Intravenous nicotinamide riboside elevates mouse skeletal muscle NAD+ without impacting respiratory capacity or insulin sensitivity
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Intravenous nicotinamide riboside elevates mouse skeletal muscle NAD+ without impacting respiratory capacity or insulin sensitivity. / Damgaard, Mads V.; Nielsen, Thomas S.; Basse, Astrid L.; Chubanava, Sabina; Trost, Kajetan; Moritz, Thomas; Dellinger, Ryan W.; Larsen, Steen; Treebak, Jonas T.
In: iScience, Vol. 25, No. 2, 103863, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Intravenous nicotinamide riboside elevates mouse skeletal muscle NAD+ without impacting respiratory capacity or insulin sensitivity
AU - Damgaard, Mads V.
AU - Nielsen, Thomas S.
AU - Basse, Astrid L.
AU - Chubanava, Sabina
AU - Trost, Kajetan
AU - Moritz, Thomas
AU - Dellinger, Ryan W.
AU - Larsen, Steen
AU - Treebak, Jonas T.
N1 - Publisher Copyright: © 2022 The Author(s)
PY - 2022
Y1 - 2022
N2 - In clinical trials, oral supplementation with nicotinamide riboside (NR) fails to increase muscle mitochondrial respiratory capacity and insulin sensitivity but also does not increase muscle NAD+ levels. This study tests the feasibility of chronically elevating skeletal muscle NAD+ in mice and investigates the putative effects on mitochondrial respiratory capacity, insulin sensitivity, and gene expression. Accordingly, to improve bioavailability to skeletal muscle, we developed an experimental model for administering NR repeatedly through a jugular vein catheter. Mice on a Western diet were treated with various combinations of NR, pterostilbene (PT), and voluntary wheel running, but the metabolic effects of NR and PT treatment were modest. We conclude that the chronic elevation of skeletal muscle NAD+ by the intravenous injection of NR is possible but does not affect muscle respiratory capacity or insulin sensitivity in either sedentary or physically active mice. Our data have implications for NAD+ precursor supplementation regimens.
AB - In clinical trials, oral supplementation with nicotinamide riboside (NR) fails to increase muscle mitochondrial respiratory capacity and insulin sensitivity but also does not increase muscle NAD+ levels. This study tests the feasibility of chronically elevating skeletal muscle NAD+ in mice and investigates the putative effects on mitochondrial respiratory capacity, insulin sensitivity, and gene expression. Accordingly, to improve bioavailability to skeletal muscle, we developed an experimental model for administering NR repeatedly through a jugular vein catheter. Mice on a Western diet were treated with various combinations of NR, pterostilbene (PT), and voluntary wheel running, but the metabolic effects of NR and PT treatment were modest. We conclude that the chronic elevation of skeletal muscle NAD+ by the intravenous injection of NR is possible but does not affect muscle respiratory capacity or insulin sensitivity in either sedentary or physically active mice. Our data have implications for NAD+ precursor supplementation regimens.
KW - Drugs
KW - Molecular physiology
KW - Transcriptomics
U2 - 10.1016/j.isci.2022.103863
DO - 10.1016/j.isci.2022.103863
M3 - Journal article
C2 - 35198907
AN - SCOPUS:85124310023
VL - 25
JO - iScience
JF - iScience
SN - 2589-0042
IS - 2
M1 - 103863
ER -
ID: 298120319