Intestine-Specific Deletion of SIRT1 in Mice Impairs DCoH2-HNF-1α-FXR Signaling and Alters Systemic Bile Acid Homeostasis

Intestinal SIRT1, a key nutrient sensor, is required for ileal bile acid absorption and systemic bile acid homeostasis in mice. We delineated the mechanism of metabolic regulation of HNF-1α/FXR signaling. Reagents designed to inhibit intestinal SIRT1 might be developed to treat bile acid-related diseases such as cholestasis.