteinsdottir, Brynja; Tragante, Vinicius; Ulfarsson, Magnus O; Stefansson, Hreinn; Gislason, Thorsteinn; Kristjansson, Mar; Palsson, Runolfur; Sulem, Patrick; Thorsteinsdottir, Unnur; Thorgeirsson, Gudmundur; Gudbjartsson, Daniel F; Stefansson, Kari (2023-07-06)
    BACKGROUND: Persistent symptoms are common after SARS-CoV-2 infection but correlation with objective measures is unclear. METHODS: We invited all 3098 adults who tested SARS-CoV-2 positive in Iceland before October 2020 to the deCODE Health Study. We ...
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    A PRPH splice-donor variant associates with reduced sural nerve amplitude and risk of peripheral neuropathy 
    Bjornsdottir, Gyda; Ívarsdóttir, Erna V.; Bjarnadóttir, Kristbjörg; Benonisdottir, Stefania; Gylfadottir, Sandra Sif; Arnadottir, Gudny; Benediktsson, Rafn; Halldorsson, Gisli; Helgadottir, Anna; Jónasdóttir, Aðalbjörg; Jónasdóttir, Áslaug; Jonsdottir, Ingileif; Kristinsdóttir, Anna Margrét; Magnússon, Ólafur T.; Másson, Gísli; Melsted, Páll; Rafnar, Thorunn; Sigurðsson, Ásgeir; Sigurdsson, Gunnar; Skúladóttir, Ástrós; Steinthorsdottir, Valgerdur; Styrkarsdottir, Unnur; Thorgeirsson, Gudmundur; Thorleifsson, Gudmar; Vikingsson, Arnor; Gudbjartsson, Daniel; Holm, Hilma; Stefansson, Hreinn; Thorsteinsdottir, Unnur; Norðdahl, Guðmundur L.; sulem, patrick; Thorgeirsson, Thorgeir; Stefansson, Kari (Springer Science and Business Media LLC, 2019-04-16)
    Nerve conduction (NC) studies generate measures of peripheral nerve function that can reveal underlying pathology due to axonal loss, demyelination or both. We perform a genome-wide association study of sural NC amplitude and velocity in 7045 Icelanders ...
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    Rare SCARB1 mutations associate with high-density lipoprotein cholesterol but not with coronary artery disease 
    Helgadottir, Anna; sulem, patrick; Thorgeirsson, Gudmundur; Grétarsdóttir, Sólveig; Thorleifsson, Gudmar; Jensson, Brynjar Örn; Arnadottir, Gudny; Olafsson, Isleifur; Eyjólfsson, Guðmundur I.; Sigurdardottir, Olof; Thorsteinsdottir, Unnur; Gudbjartsson, Daniel; Holm, Hilma; Stefansson, Kari (Oxford University Press (OUP), 2018-03-27)
    Aims Scavenger receptor Class B Type 1 (SR-BI) is a major receptor for high-density lipoprotein (HDL) that promotes hepatic uptake of cholesterol from HDL. A rare mutation p.P376L, in the gene encoding SR-BI, SCARB1, was recently reported to associate ...
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    Screening for Rare Coding Variants That Associate With the QTc Interval in Iceland 
    Sveinbjornsson, Gardar; Benediktsdóttir, Bára Dís; Sigfússon, Gunnlaugur; Norland, Kristjan; Davidsson, Olafur B.; Thorolfsdottir, Rosa B.; Tragante, Vinicius; Arnadottir, Gudny A.; Jensson, Brynjar O.; Katrinardottir, Hildigunnur; Fridriksdottir, Run; Gudmundsdottir, Hallbera; Ægisdóttir, Hildur Margrét; Fridriksson, Brynjar; Thorgeirsson, Gudmundur; Magnússon, Viðar; Oddsson, Asmundur; Sulem, Patrick; Gudbjartsson, Daniel F.; Holm, Hilma; Arnar, Davíð Ottó; Stefánsson, Kári (2023-07-18)
    Background Long-QT syndrome (LQTS) is a cardiac repolarization abnormality that can lead to sudden cardiac death. The most common causes are rare coding variants in the genes KCNQ1, KCNH2, and SCN5A. The data on LQTS epidemiology are limited, and ...
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    Sequence variant at 4q25 near PITX2 associates with appendicitis 
    Kristjansson, Ragnar; Benonisdottir, Stefania; Oddsson, Asmundur; Galesloot, Tessel E.; Þorleifsson, Guðmar; Aben, Katja K.; Davíðsson, Ólafur B.; Jónsson, Stefán; Arnadottir, Gudny; Jensson, Brynjar Örn; Walters, G. Bragi; Sigurðsson, Jón K.; Sigurðsson, Snævar; Holm, Hilma; Arnar, Davíð O.; Thorgeirsson, Gudmundur; Alexíusdóttir, Kristín; Jonsdottir, Ingileif; Thorsteinsdottir, Unnur; Kiemeney, Lambertus A.; Jónsson, Þorvaldur; Gudbjartsson, Daniel; Rafnar, Thorunn; sulem, patrick; Stefansson, Kari (Springer Nature, 2017-06-08)
    Appendicitis is one of the most common conditions requiring acute surgery and can pose a threat to the lives of affected individuals. We performed a genome-wide association study of appendicitis in 7,276 Icelandic and 1,139 Dutch cases and large groups ...
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    Sequence variants with large effects on cardiac electrophysiology and disease 
    Norland, Kristján; Sveinbjornsson, Gardar; Thorolfsdottir, Rosa B; Davidsson, Olafur B.; Tragante, Vinicius; Rajamani, Sridharan; Helgadottir, Anna; Grétarsdóttir, Sólveig; van Setten, Jessica; Asselbergs, Folkert W.; Sverrisson, Jon Th.; Stephensen, Sigurdur Sverrir; Óskarsson, Gylfi; Sigurðsson, Emil Lárus; Andersen, Karl; Danielsen, Ragnar; Thorgeirsson, Gudmundur; Thorsteinsdottir, Unnur; Arnar, Davíð O.; sulem, patrick; Holm, Hilma; Gudbjartsson, Daniel; Stefansson, Kari (Springer Science and Business Media LLC, 2019-10-22)
    Features of the QRS complex of the electrocardiogram, reflecting ventricular depolarisation, associate with various physiologic functions and several pathologic conditions. We test 32.5 million variants for association with ten measures of the QRS ...
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    Sequence variation at ANAPC1 accounts for 24% of the variability in corneal endothelial cell density 
    Ívarsdóttir, Erna V.; Benonisdottir, Stefania; Thorleifsson, Gudmar; sulem, patrick; Oddsson, Asmundur; Styrkarsdottir, Unnur; Kristmundsdóttir, Snædís; Arnadottir, Gudny; Thorgeirsson, Gudmundur; Jonsdottir, Ingileif; Zoega, Gunnar M.; Thorsteinsdottir, Unnur; Gudbjartsson, Daniel; Jónasson, Friðbert; Holm, Hilma; Stefansson, Kari (Springer Science and Business Media LLC, 2019-03-20)
    The corneal endothelium is vital for transparency and proper hydration of the cornea. Here, we conduct a genome-wide association study of corneal endothelial cell density (cells/mm2), coefficient of cell size variation (CV), percentage of hexagonal ...
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    Stress related disorders and risk of cardiovascular disease: population based, sibling controlled cohort study 
    Song, Huan; Fang, Fang; Arnberg, Filip; Mataix-Cols, David; Fernández de la Cruz, Lorena; Almqvist, Catarina; Fall, Katja; Lichtenstein, Paul; Thorgeirsson, Gudmundur; Valdimarsdottir, Unnur (BMJ, 2019-04-10)
    Objective To assess the association between stress related disorders and subsequent risk of cardiovascular disease. Design Population based, sibling controlled cohort study. Setting Population of Sweden. Participants 136 637 patients in the Swedish ...