Peptide YYhormone Peptide YY (PYY) is a crucial gut hormone primarily secreted by enteroendocrine L cells located in the distal ileum and colonPeptide YY - an overview. This secretion is a direct response to nutrient intake, playing a significant role in regulating appetite and digestion. When you eat, PYY is released into the bloodstream, signaling to the brain that you are full and helping to slow down the digestive process.Peptide YY - an overview Understanding where and why PYY is secreted is key to appreciating its complex functions within the bodyPeptide YY(1-36) and Peptide YY(3-36): Part I. Distribution ....
The primary sites of PYY production are specialized cells known as L cells.作者：NT Nguyen·2025—5.1. Both PYY and GLP-1 are secreted byL-cells located mainly in the distal ileum and colon, with nutrient intake—especially meals that are high in fat and ... These cells are abundant in the mucosal endocrine cells of the gastrointestinal tract, particularly in the ileum and colon. While other tissues may produce small amounts, the overwhelming majority of circulating PYY originates from these intestinal locations. This strategic positioning allows PYY to be released directly into the bloodstream following the passage of nutrients through the digestive system.
PYY secretion is intrinsically linked to eating and nutrient intake. The presence of food, especially fats and carbohydrates, in the lumen of the intestine stimulates the L cells to release PYY.Peptide YY and Glucagon-like Peptide-1 Secretion in Obesity This postprandial release is a rapid process, with PYY levels rising shortly after a meal. Beyond general nutrient intake, specific components like glucose, bile salts, lipids, short-chain fatty acids, and amino acids are known to trigger PYY releasePeptide YY and appetite control - PubMed. Hormones such as cholecystokinin (CCK) and even gastric acid can also influence PYY secretion, highlighting the interconnectedness of digestive signaling pathwaysThe role of peptide YY in regulating glucose homeostasis.
Once secreted, PYY exerts several important physiological effectsPeptide YY (PYY) | Springer Nature Link (formerly SpringerLink). Its most well-known function is its role in appetite control.2025年8月7日—Peptide YY is a 36-amino-acid peptide hormoneprimarily secreted by the L-cells of the ileum and colonafter meals [246] . Some cancers ... By acting on the brain, PYY reduces hunger and promotes satiety, effectively signaling the end of a meal.作者：J Wilbrink·2024·被引用次数：2—We hypothesize that obesity is associated with attenuated systemic and tissue concentrations of the gutpeptides PYYand GLP-1. This action is often referred to as the "ileal brake," as it originates from the ileum and helps to regulate the rate at which the stomach empties and nutrients are absorbed.
Furthermore, PYY influences various aspects of gastrointestinal functionTargeting thesecretionof gut peptides such as glucagon-like peptide 1 (GLP-1) andpeptide YY(PYY) is a strategy under development for the treatment of .... It plays a role in regulating gastric acid and pancreatic enzyme secretion, generally leading to a decrease in their output. This aligns with its role in slowing down digestion.Review article Evolution of peptide YY analogs for the ... PYY also affects gastrointestinal motility, contributing to the coordinated movement of food through the digestive tract.
Peptide YY is part of a larger family of peptides, including pancreatic polypeptide and neuropeptide Y, which share structural similarities作者：S La Rosa·2022·被引用次数：1—PYY is mainly produced byendocrine L-cells of the distal ileum and colon(Fig. 1) and is released postprandially in response to food .... In the gut, PYY is often colocalized and cosecreted with glucagon-like peptide-1 (GLP-1), another vital gut hormone involved in glucose homeostasis and appetite regulation. The simultaneous release of these hormones suggests a coordinated effort to manage nutrient processing and energy balance.PYY is mainly produced byendocrine L cells of the colon and rectumand appears to be the earliest hormone released by colonic endocrine cells, suggesting that ...
While nutrient intake is the primary driver of PYY secretion, other factors can influence its circulating levelsPeptide YY Is Secreted after Oral Glucose Administration in .... These include the composition of the meal – meals high in fat tend to elicit a stronger PYY response.Pancreatic polypeptide, peptide YY, and neuropeptide Y Research also indicates potential gender-specific differences in PYY secretion. Additionally, conditions such as obesity have been associated with altered PYY levels, suggesting a role for this hormone in energy balance disordersPeptide YY (PYY), a member of the pancreatic polypeptide family, has roles in gastric acid andpancreatic enzyme secretionand gastrointestinal motility ....
In conclusion, Peptide YY is a vital gastrointestinal hormone primarily secreted by L cells in the ileum and colon in response to food intake. Its release plays a critical role in satiety, appetite regulation, and the modulation of digestive processes, underscoring its importance in maintaining energy balance and overall metabolic health.
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