Nils Eiel Steen

Associate Professor - NORMENT part UiO
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Visiting address Oslo Universitetssykehus HF - Ullevål Avdeling for psykoseforskning Bygg 49 0424 OSLO
Postal address OUS, Postboks 4956 Nydalen 0424 OSLO
Other affiliations Department of Education (Student)

Publications

  • Aas, Monica; Elvsåshagen, Torbjørn; Westlye, Lars Tjelta; Kaufmann, Tobias; Athanasiu, Lavinia; Djurovic, Srdjan; Melle, Ingrid; van der Meer, Dennis; Martin-Ruiz, Carmen; Steen, Nils Eiel; Agartz, Ingrid & Andreassen, Ole Andreas (2019). Telomere length is associated with childhood trauma in patients with severe mental disorders. Translational psychiatry.  ISSN 2158-3188.  9 . doi: 10.1038/s41398-019-0432-7
  • Aas, Monica; Pizzagalli, Diego A.; Anderssen, Jannicke Fjæra; Reponen, Elina Johanna; Ueland, Torill; Melle, Ingrid; Agartz, Ingrid; Steen, Nils Eiel & Andreassen, Ole Andreas (2019). Elevated hair cortisol is associated with childhood maltreatment and cognitive impairment in schizophrenia and in bipolar disorders. Schizophrenia Research.  ISSN 0920-9964. . doi: 10.1016/j.schres.2019.01.011
  • Gjerde, Priyanthi Borgen; Simonsen, Carmen Elisabeth; Lagerberg, Trine Vik; Steen, Nils Eiel; Ueland, Torill; Andreassen, Ole Andreas; Steen, Vidar Martin & Melle, Ingrid (2019). 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. European Archives of Psychiatry and Clinical Neuroscience.  ISSN 0940-1334.  s 1- 10 . doi: 10.1007/s00406-019-01017-w
  • Gohar, Sherif Mostafa Mohamed Ahmed; Dieset, Ingrid; Steen, Nils Eiel; Mørch, Ragni Helene; Vedal, Trude Seselie Jahr; Reponen, Elina Johanna; Steen, Vidar Martin; Andreassen, Ole Andreas & Melle, Ingrid (2019). Association between leptin levels and severity of suicidal behaviour in schizophrenia spectrum disorders. Acta Psychiatrica Scandinavica.  ISSN 0001-690X.  139(5), s 464- 471 . doi: 10.1111/acps.13019
  • 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 M.; Stefánsson, Kári; Djurovic, Srdjan & Andreassen, Ole Andreas (2019). Identification of genetic overlap and novel risk loci for attention-deficit/hyperactivity disorder and bipolar disorder. Molecular Psychiatry.  ISSN 1359-4184.  s 1- 11 . doi: 10.1038/s41380-019-0613-z Show summary
  • O`Connell, Kevin; Shadrin, Alexey A.; Smeland, Olav Bjerkehagen; Bahrami, Shahram; Frei, Oleksandr; Bettella, Francesco; Krull, Florian; Fan, Chun C.; Askeland, Ragna Bugge; Knudsen, Gun Peggy Strømstad; Halmøy, Anne; Steen, Nils Eiel; Ueland, Torill; Walters, G. Bragi; Davíðsdóttir, Katrín; Haraldsdóttir, Gyda S.; Guðmundsson, Ólafur; Stefansson, Hreinn; Reichborn-Kjennerud, Ted; Haavik, Jan; Dale, Anders M.; Stefánsson, Kári; Djurovic, Srdjan & Andreassen, Ole Andreas (2019). Identification of genetic loci shared between ADHD, intelligence and educational attainment. Biological Psychiatry.  ISSN 0006-3223. . doi: 10.1016/j.biopsych.2019.11.015
  • Ringen, Petter Andreas; Reponen, Elina Johanna; Vedal, Trude Seselie Jahr; Andreassen, Ole Andreas; Steen, Nils Eiel & Melle, Ingrid (2019). Predictors for antipsychotic dosage change in the first year of treatment in schizophrenia spectrum and bipolar disorders. Frontiers in Psychiatry.  ISSN 1664-0640.  10:649, s 1- 8 . doi: 10.3389/fpsyt.2019.00649
  • Rødevand, Linn; Steen, Nils Eiel; Elvsåshagen, Torbjørn; Quintana, Daniel; Reponen, Elina Johanna; Mørch, Ragni Helene; Lunding, Synve Hoffart; Vedal, Trude Seselie Jahr; Dieset, Ingrid; Melle, Ingrid; Lagerberg, Trine Vik & Andreassen, Ole Andreas (2019). Cardiovascular risk remains high in schizophrenia with modest improvements in bipolar disorder during past decade. Acta Psychiatrica Scandinavica.  ISSN 0001-690X.  139(4), s 348- 360 . doi: 10.1111/acps.13008 Show summary
  • Scott, Jan; Hidalgo-Mazzei, Diego; Strawbridge, Rebecca; Young, Allan; Resche-Rigon, Matthieu; Etain, Bruno; Andreassen, Ole Andreas; Bauer, Michael; Bennabi, Djamila; Blamire, Andrew M.; Boumezbeur, Fawzi; Brambilla, Paolo; Cattane, Nadia; Cattaneo, Annamaria; Chupin, Marie; Coello, Klara; Cointepas, Yann; Colom, Francesc; Cousins, David A.; Dubertret, Caroline; Duchesnay, Edouard; Ferro, Adele; Garcia-Estela, Aitana; Goikolea, Jose; Grigis, Antoine; Haffen, Emmanuel; Høegh, Margrethe Collier; Jakobsen, Petter; Kalman, Janos L.; Kessing, Lars V.; Klohn-Saghatolislam, Farah; Lagerberg, Trine Vik; Landén, Mikael; Lewitzka, Ute; Lutticke, Ashley; Mazer, Nicolas; Mazzelli, Monica; Mora, Cristina; Muller, Thorsten; Mur-Mila, Estanislao; Ødegaard, Ketil Joachim; Oltedal, Leif; Pålsson, Erik; Papadopoulos Orfanos, Dimitri; Papiol, Sergi; Perez-Sola, Victor; Reif, Andreas; Ritter, Philipp; Rossi, Roberto; Schulze, Thomas; Senner, Fanny; Smith, Fiona E.; Squarcina, Letizia; Steen, Nils Eiel; Thelwall, Pete E.; Varo, Cristina; Vieta, Eduard; Vinberg, Maj; Wessa, Michele; Westlye, Lars Tjelta & Bellivier, Frank (2019). Prospective cohort study of early biosignatures of response to lithium in bipolar-I-disorders: overview of the H2020-funded R-LiNK initiative. International journal of bipolar disorders.  ISSN 2194-7511.  7(1), s 1- 10 . doi: 10.1186/s40345-019-0156-x
  • 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 (2019). Genome-wide analysis reveals extensive genetic overlap between schizophrenia, bipolar disorder, and intelligence. Molecular Psychiatry.  ISSN 1359-4184.  s 1- 10 . doi: 10.1038/s41380-018-0332-x Full text in Research Archive.
  • Steen, Nils Eiel; Dieset, Ingrid; Hope, Sigrun; Vedal, Trude Seselie Jahr; Smeland, Olav Bjerkehagen; Matson, Wayne; Kaddurah-Daouk, Rima; Agartz, Ingrid; Melle, Ingrid; Djurovic, Srdjan; Jönsson, Erik Gunnar; Bogdanov, Mikhail & Andreassen, Ole Andreas (2019). Metabolic dysfunctions in the kynurenine pathway, noradrenergic and purine metabolism in schizophrenia and bipolar disorders. Psychological Medicine.  ISSN 0033-2917.  17(2) . doi: 10.1017/S0033291719000400
  • Vedal, Trude Seselie Jahr; Steen, Nils Eiel; Birkeland, Kåre I.; Dieset, Ingrid; Reponen, Elina Johanna; Anderssen, Jannicke Fjæra; Rødevand, Linn; Melle, Ingrid; Andreassen, Ole Andreas; Molden, Espen & Jönsson, Erik Gunnar (2019). Adipokine levels are associated with insulin resistance in antipsychotics users independently of BMI. Psychoneuroendocrinology.  ISSN 0306-4530.  103, s 87- 95 . doi: 10.1016/j.psyneuen.2019.01.001 Full text in Research Archive.
  • Aas, Monica; Dieset, Ingrid; Mørch, Ragni Helene; Steen, Nils Eiel; Hope, Sigrun; Reponen, Elina Johanna; Anderssen, Jannicke Fjæra; Ueland, Thor; Aukrust, Pål; Melle, Ingrid; Agartz, Ingrid & Andreassen, Ole Andreas (2018). Reduced brain-derived neurotrophic factor is associated with childhood trauma experiences and number of depressive episodes in severe mental disorders. Schizophrenia Research.  ISSN 0920-9964. . doi: 10.1016/j.schres.2018.08.007 Full text in Research Archive.
  • Aas, Monica; Djurovic, Srdjan; Ueland, Torill; Mørch, Ragni Helene; Anderssen, Jannicke Fjæra; Reponen, Elina Johanna; Cattaneo, Annamaria; Steen, Nils Eiel; Agartz, Ingrid; Melle, Ingrid & Andreassen, Ole Andreas (2018). The relationship between physical activity, clinical and cognitive characteristics and BDNF mRNA levels in patients with severe mental disorders. World Journal of Biological Psychiatry.  ISSN 1562-2975. . doi: 10.1080/15622975.2018.1557345
  • Fjukstad, Katrine Kveli; Engum, Anne; Lydersen, Stian; Dieset, Ingrid; Steen, Nils Eiel; Andreassen, Ole Andreas & Spigset, Olav (2018). Metabolic risk factors in schizophrenia and bipolar disorder: The effect of comedication with selective serotonin reuptake inhibitors and antipsychotics. European psychiatry.  ISSN 0924-9338.  48, s 71- 78 . doi: 10.1016/j.eurpsy.2017.04.001
  • Gjerde, Priyanthi Borgen; Jørgensen, Kjetil Nordbø; Steen, Nils Eiel; Melle, Ingrid; Andreassen, Ole Andreas; Steen, Vidar Martin & Agartz, Ingrid (2018). Association between olanzapine treatment and brain cortical thickness and gray/white matter contrast is moderated by cholesterol in psychotic disorders. Psychiatry Research : Neuroimaging.  ISSN 0925-4927.  282, s 55- 63 . doi: 10.1016/j.pscychresns.2018.10.001
  • Gohar, Sherif Mostafa Mohamed Ahmed; Dieset, Ingrid; Steen, Nils Eiel; Mørch, Ragni Helene; Vedal, Trude Seselie Jahr; Steen, Vidar Martin; Andreassen, Ole Andreas & Melle, Ingrid (2018). Association between serum lipid levels, osteoprotegerin and depressive symptomatology in psychotic disorders. European Archives of Psychiatry and Clinical Neuroscience.  ISSN 0940-1334.  269(7), s 795- 802 . doi: 10.1007/s00406-018-0897-z Full text in Research Archive.
  • 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 (2018). Attenuated Notch signaling in schizophrenia and bipolar disorder. Scientific Reports.  ISSN 2045-2322.  8:5349, s 1- 8 . doi: 10.1038/s41598-018-23703-w Full text in Research Archive.
  • 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 (2018). Exploring the Wnt signaling pathway in schizophrenia and bipolar disorder. Translational psychiatry.  ISSN 2158-3188.  8:55, s 1- 10 . doi: 10.1038/s41398-018-0102-1 Full text in Research Archive.
  • Iversen, Trude Seselie Jahr; Steen, Nils Eiel; Dieset, Ingrid; Hope, Sigrun; Mørch, Ragni Helene; Gardsjord, Erlend Strand; Jørgensen, Kjetil Nordbø; Melle, Ingrid; Andreassen, Ole Andreas; Molden, Espen & Jönsson, Erik Gunnar (2018). Side effect burden of antipsychotic drugs in real life - Impact of gender and polypharmacy. Progress in Neuro-psychopharmacology and Biological Psychiatry.  ISSN 0278-5846.  82, s 263- 271 . doi: 10.1016/j.pnpbp.2017.11.004
  • Vedal, Trude Seselie Jahr; Steen, Nils Eiel; Birkeland, Kåre I.; Dieset, Ingrid; Reponen, Elina Johanna; Anderssen, Jannicke Fjæra; Rødevand, Linn; Melle, Ingrid; Andreassen, Ole Andreas; Molden, Espen & Jönsson, Erik Gunnar (2018). Free thyroxine and thyroid-stimulating hormone in severe mental disorders: A naturalistic study with focus on antipsychotic medication. Journal of Psychiatric Research.  ISSN 0022-3956.  106, s 74- 81 . doi: 10.1016/j.jpsychires.2018.09.014
  • Aas, Monica; Dieset, Ingrid; Hope, Sigrun; Hoseth, Eva Zsuzsanna; Mørch, Ragni Helene; Reponen, Elina Johanna; Steen, Nils Eiel; Anderssen, Jannicke Fjæra; Ueland, Thor; Aukrust, Pål; Agartz, Ingrid; Andreassen, Ole Andreas & Melle, Ingrid (2017). Childhood maltreatment severity is associated with elevated C-reactive protein and body mass index in adults with schizophrenia and bipolar diagnoses. Brain, behavior, and immunity.  ISSN 0889-1591.  65, s 342- 349 . doi: 10.1016/j.bbi.2017.06.005 Full text in Research Archive.
  • Aas, Monica; Kauppi, Karolina; Brandt, Christine Lycke; Tesli, Martin Steen; Kaufmann, Tobias; Steen, Nils Eiel; Agartz, Ingrid; Westlye, Lars Tjelta; Andreassen, Ole Andreas & Melle, Ingrid (2017). Childhood trauma is associated with increased brain responses to emotionally negative as compared with positive faces in patients with psychotic disorders. Psychological Medicine.  ISSN 0033-2917.  47(4), s 669- 679 . doi: 10.1017/S0033291716002762
  • Fjukstad, Katrine Kveli; Engum, Anne; Lydersen, Stian; Dieset, Ingrid; Steen, Nils Eiel; Andreassen, Ole Andreas & Spigset, Olav (2016). Metabolic abnormalities related to treatment with selective serotonin reuptake inhibitors in patients with schizophrenia or bipolar disorder.. Journal of Clinical Psychopharmacology.  ISSN 0271-0749.  36(6), s 615- 620 . doi: 10.1097/JCP.0000000000000582
  • Steen, Nils Eiel; Aas, Monica; Simonsen, Carmen Elisabeth; Dieset, Ingrid; Tesli, Martin Steen; Nerhus, Mari; Gardsjord, Erlend Strand; Mørch, Ragni Helene; Agartz, Ingrid; Melle, Ingrid; Ueland, Torill; Spigset, Olav & Andreassen, Ole Andreas (2016). Serum levels of second-generation antipsychotics are associated with cognitive function in psychotic disorders. World Journal of Biological Psychiatry.  ISSN 1562-2975.  18(6), s 471- 482 . doi: 10.1080/15622975.2016.1245441
  • Steen, Nils Eiel; Aas, Monica; Simonsen, Carmen Elisabeth; Dieset, Ingrid; Tesli, Martin Steen; Nerhus, Mari; Gardsjord, Erlend Strand; Mørch, Ragni Helene; Agartz, Ingrid; Melle, Ingrid; Vaskinn, Anja; Spigset, Olav & Andreassen, Ole Andreas (2016). Serum concentrations of mood stabilizers are associated with memory, but not other cognitive domains in psychosis spectrum disorders; explorative analyses in a naturalistic setting. International journal of bipolar disorders.  ISSN 2194-7511.  4(24) . doi: 10.1186/s40345-016-0067-z
  • Tesli, Martin Steen; Wirgenes, Katrine Verena; Hughes, Timothy; Bettella, Francesco; Athanasiu, Lavinia; Hoseth, Eva Zsuzsanna; Nerhus, Mari; Lagerberg, Trine Vik; Steen, Nils Eiel; Agartz, Ingrid; Melle, Ingrid; Dieset, Ingrid; Djurovic, Srdjan & Andreassen, Ole Andreas (2016). VRK2 gene expression in schizophrenia, bipolar disorder and healthy controls. British Journal of Psychiatry.  ISSN 0007-1250.  209(2), s 114- 120 . doi: 10.1192/bjp.bp.115.161950
  • Quintana, Daniel; Westlye, Lars Tjelta; Kaufmann, Tobias; Rustan, Øyvind; Brandt, Christine Lycke; Haatveit, Beathe Christin; Steen, Nils Eiel & Andreassen, Ole Andreas (2015). Reduced heart rate variability in schizophrenia and bipolar disorder compared to healthy controls. Acta Psychiatrica Scandinavica.  ISSN 0001-690X.  133(1), s 44- 52 . doi: 10.1111/acps.12498
  • Steen, Nils Eiel; Aas, Monica; Simonsen, Carmen Elisabeth; Dieset, Ingrid; Tesli, Martin Steen; Nerhus, Mari; Gardsjord, Erlend Strand; Mørch, Ragni Helene; Agartz, Ingrid; Melle, Ingrid; Vaskinn, Anja; Spigset, Olav & Andreassen, Ole Andreas (2015). Serum level of venlafaxine is associated with better memory in psychotic disorders. Schizophrenia Research.  ISSN 0920-9964.  169(1-3), s 386- 392 . doi: 10.1016/j.schres.2015.10.021
  • Haram, Marit; Tesli, Martin Steen; Dieset, Ingrid; Steen, Nils Eiel; Røssberg, Jan Ivar; Djurovic, Srdjan; Andreassen, Ole Andreas & Melle, Ingrid (2014). An attempt to identify single nucleotide polymorphisms contributing to possible relationships between personality traits and oxytocin-related genes. Neuropsychobiology.  ISSN 0302-282X.  69(1), s 25- 30 . doi: 10.1159/000356965
  • Steen, Nils Eiel; Methlie, Paal; Lorentzen, Steinar; Dieset, Ingrid; Aas, Monica; Nerhus, Mari; Haram, Marit; Agartz, Ingrid; Melle, Ingrid; Berg, Jens Petter & Andreassen, Ole Andreas (2014). Altered systemic cortisol metabolism in bipolar disorder and schizophrenia spectrum disorders. Journal of Psychiatric Research.  ISSN 0022-3956.  52(1), s 57- 62 . doi: 10.1016/j.jpsychires.2014.01.017
  • Aas, Monica; Haukvik, Unn Kristin H.; Djurovic, Srdjan; Bergmann, Ørjan; Athanasiu, Lavinia; Tesli, Martin Steen; Hellvin, Tone; Steen, Nils Eiel; Agartz, Ingrid; Lorentzen, Steinar; Sundet, Kjetil Søren; Andreassen, Ole Andreas & Melle, Ingrid (2013). BDNF val66met modulates the association between childhood trauma, cognitive and brain abnormalities in psychoses. Progress in Neuro-psychopharmacology and Biological Psychiatry.  ISSN 0278-5846.  46, s 181- 188 . doi: 10.1016/j.pnpbp.2013.07.008
  • Hope, Sigrun; Ueland, Thor; Steen, Nils Eiel; Dieset, Ingrid; Lorentzen, Steinar; Berg, Akiah Ottesen; Agartz, Ingrid; Aukrust, Pål & Andreassen, Ole Andreas (2013). Interleukin 1 receptor antagonist and soluble tumor necrosis factor receptor 1 are associated with general severity and psychotic symptoms in schizophrenia and bipolar disorder. Schizophrenia Research.  ISSN 0920-9964.  145(1-3), s 36- 42 . doi: 10.1016/j.schres.2012.12.023
  • Larsson, Sara; Aas, Monica; Klungsøyr, Ole; Agartz, Ingrid; Mork, Erlend; Steen, Nils Eiel; Barrett, Elizabeth Ann; Lagerberg, Trine Vik; Røssberg, Jan Ivar; Melle, Ingrid; Andreassen, Ole Andreas & Lorentzen, Steinar (2013). Patterns of childhood adverse events are associated with clinical characteristics of bipolar disorder. BMC Psychiatry.  ISSN 1471-244X.  13 . doi: 10.1186/1471-244X-13-97
  • Larsson, Sara; Andreassen, Ole Andreas; Aas, Monica; Røssberg, Jan Ivar; Mork, Erlend; Steen, Nils Eiel; Barrett, Elisabeth Ann; Lagerberg, Trine Vik; Peleikis, Dawn Elisabeth; Agartz, Ingrid; Melle, Ingrid & Lorentzen, Steinar (2013). High prevalence of childhood trauma in patients with schizophrenia spectrum and affective disorder. Comprehensive Psychiatry.  ISSN 0010-440X.  54(2), s 123- 127 . doi: 10.1016/j.comppsych.2012.06.009
  • Mork, Erlend; Walby, Fredrik A; Harkavy-Friedman, Jill M.; Barrett, Elizabeth Ann; Steen, Nils Eiel; Lorentzen, Steinar; Andreassen, Ole Andreas; Melle, Ingrid & Mehlum, Lars (2013). Clinical characteristics in schizophrenia patients with or without suicide attempts and non-suicidal self-harm - a cross-sectional study. BMC Psychiatry.  ISSN 1471-244X.  13 . doi: 10.1186/1471-244X-13-255 Full text in Research Archive.
  • Aas, Monica; Djurovic, Srdjan; Athanasiu, Lavinia; Steen, Nils Eiel; Agartz, Ingrid; Lorentzen, Steinar; Sundet, Kjetil Søren; Andreassen, Ole Andreas & Melle, Ingrid (2012). Serotonin Transporter Gene Polymorphism, Childhood Trauma, and Cognition in Patients With Psychotic Disorders. Schizophrenia Bulletin.  ISSN 0586-7614.  38(1), s 15- 22 . doi: 10.1093/schbul/sbr113
  • Aas, Monica; Steen, Nils Eiel; Agartz, Ingrid; Aminoff, Sofie Ragnhild; Lorentzen, Steinar; Sundet, Kjetil Søren; Andreassen, Ole Andreas & Melle, Ingrid (2012). Is cognitive impairment following early life stress in severe mental disorders based on specific or general cognitive functioning?. Psychiatry Research.  ISSN 0165-1781.  198(3), s 495- 500 . doi: 10.1016/j.psychres.2011.12.045
  • Hope, Sigrun; Dieset, Ingrid; Agartz, Ingrid; Steen, Nils Eiel; Ueland, Thor; Melle, Ingrid; Aukrust, Pål & Andreassen, Ole Andreas (2011). Affective symptoms are associated with markers of inflammation and immune activation in bipolar disorders but not in schizophrenia. Journal of Psychiatric Research.  ISSN 0022-3956.  45(12), s 1608- 1616 . doi: 10.1016/j.jpsychires.2011.08.003
  • Steen, Nils Eiel; Lorentzen, Steinar; Barrett, Elisabeth Ann; Lagerberg, Trine Vik; Hope, Sigrun; Larsson, Sara; Berg, Akiah Ottesen; Agartz, Ingrid; Melle, Ingrid; Berg, Jens Petter & Andreassen, Ole Andreas (2011). Sex-specific cortisol levels in bipolar disorder and schizophrenia during mental challenge - Relationship to clinical characteristics and medication. Progress in Neuro-psychopharmacology and Biological Psychiatry.  ISSN 0278-5846.  35(4), s 1100- 1107 . doi: 10.1016/j.pnpbp.2011.03.008
  • Steen, Nils Eiel; Methlie, Paal; Lorentzen, Steinar; Hope, Sigrun; Barrett, Elisabeth Ann; Larsson, Sara; Mork, Erlend; Almås, Bjørg; Løvås, Kristian; Agartz, Ingrid; Melle, Ingrid; Berg, Jens Petter & Andreassen, Ole Andreas (2011). Increased systemic cortisol metabolism in patients with schizophrenia and bipolar disorder: a mechanism for increased stress vulnerability?. Journal of Clinical Psychiatry.  ISSN 0160-6689.  72(11), s 1515- 1521 . doi: 10.4088/JCP.10m06068yel
  • Barrett, Elisabeth Ann; Sundet, Kjetil Søren; Færden, Ann; Agartz, Ingrid; Bratlien, Unni; Romm, Kristin Lie; Mork, Erlend; Røssberg, Jan Ivar; Steen, Nils Eiel; Andreassen, Ole Andreas & Melle, Ingrid (2010). Suicidality in first episode psychosis is associated with insight and negative beliefs about psychosis. Schizophrenia Research.  ISSN 0920-9964.  123(2-3), s 257- 262 . doi: 10.1016/j.schres.2010.07.018
  • Barrett, Elizabeth Ann; Sundet, Kjetil Søren; Færden, Ann; Nesvåg, Ragnar; Agartz, Ingrid; Fosse, Roar; Mork, Erlend; Steen, Nils Eiel; Andreassen, Ole Andreas & Melle, Ingrid (2010). Suicidality before and in the early phases of first episode psychosis. Schizophrenia Research.  ISSN 0920-9964.  119(1-3), s 11- 17 . doi: 10.1016/j.schres.2010.03.022
  • Hope, Sigrun; Melle, Ingrid; Aukrust, Pål; Agartz, Ingrid; Lorentzen, Steinar; Djurovic, Srdjan; Steen, Nils Eiel; Ueland, Thor & Andreassen, Ole Andreas (2010). Osteoprotegerin levels in patients with severe mental disorders. Journal of Psychiatry & Neuroscience.  ISSN 1180-4882.  35(5), s 304- 310 . doi: 10.1503/jpn.090088
  • Larsson, Sara; Lorentzen, Steinar; Mork, Erlend; Barrett, Elisabeth Ann; Steen, Nils Eiel; Lagerberg, Trine Vik; Berg, Akiah Ottesen; Aminoff, Sofie Ragnhild; Agartz, Ingrid; Melle, Ingrid & Andreassen, Ole Andreas (2010). Age at onset of bipolar disorder in a Norwegian catchment area sample. Journal of Affective Disorders.  ISSN 0165-0327.  124(1-2), s 174- 177 . doi: 10.1016/j.jad.2009.10.031
  • Steen, Nils Eiel; Tesli, Martin Steen; Kähler, Anna Katarina; Methlie, Paal; Hope, Sigrun; Barrett, Elisabeth Ann; Larsson, Sara; Mork, Erlend; Løvås, Kristian; Røssberg, Jan Ivar; Agartz, Ingrid; Melle, Ingrid; Djurovic, Srdjan; Lorentzen, Steinar; Berg, Jens Petter & Andreassen, Ole Andreas (2010). SRD5A2 is associated with increased cortisol metabolism in schizophrenia spectrum disorders. Progress in Neuro-psychopharmacology and Biological Psychiatry.  ISSN 0278-5846.  34(8), s 1500- 1506 . doi: 10.1016/j.pnpbp.2010.08.013
  • Hope, Sigrun; Melle, Ingrid; Aukrust, Pål; Steen, Nils Eiel; Birkenæs, Astrid Brate; Lorentzen, Steinar; Agartz, Ingrid; Ueland, T & Andreassen, Ole Andreas (2009). Similar immune profile in bipolar disorder and schizophrenia: selective increase in soluble tumor necrosis factor receptor I and von Willebrand factor. Bipolar Disorders.  ISSN 1398-5647.  11(7), s 726- 734

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  • Smeland, Olav Bjerkehagen; Bahrami, Shahram; Frei, Oleksandr; Shadrin, Alexey A.; Savage, Jeanne E.; Watanabe, Kyoko; Krull, Florian; Bettella, Francesco; Steen, Nils Eiel; Ueland, Torill; Posthuma, Danielle; Djurovic, Srdjan; Dale, Anders & Andreassen, Ole Andreas (2018). Genome-wide analysis reveals extensive genetic overlap between schizophrenia, bipolar disorder and intelligence.
  • Vedal, Trude Seselie Jahr; Steen, Nils Eiel; Birkeland, Kåre I.; Dieset, Ingrid; Reponen, Elina Johanna; Laskemoen, Jannicke F.; Rødevand, Linn; Melle, Ingrid; Andreassen, Ole Andreas; Molden, Espen & Jönsson, Erik Gunnar (2018). Response: Are thyroid abnormalities only related to antipsychotic treatment in patients with severe mental disorders?. Journal of Psychiatric Research.  ISSN 0022-3956. . doi: 10.1016/j.jpsychires.2018.11.012
  • Quintana, Daniel; Steen, Nils Eiel & Andreassen, Ole Andreas (2017). The Promise of Intranasal Esketamine as a Novel and Effective Antidepressant. JAMA psychiatry.  ISSN 2168-6238. . doi: 10.1001/jamapsychiatry.2017.3738
  • Aas, Monica; Djurovic, Srdjan; Athanasiu, Lavinia; Tesli, Martin Steen; Hellvin, Tone; Steen, Nils Eiel; Agartz, Ingrid; Lorentzen, Steinar; Sundet, Kjetil Søren; Andreassen, Ole A & Melle, Ingrid (2012). Interaction between (BDNF) VAL66Met, childhood adverse events and impaired cognition in patients with schizophrenia spectrum and bipolar disorder. Early Intervention in Psychiatry.  ISSN 1751-7885.  6, s 45- 45
  • Aas, Monica; Djurovic, Srdjan; Athanasiu, Lavinia; Steen, Nils Eiel; Agartz, Ingrid; Lorentzen, Steinar; Sundet, Kjetil Søren; Andreassen, Ole Andreas & Melle, Ingrid (2011). SEROTONIN TRANSPORTER GENE POLYMORPHISMS, CHILDHOOD TRAUMA AND COGNITION IN PATIENTS WITH PSYCHOTIC DISORDERS. Schizophrenia Bulletin.  ISSN 0586-7614.  37, s 80- 80
  • Hope, Sigrun; Melle, Ingrid; Ueland, Thor; Lorentzen, Steinar; Steen, Nils Eiel; Berg, Akiah Ottesen; Dieset, Ingrid; Agartz, Ingrid; Aukrust, Pål & Andreassen, Ole Andreas (2011). INTERLEUKIN 1 RECEPTOR ANTAGONIST AND TUMOR NECROSIS FACTOR RECEPTOR 1 ARE ASSOCIATED WITH GENERAL SEVERITY AND PSYCHOTIC SYMPTOMS IN SCHIZOPHRENIA AND BIPOLAR DISORDER. Schizophrenia Bulletin.  ISSN 0586-7614.  37, s 115- 116
  • Hope, Sigrun; Melle, Ingrid; Aukrust, Pål; Steen, Nils Eiel; Birkenæs, Astrid Brate; Lorentzen, Steinar; Agartz, Ingrid; Ueland, Thor & Andreassen, Ole Andreas (2009). SIMILAR INFLAMMATORY PROFILE IN BIPOLAR DISORDER AND SCHIZOPHRENIA: SELECTIVE INCREASE IN SOLUBLE TUMOR NECROSIS FACTOR RECEPTOR I AND VON WILLEBRAND FACTOR. Schizophrenia Bulletin.  ISSN 0586-7614.  35, s 235- 235
  • Steen, Nils Eiel; Lorentzen, Steinar; Melle, Ingrid; Agartz, Ingrid; Berg, Jens Petter & Andreassen, Ole Andreas (2008). Variation in cortisol levels and relationship to stress in bipolar disorder. Biological Psychiatry.  ISSN 0006-3223.  63, s 142S- 142S

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Published Aug. 20, 2013 12:42 PM - Last modified Apr. 6, 2018 1:52 PM

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