The role of PYY in feeding regulation
Abstract
Peptide YY (PYY), a 36-amino-acid peptide, is secreted primarily from L-cells residing in the intestinal mucosa of the ileum and large intestine. PYY, which belongs to a family of peptides including neuropeptide Y (NPY) and pancreatic polypeptide, is released into the circulation as PYY(1-36) and PYY(3-36); the latter is the major form of PYY in gut mucosal endocrine cells and throughout the circulation. Plasma PYY levels begin to rise within 15 min after starting to eat and plateau within approximately 90 min, remaining elevated for up to 6 h. Exogenous administration of PYY(3-36) reduces energy intake and body weight in both humans and animals. Via Y2 receptors, the satiety signal mediated by PYY inhibits NPY neurons and activates pro-opiomelanocortin neurons within the hypothalamic arcuate nucleus. Peripheral PYY(3-36) binds Y2 receptors on vagal afferent terminals to transmit the satiety signal to the brain. PYY(3-36) may have therapeutic potential in human obesity.
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These gut peptides can activate their cognate receptors located in vagal afferents to signal to the brainstem.
“Moreover, these gut peptides can activate their cognate receptors located in vagal afferents to signal to the brainstem [179,180].”
From Anxiety, depression, and the microbiome: A role for gut peptides (2018) · cites this paper as [180]
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- Authors
- Ueno, H., Yamaguchi, H., Mizuta, M., & Nakazato, M.
- Affiliations
- University of Miyazaki (JP)
- Corresponding author
- Nakazato, Masamitsu
- Venue
- Regulatory Peptides
- Publisher
- Elsevier BV
- Published
- 2008-01
- Volume
- 145
- Issue
- 1-3
- Pages
- 12-16
- ISSN
- 0167-0115 (ISSN-L)
- OpenAlex
- W2086380824
- Cited by
- 105
- References
- 50
- Citations by year
- 2026: 7 · 2025: 8 · 2024: 5 · 2023: 3 · 2022: 6 · 2021: 9 · 2020: 3 · 2019: 2 · 2018: 4 · 2017: 3 · 2016: 9 · 2015: 6 · 2014: 8 · 2013: 4 · 2012: 9
- FWCI
- 0.56
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Regulatory Peptides (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
- Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
- Keywords
- peptide YY, PYY3-36, food intake regulation, satiety, L cells, neuropeptide Y, Y2 receptor, hypothalamic arcuate nucleus, vagal afferents, energy intake, body weight, obesity treatment, gastrointestinal endocrine cells
- MeSH terms
- Animals, Feeding Behavior, Humans, Organ Specificity, Receptors, Gastrointestinal Hormone, Peptide YY
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