Cited by 367Sirtuins and Resveratrol in MedicineAdipose Tissue and MetabolismBiochemical and Molecular Research

Loss of NAD Homeostasis Leads to Progressive and Reversible Degeneration of Skeletal Muscle

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Frederick, David W., Loro, Emanuele, Liu, Ling, Davila, Antonio, Chellappa, Karthikeyani, Silverman, Ian M., Quinn, William J., Gosai, Sager J. +11 more·2016·Cell Metabolism

Abstract

NAD is an obligate co-factor for the catabolism of metabolic fuels in all cell types. However, the availability of NAD in several tissues can become limited during genotoxic stress and the course of natural aging. The point at which NAD restriction imposes functional limitations on tissue physiology remains unknown. We examined this question in murine skeletal muscle by specifically depleting Nampt, an essential enzyme in the NAD salvage pathway. Knockout mice exhibited a dramatic 85% decline in intramuscular NAD content, accompanied by fiber degeneration and progressive loss of both muscle strength and treadmill endurance. Administration of the NAD precursor nicotinamide riboside rapidly ameliorated functional deficits and restored muscle mass despite having only a modest effect on the intramuscular NAD pool. Additionally, lifelong overexpression of Nampt preserved muscle NAD levels and exercise capacity in aged mice, supporting a critical role for tissue-autonomous NAD homeostasis in maintaining muscle mass and function.

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Crossref · 10.1016/j.cmet.2016.07.005

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Authors
Frederick, D. W., Loro, E., Liu, L., Davila, A., Chellappa, K., Silverman, I. M., Quinn, W. J., Gosai, S. J., Tichy, E. D., Davis, J. G., Mourkioti, F., Gregory, B. D., Dellinger, R. W., Redpath, P., Migaud, M. E., Nakamaru-Ogiso, E., Rabinowitz, J. D., Khurana, T. S., & Baur, J. A.
Affiliations
  • University of Pennsylvania (US)
  • Princeton University (US)
  • ChromaDex (United States) (US)
  • Queen's University Belfast (GB)
Corresponding author
Baur, Joseph A.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2016-08
Volume
24
Issue
2
Pages
269-282
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2499764253
Cited by
367
References
39
Citations by year
2026: 16 · 2025: 43 · 2024: 34 · 2023: 38 · 2022: 49 · 2021: 44 · 2020: 40 · 2019: 39 · 2018: 35 · 2017: 25 · 2016: 4
FWCI
19.78
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Research Portal (Queen's University Belfast) (submittedVersion)
Funders
  • Biotechnology and Biological Sciences Research Council (BB/N001842/1)
  • National Institute on Aging (R01AG043483)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK019525, R01DK098656)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (P30AR050950, P30AR069619)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Molecular Research
Keywords
NAD+ homeostasis, skeletal muscle degeneration, visfatin, NAD+ salvage pathway, nicotinamide riboside, muscle fiber degeneration, muscle strength, exercise capacity, aging, muscle mass, NAD+ depletion, genotoxic stress
MeSH terms
Administration, Oral, Aging, Animals, Biological Availability, Energy Metabolism, Glucose, Homeostasis, Inflammation, Mice, Inbred C57BL, Mitochondria, NAD, Necrosis, Niacinamide, Organ Size, Physical Conditioning, Animal, Pyridinium Compounds, Transcription, Genetic, Mice, Knockout, Muscle, Skeletal, Muscle Strength, Nicotinamide Phosphoribosyltransferase

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