Related Experiment Video
Updated: Jun 22, 2026

11:36
A RAPID Method for Blood Processing to Increase the Yield of Plasma Peptide Levels in Human Blood
Published on: April 28, 2016
Ghrelin and its biological effects on pigs
Xiao-Ying Dong1, Jian Xu, Sheng-Qiu Tang
1College of Yingdong Bioengineering, Shaoguan University, Zhenjiang District, Shaoguan, Guangdong, China.
Peptides
|May 26, 2009
Summary
Ghrelin, a peptide hormone, regulates crucial functions in pigs, including appetite and growth. This review details ghrelin
Area of Science:
- Endocrinology and Animal Physiology
Background:
- Ghrelin is a 28-amino acid peptide hormone.
- It exerts effects by binding to the growth hormone secretagogue receptor (GHS-R).
Purpose of the Study:
- To present recent research on ghrelin in pigs.
- To cover ghrelin structure, distribution, GHS-R, biological functions, and regulatory mechanisms.
Main Methods:
- Literature review of contemporary research on ghrelin in pigs.
Main Results:
- Ghrelin regulates food intake, body weight, GI motility, hormone secretion, glucose release, cardiovascular functions, enzyme release, cell proliferation, and reproduction in pigs.
- Ghrelin induces adipocyte and hepatocyte proliferation in primary cultured piglets.
Conclusions:
- Ghrelin plays a significant role in various physiological processes in pigs.
- Further research into ghrelin's structure, distribution, receptor interactions, and regulatory mechanisms is warranted.
Related Concept Videos
Regulation of Food Intake
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...
Hormonal Regulation
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.
Glucagon-like Receptor Agonists
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 the...
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 the...

