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nicotinamide riboside

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https://www.readbyqxmd.com/read/28923496/deficiency-of-the-mitochondrial-nad-kinase-causes-stress-induced-hepatic-steatosis-in-mice
#1
Kezhong Zhang, Hyunbae Kim, Zhiyao Fu, Yining Qiu, Zhao Yang, Jiemei Wang, Deqiang Zhang, Xin Tong, Lei Yin, Jing Li, Jianmei Wu, Nathan R Qi, Sander M Houten, Ren Zhang
BACKGROUND & AIMS: The mitochondrial nicotinamide adenine dinucleotide (NAD) kinase (NADK2, also called MNADK) catalyzes phosphorylation of NAD to yield NADP. Little is known about the functions of mitochondrial NADP and MNADK in liver physiology and pathology. We investigated the effects of reduced mitochondrial NADP by deleting MNADK in mice. METHODS: We generated MNADK-knockout (KO) mice on a C57BL/6NTac background; mice with a wild-type Mnadk gene were used as controls...
September 15, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28842432/nicotinamide-riboside-a-form-of-vitamin-b3-protects-against-excitotoxicity-induced-axonal-degeneration
#2
Pauline Vaur, Bernard Brugg, Mathias Mericskay, Zhenlin Li, Mark S Schmidt, Denis Vivien, Cyrille Orset, Etienne Jacotot, Charles Brenner, Eric Duplus
NAD(+) depletion is a common phenomenon in neurodegenerative pathologies. Excitotoxicity occurs in multiple neurologic disorders and NAD(+) was shown to prevent neuronal degeneration in this process through mechanisms that remained to be determined. The activity of nicotinamide riboside (NR) in neuroprotective models and the recent description of extracellular conversion of NAD(+) to NR prompted us to probe the effects of NAD(+) and NR in protection against excitotoxicity. Here, we show that intracortical administration of NR but not NAD(+) reduces brain damage induced by NMDA injection...
August 21, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28813682/circadian-and-feeding-rhythms-orchestrate-the-diurnal-liver-acetylome
#3
Daniel Mauvoisin, Florian Atger, Loïc Dayon, Antonio Núñez Galindo, Jingkui Wang, Eva Martin, Laetitia Da Silva, Ivan Montoliu, Sebastiano Collino, Francois-Pierre Martin, Joanna Ratajczak, Carles Cantó, Martin Kussmann, Felix Naef, Frédéric Gachon
Lysine acetylation is involved in various biological processes and is considered a key reversible post-translational modification in the regulation of gene expression, enzyme activity, and subcellular localization. This post-translational modification is therefore highly relevant in the context of circadian biology, but its characterization on the proteome-wide scale and its circadian clock dependence are still poorly described. Here, we provide a comprehensive and rhythmic acetylome map of the mouse liver...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28752046/nicotinamide-riboside-kinases-display-redundancy-in-mediating-nicotinamide-mononucleotide-and-nicotinamide-riboside-metabolism-in-skeletal-muscle-cells
#4
Rachel S Fletcher, Joanna Ratajczak, Craig L Doig, Lucy A Oakey, Rebecca Callingham, Gabriella Da Silva Xavier, Antje Garten, Yasir S Elhassan, Philip Redpath, Marie E Migaud, Andrew Philp, Charles Brenner, Carles Canto, Gareth G Lavery
OBJECTIVE: Augmenting nicotinamide adenine dinucleotide (NAD(+)) availability may protect skeletal muscle from age-related metabolic decline. Dietary supplementation of NAD(+) precursors nicotinamide mononucleotide (NMN) and nicotinamide riboside (NR) appear efficacious in elevating muscle NAD(+). Here we sought to identify the pathways skeletal muscle cells utilize to synthesize NAD(+) from NMN and NR and provide insight into mechanisms of muscle metabolic homeostasis. METHODS: We exploited expression profiling of muscle NAD(+) biosynthetic pathways, single and double nicotinamide riboside kinase 1/2 (NRK1/2) loss-of-function mice, and pharmacological inhibition of muscle NAD(+) recycling to evaluate NMN and NR utilization...
August 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28484725/nicotinamide-riboside-or-il-17a-signaling-blockers-to-prevent-liver-disorders
#5
EDITORIAL
Ana Teijeiro, Nabil Djouder
No abstract text is available yet for this article.
January 2017: Oncoscience
https://www.readbyqxmd.com/read/28356339/nicotinamide-phosphoribosyltransferase-in-smooth-muscle-cells-maintains-genome-integrity-resists-aortic-medial-degeneration-and-is-suppressed-in-human-thoracic-aortic-aneurysm-disease
#6
Alanna Watson, Zengxuan Nong, Hao Yin, Caroline O'Neil, Stephanie Fox, Brittany Balint, Linrui Guo, Oberdan Leo, Michael W A Chu, Robert Gros, J Geoffrey Pickering
RATIONALE: The thoracic aortic wall can degenerate over time with catastrophic consequences. Vascular smooth muscle cells (SMCs) can resist and repair artery damage, but their capacities decline with age and stress. Recently, cellular production of nicotinamide adenine dinucleotide (NAD(+)) via nicotinamide phosphoribosyltransferase (Nampt) has emerged as a mediator of cell vitality. However, a role for Nampt in aortic SMCs in vivo is unknown. OBJECTIVES: To determine whether a Nampt-NAD(+) control system exists within the aortic media and is required for aortic health...
June 9, 2017: Circulation Research
https://www.readbyqxmd.com/read/28346814/nicotinamide-riboside-a-form-of-vitamin-b3-and-nad-precursor-relieves-the-nociceptive-and-aversive-dimensions-of-paclitaxel-induced-peripheral-neuropathy-in-female-rats
#7
Marta V Hamity, Stephanie R White, Roxanne Y Walder, Mark S Schmidt, Charles Brenner, Donna L Hammond
Injury to sensory afferents may contribute to the peripheral neuropathies that develop after administration of chemotherapeutic agents. Manipulations that increase levels of nicotinamide adenine dinucleotide (NAD) can protect against neuronal injury. This study examined whether nicotinamide riboside (NR), a third form of vitamin B3 and precursor of NAD, diminishes tactile hypersensitivity and place escape-avoidance behaviors in a rodent model of paclitaxel-induced peripheral neuropathy. Female Sprague-Dawley rats received 3 intravenous injections of 6...
May 2017: Pain
https://www.readbyqxmd.com/read/28330104/purification-and-characterization-of-the-enzymes-involved-in-nicotinamide-adenine-dinucleotide-degradation-by-penicillium-brevicompactum-nrc-829
#8
Thanaa Hamed Ali, Dina Helmy El-Ghonemy
The present study was conducted to investigate a new pathway for the degradation of nicotinamide adenine dinucleotide (NAD) by Penicillium brevicompactum NRC 829 extracts. Enzymes involved in the hydrolysis of NAD, i.e. alkaline phosphatase, aminohydrolase and glycohydrolase were determined. Alkaline phosphatase was found to catalyse the sequential hydrolysis of two phosphate moieties of NAD molecule to nicotinamide riboside plus adenosine. Adenosine was then deaminated by aminohydrolase to inosine and ammonia...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28216063/the-nad-precursor-nicotinic-acid-improves-genomic-integrity-in-human-peripheral-blood-mononuclear-cells-after-x-irradiation
#9
Kathrin Weidele, Sascha Beneke, Alexander Bürkle
NAD(+) is an essential cofactor for enzymes catalyzing redox-reactions as well as an electron carrier in energy metabolism. Aside from this, NAD(+) consuming enzymes like poly(ADP-ribose) polymerases and sirtuins are important regulators involved in chromatin-restructuring processes during repair and epigenetics/transcriptional adaption. In order to replenish cellular NAD(+) levels after cleavage, synthesis starts from precursors such as nicotinamide, nicotinamide riboside or nicotinic acid to match the need for this essential molecule...
April 2017: DNA Repair
https://www.readbyqxmd.com/read/28211258/effects-of-a-wide-range-of-dietary-nicotinamide-riboside-nr-concentrations-on-metabolic-flexibility-and-white-adipose-tissue-wat-of-mice-fed-a-mildly-obesogenic-diet
#10
Wenbiao Shi, Maria A Hegeman, Dorien A M van Dartel, Jing Tang, Manuel Suarez, Hans Swarts, Bart van der Hee, Lluis Arola, Jaap Keijer
SCOPE: Metabolic flexibility is the ability to switch metabolism between carbohydrate oxidation (CHO) and fatty acid oxidation (FAO) and is a biomarker for metabolic health. The effect on metabolic health of nicotinamide riboside (NR) as an exclusive source of vitamin B3 is unknown and is examined here for a wide range of NR. DESIGN AND METHODS: Nine-week-old male C57BL/6JRcc mice received a semi-purified mildly obesogenic (40 en% fat) diet containing 0.14% L-tryptophan and either 5, 15, 30, 180, or 900 mg NR per kg diet for 15 weeks...
August 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28042675/1-h-nmr-based-metabolomics-study-for-identifying-urinary-biomarkers-and-perturbed-metabolic-pathways-associated-with-severity-of-iga-nephropathy-a-pilot-study
#11
Shiva Kalantari, Mohsen Nafar, Shiva Samavat, Mahmoud Parvin
The severity of IgA nephropathy (IgAN), the most common primary glomerulonephritis, is judged on the basis of histologic and clinical features. A limited number of studies have considered molecular signature of IgAN for this issue, and no reliable biomarkers have been presented non-invasively for use in patient evaluations. This study aims to identify metabolite markers excreted in the urine and impaired pathways that are associated with a known marker of severity (proteinuria) to predict mild and severe stages of IgAN...
January 1, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/27979136/simultaneous-quantitation-of-nicotinamide-riboside-nicotinamide-mononucleotide-and-nicotinamide-adenine-dinucleotide-in-milk-by-a-novel-enzyme-coupled-assay
#12
Simone Ummarino, Massimo Mozzon, Federica Zamporlini, Adolfo Amici, Francesca Mazzola, Giuseppe Orsomando, Silverio Ruggieri, Nadia Raffaelli
Nicotinamide riboside, the most recently discovered form of vitamin B3, and its phosphorylated form nicotinamide mononucleotide, have been shown to be potent supplements boosting intracellular nicotinamide adenine dinucleotide (NAD) levels, thus preventing or ameliorating metabolic and mitochondrial diseases in mouse models. Here we report for the first time on the simultaneous quantitation of nicotinamide riboside, nicotinamide mononucleotide and NAD in milk by means of a fluorometric, enzyme-coupled assay...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27924925/replicatively-senescent-human-fibroblasts-reveal-a-distinct-intracellular-metabolic-profile-with-alterations-in-nad-and-nicotinamide-metabolism
#13
Emma L James, James A E Lane, Ryan D Michalek, Edward D Karoly, E Kenneth Parkinson
Cellular senescence occurs by proliferative exhaustion (PEsen) or following multiple cellular stresses but had not previously been subject to detailed metabolomic analysis. Therefore, we compared PEsen fibroblasts with proliferating and transiently growth arrested controls using a combination of different mass spectroscopy techniques. PEsen cells showed many specific alterations in both the NAD+ de novo and salvage pathways including striking accumulations of nicotinamide mononucleotide (NMN) and nicotinamide riboside (NR) in the amidated salvage pathway despite no increase in nicotinamide phosphoribosyl transferase or in the NR transport protein, CD73...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27809334/nicotinamide-adenine-dinucleotide-biosynthesis-promotes-liver-regeneration
#14
Sarmistha Mukherjee, Karthikeyani Chellappa, Andrea Moffitt, Joan Ndungu, Ryan W Dellinger, James G Davis, Beamon Agarwal, Joseph A Baur
The regenerative capacity of the liver is essential for recovery from surgical resection or injuries induced by trauma or toxins. During liver regeneration, the concentration of nicotinamide adenine dinucleotide (NAD) falls, at least in part due to metabolic competition for precursors. To test whether NAD availability restricts the rate of liver regeneration, we supplied nicotinamide riboside (NR), an NAD precursor, in the drinking water of mice subjected to partial hepatectomy. NR increased DNA synthesis, mitotic index, and mass restoration in the regenerating livers...
February 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27798264/nad-repletion-improves-muscle-function-in-muscular-dystrophy-and-counters-global-parylation
#15
Dongryeol Ryu, Hongbo Zhang, Eduardo R Ropelle, Vincenzo Sorrentino, Davi A G Mázala, Laurent Mouchiroud, Philip L Marshall, Matthew D Campbell, Amir Safi Ali, Gary M Knowels, Stéphanie Bellemin, Shama R Iyer, Xu Wang, Karim Gariani, Anthony A Sauve, Carles Cantó, Kevin E Conley, Ludivine Walter, Richard M Lovering, Eva R Chin, Bernard J Jasmin, David J Marcinek, Keir J Menzies, Johan Auwerx
Neuromuscular diseases are often caused by inherited mutations that lead to progressive skeletal muscle weakness and degeneration. In diverse populations of normal healthy mice, we observed correlations between the abundance of mRNA transcripts related to mitochondrial biogenesis, the dystrophin-sarcoglycan complex, and nicotinamide adenine dinucleotide (NAD(+)) synthesis, consistent with a potential role for the essential cofactor NAD(+) in protecting muscle from metabolic and structural degeneration. Furthermore, the skeletal muscle transcriptomes of patients with Duchene's muscular dystrophy (DMD) and other muscle diseases were enriched for various poly[adenosine 5'-diphosphate (ADP)-ribose] polymerases (PARPs) and for nicotinamide N-methyltransferase (NNMT), enzymes that are major consumers of NAD(+) and are involved in pleiotropic events, including inflammation...
October 19, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27769837/ligand-binding-phenomena-that-pertain-to-the-metabolic-function-of-renalase
#16
Brett A Beaupre, Joseph V Roman, Matthew R Hoag, Kathleen M Meneely, Nicholas R Silvaggi, Audrey L Lamb, Graham R Moran
Renalase catalyzes the oxidation of isomers of β-NAD(P)H that carry the hydride in the 2 or 6 positions of the nicotinamide base to form β-NAD(P)(+). This activity is thought to alleviate inhibition of multiple β-NAD(P)-dependent enzymes of primary and secondary metabolism by these isomers. Here we present evidence for a variety of ligand binding phenomena relevant to the function of renalase. We offer evidence of the potential for primary metabolism inhibition with structures of malate dehydrogenase and lactate dehydrogenase bound to the 6-dihydroNAD isomer...
December 15, 2016: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/27732834/overcoming-atm-deficiency-by-activating-the-nad-sirt1-axis
#17
COMMENT
Leonard Guarente
In this issue, Fang et al. (2016) show that both the DNA repair defect and mitochondrial dysfunction in ATM(-/-) cells or mice are mitigated by the anti-aging compound nicotinamide riboside or a SIRT1 activator. This broad suppression by activating the NAD(+)/SIRT1 axis may generally apply to diseases and aging maladies.
October 11, 2016: Cell Metabolism
https://www.readbyqxmd.com/read/27725675/nrk1-controls-nicotinamide-mononucleotide-and-nicotinamide-riboside-metabolism-in-mammalian-cells
#18
Joanna Ratajczak, Magali Joffraud, Samuel A J Trammell, Rosa Ras, Núria Canela, Marie Boutant, Sameer S Kulkarni, Marcelo Rodrigues, Philip Redpath, Marie E Migaud, Johan Auwerx, Oscar Yanes, Charles Brenner, Carles Cantó
NAD(+) is a vital redox cofactor and a substrate required for activity of various enzyme families, including sirtuins and poly(ADP-ribose) polymerases. Supplementation with NAD(+) precursors, such as nicotinamide mononucleotide (NMN) or nicotinamide riboside (NR), protects against metabolic disease, neurodegenerative disorders and age-related physiological decline in mammals. Here we show that nicotinamide riboside kinase 1 (NRK1) is necessary and rate-limiting for the use of exogenous NR and NMN for NAD(+) synthesis...
October 11, 2016: Nature Communications
https://www.readbyqxmd.com/read/27721479/nicotinamide-riboside-is-uniquely-and-orally-bioavailable-in-mice-and-humans
#19
Samuel A J Trammell, Mark S Schmidt, Benjamin J Weidemann, Philip Redpath, Frank Jaksch, Ryan W Dellinger, Zhonggang Li, E Dale Abel, Marie E Migaud, Charles Brenner
Nicotinamide riboside (NR) is in wide use as an NAD(+) precursor vitamin. Here we determine the time and dose-dependent effects of NR on blood NAD(+) metabolism in humans. We report that human blood NAD(+) can rise as much as 2.7-fold with a single oral dose of NR in a pilot study of one individual, and that oral NR elevates mouse hepatic NAD(+) with distinct and superior pharmacokinetics to those of nicotinic acid and nicotinamide. We further show that single doses of 100, 300 and 1,000 mg of NR produce dose-dependent increases in the blood NAD(+) metabolome in the first clinical trial of NR pharmacokinetics in humans...
October 10, 2016: Nature Communications
https://www.readbyqxmd.com/read/27645507/boronate-affinity-electrophoresis-for-the-purification-and-analysis-of-cofactor-modified-rnas
#20
Gabriele Nübel, Frieda A Sorgenfrei, Andres Jäschke
RNA modifications are widely distributed in Nature, and their thorough analysis helps answering fundamental biological questions. Nowadays, mass spectrometry or deep-sequencing methods are often used for the analysis. With the raising number of newly discovered RNA modifications, such as the 5'-NAD cap in Escherichia coli, there is an important need for new, less complex and fast analytical tools to analyze the occurrence, amount, and distribution of modified RNAs in cells. To accomplish this task, we have revisited the previously developed affinity gel electrophoresis principles and copolymerized acryloylaminophenyl boronic acid (APB) in standard denaturing polyacrylamide gels to retard the NAD- or FAD-modified RNAs compared to the unmodified RNAs in the gels...
March 15, 2017: Methods: a Companion to Methods in Enzymology
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