• Bipolar multiplex families have an increased burden of common risk variants for psychiatric disorders 

      Andlauer, Till F.M.; Guzman-Parra, José; Streit, Fabian; Strohmaier, Jana; González, Maria José; Flores, Susana Gil; Fabeiro, Francisco J. Cabaleiro; Noriega, Francisco del Río; Perez, Fermin Perez; González, Jesus Haro; Diaz, Guillermo Orozco; Diego-Otero, Yolanda de; Moreno-Küstner, Berta; Auburger, Georg; Degenhardt, Franziska; Heilmann-Heimbach, Stefanie; Herms, Stefan; Hoffmann, Per; Frank, Josef; Foo, Jerome C.; Treutlein, Jens; Witt, Stephanie H.; Cichon, Sven; Kogevinas, Manolis; Bøen, Erlend; Dale, Anders M.; Djurovic, Srdjan; Elvsåshagen, Torbjørn; Reinbold, Céline Sonja; Smeland, Olav Bjerkehagen; Agartz, Ingrid; Melle, Ingrid; Ødegaard, Ketil Joachim; Stordal, Eystein; Andreassen, Ole; Rivas, Fabio; Mayoral, Fermín; Müller-Myhsok, Bertram; Forstner, Andreas J.; Nöthen, Markus M.; Rietschel, Marcella; Stahl, Eli A.; Breen, Gerome; McQuillin, Andrew; Ripke, Stephan; Trubetskoy, Vassily; Mattheisen, Manuel; Wang, Yunpeng; Morken, Gunnar; Vaaler, Arne (Journal article; Peer reviewed, 2021)
      Multiplex families with a high prevalence of a psychiatric disorder are often examined to identify rare genetic variants with large effect sizes. In the present study, we analysed whether the risk for bipolar disorder (BD) ...
    • Brain scans from 21,297 individuals reveal the genetic architecture of hippocampal subfield volumes 

      van der Meer, Dennis; Rokicki, Jaroslav; Kaufmann, Tobias; Còrdova Palomera, Aldo; Moberget, Torgeir; Alnæs, Dag; Bettella, Francesco; Frei, Oleksandr; Doan, Nhat Trung; Sønderby, Ida Elken; Smeland, Olav Bjerkehagen; Agartz, Ingrid; Bertolino, Alessandro; Bralten, Janita; Brandt, Christine Lycke; Buitelaar, Jan K.; Djurovic, Srdjan; van Donkelaar, Marjolein; Dørum, Erlend Solberg; Espeseth, Thomas; Faraone, Stephen V.; Fernandéz, Guillén; Fisher, Simon E.; Franke, Barbara; Haatveit, Beathe Christin; Hartman, Catharina A.; Hoekstra, Pieter J.; Håberg, Asta; Jönsson, Erik G.; Kolskår, Knut-Kristian; Le Hellard, Stephanie; Lund, Martina Jonette; Lundervold, Astri; Lundervold, Arvid; Melle, Ingrid; Monereo Sanchez, Jennifer; Norbom, Linn Christin Bonaventure; Nordvik, Jan Egil; Nyberg, Lars; Oosterlaan, Jaap; Papalino, Marco; Papassotiropoulos, Andreas; Pergola, Giulio; de Quervain, Dominique J.F.; Richard, Geneviéve´; Sanders, Anne-Marthe; Selvaggi, Pierluigi; Shumskaya, Elena; Steen, Vidar Martin; Tønnesen, Siren; Ulrichsen, Kristine Moe; Zwiers, Marcel P.; Andreassen, Ole Andreas; Westlye, Lars Tjelta (Peer reviewed; Journal article, 2018-10-02)
      The hippocampus is a heterogeneous structure, comprising histologically distinguishable subfields. These subfields are differentially involved in memory consolidation, spatial navigation and pattern separation, complex ...
    • Genetic control of variability in subcortical and intracranial volumes 

      Còrdova Palomera, Aldo; van der Meer, Dennis; Kaufmann, Tobias; Bettella, Francesco; Wang, Yunpeng; Alnæs, Dag; Doan, Nhat Trung; Agartz, Ingrid; Bertolino, Alessandro; Buitelaar, Jan; Coynel, David; Djurovic, Srdjan; Dørum, Erlend Solberg; Espeseth, Thomas; Fazio, Leonardo; Franke, Barbara; Frei, Oleksandr; Håberg, Asta; Le Hellard, Stephanie; Jönsson, Erik Gunnar; Kolskår, Knut-Kristian; Lund, Martina Jonette; Moberget, Torgeir; Nordvik, Jan; Nyberg, Lars; Papassotiropoulos, Andreas; Pergola, Giulio; de Quervain, Dominique; Rampino, Antonio; Richard, Geneviève; Rokicki, Jaroslav; Sanders, Anne-Marthe; Schwarz, Emanuel; Smeland, Olav Bjerkehagen; Steen, Vidar Martin; Starrfelt, Jostein; Sønderby, Ida Elken; Ulrichsen, Kristine Moe; Andreassen, Ole Andreas; Westlye, Lars Tjelta (Journal article; Peer reviewed, 2020)
      Sensitivity to external demands is essential for adaptation to dynamic environments, but comes at the cost of increased risk of adverse outcomes when facing poor environmental conditions. Here, we apply a novel methodology ...
    • Genome-wide analysis reveals extensive genetic overlap between schizophrenia, bipolar disorder, and intelligence 

      Smeland, Olav Bjerkehagen; Bahrami, Shahram; Frei, Oleksandr; Shadrin, Alexey A.; O'Connell, Kevin; Savage, Jeanne E.; Watanabe, Kyoko; Krull, Florian; Bettella, Francesco; Steen, Nils Eiel; Ueland, Torill; Posthuma, Danielle; Djurovic, Srdjan; Dale, Anders; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2019)
      Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental disorders associated with cognitive impairment, which is considered a major determinant of functional outcome. Despite this, the etiology of the cognitive ...
    • 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, ...
    • Inflammation and cognition in severe mental illness: patterns of covariation and subgroups 

      Sæther, Linn Sofie; Ueland, Thor; Haatveit, Beathe; Maglanoc, Luigi; Szabo, Attila; Djurovic, Srdjan; Aukrust, Pål; Roelfs, Daniël; Ormerod, Monica Bettina E. Greenwood; Lagerberg, Trine Vik; Steen, Nils Eiel; Melle, Ingrid; Andreassen, Ole; Ueland, Torill (Journal article; Peer reviewed, 2023)
      A potential relationship between dysregulation of immune/inflammatory pathways and cognitive impairment has been suggested in severe mental illnesses (SMI), such as schizophrenia (SZ) and bipolar (BD) spectrum disorders. ...
    • Lithium increases mitochondrial respiration in iPSC-derived neural precursor cells from lithium responders 

      Osete, Jordi Requena; Akkouh, Ibrahim; Reis de Assis, Denis; Szabo, Attila; Frei, Evgeniia; Hughes, Timothy; Smeland, Olav Bjerkehagen; Steen, Nils Eiel; Andreassen, Ole Andreas; Djurovic, Srdjan (Journal article; Peer reviewed, 2021)
      Lithium (Li), valproate (VPA) and lamotrigine (LTG) are commonly used to treat bipolar disorder (BD). While their clinical efficacy is well established, the mechanisms of action at the molecular level are still incompletely ...
    • Shared genetic architecture between schizophrenia and subcortical brain volumes implicates early neurodevelopmental processes and brain development in childhood 

      Cheng, Weiqiu; van der Meer, Dennis; Parker, Nadine; Hindley, Guy Frederick Lanyon; O'Connell, Kevin Sean; Wang, Yunpeng; Shadrin, Alexey; Alnæs, Dag; Bahrami, Shahram; Lin, Aihua; Karadag, Naz; Holen, Børge; Fernández-Cabello, Sara; Fan, Chun-Chieh; Dale, Anders; Djurovic, Srdjan; Westlye, Lars Tjelta; Frei, Oleksandr; Smeland, Olav Bjerkehagen; Andreassen, Ole (Journal article; Peer reviewed, 2022)
      Patients with schizophrenia have consistently shown brain volumetric abnormalities, implicating both etiological and pathological processes. However, the genetic relationship between schizophrenia and brain volumetric ...
    • Transcriptional and functional effects of lithium in bipolar disorder iPSC-derived cortical spheroids 

      Osete, Jordi Requena; Akkouh, Ibrahim Ahmed; Levglevskyi, Oleksandr; Vandenberghe, Matthieu; Reis de Assis, Denis; Ueland, Thor; Kondratskaya, Elena; Holen, Børge; Szabo, Attila; Hughes, Timothy; Smeland, Olav Bjerkehagen; Steen, Vidar Martin; Andreassen, Ole; Djurovic, Srdjan (Journal article; Peer reviewed, 2023)
      Lithium (Li) is recommended for long-term treatment of bipolar disorder (BD). However, its mechanism of action is still poorly understood. Induced pluripotent stem cell (iPSC)-derived brain organoids have emerged as a ...