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Related Concept Videos

Anorexia Nervosa01:28

Anorexia Nervosa

329
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
329

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Related Experiment Video

Updated: Nov 2, 2025

Using the Activity-based Anorexia Rodent Model to Study the Neurobiological Basis of Anorexia Nervosa
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Activity-based Anorexia for Modeling Vulnerability and Resilience in Mice.

Jeff A Beeler1,2,3, Nesha S Burghardt4,2

  • 1Department of Psychology, Queens College, CUNY, Flushing, NY, USA.

Bio-Protocol
|June 14, 2021
PubMed
Summary

Activity-based anorexia (ABA) models anorexia nervosa using diet and exercise. This study identifies resilient mice that stabilize weight, unlike vulnerable mice, offering insights into eating disorder development.

Keywords:
Activity-based anorexiaAnimal modelAnorexia nervosaFood restrictionHyperactivityMouseResilienceVulnerability

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Related Experiment Videos

Last Updated: Nov 2, 2025

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Area of Science:

  • Neuroscience
  • Behavioral Science
  • Animal Models

Background:

  • Activity-based anorexia (ABA) is a rodent model for anorexia nervosa, involving food restriction and wheel running.
  • Previous ABA studies in mice show variable results based on experimental conditions.
  • A refined ABA protocol is needed to model both vulnerability and resilience to diet and exercise.

Purpose of the Study:

  • To present a novel ABA protocol for modeling vulnerability and resilience in C57BL/6 female mice.
  • To characterize distinct phenotypes of vulnerability and resilience to diet and exercise.
  • To provide a valuable tool for studying the underlying mechanisms of eating disorders.

Main Methods:

  • Utilized a modified ABA protocol with C57BL/6 female mice.
  • Combined limited food access with unlimited running wheel access.
  • Monitored food intake, wheel running activity, and body weight changes.

Main Results:

  • Vulnerable mice showed increased running, decreased food intake, and significant weight loss.
  • Resilient mice displayed increased food intake, reduced wheel running, and weight stabilization.
  • This resilience phenotype more closely mimics human dieting behaviors than previous ABA models.

Conclusions:

  • The developed ABA protocol effectively models both vulnerability and resilience to diet and exercise in mice.
  • Resilient mice exhibit adaptive feeding and activity patterns, maintaining stable body weight.
  • This model is crucial for future research into the physiological and neural bases of eating disorders.