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Related Concept Videos

Hormonal Regulation01:40

Hormonal Regulation

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Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
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Hormonal Regulation01:33

Hormonal Regulation

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The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
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Regulation of the Digestive System01:25

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Digestive activity regulation hinges on three primary components. Activation is prompted by a multitude of mechanical and chemical indicators, primarily detected by receptors within the stomach and intestines' walls. These receptors predominantly respond to factors such as mechanical stretching of the organ walls, changes in pH and osmolarity, and the presence of digesting materials and their by-products.
The effectors in this regulation system are glands and smooth muscles. Activation of...
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Hormones Secreted by the Stomach01:25

Hormones Secreted by the Stomach

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Enteroendocrine cells, accounting for only 1% of stomach epithelial cells, play a significant role in digestion and are classified by their digestive hormone secretions.
Each of these hormones secreted by different enteroendocrine cells plays a unique role in digestion. Here are a few examples:
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Regulation of Food Intake01:30

Regulation of Food Intake

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Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
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Glucagon-like Receptor Agonists01:24

Glucagon-like Receptor Agonists

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Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...
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Related Experiment Video

Updated: May 5, 2026

A RAPID Method for Blood Processing to Increase the Yield of Plasma Peptide Levels in Human Blood
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A RAPID Method for Blood Processing to Increase the Yield of Plasma Peptide Levels in Human Blood

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Gut hormones and appetite control.

A M Wren1, S R Bloom

  • 1Department of Metabolic Medicine, Imperial College London, London, England.

Gastroenterology
|May 15, 2007
PubMed
Summary
This summary is machine-generated.

Gut hormones from the digestive system regulate eating behavior and energy balance. Manipulating these gut hormones may offer a promising treatment for obesity.

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Area of Science:

  • Gastroenterology
  • Neuroendocrinology
  • Metabolic Research

Background:

  • Gastrointestinal peptides play a role in regulating digestive functions.
  • Emerging evidence highlights their physiological influence on eating behavior and energy homeostasis.
  • Neurohormonal gut-brain signaling is crucial for managing energy balance.

Purpose of the Study:

  • To review the role of gastrointestinal peptides in regulating eating behavior.
  • To explore the potential of manipulating gut hormones for managing energy balance.
  • To assess the therapeutic potential of gut hormones in obesity treatment.

Main Methods:

  • Literature review of studies on gastrointestinal peptides and eating behavior.
  • Analysis of research on gut-brain signaling in energy homeostasis.
  • Examination of studies investigating the effects of gut hormones in humans, including obese subjects.

Main Results:

  • Ghrelin, a stomach-derived peptide, acts as a meal initiator.
  • Intestine and pancreas release satiety signals including peptide YY, pancreatic polypeptide, glucagon-like peptide 1, oxyntomodulin, and cholecystokinin.
  • Gut hormones can be manipulated to regulate human energy balance, with obese individuals retaining sensitivity.

Conclusions:

  • Gut hormones are key regulators of appetite and energy intake.
  • Targeting gut hormones presents a viable therapeutic strategy for obesity.
  • Gut hormone-based therapies may be effective and well-tolerated for obesity management.