Blar i Norwegian Institute of Public Health Open Repository på forfatter "Andreassen, Ole Andreas"
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Identification of genetic overlap and novel risk loci for attention-deficit/hyperactivity disorder and bipolar disorder
O`Connell, Kevin; Shadrin, Alexey A.; Bahrami, Shahram; Smeland, Olav Bjerkehagen; Bettella, Francesco; Frei, Oleksandr; Krull, Florian; Askeland, Ragna Bugge; Walters, Bragi; Davíðsdóttir, Katrín; Haraldsdóttir, Gyða; Guðmundsson, Ólafur; Stefánsson, Hreinn; Fan, Chun C.; Steen, Nils Eiel; Reichborn-Kjennerud, Ted; Dale, Anders; Stefánsson, Kári; Djurovic, Srdjan; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2019)Differential diagnosis between childhood onset attention-deficit/hyperactivity disorder (ADHD) and bipolar disorder (BD) remains a challenge, mainly due to overlapping symptoms and high rates of comorbidity. Despite this, ... -
Loss-of-function variants in ABCA7 confer risk of Alzheimer’s disease
Steinberg, Stacy; Stefansson, Hreinn; Jonsson, Thorlakur; Johannsdottir, Hrefna; Ingason, Andrés; Helgason, Hannes; Sulem, Patrick; Magnusson, Olafur Th; Gudjunsson, Sigurjon A; Unnsteinsdottir, Unnur; Kong, Augustine; Helisalmi, Seppo; Soininen, Hilkka; Lah, James J; Aarsland, Dag; Fladby, Tormod; Ulstein, Ingun; Djurovic, Srdjan; Sando, Sigrid Botne; White, Linda; Knudsen, Gun Peggy; Westlye, Lars Tjelta; Selbæk, Geir; Giegling, Ina; Hampel, Harald; Hiltunen, Mikko; Levey, AIlan I.; Andreassen, Ole Andreas; Rujescu, Dan; Jonsson, Palmi V.; Bjornsson, Sigurbjorn; Snaedal, Jon; Stefánsson, Kári (Journal article, 2015)We conducted a search for rare, functional variants altering susceptibility to Alzheimer’s disease that exploited knowledge of common variants associated with the same disease. We found that loss-of-function variants in ... -
Novel loci associated with attention-deficit/hyperactivity disorder are revealed by leveraging polygenic overlap with educational attainment
Shadrin, Alexey A.; Smeland, Olav Bjerkehagen; Zayats, Tetyana; Schork, Andrew J; Frei, Oleksandr; Bettella, Francesco; Witoelar, Aree; Li, Wen; Eriksen, Jon Alm; Krull, Florian; Djurovic, Srdjan; Faraone, Stephen V.; Reichborn-Kjennerud, Ted; Thompson, Wesley K; Johansson, Stefan; Haavik, Jan; Dale, Anders; Wang, Yunpeng; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2017) -
Reduced brain cortical folding in schizophrenia revealed in two independent samples
Nesvåg, Ragnar; Schaer, M; Haukvik, Unn Kristin H.; Westlye, Lars Tjelta; Rimol, Lars Morten; Lange, Elisabeth; Hartberg, Cecilie Bhandari; Ottet, MC; Melle, Ingrid; Andreassen, Ole Andreas; Jonsson, EG; Agartz, Ingrid; Eliez, S (Journal article, 2014) -
Shared genetic risk between eating disorder‐ and substance‐use‐related phenotypes: Evidence from genome‐wide association studies
Munn-Chernoff, Melissa A.; Johnson, Emma C.; Chou, Yi-Ling; Coleman, Jonathan R.I.; Thornton, Laura M.; Walters, Raymond K.; Yilmaz, Zeynep; Baker, Jessica H.; Hübel, Christopher; Gordon, Scott; Medland, Sarah E.; Watson, Hunna J.; Gaspar, Héléna A.; Bryois, Julien; Hinney, Anke; Leppä, Virpi M.; Mattheisen, Manuel; Ripke, Stephan; Yao, Shuyang; Giusti-Rodríguez, Paola; Hanscombe, Ken B.; Adan, Roger A.H.; Alfredsson, Lars; Ando, Tetsuya; Andreassen, Ole Andreas; Berrettini, Wade H.; Boehm, Ilka; Boni, Claudette; Perica, Vesna Boraska; Buehren, Katharina; Burghardt, Roland; Cassina, Matteo; Cichon, Sven; Clementi, Maurizio; Cone, Roger D.; Courtet, Philippe; Crow, Scott; Crowley, James J.; Danner, Unna N.; Davis, Oliver S.P.; de Zwaan, Martina; Dedoussis, George; Degortes, Daniela; DeSocio, Janiece E.; Dick, Danielle M.; Dikeos, Dimitris; Dina, Christian; Dmitrzak-Weglarz, Monika; Docampo, Elisa; Duncan, Laramie E.; Egberts, Karin; Ehrlich, Stefan; Escaramis, Geòrgia; Esko, Tõnu; Estivill, Xavier; Farmer, Anne; Favaro, Angela; Fernández-Aranda, Fernando; Fichter, Manfred M.; Fischer, Krista; Föcker, Manuel; Foretova, Lenka; Forstner, Andreas J.; Forzan, Monica; Franklin, Christopher S.; Gallinger, Steven; Giegling, Ina; Giuranna, Johanna; Gonidakis, Fragiskos; Gorwood, Philip; Mayora, Monica Gratacos; Guillaume, Sebastien; Guo, Yiran; Hákonarson, Hákon H.; Hatzikotoulas, Konstantinos; Hauser, Joanna; Hebebrand, Johannes; Helder, Sietske G.; Herms, Stefan; Herpertz-Dahlmann, Beate; Herzog, Wolfgang; Huckins, Laura M.; Hudson, James I.; Imgart, Hartmut; Inoko, Hidetoshi; Janout, Vladimir; Jiménez-Murcia, Susana; Julià, Antonio; Kalsi, Gursharan; Kaminská, Deborah; Karhunen, Leila; Karwautz, Andreas; Kas, Martien J.H.; Kennedy, James L.; Keski-Rahkonen, Anna; Kiezebrink, Kirsty; Kim, Youl-Ri; Klump, Kelly L.; Knudsen, Gun Peggy Strømstad; La Via, Maria C.; Le Hellard, Stephanie; Levitan, Robert D.; Mattingsdal, Morten; Reichborn-Kjennerud, Ted (Peer reviewed; Journal article, 2020) -
The quality of severe mental disorder diagnoses in a national health registry as compared to research diagnoses based on structured interview
Nesvåg, Ragnar; Jönsson, Erik Gunnar; Bakken, Inger Johanne; Knudsen, Gun Peggy; Reichborn-Kjennerud, Ted; Bjella, Thomas; Melle, Ingrid; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2017) -
Undetectable or subtherapeutic serum levels of antipsychotic drugs preceding switch to clozapine
Kyllesø, Lennart; Smith, Robert Løvsletten; Karlstad, Øystein; Andreassen, Ole Andreas; Molden, Espen (Peer reviewed; Journal article, 2020) -
Vitamin D status in psychotic disorder patients and healthy controls - The influence of ethnic background
Nerhus, Mari; Berg, Akiah Ottesen; Dahl, Sandra Rinne; Holvik, Kristin; Gardsjord, Erlend Strand; Weibell, Melissa Anne E.a; Bjella, Thomas; Andreassen, Ole Andreas; Melle, Ingrid (Journal article, 2015)Vitamin D deficiency is common among patients with psychotic disorders and could be due to unknown disease mechanisms or contingent factors. However most studies are performed in chronic patients and have often failed to ... -
Vitamin D status in psychotic disorder patients and healthy controls - The influence of ethnic background
Nerhus, Mari; Berg, Akiah Ottesen; Dahl, Sandra Rinne; Holvik, Kristin; Gardsjord, Erlend Strand; Weibell, Melissa Authen; Bjella, Thomas; Andreassen, Ole Andreas; Melle, Ingrid (Journal article, 2015)Vitamin D deficiency is common among patients with psychotic disorders and could be due to unknown disease mechanisms or contingent factors. However most studies are performed in chronic patients and have often failed to ...