Cited by 574Stress Responses and CortisolRegulation of Appetite and ObesityNeuropeptides and Animal Physiology

Chronic stress promotes palatable feeding, which reduces signs of stress: Feedforward and feedback effects of chronic stress

Pecoraro, Norman, Reyes, Faith, Gomez, Francisca, Bhargava, Aditi, Dallman, Mary F.·2004·Endocrinology

Abstract

We suggested a new model of the effects of glucocorticoids (GCs) exerted during chronic stress, in which GCs directly stimulate activities in the brain while indirectly inhibiting activity in the hypothalamo-pituitary-adrenal (HPA) axis through their metabolic shifts in energy stores in the periphery. This study is an initial test of our model. In a 2 x 2 design, we provided ad lib access to calorically dense lard and sucrose (comfort food) + chow or chow alone, and repeatedly restrained half of the rats in each group for 5 d (3 h/d). We measured caloric intake, body weight, caloric efficiency, ACTH, corticosterone (B), and testosterone during the period of restraint and leptin, insulin, and fat depot weights, as well as hypothalamic corticotropin-releasing factor mRNA at the end of the period. We hypothesized that chronically restrained rats would exhibit a relative increase in comfort food ingestion and that these rats would have reduced HPA responses to repeated restraint. Although total caloric intake was reduced in both groups of restrained rats, compared with controls, the proportion of comfort food ingested increased in the restrained rats compared with their nonrestrained controls. Moreover, caloric efficiency was rescued in the stressed, comfort food group. Furthermore, ACTH and B responses to the repeated restraint bouts were reduced in the rats with access to comfort food. Corticotropin-releasing factor mRNA was reduced in control rats eating comfort food compared with those eating chow, but there were no differences between the stressed groups. The results of this experiment tend to support our model of chronic effects of stress and GCs, showing a stressor-induced preference for comfort food, and a comfort-food reduction in activity of the HPA axis.

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Crossref · 10.1210/en.2004-0305

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  • Chronic high glucocorticoids and increases in insulin have synergistic effects on increasing highly palatable food intake and abdominal fat deposition.

    “Chronic high GCs and increases in insulin have synergistic effects on increasing HP food intake and abdominal fat deposition”

    From Role of addiction and stress neurobiology on food intake and obesity (2018) · cites this paper as Pecoraro et al., 2004

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Authors
Pecoraro, N., Reyes, F., Gomez, F., Bhargava, A., & Dallman, M. F.
Affiliations
University of California, San Francisco (US)
Corresponding author
Pecoraro, Norman
Venue
Endocrinology
Published
2004-08
Volume
145
Issue
8
Pages
3754-3762
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2074469151
Cited by
574
References
60
Citations by year
2026: 8 · 2025: 13 · 2024: 24 · 2023: 17 · 2022: 28 · 2021: 30 · 2020: 31 · 2019: 37 · 2018: 20 · 2017: 37 · 2016: 29 · 2015: 35 · 2014: 42 · 2013: 30 · 2012: 34
FWCI
6.86
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute on Drug Abuse (F32 DA14159-03, R01DA016944, R01 DA16944-01, F32DA014159)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
chronic stress, comfort food, palatable food intake, glucocorticoids, hypothalamic-pituitary-adrenal axis, restraint stress, corticosterone, ACTH, caloric efficiency, leptin, insulin, testosterone, corticotropin-releasing factor, energy metabolism, stress buffering
MeSH terms
Adrenalectomy, Adrenocorticotropic Hormone, Animals, Body Weight, Energy Intake, Chronic Disease, Corticosterone, Corticotropin-Releasing Hormone, Eating, Feedback, Hypothalamo-Hypophyseal System, Male, Pituitary-Adrenal System, RNA, Messenger, Stress, Physiological, Rats, Sprague-Dawley, Rats

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