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Recent Advances in the Neurobiology of Altered Motivation Following Bariatric Surgery

  • Eating Disorders (S Wonderlich and S Engel, Section Editors)
  • Published:
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Abstract

Purpose of Review

There is compelling evidence in the clinical population that long-term weight loss secondary to bariatric surgery is mitigated by the reemergence of maladaptive feeding behaviors and in some cases new onset substance abuse.

Recent Findings

A review of the current literature suggests that physical restructuring of the GI tract during WLS alters secretion of feeding peptides and nutrient-sensing mechanisms that directly target the brain’s endogenous reward system, the mesolimbic dopamine system.

Summary

Post-surgical changes in GI physiology augment activation of the mesolimbic system. In some patients, this process may contribute to a reduced appetite for palatable food whereas in others it may support maladaptive motivated behavior for food and chemical drugs. It is concluded that future studies are required to detail the timing and duration of surgical-induced changes in GI-mesolimbic communication to more fully understand this phenomenon.

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Authors and Affiliations

  1. Department of Integrative Physiology and Neuroscience, College of Veterinary Medicine, Washington State University, 1815 Ferdinand’s Lane, Pullman, WA, 99164, USA

    Julianna N. Brutman & Jon F. Davis

  2. Laboratory of Endocrine and Neuropsychiatric Disorders, Division of Basic Pharmaceutical Sciences, College of Pharmacy, Xavier University of Louisiana, New Orleans, LA, USA

    Sunil Sirohi

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Brutman, J.N., Sirohi, S. & Davis, J.F. Recent Advances in the Neurobiology of Altered Motivation Following Bariatric Surgery. Curr Psychiatry Rep 21, 117 (2019). https://doi.org/10.1007/s11920-019-1084-2

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