Browsing NTNU Open by Author "Guzey, Ismail Cuneyt"
Now showing items 1-15 of 15
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Catechol-O-methyltransferase Val158Met genotype moderates the effect of disorganized attachment on social development in young children
Hygen, Beate Wold; Guzey, Ismail Cuneyt; Belsky, Jay; Berg-Nielsen, Turid Suzanne; Wichstrøm, Lars (Journal article; Peer reviewed, 2014)Children with histories of disorganized attachment exhibit diverse problems, possibly because disorganization takes at least two distinctive forms as children age: controlling–punitive and controlling–caregiving. This ... -
Challenges in detecting and diagnosing substance use in women in the acute psychiatric department: A naturalistic cohort study
Iversen, Valentina Cabral; Guzey, Ismail Cuneyt; Sallaup, Torill Vassli; Vaaler, Arne (Journal article; Peer reviewed, 2016)Background: This study examines sex differences in substance use and substance use disorder in the acute psychiatric department, and possible interactions between sex and clinical and social factors associated with this ... -
Change in parenting, change in student-teacher relationships, and oxytocin receptor gene (OXTR): Testing a Gene-×-Environment (G×E) Hypothesis in Two Samples
Hygen, Beate Wold; Belsky, Jay; Li, Zhi; Stenseng, Frode; Guzey, Ismail Cuneyt; Wichstrøm, Lars (Journal article; Peer reviewed, 2017)Prior research suggests that parenting affects children’s relationships, including those with teachers, although there is variation across individuals in such effects. Given evidence suggesting that oxytocin may be ... -
Child exposure to serious life events, COMT, and aggression: Testing differential susceptibility theory
Hygen, Beate Wold; Belsky, Jay; Stenseng, Frode; Lydersen, Stian; Guzey, Ismail Cuneyt; Wichstrøm, Lars (Journal article; Peer reviewed, 2015)Both genetic and environmental factors contribute to individual differences in aggression. Catechol-O-methyltransferase Val158Met (COMT), a common, functional polymorphism, has been implicated in aggression and aggression ... -
Epidemiological differences in levels of depressive signs among nocturnal symptoms of insomnia; results from the HUNT study
Bragantini, Daniela; Sivertsen, Børge; Gehrman, Philip; Lydersen, Stian; Guzey, Ismail Cuneyt (Peer reviewed; Journal article, 2020)Background Insomnia is a sleep disorder characterized by multiple nocturnal symptoms (sleep onset, maintenance and terminal insomnia). However, these symptoms are assumed to have the same weight in the diagnosis and ... -
Gender and offender status predicting treatment success in refugees and asylum seekers with PTSD
Stenmark, Håkon Inge; Guzey, Ismail Cuneyt; Elbert, Thomas; Holen, Are (Journal article; Peer reviewed, 2014)Background Current knowledge is limited regarding patient characteristics related to treatment outcome of posttraumatic stress disorders (PTSD) in refugees and asylum seekers. Objective Gender, torture status, ... -
Genetic polymorphisms associated with sleep-related phenotypes; relationships with individual nocturnal symptoms of insomnia in the HUNT study
Bragantini, Daniela; Sivertsen, Børge; Gehrman, Philip; Lydersen, Stian; Guzey, Ismail Cuneyt (Journal article; Peer reviewed, 2019)Background In recent years, several GWAS (genome wide association studies) of sleep-related traits have identified a number of SNPs (single nucleotides polymorphism) but their relationships with symptoms of insomnia are ... -
Individual differences in children’s social development. A gene by environment (GXE) study
Hygen, Beate Wold (Doctoral theses at NTNU;2017:335, Doctoral thesis, 2017)Summary: Children may be differently affected by environmental influences. The aim of the current thesis was to examine how children’s genotype interacts with various environmental factors in the development of social ... -
Kynurenine metabolites and ratios differ between chronic fatigue syndrome, fibromyalgia, and healthy controls
Groven, Nina; Reitan, Solveig Merete Klæbo; Fors, Egil Andreas; Guzey, Ismail Cuneyt (Peer reviewed; Journal article, 2021)Background: There is growing evidence that the kynurenine pathway is involved in the pathology of diseases related to the central nervous system (CNS), because of the neuroprotective or neurotoxic properties of certain ... -
Peer problems and hyperactivity-impulsivity among Norwegian and American Children – The role of 5-HTTLPR.
Stenseng, Frode; Li, Zhi; Belsky, Jay; Hygen, Beate Wold; Skalicka, Vera; Guzey, Ismail Cuneyt; Wichstrøm, Lars (Journal article; Peer reviewed, 2017)Peer problems are linked to attention deficit hyperactivity disorder (ADHD) symptoms and the serotonin system is thought to be involved in ADHD‐related behavior. Hence, from a Gene × Environment perspective, the serotonin ... -
Polygenic risk, appetite traits, and weight gain in middle childhood:A longitudinal study
Steinsbekk, Silje; Belsky, Daniel; Guzey, Ismail Cuneyt; Wardle, Jane; Wichstrøm, Lars (Journal article; Peer reviewed, 2016)Importance Genome-wide association studies have identified genetic risks for obesity. These genetic risks influence development of obesity partly by accelerating weight gain in childhood. Research is needed to identify ... -
Test-retest reliability of the patient activation measure-13 in adults with substance use disorders and schizophrenia spectrum disorders
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 (Peer reviewed; Journal article, 2021)Patient Activation Measure-13 (PAM-13) is a valid and widely used questionnaire that assess an individual’s knowledge, confidence, and skills for self-management of their chronic illness. Although there is some evidence ... -
The Predictive Properties of Violence Risk Instruments May Increase by Adding Items Assessing Sleep.
Langsrud, Knut; Vaaler, Arne; Morken, Gunnar; Kallestad, Håvard; Almvik, Roger; Palmstierna, Tom Krisman Kule; Guzey, Ismail Cuneyt (Journal article; Peer reviewed, 2019)Background: The psychometric instruments developed for short-term prediction of violence in psychiatric inpatients do not include variables assessing sleep. Disturbances in sleep may precede aggression in this setting. We ... -
Three-week inpatient treatment of obsessive-compulsive disorder: A six-month follow-up study
Grøtte, Torun; Hansen, Bjarne; Haseth, Svein; Vogel, Patrick A.; Guzey, Ismail Cuneyt; Solem, Stian (Journal article; Peer reviewed, 2018)Background: Specialized inpatient or residential treatment might be an alternative treatment approach for patients with obsessive-compulsive disorder (OCD) that do not respond satisfactorily to the standard outpatient ... -
Women's weight and disordered eating in a large Norwegian community sample: the Nord-Trøndelag Health Study (HUNT)
Tetlie Eik-Nes, Trine; Romild, Ulla Kristina; Guzey, Ismail Cuneyt; Holmen, Turid Lingaas; Micali, Nadia; Bjørnelv, Sigrid (Journal article; Peer reviewed, 2015)Objectives: An increasing part of the population is affected by disordered eating (DE) even though they do not meet the full eating disorder (ED) criteria. To improve treatment in the range of weight-related disorders, ...