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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04868nam a2200349 4500 | |
| 001 | oai:gup.ub.gu.se/298120 | |
| 003 | SwePub | |
| 008 | 240410s2020 | |||||||||||000 ||eng| | |
| 020 | a 9789180090797 | |
| 024 | 7 | a 2077/661962 hdl |
| 024 | 7 | a https://gup.ub.gu.se/publication/2981202 URI |
| 040 | a (SwePub)gu | |
| 041 | a eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a vet2 swepub-contenttype |
| 072 | 7 | a dok2 swepub-publicationtype |
| 100 | 1 | a Dinkler, Lisau Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry4 aut0 (Swepub:gu)xdinli |
| 245 | 1 0 | a Restrictive eating disorders: aetiological, epidemiological and neurodevelopmental aspects |
| 264 | 1 | b Göteborgs universitet,c 2020 |
| 520 | a Restrictive Eating Disorders (EDs), including Avoidant/Restrictive Food Intake Disorder (ARFID) and Anorexia Nervosa (AN), are characterised by severely restricted food intake, commonly leading to substantial weight loss and significantly low weight, and the need for nutritional supplementation. The overarching aim of this thesis was to elucidate specific aetiological, epidemiological, and neurodevelopmental aspects of ARFID and AN, including the genetic aetiology of AN, the link between AN and autism spectrum disorder (ASD), the prevalence of ARFID, and the comorbidity of ARFID with neurodevelopmental disorders (NDDs). Studies I and II were based on the Child and Adolescent Twin Study in Sweden, making use of parent- and/or child-reported survey data and clinical diagnoses from the Swedish National Patient Register. Using twin modelling, Study I examined whether adolescent-onset EDs (excluding ARFID) can be viewed aetiologically as the extreme manifestation of continuous variation in ED traits in the population (e.g., drive for thinness). Genetic factors influencing continuous variation of ED traits were less associated with AN than with other EDs, suggesting that EDs other than AN are on an aetiological continuum with ED traits, while AN is more genetically demarcated. Considering the previously observed overrepresentation of autistic traits in individuals with AN, Study II prospectively examined whether autistic traits in AN are already present in childhood. Individuals later diagnosed with AN did not show elevated autistic traits at age 9. At age 18, autistic traits were elevated in girls with acute AN, but not in girls with a history of AN. Potential elevations of autistic traits in childhood might have been concealed by coping strategies and the different/less overt female ASD phenotype. Using a novel experimental design, Study III examined the ability and strategy to recognise facial emotional expressions—often impaired in ASD—in women recovered from AN who were part of the 30-year follow-up in a Swedish case-control study. Women recovered from AN without ASD did not have deficits in emotion recognition, suggesting that impairments might be limited to the acute AN phase and/or the ASD subgroup. Studies IV and V were based on a parent-reported screening tool for ARFID developed by our group, applied in a sub-cohort of 4-7-year-old children from the Japan Environment and Children's Study. Study IV aimed to estimate the prevalence of ARFID and found a point prevalence of ~1%. ARFID was equally common in boys and girls. Using ICD-11 diagnostic criteria resulted in a higher prevalence than using DSM-5 criteria. Taking advantage of additional parent-reported data, Study V found that children with ARFID had an elevated risk of a broadly atypical/delayed neurodevelopment and a 3-4 times increased likelihood of being diagnosed with NDDs. In summary, this thesis showed that AN might have a different aetiology than other adolescent-onset EDs, and that prospective studies are important to help disentangle the relationship between AN and ASD. Contrary to AN, ARFID is associated with increased risk for a range of neurodevelopmental problems/NDDs. Future studies should investigate whether ARFID in young children might be more strongly associated with NDDs than with later-onset EDs. | |
| 650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Psykiatri0 (SwePub)302152 hsv//swe |
| 650 | 7 | a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Psychiatry0 (SwePub)302152 hsv//eng |
| 653 | a Eating Disorders | |
| 653 | a Anorexia Nervosa | |
| 653 | a Avoidant/Restrictive Food Intake Disorder | |
| 653 | a Neurodevelopmental Disorders | |
| 653 | a Twin study | |
| 653 | a Emotion recognition | |
| 653 | a Eye tracking | |
| 653 | a Prevalence | |
| 710 | 2 | a Göteborgs universitetb Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi4 org |
| 856 | 4 8 | u https://gup.ub.gu.se/publication/298120 |
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