Cited by 145Sirtuins and Resveratrol in MedicineAdipose Tissue and MetabolismMitochondrial Function and Pathology

Nicotinamide riboside does not alter mitochondrial respiration, content or morphology in skeletal muscle from obese and insulin‐resistant men

Dollerup, Ole L., Chubanava, Sabina, Agerholm, Marianne, Søndergård, Stine D., Altıntaş, Ali, Møller, Andreas B., Høyer, Kasper F., Ringgaard, Steffen +7 more·2020·The Journal of Physiology

Abstract

Key points: This is the first long‐term human clinical trial to report on effects of nicotinamide riboside (NR) on skeletal muscle mitochondrial function, content and morphology. NR supplementation decreases nicotinamide phosphoribosyltransferase (NAMPT) protein abundance in skeletal muscle. NR supplementation does not affect NAD metabolite concentrations in skeletal muscle. Respiration, distribution and quantity of muscle mitochondria are unaffected by NR. NAMPT in skeletal muscle correlates positively with oxidative phosphorylation Complex I, sirtuin 3 and succinate dehydrogenase. Preclinical evidence suggests that the nicotinamide adenine dinucleotide (NAD + ) precursor nicotinamide riboside (NR) boosts NAD + levels and improves diseases associated with mitochondrial dysfunction. We aimed to determine if dietary NR supplementation in middle‐aged, obese, insulin‐resistant men affects mitochondrial respiration, content and morphology in skeletal muscle. In a randomized, placebo‐controlled clinical trial, 40 participants received 1000 mg NR or placebo twice daily for 12 weeks. Skeletal muscle biopsies were collected before and after the intervention. Mitochondrial respiratory capacity was determined by high‐resolution respirometry on single muscle fibres. Protein abundance and mRNA expression were measured by Western blot and quantitative PCR analyses, respectively, and in a subset of the participants (placebo n = 8; NR n = 8) we quantified mitochondrial fractional area and mitochondrial morphology by laser scanning confocal microscopy. Protein levels of nicotinamide phosphoribosyltransferase (NAMPT), an essential NAD + biosynthetic enzyme in skeletal muscle, decreased by 14% with NR. However, steady‐state NAD + levels as well as gene expression and protein abundance of other NAD + biosynthetic enzymes remained unchanged. Neither respiratory capacity of skeletal muscle mitochondria nor abundance of mitochondrial associated proteins were affected by NR. Moreover, no changes in mitochondrial fractional area or network morphology were observed. Our data do not support the hypothesis that dietary NR supplementation has significant impact on skeletal muscle mitochondria in obese and insulin‐resistant men. Future studies on the effects of NR on human skeletal muscle may include both sexes and potentially provide comparisons between young and older people.

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Crossref · 10.1113/jp278752

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  • NR and NMN supplementation exhibited minimal or no efficacy against aging and age-associated diseases in several clinical trials.

    “However, NR and NMN supplementation exhibited minimal or no efficacy against aging and age-associated diseases in several clinical trials, suggesting that further investigation of NAD+ metabolism is necessary (20, 21).”
  • Human studies of exogenous NAD+ precursors such as nicotinamide riboside have not shown improved muscle function nor increased muscle NAD+.

    “these approaches have not shown improved muscle function [179], nor have they shown increased muscle NAD+ [180, 181].”

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Authors
Dollerup, O. L., Chubanava, S., Agerholm, M., Søndergård, S. D., Altıntaş, A., Møller, A. B., Høyer, K. F., Ringgaard, S., Stødkilde‐Jørgensen, H., Lavery, G. G., Barrès, R., Larsen, S., Prats, C., Jessen, N., & Treebak, J. T.
Affiliations
  • University of Copenhagen (DK)
  • Aarhus University (DK)
  • Aarhus University Hospital (DK)
  • University of Birmingham (GB)
Corresponding author
Treebak, Jonas T.
Venue
The Journal of Physiology
Publisher
Wiley
Published
2019-12-26
Volume
598
Issue
4
Pages
731-754
ISSN
  • 0022-3751 (ISSN-L)
  • 1469-7793
OpenAlex
W2984413344
Cited by
145
References
76
Citations by year
2026: 13 · 2025: 14 · 2024: 20 · 2023: 25 · 2022: 26 · 2021: 28 · 2020: 18 · 2019: 1
FWCI
9.62
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
  • Novo Nordisk Fonden (NNF14OC0009315, NNF13OC0003882)
  • Det Frie Forskningsråd (DFF 4004‐00235)
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 › Mitochondrial Function and Pathology
Keywords
nicotinamide riboside, NAD+ precursors, skeletal muscle mitochondria, mitochondrial respiration, mitochondrial morphology, mitochondrial content, visfatin, NAD biosynthesis, obesity, insulin resistance, oxidative phosphorylation, SIRT3, succinate dehydrogenase
MeSH terms
Humans, Insulin Resistance, Male, Middle Aged, Mitochondria, Muscle, NAD, Niacinamide, Obesity, Pyridinium Compounds, Muscle, Skeletal, Nicotinamide Phosphoribosyltransferase

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