Cited by 137Neuropeptides and Animal PhysiologyRegulation of Appetite and ObesityHypothalamic control of reproductive hormones

The Bed Nucleus Is a Neuroanatomical Substrate for the Anorectic Effect of Corticotropin-Releasing Factor and for Its Reversal by Nociceptin/Orphanin FQ

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Ciccocioppo, Roberto, Fedeli, Amalia, Economidou, Daina, Policani, Federica, Weiss, Friedbert, Massi, Maurizio·2003·The Journal of Neuroscience

Abstract

Nociceptin/orphanin FQ (N/OFQ), the endogenous ligand of the opioid N/OFQ receptor (NOP), possesses marked functional anti-stress and anti-corticotropin-releasing factor (CRF) actions. We have shown that intracerebroventricular injection of N/OFQ reverses the hypophagic effect induced by stress or by CRF given intracerebroventricularly. To shed new light on the mechanisms involved in the anti-CRF action of N/OFQ, we investigated the ability of N/OFQ to prevent CRF-induced anorexia after microinjection studies into brain areas of potential interest in the control of feeding behavior and coexpressing NOP and CRF receptors. These areas include the bed nucleus of the stria terminalis (BNST), the central amygdala (CeA), the locus ceruleus (LC), the ventromedial hypothalamus (VMH), the paraventricular nucleus (PVN), and the dorsal raphe (DR). The results demonstrated that the anorectic effect of 0.04 nmol of CRF per rat (200 ng per rat) given intracerebroventricularly is reversed by pretreatment with 0.01-0.21 nmol of N/OFQ per rat (25-500 ng per rat) injected into the BNST but not into the CeA, LC, VMH, PVN, or DR. Microinjection of 0.01-0.02 nmol of CRF per site (50-100 ng per site) into the BNST but not into the CeA or the LC induced marked anorexia in food-deprived rats. Pretreatment with 0.01-0.21 nmol of N/OFQ per site (25-500 ng per site) into the BNST also blocked the anorectic action of 0.02 nmol of CRF per site (100 ng per site) given in the same area. Finally, intra-BNST microinjection of 0.01-0.21 nmol of N/OFQ per site (25-500 ng per site) did not modify food intake in either food-sated or food-deprived rats. These data demonstrate that the BNST is involved in the modulation of CRF-induced anorexia, which is prevented by activation of N/OFQ receptors.

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Crossref · 10.1523/jneurosci.23-28-09445.2003

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Authors
Ciccocioppo, R., Fedeli, A., Economidou, D., Policani, F., Weiss, F., & Massi, M.
Affiliations
Università di Camerino (IT)
Venue
The Journal of Neuroscience
Published
2003-10-15
Volume
23
Issue
28
Pages
9445-9451
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2156466346
Cited by
137
References
54
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 11 · 2018: 6 · 2017: 2 · 2016: 2 · 2015: 7 · 2014: 13 · 2013: 12 · 2012: 10
FWCI
2.88
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministero dell’Istruzione, dell’Università e della Ricerca
  • National Institutes of Health
  • U.S. Public Health Service (10531)
  • National Institute on Alcohol Abuse and Alcoholism (R01AA010531)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
nociceptin/orphanin FQ, corticotropin-releasing factor, bed nucleus of the stria terminalis, anorexia, feeding behavior, CRF receptors, stress, food deprivation, central amygdala, locus coeruleus, ventromedial hypothalamus, paraventricular nucleus, dorsal raphe nucleus, neuroanatomical substrates
MeSH terms
Nociceptin, Amygdala, Animals, Anorexia, Appetite Depressants, Corticotropin-Releasing Hormone, Drug Administration Routes, Eating, Locus Coeruleus, Male, Microinjections, Paraventricular Hypothalamic Nucleus, Raphe Nuclei, Septal Nuclei, Ventromedial Hypothalamic Nucleus, Rats, Wistar, Opioid Peptides, Rats

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