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Arroum T, Hish GA, Burghardt KJ, Ghamloush M, Bazzi B, Mrech A, Morse PT, Britton SL, Koch LG, McCully JD, Hüttemann M, Malek MH. Mitochondria Transplantation: Rescuing Innate Muscle Bioenergetic Impairment in a Model of Aging and Exercise Intolerance. J Strength Cond Res 2024; 38:1189-1199. [PMID: 38900170 PMCID: PMC11192236 DOI: 10.1519/jsc.0000000000004793] [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] [Indexed: 06/21/2024]
Abstract
ABSTRACT Arroum, T, Hish, GA, Burghardt, KJ, Ghamloush, M, Bazzi, B, Mrech, A, Morse, PT, Britton, SL, Koch, LG, McCully, JD, Hüttemann, M, and Malek, MH. Mitochondria transplantation: Rescuing innate muscle bioenergetic impairment in a model of aging and exercise intolerance. J Strength Cond Res 38(7): 1189-1199, 2024-Mitochondria, through oxidative phosphorylation, are crucial for energy production. Disease, genetic impairment, or deconditioning can harm muscle mitochondria, affecting energy production. Endurance training enhances mitochondrial function but assumes mobility. Individuals with limited mobility lack effective treatments for mitochondrial dysfunction because of disease or aging. Mitochondrial transplantation replaces native mitochondria that have been damaged with viable, respiration-competent mitochondria. Here, we used a rodent model selectively bred for low-capacity running (LCR), which exhibits innate mitochondrial dysfunction in the hind limb muscles. Hence, the purpose of this study was to use a distinct breed of rats (i.e., LCR) that display hereditary skeletal muscle mitochondrial dysfunction to evaluate the consequences of mitochondrial transplantation. We hypothesized that the transplantation of mitochondria would effectively alleviate mitochondrial dysfunction in the hind limb muscles of rats when compared with placebo injections. In addition, we hypothesized that rats receiving the mitochondrial transplantation would experience an improvement in their functional capacity, as evaluated through incremental treadmill testing. Twelve aged LCR male rats (18 months old) were randomized into 2 groups (placebo or mitochondrial transplantation). One LCR rat of the same age and sex was used as the donor to isolate mitochondria from the hindlimb muscles. Isolated mitochondria were injected into both hindlimb muscles (quadriceps femoris, tibialis anterior (TA), and gastrocnemius complex) of a subset LCR (n = 6; LCR-M) rats. The remaining LCR (n = 5; LCR-P) subset received a placebo injection containing only the vehicle without the isolated mitochondria. Four weeks after mitochondrial transplantation, rodents were euthanized and hindlimb muscles harvested. The results indicated a significant (p < 0.05) increase in mitochondrial markers for glycolytic (plantaris and TA) and mixed (quadricep femoris) muscles, but not oxidative muscle (soleus). Moreover, we found significant (p < 0.05) epigenetic changes (i.e., hypomethylation) at the global and site-specific levels for a key mitochondrial regulator (transcription factor A mitochondrial) between the placebo and mitochondrial transplantation groups. To our knowledge, this is the first study to examine the efficacy of mitochondrial transplantation in a rodent model of aging with congenital skeletal muscle dysfunction.
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Affiliation(s)
- Tasnim Arroum
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, 48201
| | - Gerald A. Hish
- Unit for Laboratory Animal Medicine (ULAM), University of Michigan, Ann Arbor, Ann Arbor, MI 48109
| | - Kyle J. Burghardt
- Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Detroit, MI 48201
| | - Mohamed Ghamloush
- Physical Therapy Program, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
- Integrative Physiology of Exercise Laboratory, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
| | - Belal Bazzi
- Physical Therapy Program, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
- Integrative Physiology of Exercise Laboratory, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
| | - Abdallah Mrech
- Physical Therapy Program, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
- Integrative Physiology of Exercise Laboratory, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
| | - Paul T. Morse
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, 48201
| | - Steven L. Britton
- Department of Anesthesiology, University of Michigan, Ann Arbor, Ann Arbor, MI 48109
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Ann Arbor, MI 48109
| | - Lauren G. Koch
- Department of Physiology and Pharmacology, The University of Toledo, College of Medicine and Life Sciences, Toledo, OH 43606
| | - James D. McCully
- Department of Cardiac Surgery, Boston Children’s Hospital Harvard Medical School, Boston, MA 02115
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, 48201
| | - Moh H. Malek
- Physical Therapy Program, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
- Integrative Physiology of Exercise Laboratory, Wayne State University, Eugene Applebaum College of Pharmacy and Health Sciences, Department of Health Care Sciences, Detroit, MI 48201
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Xu X, Talifu Z, Zhang CJ, Gao F, Ke H, Pan YZ, Gong H, Du HY, Yu Y, Jing YL, Du LJ, Li JJ, Yang DG. Mechanism of skeletal muscle atrophy after spinal cord injury: A narrative review. Front Nutr 2023; 10:1099143. [PMID: 36937344 PMCID: PMC10020380 DOI: 10.3389/fnut.2023.1099143] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
Spinal cord injury leads to loss of innervation of skeletal muscle, decreased motor function, and significantly reduced load on skeletal muscle, resulting in atrophy. Factors such as braking, hormone level fluctuation, inflammation, and oxidative stress damage accelerate skeletal muscle atrophy. The atrophy process can result in skeletal muscle cell apoptosis, protein degradation, fat deposition, and other pathophysiological changes. Skeletal muscle atrophy not only hinders the recovery of motor function but is also closely related to many systemic dysfunctions, affecting the prognosis of patients with spinal cord injury. Extensive research on the mechanism of skeletal muscle atrophy and intervention at the molecular level has shown that inflammation and oxidative stress injury are the main mechanisms of skeletal muscle atrophy after spinal cord injury and that multiple pathways are involved. These may become targets of future clinical intervention. However, most of the experimental studies are still at the basic research stage and still have some limitations in clinical application, and most of the clinical treatments are focused on rehabilitation training, so how to develop more efficient interventions in clinical treatment still needs to be further explored. Therefore, this review focuses mainly on the mechanisms of skeletal muscle atrophy after spinal cord injury and summarizes the cytokines and signaling pathways associated with skeletal muscle atrophy in recent studies, hoping to provide new therapeutic ideas for future clinical work.
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Affiliation(s)
- Xin Xu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Zuliyaer Talifu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
| | - Chun-Jia Zhang
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Feng Gao
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Han Ke
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
| | - Yun-Zhu Pan
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
| | - Han Gong
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Hua-Yong Du
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Yan Yu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Ying-Li Jing
- School of Rehabilitation, Capital Medical University, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Liang-Jie Du
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Jian-Jun Li
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
- *Correspondence: Jian-Jun Li
| | - De-Gang Yang
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- De-Gang Yang
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Shembel AC, Siu Y, Lhakhang T, Ash L, Jones D, Johnson AM. Metabolomic Expression of Laryngeal and Hindlimb Muscles in Adult versus Senescent Rats. Ann Otol Rhinol Laryngol 2022; 131:259-267. [PMID: 34041924 PMCID: PMC9137437 DOI: 10.1177/00034894211014692] [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] [Indexed: 11/15/2022]
Abstract
OBJECTIVES (1) Determine the feasibility of obtaining a global, unbiased metabolomic profile on laryngeal muscle in a rat model; (2) evaluate the impact of biological aging on the laryngeal metabolome; and (3) characterize biochemical expression differences between aged and non-aged laryngeal and hindlimb muscle. METHODS Thyroarytenoid laryngeal muscle and plantaris hindlimb muscle were harvested from 5 young adult (9 months old) and 5 older adult (32 months old) F344BN rats. Tissue was processed and analyzed using LC-MS methods. Detected metabolites were compared to widely used metabolite databases and KEGG pathway enrichment was performed on significant metabolites. RESULTS The greatest differences in metabolite expression were between laryngeal and limb muscle with 126 different metabolites found between laryngeal and limb within the young group and 149 different metabolites within the old group. Significant hits between muscle groups highlighted amino acid differences between these tissues. There were more robust differences with age in limb muscle compared to laryngeal muscle. CONCLUSIONS Amino acid metabolism is a key difference between muscles of the limbs and larynx. Due to the number of differentially expressed metabolites between the 2 muscle groups, caution should be exercised when applying skeletal limb muscle physiology and biology concepts to the vocal muscles in both aged and non-aged musculoskeletal systems. Mechanisms underlying less robust effects of age on laryngeal muscle compared to limb muscle require elucidation.
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Affiliation(s)
- Adrianna C. Shembel
- Department of Otolaryngology-Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY, USA
- Department of Speech, Language, and Hearing, University of Texas at Dallas, Dallas, TX, USA
- Department of Otolaryngology-Head and Neck, University of Texas at Southwestern Medical Center, Dallas, TX, USA
| | - Yik Siu
- Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York, NY, USA
| | - Tenzin Lhakhang
- Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York, NY, USA
| | - Leonard Ash
- Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York, NY, USA
| | - Drew Jones
- Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York, NY, USA
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Aaron M. Johnson
- Department of Otolaryngology-Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY, USA
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4
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Ma J, Sun D, Chen X. Hip–Knee Coupling Exoskeleton With Offset Theory for Walking Assistance. Front Bioeng Biotechnol 2022; 9:798496. [PMID: 35174146 PMCID: PMC8842000 DOI: 10.3389/fbioe.2021.798496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/30/2021] [Indexed: 01/26/2023] Open
Abstract
To alleviate the influence of aging on the elderly, a hip–knee coupling exoskeleton with offset theory is designed in this article to improve people’s athletic ability. With the novel design, the unique application strategy of the offset principle for hip and knee joints is developed, and a hip–knee coupling mechanism is proposed to solve the discrete power assistance problem for the knee joint. To acquire the success of the design, the mathematical model of the coupling mechanism is established to optimize the load environment of the exoskeleton system, and furthermore, an algorithm adapted to human movement is proposed to determine the monotonicity of the cam profiles. For the selection of the elastic parameters in the coupling mechanism, the sensitivity condition is proposed, and the human–machine interaction model of the KESM is further established. A man–machine coupling model was used to verify the scientificity of the exoskeleton design, and the comparison between the joint powers with or without exoskeleton indicated that the exoskeleton theoretically saved at least 20% of the human body’s energy.
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Affiliation(s)
- Jianfeng Ma
- Department of Materials and Manufacturing, Beijing University of Technology, Beijing, China
| | - Decheng Sun
- Department of Materials and Manufacturing, Beijing University of Technology, Beijing, China
| | - Xiao Chen
- The Quartermaster Engineering and Technology Research Institute, Institute of System Engineering, AMA., PLA, Beijing, China
- *Correspondence: Xiao Chen,
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5
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Arroyo E, Troutman AD, Moorthi RN, Avin KG, Coggan AR, Lim K. Klotho: An Emerging Factor With Ergogenic Potential. FRONTIERS IN REHABILITATION SCIENCES 2022; 2:807123. [PMID: 36188832 PMCID: PMC9397700 DOI: 10.3389/fresc.2021.807123] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/10/2021] [Indexed: 11/13/2022]
Abstract
Sarcopenia and impaired cardiorespiratory fitness are commonly observed in older individuals and patients with chronic kidney disease (CKD). Declines in skeletal muscle function and aerobic capacity can progress into impaired physical function and inability to perform activities of daily living. Physical function is highly associated with important clinical outcomes such as hospitalization, functional independence, quality of life, and mortality. While lifestyle modifications such as exercise and dietary interventions have been shown to prevent and reverse declines in physical function, the utility of these treatment strategies is limited by poor widespread adoption and adherence due to a wide variety of both perceived and actual barriers to exercise. Therefore, identifying novel treatment targets to manage physical function decline is critically important. Klotho, a remarkable protein with powerful anti-aging properties has recently been investigated for its role in musculoskeletal health and physical function. Klotho is involved in several key processes that regulate skeletal muscle function, such as muscle regeneration, mitochondrial biogenesis, endothelial function, oxidative stress, and inflammation. This is particularly important for older adults and patients with CKD, which are known states of Klotho deficiency. Emerging data support the existence of Klotho-related benefits to exercise and for potential Klotho-based therapeutic interventions for the treatment of sarcopenia and its progression to physical disability. However, significant gaps in our understanding of Klotho must first be overcome before we can consider its potential ergogenic benefits. These advances will be critical to establish the optimal approach to future Klotho-based interventional trials and to determine if Klotho can regulate physical dysfunction.
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Affiliation(s)
- Eliott Arroyo
- Division of Nephrology & Hypertension, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Ashley D. Troutman
- Department of Physical Therapy, School of Health and Human Sciences, Indiana University Purdue University, Indianapolis, IN, United States
| | - Ranjani N. Moorthi
- Division of Nephrology & Hypertension, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Keith G. Avin
- Division of Nephrology & Hypertension, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
- Department of Physical Therapy, School of Health and Human Sciences, Indiana University Purdue University, Indianapolis, IN, United States
| | - Andrew R. Coggan
- Department of Kinesiology, School of Health and Human Sciences, Indiana University Purdue University Indianapolis, Indianapolis, IN, United States
| | - Kenneth Lim
- Division of Nephrology & Hypertension, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
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Dalle S, Dupont J, Dedeyne L, Verschueren S, Tournoy J, Gielen E, Koppo K. Preliminary evidence of differential expression of myogenic and stress factors in skeletal muscle of older adults with low muscle strength. J Gerontol A Biol Sci Med Sci 2022; 77:1121-1129. [PMID: 34984449 DOI: 10.1093/gerona/glac002] [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: 08/30/2021] [Indexed: 11/12/2022] Open
Abstract
The age-related loss of muscle strength and mass, or sarcopenia, is a growing concern in the ageing population. Yet, it is not fully understood which molecular mechanisms underlie sarcopenia. Therefore, the present study compared the protein expression profile, such as catabolic, oxidative, stress-related and myogenic pathways, between older adults with preserved (8 ♀ and 5 ♂; 71.5 ±2.6 years) and low muscle strength (6 ♀ and 5 ♂; 78.0±5.0 years). Low muscle strength was defined as chair stand test time >15 seconds and/or handgrip strength <16kg (women) or <27kg (men) according the EWGSOP2 criteria. Catabolic signaling (i.e. FOXO1/3a, MuRF1, MAFbx, LC3b, Atg5, p62) was not differentially expressed between both groups, whereas the mitochondrial marker COX-IV, but not PGC1α and citrate synthase, was lower in the low muscle strength group. Stress factors CHOP and p-ERK1/2 were higher (~1.5-fold) in older adults with low muscle strength. Surprisingly, the inflammatory marker p-p65NF-κB was ~7-fold higher in older adults with preserved muscle strength. Finally, expression of myogenic factors (i.e. Pax7, MyoD, desmin; ~2-fold) was higher in adults with low muscle strength. To conclude, whereas the increased stress factors might reflect the age-related deterioration of tissue homeostasis, e.g. due to misfolded proteins (CHOP), upregulation of myogenic markers in the low strength group might be an attempt to compensate for the gradual loss in muscle quantity and quality. These data might provide valuable insights in the processes that underlie sarcopenia.
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Affiliation(s)
- Sebastiaan Dalle
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Belgium
| | - Jolan Dupont
- Geriatrics & Gerontology, Department of Public Health and Primary Care, KU Leuven, Belgium.,Department of Geriatric Medicine, UZ Leuven, Belgium
| | - Lenore Dedeyne
- Geriatrics & Gerontology, Department of Public Health and Primary Care, KU Leuven, Belgium
| | - Sabine Verschueren
- Research Group for Musculoskeletal Rehabilitation, Department of Movement Sciences, KU Leuven, Belgium
| | - Jos Tournoy
- Geriatrics & Gerontology, Department of Public Health and Primary Care, KU Leuven, Belgium.,Department of Geriatric Medicine, UZ Leuven, Belgium
| | - Evelien Gielen
- Geriatrics & Gerontology, Department of Public Health and Primary Care, KU Leuven, Belgium.,Department of Geriatric Medicine, UZ Leuven, Belgium
| | - Katrien Koppo
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Belgium
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Huang H, Xue J, Zheng J, Tian H, Fang Y, Wang W, Wang G, Hou D, Lin J. Bioinformatic analysis of the gene expression profile in muscle atrophy after spinal cord injury. Sci Rep 2021; 11:21903. [PMID: 34754020 PMCID: PMC8578571 DOI: 10.1038/s41598-021-01302-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 10/26/2021] [Indexed: 01/13/2023] Open
Abstract
Spinal cord injury (SCI) is often accompanied by muscle atrophy; however, its underlying mechanisms remain unclear. Here, the molecular mechanisms of muscle atrophy following SCI were investigated. The GSE45550 gene expression profile of control (before SCI) and experimental (14 days following SCI) groups, consisting of Sprague–Dawley rat soleus muscle (n = 6 per group), was downloaded from the Gene Expression Omnibus database, and then differentially expressed gene (DEG) identification and Gene Ontology, pathway, pathway network, and gene signal network analyses were performed. A total of 925 differentially expressed genes, 149 biological processes, and 55 pathways were screened. In the pathway network analysis, the 10 most important pathways were citrate cycle (TCA cycle), pyruvate metabolism, MAPK signalling pathway, fatty acid degradation, propanoate metabolism, apoptosis, focal adhesion, synthesis and degradation of ketone bodies, Wnt signalling, and cancer pathways. In the gene signal network analysis, the 10 most important genes were Acat1, Acadvl, Acaa2, Hadhb, Acss1, Oxct1, Hadha, Hadh, Acaca, and Cpt1b. Thus, we screened the key genes and pathways that may be involved in muscle atrophy after SCI and provided support for finding valuable markers for this disease.
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Affiliation(s)
- Hui Huang
- Department of Sports Medicine, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, 570311, Hainan, China
| | - Jinju Xue
- Department of Geriatrics, Affiliated Haikou Hospital, Central South University Xiangya School of Medicine, Haikou, 570208, Hainan, China
| | - Jiaxuan Zheng
- Department of Pathology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, 570311, Hainan, China
| | - Haiquan Tian
- Department of Orthopaedic Surgery, The Second People's Hospital of Changzhi, Changzhi, 046000, Shanxi, China
| | - Yehan Fang
- Department of Sports Medicine, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, 570311, Hainan, China
| | - Wei Wang
- Department of Emergency, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, 570311, Hainan, China
| | - Guangji Wang
- Department of Sports Medicine, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, 570311, Hainan, China
| | - Dan Hou
- Department of Neurology, Affiliated Haikou Hospital, Central South University Xiangya School of Medicine, Haikou, 570208, Hainan, China.
| | - Jianping Lin
- Department of Joint Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, 570311, Hainan, China.
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8
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Novak JS, Mázala DAG, Nearing M, Hindupur R, Uapinyoying P, Habib NF, Dickson T, Ioffe OB, Harris BT, Fidelia‐Lambert MN, Rossi CT, Hill DA, Wagner KR, Hoffman EP, Partridge TA. Human muscle stem cells are refractory to aging. Aging Cell 2021; 20:e13411. [PMID: 34089289 PMCID: PMC8282247 DOI: 10.1111/acel.13411] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 04/05/2021] [Accepted: 05/08/2021] [Indexed: 12/28/2022] Open
Abstract
Age-related loss of muscle mass and strength is widely attributed to limitation in the capacity of muscle resident satellite cells to perform their myogenic function. This idea contains two notions that have not been comprehensively evaluated by experiment. First, it entails the idea that we damage and lose substantial amounts of muscle in the course of our normal daily activities. Second, it suggests that mechanisms of muscle repair are in some way exhausted, thus limiting muscle regeneration. A third potential option is that the aged environment becomes inimical to the conduct of muscle regeneration. In the present study, we used our established model of human muscle xenografting to test whether muscle samples taken from cadavers, of a range of ages, maintained their myogenic potential after being transplanted into immunodeficient mice. We find no measurable difference in regeneration across the range of ages investigated up to 78 years of age. Moreover, we report that satellite cells maintained their myogenic capacity even when muscles were grafted 11 days postmortem in our model. We conclude that the loss of muscle mass with increasing age is not attributable to any intrinsic loss of myogenicity and is most likely a reflection of progressive and detrimental changes in the muscle microenvironment such as to disfavor the myogenic function of these cells.
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Affiliation(s)
- James S. Novak
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
- Department of Genomics and Precision MedicineThe George Washington University School of Medicine and Health SciencesWashingtonDCUSA
- Department of PediatricsThe George Washington University School of Medicine and Health SciencesWashingtonDCUSA
| | - Davi A. G. Mázala
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
- Department of Kinesiology, College of Health ProfessionsTowson UniversityTowsonMDUSA
| | - Marie Nearing
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
- Department of MedicineUniversity of Alabama at BirminghamBirminghamALUSA
| | - Ravi Hindupur
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
| | - Prech Uapinyoying
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
- Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and StrokeNational Institutes of HealthBethesdaMDUSA
| | - Nayab F. Habib
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
| | - Tessa Dickson
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
| | - Olga B. Ioffe
- Department of PathologyUniversity of Maryland School of MedicineBaltimoreMDUSA
| | - Brent T. Harris
- Department of Neurology and PathologyGeorgetown University Medical CenterWashingtonDCUSA
| | | | - Christopher T. Rossi
- Department of Pathology and Laboratory MedicineChildren's National HospitalWashingtonDCUSA
| | - D. Ashely Hill
- Department of Pathology and Laboratory MedicineChildren's National HospitalWashingtonDCUSA
| | - Kathryn R. Wagner
- The Hugo W. Moser Research InstituteKennedy Krieger InstituteBaltimoreMDUSA
- Departments of Neurology and NeuroscienceJohns Hopkins University School of MedicineBaltimoreMDUSA
| | - Eric P. Hoffman
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical SciencesBinghamton UniversityBinghamtonNYUSA
| | - Terence A. Partridge
- Center for Genetic Medicine Research, Children's Research InstituteChildren's National HospitalWashingtonDCUSA
- Department of Genomics and Precision MedicineThe George Washington University School of Medicine and Health SciencesWashingtonDCUSA
- Department of PediatricsThe George Washington University School of Medicine and Health SciencesWashingtonDCUSA
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Oberlohr V, Lengel H, Hambright WS, Whitney KE, Evans TA, Huard J. Biologics for Skeletal Muscle Healing: The Role of Senescence and Platelet-Based Treatment Modalities. OPER TECHN SPORT MED 2020. [DOI: 10.1016/j.otsm.2020.150754] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Preclinical Evaluation of a Food-Derived Functional Ingredient to Address Skeletal Muscle Atrophy. Nutrients 2020; 12:nu12082274. [PMID: 32751276 PMCID: PMC7469066 DOI: 10.3390/nu12082274] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle is the metabolic powerhouse of the body, however, dysregulation of the mechanisms involved in skeletal muscle mass maintenance can have devastating effects leading to many metabolic and physiological diseases. The lack of effective solutions makes finding a validated nutritional intervention an urgent unmet medical need. In vitro testing in murine skeletal muscle cells and human macrophages was carried out to determine the effect of a hydrolysate derived from vicia faba (PeptiStrong: NPN_1) against phosphorylated S6, atrophy gene expression, and tumour necrosis factor alpha (TNF-α) secretion, respectively. Finally, the efficacy of NPN_1 on attenuating muscle waste in vivo was assessed in an atrophy murine model. Treatment of NPN_1 significantly increased the phosphorylation of S6, downregulated muscle atrophy related genes, and reduced lipopolysaccharide-induced TNF-α release in vitro. In a disuse atrophy murine model, following 18 days of NPN_1 treatment, mice exhibited a significant attenuation of muscle loss in the soleus muscle and increased the integrated expression of Type I and Type IIa fibres. At the RNA level, a significant upregulation of protein synthesis-related genes was observed in the soleus muscle following NPN_1 treatment. In vitro and preclinical results suggest that NPN_1 is an effective bioactive ingredient with great potential to prolong muscle health.
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