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Jensen JB, Dollerup OL, Møller AB, Billeskov TB, Dalbram E, Chubanava S, Damgaard MV, Dellinger RW, Trošt K, Moritz T, Ringgaard S, Møller N, Treebak JT, Farup J, Jessen N. A randomized placebo-controlled trial of nicotinamide riboside+pterostilbene supplementation in experimental muscle injury in elderly subjects. JCI Insight 2022; 7:158314. [PMID: 35998039 DOI: 10.1172/jci.insight.158314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 08/19/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND During ageing there is a functional decline in the pool of muscle stem cells (MuSCs) which influences the functional and regenerative capacity of skeletal muscle. Preclinical evidence have suggested that Nicotinamide Riboside (NR) and Pterostilbene (PT) can improve muscle regeneration e.g. by increasing MuSC function. The objective of the present study was to investigate if NRPT-supplementation promotes skeletal muscle regeneration after muscle injury in elderly humans by improved recruitment of MuSCs. METHODS 32 elderly men and women (55-80 yr) were randomized to daily supplementation with either NRPT (1000 mg NR + 200 mg PT) or matched placebo. Two weeks after initiation of supplementation, a skeletal muscle injury was induced by electrically-induced eccentric muscle work. Skeletal muscle biopsies were obtained pre, 2h, 2, 8, and 30 days post injury. RESULTS A substantial skeletal muscle injury was induced by the protocol and associated with release of myoglobin and creatine kinase, muscle soreness, tissue edema, and a decrease in muscle strength. MuSC content, proliferation and cell size revealed a large demand for recruitment post injury but was not affected by NRPT. Furthermore, histological analyses of muscle fiber area, internal nuclei and embryonic Myosin Heavy Chain showed no effect of NRPT supplementation. CONCLUSION Daily supplementation with 1000 mg NR+200 mg PT is safe but does not improve recruitment of the MuSC pool or other measures of muscle recovery in response to injury or subsequent regeneration in elderly subjects. TRIAL REGISTRATION NCT03754842. FUNDING Novo Nordisk Foundation (Ref. NNF17OC0027242) given to JTT and NJ. JTT, ED, SC, MVD, KT, and TM are supported by the Novo Nordisk Foundation Center for Basic Metabolic Research (CBMR). CBMR is an independent Research Center at the University of Copenhagen that is partially funded by an unrestricted donation from the Novo Nordisk Foundation (NNF18CC0034900).
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Affiliation(s)
| | | | | | - Tine B Billeskov
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Emilie Dalbram
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Sabina Chubanava
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Mads V Damgaard
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Ryan W Dellinger
- Elysium Health, Elysium Health, New York, United States of America
| | - Kajetan Trošt
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Moritz
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | | | - Niels Møller
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Jonas T Treebak
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Jean Farup
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Niels Jessen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Jensen JB, Møller AB, Just J, Mose M, de Paoli FV, Billeskov TB, Fred RG, Pers TH, Pedersen SB, Petersen KK, Bjerre M, Farup J, Jessen N. Isolation and characterization of muscle stem cells, fibro-adipogenic progenitors, and macrophages from human skeletal muscle biopsies. Am J Physiol Cell Physiol 2021; 321:C257-C268. [PMID: 34106790 DOI: 10.1152/ajpcell.00127.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Animal models clearly illustrate that the maintenance of skeletal muscle mass depends on the function and interaction of a heterogeneous population of resident and infiltrating mononuclear cells. Several lines of evidence suggest that mononuclear cells also play a role in muscle wasting in humans, and targeting these cells may open new treatment options for intervention or prevention in sarcopenia. Methodological and ethical constraints have perturbed exploration of the cellular characteristics and function of mononuclear cells in human skeletal muscle. Thus, investigations of cellular phenotypes often depend on immunohistochemical analysis of small tissue samples obtained by needle biopsies, which do not match the deep phenotyping of mononuclear cells obtained from animal models. Here, we have developed a protocol for fluorescence-activated cell sorting (FACS), based on single-cell RNA-sequencing data, for quantifying and characterizing mononuclear cell populations in human skeletal muscle. Muscle stem cells, fibro-adipogenic progenitors, and two subsets of macrophages (CD11c+/-) are present in needle biopsies in comparable quantities per milligram tissue to open surgical biopsies. We find that direct cell isolation is preferable due to a substantial shift in transcriptome when using preculture before the FACS procedure. Finally, in vitro validation of the cellular phenotype of muscle stem cells, fibro-adipogenic progenitors, and macrophages confirms population-specific traits. This study demonstrates that mononuclear cell populations can be quantified and subsequently analyzed from needle biopsy material and opens the perspective for future clinical studies of cellular mechanisms in muscle wasting.
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Affiliation(s)
- Jonas B Jensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Research Laboratory for Biochemical Pathology, Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Andreas B Møller
- Research Laboratory for Biochemical Pathology, Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Jesper Just
- Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Maike Mose
- Medical Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Diabetes and Hormonal Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Frank V de Paoli
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Tine B Billeskov
- Research Laboratory for Biochemical Pathology, Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.,Medical Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Rikard G Fred
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Tune H Pers
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Steen B Pedersen
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.,Medical Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Diabetes and Hormonal Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Klaus K Petersen
- Department of Orthopedic Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Mette Bjerre
- Medical Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Jean Farup
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Research Laboratory for Biochemical Pathology, Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Niels Jessen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Research Laboratory for Biochemical Pathology, Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
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