• Association between complement component 4A expression, cognitive performance and brain imaging measures in UK Biobank 

      O'Connell, Kevin S.; Sønderby, Ida Elken; Frei, Oleksandr; van der Meer, Dennis; Athanasiu, Lavinia; Smeland, Olav Bjerkehagen; Alnæs, Dag; Kaufmann, Tobias; Westlye, Lars Tjelta; Steen, Vidar Martin; Andreassen, Ole Andreas; Hughes, Timothy; Djurovic, Srdjan (Journal article; Peer reviewed, 2021)
      Background Altered expression of the complement component C4A gene is a known risk factor for schizophrenia. Further, predicted brain C4A expression has also been associated with memory function highlighting that altered ...
    • Attention-deficit hyperactivity disorder shares copy number variant risk with schizophrenia and autism spectrum disorder 

      Gudmundsson, Ólafur Ó.; Walters, Gudmundur Bragi; Ingason, Andrés; Johansson, Stefan; Zayats, Tetyana; Athanasiu, Lavinia; Sønderby, Ida Elken; Gustafsson, Omar; Nawaz, Muhammad Sulaman; Jónsson, Gudbjörn F.; Jónsson, Lina; Knappskog, Per; Ingvarsdóttir, Ester; Davidsdóttir, Katrin; Djurovic, Srdjan; Knudsen, Gun Peggy Strømstad; Askeland, Ragna Bugge; Haraldsdóttir, Gyda S.; Baldursson, Gísli; Magnússon, Páll; Sigurdsson, Engilbert; Gudbjartsson, Daníel Fannar; Stéfansson, Hreinn; Andreassen, Ole Andreas; Haavik, Jan; Reichborn-Kjennerud, Ted; Stefánsson, Kári (Peer reviewed; Journal article, 2019-10-17)
      Attention-deficit/hyperactivity disorder (ADHD) is a highly heritable common childhood-onset neurodevelopmental disorder. Some rare copy number variations (CNVs) affect multiple neurodevelopmental disorders such as ...
    • Dose-dependent transcriptional effects of lithium and adverse effect burden in a psychiatric cohort 

      Krull, Florian; Akkouh, Ibrahim Ahmed; Hughes, Timothy; Bettella, Francesco; Athanasiu, Lavinia; Smeland, Olav Bjerkehagen; O'Connell, Kevin Sean; Brattbakk, Hans-Richard; Steen, Vidar Martin; Steen, Nils Eiel; Djurovic, Srdjan; Andreassen, Ole (Journal article; Peer reviewed, 2022)
      Lithium is the first-line treatment for bipolar disorder (BD), but there is a large variation in response rate and adverse effects. Although the molecular effects of lithium have been studied extensively, the specific ...
    • Elevated expression of a minor isoform of ANK3 is a risk factor for bipolar disorder 

      Hughes, Timothy; Sønderby, Ida Elken; Polushina, Tatiana; Hansson, Lars Johan Axel; Holmgren, Asbjørn; Athanasiu, Lavinia; Melbø-Jørgensen, Christian; Hassani, Sahar; Hoeffding, Louise K.; Herms, Stefan; Bergen, Sarah E.; Karlsson, Robert; Song, Jie; Rietschel, Marcella; Nöthen, Markus M.; Forstner, Andreas J.; Hoffmann, Per; Hultman, Christina M.; Landén, Mikael; Cichon, Sven; Werge, Thomas; Andreassen, Ole Andreas; Le Hellard, Stephanie; Djurovic, Srdjan (Peer reviewed; Journal article, 2018)
      Ankyrin-3 (ANK3) is one of the few genes that have been consistently identified as associated with bipolar disorder by multiple genome-wide association studies. However, the exact molecular basis of the association remains ...
    • Examining the association between genetic liability for schizophrenia and psychotic symptoms in Alzheimer's disease 

      Creese, Byron; Vassos, Evangelos; Bergh, Sverre; Athanasiu, Lavinia; Johar, Iskandar; Rongve, Arvid; Medbøen, Ingrid Tøndel; Da Silva, Miguel Vasconcelos; Aakhus, Eivind; Andersen, Fred; Bettella, Francesco; Brækhus, Anne; Djurovic, Srdjan; Paroni, Giulia; Proitsi, Petroula; Saltvedt, Ingvild; Seripa, Davide; Stordal, Eystein; Fladby, Tormod; Aarsland, Dag; Andreassen, Ole Andreas; Ballard, Clive; Selbæk, Geir (Peer reviewed; Journal article, 2019-10-22)
      Psychosis (delusions or hallucinations) in Alzheimer’s disease (AD + P) occurs in up to 50% of individuals and is associated with significantly worse clinical outcomes. Atypical antipsychotics, first developed for ...
    • GBA and APOE ε4 associate with sporadic dementia with Lewy bodies in European genome wide association study 

      Rongve, Arvid; Witoelar, Aree; Ruiz, Agustín; Athanasiu, Lavinia; Abdelnour, Carla; Clarimon, Jordi; Heilmann-Heimbach, Stefanie; Hernández, Isabel; Moreno-Grau, Sonia; de Rojas, Itziar; Morenas-Rodríguez, Estrella; Fladby, Tormod; Sando, Sigrid Botne; Bråthen, Geir; Blanc, Frédéric; Bousiges, Olivier; Lemstra, Afina W.; van Steenoven, Inger; Londos, Elisabet; Almdahl, Ina Selseth; Pålhaugen, Lene; Eriksen, Jon Alm; Djurovic, Srdjan; Stordal, Eystein; Saltvedt, Ingvild; Ulstein, Ingun; Bettella, Francesco; Desikan, Rahul S.; Idland, Ane-Victoria; Toft, Mathias; Pihlstrøm, Lasse; Snaedal, Jon; Tárraga, Lluís; Boada, Mercè; Lleó, Alberto; Stefánsson, Hreinn; Stefánsson, Kári; Ramírez, Alfredo; Aarsland, Dag; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2019-05-07)
      Dementia with Lewy Bodies (DLB) is a common neurodegenerative disorder with poor prognosis and mainly unknown pathophysiology. Heritability estimates exceed 30% but few genetic risk variants have been identified. Here we ...
    • Genome-wide analysis of attention deficit hyperactivity disorder in Norway 

      Zayats, Tetyana; Athanasiu, Lavinia; Sønderby, Ida Elken; Djurovic, Srdjan; Westlye, Lars Tjelta; Tamnes, Christian Krog; Fladby, Tormod; Aase, Heidi; Zeiner, Pål; Reichborn-Kjennerud, Ted; Knappskog, Per; Knudsen, Gun Peggy; Andreassen, Ole Andreas; Johansson, Stefan; Haavik, Jan (Peer reviewed; Journal article, 2015-04-13)
      Background Attention deficit hyperactivity disorder (ADHD) is a highly heritable neuropsychiatric condition, but it has been difficult to identify genes underlying this disorder. This study aimed to explore genetics of ...
    • Genome-wide meta-analysis for Alzheimer’s disease cerebrospinal fluid biomarkers 

      Jansen, Iris E.; van der Lee, Sven J.; Gomez-Fonseca, Duber; de Rojas, Itziar; Dalmasso, Maria Carolina; Grenier-Boley, Benjamin; Athanasiu, Lavinia; Bahrami, Shahram; Bergh, Sverre; Djurovic, Srdjan; Fladby, Tormod; Jarholm, Jonas Alexander; Knapskog, Anne Brita; Pålhaugen, Lene; Saltvedt, Ingvild; Selbæk, Geir; Selnes, Per; Andreassen, Ole; Shadrin, Alexey; Skoog, Ingmar; Soininen, Hilkka; Tsolaki, Magda; Van Broeckhoven, Christine; Van Dongen, Jasper; van Swieten, John C.; Vandenberghe, Rik; Vidal, Jean-Sébastien; Visser, Pieter J.; Vogelgsang, Jonathan; Waern, Margda; Wagner, Michael; Wiltfang, Jens; Wittens, Mandy M.J.; Zetterberg, Henrik; Zulaica, Miren; van Duijn, Cornelia M.; Bjerke, Maria; Engelborghs, Sebastiaan; Jessen, Frank; Teunissen, Charlotte E.; Pastor, Pau; Hiltunen, Mikko; Ingelsson, Martin; Clarimón, Jordi; Sleegers, Kristel; Ruiz, Agustín; Ramirez, Alfredo; Cruchaga, Carlos; Lambert, Jean-Charles; van der Flier, Wiesje M. (Journal article; Peer reviewed, 2022)
      Amyloid-beta 42 (Aβ42) and phosphorylated tau (pTau) levels in cerebrospinal fluid (CSF) reflect core features of the pathogenesis of Alzheimer’s disease (AD) more directly than clinical diagnosis. Initiated by the European ...
    • Identification of a novel polymorphism associated with reduced clozapine concentration in schizophrenia patients—a genome-wide association study adjusting for smoking habits 

      Smith, Robert Løvsletten; O’Connell, Kevin; Athanasiu, Lavinia; Djurovic, Srdjan; Kringen, Marianne K.; Andreassen, Ole Andreas; Molden, Espen (Journal article; Peer reviewed, 2020)
      Clozapine (CLZ) is the superior antipsychotic drug for treatment of schizophrenia, but exhibits an extensive interpatient pharmacokinetic variability. Here, we conducted a genome-wide association study (GWAS) of CLZ serum ...
    • Meta-analysis of Alzheimer’s disease on 9,751 samples from Norway and IGAP study identifies four risk loci 

      Witoelar, Aree; Rongve, Arvid; Almdahl, Ina Selseth; Ulstein, Ingun; Engvig, Andreas; White, Linda Rosemary; Selbæk, Geir; Stordal, Eystein; Andersen, Fredrik; Brækhus, Anne; Saltvedt, Ingvild; Engedal, Knut; Hughes, Timothy; Bergh, Sverre; Bråthen, Geir; Bogdanovic, Nenad; Bettella, Francesco; Wang, Yunpeng; Athanasiu, Lavinia; Bahrami, Shahram; Le Hellard, Stephanie; Giddaluru, Sudheer; Dale, Anders M; Sando, Sigrid Botne; Steinberg, Stacy; Stefansson, Hreinn; Snaedal, Jon; Desikan, Rahul S; Stefansson, Kari; Aarsland, Dag; Djurovic, Srdjan; Fladby, Tormod; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2018-12-27)
      A large fraction of genetic risk factors for Alzheimer’s Disease (AD) is still not identified, limiting the understanding of AD pathology and study of therapeutic targets. We conducted a genome-wide association study (GWAS) ...
    • New insights into the genetic etiology of Alzheimer's disease and related dementias 

      Bellenguez, Céline; Küçükali, Fahri; Jansen, Iris E.; Kleineidam, Luca; Moreno-Grau, Sonia; Amin, Najaf; Naj, Adam C.; Campos-Martin, Rafael; Grenier-Boley, Benjamin; Andrade, Victor; Holmans, Peter A.; Boland, Anne; Damotte, Vincent; van der Lee, Sven J.; Costa, Marcos R.; Kuulasmaa, Teemu; Yang, Qiong; de Rojas, Itziar; Bis, Joshua C.; Yaqub, Amber; Prokic, Ivana; Chapuis, Julien; Ahmad, Shahzad; Giedraitis, Vilmantas; Aarsland, Dag; Garcia-Gonzalez, Pablo; Abdelnour, Carla; Alarcón-Martín, Emilio; Alcolea, Daniel; Alegret, Montserrat; Alvarez, Ignacio; Álvarez, Victoria; Armstrong, Nicola J.; Tsolaki, Anthoula; Antúnez, Carmen; Appollonio, Ildebrando; Arcaro, Marina; Archetti, Silvana; Pastor, Alfonso Arias; Arosio, Beatrice; Athanasiu, Lavinia; Bailly, Henri; Banaj, Nerisa; Baquero, Miquel; Barral, Sandra; Beiser, Alexa; Pastor, Ana Belén; Below, Jennifer E.; Benchek, Penelope; Benussi, Luisa; Berr, Claudine; Besse, Céline; Bessi, Valentina; Binetti, Giuliano; Bizarro, Alessandra; Blesa, Rafael; Boada, Mercè; Boerwinkle, Eric; Borroni, Barbara; Boschi, Silvia; Bossù, Paola; Bråthen, Geir; Bressler, Jan; Bresner, Catherine; Brodaty, Henry; Brookes, Keeley J.; Brusco, Luis Ignacio; Buiza-Rueda, Dolores; Bûrger, Katharina; Burholt, Vanessa; Bush, William S.; Calero, Miguel; Cantwell, Laura B.; Chene, Geneviève; Chung, Jaeyoon; Cuccaro, Michael L.; Carracedo, Ángel; Cecchetti, Roberta; Cervera-Carles, Laura; Charbonnier, Camille; Chen, Hung-Hsin; Chillotti, Caterina; Ciccone, Simona; Claassen, Jurgen A H R; Clark, Christopher; Conti, Elisa; Corma-Gómez, Anaïs; Costantini, Emanuele; Custodero, Carlo; Daian, Delphine; Dalmasso, Maria Carolina; Daniele, Antonio; Dardiotis, Efthimios; Dartigues, Jean-François; de Deyn, Peter Paul; de Paiva Lopes, Katia; de Witte, Lot D.; Debette, Stéphanie; Deckert, Jürgen; Del Ser, Teodoro; Denning, Nicola; DeStefano, Anita; Dichgans, Martin; Diehl-Schmid, Janine; Diez-Fairen, Mónica; Rossi, Paolo Dionigi; Djurovic, Srdjan; Duron, Emmanuelle; Düzel, Emrah; Dufouil, Carole; Eiriksdottir, Gudny; Engelborghs, Sebastiaan; Escott-Price, Valentina; Espinosa, Ana; Ewers, Michael; Faber, Kelley M.; Fabrizio, Tagliavini; Nielsen, Sune Fallgaard; Fardo, David W.; Farotti, Lucia; Fenoglio, Chiara; Fernández-Fuertes, Marta; Ferrari, Raffaele; Ferreira, Catarina B.; Ferri, Evelyn; Fin, Bertrand; Fischer, Peter; Fladby, Tormod; Fließbach, Klaus; Fongang, Bernard; Fornage, Myriam; Fortea, Juan; Foroud, Tatiana M.; Fostinelli, Silvia; Fox, Nick C.; Franco-Macías, Emlio; Bullido, María J; Frank-García, Ana; Froelich, Lutz; Fulton-Howard, Brian; Galimberti, Daniela; García-Alberca, Jose Maria; García-González, Pablo; Garcia-Madrona, Sebastian; Garcia-Ribas, Guillermo; Ghidoni, Roberta; Giegling, Ina; Giorgio, Giaccone; Goate, Alison M.; Goldhardt, Oliver; Gomez-Fonseca, Duber; González-Pérez, Antonio; Graff, Caroline; Grande, Giulia; Green, Emma; Grimmer, Timo; Grünblatt, Edna; Grunin, Michelle; Gudnason, Vilmundur; Guetta-Baranes, Tamar; Haapasalo, Annakaisa; Hadjigeorgiou, Georgios; Haines, Jonathan L.; Hamilton-Nelson, Kara L.; Hampel, Harald; Hanon, Olivier; Hardy, John; Hartmann, Annette M.; Hausner, Lucrezia; Harwood, Janet; Heilmann-Heimbach, Stefanie; Helisalmi, Seppo; Heneka, Michael T.; Hernández, Isabel; Herrmann, Martin J.; Hoffmann, Per; Holmes, Clive; Holstege, Henne; Vilas, Raquel Huerto; Hulsman, Marc; Humphrey, Jack; Biessels, Geert Jan; Jian, Xueqiu; Johansson, Charlotte; Jun, Gyungah R.; Kastumata, Yuriko; Kauwe, John; Kehoe, Patrick G.; Kilander, Lena; Ståhlbom, Anne Kinhult; Kivipelto, Miia; Koivisto, Anne; Kornhuber, Johannes; Kosmidis, Mary H.; Kukull, Walter A.; Kuksa, Pavel P.; Kunkle, Brian W.; Kuzma, Amanda B.; Lage, Carmen; Laukka, Erika J.; Launer, Lenore; Lauria, Alessandra; Lee, Chien-Yueh; Lehtisalo, Jenni; Lerch, Ondrej; Lleó, Alberto; Longstreth, William; Lopez, Oscar; de Munain, Adolfo Lopez; Love, Seth; Löwemark, Malin; Luckcuck, Lauren; Lunetta, Kathryn L.; Ma, Yiyi; Macías, Juan; MacLeod, Catherine A.; Maier, Wolfgang; Mangialasche, Francesca; Spallazzi, Marco; Marquié, Marta; Marshall, Rachel; Martin, Eden R.; Montes, Angel Martín; Rodríguez, Carmen Martínez; Masullo, Carlo; Mayeux, Richard; Mead, Simon; Mecocci, Patrizia; Medina, Miguel; Meggy, Alun; Mehrabian, Shima; Mendoza, Silvia; Menéndez-González, Manuel; Mir, Pablo; Moebus, Susanne; Mol, Merel; Molina-Porcel, Laura; Montrreal, Laura; Morelli, Laura; Moreno, Fermin; Morgan, Kevin; Mosley, Thomas; Nöthen, Markus M.; Muchnik, Carolina; Mukherjee, Shubhabrata; Nacmias, Benedetta; Ngandu, Tiia; Nicolas, Gael; Nordestgaard, Børge G; Olaso, Robert; Orellana, Adelina; Orsini, Michela; Ortega, Gemma; Padovani, Alessandro; Paolo, Caffarra; Papenberg, Goran; Parnetti, Lucilla; Pasquier, Florence; Pastor, Pau; Peloso, Gina; Pérez-Cordón, Alba; Pérez-Tur, Jordi; Pericard, Pierre; Peters, Oliver; Pijnenburg, Yolande A L; Pineda, Juan A.; Piñol-Ripoll, Gerard; Pisanu, Claudia; Polak, Thomas; Popp, Julius; Posthuma, Danielle; Priller, Josef; Puerta, Raquel; Quenez, Olivier; Quintela, Inés; Thomassen, Jesper Qvist; Rábano, Alberto; Rainero, Innocenzo; Rajabli, Farid; Ramakers, Inez; Real, Luis M.; Reinders, Marcel J T; Reitz, Christiane; Reyes-Dumeyer, Dolly; Ridge, Perry; Riedel-Heller, Steffi; Riederer, Peter; Roberto, Natalia; Rodriguez-Rodriguez, Eloy; Rongve, Arvid; Allende, Irene Rosas; Rosende-Roca, Maitée; Royo, Jose Luis; Rubino, Elisa; Rujescu, Dan; Sáez, María Eugenia; Sakka, Paraskevi; Saltvedt, Ingvild; Sanabria, Ángela; Sánchez-Arjona, María Bernal; Sanchez-Garcia, Florentino; Juan, Pascual Sánchez; Sánchez-Valle, Raquel; Sando, Sigrid Botne; Sarnowski, Chloé; Satizabal, Claudia L.; Scamosci, Michela; Scarmeas, Nikolaos; Scarpini, Elio; Scheltens, Philip; Scherbaum, Norbert; Scherer, Martin; Schmid, Matthias; Schneider, Anja; Schott, Jonathan M.; Selbæk, Geir; Seripa, Davide; Serrano, Manuel; Sha, Jin; Shadrin, Alexey; Skrobot, Olivia; Slifer, Susan; Snijders, Gijsje J L; Soininen, Hilkka; Solfrizzi, Vincenzo; Solomon, Alina; Song, Yeunjoo; Sorbi, Sandro; Sotolongo-Grau, Oscar; Spalletta, Gianfranco; Spottke, Annika; Squassina, Alessio; Stordal, Eystein; Tartan, Juan Pablo; Tárraga, Lluís; Tesí, Niccolo; Thalamuthu, Anbupalam; Thomas, Tegos; Tosto, Giuseppe; Traykov, Latchezar; Tremolizzo, Lucio; Tybjærg-Hansen, Anne; Uitterlinden, Andre; Ullgren, Abbe; Ulstein, Ingun; Valero, Sergi; Valladares, Otto; Broeckhoven, Christine Van; Vance, Jeffery; Vardarajan, Badri N.; van der Lugt, Aad; Dongen, Jasper Van; van Rooij, Jeroen; van Swieten, John; Vandenberghe, Rik; Verhey, Frans; Vidal, Jean-Sébastien; Vogelgsang, Jonathan; Vyhnalek, Martin; Wagner, Michael; Wallon, David; Wang, Li-San; Wang, Ruiqi; Weinhold, Leonie; Wiltfang, Jens; Windle, Gill; Woods, Bob; Yannakoulia, Mary; Zare, Habil; Zhao, Yi; Zhang, Xiaoling; Zhu, Congcong; Zulaica, Miren; Farrer, Lindsay A.; Psaty, Bruce M.; Ghanbari, Mohsen; Raj, Towfique; Sachdev, Perminder; Mather, Karen; Jessen, Frank; Ikram, M Arfan; de Mendonça, Alexandre; Hort, Jakub; Tsolaki, Magda; Pericak-Vance, Margaret A.; Amouyel, Philippe; Williams, Julie; Frikke-Schmidt, Ruth; Clarimon, Jordi; Deleuze, Jean-François; Rossi, Giacomina; Seshadri, Sudha; Andreassen, Ole; Ingelsson, Martin; Hiltunen, Mikko; Sleegers, Kristel; Schellenberg, Gerard D.; van Duijn, Cornelia M.; Sims, Rebecca; van der Flier, Wiesje M.; Ruiz, Agustín; Ramirez, Alfredo; Lambert, Jean-Charles (Journal article; Peer reviewed, 2022)
      Characterization of the genetic landscape of Alzheimer’s disease (AD) and related dementias (ADD) provides a unique opportunity for a better understanding of the associated pathophysiological processes. We performed a ...
    • Vitamin D levels, brain volume, and genetic architecture in patients with psychosis 

      Berg, Akiah Ottesen; Jørgensen, Kjetil Nordbø; Nerhus, Mari; Athanasiu, Lavinia; Popejoy, Alice; Bettella, Francesco; Norbom, Linn Christin Bonaventure; Gurholt, Tiril Pedersen; Dahl, Sandra Rinne; Andreassen, Ole Andreas; Djurovic, Srdjan; Agartz, Ingrid; Melle, Ingrid (Peer reviewed; Journal article, 2018-08-24)
      Background: Lower vitamin D levels are found in people with schizophrenia and depressive disorders, and also associated with neuroimaging abnormalities such as reduced brain volume in both animals and humans. Reduced whole ...