Nature Communications (Feb 2022)

SIRT1 selectively exerts the metabolic protective effects of hepatocyte nicotinamide phosphoribosyltransferase

  • Cassandra B. Higgins,
  • Allyson L. Mayer,
  • Yiming Zhang,
  • Michael Franczyk,
  • Samuel Ballentine,
  • Jun Yoshino,
  • Brian J. DeBosch

DOI
https://doi.org/10.1038/s41467-022-28717-7
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 17

Abstract

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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.