Nature Communications (Feb 2022)
SIRT1 selectively exerts the metabolic protective effects of hepatocyte nicotinamide phosphoribosyltransferase
Abstract
NAD + metabolism is potential target to treat metabolic disorders, in part due to the effects of the NAD + dependent enzyme Sirt1. Here the authors report that hepatic nicotinamide phosphoribosyltransferase, a rate-limiting step in the NAD + salvage pathway, regulates dark-cycle thermogenesis in a Sirt1-dependent but light-cycle thermogenesis and glucose homeostasis in a Sirt1-independent manner.