Bile acids and their effects on diabetes.

Area of Science:

• Endocrinology
• Metabolic Diseases
• Gastroenterology

Background:

• Diabetes mellitus is a growing global health concern characterized by hyperglycemia.
• Poor glycemic control leads to severe vascular complications, including blindness, kidney failure, and cardiovascular events.
• Metabolic memory, a persistent state of metabolic changes, can drive disease progression even after glucose normalization.

Purpose of the Study:

• To review the role of bile acids (BAs) in glucose and lipid metabolism.
• To explore therapeutic strategies targeting BA receptors for glycemic control in diabetes.
• To discuss recent advancements in manipulating the enterohepatic circulation, bariatric surgery, and circadian rhythms for diabetes management.

Main Methods:

• Review of current literature on bile acid signaling pathways.
• Analysis of the function of farnesoid X receptor (FXR) and TGR5 in metabolic regulation.
• Examination of therapeutic interventions involving BA modulation, enterohepatic circulation, and bariatric surgery.

Main Results:

• Bile acids regulate energy metabolism by activating nuclear receptors like FXR and G-protein coupled receptors like TGR5.
• Activation of FXR by BAs influences downstream targets such as FGF15/21, impacting glucose and insulin homeostasis.
• Targeting BA receptors and pathways shows potential for improving glycemic control in diabetic patients.

Conclusions:

• Bile acid metabolism and signaling are critical for maintaining glucose and lipid homeostasis.
• Therapeutic strategies focused on bile acids, their receptors, and related pathways offer novel approaches to diabetes treatment.
• Further research into BA manipulation holds promise for effective diabetes management and prevention of complications.