• Common variants in the ARC gene are not associated with cognitive abilities 

      Myrum, Craig; Giddaluru, Sudheer; Jacobsen, Kaya Kvarme; Espeseth, Thomas; Nyberg, Lars; Lundervold, Astri; Haavik, Jan; Nilsson, Lars-Göran; Reinvang, Ivar; Steen, Vidar Martin; Johansson, Stefan; Wibrand, Karin; Le Hellard, Stephanie; Bramham, Clive R. (Peer reviewed; Journal article, 2015-09-03)
      Introduction: The Activity-Regulated Cytoskeleton-associated (ARC) gene encodes a protein that is critical for the consolidation of synaptic plasticity and long-term memory formation. Given ARC's key role in synaptic ...
    • DCLK1 Variants Are Associated across Schizophrenia and Attention Deficit/Hyperactivity Disorder 

      Håvik, Bjarte; Fernandes, Carla P. D.; Christoforou, Andrea; Ersland, Kari Merete; Giddaluru, Sudheer; Cichon, Sven; Steen, Vidar Martin; Hellard, Stéphanie Le; Johansson, Stefan; Bramham, Clive R.; Haavik, Jan (Peer reviewed; Journal article, 2012-04-23)
      Doublecortin and calmodulin like kinase 1 (DCLK1) is implicated in synaptic plasticity and neurodevelopment. Genetic variants in DCLK1 are associated with cognitive traits, specifically verbal memory and general cognition. ...
    • The ENIGMA Consortium: large-scale collaborative analyses of neuroimaging and genetic data 

      Christoforou, Andrea; Le Hellard, Stephanie; Giddaluru, Sudheer; Steen, Vidar Martin; The ENIGMA Consortium (Peer reviewed; Journal article, 2014-06)
      The Enhancing NeuroImaging Genetics through Meta-Analysis (ENIGMA) Consortium is a collaborative network of researchers working together on a range of large-scale studies that integrate data from 70 institutions worldwide. ...
    • Gene-Based Analysis of Regionally Enriched Cortical Genes in GWAS Data Sets of Cognitive Traits and Psychiatric Disorders 

      Ersland, Kari Merete; Christoforou, Andrea; Stansberg, Christine; Espeseth, Thomas; Mattheisen, Manuel; Mattingsdal, Morten; Hardarson, Gudmundur A.; Hansen, Thomas; Fernandes, Carla P. D.; Giddaluru, Sudheer; Breuer, René; Strohmaier, Jana; Djurovic, Srdjan; Nöthen, Markus M.; Rietschel, Marcella; Lundervold, Astri Johansen; Werge, Thomas; Cichon, Sven; Andreassen, Ole Andreas; Reinvang, Ivar; Steen, Vidar Martin; Le Hellard, Stephanie (Peer reviewed; Journal article, 2012-02-22)
      Background: Despite its estimated high heritability, the genetic architecture leading to differences in cognitive performance remains poorly understood. Different cortical regions play important roles in normal cognitive ...
    • Genetic contributions to variation in general cognitive function: a meta-analysis of genome-wide association studies in the CHARGE consortium (N=53 949) 

      Davies, Gail; Armstrong, N; Bis, JC; Bressler, J; Chouraki, V; Giddaluru, Sudheer; Hofer, E; Ibrahim-Verbaas, CA; Kirin, M; Lahti, J; Van Der Lee, SJ; Le Hellard, Stephanie; Liu, T; Marioni, RE; Oldmeadow, C; Postmus, I; Smith, AV; Smith, JA; Thalamuthu, A; Thomson, R; Vitart, V; Wang, J; Yu, L; Zgaga, L; Zhao, W; Boxall, R; Harris, SE; Hill, WD; Liewald, DC; Luciano, M; Adams, H; Ames, D; Amin, N; Amouyel, P; Assareh, AA; Au, R; Becker, JT; Beiser, A; Berr, C; Bertram, L; Boerwinkle, E; Buckley, BM; Campbell, H; Corley, J; De Jager, PL; Dufouil, C; Eriksson, JG; Espeseth, Thomas; Faul, JD; Ford, I; Scotland, Generation; Gottesman, RF; Griswold, ME; Gudnason, V; Harris, TB; Heiss, G; Hofman, A; Holliday, EG; Huffman, J; Kardia, SLR; Kochan, N; Knopman, DS; Kwok, JB; Lambert, JC; Lee, T; Li, G; Li, SC; Loitfelder, M; Lopez, OL; Lundervold, Astri; Lundqvist, A; Mather, KA; Mirza, SS; Nyberg, L; Oostra, BA; Palotie, A; Papenberg, G; Pattie, A; Petrovic, K; Polasek, O; Psaty, BM; Redmond, P; Reppermund, S; Rotter, JI; Schmidt, H; Schuur, M; Schofield, PW; Scott, RJ; Steen, Vidar Martin; Stott, DJ; Van Swieten, JC; Taylor, KD; Trollor, J; Trompet, S; Uitterlinden, AG; Weinstein, G; Widen, E; Windham, BG; Jukema, JW; Wright, AF; Wright, MJ; Yang, Q; Amieva, H; Attia, JR; Bennett, DA; Brodaty, H; De Craen, AJM; Hayward, C; Ikram, MA; Lindenberger, U; Nilsson, LG; Porteous, DJ; Räikkönen, K; Rudan, I; Sachdev, PS; Schmidt, R; Schofield, PR; Srikanth, V; Starr, JM; Turner, ST; Weir, DR; Wilson, JF; Van Duijn, C; Launer, L; Fitzpatrick, AL; Seshadri, S; Mosley, TH; Deary, IJ; Reinvang, Ivar (Peer reviewed; Journal article, 2015)
      General cognitive function is substantially heritable across the human life course from adolescence to old age. We investigated the genetic contribution to variation in this important, health- and well-being-related trait ...
    • Genetic variation in 117 myelination-related genes in schizophrenia: Replication of association to lipid biosynthesis genes 

      Stokowy, Tomasz; Polushina, Tatiana; Sønderby, Ida Elken; Karlsson, Robert; Giddaluru, Sudheer; Le Hellard, Stephanie; Bergen, Sarah E; Sullivan, Patrick F; Andreassen, Ole Andreas; Djurovic, Srdjan; Hultman, Christina M.; Steen, Vidar Martin (Peer reviewed; Journal article, 2018-05-02)
      Schizophrenia is a serious psychotic disorder with high heritability. Several common genetic variants, rare copy number variants and ultra-rare gene-disrupting mutations have been linked to disease susceptibility, but there ...
    • GWAS-based pathway analysis differentiates between fluid and crystallized intelligence 

      Christoforou, Andrea; Espeseth, Thomas; Davis, G.; Fernandes, Carla P.D.; Giddaluru, Sudheer; Mattheisen, Manuel; Tenesa, A.; Harris, Sarah E.; Liewald, David C; Payton, Anthony; Ollier, W; Horan, M.; Pendleton, Neil; Haggarty, Paul; Djurovic, Srdjan; Herms, Stefan; Hoffman, P.; Cichon, Sven; Starr, John M; Lundervold, Astri; Reinvang, Ivar; Steen, Vidar Martin; Deary, Ian J; Le Hellard, Stephanie (Peer reviewed; Journal article, 2014-09)
      Cognitive abilities vary among people. About 40–50% of this variability is due to general intelligence (g), which reflects the positive correlation among individuals' scores on diverse cognitive ability tests. g is positively ...
    • 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) ...
    • Recently evolved human-specific methylated regions are enriched in schizophrenia signals 

      Banerjee, Niladri; Polushina, Tatiana; Bettella, Francesco; Giddaluru, Sudheer; Steen, Vidar Martin; Andreassen, Ole Andreas; Le Hellard, Stephanie (Peer reviewed; Journal article, 2018)
      Background: One explanation for the persistence of schizophrenia despite the reduced fertility of patients is that it is a by-product of recent human evolution. This hypothesis is supported by evidence suggesting that ...
    • Study of 300,486 individuals identifies 148 independent genetic loci influencing general cognitive function 

      Davies, Gail; Lam, Max; Harris, Sarah E.; Trampush, Joey W.; Luciano, Michelle; Hill, W. David; Hagenaars, Saskia P.; Ritchie, Stuart J.; Marioni, Riccardo E.; Fawns-Ritchie, Chloe; Liewald, David C.M.; Okely, Judith A.; Ahola-Olli, Ari V.; Barnes, Catriona L.K.; Bertram, Lars; Bis, Joshua C.; Burdick, Katherine E.; Christoforou, Andrea; Derosse, Pamela; Djurovic, Srdjan; Espeseth, Thomas; Giakoumaki, Stella; Giddaluru, Sudheer; Gustavson, Daniel E.; Hayward, Caroline; Hofer, Edith; Ikram, M. Arfan; Karlsson, Robert; Knowles, Emma; Lahti, Jari; Leber, Markus; Li, Shuo; Mather, Karen A.; Melle, Ingrid; Morris, Derek; Oldmeadow, Christopher; Palviainen, Teemu; Payton, Antony; Pazoki, Raha; Petrovic, Katja; Reynolds, Chandra A.; Sargurupremraj, Muralidharan; Scholz, Markus; Smith, Jennifer A.; Smith, Albert V.; Terzikhan, Natalie; Thalamuthu, Anbupalam; Trompet, Stella; van der Lee, Sven J.; Ware, Erin B.; Windham, B. Gwen; Wright, Margaret J.; Yang, Jingyun; Yu, Jin; Ames, David; Amin, Najaf; Amouyel, Philippe; Andreassen, Ole Andreas; Armstrong, Nicola J.; Assareh, Amelia A; Attia, John R.; Attix, Deborah; Avramopoulos, Dimitrios; Bennett, David A.; Böhmer, Anne C.; Boyle, Patricia A.; Brodaty, Henry; Campbell, Harry; Cannon, Tyrone D.; Cirulli, Elizabeth T.; Congdon, Eliza; Conley, Emily Drabant; Corley, Janie; Cox, Simon R.; Dale, Anders; Dehghan, Abbas; Dick, Danielle; Dickinson, Dwight; Eriksson, Johan G.; Evangelou, Evangelos; Faul, Jessica D.; Ford, Ian; Freimer, Nelson A.; Gao, He; Giegling, Ina; Gillespie, Nathan A.; Gordon, Scott D.; Gottesman, Rebecca F.; Griswold, Michael E.; Gudnason, Vilmundur; Harris, Tamara B.; Hartmann, Annette M.; Hatzimanolis, Alex; Heiss, Gerardo; Holliday, Elizabeth G.; Joshi, Peter K.; Kähönen, Mika; Kardia, Sharon L.R.; Karlsson, Ida; Kleineidam, Luca; Knopman, David S.; Kochan, Nicole A.; Konte, Bettina; Kwok, John B.; Le Hellard, Stephanie; Lee, Teresa; Lehtimäki, Terho; Li, Shu-Chen; Liu, Tian; Koini, Marisa; London, Edythe; Longstreth, Will T.; Lopez, Oscar L.; Loukola, Anu; Luck, Tobias; Lundervold, Astri; Lundquist, Anders; Lyytikäinen, Leo-Pekka; Martin, Nicholas G.; Montgomery, Grant W.; Murray, Alison D.; Need, Anna C.; Noordam, Raymond; Nyberg, Lars; Ollier, William; Papenberg, Göran; Pattie, Alison; Polasek, Ozren; Poldrack, Russell A.; Psaty, Bruce M.; Reppermund, Simone; Riedel-Heller, Steffi G.; Rose, Richard J.; Rotter, Jerome I.; Roussos, Panos; Rovio, Suvi P.; Saba, Yasaman; Sabb, Fred W.; Sachdev, Perminder S.; Satizabal, Claudia L.; Schmid, Matthias; Scott, Rodney J.; Scult, Matthew A.; Simino, Jeannette; Slagboom, P. Eline; Smyrnis, Nikolaos; Soumaré, Aïcha; Stefanis, Nikos C.; Stott, David J.; Straub, Richard E.; Sundet, Kjetil Søren; Taylor, Adele M.; Taylor, Kent D.; Tzoulaki, Ioanna; Tzourio, Christophe; Uitterlinden, André; Vitart, Veronique; Voineskos, Aristotle N.; Kaprio, Jaakko; Wagner, Michael; Wagner, Holger; Weinhold, Leonie; Wen, K. Hoyan; Widén, Elisabeth; Yang, Qiong; Zhao, Wei; Adams, Hieab H.H.; Arking, Dan E.; Bilder, Robert M.; Bitsios, Panos; Boerwinkle, Eric; Chiba-Falek, Ornit; Corvin, Aiden; De Jager, Philip L.; Debette, Stéphanie; Donohoe, Gary; Elliott, Paul; Fitzpatrick, Annette L.; Gill, Michael; Glahn, David C.; Hägg, Sara; Hansell, Narelle K.; Hariri, Ahmad; Ikram, M. Kamran; Jukema, J. Wouter; Vuoksimaa, Eero; Keller, Matthew C.; Kremen, William S.; Launer, Lenore; Lindenberger, Ulman; Palotie, Aarno; Pedersen, Nancy L.; Pendleton, Neil; Porteous, David J.; Räikkönen, Katri; Raitakari, Olli T.; Ramirez, Alfredo; Reinvang, Ivar; Rudan, Igor; Rujescu, Dan; Schmidt, Reinhold; Schmidt, Helena; Schofield, Peter W.; Schofield, Peter R.; Starr, John M.; Steen, Vidar Martin; Trollor, Julian N.; Turner, Steven T.; Van Duijn, Cornelia M.; Villringer, Arno; Weinberger, Daniel R.; Weir, David R.; Wilson, James F.; Malhotra, Anil; McIntosh, Andrew M.; Gale, Catharine R.; Seshadri, Sudha; Mosley, Thomas H.; Bressler, Jan; Lencz, Todd; Deary, Ian J. (Peer reviewed; Journal article, 2018)
      General cognitive function is a prominent and relatively stable human trait that is associated with many important life outcomes. We combine cognitive and genetic data from the CHARGE and COGENT consortia, and UK Biobank ...