Cited by 1,679Regulation of Appetite and ObesityHypothalamic control of reproductive hormonesNeuropeptides and Animal Physiology

The Distribution and Mechanism of Action of Ghrelin in the CNS Demonstrates a Novel Hypothalamic Circuit Regulating Energy Homeostasis

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Cowley, Michael A, Smith, Roy G, Diano, Sabrina, Tschöp, Matthias, Pronchuk, Nina, Grove, Kevin L, Strasburger, Christian J, Bidlingmaier, Martin +13 more·2003·Neuron

Abstract

The gastrointestinal peptide hormone ghrelin stimulates appetite in rodents and humans via hypothalamic actions. We discovered expression of ghrelin in a previously uncharacterized group of neurons adjacent to the third ventricle between the dorsal, ventral, paraventricular, and arcuate hypothalamic nuclei. These neurons send efferents onto key hypothalamic circuits, including those producing neuropeptide Y (NPY), Agouti-related protein (AGRP), proopiomelanocortin (POMC) products, and corticotropin-releasing hormone (CRH). Within the hypothalamus, ghrelin bound mostly on presynaptic terminals of NPY neurons. Using electrophysiological recordings, we found that ghrelin stimulated the activity of arcuate NPY neurons and mimicked the effect of NPY in the paraventricular nucleus of the hypothalamus (PVH). We propose that at these sites, release of ghrelin may stimulate the release of orexigenic peptides and neurotransmitters, thus representing a novel regulatory circuit controlling energy homeostasis.

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Crossref · 10.1016/s0896-6273(03)00063-1

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Authors
Cowley, M. A., Smith, R. G., Diano, S., Tschöp, M., Pronchuk, N., Grove, K. L., Strasburger, C. J., Bidlingmaier, M., Esterman, M., Heiman, M. L., Garcia-Segura, L. M., Nillni, E. A., Mendez, P., Low, M. J., Sotonyi, P., Friedman, J. M., Liu, H., Pinto, S., Colmers, W. F., Cone, R. D., & Horvath, T. L.
Affiliations
  • Oregon Health & Science University (US)
  • Baylor College of Medicine (US)
  • Yale University (US)
  • Eli Lilly (United States) (US)
  • University of Alberta (CA)
  • Oregon National Primate Research Center (US)
  • Brown University (US)
  • Rockefeller University (US)
Venue
Neuron
Publisher
Elsevier BV
Published
2003-02
Volume
37
Issue
4
Pages
649-661
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1990095603
Cited by
1,679
References
5
Citations by year
2026: 15 · 2025: 49 · 2024: 41 · 2023: 46 · 2022: 57 · 2021: 77 · 2020: 64 · 2019: 47 · 2018: 66 · 2017: 78 · 2016: 90 · 2015: 67 · 2014: 89 · 2013: 90 · 2012: 102
FWCI
36.81
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
Funders
  • National Institutes of Health (AG-018895, DK-51730, DK-60711, DK-61619, DK-62202, MH-59847, RR-14451)
  • Merck
  • Canadian Institutes of Health Research (MT 10520)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
ghrelin, hypothalamus, energy homeostasis, neuropeptide Y, arcuate nucleus, paraventricular nucleus, third ventricle, appetite, orexigenic peptides, presynaptic terminals, corticotropin-releasing factor, proopiomelanocortin, agouti-related protein, hypothalamic circuitry
MeSH terms
Animals, Central Nervous System, Corticotropin-Releasing Hormone, Energy Metabolism, Female, Homeostasis, Hypothalamus, Luminescent Proteins, Mice, Transgenic, Nerve Net, Neurons, Neuropeptide Y, Organ Specificity, Paraventricular Hypothalamic Nucleus, Pro-Opiomelanocortin, Protein Binding, Proteins, Protein Biosynthesis, Presynaptic Terminals, Mice, Knockout, Patch-Clamp Techniques, Intercellular Signaling Peptides and Proteins, Peptide Hormones, Mice, Rats, Agouti-Related Protein, Ghrelin, In Vitro Techniques

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