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Morifuji M, Higashi S, Ebihara S, Nagata M. Ingestion of β-nicotinamide mononucleotide increased blood NAD levels, maintained walking speed, and improved sleep quality in older adults in a double-blind randomized, placebo-controlled study. GeroScience 2024; 46:4671-4688. [PMID: 38789831 PMCID: PMC11336149 DOI: 10.1007/s11357-024-01204-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
The study evaluated how ingestion of nicotinamide mononucleotide (NMN) for 12 weeks by older adults affected blood nicotinamide adenine dinucleotide (NAD +) levels and physical function, particularly walking function. Information concerning sleep, and stress was also collected as secondary endpoints. In this randomized, placebo-controlled, double-blind, parallel-group comparison study, 60 participants were randomly allocated into a placebo group or NMN group. Members of the NMN group consumed 250 mg/day NMN for 12 weeks. Motor function tests, blood NAD metabolite analysis, and questionnaires were conducted at the start of the study and 4 and 12 weeks after intake. This trial was registered at umin.ac.jp/ctr as UMIN000047871 on June 22nd, 2022.At primary outcome, at both 4 weeks and 12 weeks, the NMN and placebo groups had no significant differences in a stepping test. At secondary outcomes, after 12 weeks of NMN intake, the NMN group had a significantly shorter 4-m walking time than the placebo group as well as significantly higher blood levels of NAD + and its metabolites. A significant negative correlation was observed between the change in the 4-m walking time and the change in blood NAD + , N1-methyl-2-pridone-5-carboxamide (2-PY), and N1-methyl-4-pridone-3-carboxamide (4-PY) at 12 weeks. The NMN group had improved sleep quality at 12 weeks relative to the placebo group as evidenced by lower scores for "Daytime dysfunction" and "Global PSQI" on the Pittsburgh Sleep Questionnaire. No adverse effects related to test substance consumption were observed. Together, these results indicate that NMN intake could increase blood NAD + levels, maintain walking speed, and improve sleep quality in older adults. Interventions involving NMN aimed at maintaining walking speed could contribute to extended healthy life expectancy.
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Affiliation(s)
- Masashi Morifuji
- Wellness Science Labs, Meiji Holdings Co., Ltd, 1-29-1 Nanakuni, Hachioji, Tokyo, 192-0919, Japan.
| | - Seiichiro Higashi
- Wellness Science Labs, Meiji Holdings Co., Ltd, 1-29-1 Nanakuni, Hachioji, Tokyo, 192-0919, Japan
| | - Shukuko Ebihara
- Chiyoda Paramedical Care Clinic, 3-3-10 Nihonbashi Hongokucho, Chuo-Ku, Tokyo, 103-0021, Japan
| | - Masashi Nagata
- Wellness Science Labs, Meiji Holdings Co., Ltd, 1-29-1 Nanakuni, Hachioji, Tokyo, 192-0919, Japan
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Jiang Z, Luo X, Han C, Qin YY, Pan SY, Qin ZH, Bao J, Luo L. NAD + homeostasis and its role in exercise adaptation: A comprehensive review. Free Radic Biol Med 2024:S0891-5849(24)00683-X. [PMID: 39326681 DOI: 10.1016/j.freeradbiomed.2024.09.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 09/16/2024] [Accepted: 09/23/2024] [Indexed: 09/28/2024]
Abstract
Nicotinamide adenine dinucleotide (NAD+) is a crucial coenzyme involved in catalyzing cellular redox reactions and serving as a substrate for NAD+-dependent enzymes. It plays a vital role in maintaining tissue homeostasis and promoting healthy aging. Exercise, a well-established and cost-effective method for enhancing health, can influence various pathways related to NAD+ metabolism. Strategies such as supplementing NAD+ precursors, modulating NAD+ synthesis enzymes, or inhibiting enzymes that consume NAD+ can help restore NAD+ balance and improve exercise performance. Various overlapping signaling pathways are known to play a crucial role in the beneficial effects of both NAD+ and exercise on enhancing health and slowing aging process. Studies indicate that a combined strategy of exercise and NAD+ supplementation could synergistically enhance athletic capacity. This review provides an overview of current research on the interactions between exercise and the NAD+ network, underscoring the significance of NAD+ homeostasis in exercise performance. It also offers insights into enhancing exercise capacity and improving aging-related diseases through the optimal use of exercise interventions and NAD+ supplementation methods.
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Affiliation(s)
- Zhi Jiang
- School of Physical Education and Sports Science, Soochow University, Suzhou, 215021, China
| | - Xun Luo
- Kerry Rehabilitation Medicine Research Institute, Shenzhen 518048, China
| | - Chong Han
- School of Physical Education and Sports Science, Soochow University, Suzhou, 215021, China
| | - Yuan-Yuan Qin
- Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, 215009, China
| | - Shan-Yao Pan
- School of Physical Education and Sports Science, Soochow University, Suzhou, 215021, China
| | - Zheng-Hong Qin
- Institute of Health Technology, Suzhou Gaobo Vocational College, Suzhou High-Technology District Sciense Town, 5 Qingshan Road, Suzhou 215163, China
| | - Jie Bao
- School of Physical Education and Sports Science, Soochow University, Suzhou, 215021, China.
| | - Li Luo
- School of Physical Education and Sports Science, Soochow University, Suzhou, 215021, China.
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Takeno K, Watanabe N, Morifuji M, Hotta H, Nishimune H. Identification of adrenergic presynaptic and postsynaptic protein locations at neuromuscular junctions, their decrease during aging, and recovery by nicotinamide mononucleotide administration. Neuroreport 2024; 35:805-812. [PMID: 38935067 DOI: 10.1097/wnr.0000000000002070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Neuromuscular junctions are innervated by motor and sympathetic nerves. The sympathetic modulation of motor innervation shows functional decline during aging, but the cellular and molecular mechanism of this change is not fully known. This study aimed to evaluate the effect of aging on sympathetic nerves and synaptic proteins at mouse neuromuscular junctions. Sympathetic nerves, presynaptic, and postsynaptic proteins of sympathetic nerves at neuromuscular junctions were visualized using immunohistochemistry, and aging-related changes were compared between adult-, aged-, and nicotinamide mononucleotide (NMN) administered aged mice. Sympathetic nerves were detected by anti-tyrosine hydroxylase antibody, and presynaptic protein vesicular monoamine transporter 2 colocalized with the sympathetic nerves. These two signals surrounded motor nerve terminals and acetylcholine receptor clusters. Postsynaptic neurotransmitter receptor β2-adrenergic receptors colocalized with motor nerve terminals and resided in reduced density at extrasynaptic sarcolemma. The signal intensity of the sympathetic nerve marker did not show a significant difference at neuromuscular junctions between 8.5-month-old adult mice and 25-month-old aged mice. However, the signal intensity of vesicular monoamine transporter 2 and β2-adrenergic receptors showed age-related decline at neuromuscular junctions. Interestingly, both age-related declines reverted to the adult level after 1 month of oral administration of NMN by drinking water. In contrast, NMN administration did not alter the expression level of sympathetic marker tyrosine hydroxylase at neuromuscular junctions. The results suggest a functional decline of sympathetic nerves at aged neuromuscular junctions due to decreases in presynaptic and postsynaptic proteins, which can be reverted to the adult level by NMN administration.
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Affiliation(s)
| | - Nobuhiro Watanabe
- Department of Autonomic Neuroscience, Tokyo Metropolitan Institute for Geriatrics and Gerontology
| | | | - Harumi Hotta
- Department of Autonomic Neuroscience, Tokyo Metropolitan Institute for Geriatrics and Gerontology
| | - Hiroshi Nishimune
- Laboratory of Neurobiology of Aging
- Department of Applied Biological Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
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Luo D, Ottesen EW, Lee JH, Singh RN. Transcriptome- and proteome-wide effects of a circular RNA encompassing four early exons of the spinal muscular atrophy genes. Sci Rep 2024; 14:10442. [PMID: 38714739 PMCID: PMC11076517 DOI: 10.1038/s41598-024-60593-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 04/25/2024] [Indexed: 05/10/2024] Open
Abstract
Spinal muscular atrophy (SMA) genes, SMN1 and SMN2 (hereinafter referred to as SMN1/2), produce multiple circular RNAs (circRNAs), including C2A-2B-3-4 that encompasses early exons 2A, 2B, 3 and 4. C2A-2B-3-4 is a universally and abundantly expressed circRNA of SMN1/2. Here we report the transcriptome- and proteome-wide effects of overexpression of C2A-2B-3-4 in inducible HEK293 cells. Our RNA-Seq analysis revealed altered expression of ~ 15% genes (4172 genes) by C2A-2B-3-4. About half of the affected genes by C2A-2B-3-4 remained unaffected by L2A-2B-3-4, a linear transcript encompassing exons 2A, 2B, 3 and 4 of SMN1/2. These findings underscore the unique role of the structural context of C2A-2B-3-4 in gene regulation. A surprisingly high number of upregulated genes by C2A-2B-3-4 were located on chromosomes 4 and 7, whereas many of the downregulated genes were located on chromosomes 10 and X. Supporting a cross-regulation of SMN1/2 transcripts, C2A-2B-3-4 and L2A-2B-3-4 upregulated and downregulated SMN1/2 mRNAs, respectively. Proteome analysis revealed 61 upregulated and 57 downregulated proteins by C2A-2B-3-4 with very limited overlap with those affected by L2A-2B-3-4. Independent validations confirmed the effect of C2A-2B-3-4 on expression of genes associated with chromatin remodeling, transcription, spliceosome function, ribosome biogenesis, lipid metabolism, cytoskeletal formation, cell proliferation and neuromuscular junction formation. Our findings reveal a broad role of C2A-2B-3-4, and expands our understanding of functions of SMN1/2 genes.
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Affiliation(s)
- Diou Luo
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, 50011, USA
| | - Eric W Ottesen
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, 50011, USA
| | - Ji Heon Lee
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, 50011, USA
| | - Ravindra N Singh
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, 50011, USA.
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Lundt S, Zhang N, Polo-Parada L, Wang X, Ding S. Dietary NMN supplementation enhances motor and NMJ function in ALS. Exp Neurol 2024; 374:114698. [PMID: 38266764 DOI: 10.1016/j.expneurol.2024.114698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/15/2024] [Accepted: 01/20/2024] [Indexed: 01/26/2024]
Abstract
Amyotrophic lateral sclerosis (ALS) is an adult-onset neurodegenerative disease that causes the degeneration of motor neurons in the motor cortex and spinal cord. Patients with ALS experience muscle weakness and atrophy in the limbs which eventually leads to paralysis and death. NAD+ is critical for energy metabolism, such as glycolysis and oxidative phosphorylation, but is also involved in non-metabolic cellular reactions. In the current study, we determined whether the supplementation of nicotinamide mononucleotide (NMN), an NAD+ precursor, in the diet had beneficial impacts on disease progression using a SOD1G93A mouse model of ALS. We found that the ALS mice fed with an NMN-supplemented diet (ALS+NMN mice) had modestly extended lifespan and exhibited delayed motor dysfunction. Using electrophysiology, we studied the effect of NMN on synaptic transmission at neuromuscular junctions (NMJs) in symptomatic of ALS mice (18 weeks old). ALS+NMN mice had larger end-plate potential (EPP) amplitudes and maintained better responses than ALS mice, and also had restored EPP facilitation. While quantal content was not affected by NMN, miniature EPP (mEPP) amplitude and frequency were elevated in ALS+NMN mice. NMN supplementation in diet also improved NMJ morphology, innervation, mitochondrial structure, and reduced reactive astrogliosis in the ventral horn of the lumbar spinal cord. Overall, our results indicate that dietary consumption of NMN can slow motor impairment, enhance NMJ function and improve healthspan of ALS mice.
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Affiliation(s)
- Samuel Lundt
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO 65211, United States of America; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, United States of America
| | - Nannan Zhang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, United States of America
| | - Luis Polo-Parada
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, United States of America; Department of Medical, Physiology and Pharmacology, University of Missouri, Columbia, MO 65211, United States of America
| | - Xinglong Wang
- Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, United States of America
| | - Shinghua Ding
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO 65211, United States of America; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, United States of America; Department of Chemical and Biomedical Engineering, University of Missouri, Columbia, MO 65211, United States of America.
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Luo D, Ottesen E, Lee JH, Singh R. Transcriptome- and proteome-wide effects of a circular RNA encompassing four early exons of the spinal muscular atrophy genes. RESEARCH SQUARE 2024:rs.3.rs-3818622. [PMID: 38464174 PMCID: PMC10925445 DOI: 10.21203/rs.3.rs-3818622/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Spinal muscular atrophy (SMA) genes, SMN1 and SMN2, produce multiple circular RNAs (circRNAs), including C2A-2B-3-4 that encompasses early exons 2A, 2B, 3 and 4. Here we report the transcriptome- and proteome-wide effects of overexpression of C2A-2B-3-4 in inducible HEK293 cells. Our RNA-Seq analysis revealed altered expression of ~ 15% genes (4,172 genes) by C2A-2B-3-4. About half of the affected genes by C2A-2B-3-4 remained unaffected by L2A-2B-3-4, a linear transcript encompassing exons 2A, 2B, 3 and 4 of SMN1/SMN2. These fifindings underscore the unique role of the structural context of C2A-2B-3-4 in gene regulation. A surprisingly high number of upregulated genes by C2A-2B-3-4 were located on chromosomes 4 and 7, whereas many of the downregulated genes were located on chromosomes 10 and X. Supporting a cross-regulation of SMN1/SMN2 transcripts, C2A-2B-3-4 and L2A-2B-3-4 upregulated and downregulated SMN1/SMN2 mRNAs, respectively. Proteome analysis revealed 61 upregulated and 57 downregulated proteins by C2A-2B-3-4 with very limited overlap with those affected by L2A-2B-3-4. Independent validations confirmed the effect of C2A-2B-3-4 on expression of genes associated with chromatin remodeling, transcription, spliceosome function, ribosome biogenesis, lipid metabolism, cytoskeletal formation, cell proliferation and neuromuscular junction formation. Our findings reveal a broad role of C2A-2B-3-4, a universally expressed circRNA produced by SMN1/SMN2.
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Saito Y, Sato K, Jinno S, Nakamura Y, Nobukuni T, Ogishima S, Mizuno S, Koshiba S, Kuriyama S, Ohneda K, Morifuji M. Effect of Nicotinamide Mononucleotide Concentration in Human Milk on Neurodevelopmental Outcome: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study. Nutrients 2023; 16:145. [PMID: 38201974 PMCID: PMC10780616 DOI: 10.3390/nu16010145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/25/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024] Open
Abstract
(1) Background: Breast milk is the only source of nutrition for breastfed infants, but few studies have examined the relationship between breast milk micronutrients and infant neurodevelopmental outcome in exclusively breastfed infants. The aim of this study was to characterize the association between nicotinamide adenine dinucleotide (NAD)-related compounds in the breast milk of Japanese subjects and infant neurodevelopmental outcome. (2) Methods: A total of 150 mother-child pairs were randomly selected from the three-generation cohort of the Tohoku Medical Megabank in Japan. Infants were exclusively breastfed for up to 6 months. Breast milk was collected at 1 month postpartum, and the quantity of NAD-related substances in the breast milk was quantified. The mothers also completed developmental questionnaires at 6, 12, and 24 months. The relationship between the concentration of NAD-related substances in breast milk and developmental indicators was evaluated via ordinal logistic regression analysis. (3) Results: Nicotinamide mononucleotide (NMN) was quantified as the major NAD precursor in breast milk. The median amount of NMN in the breast milk was 9.2 μM. The NMN concentration in breast milk was the only NAD-related substance in breast milk that showed a significant positive correlation with neurodevelopmental outcome in infants at 24 months. (4) Conclusions: The results suggest that NMN in human milk may be an important nutrient for early childhood development.
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Affiliation(s)
- Yoshie Saito
- Wellness Science Labs, Meiji Holdings Co., Ltd., Hachioji 192-0919, Japan;
| | - Keigo Sato
- Food Microbiology and Function Research Laboratory, Meiji Co., Ltd., Hachioji 192-0919, Japan; (K.S.); (S.J.); (Y.N.)
| | - Shinji Jinno
- Food Microbiology and Function Research Laboratory, Meiji Co., Ltd., Hachioji 192-0919, Japan; (K.S.); (S.J.); (Y.N.)
| | - Yoshitaka Nakamura
- Food Microbiology and Function Research Laboratory, Meiji Co., Ltd., Hachioji 192-0919, Japan; (K.S.); (S.J.); (Y.N.)
| | - Takahiro Nobukuni
- Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan; (T.N.); (S.O.); (S.M.); (S.K.); (S.K.); (K.O.)
| | - Soichi Ogishima
- Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan; (T.N.); (S.O.); (S.M.); (S.K.); (S.K.); (K.O.)
- Graduate School of Medicine, Tohoku University, Sendai 980-8573, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai 980-8573, Japan
| | - Satoshi Mizuno
- Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan; (T.N.); (S.O.); (S.M.); (S.K.); (S.K.); (K.O.)
| | - Seizo Koshiba
- Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan; (T.N.); (S.O.); (S.M.); (S.K.); (S.K.); (K.O.)
- Graduate School of Medicine, Tohoku University, Sendai 980-8573, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai 980-8573, Japan
| | - Shinichi Kuriyama
- Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan; (T.N.); (S.O.); (S.M.); (S.K.); (S.K.); (K.O.)
- Graduate School of Medicine, Tohoku University, Sendai 980-8573, Japan
- International Research Institute of Disaster Science, Tohoku University, Sendai 980-0845, Japan
| | - Kinuko Ohneda
- Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan; (T.N.); (S.O.); (S.M.); (S.K.); (S.K.); (K.O.)
- Graduate School of Medicine, Tohoku University, Sendai 980-8573, Japan
| | - Masashi Morifuji
- Wellness Science Labs, Meiji Holdings Co., Ltd., Hachioji 192-0919, Japan;
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Martínez-Sánchez JE, Cárdenas Y, Trujillo X, Ríos-Silva M, Díaz-Reval MI, Bricio-Barrios JA, Muñiz J, Alcaraz-Siqueiros J, Huerta M. Increased Frequency of Giant Miniature End-Plate Potentials at the Neuromuscular Junction in Diabetic Rats. Biomedicines 2023; 12:68. [PMID: 38255175 PMCID: PMC10813272 DOI: 10.3390/biomedicines12010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/20/2023] [Accepted: 12/23/2023] [Indexed: 01/24/2024] Open
Abstract
There is a need for research addressing the functional characteristics of the motor end-plate in diabetes to identify mechanisms contributing to neuromuscular dysfunction. Here, we investigated the effect of diabetes on spontaneous acetylcholine release in the rat neuromuscular junction. We studied two randomized groups of male Wistar rats (n = 7 per group, 350 ± 50 g, 12-16 weeks of age): one with streptozotocin-induced experimental diabetes, and a healthy control group without diabetes. After 8 weeks of monitoring after diabetes induction, rats in both groups were anesthetized with pentobarbital. Then, the diaphragm muscle was dissected for electrophysiological recordings of miniature end-plate potentials (MEPPs) using a single electrode located at the region of the muscle end-plate. All experiments were conducted at environmental temperature (20-22 °C) in rat Ringer solution with constant bubbling carbogen (95% O2, 5% CO2). Compared to healthy controls, in the diaphragm neuromuscular end-plate derived from diabetic rats, the MEPPs were higher in amplitude and frequency, and the proportion of giant MEPPs was elevated (7.09% vs. 1.4% in controls). Our results showed that diabetes affected the acetylcholine MEPP pattern and increased the number of giant potentials compared to healthy controls.
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Affiliation(s)
- Julián Elías Martínez-Sánchez
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Yolitzy Cárdenas
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Xóchitl Trujillo
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Mónica Ríos-Silva
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima—CONAHCyT, Av. 25 de Julio 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico
| | - M. Irene Díaz-Reval
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Jaime Alberto Bricio-Barrios
- Facultad de Medicina, Universidad de Colima, Av. Universidad #333, Col. Las Víboras, Colima 28040, Colima, Mexico;
| | - Jesús Muñiz
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Julio Alcaraz-Siqueiros
- Facultad de Ciencias Biológicas y Agropecuarias, Universidad de Colima, Km 40 Autopista Colima-Manzanillo, Crucero de Tecomán, Tecomán 28930, Colima, Mexico
| | - Miguel Huerta
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
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HENG X, WANG Z, YANG L, LI L, HUANG S. Dangua Fang regulating tricarboxylic acid cycle and respiratory chain and its mechanism in diabetic rats. J TRADIT CHIN MED 2023; 43:1150-1159. [PMID: 37946477 PMCID: PMC10623262 DOI: 10.19852/j.cnki.jtcm.20230904.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/21/2022] [Indexed: 11/12/2023]
Abstract
OBJECTIVE To investigate the influence and possible targets of Dangua Fang on tricarboxylic acid (TCA) cycle and respiratory chain to enrich the prescription's mechanism of effective intervention on glycolipid metabolic diseases such as type 2 diabetes. METHODS After interventional rats were fed with high glucose and high fat diet ad libitum for 4 weeks, intraperitoneally injected streptozotocin to induce diabetic model. According to blood glucose level,28 diabetic rats were selected and continued to be fed with high glucose and high fat diet, were stratified by body weight, and divided randomly by blood glucose into Model group (was given sterile water by gastric perfusion and injected aquae pro injection intraperitoneally), Dangua group [Dangua liquor 20.5 g·kg-1·d-1 by perfusion and aquae pro injection intraperitoneally], Inhibitor group [sterile water by perfusion and nicotinamide phosphoribosyl transferase (Nampt) specific blocker GEN-617 1.25 mg/kg intraperitoneally], DanInhit group (Dangua liquor and GEN-617 synchronously). Control group were continuously fed with ordinary diet. The intervention was last for 10 weeks. Body weight (BW), liver index (LI), glycosylated hemoglobin (HbA1c), TC, TG, free fatty acids (FFA), creatinine (Cr), and A-ketoglutarate (α-KG), Iso-citric acid (ICA), oxaloacetic acid (OAA) were tested. The cytochrome C oxidase (COX) and Succinate dehydrogenase (SDH) were evaluated by Colorimetry; Nampt protein, Adenosine triphosphate (ATP) synthase (ATPs), Nicotinamide adenine dinucleotide (NAD+)and its reduced (NADH) in liver were measured by enzyme linked immunosorbent assay. The expressions of Nampt and mitochondrialnadhdehydrogenase-1 (mt-ND1) gene in liver was assessed by real-time polymerase chain reaction. Hepatic tissue staining was also completed. RESULTS The levels of BW, ICA, α-KG and Nampt-mRNA in the Model group are lower than that in the Normal group (P < 0.05), conversely, liver weight, LI, TC, HbA1c, SDH and ATPs, mt-ND1-mRNA, and Nampt protein in the Model group are higher (P < 0.01, P < 0.05). Compared with Model group, the levels of ICA, Nampt-mRNA and Nampt in Dangua group are significantly increased, and FFA obviously raised (P < 0.01 and P < 0.05); liver weight, BW, SDH are obviously lower, and HbA1c decreased significantly (P < 0.01, P < 0.05). TG, FFA and Nampt protein increased in the DanInhit group, TC, TG, BW obviously increased in the Inhibitor group, but SDH is decreased in both the two groups (P < 0.05, P < 0.01). Compared with Dangua group, DanInhib group has the lower levels of ICA, mt-ND1-mRNA, Nampt-mRNA, and the higher level of BW, LI and HbA1c. In the Inhibitor group, ICA and Nampt protein decreased, BW and LI, HbA1c and TG increased (P < 0.01 or P < 0.05). Tissue staining display that, in the model group there is obvious pathologic changes ie: fibrosis, steatosis and inflammatory cell infiltration. Lesions in the Dangua group are mild, and those of Inhibitor group are more obvious than the Model group, and DanInhit group is intermediately affected compared to Dangua group and Inhibitor group. CONCLUSION Dangua Fang increases the metabolic flux of TCA cycle and optimizes respiratory chain function by up-regulating Nampt expression.
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Affiliation(s)
- Xianpei HENG
- 1 Department of Endocrinology, People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350004, China
| | - Zhita WANG
- 1 Department of Endocrinology, People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350004, China
| | - Liuqing YANG
- 1 Department of Endocrinology, People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350004, China
| | - Liang LI
- 1 Department of Endocrinology, People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350004, China
| | - Suping HUANG
- 2 Academy of Integrative Medicine Fujian, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
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10
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Yang S, Park JH, Lu HC. Axonal energy metabolism, and the effects in aging and neurodegenerative diseases. Mol Neurodegener 2023; 18:49. [PMID: 37475056 PMCID: PMC10357692 DOI: 10.1186/s13024-023-00634-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 06/08/2023] [Indexed: 07/22/2023] Open
Abstract
Human studies consistently identify bioenergetic maladaptations in brains upon aging and neurodegenerative disorders of aging (NDAs), such as Alzheimer's disease, Parkinson's disease, Huntington's disease, and Amyotrophic lateral sclerosis. Glucose is the major brain fuel and glucose hypometabolism has been observed in brain regions vulnerable to aging and NDAs. Many neurodegenerative susceptible regions are in the topological central hub of the brain connectome, linked by densely interconnected long-range axons. Axons, key components of the connectome, have high metabolic needs to support neurotransmission and other essential activities. Long-range axons are particularly vulnerable to injury, neurotoxin exposure, protein stress, lysosomal dysfunction, etc. Axonopathy is often an early sign of neurodegeneration. Recent studies ascribe axonal maintenance failures to local bioenergetic dysregulation. With this review, we aim to stimulate research in exploring metabolically oriented neuroprotection strategies to enhance or normalize bioenergetics in NDA models. Here we start by summarizing evidence from human patients and animal models to reveal the correlation between glucose hypometabolism and connectomic disintegration upon aging/NDAs. To encourage mechanistic investigations on how axonal bioenergetic dysregulation occurs during aging/NDAs, we first review the current literature on axonal bioenergetics in distinct axonal subdomains: axon initial segments, myelinated axonal segments, and axonal arbors harboring pre-synaptic boutons. In each subdomain, we focus on the organization, activity-dependent regulation of the bioenergetic system, and external glial support. Second, we review the mechanisms regulating axonal nicotinamide adenine dinucleotide (NAD+) homeostasis, an essential molecule for energy metabolism processes, including NAD+ biosynthetic, recycling, and consuming pathways. Third, we highlight the innate metabolic vulnerability of the brain connectome and discuss its perturbation during aging and NDAs. As axonal bioenergetic deficits are developing into NDAs, especially in asymptomatic phase, they are likely exaggerated further by impaired NAD+ homeostasis, the high energetic cost of neural network hyperactivity, and glial pathology. Future research in interrogating the causal relationship between metabolic vulnerability, axonopathy, amyloid/tau pathology, and cognitive decline will provide fundamental knowledge for developing therapeutic interventions.
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Affiliation(s)
- Sen Yang
- The Linda and Jack Gill Center for Biomolecular Sciences, Indiana University, Bloomington, IN, 47405, USA
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, 47405, USA
- Program in Neuroscience, Indiana University, Bloomington, IN, 47405, USA
| | - Jung Hyun Park
- The Linda and Jack Gill Center for Biomolecular Sciences, Indiana University, Bloomington, IN, 47405, USA
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, 47405, USA
- Program in Neuroscience, Indiana University, Bloomington, IN, 47405, USA
| | - Hui-Chen Lu
- The Linda and Jack Gill Center for Biomolecular Sciences, Indiana University, Bloomington, IN, 47405, USA.
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, 47405, USA.
- Program in Neuroscience, Indiana University, Bloomington, IN, 47405, USA.
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11
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Gao X, Li J, Xu S, Li X, Wang X, Li Y, Huang Y, Liu S, Zeng Q. Oral nicotinamide mononucleotide (NMN) to treat chronic insomnia: protocol for the multicenter, randomized, double-blinded, placebo-controlled trial. Trials 2023; 24:340. [PMID: 37202819 DOI: 10.1186/s13063-023-07351-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 04/20/2023] [Indexed: 05/20/2023] Open
Abstract
BACKGROUND The treatment of insomnia, which is the most common sleep disorder, includes drug and behavioral treatment, but each treatment measure has its limitations. So new treatment method needs to be taken to improve the treatment effect. MN supplementation is a potential promising new method for the treatment of insomnia, resulting in a rising need for methodological research towards verifying its efficacy. METHODS/DESIGN We describe a proposal for a multicenter, patient-assessor-blinded, randomized controlled trial with two parallel arms. A total of 400 chronic insomnia patients will be allocated 1:1 to the intervention group (treatment with oral NMN 320 mg/day) or control group (treatment with oral placebo). All subjects are clinical chronic insomnia patients who meet all inclusion criteria. All subjects are treated by taking NMN or placebo. The primary outcome is the score on the Pittsburgh Sleep Quality Index (PSQI). Secondary outcomes are the score on the Insomnia Severity Index (ISI) and Epworth Sleeping Scale (ESS), the total sleep time (TST), sleep efficiency (SE), sleep latency, and REM sleep latency to assess sleep quality changes. Subjects are assessed at two time points: baseline and follow-up. The duration of the clinical trial is 60 days. DISCUSSION This study will provide more evidence on the effects of NMN on improving sleep quality among patients with chronic insomnia. If proven effective, NMN supplement can be used as a new treatment for chronic insomnia in the future. TRIAL REGISTRATION Chinese Clinical Trial Registry (chictr.org.cn) ChiCTR2200058001. Registered on 26 March 2022.
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Affiliation(s)
- Xiangyang Gao
- Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Junhua Li
- Health Management Center, Handan Central Hospital, Hebei Province, Handan, China
| | - Sanping Xu
- Health Management Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hebei Province, Wuhan, China
| | - Xueying Li
- Department of Biostatistics, Peking University First Hospital, Beijing, 100034, China
| | - Xicheng Wang
- Beijing Dublin International Collage, Beijing University of Technology, Beijing, 100124, China
| | - Yongli Li
- Health Management Center, Henan Provincial People's Hospital, Zhengzhou, China
| | - Yan Huang
- Health Management Center, West China Hospital, Sichuan University, Sichuan Province, Chengdu, China
| | - Shaohui Liu
- Health Management Center, Xiangya Hospital, Central South Hospital, Hunan Province, Changsha, China
| | - Qiang Zeng
- Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.
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12
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NFKB1 Gene Mutant Was Associated with Prognosis of Coronary Artery Disease and Exacerbated Endothelial Mitochondrial Fission and Dysfunction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9494926. [PMID: 36317060 PMCID: PMC9617727 DOI: 10.1155/2022/9494926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 08/11/2022] [Accepted: 09/21/2022] [Indexed: 11/18/2022]
Abstract
Endothelial apoptosis is the core pathological change in atherosclerotic cardiovascular disease, including coronary artery disease (CAD). Determining the molecular mechanisms underlying endothelial apoptosis is important. Nuclear factor kappa B (NF-κB) is a crucial transcription factor for controlling apoptosis. Our previous study demonstrated that the -94 ATTG ins/del mutant in the promoter of NFKB1 gene (rs28362491) is a risk factor for CAD. In the present study, we found that NFKB1 rs28362491 polymorphism was positively associated with increased major adverse cardiac and cerebrovascular events (MACCEs) in CAD patients. After adjusting for confounding factors including age, smoking, hypertension, glucose, and low-density lipoprotein cholesterol, the mutant DD genotype was an independent predictor of MACCEs (OR = 2.578, 95%CI = 1.64–4.05, P = 0.003). The in vitro study showed that mutant human umbilical vein endothelial cells (DD-mutant HUVECs) were more susceptible to high-glucose/palmitate-induced apoptosis, which was accompanied by decreased p50 expression and increased expression of cleaved caspase-3, Cytochrome c, and phospho-p65 (P < 0.05). The mitochondrial membrane potential was significantly lower, while increasing levels of mtROS and more opening of the mPTP were observed in DD-mutant HUVECs (P < 0.05). Furthermore, the percentage of cells with fragmented or spherical mitochondria was significantly higher in DD-mutant HUVECs than in wild-type cells (genotype II HUVECs) (P < 0.05). In addition, after stimulation with high glucose/palmitate, the NFKB1 gene mutant significantly increased the expression of Drp1, which indicated that the NFKB1 gene mutant affected the expression of mitochondrial morphology-related proteins, leading to excessive mitochondrial fission. In conclusion, the mutant DD genotype of the NFKB1 gene was an independent predictor of worse long-term prognosis for CAD patients. DD-mutant HUVECs exhibited abnormal activation of the NF-κB pathway and increased Drp1 expression, which caused excessive mitochondrial fission and dysfunction, ultimately leading to increased apoptosis.
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13
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Lundt S, Ding S. NAD + Metabolism and Diseases with Motor Dysfunction. Genes (Basel) 2021; 12:1776. [PMID: 34828382 PMCID: PMC8625820 DOI: 10.3390/genes12111776] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 12/12/2022] Open
Abstract
Neurodegenerative diseases result in the progressive deterioration of the nervous system, with motor and cognitive impairments being the two most observable problems. Motor dysfunction could be caused by motor neuron diseases (MNDs) characterized by the loss of motor neurons, such as amyotrophic lateral sclerosis and Charcot-Marie-Tooth disease, or other neurodegenerative diseases with the destruction of brain areas that affect movement, such as Parkinson's disease and Huntington's disease. Nicotinamide adenine dinucleotide (NAD+) is one of the most abundant metabolites in the human body and is involved with numerous cellular processes, including energy metabolism, circadian clock, and DNA repair. NAD+ can be reversibly oxidized-reduced or directly consumed by NAD+-dependent proteins. NAD+ is synthesized in cells via three different paths: the de novo, Preiss-Handler, or NAD+ salvage pathways, with the salvage pathway being the primary producer of NAD+ in mammalian cells. NAD+ metabolism is being investigated for a role in the development of neurodegenerative diseases. In this review, we discuss cellular NAD+ homeostasis, looking at NAD+ biosynthesis and consumption, with a focus on the NAD+ salvage pathway. Then, we examine the research, including human clinical trials, focused on the involvement of NAD+ in MNDs and other neurodegenerative diseases with motor dysfunction.
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Affiliation(s)
- Samuel Lundt
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, Columbia, MO 65211, USA;
- Interdisciplinary Neuroscience Program, University of Missouri-Columbia, Columbia, MO 65211, USA
| | - Shinghua Ding
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, Columbia, MO 65211, USA;
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri-Columbia, Columbia, MO 65211, USA
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14
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Lundt S, Zhang N, Li JL, Zhang Z, Zhang L, Wang X, Bao R, Cai F, Sun W, Ge WP, Ding S. Metabolomic and transcriptional profiling reveals bioenergetic stress and activation of cell death and inflammatory pathways in vivo after neuronal deletion of NAMPT. J Cereb Blood Flow Metab 2021; 41:2116-2131. [PMID: 33563078 PMCID: PMC8327099 DOI: 10.1177/0271678x21992625] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/19/2022]
Abstract
Nicotinamide phosphoribosyltransferase (NAMPT) is the rate-limiting enzyme in the NAD+ salvage pathway. Our previous study demonstrated that deletion of NAMPT gene in projection neurons using Thy1-NAMPT-/- conditional knockout (cKO) mice causes neuronal degeneration, muscle atrophy, neuromuscular junction abnormalities, paralysis and eventually death. Here we conducted a combined metabolomic and transcriptional profiling study in vivo in an attempt to further investigate the mechanism of neuronal degeneration at metabolite and mRNA levels after NAMPT deletion. Here using steady-state metabolomics, we demonstrate that deletion of NAMPT causes a significant decrease of NAD+ metabolome and bioenergetics, a buildup of metabolic intermediates upstream of glyceraldehyde 3-phosphate dehydrogenase (GAPDH) in glycolysis, and an increase of oxidative stress. RNA-seq shows that NAMPT deletion leads to the increase of mRNA levels of enzymes in NAD metabolism, in particular PARP family of NAD+ consumption enzymes, as well as glycolytic genes Glut1, Hk2 and PFBFK3 before GAPDH. GO, KEGG and GSEA analyses show the activations of apoptosis, inflammation and immune responsive pathways and the inhibition of neuronal/synaptic function in the cKO mice. The current study suggests that increased oxidative stress, apoptosis and neuroinflammation contribute to neurodegeneration and mouse death as a direct consequence of bioenergetic stress after NAMPT deletion.
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Affiliation(s)
- Samuel Lundt
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO, USA
- Interdisciplinary Neuroscience Program, University of Missouri-Columbia, MO, USA
| | - Nannan Zhang
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO, USA
| | - Jun-Liszt Li
- Academy for Advanced Interdisciplinary Studies (AAIS), Peking University, Beijing, China
- Chinese Institute for Brain Research, Beijing, China
| | - Zhe Zhang
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO, USA
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri-Columbia, MO, USA
| | - Li Zhang
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO, USA
- Interdisciplinary Neuroscience Program, University of Missouri-Columbia, MO, USA
| | - Xiaowan Wang
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO, USA
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri-Columbia, MO, USA
| | - Ruisi Bao
- Interdisciplinary Neuroscience Program, University of Missouri-Columbia, MO, USA
| | - Feng Cai
- Children’s Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Wenzhi Sun
- Chinese Institute for Brain Research, Beijing, China
- School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Woo-Ping Ge
- Chinese Institute for Brain Research, Beijing, China
| | - Shinghua Ding
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO, USA
- Interdisciplinary Neuroscience Program, University of Missouri-Columbia, MO, USA
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri-Columbia, MO, USA
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15
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Lundt S, Ding S. Non-cell autonomous effect of neuronal nicotinamide phosphoribosyl transferase on the function of neuromuscular junctions. Neural Regen Res 2021; 16:302-303. [PMID: 32859785 PMCID: PMC7896222 DOI: 10.4103/1673-5374.290893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Samuel Lundt
- Dalton Cardiovascular Research Center, Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO, USA
| | - Shinghua Ding
- Dalton Cardiovascular Research Center, Interdisciplinary Neuroscience Program; Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, USA
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16
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Dao T, Green AE, Kim YA, Bae SJ, Ha KT, Gariani K, Lee MR, Menzies KJ, Ryu D. Sarcopenia and Muscle Aging: A Brief Overview. Endocrinol Metab (Seoul) 2020; 35:716-732. [PMID: 33397034 PMCID: PMC7803599 DOI: 10.3803/enm.2020.405] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 11/30/2020] [Indexed: 12/11/2022] Open
Abstract
The world is facing the new challenges of an aging population, and understanding the process of aging has therefore become one of the most important global concerns. Sarcopenia is a condition which is defined by the gradual loss of skeletal muscle mass and function with age. In research and clinical practice, sarcopenia is recognized as a component of geriatric disease and is a current target for drug development. In this review we define this condition and provide an overview of current therapeutic approaches. We further highlight recent findings that describe key pathophysiological phenotypes of this condition, including alterations in muscle fiber types, mitochondrial function, nicotinamide adenine dinucleotide (NAD+) metabolism, myokines, and gut microbiota, in aged muscle compared to young muscle or healthy aged muscle. The last part of this review examines new therapeutic avenues for promising treatment targets. There is still no accepted therapy for sarcopenia in humans. Here we provide a brief review of the current state of research derived from various mouse models or human samples that provide novel routes for the development of effective therapeutics to maintain muscle health during aging.
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Affiliation(s)
- Tam Dao
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon,
Korea
| | - Alexander E. Green
- University of Ottawa Eric Poulin Centre for Neuromuscular Disease, Ottawa, ON,
Canada
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences University of Ottawa, Ottawa, ON,
Canada
| | - Yun A Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon,
Korea
| | - Sung-Jin Bae
- Korean Medical Research Center for Healthy Aging, Pusan National University, Yangsan,
Korea
| | - Ki-Tae Ha
- Korean Medical Research Center for Healthy Aging, Pusan National University, Yangsan,
Korea
- Department of Korean Medical Science, Pusan National University School of Korean Medicine, Yangsan,
Korea
| | - Karim Gariani
- Service of Endocrinology, Diabetes, Nutrition and Therapeutic Patient Education, Geneva University Hospitals, Geneva,
Switzerland
- Faculty of Medicine, University of Geneva, Geneva,
Switzerland
| | - Mi-ra Lee
- Department of Social Welfare, Division of Public Service, Dong-Eui University, Busan,
Korea
- Mi-ra Lee, Department of Public Service, Dong-Eui University, 176 Eomgwang-ro, Busanjin-gu, Busan 47340, Korea, Tel: +82-51-890-2038, E-mail:
| | - Keir J. Menzies
- University of Ottawa Eric Poulin Centre for Neuromuscular Disease, Ottawa, ON,
Canada
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences University of Ottawa, Ottawa, ON,
Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON,
Canada
- Keir J. Menzies, Eric Poulin Centre for Neuromuscular Disease, Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada, Tel: +1-613-562-5800, E-mail:
| | - Dongryeol Ryu
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon,
Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon,
Korea
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul,
Korea
- Corresponding authors: Dongryeol Ryu, Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Korea, Tel: +82-31-299-6138, E-mail:
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Hong W, Mo F, Zhang Z, Huang M, Wei X. Nicotinamide Mononucleotide: A Promising Molecule for Therapy of Diverse Diseases by Targeting NAD+ Metabolism. Front Cell Dev Biol 2020; 8:246. [PMID: 32411700 PMCID: PMC7198709 DOI: 10.3389/fcell.2020.00246] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 03/24/2020] [Indexed: 02/05/2023] Open
Abstract
NAD+, a co-enzyme involved in a great deal of biochemical reactions, has been found to be a network node of diverse biological processes. In mammalian cells, NAD+ is synthetized, predominantly through NMN, to replenish the consumption by NADase participating in physiologic processes including DNA repair, metabolism, and cell death. Correspondingly, aberrant NAD+ metabolism is observed in many diseases. In this review, we discuss how the homeostasis of NAD+ is maintained in healthy condition and provide several age-related pathological examples related with NAD+ unbalance. The sirtuins family, whose functions are NAD-dependent, is also reviewed. Administration of NMN surprisingly demonstrated amelioration of the pathological conditions in some age-related disease mouse models. Further clinical trials have been launched to investigate the safety and benefits of NMN. The NAD+ production and consumption pathways including NMN are essential for more precise understanding and therapy of age-related pathological processes such as diabetes, ischemia–reperfusion injury, heart failure, Alzheimer’s disease, and retinal degeneration.
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Affiliation(s)
- Weiqi Hong
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Fei Mo
- West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Department of Biotherapy, Chengdu, China
| | - Ziqi Zhang
- West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Department of Biotherapy, Chengdu, China
| | - Mengyuan Huang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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