Essential roles of bile acid receptors FXR and TGR5 as metabolic regulators

Alterations of bile acid (BA) metabolism in type II diabetes (T2D) have revealed a link between BAs and metabolic homeostasis. The BA receptors farnesoid X receptor (FXR) and G-protein coupled BA receptor 1 (TGR5) both have shown to regulate lipid, glucose, and energy metabolism, rendering them potential therapeutic targets for T2D therapy. Astonishingly, BA signaling is vital as it has known to be a positive factor for beneficial improvements in vertical sleeve gastrectomy surgery, in turn making these BA receptors beneficial tools in therapeutic targets for T2D. These metabolic regulators: FXR and TGR5 are essential modulators in the metabolic system, which affect the human machinery and will be the focus of this review.