2024

• Haseth, Svein; Grøtte, Torun; Hunstad, Erlend; Güzey, Ismail Cüneyt; Solem, Stian. (2024) Metacognitive therapy for body dysmorphic disorder: A consecutive case series. Journal of Cognitive Psychotherapy
  Academic article

2023

• Nygård, Mona; Brobakken, Mathias Forsberg; Lydersen, Stian; Güzey, Ismail Cüneyt; Morken, Gunnar; Heggelund, Jørn. (2023) Strength training integrated in long term collaborative care of patients with schizophrenia. Schizophrenia Research
  Academic article

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
  Academic article
• Melby, Katrine; Nygård, Mona; Brobakken, Mathias Forsberg; Gråwe, Rolf W.; Guzey, Ismail Cuneyt; Reitan, Solveig Merete Klæbo. (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 (IJERPH)
  Academic article

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)
  Academic article
• Brobakken, Mathias Forsberg; Nygård, Mona; Guzey, Ismail Cuneyt; Morken, Gunnar; Reitan, Solveig Merete Klæbo; Heggelund, Jørn. (2020) One‐year aerobic interval training in outpatients with schizophrenia : a randomized controlled trial. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Nygård, Mona; Brobakken, Mathias Forsberg; Taylor, Joshua L.; Reitan, Solveig Merete Klæbo; Guzey, Ismail Cuneyt; Morken, Gunnar. (2020) Strength training restores force‐generating capacity in patients with schizophrenia. Scandinavian Journal of Medicine & Science in Sports
  Academic article

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
  Academic article
• Lane, Jacqueline M.; Jones, Samuel E.; Dashti, Hassan S.; Wood, Andrew R.; Aragam, Krishna G; van Hees, Vincent T.. (2019) Biological and clinical insights from genetics of insomnia symptoms. Nature Genetics
  Academic article
• Brobakken, Mathias F; Nygård, Mona; Guzey, Ismail Cuneyt; Morken, Gunnar; Reitan, Solveig Merete Klæbo; Heggelund, Jørn. (2019) Aerobic interval training in standard treatment of out-patients with schizophrenia - a randomized controlled trial. Acta Psychiatrica Scandinavica
  Academic article
• Nygård, Mona; Brobakken, Mathias F; Roel, Ragnhild Bjerkem; Taylor, Joshua L.; Reitan, Solveig Merete Klæbo; Guzey, Ismail Cuneyt. (2019) Patients with schizophrenia have impaired muscle force-generating capacity and functional performance. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Langsrud, Knut; Vaaler, Arne; Morken, Gunnar; Kallestad, Håvard; Almvik, Roger; Palmstierna, Tom Krisman Kule. (2019) The predictive properties of violence risk instruments may increase by adding items assessing sleep. Frontiers in Psychiatry
  Academic article
• Brobakken, Mathias F; Nygård, Mona; Taylor, Joshua L.; Guzey, Ismail Cuneyt; Morken, Gunnar; Reitan, Solveig Merete Klæbo. (2019) A comprehensive cardiovascular disease risk profile in patients with schizophrenia. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• 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
  Academic article
• 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
  Academic article

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
  Academic article
• Özbey, Gül; Yücel, Berna; Bodur, Nurdan Eren; Taycan, Serap Erdoǧan; Arslan, Tayyibe; Cerit, Nazan. (2018) Serum N-desmethylcitalopram concentrations are associated with the clinical response to citalopram of patients with major depression. Psychiatry Investigation
  Academic article

2017

• Ozbey, Gul; Celikel, Feryal Cam; Cumurcu, Birgul Elbozan; Kan, Derya; Yucel, Berna; Hasbek, Ekrem. (2017) Influence of ABCB1 polymorphisms and serum concentrations on venlafaxine response in patients with major depressive disorder. Nordic Journal of Psychiatry
  Academic article
• Stenseng, Frode; Li, Zhi; Belsky, Jay; Hygen, Beate Wold; Skalicka, Vera; Guzey, Ismail Cuneyt. (2017) Peer problems and hyperactivity-impulsivity among Norwegian and American Children – The role of 5-HTTLPR. Child Development
  Academic article
• 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
  Academic article
• Myers, Samuel G.; Grøtte, Torun; Haseth, Svein; Guzey, Ismail Cuneyt; Hansen, Bjarne; Vogel, Patrick A.. (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
  Academic article
• Brobakken, Mathias F; Nygård, Mona; Guzey, Ismail Cuneyt; Morken, Gunnar; Wang, Eivind; Heggelund, Jørn. (2017) Cardiovascular Disease Risk Profile in Patients with Schizophrenia. Medicine & Science in Sports & Exercise
  Abstract
• Nygård, Mona; Brobakken, Mathias F; Guzey, Ismail Cuneyt; Morken, Gunnar; Vedul-Kjelsås, Einar; Wang, Eivind. (2017) Strength Training In Patients With Schizophrenia: Effects On Muscle Force Generating Capacity. Medicine & Science in Sports & Exercise
  Abstract

2016

• 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
  Academic article
• 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
  Academic article
• Grøtte, Torun; Solem, Stian; Myers, Samuel G.; Hjemdal, Odin; Vogel, Patrick A.; Guzey, Ismail Cuneyt. (2016) Metacognitions in obsessive-compulsive disorder: A psychometric study of the Metacognitions Questionnaire-30. Journal of Obsessive-Compulsive and Related Disorders
  Academic article
• 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
  Academic article

2015

• 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
  Academic article
• 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
  Academic article

2014

• 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
  Academic article
• 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
  Academic article
• 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
  Academic article
• Ozbey, Gul; Yucel, Berna; Taycan, Serap E.; Kan, Derya; Bodur, Nurdan E.; Arslan, Tayyibe. (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
  Academic article
• 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
  Academic article

2012

• 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
  Abstract
• 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
  Academic article
• 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
  Academic article

2011

• Guzey, Ismail Cuneyt. (2011) Leter i genene etter tvangslidelser. Adresseavisen
  Book review
• 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
  Academic article

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. Tapir Uttrykk
  Doctoral dissertation

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
  Academic article

2006

• Güzey, Ismail Cüneyt; Spigset, Olav. (2006) Low serum concentrations of paroxetine in CYP2D6 ultrarapid metabolizers. Journal of Clinical Psychopharmacology
  Reader opinion piece
• 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
  Academic article

2004

• Güzey, Cüneyt; Spigset, Olav. (2004) Genotyping as a tool to predict adverse drug reactions. Current Topics in Medicinal Chemistry
  Academic literature 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
  Academic article

1999

• Hadidi, H; Güzey, IG; Idle, JR. (1999) Farmacogenetics and toxicological consequenses of human drug oxidation and reduction.
  Academic chapter/article/Conference paper