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Browsing by Author "Melsted, Páll"

Browsing by Author "Melsted, Páll"

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    Bifrost: highly parallel construction and indexing of colored and compacted de Bruijn graphs 
    Holley, Guillaume; Melsted, Páll (Springer Science and Business Media LLC, 2020-09-17)
    Memory consumption of de Bruijn graphs is often prohibitive. Most de Bruijn graph-based assemblers reduce the complexity by compacting paths into single vertices, but this is challenging as it requires the uncompacted de Bruijn graph to be available ...
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    Effect of booster vaccination against Delta and Omicron SARS-CoV-2 variants in Iceland 
    Norddahl, Gudmundur L.; Melsted, Páll; Gunnarsdottir, Kristbjorg; Halldórsson, Gísli Hreinn; Olafsdottir, Thorunn; Gylfason, Arnaldur; Kristjánsson, Már; Magnusson, Olafur T.; sulem, patrick; Gudbjartsson, Daniel Fannar; Þorsteinsdóttir, Unnur; Jónsdóttir, Ingileif; Stefánsson, Kári (2022-09-28)
    By the end of July 2021, the majority of the Icelandic population had received vaccination against COVID-19. In mid-July a wave of SARS-CoV-2 infections, dominated by the Delta variant, spread through the population, followed by an Omicron wave in ...
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    Genetics and epidemiology of mutational barcode-defined clonal hematopoiesis 
    Stacey, Simon N.; Zink, Florian; Halldórsson, Gísli Hreinn; Stefánsdóttir, Lilja; Guðjónsson, Sigurjón Axel; Einarsson, Gudmundur; Hjörleifsson, Grimur; Eiríksdóttir, Þjóðbjörg; Helgadottir, Anna; Björnsdottir, Gyda; Thorgeirsson, Thorgeir E.; Ólafsdóttir, Þórunn Ásta; Jónsdóttir, Ingileif; Gretarsdottir, Solveig; Tragante, Vinicius; Magnússon, Magnús Karl; Jonsson, Hakon; Gudmundsson, Julius; Olafsson, Sigurgeir; Holm, Hilma; Gudbjartsson, Daniel F.; Sulem, Patrick; Helgason, Agnar Sturla; Þorsteinsdóttir, Unnur; Tryggvadottir, Laufey; Rafnar, Thorunn; Melsted, Páll; Úlfarsson, Magnús Örn; Viðarsson, Brynjar; Thorleifsson, Gudmar; Stefánsson, Kári (2023-11-06)
    Clonal hematopoiesis (CH) arises when a substantial proportion of mature blood cells is derived from a single hematopoietic stem cell lineage. Using whole-genome sequencing of 45,510 Icelandic and 130,709 UK Biobank participants combined with a mutational ...
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    Genome-wide association identifies seven loci for pelvic organ prolapse in Iceland and the UK Biobank 
    Ólafsdóttir, Thorhildur; Thorleifsson, Gudmar; sulem, patrick; Stefánsson, Ólafur A.; Medek, Helga; Olafsson, Karl; Ingþórsson, Orri; Guðmundsson, Valur; Jonsdottir, Ingileif; Halldorsson, Gisli; Kristjansson, Ragnar; Frigge, Michael L.; Stefánsdóttir, Lilja; Sigurðsson, Jón K.; Oddsson, Asmundur; Sigurðsson, Ásgeir; Eggertsson, Hannes P.; Melsted, Páll; Halldórsson, Bjarni; Lund, Sigrún Helga; Styrkarsdottir, Unnur; Steinthorsdottir, Valgerdur; Gudmundsson, Julius; Holm, Hilma; Tragante do O, Vinicius; Asselbergs, Folkert; Thorsteinsdottir, Unnur; Gudbjartsson, Daniel; Jónsdóttir, Kristín; Rafnar, Thorunn; Stefansson, Kari (Springer Science and Business Media LLC, 2020-03-17)
    Pelvic organ prolapse (POP) is a downward descent of one or more of the pelvic organs, resulting in a protrusion of the vaginal wall and/or uterus. We performed a genome-wide association study of POP using data from Iceland and the UK Biobank, a total ...
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    GraphTyper2 enables population-scale genotyping of structural variation using pangenome graphs 
    Eggertsson, Hannes; Kristmundsdóttir, Snædís; Beyter, Doruk; Jónsson, Hákon; Skúladóttir, Ástrós; Hardarson, Marteinn; Gudbjartsson, Daniel; Stefansson, Kari; Halldórsson, Bjarni; Melsted, Páll (Springer Science and Business Media LLC, 2019-11-27)
    Analysis of sequence diversity in the human genome is fundamental for genetic studies. Structural variants (SVs) are frequently omitted in sequence analysis studies, although each has a relatively large impact on the genome. Here, we present GraphTyper2, ...
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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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    The Lair: a resource for exploratory analysis of published RNA-Seq data 
    Pimentel, Harold; Sturmfels, Pascal; Bray, Nicolas; Melsted, Páll; Pachter, Lior (Springer Nature, 2016-12)
    Increased emphasis on reproducibility of published research in the last few years has led to the large-scale archiving of sequencing data. While this data can, in theory, be used to reproduce results in papers, it is difficult to use in practice. 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 variants with large effects provide functional insights into the pathology of migraine subtypes, with and without aura 
    Bjornsdottir, Gyda; Chalmer, Mona A.; Stefánsdóttir, Lilja; Skuladottir, Astros Th; Einarsson, Gudmundur; Andrésdóttir, Margrét; Beyter, Doruk; Ferkingstad, Egil; Gretarsdottir, Solveig; Halldórsson, Bjarni Vilhjálmur; Halldórsson, Gísli Hreinn; Helgadottir, Anna; Helgason, Hannes; Hjorleifsson Eldjarn, Grimur; Jonasdottir, Adalbjorg; Jonasdottir, Aslaug; Jónsdóttir, Ingileif; Knowlton, Kirk U.; Nadauld, Lincoln D.; Lund, Sigrún Helga; Magnusson, Olafur Th; Melsted, Páll; Moore, Kristjan H.S.; Oddsson, Asmundur; Olason, Pall I.; Sigurdsson, Asgeir; Stefansson, Olafur A.; Saemundsdottir, Jona; Sveinbjornsson, Gardar; Tragante, Vinicius; Unnsteinsdottir, Unnur; Walters, Guðmundur Bragi; Zink, Florian; Rødevand, Linn; Andreassen, Ole A.; Igland, Jannicke; Lie, Rolv T.; Haavik, Jan; Banasik, Karina; Brunak, Søren; Didriksen, Maria; T. Bruun, Mie; Erikstrup, Christian; Kogelman, Lisette J.A.; Nielsen, Kaspar R.; Sørensen, Erik; Pedersen, Ole B.; Ullum, Henrik; Bay, Jakob; Boldsen, Jens K.; Brodersen, Thorsten; Burgdorf, Kristoffer; Dinh, Khoa M.; Dowsett, Joseph; Feenstra, Bjarke; Geller, Frank; Hindhede, Lotte; Hjalgrim, Henrik; Jacobsen, Rikke L.; Jemec, Gregor; Kaspersen, Katrine; Kjerulf, Bertram D.; Larsen, Margit A.H.; Louloudis, Ioannis; Lundgaard, Agnete; Mikkelsen, Susan; Mikkelsen, Christina; Nissen, Ioanna; Nyegaard, Mette; Henriksen, Alexander P.; Rohde, Palle D.; Rostgaard, Klaus; Swinn, Michael; Thørner, Lise W.; Bruun, Mie T.; Werge, Thomas; Westergaard, David; Masson, Gisli; Þorsteinsdóttir, Unnur; Olesen, Jes; Ludvigsson, Petur; Thorarensen, Ólafur; Bjornsdottir, Anna; Sigurdardottir, Gudrun R.; Sveinsson, Ólafur Árni; Ostrowski, Sisse R.; Holm, Hilma; Gudbjartsson, Daniel F.; Thorleifsson, Gudmar; Sulem, Patrick; Stefansson, Hreinn; Thorgeirsson, Thorgeir E.; Hansen, Thomas F.; Stefánsson, Kári (2023-11)
    Migraine 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 ...