100 kg more or less, still the same person (and disorder): From overweight to underweight—exacerbation of an eating disorder after bariatric surgery

Lautenbach, Anne; Kulinna, Ulrike; Löwe, Bernd; Rose, Matthias

doi:10.1002/eat.22081

Cited by 5 publications

(2 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, the RYGB rats with the least weight-loss (25th percentile, Q1) responded to the surgery with the least weight loss compared to the remaining 75% of rats in this group. Following RYGB, whereas most patients lose a substantial amount of (60–70%) excess body weight and voluntarily restrict consumption of calorie-dense, highly palatable foods, and report fewer cravings [ 39 , 46 – 49 ]; about one fifth of the patients [ 50 ] lose less weight and/or regain their initial weight loss within five years after surgery. It is hypothesized that the RYGB patients with a prior history of binge eating may be more susceptible to poor surgical outcome [ 51 ].…”

Section: Discussionmentioning

confidence: 99%

Roux-en-Y Gastric Bypass Alters Brain Activity in Regions that Underlie Reward and Taste Perception

et al. 2015

View full text Add to dashboard Cite

BackgroundRoux-en-Y gastric bypass (RYGB) surgery is a very effective bariatric procedure to achieve significant and sustained weight loss, yet little is known about the procedure’s impact on the brain. This study examined the effects of RYGB on the brain’s response to the anticipation of highly palatable versus regular food.MethodsHigh fat diet-induced obese rats underwent RYGB or sham operation and were then tested for conditioned place preference (CPP) for the bacon-paired chamber, relative to the chow-paired chamber. After CPP, animals were placed in either chamber without the food stimulus, and brain-glucose metabolism (BGluM) was measured using positron emission tomography (μPET).ResultsBacon CPP was only observed in RYGB rats that had stable weight loss following surgery. BGluM assessment revealed that RYGB selectively activated regions of the right and midline cerebellum (Lob 8) involved in subjective processes related to reward or expectation. Also, bacon anticipation led to significant activation in the medial parabrachial nuclei (important in gustatory processing) and dorsomedial tegmental area (key to reward, motivation, cognition and addiction) in RYGB rats; and activation in the retrosplenial cortex (default mode network), and the primary visual cortex in control rats.ConclusionsRYGB alters brain activity in areas involved in reward expectation and sensory (taste) processing when anticipating a palatable fatty food. Thus, RYGB may lead to changes in brain activity in regions that process reward and taste-related behaviors. Specific cerebellar regions with altered metabolism following RYGB may help identify novel therapeutic targets for treatment of obesity.

show abstract

Section: Discussionmentioning

confidence: 99%

Roux-en-Y Gastric Bypass Alters Brain Activity in Regions that Underlie Reward and Taste Perception

et al. 2015

View full text Add to dashboard Cite

show abstract

“…To date, the limited research looking at the development of restrictive eating behaviours after bariatric surgery has consisted of case studies and reports [e.g. 4 , 5 , 9 , 25 , 35 – 37 ]. While useful in giving a context to the area, they cannot provide more in-depth insight into people’s personal experiences.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Experiences of Women Who Develop Restrictive Eating Behaviours After Bariatric Surgery

2020

View full text Add to dashboard Cite

Objective This study aimed to explore the experiences of women who had developed excessively restrictive eating behaviours following bariatric surgery. Method Five female participants, who were at least nine months post-bariatric surgery and exhibiting restrictive eating behaviours, were recruited from Bariatric Surgery Psychology Services and asked to complete qualitative face-to-face semi-structured interviews. The data was analysed using interpretative phenomenological analysis (IPA). Results Three super-ordinate themes emerged: (1) experiences of weight stigma and weight history on self, (2) the impact of loose skin, (3) thoughts about food and disordered eating patterns. These captured the impact of past weight-related experiences-including weight stigma, intense fears of weight gain, negative cognitions about the self, the impact of excess skin, changes in the way the women thought about food and restrictive eating behaviours. Discussion This study is one of the first to specifically explore restrictive eating disorders after bariatric surgery using a qualitative approach. The findings of this study may offer helpful aspects for professionals to hold in mind when identifying individuals with problematic restrictive eating behaviours following bariatric surgery. Body contouring surgery, internalised weight bias and weight stigma are explored in relation to the post-bariatric surgery treatment pathway. The current diagnostic criterion for anorexia nervosa are discussed to highlight difficulties in diagnosing this presentation in the post-bariatric surgery population, where people can have BMIs over 25 kg/m 2 but are severely restricting energy intake.

show abstract

Predictors of changes in physical, psychosocial, sexual quality of life, and comfort with food after obesity surgery: a 12-month follow-up study

et al. 2014

View full text Add to dashboard Cite

show abstract

100 kg more or less, still the same person (and disorder): From overweight to underweight—exacerbation of an eating disorder after bariatric surgery

Cited by 5 publications

References 43 publications

Roux-en-Y Gastric Bypass Alters Brain Activity in Regions that Underlie Reward and Taste Perception

Roux-en-Y Gastric Bypass Alters Brain Activity in Regions that Underlie Reward and Taste Perception

Exploring the Experiences of Women Who Develop Restrictive Eating Behaviours After Bariatric Surgery

Predictors of changes in physical, psychosocial, sexual quality of life, and comfort with food after obesity surgery: a 12-month follow-up study

Contact Info

Product

Resources

About