Cognitive Processes Study in Obese Women With and Without Eating Disorders
Hyperalimentation and ObesityThe P300 is one of the cognitive wave of the Event-Related Potential (ERP) that is used to investigate the cognitive process. The P300 component are accepted as electro-physiological markers of neuropsychiatric disorders like alcoholism or drug addiction. Recent scientific data suggest that eating disorders, leading to weight gain and obesity, will be similar of those of drug addiction: it is the incentive sensitization theory that implicates the dopaminergic reward system. The aim of this cross-sectional study is to investigate the alteration of P300 auditory ERP in obese women with eating disorders in comparison with obese and lean women without eating disorders.
fMRI and Ghlrein in Obesity and Binge Eating Disorder
ObesityBinge Eating DisorderBinge Eating Disorder (BED) may be associated with he development of obesity. However, the pathogenesis of BED is currently unclear, thus making the development of treatment and prevention strategies for BED difficult. Differences in the mechanisms regulating food intake may go some way to reveal potential mechanisms for BED.The purpose of this study is to investigate the responses of key gut-derived hormones that are associated with the regulation of food intake and functional brain activity to food cues using fMRI in BED patients and weight matched controls.
Effect of Early Feeding of Breast Milk
Neonatal SEPSISWeight Gain1 moreBreast milk is an extremely complex and highly variable biofliud that has evolved to nourish infants and protect them from disease whilst their own immune system matures. The composition of human breast milk changes in response to many factors, matching the infants requirement according to its age and other characteristics.
Adaptation and Validation of the Clinical Assessment Inventory for Eating Disorders (CIA)
Eating DisordersThe Clinical Impairment Assessment (CIA) assesses psychosocial impairment secondary to an eating disorder. The aim of this study was to create and validate a Spanish-language version of the CIA. Using a forward-backward translation methodology, we translated the CIA into Spanish and evaluated its psychometric characteristics in a clinical sample of 178 ED patients. Cronbach's alpha values, confirmatory factor analysis (CFA), and correlations between the CIA and the Eating Attitudes Test-12 and the Health-Related Quality of Life in ED-short form questionnaires evaluated the reliability, construct validity, and convergent validity, respectively. Known-groups validity was also studied comparing the CIA according to different groups; responsiveness was assessed by means of effect sizes.
Nasogastric Tube Securement Comparison Study
Failure to ThriveNutritional Deficiency3 moreThis study evaluates the use of tape to secure nasogastric tubes compared to securement with a nasal bridle device.
Changes in Dopamine Levels Before and After Weight Restoration in People With Anorexia Nervosa
Eating DisordersThis study will use positron emission tomography imaging to investigate changes in dopamine systems in people with anorexia nervosa before and after weight restoration.
Inhibitory Control and Eating Disorders
Anorexia NervosaBulimia Nervosa1 moreExecutive functions are part of the high-level cognitive processes essential to the proper functioning of human cognition. They consist mainly of flexibility, updating and inhibition. Some studies have shown a correlation between executive disorders (impaired executive function) and psychiatric disorders such as obsessive-compulsive disorder or phobias. These executive disorders are related to dysfunctions of the fronto-striatal loops. In addition, other studies have investigated the link that may exist between eating disorders such as anorexia or bulimia nervosa and executive functioning. Anorexia nervosa, bulimia nervosa and binge eating disorders are eating disorders characterized by a dysfunction in food intake with restriction of food or compulsions as well as strong concerns about the body schema. Concerning the executive functioning, these studies highlight a lack of cognitive flexibility for patients with anorexia nervosa and bulimia nervosa but also dysfunctions depending on the type of pathology (anorexia nervosa or bulimia nervosa). These studies also highlight the beneficial effects of cognitive remediation on people with eating disorders. However, the investigation of the inhibitory control has not yet been specifically studied. Moreover, since eating disorders are structurally different, a comparison between several pathologies would be interesting to consider. The aim of this study is to determine if a dysfunction of inhibitory control can be highlighted in people with eating disorders. This study would also allow further researches about cognitive remediation suitable for the specific difficulties encountered in these diseases.
Interoceptive Nutritional Processing in Healthy Participants and Patients With Binge-Eating-Disorder...
Food HabitsBinge-Eating DisorderBinge-Eating-Disorder (BED) is a common eating disorder characterized by recurring episodes of uncontrollable eating. The underlying neural mechanisms are largely unknown. However, dysfunctional hormonal satiety signaling as well as dysfunctional neural processing of food cues are discussed as possible casual factors in the development and maintenance of this disorder. Additional research is needed to specify the exact contribution of these observations and how they interact with each other. Accordingly, the current study plans to investigate metabolic gut-brain signaling to better understand the underlying causes of abnormal eating behavior. To this end, 25 healthy normal weight control participants as well as 25 patients with BED will be recruited. The responsivity of the hypothalamus (i.e., the core region of homeostatic control) and its interaction with the mesocorticolimbic reward system will be assessed by applying a single-blind, randomized, crossover design of intravenous infusion of glucose or NaCl. This approach allows the study of gut-brain signaling to the hypothalamus and the reward system by controlling for sensory aspects of food intake (sight, smell, and taste). The interaction between the hypothalamus and the mesocorticolimbic reward system will be investigated using an effective connectivity analysis. FMRI with high spatial resolution and with an optimized protocol for the investigation of the hypothalamus and the mesocorticolimbic reward system will be employed. A better understanding of the underlying psychobiological mechanisms of BED is a fundamental requirement for the development of improved prevention and treatment strategies
Genetic Correlates of Wasting: a Pilot Study With Children Attending a Tertiary Feeding Clinic
UndernutritionEating Disorders1 moreThis is a pilot study of children attending the Glasgow feeding clinic (GFC) which looks after a range of children with severe feeding problems who commonly have low appetite and extreme thinness. The investigators want to find out if these children are more likely to carry genetic markers of thinness.
MUMMIBODIES. Eating Disorders, Pregnancy and Post Partum Period.
Mental Health DisorderEating Disorders2 moreMUMMIEBODIES is a research study when women with eating disorders encounter pregnancy, childbirth and postpartum. These are some condensed months that represent major challenges for this group. There are both a scientific and clinical basis for the mother's mental health to influence care and interaction with the child. In the case of eating disorders, there is also a risk of harmful consequences for the fetus as well as for more complicated pregnancies and births. This is a very important field of knowledge, but also a field about which there is far too little scientific knowledge. There is too little scientific knowledge about how women with eating disorders physically and mentally relate to their bodies and food during and after pregnancy. There is a great need for research that promotes expertise in how to help and meet women with eating disorders in these important phases of life. The aim of the study is to bring out the users' experiences. The investigators interview face-to-face pregnant women and mothers with eating disorders about their subjective experiences both during pregnancy and during childbirth. Recruitment of participants will be via health stations. The investigators will identify the course, experiences and solutions when women with eating disorders encounter pregnancy, childbirth and postpartum. The investigators focus on three themes: 1) experience of course and change, 2) experience of emotional, cognitive and relational core experiences, and 3) women's own perceptions of what is the best help. The three themes have in common that they are fundamental for later development of help for this vulnerable group. The investigators have a clear idea that some of the best preventive work can be done before life really starts.