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Interoceptive Nutritional Processing in Healthy Participants and Patients With Binge-Eating-Disorder — BAG-C  

Binge-Eating Disorder Clinical Trial

Official title:
Investigating the Neural Correlates of Interoceptive Nutritional Processing Using fMRI in Healthy Participants and Patients With Binge-Eating-Disorder

Clinical Trial Summary

Binge-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

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04115852
Study type Observational
Source University of Heidelberg Medical Center
Contact
Status Completed
Phase
Start date September 1, 2019
Completion date December 1, 2022
View Details
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