# Translational Perspectives on Binge-Eating: Insights from Animal Models

**Authors:** Estefania P. Azevedo, Sarah A. Stern

PMC · DOI: 10.1007/s11920-026-01661-9 · Current Psychiatry Reports · 2026-03-05

## TL;DR

This review explores animal models of binge-eating behavior to understand its mechanisms and develop treatments.

## Contribution

The paper highlights three distinct animal models of binge-like behavior independent of obesity.

## Key findings

- Limited access to palatable food induces binge-like behavior in rodents.
- Stress followed by limited food access also triggers binge-like eating.
- Cue-induced overconsumption is another key model for studying binge-eating.

## Abstract

Binge-eating is a behavior that is both recognized in both binge-eating disorder and binge-subtypes of restrictive eating disorders. Binge-eating is distinct from obesity, although the two frequently co-occur. The purpose of this review is to examine animal models of binge like behavior independent of obesity as a phenotype and to examine recent findings.

Current research indicates three major precipitants of binge-like behavior in rodents, namely limited access to palatable food, limited access to food following stress, and cue-induced overconsumption. These models have enabled mechanistic studies, which highlight the role of several key brain regions and circuits in binge-eating.

Taken together, these studies highlight the important role that preclinical models play in elucidating the mechanisms underlying binge-eating and to develop therapeutic interventions.

## Linked entities

- **Diseases:** binge-eating disorder (MONDO:0005582)

## Full-text entities

- **Genes:** HTR2C (5-hydroxytryptamine receptor 2C) [NCBI Gene 3358] {aka 5-HT1C, 5-HT2C, 5-HTR2C, 5HTR2C, HTR1C}, TAAR1 (trace amine associated receptor 1) [NCBI Gene 134864] {aka TA1, TAR1, TRAR1}, OXT (oxytocin/neurophysin I prepropeptide) [NCBI Gene 5020] {aka OT, OT-NPI, OXT-NPI}, SLC6A3 (solute carrier family 6 member 3) [NCBI Gene 6531] {aka DAT, DAT1, PKDYS, PKDYS1}, CGA (glycoprotein hormones, alpha polypeptide) [NCBI Gene 1081] {aka CG-ALPHA, FSHA, GPA1, GPHA1, GPHa, HCG}, NPY (neuropeptide Y) [NCBI Gene 4852] {aka PYY4}, HCRT (hypocretin neuropeptide precursor) [NCBI Gene 3060] {aka NRCLP1, OX, PPOX}, Ghrl (ghrelin and obestatin prepropeptide) [NCBI Gene 59301], ADCYAP1 (adenylate cyclase activating polypeptide 1) [NCBI Gene 116] {aka PACAP}, Vip (vasoactive intestinal peptide) [NCBI Gene 117064] {aka vip/phi27}, SLC17A6 (solute carrier family 17 member 6) [NCBI Gene 57084] {aka DNPI, VGLUT2}, SLC32A1 (solute carrier family 32 member 1) [NCBI Gene 140679] {aka DEE114, GEFSP12, VGAT, VIAAT, VIAAT GEFSP12}, POMC (proopiomelanocortin) [NCBI Gene 5443] {aka ACTH, CLIP, LPH, MSH, NPP, OBAIRH}, AGRP (agouti related neuropeptide) [NCBI Gene 181] {aka AGRT, ART, ASIP2}, NOS1 (nitric oxide synthase 1) [NCBI Gene 4842] {aka IHPS1, N-NOS, NC-NOS, NOS, bNOS, nNOS}, CARTPT (CART prepropeptide) [NCBI Gene 9607] {aka CART}, GLP1R (glucagon like peptide 1 receptor) [NCBI Gene 2740] {aka GLP-1, GLP-1-R, GLP-1R}, Gcg (glucagon) [NCBI Gene 24952] {aka GLP-1, Glp1, Glp2}, INS (insulin) [NCBI Gene 3630] {aka IDDM, IDDM1, IDDM2, ILPR, IRDN, MODY10}, Lep (leptin) [NCBI Gene 25608] {aka OB, obese}, PNOC (prepronociceptin) [NCBI Gene 5368] {aka N/OFQ, NOP, OFQ, PPNOC, ppN/OFQ}, DRD1 (dopamine receptor D1) [NCBI Gene 1812] {aka D1R, DADR, DRD1A}, Ppa1 (inorganic pyrophosphatase 1) [NCBI Gene 294504] {aka Pp, Pyp}, PMCH (pro-melanin concentrating hormone) [NCBI Gene 5367] {aka MCH, ppMCH}, LEPR (leptin receptor) [NCBI Gene 3953] {aka CD295, LEP-R, LEPRD, OB-R, OBR, huB219}
- **Diseases:** weight loss (MESH:D015431), Binge-eating (MESH:D002032), anorexia nervosa (MESH:D000856), eat (MESH:D001068), Loss of control (MESH:C536209), impulsivity (MESH:D007174), adiposity (MESH:D018205), depression (MESH:D003866), Compulsive (MESH:D000073932), addictive behaviors (MESH:D000437), BED (MESH:D056912), anorexia (MESH:D000855), anxiety (MESH:D001007), Prader-Willi (MESH:D011218), addiction (MESH:D019966), psychiatric (MESH:D001523), hyperphagia (MESH:D006963), Obesity (MESH:D009765), weight gain (MESH:D015430), mood disorders (MESH:D019964), bulimia nervosa (MESH:D052018), anxiety disorders (MESH:D001008), hyperactivity (MESH:D006948), caloric deficit (MESH:D009461), major depressive disorder (MESH:D003865)
- **Chemicals:** HPF (-), methylphenidate (MESH:D008774), sucrose (MESH:D013395), LDX (MESH:D000069478), dopamine (MESH:D004298), sugar (MESH:D000073893), fat (MESH:D005223)
- **Species:** Homo sapiens (human, species) [taxon 9606], Rodentia (rodent, order) [taxon 9989], Rattus norvegicus (brown rat, species) [taxon 10116], Mus musculus (house mouse, species) [taxon 10090]

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC12960417/full.md

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Source: https://tomesphere.com/paper/PMC12960417