Nomilin as an anti-obesity and anti-hyperglycemic agent
1Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo, Japan. aroysato@mail.ecc.u-tokyo.ac.jp
Abstract:
Recent scientific findings support the notion that bile acids, which are cholesterol catabolites, are bioactive signaling molecules that function as ligands for the farnesoid X receptor or a G-protein-coupled receptor, TGR5. Through these receptors, bile acids can maintain not only bile acid homeostasis but also lipid and carbohydrate homeostasis. An intriguing finding regarding the role of TGR5 in energy metabolism and glucose homeostasis suggests a potential approach to combat obesity and insulin resistance by targeting this receptor to increase thermogenesis and incretin secretion. In this review, I have summarized the latest findings related to TGR5 agonists, in particular, a citrus limonoid, nomilin, and the roles of these agonists in energy metabolism and glucose homeostasis.
Insights
Bile acids, acting via TGR5, regulate energy and glucose balance. Targeting TGR5 with agonists like nomilin offers a promising strategy for combating obesity and insulin resistance.
Area of Science:
- Endocrinology
- Metabolic Research
- Cholesterol Metabolism
Background:
- Bile acids are cholesterol catabolites with signaling functions.
- They act as ligands for farnesoid X receptor and TGR5.
- Bile acids are crucial for maintaining homeostasis of bile acids, lipids, and carbohydrates.
Purpose of the Study:
- To review the latest findings on TGR5 agonists.
- To explore the role of TGR5 in energy metabolism and glucose homeostasis.
- To highlight the potential of TGR5 targeting for obesity and insulin resistance.
Main Methods:
- Literature review of recent scientific findings.
- Focus on TGR5 agonists, including the citrus compound nomilin.
- Analysis of TGR5's involvement in thermogenesis and incretin secretion.
Main Results:
- TGR5 activation influences energy expenditure.
- TGR5 plays a role in glucose homeostasis and insulin sensitivity.
- Nomilin emerges as a potential TGR5 agonist with metabolic benefits.
Conclusions:
- TGR5 is a key regulator of energy and glucose metabolism.
- Targeting TGR5 presents a therapeutic avenue for metabolic disorders.
- Further research into TGR5 agonists like nomilin is warranted.
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