Cited by 163Sirtuins and Resveratrol in MedicineNeurological Disease Mechanisms and TreatmentsBarrier Structure and Function Studies

Nicotinamide mononucleotide (NMN) supplementation promotes neurovascular rejuvenation in aged mice: transcriptional footprint of SIRT1 activation, mitochondrial protection, anti-inflammatory, and anti-apoptotic effects

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Kiss, Tamas, Nyúl-Tóth, Ádám, Balasubramanian, Priya, Tarantini, Stefano, Ahire, Chetan, Yabluchanskiy, Andriy, Csipo, Tamas, Farkas, Eszter +4 more·2020·GeroScience

Abstract

Aging-induced structural and functional alterations of the neurovascular unit lead to impairment of neurovascular coupling responses, dysregulation of cerebral blood flow, and increased neuroinflammation, all of which contribute importantly to the pathogenesis of age-related vascular cognitive impairment (VCI). There is increasing evidence showing that a decrease in NAD+ availability with age plays a critical role in age-related neurovascular and cerebromicrovascular dysfunction. Our recent studies demonstrate that restoring cellular NAD+ levels in aged mice rescues neurovascular function, increases cerebral blood flow, and improves performance on cognitive tasks. To determine the effects of restoring cellular NAD+ levels on neurovascular gene expression profiles, 24-month-old C57BL/6 mice were treated with nicotinamide mononucleotide (NMN), a key NAD+ intermediate, for 2 weeks. Transcriptome analysis of preparations enriched for cells of the neurovascular unit was performed by RNA-seq. Neurovascular gene expression signatures in NMN-treated aged mice were compared with those in untreated young and aged control mice. We identified 590 genes differentially expressed in the aged neurovascular unit, 204 of which are restored toward youthful expression levels by NMN treatment. The transcriptional footprint of NMN treatment indicates that increased NAD+ levels promote SIRT1 activation in the neurovascular unit, as demonstrated by analysis of upstream regulators of differentially expressed genes as well as analysis of the expression of known SIRT1-dependent genes. Pathway analysis predicts that neurovascular protective effects of NMN are mediated by the induction of genes involved in mitochondrial rejuvenation, anti-inflammatory, and anti-apoptotic pathways. In conclusion, the recently demonstrated protective effects of NMN treatment on neurovascular function can be attributed to multifaceted sirtuin-mediated anti-aging changes in the neurovascular transcriptome. Our present findings taken together with the results of recent studies using mitochondria-targeted interventions suggest that mitochondrial rejuvenation is a critical mechanism to restore neurovascular health and improve cerebral blood flow in aging.

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  • NMN administration in mice restores NAD+ levels and ameliorates mitochondrial function.

    “Studies of the NAD+ precursor, nicotinamide mononucleotide (NMN) administration in mice have been somewhat promising at restoring NAD+ levels and ameliorating mitochondrial function185.”

    From SARS-CoV-2, COVID-19 and the aging immune system (2021) · cites this paper as [185]

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Authors
Kiss, T., Nyúl-Tóth, Á., Balasubramanian, P., Tarantini, S., Ahire, C., Yabluchanskiy, A., Csipo, T., Farkas, E., Wren, J. D., Garman, L., Csiszar, A., & Ungvari, Z.
Affiliations
  • University of Oklahoma Health Sciences Center (US)
  • Semmelweis University (HU)
  • University of Szeged (HU)
  • Oklahoma Medical Research Foundation (US)
Corresponding author
Ungvari, Zoltan
Venue
GeroScience
Published
2020-02-13
Volume
42
Issue
2
Pages
527-546
ISSN
  • 2152-4041 (ISSN-L)
  • 2509-2715
  • 2509-2723
OpenAlex
W3006183612
Cited by
163
References
106
Citations by year
2026: 17 · 2025: 28 · 2024: 34 · 2023: 32 · 2022: 23 · 2021: 16 · 2020: 12 · 2019: 1
FWCI
10.87
Type
journal article
Language
en
Open access
Locations
  • GeroScience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • SZTE Publicatio Repozitórium (University of Szeged) (acceptedVersion, other-oa)
  • Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) (acceptedVersion)
  • University of Debrecen Electronic Archive (University of Debrecen) (submittedVersion)
Funders
National Institute on Aging (T32AG052363, 1P20GM125528)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
nicotinamide mononucleotide, NAD+ supplementation, neurovascular unit, neurovascular coupling, cerebral blood flow, SIRT1, neuroinflammation, apoptosis, transcriptome, aging, sirtuins
MeSH terms
Animals, Anti-Inflammatory Agents, Mice, Inbred C57BL, Mitochondria, Nicotinamide Mononucleotide, Rejuvenation, United States, Dietary Supplements, Mice, Sirtuin 1

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