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Browsing by Author "Ólafsson, Sigurgeir"

Browsing by Author "Ólafsson, Sigurgeir"

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    Fourteen sequence variants that associate with multiple sclerosis discovered by meta-analysis informed by genetic correlations 
    Ólafsson, Sigurgeir; Stridh, Pernilla; Bos, Steffan Daniël; Ingason, Andrés; Euesden, Jack; sulem, patrick; Thorleifsson, Gudmar; Gústafsson, Ómar; Jóhannesson, Ari; Geirsson, Árni J.; Þórsson, Árni V.; Sigurgeirsson, Bárður; Ludviksson, Bjorn; Ólafsson, Elías; Kristjansdottir, Helga; Jónasson, Jón G.; Ólafsson, Jón Hjaltalín; Örvar, Kjartan B.; Benediktsson, Rafn; Bjarnason, Ragnar Grímur; Kristjánsdóttir, Sjöfn; Gislason, Thorarinn; Valdimarsson, Trausti; Mikaelsdóttir, Evgenía; Sigurðsson, Snævar; Jonsson, Stefan; Rafnar, Thorunn; Aarsland, Dag; Djurovic, Srdjan; Fladby, Tormod; Knudsen, Gun Peggy; Celius, Elisabeth G.; Myhr, Kjell-Morten; Gröndal, Gerður; Steinsson, Kristján; Valdimarsson, Helgi; Björnsson, Sigurður; Björnsdóttir, Unnur Steina; Björnsson, Einar Stefán; Nilsson, Bjorn; Andreassen, Ole A.; Alfredsson, Lars; Hillert, Jan; Kockum, Ingrid Skelton; Másson, Gísli; Thorsteinsdottir, Unnur; Gudbjartsson, Daniel; Stefansson, Hreinn; Hjaltason, Haukur; Harbo, Hanne F.; Olsson, Tomas; Jonsdottir, Ingileif; Stefansson, Kari (Springer Nature, 2017-08-08)
    A meta-analysis of publicly available summary statistics on multiple sclerosis combined with three Nordic multiple sclerosis cohorts (21,079 cases, 371,198 controls) revealed seven sequence variants associating with multiple sclerosis, not reported ...
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    Polygenic risk scores for schizophrenia and bipolar disorder associate with addiction 
    Reginsson, Gunnar W.; Ingason, Andrés; Euesden, Jack; Bjornsdottir, Gyda; Ólafsson, Sigurgeir; Sigurdsson, Engilbert; Óskarsson, Högni; Tyrfingsson, Þórarinn; Rúnarsdóttir, Valgerður; Hansdóttir, Ingunn; Steinberg, Stacy; Stefánsson, Hreinn; Gudbjartsson, Daniel; Thorgeirsson, Thorgeir; Stefansson, Kari (Wiley, 2017-02-23)
    We use polygenic risk scores (PRSs) for schizophrenia (SCZ) and bipolar disorder (BPD) to predict smoking, and addiction to nicotine, alcohol or drugs in individuals not diagnosed with psychotic disorders. Using PRSs for 144 609 subjects, including 10 ...
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    Reproductive fitness and genetic risk of psychiatric disorders in the general population 
    Mullins, Niamh; Ingason, Andrés; Porter, Heather; Euesden, Jack; Gillett, Alexandra; Ólafsson, Sigurgeir; Gudbjartsson, Daniel; Lewis, Cathryn M.; Sigurdsson, Engilbert; Sæmundsen, Evald E.; Guðmundsson, Ólafur Ó.; Frigge, Michael L.; Kong, Augustine; Helgason, Agnar; Walters, G. Bragi; Gústafsson, Ómar; Stefánsson, Hreinn; Stefansson, Kari (Springer Nature, 2017-06-13)
    The persistence of common, heritable psychiatric disorders that reduce reproductive fitness is an evolutionary paradox. Here, we investigate the selection pressures on sequence variants that predispose to schizophrenia, autism, bipolar disorder, major ...