• Actigraphy as an objective intra‑individual marker of activity patterns in acute‑phase bipolar disorder: a case series 

      Krane-Gartiser, Karoline; Asheim, Andreas; Fasmer, Ole Bernt; Morken, Gunnar; Vaaler, Arne; Scott, Janine Linda (Peer reviewed; Journal article, 2018-03-07)
      Background: Actigraphy could be an objective alternative to clinical ratings of motor activity in bipolar disorder (BD), which is of importance now that increased activity and energy are added as cardinal symptoms of ...
    • Genome-wide association study identifies 30 loci associated with bipolar disorder 

      Stahl, Eli A.; Breen, Gerome; Forstner, Andreas J.; McQuillin, Andrew; Ripke, Stephan; Trubetskoy, Vassily; Mattheisen, Manuel; Wang, Yunpeng; Coleman, Jonathan R.I.; Gaspar, Héléna A.; de Leeuw, Christiaan A.; Steinberg, Stacy; Pavlides, Jennifer M. Whitehead; Trzaskowski, Maciej; Byrne, Enda M.; Pers, Tune H.; Holmans, Peter A.; Richards, Alexander L.; Abbott, Liam; Agerbo, Esben; Akil, Huda; Albani, Diego; Alliey-Rodriguez, Ney; Als, Thomas D.; Anjorin, Adebayo; Antilla, Verneri; Awasthi, Swapnil; Badner, Judith A.; Bækvad-Hansen, Marie; Barchas, Jack D.; Bass, Nicholas; Bauer, Michael; Belliveau, Richard; Bergen, Sarah E.; Pedersen, Carsten Bøcker; Bøen, Erlend; Boks, Marco P.; Boocock, James; Budde, Monika; Bunney, William; Burmeister, Margit; Bybjerg-Grauholm, Jonas; Byerley, William; Casas, Miquel; Cerrato, Felecia; Cervantes, Pablo; Chambert, Kimberly; Charney, Alxander W.; Chen, Danfeng; Churchhouse, Claire; Clarke, Toni-Kim; Coryell, William; Craig, David W.; Cruceanu, Cristiana; Curtis, David; Czerski, Piotr M.; Dale, Anders; de Jong, Simone; Degenhardt, Franziska; Del-Favero, Jurgen; Depaulo, J. Raymond; Djurovic, Srdjan; Dobbyn, Amanda L.; Dumont, Ashley; Elvsåshagen, Torbjørn; Escott-Price, Valentina; Fan, Chun Chieh; Fischer, Sascha B.; Flickinger, Matthew; Foroud, Tatiana M.; Forty, Liz; Frank, Josef; Fraser, Christine; Freimer, Nelson B.; Frisén, Louise; Gade, Katrin; Gage, Diane; Garnham, Julie; Giambartolomei, Claudia; Pedersen, Marianne Giørtz; Goldstein, Jaqueline; Gordon, Scott D.; Gordon-Smith, Katherine; Green, Elaine K.; Green, Melissa J.; Greenwood, Tifany A.; Grove, Jakob; Guan, Weihua; Guzman-Parra, José; Hamshere, Marian L.; Hautzinger, Martin; Heilbronner, Urs; Herms, Stefan; Hipolito, Maria; Hoffmann, Per; Holland, Dominic; Huckins, Laura; Jamain, Stéphane; Johnson, Jessica S.; Juréus, Anders; Kandaswamy, Radhika; Karlsson, Robert; Kennedy, James L.; Kittel-Schneider, Sarah; Knowles, James A.; Kogevinas, Manolis; Koller, Anna C.; Kupka, Ralph; Lavebratt, Catharina; Lawrence, Jacob; Lawson, William B.; Leber, Markus; Lee, Phil H.; Levy, Shawn E.; Li, Jun Z.; Liu, Chunyu; Lucae, Susanne; Maaser, Anna; MacIntyre, Donald J.; Mahon, Pamela B.; Maier, Wolfgang; Martinsson, Lina; McCarroll, Steve; McGuffin, Peter; McInnis, Melvin G.; McKay, James D.; Medeiros, Helena; Medland, Sarah E.; Meng, Fan; Milani, Lili; Montgomery, Grant W.; Morris, Derek W.; Mühleisen, Thomas W.; Mullins, Niamh; Nguyen, Hoang; Nievergelt, Caroline M.; Adolfsson, Annelie Nordin; Nwulia, Evaristus A.; O'Donovan, Claire; Loohuis, Loes M. Olde; Ori, Anil P.S.; Oruc, Lilijana; Ösby, Urban; Perlis, Roy H.; Perry, Amy; Pfennig, Andrea; Potash, James B.; Purcell, Shaun M.; Regeer, Eline J.; Reif, Andreas; Reinbold, Céline S.; Rice, John P.; Rivas, Fabio; Rivera, Margarita; Roussos, Panos; Ruderfer, Douglas M.; Ryu, Euijung; Sánchez-Mora, Cristina; Schatzberg, Alan F.; Scheftner, William A.; Schork, Nicholas J.; Shannon Weickert, Cynthia; Shehktman, Tatyana; Shilling, Paul D.; Sigurdsson, Engilbert; Slaney, Claire; Smeland, Olav Bjerkehagen; Sobell, Janet L.; Søholm Hansen, Christine; Spijker, Anne T.; St Clair, David; Steffens, Michael; Strauss, John S.; Streit, Fabian; Strohmaier, Jana; Szelinger, Szabolcs; Thompson, Robert C.; Thorgeirsson, Thorgeir E; Treutlein, Jens; Vedder, Helmut; Wang, Weiqing; Watson, Stanley J.; Weickert, Thomas W.; Witt, Stephanie H.; Xi, Simon; Xu, Wei; Young, Allan H.; Zandi, Peter; Zhang, Peng; Zöllner, Sebastian; Adolfsson, Rolf; Agartz, Ingrid; Alda, Martin; Backlund, Lena; Baune, Bernhard T.; Bellivier, Frank; Berrettini, Wade H.; Biernacka, Joanna M.; Blackwood, Douglas H.R.; Boehnke, Michael; Børglum, Anders D.; Corvin, Aiden; Craddock, Nicholas; Daly, Mark J.; Dannlowski, Udo; Esko, Tõnu; Etain, Bruno; Frye, Mark; Fullerton, Janice M.; Gershon, Elliot S.; Gill, Michael; Goes, Fernando; Grigoroiu-Serbanescu, Maria; Hauser, Joanna; Hougaard, David M.; Hultman, Christina M.; Jones, Ian; Jones, Lisa A.; Kahn, René S.; Kirov, George; Landén, Mikael; Leboyer, Marion; Lewis, Cathryn M.; Li, Qingqin S.; Lissowska, Jolanta; Martin, Nicholas G.; Mayoral, Fermin; McElroy, Susan L.; McIntosh, Andrew M.; McMahon, Francis J.; Melle, Ingrid; Metspalu, Andres; Mitchell, Philip B.; Morken, Gunnar; Mors, Ole; Mortensen, Preben Bo; Müller-Myhsok, Bertram; Myers, Richard M.; Neale, Benjamin M.; Nimgaonkar, Vishwajit; Nordentoft, Merete; Nöthen, Markus M.; O'Donovan, Michael C; Ødegaard, Ketil Joachim; Owen, Michael J.; Paciga, Sara A.; Pato, Carlos; Pato, Michele T.; Posthuma, Danielle; Ramos-Quiroga, Josep Antoni; Ribasés, Marta; Rietschel, Marcella; Rouleau, Guy A.; Schalling, Martin; Schofield, Peter R.; Schulze, Thomas G.; Serretti, Alessandro; Smoller, Jordan W.; Stefansson, Hreinn; Stefansson, Kari; Stordal, Eystein; Sullivan, Patrick F.; Turecki, Gustavo; Vaaler, Arne; Vieta, Eduard; Vincent, John B.; Werge, Thomas; Nurnberger, John I.; Wray, Naomi R.; Di Florio, Arianna; Edenberg, Howard J.; Cichon, Sven; Ophoff, Roel A.; Scott, Laura J.; Andreassen, Ole Andreas; Kelsoe, John; Sklar, Pamela (Journal article; Peer reviewed, 2019)
      Bipolar disorder is a highly heritable psychiatric disorder. We performed a genome-wide association study (GWAS) including 20,352 cases and 31,358 controls of European descent, with follow-up analysis of 822 variants with ...
    • Lower circulating neuron-specific enolase concentrations in adults and adolescents with severe mental illness 

      Andreou, Dimitrios; Steen, Nils Eiel; Jørgensen, Kjetil Nordbø; Smelror, Runar Elle; Wedervang-Resell, Kirsten; Nerland, Stener; Westlye, Lars Tjelta; Nærland, Terje; Myhre, Anne Margrethe; Joa, Inge; Reitan, Solveig Merete Klæbo; Vaaler, Arne; Morken, Gunnar; Bøen, Erlend; Elvsåshagen, Torbjørn; Boye, Birgitte; Malt, Ulrik Fredrik; Aukrust, Pål; Skrede, Silje; Kroken, Rune Andreas; Johnsen, Erik; Djurovic, Srdjan; Andreassen, Ole; Ueland, Thor; Agartz, Ingrid (Journal article; Peer reviewed, 2021)
      Background: Both neurodegenerative and neurodevelopmental abnormalities have been suggested to be part of the etiopathology of severe mental illness (SMI). Neuron-specific enolase (NSE), mainly located in the neuronal ...
    • Motor activity patterns in acute schizophrenia and other psychotic disorders can be differentiated from bipolar mania and unipolar depression 

      Krane-Gartiser, Karoline; Henriksen, Tone Elise Gjøtterud; Morken, Gunnar; Vaaler, Arne; Fasmer, Ole Bernt (Peer reviewed; Journal article, 2018-12)
      The purpose of this study was to compare 24-h motor activity patterns between and within three groups of acutely admitted inpatients with schizophrenia and psychotic disorders (n = 28), bipolar mania (n = 18) and motor-retarded ...
    • A pilot study to determine whether combinations of objectively measured activity parameters can be used to differentiate between mixed states, mania, and bipolar depression 

      Scott, Janine Linda; Vaaler, Arne; Fasmer, Ole Bernt; Morken, Gunnar; Krane-Gartiser, Karoline (Peer reviewed; Journal article, 2017-03-01)
      Background: Until recently, actigraphy studies in bipolar disorders focused on sleep rather than daytime activity in mania or depression, and have failed to analyse mixed episodes separately. Furthermore, even those studies ...
    • Variability of activity patterns across mood disorders and time of day 

      Krane-Gartiser, Karoline; Vaaler, Arne; Fasmer, Ole Bernt; Sørensen, Kjetil; Morken, Gunnar; Scott, Janine Linda (Peer reviewed; Journal article, 2017-12-19)
      Background: Few actigraphy studies in mood disorders have simultaneously included unipolar (UP) and bipolar (BD) depression or BD mixed states as a separate subgroup from mania. This study compared objectively measured ...