Cited by 338Sirtuins and Resveratrol in MedicineGenetics, Aging, and Longevity in Model OrganismsBiochemical and Molecular Research

Nicotinamide Improves Aspects of Healthspan, but Not Lifespan, in Mice

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Mitchell, Sarah J., Bernier, Michel, Aon, Miguel A., Cortassa, Sonia, Kim, Eun Young, Fang, Evandro F., Palacios, Hector H., Ali, Ahmed +15 more·2018·Cell Metabolism

Abstract

The role in longevity and healthspan of nicotinamide (NAM), the physiological precursor of NAD+, is elusive. Here, we report that chronic NAM supplementation improves healthspan measures in mice without extending lifespan. Untargeted metabolite profiling of the liver and metabolic flux analysis of liver-derived cells revealed NAM-mediated improvement in glucose homeostasis in mice on a high-fat diet (HFD) that was associated with reduced hepatic steatosis and inflammation concomitant with increased glycogen deposition and flux through the pentose phosphate and glycolytic pathways. Targeted NAD metabolome analysis in liver revealed depressed expression of NAM salvage in NAM-treated mice, an effect counteracted by higher expression of de novo NAD biosynthetic enzymes. Although neither hepatic NAD+ nor NADP+ was boosted by NAM, acetylation of some SIRT1 targets was enhanced by NAM supplementation in a diet- and NAM dose-dependent manner. Collectively, our results show health improvement in NAM-supplemented HFD-fed mice in the absence of survival effects.

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Crossref · 10.1016/j.cmet.2018.02.001

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  • NAD precursor supplementation with NR, NAM, NA, and NMN mitigates several age-associated diseases.

    “restoration of NAD levels with the NAD precursor vitamins nicotinamide riboside (NR), nicotinamide (NAM) and nicotinic acid (NA), in addition to the biosynthetic NAD precursor nicotinamide mononucleotide (NMN), appears to mitigate several age-associated diseases2-4.”
  • Long-term NAM administration prevented high-fat diet-related disease, promoting healthspan, but did not significantly affect lifespan.

    “long-term administration of NAM prevented disease related to a high-fat diet, promoting healthspan, but it did not have significant effects on lifespan200.”

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Authors
Mitchell, S. J., Bernier, M., Aon, M. A., Cortassa, S., Kim, E. Y., Fang, E. F., Palacios, H. H., Ali, A., Navas-Enamorado, I., Di Francesco, A., Kaiser, T. A., Waltz, T. B., Zhang, N., Ellis, J. L., Elliott, P. J., Frederick, D. W., Bohr, V. A., Schmidt, M. S., Brenner, C., Sinclair, D. A., Sauve, A. A., Baur, J. A., & de Cabo, R.
Affiliations
  • National Institutes of Health (US)
  • National Institute on Aging (US)
  • Cornell University (US)
  • University of Pennsylvania (US)
  • University of Iowa (US)
  • Harvard University (US)
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2018-03
Volume
27
Issue
3
Pages
667-676.e4
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2789621916
Cited by
338
References
53
Citations by year
2026: 25 · 2025: 26 · 2024: 44 · 2023: 40 · 2022: 52 · 2021: 53 · 2020: 40 · 2019: 42 · 2018: 16
FWCI
20.81
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • KRIBB Repository (submittedVersion)
Funders
  • NIH (R01 AG028730)
  • KRIBB Research Initiative Program
  • Korea Research Institute of Bioscience and Biotechnology
  • the Paul F. Glenn Foundation for Medical Research
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Molecular Research
Keywords
nicotinamide, healthspan, lifespan, NAD+ metabolism, hepatic glucose homeostasis, high-fat diet, hepatic steatosis, glycogen accumulation, pentose phosphate pathway, glycolysis, metabolic flux analysis
MeSH terms
Healthy Aging, Animals, Disease Models, Animal, Fatty Liver, Inflammation, Liver, Longevity, Mice, Inbred C57BL, NAD, Niacinamide, Oxidative Stress, Dietary Supplements, Sirtuin 1, Diet, High-Fat

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