2021

• Groven, Nina; Reitan, Solveig Merete Klæbo; Fors, Egil Andreas; Guzey, Ismail Cuneyt. (2021) Kynurenine metabolites and ratios differ between chronic fatigue syndrome, fibromyalgia, and healthy controls. Psychoneuroendocrinology. volum 131.
  Vitenskapelig artikkel
• Melby, Katrine; Nygård, Mona; Brobakken, Mathias Forsberg; Gråwe, Rolf W.; Guzey, Ismail Cuneyt; Reitan, Solveig Merete Klæbo; Vedul-Kjelsås, Einar; Heggelund, Jørn; Lara Cabrera, Mariela Loreto. (2021) Test-retest reliability of the patient activation measure-13 in adults with substance use disorders and schizophrenia spectrum disorders. International Journal of Environmental Research and Public Health. volum 18>1185 (3).
  Vitenskapelig artikkel

2020

• Bragantini, Daniela; Sivertsen, Børge; Gehrman, Philip; Lydersen, Stian; Guzey, Ismail Cuneyt. (2020) Epidemiological differences in levels of depressive signs among nocturnal symptoms of insomnia; results from the HUNT study. Sleep Science and Practice (SSP).
  Vitenskapelig artikkel
• Brobakken, Mathias Forsberg; Nygård, Mona; Guzey, Ismail Cuneyt; Morken, Gunnar; Reitan, Solveig Merete Klæbo; Heggelund, Jørn; Vedul-Kjelsås, Einar; Wang, Eivind. (2020) One‐year aerobic interval training in outpatients with schizophrenia : a randomized controlled trial. Scandinavian Journal of Medicine & Science in Sports. volum 30 (12).
  Vitenskapelig artikkel
• Nygård, Mona; Brobakken, Mathias Forsberg; Taylor, Joshua L.; Reitan, Solveig Merete Klæbo; Guzey, Ismail Cuneyt; Morken, Gunnar; Lydersen, Stian; Vedul-Kjelsås, Einar; Wang, Eivind; Heggelund, Jørn. (2020) Strength training restores force‐generating capacity in patients with schizophrenia. Scandinavian Journal of Medicine & Science in Sports. volum 31 (3).
  Vitenskapelig artikkel

2019

• Bragantini, Daniela; Sivertsen, Børge; Gehrman, Philip; Lydersen, Stian; Guzey, Ismail Cuneyt. (2019) Differences in anxiety levels among symptoms of insomnia. The HUNT study. Sleep Health. volum 5 (4).
  Vitenskapelig artikkel
• Bragantini, Daniela; Sivertsen, Børge; Gehrman, Philip; Lydersen, Stian; Guzey, Ismail Cuneyt. (2019) Genetic polymorphisms associated with sleep-related phenotypes; relationships with individual nocturnal symptoms of insomnia in the HUNT study. BMC Medical Genetics. volum 20.
  Vitenskapelig artikkel
• Bragantini, Daniela; Sivertsen, Børge; Gehrman, Philip; Lydersen, Stian; Guzey, Ismail Cuneyt. (2019) Variations in circadian genes and individual nocturnal symptoms of insomnia. The HUNT study. Chronobiology International. volum 36 (5).
  Vitenskapelig artikkel
• Brobakken, Mathias F; Nygård, Mona; Guzey, Ismail Cuneyt; Morken, Gunnar; Reitan, Solveig Merete Klæbo; Heggelund, Jørn; Wang, Eivind; Vedul-Kjelsås, Einar. (2019) Aerobic interval training in standard treatment of out-patients with schizophrenia - a randomized controlled trial. Acta Psychiatrica Scandinavica. volum 140 (6).
  Vitenskapelig artikkel
• Brobakken, Mathias F; Nygård, Mona; Taylor, Joshua L.; Guzey, Ismail Cuneyt; Morken, Gunnar; Reitan, Solveig Merete Klæbo; Heggelund, Jørn; Vedul-Kjelsås, Einar; Wang, Eivind. (2019) A comprehensive cardiovascular disease risk profile in patients with schizophrenia. Scandinavian Journal of Medicine & Science in Sports. volum 29 (4).
  Vitenskapelig artikkel
• Lane, Jacqueline M.; Jones, Samuel E.; Dashti, Hassan S.; Wood, Andrew R.; Aragam, Krishna G; van Hees, Vincent T.; Strand, Linn B; Winsvold, Bendik K S; Wang, Heming; Bowden, Jack; Song, Yanwei; Patel, Krunal; Anderson, Simon G.; Beaumont, Robin N.; Bechtold, David A.; Cade, Brian E.; Haas, Mary; Kathiresan, Sekar; Little, Max A.. (2019) Biological and clinical insights from genetics of insomnia symptoms. Nature Genetics. volum 51 (3).
  Vitenskapelig artikkel
• Langsrud, Knut; Vaaler, Arne; Morken, Gunnar; Kallestad, Håvard; Almvik, Roger; Palmstierna, Tom Krisman Kule; Guzey, Ismail Cuneyt. (2019) The predictive properties of violence risk instruments may increase by adding items assessing sleep. Frontiers in Psychiatry. volum 10:323 (MAY).
  Vitenskapelig artikkel
• Nygård, Mona; Brobakken, Mathias F; Roel, Ragnhild Bjerkem; Taylor, Joshua L.; Reitan, Solveig Merete Klæbo; Guzey, Ismail Cuneyt; Morken, Gunnar; Vedul-Kjelsås, Einar; Wang, Eivind; Heggelund, Jørn. (2019) Patients with schizophrenia have impaired muscle force-generating capacity and functional performance. Scandinavian Journal of Medicine & Science in Sports. volum 29 (12).
  Vitenskapelig artikkel

2018

• Grøtte, Torun; Hansen, Bjarne; Haseth, Svein; Vogel, Patrick A.; Guzey, Ismail Cuneyt; Solem, Stian. (2018) Three-week inpatient treatment of obsessive-compulsive disorder: A 6-month follow-up study. Frontiers in Psychology. volum 9:620.
  Vitenskapelig artikkel
• Özbey, Gül; Yücel, Berna; Bodur, Nurdan Eren; Taycan, Serap Erdoǧan; Arslan, Tayyibe; Cerit, Nazan; Yüksel, Nevzat; Guzey, Ismail Cuneyt; Uluoǧlu, Canan. (2018) Serum N-desmethylcitalopram concentrations are associated with the clinical response to citalopram of patients with major depression. Psychiatry Investigation. volum 15 (3).
  Vitenskapelig artikkel

2017

• Brobakken, Mathias F; Nygård, Mona; Guzey, Ismail Cuneyt; Morken, Gunnar; Wang, Eivind; Heggelund, Jørn; Vedul-Kjelsås, Einar. (2017) Cardiovascular Disease Risk Profile in Patients with Schizophrenia. Medicine & Science in Sports & Exercise. volum 49.
  Sammendrag/abstract
• Hygen, Beate Wold; Belsky, Jay; Li, Zhi; Stenseng, Frode; Guzey, Ismail Cuneyt; Wichstrøm, Lars. (2017) Change in parenting, change in student-teacher relationships, and oxytocin receptor gene (OXTR): Testing a Gene-×-Environment (G×E) Hypothesis in Two Samples. Developmental Psychology. volum 53 (7).
  Vitenskapelig artikkel
• Myers, Samuel G.; Grøtte, Torun; Haseth, Svein; Guzey, Ismail Cuneyt; Hansen, Bjarne; Vogel, Patrick A.; Solem, Stian. (2017) The role of metacognitive beliefs about thoughts and rituals: a test of the metacognitive model of obsessive-compulsive disorder in a clinical sample. Journal of Obsessive-Compulsive and Related Disorders. volum 13.
  Vitenskapelig artikkel
• Nygård, Mona; Brobakken, Mathias F; Guzey, Ismail Cuneyt; Morken, Gunnar; Vedul-Kjelsås, Einar; Wang, Eivind; Heggelund, Jørn. (2017) Strength Training In Patients With Schizophrenia: Effects On Muscle Force Generating Capacity. Medicine & Science in Sports & Exercise. volum 49.
  Sammendrag/abstract
• Ozbey, Gul; Celikel, Feryal Cam; Cumurcu, Birgul Elbozan; Kan, Derya; Yucel, Berna; Hasbek, Ekrem; Percin, Ferda; Guzey, Ismail Cuneyt; Uluoglu, Canan. (2017) Influence of ABCB1 polymorphisms and serum concentrations on venlafaxine response in patients with major depressive disorder. Nordic Journal of Psychiatry. volum 71 (3).
  Vitenskapelig artikkel
• Stenseng, Frode; Li, Zhi; Belsky, Jay; Hygen, Beate Wold; Skalicka, Vera; Guzey, Ismail Cuneyt; Wichstrøm, Lars. (2017) Peer problems and hyperactivity-impulsivity among Norwegian and American Children – The role of 5-HTTLPR. Child Development.
  Vitenskapelig artikkel

2016

• Grøtte, Torun; Solem, Stian; Myers, Samuel G.; Hjemdal, Odin; Vogel, Patrick A.; Guzey, Ismail Cuneyt; Hansen, Bjarne; Nordahl, Hans Morten; Fisher, Peter Leonard. (2016) Metacognitions in obsessive-compulsive disorder: A psychometric study of the Metacognitions Questionnaire-30. Journal of Obsessive-Compulsive and Related Disorders. volum 11.
  Vitenskapelig artikkel
• Iversen, Valentina Cabral; Aasen, Ola Håvard Forberg; Guzey, Ismail Cuneyt; Helvik, Anne-Sofie. (2016) Incidence of violent behavior among patients in psychiatric intensive care units. European Journal of Psychiatry. volum 30 (1).
  Vitenskapelig artikkel
• Sallaup, Torill Vassli; Vaaler, Arne; Iversen, Valentina Cabral; Guzey, Ismail Cuneyt. (2016) Challenges in detecting and diagnosing substance use in women in the acute psychiatric department: A naturalistic cohort study. BMC Psychiatry. volum 16 (1).
  Vitenskapelig artikkel
• Steinsbekk, Silje; Belsky, Daniel; Guzey, Ismail Cuneyt; Wardle, Jane; Wichstrøm, Lars. (2016) Polygenic risk, appetite traits, and weight gain in middle childhood:A longitudinal study. JAMA pediatrics. volum 170 (2).
  Vitenskapelig artikkel

2015

• Hygen, Beate Wold; Belsky, Jay; Stenseng, Frode; Lydersen, Stian; Guzey, Ismail Cuneyt; Wichstrøm, Lars. (2015) Child exposure to serious life events, COMT, and aggression: Testing differential susceptibility theory. Developmental Psychology. volum 51 (8).
  Vitenskapelig artikkel
• Tetlie Eik-Nes, Trine; Romild, Ulla Kristina; Guzey, Ismail Cuneyt; Holmen, Turid Lingaas; Micali, Nadia; Bjørnelv, Sigrid. (2015) Women's weight and disordered eating in a large Norwegian community sample: the Nord-Trøndelag Health Study (HUNT). BMJ Open. volum 5 (10).
  Vitenskapelig artikkel

2014

• Grøtte, Torun; Solem, Stian; Vogel, Patrick A.; Guzey, Ismail Cuneyt; Hansen, Bjarne; Myers, Samuel G.. (2014) Metacognition, responsibility, and perfectionism in obsessive-compulsive disorder. Cognitive Therapy and Research. volum 39 (1).
  Vitenskapelig artikkel
• Hygen, Beate Wold; Guzey, Ismail Cuneyt; Belsky, Jay; Berg-Nielsen, Turid Suzanne; Wichstrøm, Lars. (2014) Catechol-O-methyltransferase Val158Met genotype moderates the effect of disorganized attachment on social development in young children. Development and Psychopathology. volum 26 (4pt1).
  Vitenskapelig artikkel
• Løvseth, Lise T; Guzey, Ismail Cuneyt; Fridner, Ann; Minucci, Daria; Linaker, Olav Morten. (2014) Age and gender differences in authorship among university hospital physicians in Sweden, Norway and Italy (The HOUPE study). British Journal of Medicine and Medical Research. volum 4 (27).
  Vitenskapelig artikkel
• Ozbey, Gul; Yucel, Berna; Taycan, Serap E.; Kan, Derya; Bodur, Nurdan E.; Arslan, Tayyibe; Percin, Ferda; Yuksel, Nevzat; Guzey, Ismail Cuneyt; Uluoglu, Canan. (2014) ABCB1 C3435T polymorphism is associated with susceptibility to major depression, but not with a clinical response to citalopram in a Turkish population. Pharmacological Reports. volum 66 (2).
  Vitenskapelig artikkel
• Stenmark, Håkon Inge; Guzey, Ismail Cuneyt; Elbert, Thomas; Holen, Are. (2014) Gender and offender status predicting treatment success in refugees and asylum seekers with PTSD. European Journal of Psychotraumatology. volum 5.
  Vitenskapelig artikkel

2012

• Fløvig, John Chr.; Morken, Gunnar; Guzey, Ismail Cuneyt; Vaaler, Arne. (2012) Pharmacological treatment and adherence one week prior to acute psychiatric admissions. Nordic Journal of Psychiatry. volum 66 (3).
  Vitenskapelig artikkel
• Güzey, Cüneyt; Allard, P; Brännström, Thomas; Spigset, Olav. (2012) Radioligand Binding to Brain Dopamine and Serotonin Receptors and Transporters in Parkinson's Disease: Relation to Gene Polymorphisms. International Journal of Neuroscience. volum 122 (3).
  Vitenskapelig artikkel
• Guzey, Ismail Cuneyt; Vaaler, Arne; Malt, Ulrik Fredrik; Andreassen, Ole Andreas; Morken, Gunnar. (2012) Variations in CYP2D6 metabolism in bipolar disorder: a study on patients hospitalized in emergency psychiatric ward. Bipolar Disorders. volum 14.
  Sammendrag/abstract

2011

• Guzey, Ismail Cuneyt. (2011) Leter i genene etter tvangslidelser. Adresseavisen.
  Anmeldelse
• Guzey, Ismail Cuneyt; Lopez Rodriguez, Rosario; Myhre, Ronny; Spigset, Olav. (2011) Allele and Genotype Frequencies of Serotonin and Dopamine Transporter and Receptor Polymorphisms in a Norwegian Population. Genetic Testing and Molecular Biomarkers. volum 15 (7-8).
  Vitenskapelig artikkel

2008

• Guzey, Ismail Cuneyt; Spigset, Olav. (2008) Dopamine and serotonin receptor and transporter gene polymorphisms and extrapyramidal symptoms. Studies in Parkinson's disease and in patient treated with antipsychotic or antidepressant drugs. 2008. ISBN 978-82-471-1354-7.
  Doktorgradsavhandling

2007

• Guzey, Ismail Cuneyt; Scordo, MG; Spina, E; Landsem, Veslemøy Malm; Spigset, Olav. (2007) Antipsychotic-induced extrapyramidal symptoms in patients with schizophrenia: associations with dopamine and serotonin receptor and transporter polymorphisms. European Journal of Clinical Pharmacology. volum 63.
  Vitenskapelig artikkel

2006

• Hedenmalm, Karin; Güzey, Ismail Cüneyt; Dahl, ML; Yue, QY; Spigset, Olav. (2006) Risk factors for extrapyramidal symptoms during treatment with selective serotonin reuptake inhibitors, including cytochrome P-450 enzyme, and serotonin and dopamine transporter and receptor polymorphisms. Journal of Clinical Psychopharmacology. volum 26.
  Vitenskapelig artikkel
• Güzey, Ismail Cüneyt; Spigset, Olav. (2006) Low serum concentrations of paroxetine in CYP2D6 ultrarapid metabolizers. Journal of Clinical Psychopharmacology. volum 26.
  Leserinnlegg

2004

• Güzey, Cüneyt; Spigset, Olav. (2004) Genotyping as a tool to predict adverse drug reactions. Current Topics in Medicinal Chemistry. volum 4.
  Vitenskapelig oversiktsartikkel/review

2000

• Güzey, Cüneyt; Aamo, Trond; Spigset, Olav. (2000) Risperidone metabolism and the impact of being a cytochrome P450 2D6 ultrarapid metabolizer. Journal of Clinical Psychiatry.
  Vitenskapelig artikkel

1999

• Hadidi, H; Güzey, IG; Idle, JR. (1999) Farmacogenetics and toxicological consequenses of human drug oxidation and reduction. General and applied toxicology.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel