• Genome-wide meta-analysis identifies new loci and functional pathways influencing Alzheimer's disease risk 

      Jansen, Iris E.; Savage, Jeanne E.; Watanabe, Kyoko; Bryois, Julien; Williams, Dylan M.; Steinberg, Stacy; Sealock, Julia; Karlsson, Ida K.; Hägg, Sara; Athanasiu, Lavinia; Voyle, Nicola; Proitsi, Petroula; Witoelar, Aree; Stringer, Sven; Aarsland, Dag; Almdahl, Ina Selseth; Andersen, Fred; Bergh, Sverre; Bettella, Francesco; Björnsson, Sigurbjörn; Brækhus, Anne; Bråthen, Geir; de Leeuw, Christiaan A.; Desikan, Rahul S.; Djurovic, Srdjan; Dumitrescu, Logan; Fladby, Tormod; Hohman, Timothy J.; Jónsson, Pálmi V.; Kiddle, Steven J; Rongve, Arvid; Saltvedt, Ingvild; Sando, Sigrid Botne; Selbæk, Geir; Shoai, Maryam; Skene, Nathan G.; Snædal, Jón G.; Stordal, Eystein; Ulstein, Ingun; Wang, Yunpeng; White, Linda Rosemary; Hardy, John; Hjerling-Leffler, Jens; Sullivan, Patrick; van der Flier, Wiesje M.; Dobson, Richard; Davis, Lea K; Stefánsson, Hreinn; Stefánsson, Kári; Pedersen, Nancy L; Ripke, Stephan; Andreassen, Ole Andreas; Posthuma, Danielle (Journal article; Peer reviewed, 2019)
      Alzheimer’s disease (AD) is highly heritable and recent studies have identified over 20 disease-associated genomic loci. Yet these only explain a small proportion of the genetic variance, indicating that undiscovered loci ...
    • In Brief Neuropsychological Assessment, Amnestic Mild Cognitive Impairment (MCI) Is associated with Cerebrospinal Fluid Biomarkers for Cognitive Decline in Contrast to the Prevailing NIA-AA MCI Criterion 

      Hessen, Erik; Kirsebom, Bjørn-Eivind; Eriksson, Cecilia Magdalena; Eliassen, Carl Fredrik Andestad; Nakling, Arne; Bråthen, Geir; Waterloo, Knut; Aarsland, Dag; Fladby, Tormod (Journal article; Peer reviewed, 2019)
      Background: In the care of persons with cognitive problems, it is important to use a valid mild cognitive impairment (MCI) criterion that discriminates well between normal and pathological aging. Objective: To find ...
    • Incidence of Young Onset Dementia in Central Norway: A Population-Based Study 

      Kvello-Alme, Marte; Bråthen, Geir; White, Linda Rosemary; Sando, Sigrid Botne (Peer reviewed; Journal article, 2020)
      Background: The epidemiology of young onset dementia is little researched compared to late onset dementia. Information on incidence rates is vital for medical professionals, and for government planning purposes. Objective: ...
    • Karakteristika ved pasienter med Motornevronsykdom i Nord-Trøndelag fra 1984 til 2018 

      Taraldsen, Maria Dalen Taraldsen; Bjørnstadjordet, Mats; Bråthen, Geir; Meisingset, Tore Wergeland (Master thesis, 2020)
      Sammendrag Bakgrunn Motornevronsykdommene (MND) kjennetegnes av progressivt tap av motoriske nervebaner uten kurativ behandling og kort forventet levetid. I denne studien ville vi gjøre en journalgjennomgang av ...
    • Longitudinal cerebrospinal fluid measurements show glial hypo- and hyperactivation in predementia Alzheimer’s disease 

      Nordengen, Kaja; Kirsebom, Bjørn-Eivind Seljelid; Richter, Grit; Pålhaugen, Lene; Gisladottir, Berglind; Siafarikas, Nikias Ioannis; Nakling, Arne Exner; Rongve, Arvid; Bråthen, Geir; Grøntvedt, Gøril Rolfseng; Gonzalez, Fernando; Waterloo, Knut; Sharma, Kulbhushan; Karikari, Thomas; Vromen, Eleonora M.; Tijms, Betty M.; Visser, Pieter J.; Selnes, Per; Kramberger, Milicia G.; Winblad, Bengt; Blennow, Kaj; Fladby, Tormod (Peer reviewed; Journal article, 2023)
      Background Brain innate immune activation is associated with Alzheimer’s disease (AD), but degrees of activation may vary between disease stages. Thus, brain innate immune activation must be assessed in longitudinal ...
    • 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 (Journal article; Peer reviewed, 2018)
      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 (Peer reviewed; Journal article, 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 ...
    • Plasma apolipoprotein E levels in longitudinally followed patients with mild cognitive impairment and Alzheimer’s disease 

      Giannisis, Andreas; Al-Grety, Asma; Carlsson, Henrik; Patra, Kalicharan; Twohig, Daniel; Sando, Sigrid Botne; Lauridsen, Camilla; Berge, Guro; Grøntvedt, Gøril Rolfseng; Bråthen, Geir; White, Linda Rosemary; Kultima, Kim; Nielsen, Henrietta M. (Peer reviewed; Journal article, 2022)
      Background Low levels of plasma apolipoprotein E (apoE) and presence of the APOE ε4 allele are associated with an increased risk of Alzheimer’s disease (AD). Although the increased risk of AD in APOE ε4-carriers is ...
    • Predictive and diagnostic utility of brief neuropsychological assessment in detecting Alzheimer's pathology and progression to dementia 

      Eliassen, Ingvild Vøllo; Fladby, Tormod; Kirsebom, Bjørn-Eivind; Waterloo, Knut; Eckerström, Marie; Wallin, Anders; Bråthen, Geir; Aarsland, Dag; Hessen, Erik (Peer reviewed; Journal article, 2020)
      Objective: To assess the role of brief neuropsychological assessments in prediction and identification of Alzheimer’s disease (AD) pathology and progression to AD dementia. Method: Adults (N = 255; range = 40–81 years) ...
    • The prevalence and subtypes of young onset dementia in central Norway: A population-based study 

      Kvello-Alme, Marte; Bråthen, Geir; White, Linda Rosemary; Sando, Sigrid Botne (Peer reviewed; Journal article, 2019)
      Background: Young onset dementia poses several challenges for the individual, health care, and society that are not normally relevant for late onset dementia, but is little researched. Objective: To determine the ...
    • Psychiatric Comorbidity in Epilepsy 

      Revdal, Eline (Doctoral theses at NTNU;2024:146, Doctoral thesis, 2024)
      Epilepsy is a disease of the brain defined by recurrent epileptic seizures with various clinical presentations. The disorder has neurobiological, cognitive, psychological, and social consequences. Many of the epilepsies ...
    • Quantitative EEG findings in patients with acute, brief depression combined with other fluctuating psychiatric symptoms: a controlled study from an acute psychiatric department 

      Bjørk, Marte Helene; Sand, Trond; Bråthen, Geir; Linaker, Olav Morten; Morken, Gunnar; Nilsen, Brigt; Vaaler, Arne (Journal article; Peer reviewed, 2008)
      Background: Patients with brief depressive episodes and concurrent rapidly fluctuating psychiatric symptoms do not fit current diagnostic criteria and they can be difficult to diagnose and treat in an acute psychiatric ...
    • Regression-based norms for the FAS phonemic fluency test for ages 40–84 based on a Norwegian sample 

      Lorentzen, Ingrid Myrvoll; Espenes, Johan Jacob; Hessen, Erik; Waterloo, Knut; Bråthen, Geir; Timón, Santiago; Aarsland, Dag; Fladby, Tormod; Kirsebom, Bjørn-Eivind (Journal article; Peer reviewed, 2021)
      The FAS phonemic fluency test is a commonly used neuropsychological test of executive function and processing speed. Although Norwegian discrete norms have been developed for the FAS test, American regression-based norms ...
    • Safety and efficacy of plasma transfusion from exercise - trained donors in patients with early Alzheimer’s disease: protocol for the ExPlas study 

      Tari, Atefe R; Berg, Helene Haugen; Videm, Vibeke; Bråthen, Geir; White, Linda Rosemary; Røsbjørgen, Ragnhild; Scheffler, Katja; Dalen, Håvard; Holte, Espen; Håberg, Asta Kristine; Selbæk, Geir; Lydersen, Stian; Duezel, Emrah; Bergh, Sverre; Logan-halvorsrud, Kjell Rune; Sando, Sigrid Botne; Wisløff, Ulrik (Peer reviewed; Journal article, 2022)
      Introduction Given that exercise training reduces the risk of developing Alzheimer’s disease (AD), induces changes in the blood composition and has widespread systemic benefits, it is reasonable to hypothesise that exercised ...
    • Screening for Alzheimer’s Disease: Cognitive Impairment in Self-Referred and Memory Clinic-Referred Patients 

      Kirsebom, Bjørn-Eivind Seljelid Bordewic; Espenes, Ragna; Waterloo, Knut; Hessen, Erik; Johnsen, Stein Harald; Bråthen, Geir; Aarsland, Dag; Fladby, Tormod (Journal article; Peer reviewed, 2017)
      Background: Cognitive assessment is essential in tracking disease progression in AD. Presently, cohorts including preclinical at-risk participants are recruited by different means, which may bias cognitive and clinical ...
    • Seizure Precipitants 

      Samsonsen, Christian (Doctoral theses at NTNU;2017:214, Doctoral thesis, 2017)
      In the comprehensive management of epilepsy, both preventive pharmacological treatment and awareness of possible seizure precipitating factors are important. The true cause of seizure generation is often hard to disentangle, ...
    • Stable cerebrospinal fluid neurogranin and β-site amyloid precursor protein cleaving enzyme 1 levels differentiate predementia Alzheimer's disease patients 

      Kirsebom, Bjørn-Eivind; Richter, Grit; Nordengen, Kaja; Aarsland, Dag; Bråthen, Geir; Tijms, Betty M; Visser, Pieter Jelle; Nilsson, Johanna; Selnes, Per; Kramberger, Milica G.; Winblad, Bengt; Waterloo, Knut; Gísladóttir, Berglind; Blennow, Kaj; Fladby, Tormod (Peer reviewed; Journal article, 2022)
      Cerebrospinal fluid (CSF) β-site amyloid precursor protein cleaving enzyme 1 (BACE1), neurogranin and the neurogranin/BACE1 ratio are proposed markers for Alzheimer’s disease. BACE1 is also a drug target. However, CSF ...
    • Stroke risk after transient ischemic attack in a Norwegian prospective cohort 

      Ildstad, Fredrik; Ellekjær, Hanne; Wethal, Torgeir; Lydersen, Stian; Sund, Janne Kutschera; Fjærtoft, Hild; Schüler, Stephan; Horn, Jens; Bråthen, Geir; Midtsæther, Ann-Grete; Morsund, Åse Hagen; Lillebø, Marja-Liisa; Seljeseth, Yngve Müller; Indredavik, Bent (Journal article; Peer reviewed, 2019)
      Background Transient ischemic attack (TIA) is a risk factor of stroke. Modern treatment regimens and changing risk factors in the population justify new estimates of stroke risk after TIA, and evaluation of the recommended ...
    • Structure-function relationships in biological neural networks and the influence of neurodegenerative processes on such dynamics 

      Valderhaug, Vibeke Devold (Doctoral theses at NTNU;2020:77, Doctoral thesis, 2020)
    • Symptoms of epilepsy and organic brain dysfunctions in patients with acute, brief depression combined with other fluctuating psychiatric symptoms: a controlled study from an acute psychiatric department 

      Vaaler, Arne; Morken, Gunnar; Linaker, Olav Morten; Sand, Trond; Kvistad, Kjell Arne; Bråthen, Geir (Journal article; Peer reviewed, 2009)
      Background: In psychiatric acute departments some patients present with brief depressive periods accompanied with fluctuating arrays of other psychiatric symptoms like psychosis, panic or mania. For the purpose of the ...