Capsaicin Improves Glucose Tolerance and Insulin Sensitivity Through Modulation of the Gut Microbiota‐Bile Acid‐FXR Axis in Type 2 Diabetic db/db Mice

Sep 21, 2019Molecular nutrition & food research

Capsaicin improves blood sugar control and insulin response by changing gut bacteria and bile acid signals in diabetic mice

AI simplified

Abstract

Capsaicin (CAP) treatment for 8 weeks markedly improves glucose tolerance and insulin sensitivity in type 2 diabetic db/db mice.

  • CAP decreases gluconeogenesis and increases glycogen synthesis in the liver.
  • The treatment inhibits the growth of the Lactobacillus genus and its bile salt hydrolase activity.
  • This inhibition leads to an accumulation of tauro-β-muricholic acid, which antagonizes the farnesoid X receptor.
  • Suppression of enterohepatic FXR-fibroblast growth factor 15 signaling may increase the bile acid pool size.
  • Increased expression of cholesterol 7α-hydroxylase is associated with enhanced hepatic bile acid synthesis.
  • Depleting gut microbiota with antibiotics negates the benefits of CAP on bile acid metabolism and glucose homeostasis.

AI simplified

Full Text

what lands in your inbox each week:

  • 📚7 fresh studies
  • 📝plain-language summaries
  • direct links to original studies
  • 🏅top journal indicators
  • 📅weekly delivery
  • 🧘‍♂️always free