Abstract
Chronic obstructive pulmonary disease (COPD) is a progressive, incurable disease associated with smoking and advanced age, ranking as the third leading cause of death worldwide. DNA damage and loss of the central metabolite nicotinamide adenine dinucleotide (NAD+) may contribute to both aging and COPD, presenting a potential avenue for interventions. In this randomized, double-blind, placebo-controlled clinical trial, we treated patients with stable COPD (n = 40) with the NAD+ precursor nicotinamide riboside (NR) for 6 weeks and followed-up 12 weeks later. The primary outcome was change in sputum interleukin-8 (IL-8) from baseline to week 6. The estimated treatment difference between NR and placebo in IL-8 after 6 weeks was −52.6% (95% confidence interval (CI): −75.7% to −7.6%; P = 0.030). This effect persisted until the follow-up 12 weeks after the end of treatment (−63.7%: 95% CI −85.7% to −7.8%; P = 0.034). For secondary outcomes, NR treatment increased NAD+ levels by more than twofold in whole blood, whereas IL-6 levels in plasma remained unchanged. In exploratory analyses, treatment with NR showed indications of upregulated gene pathways related to genomic integrity in the airways and reduced epigenetic aging, possibly through a reduction in cellular senescence. These exploratory analyses need to be confirmed in future trials. ClinicalTrials.gov identifier: NCT04990869.
Originalsprog | Engelsk |
---|---|
Tidsskrift | Nature Aging |
Vol/bind | 4 |
Udgave nummer | 12 |
Sider (fra-til) | 1772–1781 |
Antal sider | 10 |
ISSN | 2662-8465 |
DOI | |
Status | Udgivet - 2024 |
Bibliografisk note
Funding Information:M.S.-K. is supported by the Novo Nordisk Foundation Challenge Programme (NNF17OC0027812), the Nordea Foundation (02-2017-1749), the Neye Foundation, the Lundbeck Foundation (R324-2019-1492), the Ministry of Higher Education and Science (0238-00003B), VitaDAO and Insilico Medicine. K.L.N. is supported by the Carl og Ellen Hertz\u02BC legat til Dansk L\u00E6ge- og Naturvidenskab (5.21.1). J.T.T. and M.V.D. were supported by the Novo Nordisk Foundation Center for Basic Metabolic Research (CBMR). The CBMR is an independent research center at the University of Copenhagen and is partially funded by an unrestricted donation (NNF18CC0034900) from the Novo Nordisk Foundation. M.V.D. was also supported by a PhD scholarship from the Danish Diabetes Academy, which is funded by the Novo Nordisk Foundation (NNF17SA0031406). Elysium Health (New York) provided the NR and placebo capsules and funded and carried out the DNA methylation analyses. The funders had no role in study design, data collection, decision to publish or preparation of the manuscript.
Publisher Copyright:
© The Author(s) 2024.