Blar i Bergen Open Research Archive på forfatter "Steen, Vidar Martin"
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Evaluation of the Rosa Chatbot Providing Genetic Information to Patients at Risk of Hereditary Breast and Ovarian Cancer: Qualitative Interview Study
Siglen, Elen; Vetti, Hildegunn Høberg; Augestad, Mirjam Tonheim; Steen, Vidar Martin; Lunde, Åshild; Bjorvatn, Cathrine (Journal article; Peer reviewed, 2023)Background: Genetic testing has become an integrated part of health care for patients with breast or ovarian cancer, and the increasing demand for genetic testing is accompanied by an increasing need for easy access to ... -
Exploring lithium's transcriptional mechanisms of action in bipolar disorder: a multi-step study
Akkouh, Ibrahim; Skrede, Silje; Holmgren, Asbjørn; Ersland, Kari Merete; Hansson, Lars Johan Axel; Bahrami, Shahram; Andreassen, Ole Andreas; Steen, Vidar Martin; Djurovic, Srdjan; Hughes, Timothy (Peer reviewed; Journal article, 2019)Lithium has been the first-line treatment for bipolar disorder (BD) for more than six decades. Although the molecular effects of lithium have been studied extensively and gene expression changes are generally believed to ... -
Exploring the Wnt signaling pathway in schizophrenia and bipolar disorder
Hoseth, Eva Zsuzsanna; Krull, Florian; Dieset, Ingrid; Mørch, Ragni Helene; Hope, Sigrun; Gardsjord, Erlend Strand; Steen, Nils Eiel; Melle, Ingrid; Brattbakk, Hans-Richard; Steen, Vidar Martin; Aukrust, Pål; Djurovic, Srdjan; Andreassen, Ole Andreas; Ueland, Thor (Peer reviewed; Journal article, 2018)The Wnt signaling pathway plays a crucial role in neurodevelopment and in regulating the function and structure of the adult nervous system. Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental disorders with ... -
Expression of TCN1 in Blood is Negatively Associated with Verbal Declarative Memory Performance
Akkouh, Ibrahim; Ueland, Torill; Andreassen, Ole Andreas; Brattbakk, Hans-Richard; Steen, Vidar Martin; Hughes, Timothy; Djurovic, Srdjan (Peer reviewed; Journal article, 2018-08-23)Memory is indispensable for normal cognitive functioning, and the ability to store and retrieve information is central to mental health and disease. The molecular mechanisms underlying complex memory functions are largely ... -
Gene expression in the rat brain: High similarity but unique differences between frontomedial-, temporal- and occipital cortex
Stansberg, Christine; Ersland, Kari Merete; Valk, Paul van der; Steen, Vidar Martin (Peer reviewed; Journal article, 2011-01-26)Background: The six-layered neocortex of the mammalian brain may appear largely homologous, but is in reality a modular structure of anatomically and functionally distinct areas. However, global gene expression seems to ... -
Gene expression profiles in rat brain disclose CNS signature genes and regional patterns of functional specialisation
Stansberg, Christine; Vik-Mo, Audun O.; Holdhus, Rita; Breilid, Harald; Srebro, Boleslaw; Petersen, Kjell; Jørgensen, Hugo A.; Jonassen, Inge; Steen, Vidar Martin (Peer reviewed; Journal article, 2007-04-04)Background: The mammalian brain is divided into distinct regions with structural and neurophysiological differences. As a result, gene expression is likely to vary between regions in relation to their cellular composition ... -
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 ... -
The genetic architecture of the human cerebral cortex
Grasby, Katrina L.; Jahanshad, Neda; Painter, Jodie N; Colodro-Conde, Lucía; Bralten, Janita; Agartz, Ingrid; Alnæs, Dag; Gurholt, Tiril Pedersen; Kaufmann, Tobias; Sønderby, Ida Elken; van der Meer, Dennis; Westlye, Lars Tjelta; Wolfers, Thomas; Djurovic, Srdjan; Le Hellard, Stephanie; Andreassen, Ole Andreas; Jönsson, Erik Gunnar; Steen, Vidar Martin; Medland, Sarah E. (Journal article; Peer reviewed, 2020)INTRODUCTION The cerebral cortex underlies our complex cognitive capabilities. Variations in human cortical surface area and thickness are associated with neurological, psychological, and behavioral traits and can be ... -
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 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 ... -
Genetic correlations and genome-wide associations of cortical structure in general population samples of 22,824 adults
Hofer, Edith; Roshchupkin, Gennady V.; Adams, Hieab H H; Knol, Maria J.; Lin, Honghuang; Li, Shuo; Zare, Habil; Ahmad, Shahzad; Armstrong, Nicola J.; Satizabal, Claudia L.; Panizzon, Matthew S.; Andreassen, Ole Andreas; Dale, Anders M.; Logue, Mark; Grasby, Katrina L.; Van Duijn, Cornelia M.; Grabe, Hans J.; Longstreth, William T.; Fornage, Myriam; Paus, Tomas; Debette, Stephanie; Ikram, M. Arfan; Schmidt, Helena; Schmidt, Reinhold; Seshadri, Sudha; Agartz, Ingrid; Alhusaini, Saud; Almeida, Marcio A.A.; Alnæs, Dag; Amlien, Inge Kasbohm; Doan, Nhat Trung; Gurholt, Tiril Pedersen; Kaufmann, Tobias; Richard, Geneviève; Sønderby, Ida Elken; van der Meer, Dennis; Wang, Yunpeng; Westlye, Lars Tjelta; Brandt, Christine Lycke; Djurovic, Srdjan; Kolskår, Knut-Kristian; Melle, Ingrid; Nordvik, Jan Egil; Steen, Vidar Martin; Espeseth, Thomas; Håberg, Asta; Wright, Margaret J.; Zhou, Juan; Stein, Jason L.; Thompson, Paul M.; Medland, Sarah E. (Journal article; Peer reviewed, 2020)Cortical thickness, surface area and volumes vary with age and cognitive function, and in neurological and psychiatric diseases. Here we report heritability, genetic correlations and genome-wide associations of these ... -
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 meta-analysis reveals novel loci and genetic correlates for general cognitive function: a report form the COGENT consortium
Trampush, Joey W.; Yang, M.L.Z.; Yu, Jin; Knowles, Emma; Davies, Gail; Liewald, David C.M.; Starr, John M.; Djurovic, Srdjan; Melle, Ingrid; Sundet, Kjetil Søren; Christoforou, Andrea; Reinvang, Ivar; DeRosse, Pamela; Lundervold, Astri; Steen, Vidar Martin; Espeseth, Thomas; Räikkönen, Katri; Widén, Elisabeth; Palotie, Aarno; Eriksson, Johan Gunnar; Giegling, Ina; Konte, Bettina; Roussos, Panos; Giakoumaki, Stella; Burdick, Katherine E.; Payton, Antony; Ollier, William E.R.; Horan, Michael Arthur; Chiba-Falek, Ornit; Attix, Deborah K.; Need, Anna C.; Cirulli, Elizabeth Trilby; Voineskos, Aristotle N.; Stefanis, Nikos C.; Avramopoulos, Dimitrios A.; Hatzimanolis, Alex; Arking, Dan E.; Smyrnis, Nikolaos; Bilder, Robert Martin; Freimer, Nelson A.; Cannon, Tyrone D.; London, Edyth; Poldrack, Russell Alan; Sabb, Fred W.; Congdon, Eliza L.; Conley, Emily Drabant; Scult, Matthew A.; Dickinson, Dwight; Straub, Richard E.; Donohoe, Gary J.; Morris, Derek W.; Corvin, Aiden; Gill, Michael; Hariri, Ahmad; Weinberger, Daniel R.; Pendleton, Neil; Bitsios, Panos; Rujescu, Dan; Lahti, Jari; Le Hellard, Stephanie; Keller, Matthew C.; Andreassen, Ole Andreas; Deary, Ian John; Glahn, David C.; Malhotra, Anil K.; Lencz, Todd (Peer reviewed; Journal article, 2017-01-17)The complex nature of human cognition has resulted in cognitive genomics lagging behind many other fields in terms of gene discovery using genome-wide association study (GWAS) methods. In an attempt to overcome these ... -
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 ... -
Host blood-based biosignatures for subclinical TB and incipient TB: A prospective study of adult TB household contacts in Southern India
Sivakumaran, Dhanasekaran; Jenum, Synne; Srivastava, Aashish; Steen, Vidar Martin; Vaz, Mario; Doherty, Timothy Mark; Ritz, Christian; Grewal, Harleen (Journal article; Peer reviewed, 2023-01-11)A large proportion of the global tuberculosis (TB) burden is asymptomatic and not detectable by symptom-based screening, driving the TB epidemic through continued M. tuberculosis transmission. Currently, no validated tools ... -
Human cognitive ability is influenced by genetic variation in components of postsynaptic signalling complexes assembled by NMDA receptors and MAGUK proteins
Hill, Wayne David; Davies, Gail; Van De Lagemaat, Louie N.; Christoforou, Andrea; Marioni, Riccardo R.; Duarte Fernandes, Carla; Liewald, David Cherry; Croning, Mike D.R.; Payton, Anthony; Craig, Leone C.A.; Whalley, Lawrence J.; Horan, Michael; Ollier, William E.R.; Hansell, Narelle K.; Wright, Margaret J.; Martin, Nicholas G.; Montgomery, Grant W.; Steen, Vidar Martin; Le Hellard, Stephanie; Espeseth, Thomas; Lundervold, Astri; Reinvang, Ivar; Starr, John M.; Pendleton, Neil; Grant, Seth G.N.; Bates, Timothy C.; Deary, Ian John (Peer reviewed; Journal article, 2014)Differences in general cognitive ability (intelligence) account for approximately half of the variation in any large battery of cognitive tests and are predictive of important life events including health. Genome-wide ... -
Hyperoxia retards growth and induces apoptosis and loss of glands and blood vessels in DMBA-induced rat mammary tumors
Raa, Anette; Stansberg, Christine; Steen, Vidar Martin; Bjerkvig, Rolf; Reed, Rolf K.; Stuhr, Linda Elin Birkhaug (Journal article, 2007-01-30)This study investigated the effects of hyperoxic treatment on growth, angiogenesis, apoptosis, general morphology and gene expression in DMBA-induced rat mammary tumors. Methods: One group of animals was exposed to normobaric ... -
Identification of pleiotropy at the gene level between psychiatric disorders and related traits
Polushina, Tatiana; Banerjee, Niladri; Giddaluru, Sudheer; Bettella, Francesco; Espeseth, Thomas; Lundervold, Astri J.; Djurovic, Srdjan; Cichon, Sven; Hoffmann, Per; Nöthen, Markus M.; Steen, Vidar Martin; Andreassen, Ole A.; Le Hellard, Stéphanie (Journal article; Peer reviewed, 2021)Major mental disorders are highly prevalent and make a substantial contribution to the global disease burden. It is known that mental disorders share clinical characteristics, and genome-wide association studies (GWASs) ... -
Identifying nootropic drug targets via large-scale cognitive GWAS and transcriptomics
Lam, Max; Chen, Chia-Yen; Ge, Tian; Xia, Yan; Hill, David W.; Trampush, Joey W.; Yu, Jin; Knowles, Emma; Davies, Gail; Stahl, Eli A.; Huckins, Laura; Liewald, David C.; Djurovic, Srdjan; Melle, Ingrid; Christoforou, Andrea; Reinvang, Ivar; DeRosse, Pamela; Lundervold, Astri J.; Steen, Vidar Martin; Espeseth, Thomas; Räikkönen, Katri; Widen, Elisabeth; Palotie, Aarno; Eriksson, Johan G.; Giegling, Ina; Konte, Bettina; Hartmann, Annette M.; Roussos, Panos; Giakoumaki, Stella; Burdick, Katherine E.; Payton, Antony; Ollier, William; Chiba-Falek, Ornit; Koltai, Deborah; Need, AC; Cirulli, Elizabeth T.; Voineskos, Aristotle N.; Stefanis, Nikos C.; Avramopoulos, Dimitrios; Hatzimanolis, Alex; Smyrnis, Nikolaos; Bilder, Robert M.; Freimer, Nelson B.; Cannon, Tyrone D.; London, Edythe; Poldrack, Russell A.; Sabb, Fred W.; Congdon, Eliza; Conley, Emily Drabant; Scult, Matthew A.; Dickinson, Dwight; Straub, Richard E.; Donohoe, Gary; Morris, Derek; Corvin, Aiden; Gill, Michael; Hariri, Ahmad; Weinberger, Daniel R.; Pendleton, Neil; Bitsios, Panos; Rujescu, Dan; Lahti, Jari; Hellard, Stephanie Francoise Claire Le; Keller, Matthew C.; Andreassen, Ole; Deary, Ian J.; Glahn, David C.; Huang, Hailiang; Liu, Chunyu; Malhotra, Anil K.; Lencz, Todd (Journal article; Peer reviewed, 2021)Broad-based cognitive deficits are an enduring and disabling symptom for many patients with severe mental illness, and these impairments are inadequately addressed by current medications. While novel drug targets for ... -
Improvement in verbal learning over the first year of antipsychotic treatment is associated with serum HDL levels in a cohort of first episode psychosis patients
Gjerde, Priyanthi Borgen; Simonsen, Carmen Elisabeth; Lagerberg, Trine Vik; Steen, Nils Eiel; Ueland, Torill; Andreassen, Ole Andreas; Steen, Vidar Martin; Melle, Ingrid (Peer reviewed; Journal article, 2019-04-27)To investigate whether changes in serum lipids are associated with cognitive performance in first episode psychosis (FEP) patients during their first year of antipsychotic drug treatment. One hundred and thirty-two ...