Nicotinamide riboside supplementation confers marginal metabolic benefits in obese mice without remodeling the muscle acetyl-proteome.

Journal Article (Journal Article)

Nicotinamide riboside supplements (NRS) have been touted as a nutraceutical that promotes cardiometabolic and musculoskeletal health by enhancing nicotinamide adenine dinucleotide (NAD+) biosynthesis, mitochondrial function, and/or the activities of NAD-dependent sirtuin deacetylase enzymes. This investigation examined the impact of NRS on whole body energy homeostasis, skeletal muscle mitochondrial function, and corresponding shifts in the acetyl-lysine proteome, in the context of diet-induced obesity using C57BL/6NJ mice. The study also included a genetically modified mouse model that imposes greater demand on sirtuin flux and associated NAD+ consumption, specifically within muscle tissues. In general, whole body glucose control was marginally improved by NRS when administered at the midpoint of a chronic high-fat diet, but not when given as a preventative therapy upon initiation of the diet. Contrary to anticipated outcomes, the study produced little evidence that NRS increases tissue NAD+ levels, augments mitochondrial function, and/or mitigates diet-induced hyperacetylation of the skeletal muscle proteome.

Full Text

Duke Authors

Cited Authors

  • Williams, AS; Koves, TR; Pettway, YD; Draper, JA; Slentz, DH; Grimsrud, PA; Ilkayeva, OR; Muoio, DM

Published Date

  • January 21, 2022

Published In

Volume / Issue

  • 25 / 1

Start / End Page

  • 103635 -

PubMed ID

  • 35028529

Pubmed Central ID

  • PMC8741497

Electronic International Standard Serial Number (EISSN)

  • 2589-0042

Digital Object Identifier (DOI)

  • 10.1016/j.isci.2021.103635

Language

  • eng

Conference Location

  • United States