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Nassar JE, McCrae B, Singh M, Farias MJ, Kim J, Passias PG, Diebo BG, Daniels AH. Masseter Sarcopenia and Mortality After Type II Odontoid Fractures in the Elderly: A 5-Year Follow-Up Study. Neurosurgery 2025:00006123-990000000-01638. [PMID: 40387320 DOI: 10.1227/neu.0000000000003529] [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: 12/10/2024] [Accepted: 02/03/2025] [Indexed: 05/20/2025] Open
Abstract
BACKGROUND AND OBJECTIVES Sarcopenia, defined as low muscle mass with reduced strength or function, is associated with poor outcomes in trauma patients. Head computed tomography scans routinely performed in elderly trauma patients allows for masseter sarcopenia measurement. Its association with mortality after Type II odontoid fractures has not been previously investigated. This study examines the relationship between masseter sarcopenia and mortality in elderly patients with Type II odontoid fractures. METHODS This retrospective cohort study included patients aged 50 years or older with a Type II odontoid fracture and a head computed tomography scan within 7 days from presentation. Data collected included demographics, Charlson Comorbidity Index, treatment modality, Injury Severity Scores, Modified Frailty Index-5 (mFI-5) scores, fracture characteristics (angulation, displacement, gap, and comminution), and masseter cross-sectional area (MCSA). Sarcopenia was defined as 1 SD below sex-specific means. Multivariate Cox regressions were used to evaluate the association between MCSA and mortality, adjusting for age, sex, body mass index, Charlson Comorbidity Index, Injury Severity Scores, mFI-5, and type of treatment (operative vs conservative). Kaplan-Meier survival curves illustrated cumulative survival. RESULTS Among 72 patients (mean age: 80.9 ± 9.5 years, 58.3% females), 14 (19.4%) had masseter sarcopenia. By 1-year postinjury, 16 (22.2%) died, increasing to 22 (30.6%) by 2 years. Masseter sarcopenia significantly predicted 1-year mortality (adjusted hazard ratio [aHR]:5.31 [95% CI: 1.44-19.62], P = .01) whereas mFI-5 predicted 2-year mortality (aHR: 1.96 [95% CI: 1.09-3.52], P = .02). By 5 years, 38 (52.8%) died, including 9 (40.9%, 95% CI: 18.6.0%-63.2%), treated operatively and 29 (58.0%, 95% CI: 43.8%-72.2%) treated conservatively (P = .18). Among sarcopenic, 9 (64.3%, 95% CI: 35.6%-93.0%) died, compared with 29 (50.0%, 95% CI: 36.7%-63.3%) nonsarcopenic (P = .34). Age was consistent predictor of mortality within 3 years to 5 years after injury (aHR: 1.08 [95% CI: 1.03-1.13], P < .01). CONCLUSION Masseter sarcopenia is significantly associated with mortality within 1 year after Type II odontoid fractures in elderly patients. In this cohort, 30.6% died by 2 years and 52.8% by 5 years. Early sarcopenia identification using MCSA may aid in prognostication and postinjury management. Level of Evidence: Therapeutic Level III.
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Affiliation(s)
- Joseph E Nassar
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, East Providence, Rhode Island, USA
| | - Brian McCrae
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, East Providence, Rhode Island, USA
| | - Manjot Singh
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, East Providence, Rhode Island, USA
| | - Michael J Farias
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, East Providence, Rhode Island, USA
| | - Jinseong Kim
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, East Providence, Rhode Island, USA
| | - Peter G Passias
- Department of Orthopaedic Surgery, Division of Spine, Duke University Medical Center, Durham, North Carolina, USA
| | - Bassel G Diebo
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, East Providence, Rhode Island, USA
| | - Alan H Daniels
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, East Providence, Rhode Island, USA
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Riviati N, Darma S, Reagan M, Iman MB, Syafira F, Indra B. Relationship between Muscle Mass and Muscle Strength with Bone Density in Older Adults: A Systematic Review. Ann Geriatr Med Res 2025; 29:1-14. [PMID: 39444196 PMCID: PMC12010744 DOI: 10.4235/agmr.24.0113] [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: 06/27/2024] [Revised: 08/31/2024] [Accepted: 10/15/2024] [Indexed: 10/25/2024] Open
Abstract
BACKGROUND Understanding the relationship between muscle mass, muscle strength, and bone density in older adults is crucial for addressing age-related conditions like osteoporosis and sarcopenia. This review aims to evaluate the relationship between muscle mass and muscle strength with bone density in older adults. METHODS This systematic review, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, involved a comprehensive search across seven databases from 2014 to April 2024. Included were observational studies in English and Indonesian on adults aged 60 and older. The Appraisal Tool for Cross-Sectional Studies (AXIS) tool assessed the risk of bias, and the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) framework evaluated the evidence quality. Study selection was independently reviewed, and consensus was reached through discussion. RESULTS Ten studies were included. For muscle mass and bone density, five studies showed a significant association, while four did not. For muscle strength and bone density, four of seven studies reported a significant association. However, the evidence quality was low due to inconsistency. CONCLUSION The relationship between muscle mass, muscle strength, and bone density in older adults shows variability and inconsistent evidence.
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Affiliation(s)
- Nur Riviati
- Department of Internal Medicine, University of Sriwijaya, Palembang, Indonesia
| | - Surya Darma
- Department of Internal Medicine, University of Sriwijaya, Palembang, Indonesia
| | - Muhammad Reagan
- Department of Internal Medicine, University of Sriwijaya, Palembang, Indonesia
| | | | - Fara Syafira
- Faculty of Medicine, University of Sriwijaya, Palembang, Indonesia
| | - Bima Indra
- Faculty of Medicine, University of Sriwijaya, Palembang, Indonesia
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Lin W, Chow SKH, Cui C, Liu C, Wang Q, Chai S, Wong RMY, Zhang N, Cheung WH. Wnt/β-catenin signaling pathway as an important mediator in muscle and bone crosstalk: A systematic review. J Orthop Translat 2024; 47:63-73. [PMID: 39007034 PMCID: PMC11245956 DOI: 10.1016/j.jot.2024.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 03/21/2024] [Accepted: 06/02/2024] [Indexed: 07/16/2024] Open
Abstract
Background The interaction between muscle and bone is shown to be clinically important but the underlying mechanisms are largely unknown. The canonical Wnt/β-catenin signaling pathway is reported to be involved in muscle-bone crosstalk, but its detailed function remains unclear. This systematic review aims to investigate and elucidate the role of the Wnt/β-catenin signaling pathways in muscle-bone crosstalk. Methods We conducted a literature search on the Web of Science, PubMed, EBSCO and Embase with keywords "Wnt*", "bone*" and "muscle*". A systematic review was completed according to the guideline of preferred reporting items of systematic reviews and meta-analyses (PRISMA). Data synthesis included species (human, animal or cell type used), treatments involved, outcome measures and key findings with respect to Wnts. Results Seventeen papers were published from 2007 to 2021 and were extracted from a total of 1529 search results in the databases of Web of Science (468 papers), PubMed (457 papers), EBSCO (371) and Embase (233). 12 Wnt family members were investigated in the papers, including Wnt1, Wnt2, Wnt2b, Wnt3a, Wnt4, Wnt5a, Wnt8a, Wnt8b, Wnt9a, Wnt10a, Wnt10b and Wnt16. Many studies showed that muscles were able to increase or decrease osteogenesis of bone, while bone increased myogenesis of muscle through Wnt/β-catenin signaling pathways. Wnt3a, Wnt4 and Wnt10b were shown to play important roles in the crosstalk between muscle and bone. Conclusions Wnt3a, Wnt4 and Wnt10b are found to play important mediatory roles in muscle-bone crosstalk. The role of Wnt4 was mostly found to regulate muscle from the bone side. Whilst the role of Wnt10b during muscle ageing was proposed, current evidence is insufficient to clarify the specific role of Wnt/β-catenin signaling in the interplay between sarcopenia and osteoporosis. More future studies are required to investigate the exact regulatory roles of Wnts in muscle-bone crosstalk in musculoskeletal disease models such as sarcopenia and osteoporosis. Translational potential of this article The systematic review provides an extensive overview to reveal the roles of Wnt/β-catenin signaling pathways in muscle-bone crosstalk. These results provide novel research directions to further understand the underlying mechanism of sarcopenia, osteoporosis, and their crosstalk, finally helping the future development of new therapeutic interventions.
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Affiliation(s)
- Wujian Lin
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Simon Kwoon Ho Chow
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Can Cui
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
| | - Chaoran Liu
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
| | - Qianjin Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
| | - Senlin Chai
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
| | - Ronald Man Yeung Wong
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
| | - Ning Zhang
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
| | - Wing Hoi Cheung
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region of China
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Gollie JM, Ryan AS, Sen S, Patel SS, Kokkinos PF, Harris-Love MO, Scholten JD, Blackman MR. Exercise for patients with chronic kidney disease: from cells to systems to function. Am J Physiol Renal Physiol 2024; 326:F420-F437. [PMID: 38205546 PMCID: PMC11208028 DOI: 10.1152/ajprenal.00302.2023] [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: 09/25/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Chronic kidney disease (CKD) is among the leading causes of death and disability, affecting an estimated 800 million adults globally. The underlying pathophysiology of CKD is complex creating challenges to its management. Primary risk factors for the development and progression of CKD include diabetes mellitus, hypertension, age, obesity, diet, inflammation, and physical inactivity. The high prevalence of diabetes and hypertension in patients with CKD increases the risk for secondary consequences such as cardiovascular disease and peripheral neuropathy. Moreover, the increased prevalence of obesity and chronic levels of systemic inflammation in CKD have downstream effects on critical cellular functions regulating homeostasis. The combination of these factors results in the deterioration of health and functional capacity in those living with CKD. Exercise offers protective benefits for the maintenance of health and function with age, even in the presence of CKD. Despite accumulating data supporting the implementation of exercise for the promotion of health and function in patients with CKD, a thorough description of the responses and adaptations to exercise at the cellular, system, and whole body levels is currently lacking. Therefore, the purpose of this review is to provide an up-to-date comprehensive review of the effects of exercise training on vascular endothelial progenitor cells at the cellular level; cardiovascular, musculoskeletal, and neural factors at the system level; and physical function, frailty, and fatigability at the whole body level in patients with CKD.
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Affiliation(s)
- Jared M Gollie
- Research and Development Service, Washington DC Veterans Affairs Medical Center, Washington, District of Columbia, United States
- Department of Health, Human Function, and Rehabilitation Sciences, The George Washington University, Washington, District of Columbia, United States
| | - Alice S Ryan
- Department of Medicine, University of Maryland, Baltimore, Maryland, United States
- Division of Geriatrics and Palliative Medicine, Baltimore Veterans Affairs Medical Center, Baltimore, Maryland, United States
| | - Sabyasachi Sen
- Department of Medicine, Washington DC Veterans Affairs, Medical Center, Washington, District of Columbia, United States
- Department of Medicine, The George Washington University, Washington, District of Columbia, United States
| | - Samir S Patel
- Research and Development Service, Washington DC Veterans Affairs Medical Center, Washington, District of Columbia, United States
- Department of Medicine, Washington DC Veterans Affairs, Medical Center, Washington, District of Columbia, United States
- Department of Medicine, The George Washington University, Washington, District of Columbia, United States
| | - Peter F Kokkinos
- Division of Cardiology, Washington DC Veterans Affairs Medical Center, Washington, District of Columbia, United States
- Department of Kinesiology and Health, Rutgers University, New Brunswick, New Jersey, United States
| | - Michael O Harris-Love
- Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
- Geriatric Research Education and Clinical Center, Eastern Colorado Veterans Affairs Health Care System, Denver, Colorado, United States
| | - Joel D Scholten
- Physical Medicine and Rehabilitation Service, Washington DC Veterans Affairs Medical Center, Washington, District of Columbia, United States
| | - Marc R Blackman
- Research and Development Service, Washington DC Veterans Affairs Medical Center, Washington, District of Columbia, United States
- Department of Medicine, Washington DC Veterans Affairs, Medical Center, Washington, District of Columbia, United States
- Department of Medicine, The George Washington University, Washington, District of Columbia, United States
- Department of Medicine, Georgetown University, Washington, District of Columbia, United States
- Department of Rehabilitation Medicine, Georgetown University, Washington, District of Columbia, United States
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Qu Z, Shi L, Wu Z, Lin P, Zhang G, Cong X, Zhao X, Ge H, Yan S, Jiang L, Wu H. Kinesin light chain 1 stabilizes insulin receptor substrate 1 to regulate the IGF-1-AKT signaling pathway during myoblast differentiation. FASEB J 2024; 38:e23432. [PMID: 38300173 DOI: 10.1096/fj.202201065rr] [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: 07/13/2022] [Revised: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 02/02/2024]
Abstract
The IGF signaling pathway plays critical role in regulating skeletal myogenesis. We have demonstrated that KIF5B, the heavy chain of kinesin-1 motor, promotes myoblast differentiation through regulating IGF-p38MAPK activation. However, the roles of the kinesin light chain (Klc) in IGF pathway and myoblast differentiation remain elusive. In this study, we found that Klc1 was upregulated during muscle regeneration and downregulated in senescence mouse muscles and dystrophic muscles from mdx (X-linked muscular dystrophic) mice. Gain- and loss-of-function experiments further displayed that Klc1 promotes AKT-mTOR activity and positively regulates myogenic differentiation. We further identified that the expression levels of IRS1, the critical node of IGF-1 signaling, are downregulated in Klc1-depleted myoblasts. Coimmunoprecipitation study revealed that IRS1 interacted with the 88-154 amino acid sequence of Klc1 via its PTB domain. Notably, the reduced Klc1 levels were found in senescence and osteoporosis skeletal muscle samples from both mice and human. Taken together, our findings suggested a crucial role of Klc1 in the regulation of IGF-AKT pathway during myogenesis through stabilizing IRS1, which might ultimately influence the development of muscle-related disorders.
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Affiliation(s)
- Zihao Qu
- Department of Orthopaedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Linjing Shi
- Department of Orthopaedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhen Wu
- Department of Orthopaedic Surgery, The First Clinical Medical College of Zhejiang University of Traditional Chinese Medicine, Hangzhou, China
| | - Peng Lin
- Department of Orthopaedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guangan Zhang
- Department of Biochemistry and Molecular Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoxia Cong
- Department of Biochemistry and Molecular Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiang Zhao
- Department of Orthopaedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Huiqing Ge
- Department of Respiratory Care, Regional Medical Center for the National Institute of Respiratory Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shigui Yan
- Department of Orthopaedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liangjun Jiang
- Department of Orthopaedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haobo Wu
- Department of Orthopaedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Zhang J, Gao Y, Yan J. Roles of Myokines and Muscle-Derived Extracellular Vesicles in Musculoskeletal Deterioration under Disuse Conditions. Metabolites 2024; 14:88. [PMID: 38392980 PMCID: PMC10891558 DOI: 10.3390/metabo14020088] [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: 12/19/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 02/25/2024] Open
Abstract
Prolonged inactivity and disuse conditions, such as those experienced during spaceflight and prolonged bedrest, are frequently accompanied by detrimental effects on the motor system, including skeletal muscle atrophy and bone loss, which greatly increase the risk of osteoporosis and fractures. Moreover, the decrease in glucose and lipid utilization in skeletal muscles, a consequence of muscle atrophy, also contributes to the development of metabolic syndrome. Clarifying the mechanisms involved in disuse-induced musculoskeletal deterioration is important, providing therapeutic targets and a scientific foundation for the treatment of musculoskeletal disorders under disuse conditions. Skeletal muscle, as a powerful endocrine organ, participates in the regulation of physiological and biochemical functions of local or distal tissues and organs, including itself, in endocrine, autocrine, or paracrine manners. As a motor organ adjacent to muscle, bone tissue exhibits a relative lag in degenerative changes compared to skeletal muscle under disuse conditions. Based on this phenomenon, roles and mechanisms involved in the communication between skeletal muscle and bone, especially from muscle to bone, under disuse conditions have attracted widespread attention. In this review, we summarize the roles and regulatory mechanisms of muscle-derived myokines and extracellular vesicles (EVs) in the occurrence of muscle atrophy and bone loss under disuse conditions, as well as discuss future perspectives based on existing research.
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Affiliation(s)
- Jie Zhang
- Institute of Special Medicine, Shanxi Medical University, Jinzhong 030619, China;
| | - Yunfang Gao
- Shaanxi Key Laboratory for Animal Conservation, College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Jiangwei Yan
- Institute of Special Medicine, Shanxi Medical University, Jinzhong 030619, China;
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Zhao Z, Yan K, Guan Q, Guo Q, Zhao C. Mechanism and physical activities in bone-skeletal muscle crosstalk. Front Endocrinol (Lausanne) 2024; 14:1287972. [PMID: 38239981 PMCID: PMC10795164 DOI: 10.3389/fendo.2023.1287972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 12/05/2023] [Indexed: 01/22/2024] Open
Abstract
Bone and skeletal muscle work in coordination to maintain the function of the musculoskeletal system, in which skeletal muscle contraction drives the movement of the bone lever system while bone provides insert sites for skeletal muscle through the bone-muscle junction. Existing evidence suggests that factors secreted by skeletal muscle and bone mediate the interaction between the two tissues. Herein, we focused on the relationship between skeletal muscle and bone and the underlying mechanism of the interaction. Exercise can promote bone strength and secrete osteocalcin and insulin-like growth factor I into the blood, thus improving muscle quality. In addition, exercise can also promote myostatin, interleukin-6, Irisin, and apelin in muscles to enter the blood so that they can act on bones to maintain the balance between bone absorption and bone formation. There is a special regulatory axis interleukin-6/osteocalcin between myokines and osteokines, which is mainly influenced by exercise. Therefore, we pay attention to the important factors in the bone-muscle intersection that are affected by exercise, which were found or their functions were expanded, which strengthened the connection between organs of the whole body, highlighting the importance of exercise and contributing to the diagnosis, prevention, and treatment of osteoporosis and sarcopenia in the clinic.
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Affiliation(s)
- Zhonghan Zhao
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Kai Yan
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Qiao Guan
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Qiang Guo
- Department of Orthopaedics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Can Zhao
- College of Athletic Performance, Shanghai University of Sport, Shanghai, China
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Suresh Kumar H, Barnett EN, Fowlkes JL, Kalaitzoglou E, Annamalai RT. Biomechanical Stimulation of Muscle Constructs Influences Phenotype of Bone Constructs by Modulating Myokine Secretion. JBMR Plus 2023; 7:e10804. [PMID: 38025033 PMCID: PMC10652181 DOI: 10.1002/jbm4.10804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/22/2023] [Accepted: 07/24/2023] [Indexed: 12/01/2023] Open
Abstract
Diabetes is a chronic metabolic disorder that can lead to diabetic myopathy and bone diseases. The etiology of musculoskeletal complications in such metabolic disorders and the interplay between the muscular and osseous systems are not well understood. Exercise training promises to prevent diabetic myopathy and bone disease and offer protection. Although the muscle-bone interaction is largely biomechanical, the muscle secretome has significant implications for bone biology. Uncoupling effects of biophysical and biochemical stimuli on the adaptive response of bone during exercise training may offer therapeutic targets for diabetic bone disease. Here, we have developed an in vitro model to elucidate the effects of mechanical strain on myokine secretion and its impact on bone metabolism decoupled from physical stimuli. We developed bone constructs using cross-linked gelatin, which facilitated osteogenic differentiation of osteoprogenitor cells. Then muscle constructs were made from fibrin, which enabled myoblast differentiation and myotube formation. We investigated the myokine expression by muscle constructs under strain regimens replicating endurance (END) and high-intensity interval training (HIIT) in hyperglycemic conditions. In monocultures, both regimens induced higher expression of Il15 and Igf1, whereas END supported more myoblast differentiation and myotube maturation than HIIT. When co-cultured with bone constructs, HIIT regimen increased Glut4 expression in muscle constructs more than END, supporting higher glucose uptake. Likewise, the muscle constructs under the HIIT regimen promoted a healthier and more matured bone phenotype than END. Under static conditions, myostatin (Mstn) expression was significantly downregulated in muscle constructs co-cultured with bone constructs compared with monocultures. Together, our in vitro co-culture system allowed orthogonal manipulation of mechanical strain on muscle constructs while facilitating bone-muscle biochemical cross-talk. Such systems can provide an individualized microenvironment that allows decoupled biomechanical manipulation, help identify molecular targets, and develop engineered therapies for metabolic bone disease. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
| | - Edwina N. Barnett
- Department of Biomedical EngineeringUniversity of KentuckyLexingtonKYUSA
| | - John L. Fowlkes
- Barnstable Brown Diabetes CenterLexingtonKYUSA
- Department of PediatricsUniversity of KentuckyLexingtonKYUSA
| | - Evangelia Kalaitzoglou
- Barnstable Brown Diabetes CenterLexingtonKYUSA
- Department of PediatricsUniversity of KentuckyLexingtonKYUSA
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Bunn RC, Adatorwovor R, Smith RR, Ray PD, Fields SE, Keeble AR, Fry CS, Uppuganti S, Nyman JS, Fowlkes JL, Kalaitzoglou E. Pharmacologic Inhibition of Myostatin With a Myostatin Antibody Improves the Skeletal Muscle and Bone Phenotype of Male Insulin-Deficient Diabetic Mice. JBMR Plus 2023; 7:e10833. [PMID: 38025035 PMCID: PMC10652179 DOI: 10.1002/jbm4.10833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/18/2023] [Accepted: 10/01/2023] [Indexed: 12/01/2023] Open
Abstract
Type 1 diabetes (T1D) is associated with low bone and muscle mass, increased fracture risk, and impaired skeletal muscle function. Myostatin, a myokine that is systemically elevated in humans with T1D, negatively regulates muscle mass and bone formation. We investigated whether pharmacologic myostatin inhibition in a mouse model of insulin-deficient, streptozotocin (STZ)-induced diabetes is protective for bone and skeletal muscle. DBA/2J male mice were injected with low-dose STZ (diabetic) or vehicle (non-diabetic). Subsequently, insulin or palmitate Linbits were implanted and myostatin (REGN647-MyoAb) or control (REGN1945-ConAb) antibody was administered for 8 weeks. Body composition and contractile muscle function were assessed in vivo. Systemic myostatin, P1NP, CTX-I, and glycated hemoglobin (HbA1c) were quantified, and gastrocnemii were weighed and analyzed for muscle fiber composition and gene expression of selected genes. Cortical and trabecular parameters were analyzed (micro-computed tomography evaluations of femur) and cortical bone strength was assessed (three-point bending test of femur diaphysis). In diabetic mice, the combination of insulin/MyoAb treatment resulted in significantly higher lean mass and gastrocnemius weight compared with MyoAb or insulin treatment alone. Similarly, higher raw torque was observed in skeletal muscle of insulin/MyoAb-treated diabetic mice compared with MyoAb or insulin treatment. Additionally, muscle fiber cross-sectional area (CSA) was lower with diabetes and the combination treatment with insulin/MyoAb significantly improved CSA in type II fibers. Insulin, MyoAb, or insulin/MyoAb treatment improved several parameters of trabecular architecture (eg, bone volume fraction [BV/TV], trabecular connectivity density [Conn.D]) and cortical structure (eg, cortical bone area [Ct. Ar.], minimum moment of inertia [Imin]) in diabetic mice. Lastly, cortical bone biomechanical properties (stiffness and yield force) were also improved with insulin or MyoAb treatment. In conclusion, pharmacologic myostatin inhibition is beneficial for muscle mass, muscle function, and bone properties in this mouse model of T1D and its effects are both independent and additive to the positive effects of insulin. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- R Clay Bunn
- Department of Pediatrics and Barnstable Brown Diabetes CenterUniversity of KentuckyLexingtonKYUSA
| | - Reuben Adatorwovor
- Department of Biostatistics, College of Public HealthUniversity of KentuckyLexingtonKYUSA
| | - Rebecca R Smith
- Sanders‐Brown Center on AgingUniversity of KentuckyLexingtonKYUSA
| | - Philip D Ray
- Department of PediatricsUniversity of KentuckyLexingtonKYUSA
| | - Sarah E Fields
- College of Agriculture, Food and EnvironmentUniversity of KentuckyLexingtonKYUSA
| | | | | | - Sasidhar Uppuganti
- Department of Orthopaedic SurgeryVanderbilt University Medical CenterNashvilleTNUSA
| | - Jeffry S Nyman
- Department of Orthopaedic SurgeryVanderbilt University Medical CenterNashvilleTNUSA
- Department of Veterans AffairsTennessee Valley Healthcare SystemNashvilleTNUSA
| | - John L Fowlkes
- Department of Pediatrics and Barnstable Brown Diabetes CenterUniversity of KentuckyLexingtonKYUSA
| | - Evangelia Kalaitzoglou
- Department of Pediatrics and Barnstable Brown Diabetes CenterUniversity of KentuckyLexingtonKYUSA
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Jaberi S, Fahnestock M. Mechanisms of the Beneficial Effects of Exercise on Brain-Derived Neurotrophic Factor Expression in Alzheimer's Disease. Biomolecules 2023; 13:1577. [PMID: 38002258 PMCID: PMC10669442 DOI: 10.3390/biom13111577] [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: 08/28/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 11/26/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a key molecule in promoting neurogenesis, dendritic and synaptic health, neuronal survival, plasticity, and excitability, all of which are disrupted in neurological and cognitive disorders such as Alzheimer's disease (AD). Extracellular aggregates of amyloid-β (Aβ) in the form of plaques and intracellular aggregates of hyperphosphorylated tau protein have been identified as major pathological insults in the AD brain, along with immune dysfunction, oxidative stress, and other toxic stressors. Although aggregated Aβ and tau lead to decreased brain BDNF expression, early losses in BDNF prior to plaque and tangle formation may be due to other insults such as oxidative stress and contribute to early synaptic dysfunction. Physical exercise, on the other hand, protects synaptic and neuronal structure and function, with increased BDNF as a major mediator of exercise-induced enhancements in cognitive function. Here, we review recent literature on the mechanisms behind exercise-induced BDNF upregulation and its effects on improving learning and memory and on Alzheimer's disease pathology. Exercise releases into the circulation a host of hormones and factors from a variety of peripheral tissues. Mechanisms of BDNF induction discussed here are osteocalcin, FNDC5/irisin, and lactate. The fundamental mechanisms of how exercise impacts BDNF and cognition are not yet fully understood but are a prerequisite to developing new biomarkers and therapies to delay or prevent cognitive decline.
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Affiliation(s)
- Sama Jaberi
- Graduate Program in Neuroscience, Faculty of Health Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada;
| | - Margaret Fahnestock
- Department of Psychiatry and Behavioural Neurosciences, Faculty of Health Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
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11
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Song Y, Wang H, Chen L, Shangguan Y, Jia H. Effects of blood flow restriction training on bone turnover markers, microstructure, and biomechanics in rats. Front Endocrinol (Lausanne) 2023; 14:1194364. [PMID: 37680889 PMCID: PMC10482404 DOI: 10.3389/fendo.2023.1194364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 07/12/2023] [Indexed: 09/09/2023] Open
Abstract
Objective The present study aimed to investigate the effects of blood flow restriction training on muscle strength, bone tissue structure material, and biomechanical properties in rats applying various exercise interventions and to analyze the process by identifying the bone turnover markers, it provides a theoretical basis for the application of BFRT in clinical rehabilitation. Methods A total of 24, 3-month-old male SD (Sprague Dawley) rats were randomly divided into pressurized control group (CON, n=6), low-intensity training group (LIRT, n=6), high-intensity training group (HIRT, n=6), and blood flow restriction training group (LIBFR, n=6) for 8-week ladder-climbing exercises. The pressured control group were given only ischemia treatments and did not undertake any burden. The low-intensity training group was allowed to climb the ladder with 30% of the maximum voluntary carrying capacity (MVCC). The rats in the high-intensity training group were allowed to climb the ladder with 70% MVCC. The blood flow restriction training group climbed the ladder with 30% MVCC while imposing blood flow restriction. Before sampling, the final MVCC was measured using a ladder-climbing protocol with progressively increasing weight loading. The serum, muscle, and bone were removed for sampling. The concentrations of the bone turnover markers PINP, BGP, and CTX in the serum were measured using ELISA. The bone mineral density and microstructure of femur bones were measured using micro-CT. Three-point bending and torsion tests were performed by a universal testing machine to measure the material mechanics and structural mechanics indexes of the femur bone. Results The results of maximum strength test showed that the MVCC in LIRT, HIRT, and LIBFR groups was significantly greater than in the CON group, while the MVCC in the HIRT group was significantly higher than that in the LIRT group (P<0.05). According to the results of the bone turnover marker test, the concentrations of bone formation indexes PINP (amino-terminal extension peptide of type I procollagen) and BGP (bone gla protein) were significantly lower in the CON group than in the HIRT group (P<0.01), while those were significantly higher in the LIRT group compared to the HIRT group (P<0.01). In terms of bone resorption indexes, significant differences were identified only between the HIRT and other groups (P<0.05). The micro-CT examination revealed that the HIRT group had significantly greater bone density index values than the CON and LIRT groups (P<0.05). The results of three-point bending and torsion test by the universal material testing machine showed that the elastic modulus and maximum load indexes of the HIRT group were significantly smaller than those of the LIBFR group (P<0.05). The fracture load indexes in the HIRT group were significantly smaller than in the LIBFR group (P<0.05). Conclusion 1. LIRT, HIRT, LIBFR, and CON all have significant differences, and this training helps to improve maximum strength, with HIRT being the most effective. 2. Blood flow restriction training can improve the expression of bone turnover markers, such as PINP and BGP, which promote bone tissue formation. 3. Blood flow restriction training can improve muscle strength and increase the positive development of bone turnover markers, thereby improving bone biomechanical properties such as bone elastic modulus and maximum load.
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Affiliation(s)
- Yawei Song
- Jiangsu Province "Sports and Health Project" Collaborative Innovation Center, Nanjing Sport Institute, Nanjing, China
- Department of Sports and Health Sciences, Nanjing, China
| | - Hao Wang
- Jiangsu Province "Sports and Health Project" Collaborative Innovation Center, Nanjing Sport Institute, Nanjing, China
- Department of Sports and Health Sciences, Nanjing, China
| | - Liang Chen
- Jiangsu Province "Sports and Health Project" Collaborative Innovation Center, Nanjing Sport Institute, Nanjing, China
- Department of Sports and Health Sciences, Nanjing, China
| | | | - Hu Jia
- Jiangsu Province "Sports and Health Project" Collaborative Innovation Center, Nanjing Sport Institute, Nanjing, China
- Department of Sports and Health Sciences, Nanjing, China
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12
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Wang X, Wang Y, Yang X, Mohd Nasiruddin NJB, Dong D, Samsudin SB, Qin XM. Effects of blood flow restriction training on bone metabolism: a systematic review and meta-analysis. Front Physiol 2023; 14:1212927. [PMID: 37621760 PMCID: PMC10445948 DOI: 10.3389/fphys.2023.1212927] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023] Open
Abstract
Introduction: The efficacy of low-intensity blood flow restriction (LI-BFR) training programs in bone metabolism remains unclear compared to low-intensity (LI) training and high-intensity (HI) training. The aim of this review was to quantitatively identify the effects of LI-BFR training on changes in bone formation markers (i.e., bone-specific alkaline phosphatase, BALP), bone resorption (i.e., C-terminal telopeptide of type I collagen, CTX) and bone mineral density (BMD) compared with conventional resistance training programmes. Additionally, the effectiveness of walking with and without BFR was assessed. Methods: PubMed, Scopus, SPORTDiscus, Web of Science and Google Scholar databases were searched for articles based on eligibility criteria. Review Manager Version 5.4 was used for Meta-analysis. Physiotherapy Evidence Database (PEDro) was applied to assess the methodological quality of studies. Results: 12 articles were included in the meta-analysis, with a total of 378 participants. Meta-results showed that compared with LI training, LI-BFR training induced greater increments in BALP (young adults: MD = 6.70, p < 0.001; old adults: MD = 3.94, p = 0.002), slight increments in BMD (young adults: MD = 0.05, p < 0.00001; old adults: MD = 0.01, p < 0.00001), and greater decrements in CTX (young adults: MD = -0.19, p = 0.15; old adults: MD = -0.07, p = 0.003). Compared with HI training, LI-BFR training produced smaller increments in BALP (young adults: MD = -6.87, p = 0.24; old adults: MD = -0.6, p = 0.58), similar increments in BMD (MD = -0.01, p = 0.76) and similar decrements in CTX (young adults: MD = 0, p = 0.96; old adults: MD = -0.08, p = 0.13). Although there were only two studies on walking training intervention, walking training with BFR had a better effect on bone metabolism than training without BFR. Discussion: In conclusion, LI-BFR training induces greater improvements in bone health than LI training, but is less effective than HI training. Therefore, LI-BFR training may be an effective and efficient way to improve bone health for untrained individuals, older adults, or those undergoing musculoskeletal rehabilitation. Clinical Trial Registration: [https://www.crd.york.ac.uk/prospero/], identifier [CRD42023411837].
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Affiliation(s)
- Xiaolin Wang
- Department of Sport Studies, Faculty of Educational Studies, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - Yifei Wang
- Department of Physical Education, Ludong University, Yantai, China
| | - Xuezhen Yang
- School of Nursing, Shandong First Medical University, Jinan, China
| | | | - Delong Dong
- Department of Physical Education, Ludong University, Yantai, China
| | - Shamsulariffin Bin Samsudin
- Department of Sport Studies, Faculty of Educational Studies, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - Xin-Min Qin
- Department of Smart Health Science and Technology Convergence (Sport Science), Department of Sport Science, Kangwon National University, Chuncheon, Republic of Korea
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13
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Ras J, Soteriades ES, Smith DL, Kengne AP, Leach L. Association between physical fitness and musculoskeletal health in firefighters. Front Physiol 2023; 14:1210107. [PMID: 37469568 PMCID: PMC10352848 DOI: 10.3389/fphys.2023.1210107] [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: 04/25/2023] [Accepted: 06/19/2023] [Indexed: 07/21/2023] Open
Abstract
Introduction: Firefighters are often placed in situations that require high levels of physical exertion, leading to significant strain on firefighters' musculoskeletal system, predisposing them to musculoskeletal discomfort (MSD) and/or musculoskeletal injury (MSI). Physical fitness programs are often recommended and justified, in part, to prevent injuries. The aim of this study was to determine the association between physical fitness and musculoskeletal health (MSH) in firefighters. Methods: A total of 308 full-time firefighters took part in the study conducted in Cape Town, South Africa. Physical fitness tests encompassed a non-exercise estimation for cardiorespiratory fitness, grip and leg strength for upper and lower body strength, push-ups and sit-ups for muscular endurance, and sit-and-reach for flexibility. The Nordic Musculoskeletal Questionnaire and Cornell Musculoskeletal Discomfort Questionnaire were used to determine MSIs and MSD, respectively. A p-value <0.05 indicated statistical significance. Results: Every one-unit increase in AbVO2max, push-ups, sit-ups, and sit-and-reach decreased the odds of firefighters reporting MSIs by 5% (p = 0.005), 3% (p = 0.017), 3% (p = 0.006), and 3% (p = 0.034), respectively. Every one repetition increase in push-up capacity increased the odds of firefighters reporting neck, elbow and forearm, wrist and hand, and thigh discomfort by 3% (p = 0.039), 4% (p = 0.031), 5% (p = 0.002), and 5%` (p = 0.007), respectively. Every one repetition increase in sit-up capacity increased the odds of firefighters reporting upper back discomfort and thigh discomfort by 5% (p = 0.045) and 7% (p = 0.013), respectively. Conclusion: Maintenance of physical fitness is likely beneficial in reducing MSIs, which, however, may increase the feeling of MSD in firefighters. In addition, it may be noticed that there is an ideal level of physical fitness that is conducive to the reduction of MSIs and should be studied further.
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Affiliation(s)
- Jaron Ras
- Department of Sport, Recreation and Exercise Science, Faculty of Community and Health Sciences, University of the Western Cape, Cape Town, South Africa
| | - Elpidoforos S. Soteriades
- Healthcare Management Program, School of Economics and Management, Open University of Cyprus, Nicosia, Cyprus
- Environmental and Occupational Medicine and Epidemiology (EOME), Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Denise L. Smith
- Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Andre P. Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Lloyd Leach
- Department of Sport, Recreation and Exercise Science, Faculty of Community and Health Sciences, University of the Western Cape, Cape Town, South Africa
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14
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Huang T, Li C, Chen F, Xie D, Yang C, Chen Y, Wang J, Li J, Zheng F. Prevalence and risk factors of osteosarcopenia: a systematic review and meta-analysis. BMC Geriatr 2023; 23:369. [PMID: 37322416 PMCID: PMC10273636 DOI: 10.1186/s12877-023-04085-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 06/02/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Osteosarcopenia is a syndrome with a concomitant presence of both sarcopenia and osteopenia/osteoporosis. It increases the risk of frailty, falls, fractures, hospitalization, and death. Not only does it burden the lives of older adults, but it also increases the economic burden on health systems around the world. This study aimed to review the prevalence and risk factors of osteosarcopenia to generate important references for clinical work in this area. METHODS Pubmed, Embase, Cochrane Library, Web of Science, CNKI, Wanfang, CBM, and VIP databases were searched from inception until April 24th, 2022. The quality of studies included in the review was evaluated using the NOS and AHRQ Scale. Pooled effects of the prevalence and associated factors were calculated using random or fixed effects models. Egger's test, Begg's test, and funnel plots were used to test the publication bias. Sensitivity analysis and subgroup analysis were conducted to identify the sources of heterogeneity. Statistical analysis was performed using Stata 14.0 and Review Manager 5.4. RESULTS A total of 31 studies involving 15,062 patients were included in this meta-analysis. The prevalence of osteosarcopenia ranged from 1.5 to 65.7%, with an overall prevalence of 21% (95% CI: 0.16-0.26). The risk factors for osteosarcopenia were female (OR 5.10, 95% CI: 2.37-10.98), older age (OR 1.12, 95% CI: 1.03-1.21), and fracture (OR 2.92, 95% CI: 1.62-5.25). CONCLUSION The prevalence of osteosarcopenia was high. Females, advanced age, and history of fracture were independently associated with osteosarcopenia. It is necessary to adopt integrated multidisciplinary management.
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Affiliation(s)
- Tianjin Huang
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Chen Li
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Faxiu Chen
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China.
| | - Dunan Xie
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Chuhua Yang
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Yuting Chen
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Jintao Wang
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Jiming Li
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Fei Zheng
- Medical College of Nanchang University, Nanchang, China
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
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15
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Integrating Untargeted and Targeted Metabolomics Coupled with Pathway Analysis Reveals Muscle Disorder in Osteoporosis on Orchiectomized Mice. Molecules 2023; 28:molecules28062512. [PMID: 36985483 PMCID: PMC10051496 DOI: 10.3390/molecules28062512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
Most osteoporosis (OP) fracture accidents in men are due not only to a low BMD but also because of unhealthy muscle support. However, there has been a limited number of reports about how muscle metabolism is disturbed by OP in males. In this work, a pathway analysis based on metabolomic research was carried out to fill this gap. A classical orchiectomy procedure was adapted to create an OP animal model. A micro-CT and pathological section were applied for a bone and muscle phenotype assessment and a pathology analysis. UPLC-Q-TOF/MS and UPLC-QQQ-MS/MS were applied to measure metabolites in skeletal muscle samples among groups. In total, 31 significantly differential metabolites were detected by comparing healthy models and OP animals, and 7 representative metabolites among the 31 significantly differential metabolites were identified and validated experimentally by UPLC-QQQ-MS/MS (xanthine, L-phenylalanine, choline, hypoxanthine, L-tryptophan, succinic acid, and L-tyrosine). An ingenuity pathway analysis (IPA) analysis revealed significantly enriched pathways involved in inflammation, oxidative stress, and necrosis. To our best knowledge, this is the first study to investigate early muscle disorder processes in Cases of OP at a metabolic level, facilitating early intervention and protection from OP fractures for aged men.
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16
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Cui Y, Yi Q, Sun W, Huang D, Zhang H, Duan L, Shang H, Wang D, Xiong J. Molecular basis and therapeutic potential of myostatin on bone formation and metabolism in orthopedic disease. Biofactors 2023; 49:21-31. [PMID: 32997846 DOI: 10.1002/biof.1675] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 12/17/2022]
Abstract
Myostatin, a member of the transforming growth factor-β (TGF-β) superfamily, is a key autocrine/paracrine inhibitor of skeletal muscle growth. Recently, researchers have postulated that myostatin is a negative regulator of bone formation and metabolism. Reportedly, myostatin is highly expressed in the fracture area, affecting the endochondral ossification process during the early stages of fracture healing. Furthermore, myostatin is highly expressed in the synovium of patients with rheumatoid arthritis (RA) and is an effective therapeutic target for interfering with osteoclast formation and joint destruction in RA. Thus, myostatin is a potent anti-osteogenic factor and a direct modulator of osteoclast differentiation. Evaluation of the molecular pathway revealed that myostatin can activate SMAD and mitogen-activated protein kinase signaling pathways, inhibiting the Wnt/β-catenin pathway to synergistically regulate muscle and bone growth and metabolism. In summary, inhibition of myostatin or the myostatin signaling pathway has therapeutic potential in the treatment of orthopedic diseases. This review focused on the effects of myostatin on bone formation and metabolism and discussed the potential therapeutic effects of inhibiting myostatin and its pathways in related orthopedic diseases.
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Affiliation(s)
- Yinxing Cui
- Guangzhou Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
| | - Qian Yi
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
| | - Weichao Sun
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
| | - Dixi Huang
- Guangzhou Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
| | - Hui Zhang
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
- University of South China, Hengyang, Hunan, China
| | - Li Duan
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
| | - Hongxi Shang
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
| | - Daping Wang
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
| | - Jianyi Xiong
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, Guangdong, China
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17
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Bim MA, Pinto ADA, de Angelo HCC, Gonzaga I, Guimarães ACDA, Felden ÉPG, de Carvalho WRG, Hind K, Pelegrini A. Relationship between body composition and bone mass in normal-weight and overweight adolescents. PeerJ 2022; 10:e14108. [PMID: 36348662 PMCID: PMC9637351 DOI: 10.7717/peerj.14108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 09/02/2022] [Indexed: 11/05/2022] Open
Abstract
Adolescence is a period characterized by large accumulation of bone mass. Body composition is an important determinant of bone mass. This study aimed to assess the relationship of bone mass with lean mass (LM) and fat mass (FM) in normal-weight and overweight adolescents with consideration of sex, sexual maturation and physical activity covariates. A total of 118 adolescents (60 girls and 58 boys) aged between 10 and 14 years participated in the study. Individuals were classified as normal weight or overweight according to body mass index. Bone mineral density (BMD), bone mineral content (BMC), LM, and FM were measured by dual-energy X-ray absorptiometry. In normal-weight adolescents, LM (β = 0.725, p < 0.001) and FM (β = 0.185, p = 0.019) were associated with lumbar spine BMC, whereas in overweight adolescents only LM (β = 0.736, p < 0.001) was associated with lumbar spine BMC. Furthermore, in the normal-weight group, FM and LM were associated with total body less head BMD (LM, β = 0.792, p < 0.001; FM, β = 0.257, p = 0.007) and lumbar spine BMD (LM, β = 0.553, p < 0.001; FM, β = 0.199, p < 0.035). In the overweight group, only LM was associated with total body less head BMD (β = 0.682, p < 0.001) and lumbar spine BMD (β = 0.528, p < 0.001). LM was the main predictor of bone mass in normal-weight and overweight adolescents. FM was associated with bone mass in normal-weight adolescents only. LM may be considered an important and useful marker in adolescents, when investigating bone health in this population. Activities that promote LM gain to reduce the risk of bone fractures and diseases in adulthood are recommended.
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Affiliation(s)
| | | | | | - Isadora Gonzaga
- Universidade do Estado de Santa Catarina, Florianópolis, Brazil
| | | | | | | | - Karen Hind
- Durham University, Durham, United Kingdom
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18
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Norton A, Thieu K, Baumann CW, Lowe DA, Mansky KC. Estrogen regulation of myokines that enhance osteoclast differentiation and activity. Sci Rep 2022; 12:15900. [PMID: 36151243 PMCID: PMC9508086 DOI: 10.1038/s41598-022-19438-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/29/2022] [Indexed: 11/24/2022] Open
Abstract
Osteoporosis and sarcopenia are maladies of aging that negatively affect more women than men. In recent years, it has become apparent that bone and muscle are coupled not only mechanically as muscle pulls on bone, but also at a higher level with myokines, biochemical and molecular signaling occurring between cells of the two tissues. However, how estrogen deficiency in females impacts the chemical crosstalk between bone and muscle cells is not understood. We hypothesize that changes in estrogen signaling alters myokine expression and intensifies bone loss in women. In our present study, we demonstrate that conditioned media from ovariectomized or skeletal muscle deficient in estrogen receptor α (ERα) expression enhances osteoclast differentiation and activity. Using a cytokine array, we identified myokines that have altered expressions in response to loss of estrogen signaling in muscle. Lastly, we demonstrate that conditional deletion of ERα in skeletal muscle results in osteopenia due to an increase in the osteoclast surface per bone surface. Our results suggest that estrogen signaling modulates expression of myokines that regulate osteoclast differentiation and activity.
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Affiliation(s)
- Andrew Norton
- Division of Orthodontics, Department of Developmental and Surgical Sciences, University of Minnesota School of Dentistry, 515 Delaware St SE, Minneapolis, MN, 55455, USA
| | - Kathleen Thieu
- Division of Periodontology, Department of Developmental and Surgical Sciences, University of Minnesota School of Dentistry, Minneapolis, MN, 55455, USA
| | - Cory W Baumann
- Ohio Musculoskeletal and Neurological Institute (OMNI), Department of Biomedical Sciences, Ohio University, Athens, OH, 45701, USA.,Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation Medicine, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
| | - Dawn A Lowe
- Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation Medicine, University of Minnesota Medical School, Minneapolis, MN, 55455, USA.
| | - Kim C Mansky
- Division of Orthodontics, Department of Developmental and Surgical Sciences, University of Minnesota School of Dentistry, 515 Delaware St SE, Minneapolis, MN, 55455, USA.
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19
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Moon HU, Han SJ, Kim HJ, Chung YS, Kim DJ, Choi YJ. The Positive Association between Muscle Mass and Bone Status Is Conserved in Men with Diabetes: A Retrospective Cross-Sectional and Longitudinal Study. J Clin Med 2022; 11:jcm11185370. [PMID: 36143016 PMCID: PMC9505062 DOI: 10.3390/jcm11185370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/01/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
Bone and muscle are known to be correlated and interact chemically each other. Diabetes affects the health status of these two types of organ. There has been lack of studies of men on this topic. This study aims to investigate the relationship between bone and muscle status in men with and without diabetes. This study enrolled 318 and 88 men with and without diabetes, respectively, between April 2007 and December 2017. The appendicular skeletal muscle index (ASMI) was correlated with femoral neck bone mineral density (BMD), total hip BMD, and the trabecular bone score (TBS) in both groups (p < 0.001−0.008). In analysis of the changes in muscle mass and bone-related parameters over the 3 years, the ASMI was correlated with total hip BMD only in diabetes group (p = 0.016) and the TBS in both groups (p < 0.001−0.046). This study showed that the positive correlation between muscle mass and bone status was largely conserved in diabetic group in men. Moreover, in a long-term perspective, muscle mass might be more correlated with the bone microarchitecture or bone quality than bone density, and the association between muscle mass and total hip BMD could be stronger in the diabetic group.
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Affiliation(s)
| | | | | | | | - Dae Jung Kim
- Correspondence: (D.J.K.); (Y.J.C.); Tel.: +82-31-219-5128 (D.J.K.); +82-31-219-4491 (Y.J.C.)
| | - Yong Jun Choi
- Correspondence: (D.J.K.); (Y.J.C.); Tel.: +82-31-219-5128 (D.J.K.); +82-31-219-4491 (Y.J.C.)
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20
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Nakamura M, Imaoka M, Tazaki F, Nakao H, Hida M, Kono R, Kanemoto H, Takeda M. Association between Bone-Related Physiological Substances and Oral Function in Community-Dwelling Older People. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10677. [PMID: 36078393 PMCID: PMC9518358 DOI: 10.3390/ijerph191710677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Oral dysfunction is related to long-term cares including activities of daily living. The objective of this study was to determine the association between oral function and the bone-related physiological substances osteocalcin (OC) and insulin-like growth factor-1 (IGF-1). METHODS The study participants were 139 community-dwelling older people in Japan. Evaluation of oral dysfunction was based on subjective judgment by each participant. Blood analysis included OC, IGF-1, and albumin. RESULTS Univariate and multiple logistic analyses showed that IGF-1 was significantly associated with a "decline in masticatory function" (p = 0.0074 and p = 0.0308, respectively). Receiver operating characteristic curve analysis of IGF-1 levels revealed a threshold score of 108 ng/mL (p < 0.01) for discriminating a "decline in masticatory function". Logistic regression analysis revealed that participants with an IGF-1 level ≤108 ng/mL had an odds ratio of 4.31 (p < 0.05) for a "decline in masticatory function". No significant association was found between the OC level and oral dysfunction. CONCLUSIONS These results suggest a possible relationship between lower serum IGF-1 levels and a decline in masticatory dysfunction in community-dwelling older people.
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Affiliation(s)
- Misa Nakamura
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
- Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
| | - Masakazu Imaoka
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
- Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
| | - Fumie Tazaki
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
- Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
| | - Hidetoshi Nakao
- Department of Physical Therapy, Josai International University, Tougane 283-0002, Chiba, Japan
| | - Mitsumasa Hida
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
- Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
| | - Ryohei Kono
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
- Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
| | - Hideki Kanemoto
- Department of Psychiatry, Graduate School of Medicine, Osaka University, Suita 565-0871, Osaka, Japan
| | - Masatoshi Takeda
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka 597-0104, Osaka, Japan
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21
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Nakamura M, Imaoka M, Nakao H, Hida M, Tazaki F, Imai R, Hashizume H. Association between serum insulin-like growth factor 1 and locomotive syndrome in community-dwelling older people. BMC Musculoskelet Disord 2022; 23:766. [PMID: 35948948 PMCID: PMC9367023 DOI: 10.1186/s12891-022-05738-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/05/2022] [Indexed: 11/25/2022] Open
Abstract
Background Locomotive syndrome (LS) is a condition in which mobility decreases, and it is known as a risk factor for elderly persons needing care in connection with sarcopenia and frailty. Prevention or delay of the onset of these diseases is important for preventing the need for care, and identification of biomarkers as indicators for appropriate intervention is useful. The present study aimed to clarify whether the serum insulin-like growth factor 1 (IGF-1) level, which has been reported to be related to sarcopenia and frailty, is related to LS. Methods The study participants were 133 elderly people living in a rural area in Japan. LS was assessed using Locomo-25, which is a self-administered questionnaire, and LS was defined as a Locomo-25 score ≥ 7 points. Serum IGF-1 and albumin levels were measured. A self-completed medical history questionnaire was used. Results On multiple linear regression analysis, age, IGF-1, osteoporosis, and osteoarthritis were significantly associated with the Locomo-25 score. The receiver-operating characteristic curve analysis of the IGF-1 level showed a threshold value of 82.0 ng/mL for discriminating non-LS and LS. The logistic regression analysis adjusted for osteoporosis, osteoarthritis, and the propensity score estimated from sex, age, and BMI showed that the odds ratio (OR) of the IGF-1 level for LS was 1.019 (95% confidence interval [CI], 1.002–1.039; p = 0.027), and the OR of IGF-1 ≤ 82 ng/mL for LS was 2.275 (95% CI 0.993–5.324; p = 0.052). Conclusions The present findings suggest that osteoporosis and osteoarthritis were associated with early LS, and a decrease of the serum IGF-1 level was a significant independent factor for early LS.
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Affiliation(s)
- Misa Nakamura
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan. .,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan.
| | - Masakazu Imaoka
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan
| | - Hidetoshi Nakao
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan
| | - Mitsumasa Hida
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan
| | - Fumie Tazaki
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan
| | - Ryota Imai
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Mizuma, 1558, Kaizuka City, Osaka, 597-0104, Japan
| | - Hiroshi Hashizume
- Department of Orthopaedic Surgery, Wakayama Medical University, Kimiidera 811-1, Wakayama City, Wakayama, 641-8510, Japan.,School of Health and Nursing Science, Wakayama Medical University, Mikazura 580, Wakayama City, Wakayama, 640-0011, Japan
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22
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Yuan W, Song C. Crosstalk between bone and other organs. MEDICAL REVIEW (BERLIN, GERMANY) 2022; 2:331-348. [PMID: 37724328 PMCID: PMC10471111 DOI: 10.1515/mr-2022-0018] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/06/2022] [Indexed: 09/20/2023]
Abstract
Bone has long been considered as a silent organ that provides a reservoir of calcium and phosphorus, traditionally. Recently, further study of bone has revealed additional functions as an endocrine organ connecting systemic organs of the whole body. Communication between bone and other organs participates in most physiological and pathological events and is responsible for the maintenance of homeostasis. Here, we present an overview of the crosstalk between bone and other organs. Furthermore, we describe the factors mediating the crosstalk and review the mechanisms in the development of potential associated diseases. These connections shed new light on the pathogenesis of systemic diseases and provide novel potential targets for the treatment of systemic diseases.
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Affiliation(s)
- Wanqiong Yuan
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Disease, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
| | - Chunli Song
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Spinal Disease, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
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23
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Cawthon PM, Peters KE, Cummings SR, Orwoll ES, Hoffman AR, Ensrud KE, Cauley JA, Evans WJ. Association Between Muscle Mass Determined by D 3 -Creatine Dilution and Incident Fractures in a Prospective Cohort Study of Older Men. J Bone Miner Res 2022; 37:1213-1220. [PMID: 35253257 PMCID: PMC9283198 DOI: 10.1002/jbmr.4505] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 12/10/2021] [Accepted: 01/12/2022] [Indexed: 11/05/2022]
Abstract
The relation between a novel measure of total skeletal muscle mass (assessed by D3 -creatine dilution [D3 Cr]) and incident fracture is unknown. In 1363 men (mean age 84.2 years), we determined D3 Cr muscle mass; Fracture Risk Assessment Tool (FRAX) 10-year probability of hip and major osteoporotic (hip, humerus, vertebral, forearm) fracture; and femoral neck bone mineral density (BMD) (by dual-energy X-ray absorptiometry [DXA]). Incident fractures were centrally adjudicated by review of radiology reports over 4.6 years. Correlations adjusted for weight and height were calculated between femoral neck BMD and D3 Cr muscle mass. Across quartiles of D3 Cr muscle mass/weight, proportional hazards models calculated hazard ratios (HRs) for any (n = 180); nonspine (n = 153); major osteoporotic fracture (n = 85); and hip fracture (n = 40) after adjustment for age, femoral neck BMD, recurrent fall history, and FRAX probability. Models were then adjusted to evaluate the mediating influence of physical performance (walking speed, chair stands, and grip strength). D3 Cr muscle mass was weakly correlated with femoral BMD (r = 0.10, p < 0.001). Compared to men in the highest quartile, those in the lowest quartile of D3 Cr muscle mass/weight had an increased risk of any clinical fracture (HR 1.8; 95% confidence interval [CI], 1.1-2.8); nonspine fracture (HR 1.8; 95% CI, 1.1-3.0), major osteoporotic fracture (HR 2.3; 95% CI, 1.2-4.6), and hip fracture (HR 5.9; 95% CI, 1.6-21.1). Results were attenuated after adjustment for physical performance, but associations remained borderline significant for hip and major osteoporotic fractures (p ≥ 0.05 to 0.10). Low D3 Cr muscle mass/weight is associated with a markedly high risk of hip and potentially other fractures in older men; this association is partially mediated by physical performance. © 2022 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Peggy M Cawthon
- Research Institute, California Pacific Medical Center, San Francisco, CA, USA.,Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Katherine E Peters
- Research Institute, California Pacific Medical Center, San Francisco, CA, USA
| | - Steven R Cummings
- Research Institute, California Pacific Medical Center, San Francisco, CA, USA.,Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Eric S Orwoll
- Department of Medicine, Oregon Health and Science University, Portland, OR, USA
| | | | - Kristine E Ensrud
- Center for Care Delivery and Outcomes Research, Minneapolis VA Health Care System, Minneapolis, MN, USA.,Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA.,Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Jane A Cauley
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - William J Evans
- Nutritional Sciences & Toxicology, University of California, Berkeley, CA, USA.,Department of Medicine, Duke University, Durham, NC, USA
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24
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Kim BJ. Effects of Muscles on Bone Metabolism—with a Focus on Myokines. Ann Geriatr Med Res 2022; 26:63-71. [PMID: 35722780 PMCID: PMC9271391 DOI: 10.4235/agmr.22.0054] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
Skeletal muscles and bones, the largest tissues in the body of a non-obese person, comprise the musculoskeletal system, which allows mobility and protects internal organs. Although muscles and bones are closely related throughout life, observations during development and aging and in human and animal disuse models have revealed the synchronization of tissue mass such that muscle phenotype changes precede alterations in bone mineral density and strength. This review discussed that mechanical forces, which have been the traditional research focus, are not the only mechanism by which muscle-derived signals may affect bone metabolism and emphasized the significance of skeletal muscles as an endocrine organ that secretes bone-regulatory factors. Consequently, both mechanical and biochemical aspects should be considered to fully understand muscle–bone crosstalk. This review also suggested that specific myokines could be ideal therapeutic targets for osteoporosis to both increase bone formation and reduce bone resorption; moreover, these myokines could also be potential circulating biomarkers to predict musculoskeletal health.
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Affiliation(s)
- Beom-Jun Kim
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Corresponding Authors: Beom-Jun Kim, MD, PhD Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea E-mail:
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25
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Jack RA, Lambert BS, Hedt CA, Delgado D, Goble H, McCulloch PC. Blood Flow Restriction Therapy Preserves Lower Extremity Bone and Muscle Mass After ACL Reconstruction. Sports Health 2022; 15:361-371. [PMID: 35762124 PMCID: PMC10170230 DOI: 10.1177/19417381221101006] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Muscle atrophy is common after an injury to the knee and anterior cruciate ligament reconstruction (ACLR). Blood flow restriction therapy (BFR) combined with low-load resistance exercise may help mitigate muscle loss and improve the overall condition of the lower extremity (LE). PURPOSE To determine whether BFR decreases the loss of LE lean mass (LM), bone mass, and bone mineral density (BMD) while improving function compared with standard rehabilitation after ACLR. STUDY DESIGN Randomized controlled clinical trial. METHODS A total of 32 patients undergoing ACLR with bone-patellar tendon-bone autograft were randomized into 2 groups (CONTROL: N = 15 [male = 7, female = 8; age = 24.1 ± 7.2 years; body mass index [BMI] = 26.9 ± 5.3 kg/m2] and BFR: N = 17 [male = 12, female = 5; age = 28.1 ± 7.4 years; BMI = 25.2 ± 2.8 kg/m2]) and performed 12 weeks of postsurgery rehabilitation with an average follow-up of 2.3 ± 1.0 years. Both groups performed the same rehabilitation protocol. During select exercises, the BFR group exercised under 80% arterial occlusion of the postoperative limb (Delfi tourniquet system). BMD, bone mass, and LM were measured using DEXA (iDXA, GE) at presurgery, week 6, and week 12 of rehabilitation. Functional measures were recorded at week 8 and week 12. Return to sport (RTS) was defined as the timepoint at which ACLR-specific objective functional testing was passed at physical therapy. A group-by-time analysis of covariance followed by a Tukey's post hoc test were used to detect within- and between-group changes. Type I error; α = 0.05. RESULTS Compared with presurgery, only the CONTROL group experienced decreases in LE-LM at week 6 (-0.61 ± 0.19 kg, -6.64 ± 1.86%; P < 0.01) and week 12 (-0.39 ± 0.15 kg, -4.67 ± 1.58%; P = 0.01) of rehabilitation. LE bone mass was decreased only in the CONTROL group at week 6 (-12.87 ± 3.02 g, -2.11 ± 0.47%; P < 0.01) and week 12 (-16.95 ± 4.32 g,-2.58 ± 0.64%; P < 0.01). Overall, loss of site-specific BMD was greater in the CONTROL group (P < 0.05). Only the CONTROL group experienced reductions in proximal tibia (-8.00 ± 1.10%; P < 0.01) and proximal fibula (-15.0±2.50%,P < 0.01) at week 12 compared with presurgery measures. There were no complications. Functional measures were similar between groups. RTS time was reduced in the BFR group (6.4 ± 0.3 months) compared with the CONTROL group (8.3 ± 0.5 months; P = 0.01). CONCLUSION After ACLR, BFR may decrease muscle and bone loss for up to 12 weeks postoperatively and may improve time to RTS with functional outcomes comparable with those of standard rehabilitation.
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Affiliation(s)
- Robert A Jack
- Orthopedic Biomechanics Research Laboratory, Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, Texas
| | - Bradley S Lambert
- Orthopedic Biomechanics Research Laboratory, Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, Texas
| | - Corbin A Hedt
- Orthopedic Biomechanics Research Laboratory, Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, Texas
| | - Domenica Delgado
- Orthopedic Biomechanics Research Laboratory, Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, Texas
| | - Haley Goble
- Orthopedic Biomechanics Research Laboratory, Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, Texas
| | - Patrick C McCulloch
- Orthopedic Biomechanics Research Laboratory, Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, Texas
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26
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Saedi AA, Wang Z, Shah A, Brotto M, Duque G. Comparative Analysis of Fat Composition in Marrow, Serum, and Muscle from Aging C57BL6 mice. Mech Ageing Dev 2022; 206:111690. [PMID: 35752298 DOI: 10.1016/j.mad.2022.111690] [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: 04/05/2022] [Revised: 06/08/2022] [Accepted: 06/21/2022] [Indexed: 10/17/2022]
Abstract
Osteosarcopenia is an age-related condition characterized by fragile bone and low muscle mass and function. Fat infiltration concomitantly contributes to age-related bone and muscle decline. Fat-secreted factors could be locally secreted in the muscle and bone marrow milieu affecting cell function and survival. However, the specific fat-related secretory factors that may simultaneously affect those tissues remain unknown. Using targeted-lipidomics approach, we comprehensively quantified fat composition (lipid mediators [LMs]) in bone marrow flush, gastrocnemius and serum obtained from 6-, 24- and 42-week-old C57BL6 mice. Compared to young mice (6wks), all tissues in older mice showed significantly higher levels of arachidonic acid (AA) and AA-derived eicosanoids, PGA 2, TXB 2, and 11,12-EET, which are known to affect muscle and bone function. Moreover, Lipoxin B4, another AA product and an enhancer of bone turnover and negative regulator for muscle, showed significantly lower values in older mice compared to young mice in both genders. Furthermore, eicosapentaenoic acid and docosahexaenoic acid autoxidation products (20-HDoHE, 11-HDoHE, 7-HDoHE and 4-HDoHE), and omega-3 fatty acids that negatively regulate bone and muscle health, were significantly higher in older mice. In conclusion, these results suggest that LMs could play a role in modulating musculoskeletal function during aging.
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Affiliation(s)
- Ahmed Al Saedi
- Australian Institute for Musculoskeletal Science (AIMSS), Geroscience & Osteosarcopenia Research Program, The University of Melbourne and Western Health, St. Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, St. Albans, VIC, Australia
| | - Zhiying Wang
- Bone-Muscle Research Center, College of Nursing and Health Innovation, The University of Texas-Arlington, Arlington, TX 76019, USA
| | - Anup Shah
- Monash Bioinformatics Platform and Monash Proteomics & Metabolomics Facility, Monash University, Clayton, VIC, Australia
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing and Health Innovation, The University of Texas-Arlington, Arlington, TX 76019, USA
| | - Gustavo Duque
- Australian Institute for Musculoskeletal Science (AIMSS), Geroscience & Osteosarcopenia Research Program, The University of Melbourne and Western Health, St. Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, St. Albans, VIC, Australia.
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27
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Dunn A, Haas G, Madsen J, Ziemkiewicz N, Au J, Johnson D, West C, Chauvin H, Gagyi SM, Garg K. Biomimetic sponges improve functional muscle recovery following composite trauma. J Orthop Res 2022; 40:1039-1052. [PMID: 34289186 PMCID: PMC8776909 DOI: 10.1002/jor.25143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/02/2021] [Accepted: 06/24/2021] [Indexed: 02/04/2023]
Abstract
There is a dearth of therapies that are safe and effective for the treatment of volumetric muscle loss (VML), defined as the surgical or traumatic loss of muscle tissue, resulting in functional impairment. To address this gap in orthopedic care, we developed a porous sponge-like scaffold composed of extracellular matrix (ECM) proteins (e.g., gelatin, collagen, and laminin-111) and an immunosuppressant drug, FK-506. While the majority of VML injuries occur in orthopedic trauma cases, preclinical models typically study muscle injuries in isolation without a concomitant bone fracture. The goal of this study was to investigate the extent to which FK506 loaded biomimetic sponges support functional muscle regeneration and fracture healing in a composite trauma model involving VML injury to the tibialis anterior muscle and osteotomy (OST) to the tibia. In this model, implantation of the FK-506 loaded biomimetic sponges limited the extent of inflammation while increasing the total number of myofibers, mean myofiber cross-sectional area, myosin-to-collagen ratio, and peak isometric torque compared to untreated VML+OST muscles on Day 28. Although all tibia fractures were bridged by Day 28 post-injury, fracture healing was impaired in response to an adjacent VML injury. Sponge treatment increased bone callus volume, yet the bridged mineralized bone volume was not significantly different. Taken together, these results suggest that biomimetic sponges primarily benefitted muscle repair and may provide a promising therapy for traumatized muscle.
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Affiliation(s)
- Andrew Dunn
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | - Gabriel Haas
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | - Joshua Madsen
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | - Natalia Ziemkiewicz
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | - Jeffrey Au
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | - David Johnson
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | - Charles West
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | - Hannah Chauvin
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University
| | | | - Koyal Garg
- Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, Saint Louis University,Address correspondence to: Koyal Garg, PhD, Assistant Professor, Department of Biomedical Engineering, Parks College of Engineering, Aviation, and Technology, 3507 Lindell Blvd, St. Louis, MO 63103, Phone: 314.977.1434,
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28
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Dissociation of Bone Resorption and Formation in Spaceflight and Simulated Microgravity: Potential Role of Myokines and Osteokines? Biomedicines 2022; 10:biomedicines10020342. [PMID: 35203551 PMCID: PMC8961781 DOI: 10.3390/biomedicines10020342] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/16/2022] Open
Abstract
The dissociation of bone formation and resorption is an important physiological process during spaceflight. It also occurs during local skeletal unloading or immobilization, such as in people with neuromuscular disorders or those who are on bed rest. Under these conditions, the physiological systems of the human body are perturbed down to the cellular level. Through the absence of mechanical stimuli, the musculoskeletal system and, predominantly, the postural skeletal muscles are largely affected. Despite in-flight exercise countermeasures, muscle wasting and bone loss occur, which are associated with spaceflight duration. Nevertheless, countermeasures can be effective, especially by preventing muscle wasting to rescue both postural and dynamic as well as muscle performance. Thus far, it is largely unknown how changes in bone microarchitecture evolve over the long term in the absence of a gravity vector and whether bone loss incurred in space or following the return to the Earth fully recovers or partly persists. In this review, we highlight the different mechanisms and factors that regulate the humoral crosstalk between the muscle and the bone. Further we focus on the interplay between currently known myokines and osteokines and their mutual regulation.
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29
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Hedt C, McCulloch PC, Harris JD, Lambert BS. Blood Flow Restriction Enhances Rehabilitation and Return to Sport: The Paradox of Proximal Performance. Arthrosc Sports Med Rehabil 2022; 4:e51-e63. [PMID: 35141536 PMCID: PMC8811501 DOI: 10.1016/j.asmr.2021.09.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/15/2021] [Indexed: 12/17/2022] Open
Abstract
The use of blood flow restriction (BFR) within rehabilitation is rapidly increasing as further research is performed elucidating purported benefits such as improved muscular strength and size, neuromuscular control, decreased pain, and increased bone mineral density. Interestingly, these benefits are not isolated to structures distal to the occlusive stimulus. Proximal gains are of high interest to rehabilitation professionals, especially those working with patients who are limited due to pain or postsurgical precautions. The review to follow will focus on current evidence and ongoing hypotheses regarding physiologic responses to BFR, current clinical applications, proximal responses to BFR training, potential practical applications for rehabilitation and injury prevention, and directions for future research. Interestingly, benefits have been found in musculature proximal to the occlusive stimulus, which may lend promise to a greater variety of patient populations and conditions. Furthermore, an increasing demand for BFR use in the sports world warrants further research for performance research and recovery. LEVEL OF EVIDENCE Level V, expert opinion.
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Affiliation(s)
- Corbin Hedt
- Houston Methodist Orthopedics & Sports Medicine, Houston, Texas, U.S.A
| | | | - Joshua D. Harris
- Houston Methodist Orthopedics & Sports Medicine, Houston, Texas, U.S.A
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30
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Wei Z, Ge F, Che Y, Wu S, Dong X, Song D. Metabolomics Coupled with Pathway Analysis Provides Insights into Sarco-Osteoporosis Metabolic Alterations and Estrogen Therapeutic Effects in Mice. Biomolecules 2021; 12:41. [PMID: 35053189 PMCID: PMC8773875 DOI: 10.3390/biom12010041] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 12/15/2022] Open
Abstract
Postmenopausal osteoporosis (PMOP) and sarcopenia are common diseases that predominantly affect postmenopausal women. In the occurrence and development of these two diseases, they are potentially pathologically connected with each other at various molecular levels. However, the application of metabolomics in sarco-osteoporosis and the metabolic rewiring happening throughout the estrogen loss-replenish process have not been reported. To investigate the metabolic alteration of sarco-osteoporosis and the possible therapeutical effects of estradiol, 24 mice were randomly divided into sham surgery, ovariectomy (OVX), and estradiol-treated groups. Three-dimensional reconstructions and histopathology examination showed significant bone loss after ovariectomy. Estrogen can well protect against OVX-induced bone loss deterioration. UHPLC-Q-TOF/MS was preformed to profile semi- polar metabolites of skeletal muscle samples from all groups. Metabolomics analysis revealed metabolic rewiring occurred in OVX group, most of which can be reversed by estrogen supplementation. In total, 65 differential metabolites were identified, and pathway analysis revealed that sarco-osteoporosis was related to the alterations in purine metabolism, glycerophospholipid metabolism, arginine biosynthesis, tryptophan metabolism, histidine metabolism, oxidative phosphorylation, and thermogenesis, which provided possible explanations for the metabolic mechanism of sarco-osteoporosis. This study indicates that an UHPLC-Q-TOF/MS-based metabolomics approach can elucidate the metabolic reprogramming mechanisms of sarco-osteoporosis and provide biological evidence of the therapeutical effects of estrogen on sarco-osteoporosis.
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Affiliation(s)
- Ziheng Wei
- Department of Orthopedics, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201620, China;
| | - Fei Ge
- School of Medicine, Shanghai University, Shanghai 200444, China; (F.G.); (Y.C.)
- College of Sciences, Shanghai University, Shanghai 200444, China
| | - Yanting Che
- School of Medicine, Shanghai University, Shanghai 200444, China; (F.G.); (Y.C.)
- College of Sciences, Shanghai University, Shanghai 200444, China
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
| | - Si Wu
- Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Xin Dong
- School of Medicine, Shanghai University, Shanghai 200444, China; (F.G.); (Y.C.)
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
| | - Dianwen Song
- Department of Orthopedics, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201620, China;
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Lee DY, Shin S. Association of Sarcopenia with Osteopenia and Osteoporosis in Community-Dwelling Older Korean Adults: A Cross-Sectional Study. J Clin Med 2021; 11:129. [PMID: 35011870 PMCID: PMC8745168 DOI: 10.3390/jcm11010129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/15/2021] [Accepted: 12/24/2021] [Indexed: 12/26/2022] Open
Abstract
Sarcopenia and bone disorders, such as osteopenia and osteoporosis, are common musculoskeletal disorders in older adults. Therefore, this study aimed to establish the association between sarcopenia and bone disorders such as osteoporosis and osteopenia according to sex. We analyzed 3077 participants from the 2008-2011 Korean National Health and Nutrition Examination Survey aged 65 years or older. After adjusting for all covariates, such as physical examinations, exercise, and nutrient intake (model 4), the odds ratios for the association between sarcopenia and bone disorders were 2.051 (95% confidence interval [CI]: 1.498-2.808) in osteopenia and 2.258 (95% CI: 1.584-3.218) in osteoporosis. However, when sex was analyzed separately, the odds ratio was significantly different in men (osteopenia-2.068, 95% CI: 1.462-2.924; osteoporosis-3.247, 95% CI: 1.953-5.399), but not in women. Therefore, the results of this study show an association between sarcopenia and bone disorders in older Korean adults. Sarcopenia is significantly related to osteopenia and osteoporosis, especially in men, when stratified by sex.
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Affiliation(s)
- Do-Youn Lee
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan-si 38541, Gyungbuk, Korea;
- Neuromuscular Control Laboratory, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk, Korea
| | - Sunghoon Shin
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan-si 38541, Gyungbuk, Korea;
- Neuromuscular Control Laboratory, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk, Korea
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Association between Body Composition and Bone Mineral Density in Children and Adolescents: A Systematic Review and Meta-Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182212126. [PMID: 34831882 PMCID: PMC8618958 DOI: 10.3390/ijerph182212126] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/16/2021] [Indexed: 11/16/2022]
Abstract
Background: Bone mass acquisition during growth is a major determinant of the risk of developing osteoporosis later in life. Body composition is an anthropometric determinant of bone mineral density (BMD) and significantly influences its development during childhood and adolescence. Objective: This study aimed to systematically examine the association between body composition and bone mineral density in children and adolescents. Methods: Observational studies addressing this association were identified from PubMed (MEDLINE), Embase, Scopus and the Cochrane Library (up to January 2021). The study populations consisted of healthy children and adolescents. The DerSimonian and Laird method was used to compute pooled estimates of effect size and the respective 95% confidence intervals for upper limbs, femoral neck (FN), lumbar spine (LS) and total body, respectively. Subgroup analyses were further performed based on age, sex and ethnicity. Results: Thirty-one published studies were eligible for inclusion in this systematic review and meta-analysis, including three longitudinal studies. The combined population from all the studies amounted to 21,393 (11,205 males and 10,188 females). The pooled estimates of the correlation coefficients for lean mass (LM) and BMD ranged from 0.53 to 0.74 (p < 0.050), and the pooled regression coefficients ranged from 0.23 to 0.79 for FN, LS and total body (p < 0.050). For fat mass (FM), the pooled correlation coefficients ranged from 0.10 to 0.50 (p < 0.050) and the pooled regression coefficient was only significant for FN BMD with a weak strength (pooled β = 0.07, p < 0.050). The pooled regression coefficients for body fat percentage (BF%) were between −0.54 and −0.04 (p < 0.050). The subgroup analysis revealed a stronger association in Asians than in Caucasians for LM and in males compared to females for BF% (p < 0.050). Conclusions: This systematic review and meta-analysis supports a positive association between LM and BMD. BF% appears to have a deleterious effect on bone acquisition in children and adolescents.
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Mesenchymal Stem Cell Transplantation for the Treatment of Age-Related Musculoskeletal Frailty. Int J Mol Sci 2021; 22:ijms221910542. [PMID: 34638883 PMCID: PMC8508885 DOI: 10.3390/ijms221910542] [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: 08/19/2021] [Revised: 09/16/2021] [Accepted: 09/24/2021] [Indexed: 12/16/2022] Open
Abstract
Projected life expectancy continues to grow worldwide owing to the advancement of new treatments and technologies leading to rapid growth of geriatric population. Thus, age-associated diseases especially in the musculoskeletal system are becoming more common. Loss of bone (osteoporosis) and muscle (sarcopenia) mass are conditions whose prevalence is increasing because of the change in population distribution in the world towards an older mean age. The deterioration in the bone and muscle functions can cause severe disability and seriously affects the patients’ quality of life. Currently, there is no treatment to prevent and reverse age-related musculoskeletal frailty. Existing interventions are mainly to slow down and control the signs and symptoms. Mesenchymal stem cell (MSC) transplantation is a promising approach to attenuate age-related musculoskeletal frailty. This review compiles the present knowledge of the causes and changes of the musculoskeletal frailty and the potential of MSC transplantation as a regenerative therapy for age-related musculoskeletal frailty.
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Speacht TL, Lang CH, Donahue HJ. Soluble RANKL exaggerates hindlimb suspension-induced osteopenia but not muscle protein balance. J Orthop Res 2021; 39:1860-1869. [PMID: 33222219 PMCID: PMC8140066 DOI: 10.1002/jor.24917] [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: 08/17/2020] [Revised: 11/02/2020] [Accepted: 11/19/2020] [Indexed: 02/04/2023]
Abstract
We examined the hypothesis that exaggerating unloading-induced bone loss using a combination of hindlimb suspension (HLS) and exogenous injections of receptor activator of nuclear factor-κB ligand (RANKL) also exaggerates gastrocnemius and quadriceps muscle loss. Forty, male C57Bl/6J mice (16 weeks) were subjected to HLS or normal ambulation (ground control, GC) for 14 days. Mice received three intraperitoneal injections of either human recombinant soluble RANKL or phosphate-buffered saline as control (n = 10/group) at 24 h intervals starting on Day 1 of HLS. GC + RANKL and HLS mice exhibited similar decreases in trabecular bone volume and density in both proximal tibias and distal femurs. However, RANKL affected trabecular number, separation, and connectivity density, while HLS decreased trabecular thickness. The combination of RANKL and HLS exacerbated these changes. Similarly, GC + RANKL and HLS mice saw comparable decreases in cortical bone volume, thickness, and strength in femur midshafts, and combination treatment exacerbated these changes. Plasma concentrations of P1NP were increased in both groups receiving RANKL, while CTX concentrations were unchanged. HLS decreased gastrocnemius weight and was associated with a reduction in global protein synthesis, and no change in proteasome activity. This change was correlated with a decrease in S6K1 and S6 phosphorylation, but no change in 4E-BP1 phosphorylation. Injection of RANKL did not alter gastrocnemius or quadriceps muscle protein metabolism in GC or HLS mice. Our results suggest that injection of soluble RANKL exacerbates unloading-induced bone loss, but not unloading-induced gastrocnemius or quadriceps muscle loss.
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Affiliation(s)
- Toni L. Speacht
- Department of Orthopaedics and Rehabilitation, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
| | - Charles H. Lang
- Department of Cellular and Molecular Physiology, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
| | - Henry J. Donahue
- Department of Orthopaedics and Rehabilitation, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA,Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
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Influences of the IL-6 cytokine family on bone structure and function. Cytokine 2021; 146:155655. [PMID: 34332274 DOI: 10.1016/j.cyto.2021.155655] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 01/12/2023]
Abstract
The IL-6 family of cytokines comprises a large group of cytokines that all act via the formation of a signaling complex that includes the glycoprotein 130 (gp130) receptor. Despite this, many of these cytokines have unique roles that regulate the activity of bone forming osteoblasts, bone resorbing osteoclasts, bone-resident osteocytes, and cartilage cells (chondrocytes). These include specific functions in craniofacial development, longitudinal bone growth, and the maintenance of trabecular and cortical bone structure, and have been implicated in musculoskeletal pathologies such as craniosynostosis, osteoporosis, rheumatoid arthritis, osteoarthritis, and heterotopic ossifications. This review will work systematically through each member of this family and provide an overview and an update on the expression patterns and functions of each of these cytokines in the skeleton, as well as their negative feedback pathways, particularly suppressor of cytokine signaling 3 (SOCS3). The specific cytokines described are interleukin 6 (IL-6), interleukin 11 (IL-11), oncostatin M (OSM), leukemia inhibitory factor (LIF), cardiotrophin 1 (CT-1), ciliary neurotrophic factor (CNTF), cardiotrophin-like cytokine factor 1 (CLCF1), neuropoietin, humanin and interleukin 27 (IL-27).
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Jürimäe J, Karvelyte V, Remmel L, Tamm AL, Purge P, Gruodyte-Raciene R, Kamandulis S, Maasalu K, Gracia-Marco L, Tillmann V. Serum sclerostin concentration is associated with specific adipose, muscle and bone tissue markers in lean adolescent females with increased physical activity. J Pediatr Endocrinol Metab 2021; 34:755-761. [PMID: 33851796 DOI: 10.1515/jpem-2020-0662] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 02/12/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Sclerostin is an important regulator of bone mass involving the Wnt/β-catenin signalling pathway. Relatively few studies have investigated the relationships of circulating sclerostin levels with adiposity-related and muscle-related biochemical factors in individuals with increased energy metabolism. The aim of this study was to investigate the associations of circulating sclerostin with adipokines, myokines, osteokines and body composition values in lean adolescent females with increased physical activity. METHODS A total of 73 adolescent females who were physically active and aged 14-18 years old participated in the study. Sclerostin, leptin, resistin, tumour necrosis factor (TNF)-α, interleukin (IL)-6, irisin, osteocalcin, C-terminal telopeptide of type I collagen (CTx), insulin-like growth factor (IGF)-1 and insulin were obtained from fasting blood samples. Body composition was measured by dual-energy X-ray absorptiometry (DXA) and analyzed for body fat mass, lean body mass, bone mineral content and muscle mass. RESULTS Serum sclerostin (117.9 ± 60.3 pg/mL) was correlated with age, age at menarche, body fat, muscle mass, training activity, leptin, TNF-α, irisin, osteocalcin, CTx and IGF-1. Multivariate linear regression analysis demonstrated that fat mass (β = 0.434; p = 0.001), leptin (β = -0.308; p = 0.015), irisin (β = 0.227; p = 0.024) and CTx (β = 0.290; p = 0.031) were the most important predictors of serum sclerostin concentration. CONCLUSIONS Bone-derived sclerostin is associated with specific adipokine, myokine and osteokine values in lean adolescent females with increased physical activity. These results suggest that the interactions between bone, adipose and muscle tissues could also be associated with circulating sclerostin concentrations.
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Affiliation(s)
- Jaak Jürimäe
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | | | - Liina Remmel
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | | | - Priit Purge
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | | | | | - Katre Maasalu
- Institute of Clinical Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Luis Gracia-Marco
- PROFITH (PROmoting FITness and Health through physical activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Vallo Tillmann
- Institute of Clinical Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
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Tamolienė V, Remmel L, Gruodyte-Raciene R, Jürimäe J. Relationships of Bone Mineral Variables with Body Composition, Blood Hormones and Training Volume in Adolescent Female Athletes with Different Loading Patterns. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18126571. [PMID: 34207239 PMCID: PMC8296434 DOI: 10.3390/ijerph18126571] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/15/2021] [Accepted: 06/15/2021] [Indexed: 12/24/2022]
Abstract
The aim of this investigation was to determine the relationships of areal bone mineral density (aBMD) and content (BMC) with body composition, blood hormone and training load variables in adolescent female athletes with different loading patterns. The participants were 73 healthy adolescent females (14–18 years), who were divided into three groups: rhythmic gymnasts (RG; n = 33), swimmers (SW; n = 20) and untrained controls (UC; n = 20). Bone mineral and body compositional variables were measured by dual-energy X-ray absorptiometry, and insulin-like growth factor-1 (IGF-1), estradiol and leptin were analyzed from blood samples. In addition, aerobic performance was assessed by a peak oxygen consumption test. No differences (p > 0.05) in weekly training volume were observed between rhythmic gymnasts (17.6 ± 5.3 h/week) and swimmers (16.1 ± 6.9 h/week). Measured areal bone mineral density and bone mineral content values were higher in rhythmic gymnasts compared with other groups (p < 0.05), while no differences (p > 0.05) in measured bone mineral values were seen between swimmers and untrained control groups. Multiple regression models indicated that IGF-1 alone explained 14% of the total variance (R2 × 100) in lumbar spine aBMD, while appendicular muscle mass and training volume together explained 37% of the total variance in femoral neck BMC in the rhythmic gymnast group only. In swimmers, age at menarche, estradiol and appendicular muscle mass together explained 68% of the total variance in lumbar spine BMC, while appendicular muscle mass was the only predictor and explained 19 to 53% of the total variance in measured bone mineral values in untrained controls. In conclusion, adolescent rhythmic gymnasts with specific weight-bearing athletic activity present higher areal bone mineral values in comparison with swimmers and untrained controls. Specific training volume together with appendicular muscle mass influenced cortical bone development at the femoral neck site of the skeleton in rhythmic gymnasts, while hormonal values influenced trabecular bone development at the lumbar spine site in both athletic groups with different loading patterns.
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Affiliation(s)
- Vita Tamolienė
- Institute of Sports Science and Innovations, Lithuanian Sports University, LT-44221 Kaunas, Lithuania;
| | - Liina Remmel
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, 50090 Tartu, Estonia;
| | - Rita Gruodyte-Raciene
- Department of Physical and Social Education, Lithuanian Sports University, LT-44221 Kaunas, Lithuania;
| | - Jaak Jürimäe
- Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, 50090 Tartu, Estonia;
- Correspondence:
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Moriwaki K, Matsumoto H, Tanimura C, Osaki M, Nagashima H, Hagino H. Urinary pentosidine level is associated with grip strength and gait speed in community-dwelling adults: a cross-sectional study. BMC Musculoskelet Disord 2021; 22:392. [PMID: 33902533 PMCID: PMC8077690 DOI: 10.1186/s12891-021-04279-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 04/20/2021] [Indexed: 01/22/2023] Open
Abstract
Background Muscle and bone interactions might be associated with osteoporosis and sarcopenia. Urinary pentosidine and serum 25-hydroxyvitamin D (25(OH)D) might affect muscle and bone interactions. It is unclear whether these biomarkers are affected by age and sex or play a role in muscle and physical functions. We aimed to investigate the association between urinary pentosidine and serum 25(OH)D levels with muscle mass, muscle strength, and physical performance in community-dwelling adults. Methods Two-hundred and fifty-four middle-aged and elderly adults were enrolled. There was no significant difference in age between 97 men (75.0 ± 8.9 years) and 157 women (73.6 ± 8.1 years). The skeletal muscle mass index (SMI), grip strength, and gait speed were assessed. The urinary pentosidine level was measured. We evaluated the association of urinary pentosidine and serum 25(OH)D levels with age and sex (student’s t-test) and correlations between biomarker and each variable (Pearson’s correlation coefficients). Multiple regression analysis was performed with grip strength and gait speed as dependent variables and with age, height, weight, body mass index (BMI), speed of sound (SOS), SMI, glycated hemoglobin (HbA1c), estimated glomerular filtration rate (eGFR), 25(OH)D, and pentosidine as independent variables using the stepwise method. Results The urinary pentosidine level was negatively correlated with grip strength, gait speed, eGFR, and insulin-like growth factor-1 (IGF-1) in men and with SOS, grip strength, and gait speed in women. The serum 25(OH)D level was positively correlated with IGF-1 in women and grip strength in men. Grip strength was associated with age, height, and pentosidine in men and height and pentosidine in women. Gait speed was associated with age, BMI, and pentosidine in men and age, height, and pentosidine in women. Conclusion Urinary pentosidine levels are significantly associated with grip strength and gait speed and may serve as a biomarker of muscle and bone interactions.
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Affiliation(s)
- Kenta Moriwaki
- Department of Orthopedic Surgery, Faculty of Medicine, Tottori University, Nishicho 36-1, Yonago, Tottori, 683-8504, Japan. .,Department of Orthopedic Surgery, Misasa Onsen Hospital, Yamada 690Misasa, Tottori, 682-0122, Japan.
| | - Hiromi Matsumoto
- Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, Matsushima 288, Kurashiki, Okayama, 701-0193, Japan
| | - Chika Tanimura
- School of Health Science, Faculty of Medicine, Tottori University, Nishicho 86, Yonago, Tottori, 683-8504, Japan
| | - Mari Osaki
- Rehabilitation Division, Tottori University Hospital, Nishicho 36-1, Yonago, Tottori, 683-8504, Japan
| | - Hideki Nagashima
- Department of Orthopedic Surgery, Faculty of Medicine, Tottori University, Nishicho 36-1, Yonago, Tottori, 683-8504, Japan
| | - Hiroshi Hagino
- School of Health Science, Faculty of Medicine, Tottori University, Nishicho 86, Yonago, Tottori, 683-8504, Japan.,Rehabilitation Division, Tottori University Hospital, Nishicho 36-1, Yonago, Tottori, 683-8504, Japan
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Mulligan AA, Hayhoe RPG, Luben RN, Welch AA. Positive Associations of Dietary Intake and Plasma Concentrations of Vitamin E with Skeletal Muscle Mass, Heel Bone Ultrasound Attenuation and Fracture Risk in the EPIC-Norfolk Cohort. Antioxidants (Basel) 2021; 10:antiox10020159. [PMID: 33499166 PMCID: PMC7911901 DOI: 10.3390/antiox10020159] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/13/2021] [Accepted: 01/17/2021] [Indexed: 02/02/2023] Open
Abstract
The prevalence of sarcopenia, frailty and fractures is increasing. Prevention options are limited, but dietary factors including vitamin E have the potential to confer some protection. This study investigated cross-sectional associations between dietary and plasma concentrations of vitamin E with indices of skeletal muscle mass (SMM) (n = 14,179 and 4283, respectively) and bone density (n = 14,694 and 4457, respectively) and longitudinal fracture risk (n = 25,223 and 7291, respectively) in European Prospective Investigation Into Cancer and Nutrition (EPIC)-Norfolk participants, aged 39-79 years at baseline. Participants completed a health and lifestyle questionnaire, a 7-day diet diary (7dDD) and had anthropometric measurements taken. Fat-free mass (as a SMM proxy) was measured using bioimpedance and bone density was measured using calcaneal broadband ultrasound attenuation (BUA) and incident fractures over 18.5 years of follow-up. Associations between indices of SMM, BUA and fracture risk were investigated by quintiles of dietary vitamin E intake or plasma concentrations. Positive trends in SMM indices and BUA were apparent across dietary quintiles for both sexes, with interquintile differences of 0.88%-1.91% (p < 0.001), and protective trends for total and hip fracture risk. Circulating plasma α- and γ-tocopherol results matched the overall dietary findings. Dietary vitamin E may be important for musculoskeletal health but further investigation is required to fully understand the relationships of plasma tocopherols.
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Affiliation(s)
- Angela A. Mulligan
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridgeshire CB1 8RN, UK;
- NIHR BRC Diet, Anthropometry and Physical Activity Group, MRC Epidemiology Unit, University of Cambridge, Cambridgeshire CB2 0AH, UK
- Correspondence: or
| | - Richard P. G. Hayhoe
- Department of Epidemiology and Public Health, Norwich Medical School, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich NR4 7TJ, UK; (R.P.G.H.); (A.A.W.)
| | - Robert N. Luben
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridgeshire CB1 8RN, UK;
| | - Ailsa A. Welch
- Department of Epidemiology and Public Health, Norwich Medical School, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich NR4 7TJ, UK; (R.P.G.H.); (A.A.W.)
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Kwon O, Bae KJ, Gong HS, Kim J, Baek GH. Computed Tomography Evaluation of Forearm and Hand Muscles in Patients With Distal Radius Fracture. J Clin Densitom 2021; 24:88-93. [PMID: 31902545 DOI: 10.1016/j.jocd.2019.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/29/2019] [Accepted: 12/02/2019] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Computed tomography (CT) can be used to assess bone status with measurement of Hounsfield unit (HU). The objective of this study was to evaluate whether HU of muscle might be associated with parameters of bone and muscle status. METHODS We reviewed 71 women aged over 50 yr of age who had distal radius fracture and underwent CT evaluation of affected wrist. We assessed HUs of forearm flexor muscles (flexor digitorum superficialis) and thenar muscles and bone HUs at the capitate and the ulnar head. Other parameters included femur neck and lumbar bone mineral density (BMD), upper extremity lean mass, hand grip strength, and muscle fiber cross-sectional area. We performed correlation analyses to determine associations between variables. RESULTS Thenar and forearm muscle HUs were significantly correlated with each other, but not with other parameters. HUs of the capitate and ulnar head were positively correlated with femur neck and lumbar BMDs and inversely correlated with age. Ulnar head HU was positively correlated hand grip strength. CONCLUSIONS HUs of forearm and thenar muscles did not show significant correlations with bone or muscle parameters, although bone HUs correlated well with bone mineral densities. These results support the opportunistic use of CT for evaluating bone fragility. Clinical usefulness of muscle HU measurement needs further studies.
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Affiliation(s)
- Ohsang Kwon
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Kee Jeong Bae
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Hyun Sik Gong
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea.
| | - Jihyeung Kim
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Goo Hyun Baek
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea
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Youssef El Baradie KB, Hamrick MW. Therapeutic application of extracellular vesicles for musculoskeletal repair & regeneration. Connect Tissue Res 2021; 62:99-114. [PMID: 32602385 DOI: 10.1080/03008207.2020.1781102] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Traumatic musculoskeletal injuries are common in both the civilian and combat care settings. Significant barriers exist to repairing these injuries including fracture nonunion, muscle fibrosis, re-innervation, and compartment syndrome, as well as infection and inflammation. Recently, extracellular vesicles (EVs), including exosomes and microvesicles, have attracted attention in the field of musculoskeletal regeneration. These vesicles are released by different cell types and play a vital role in cell communication by delivering functional cargoes such as proteins and RNAs. Many of these cargo molecules can be utilized for repair purposes in skeletal disorders such as osteoporosis, osteogenesis imperfecta, sarcopenia, and fracture healing. There are, however, some challenges to overcome in order to advance the successful application of these vesicles in the therapeutic setting. These include large-scale production and isolation of exosomes, long-term storage, in vivo stability, and strategies for tissue-specific targeting and delivery. This paper reviews the general characteristics of exosomes along with their physiological roles and contribution to the pathogenesis of musculoskeletal diseases. We also highlight new findings on the use of synthetic exosomes to overcome the limitations of native exosomes in treating musculoskeletal injuries and disorders.
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Affiliation(s)
| | - Mark W Hamrick
- Medical College of Georgia, Augusta University , Augusta, GA, USA
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42
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Gertz ML, Chin CR, Tomoiaga D, MacKay M, Chang C, Butler D, Afshinnekoo E, Bezdan D, Schmidt MA, Mozsary C, Melnick A, Garrett-Bakelman F, Crucian B, Lee SMC, Zwart SR, Smith SM, Meydan C, Mason CE. Multi-omic, Single-Cell, and Biochemical Profiles of Astronauts Guide Pharmacological Strategies for Returning to Gravity. Cell Rep 2020; 33:108429. [PMID: 33242408 PMCID: PMC9444344 DOI: 10.1016/j.celrep.2020.108429] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/07/2020] [Accepted: 11/03/2020] [Indexed: 12/29/2022] Open
Abstract
The National Aeronautics and Space Administration (NASA) Twins Study created an integrative molecular profile of an astronaut during NASA’s first 1-year mission on the International Space Station (ISS) and included comparisons to an identical Earth-bound twin. The unique biochemical profiles observed when landing on Earth after such a long mission (e.g., spikes in interleukin-1 [IL-1]/6/10, c-reactive protein [CRP], C-C motif chemokine ligand 2 [CCL2], IL-1 receptor antagonist [IL-1ra], and tumor necrosis factor alpha [TNF-α]) opened new questions about the human body’s response to gravity and how to plan for future astronauts, particularly around initiation or resolution of inflammation. Here, single-cell, multi-omic (100-plex epitope profile and gene expression) profiling of peripheral blood mononuclear cells (PBMCs) showed changes to blood cell composition and gene expression post-flight, specifically for monocytes and dendritic cell precursors. These were consistent with flight-induced cytokine and immune system stress, followed by skeletal muscle regeneration in response to gravity. Finally, we examined these profiles relative to 6-month missions in 28 other astronauts and detail potential pharmacological interventions for returning to gravity in future missions. Gertz et al. present a re-analysis of the landing data from the NASA Twins Study, suggesting that the biochemical signature reflects muscle regeneration after atrophy rather than a detrimental inflammatory response. This is mediated through muscle-derived IL-6 anti-inflammatory cascades. Single-cell analysis supports this role. Potential pharmacological interventions are also discussed.
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Affiliation(s)
- Monica L Gertz
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; Interdisciplinary Program in Neuroscience, George Mason University, Fairfax, VA 22030, USA
| | - Christopher R Chin
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA
| | - Delia Tomoiaga
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA
| | - Matthew MacKay
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY 10065, USA; Becton Dickinson & Co., Washington, DC 20001
| | | | - Daniel Butler
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ebrahim Afshinnekoo
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY 10065, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Daniela Bezdan
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; Institute of Medical Virology and Epidemiology of Viral Diseases, University Hospital, Tübingen 72076, Germany
| | - Michael A Schmidt
- Advanced Pattern Analysis and Countermeasures Group, Boulder, CO 80302, USA; Sovaris Aerospace, Boulder, CO 80302, USA
| | - Christopher Mozsary
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ari Melnick
- Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Francine Garrett-Bakelman
- Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA; Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA; Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA; University of Virginia Cancer Center, Charlottesville, VA 22908, USA
| | - Brian Crucian
- Human Health and Performance Directorate, NASA Johnson Space Center, Houston, TX 77058, USA
| | | | - Sara R Zwart
- Department of Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Scott M Smith
- Human Health and Performance Directorate, NASA Johnson Space Center, Houston, TX 77058, USA
| | - Cem Meydan
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY 10065, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Christopher E Mason
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY 10065, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10021, USA; The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA.
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Aguilera-Saez J, Lopez-Masramon B, Collado JM, Monte-Soldado A, Rivas-Nicolls D, Serracanta J, Barret JP. Severely damaged lower limb salvage in a critically ill burned patient. Lessons learned. INTERNATIONAL JOURNAL OF BURNS AND TRAUMA 2020; 10:191-200. [PMID: 33224606 PMCID: PMC7675203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Lower limb salvage in severely injured burned patients with bone or tendon exposure may be a reconstructive challenge. In this cases, local or regional flaps and other more conservative therapies such as dermal substitutes and negative-pressure wound therapy are usually not available or are not good enough to solve the problem. In such situations, microsurgical reconstruction with distant flaps seems to be the best option, even though the particularities of the severe burn patient may decrease free flaps' success rate. We report the case of a patient with severe electrical injuries affecting 70% of the total body surface area who had full-thickness burns to the lower extremity with wide bone exposure and extensively drug-resistant Pseudomonas aeruginosa infection. We achieved limb salvation using rectus femoris muscle free flap plus lateral and medial gastrocnemius muscle flaps and soleus muscle flap, after two failed microsurgical coverture attempts and a long not useful periplus with conservative therapies such us negative-pressure wound therapy and dermal substitutes. After 3 years of follow-up, the patient can walk without aid, and he has recovered his social and employment situation prior to the accident.
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Affiliation(s)
- Jorge Aguilera-Saez
- Plastic Surgery Department and Burn Center, Vall d'Hebron Barcelona Hospital Campus Barcelona, Spain
| | - Bernat Lopez-Masramon
- Plastic Surgery Department and Burn Center, Vall d'Hebron Barcelona Hospital Campus Barcelona, Spain
| | - Jose M Collado
- Plastic Surgery Department and Burn Center, Vall d'Hebron Barcelona Hospital Campus Barcelona, Spain
| | - Alejandra Monte-Soldado
- Plastic Surgery Department and Burn Center, Vall d'Hebron Barcelona Hospital Campus Barcelona, Spain
| | - Danilo Rivas-Nicolls
- Plastic Surgery Department and Burn Center, Vall d'Hebron Barcelona Hospital Campus Barcelona, Spain
| | - Jordi Serracanta
- Plastic Surgery Department and Burn Center, Vall d'Hebron Barcelona Hospital Campus Barcelona, Spain
| | - Juan P Barret
- Plastic Surgery Department and Burn Center, Vall d'Hebron Barcelona Hospital Campus Barcelona, Spain
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Sullivan BP, Weiss JA, Nie Y, Garner RT, Drohan CJ, Kuang S, Stout J, Gavin TP. Skeletal muscle IGF-1 is lower at rest and after resistance exercise in humans with obesity. Eur J Appl Physiol 2020; 120:2835-2846. [DOI: 10.1007/s00421-020-04509-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 09/19/2020] [Indexed: 12/25/2022]
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Bay ML, Pedersen BK. Muscle-Organ Crosstalk: Focus on Immunometabolism. Front Physiol 2020; 11:567881. [PMID: 33013484 PMCID: PMC7509178 DOI: 10.3389/fphys.2020.567881] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 08/19/2020] [Indexed: 12/21/2022] Open
Abstract
Skeletal muscle secretes several hundred myokines that facilitate communication from muscle to other organs, such as, adipose tissue, pancreas, liver, gut, and brain. The biological roles of myokines include effects on e.g., memory and learning, as well as glucose and lipid metabolism. The present minireview focuses on recent developments showing that exercise-induced myokines are involved in immunometabolism of importance for the control of e.g., tumor growth and chronic inflammation. In this review, immunometabolism is discussed as the non-immune related pathologies leading to an immune response and some degree of inflammation, which promotes metabolic abnormalities.
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Affiliation(s)
- Marie Lund Bay
- Centre of Inflammation and Metabolism/Centre for Physical Activity Research (CIM/CFAS), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Bente Klarlund Pedersen
- Centre of Inflammation and Metabolism/Centre for Physical Activity Research (CIM/CFAS), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Montalcini T, Pujia A, Donini LM, Frittitta L, Galvano F, Natali A, Pironi L, Porrini M, Riso P, Rivellese AA, Russo D, Scapagnini G, Serafini M, Tagliabue A, De Lorenzo A. A Call to Action: Now Is the Time to Screen Elderly and Treat Osteosarcopenia, a Position Paper of the Italian College of Academic Nutritionists MED/49 (ICAN-49). Nutrients 2020; 12:E2662. [PMID: 32878316 PMCID: PMC7550989 DOI: 10.3390/nu12092662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/24/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023] Open
Abstract
Aging is a risk factor for the development of multiple chronic diseases, including cardiovascular disease, cancer and dementia. Life expectancy has increased in certain countries but this phenomenon is associated with a reduction of years of healthy life. Aging is associated with a number of physical and functional changes, especially sarcopenia. Sarcopenia is a clinical condition associated with a decrease in skeletal muscle and muscle strength, however, sarcopenia is a reversible condition. On the basis of the current scientific literature, sarcopenia could more appropriately capture an individual's vulnerability to negative health-related outcomes since it represents an early form of the chronic diseases. Recognition of this clinical condition can improve the management of older individuals in many different clinical settings. Despite the limitations of the indirect methods used to study body composition, the Italian College of the Academic Nutritionists ME/49 recommends that health authorities and health professionals around the world should make a greater effort to diagnose sarcopenia earlier and to manage it more effectively. In line with the development of cancer screening, the use of two diagnostic tools for sarcopenia (BIA and DXA) should be implemented.
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Affiliation(s)
- Tiziana Montalcini
- Department of Clinical and Experiment Medicine, University of Catanzaro Magna Grecia, Viale Europa, 88100 Catanzaro, Italy;
| | - Arturo Pujia
- Department of Clinical and Experiment Medicine, University of Catanzaro Magna Grecia, Viale Europa, 88100 Catanzaro, Italy;
| | - Lorenzo M. Donini
- Department of Experimental Medicine, University of la Sapienza, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Lucia Frittitta
- Department of Clinical and Experiment Medicine, University of Catania, Via Santa Sofia, 86-95123 Catania, Italy;
| | - Fabio Galvano
- Department of Biomedical and Biotechnology Science, University of Catania, Via Santa Sofia, 86-95123 Catania, Italy;
| | - Andrea Natali
- Department of Clinical and Experiment Medicine, University of Pisa, Lungarno Antonio Pacinotti, 43, 56126 Pisa, Italy;
| | - Loris Pironi
- Department of Medical and Surgical Science, University of Bologna, Via Pupilli, 1, 40136 Bologna, Italy;
| | - Marisa Porrini
- Department of Food, Nutrition and Environment Science, University of Milan, Via Festa del Perdono, 7, 20122 Milano, Italy; (M.P.); (P.R.)
| | - Patrizia Riso
- Department of Food, Nutrition and Environment Science, University of Milan, Via Festa del Perdono, 7, 20122 Milano, Italy; (M.P.); (P.R.)
| | - Angela Albarosa Rivellese
- Department of Clinical and Experiment Medicine, University of Naples Federico II, Corso Umberto I, 40, 80138 Napoli, Italy;
| | - Diego Russo
- Department of Health Science, University of Catanzaro Magna Grecia, Viale Europa, 88100 Catanzaro, Italy;
| | - Giovanni Scapagnini
- Department of Medicine and Health Science, University of Molise, Via F. De Sanctis, 86100 Campobasso, Italy;
| | - Mauro Serafini
- Department of Bioscience and food technology, University of Teramo, Via Renato Balzarini, 1, 64100 Teramo, Italy;
| | - Anna Tagliabue
- Department of Public Health, University of Pavia, Corso Str. Nuova, 65, 27100 Pavia, Italy;
| | - Antonino De Lorenzo
- Biomedicine and Prevention, University of Tor Vergata, Via Montpellier, 1, 00133 Roma, Italy;
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Severinsen MCK, Pedersen BK. Muscle-Organ Crosstalk: The Emerging Roles of Myokines. Endocr Rev 2020; 41:5835999. [PMID: 32393961 PMCID: PMC7288608 DOI: 10.1210/endrev/bnaa016] [Citation(s) in RCA: 565] [Impact Index Per Article: 113.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 05/06/2020] [Indexed: 02/06/2023]
Abstract
Physical activity decreases the risk of a network of diseases, and exercise may be prescribed as medicine for lifestyle-related disorders such as type 2 diabetes, dementia, cardiovascular diseases, and cancer. During the past couple of decades, it has been apparent that skeletal muscle works as an endocrine organ, which can produce and secrete hundreds of myokines that exert their effects in either autocrine, paracrine, or endocrine manners. Recent advances show that skeletal muscle produces myokines in response to exercise, which allow for crosstalk between the muscle and other organs, including brain, adipose tissue, bone, liver, gut, pancreas, vascular bed, and skin, as well as communication within the muscle itself. Although only few myokines have been allocated to a specific function in humans, it has been identified that the biological roles of myokines include effects on, for example, cognition, lipid and glucose metabolism, browning of white fat, bone formation, endothelial cell function, hypertrophy, skin structure, and tumor growth. This suggests that myokines may be useful biomarkers for monitoring exercise prescription for people with, for example, cancer, diabetes, or neurodegenerative diseases.
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Affiliation(s)
- Mai Charlotte Krogh Severinsen
- Centre of Inflammation and Metabolism/Centre for Physical Activity Research (CIM/CFAS), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Bente Klarlund Pedersen
- Centre of Inflammation and Metabolism/Centre for Physical Activity Research (CIM/CFAS), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Bani Hassan E, Vogrin S, Hernandez Viña I, Boersma D, Suriyaarachchi P, Duque G. Hemoglobin Levels are Low in Sarcopenic and Osteosarcopenic Older Persons. Calcif Tissue Int 2020; 107:135-142. [PMID: 32440760 DOI: 10.1007/s00223-020-00706-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 05/12/2020] [Indexed: 12/16/2022]
Abstract
Anemia is commonly associated with osteoporosis and sarcopenia in older persons. However, there is a common subset of patients identified as osteosarcopenic at a higher risk of adverse outcomes. Whether these patients are also at a higher risk of anemia remains unknown. In this study, we aimed to compare hemoglobin (Hb) levels in osteosarcopenic older subjects versus those with sarcopenia, osteopenia/osteoporosis alone and controls. Cross-sectional study in 558 community-dwelling participants older than 65 (mean age 79 ± 7.5 years) from Western Sydney, Australia. Associations of anemia with sarcopenia, osteopenia/osteoporosis and osteosarcopenia were assessed. Participants were able to mobilize independently, reported a risk/history of falls and were not cognitively impaired. We used the original (EWGOP) and revised (EWGSOP2) European consensus on definition of sarcopenia, and WHO definitions of osteoporosis and osteopenia. Based on both European definitions of sarcopenia prevalence of anemia was the highest among sarcopenic patients (39%), followed by osteosarcopenic (34%), osteoporotic/penic (26%), and controls (24%). Anemia prevalence in total was 176/553 (31.5%). Osteosarcopenic patients on average had 6.3 g/L lower Hb levels compared to controls (p = 0.001), and 3.7 g/L lower Hb than patients with osteoporosis/penia (p < 0.026). Interestingly, levels of Hb did not differ between sarcopenic vs osteosarcopenic patients (p = 0.817) and between osteoporotic/osteopenic patients vs controls (p > 0.259). The higher prevalence of anemia and lower hemoglobin in sarcopenic and osteosarcopenic subjects compared to osteoporotic/penic participants and controls was established. However, the previously reported associations between osteoporosis and anemia were not confirmed. A likely explanation can be inclusion of osteosarcopenic subjects as osteoporotic in previous studies.
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Affiliation(s)
- Ebrahim Bani Hassan
- Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, Sunshine Hospital, L3 WCHRE Bldg, 176 Furlong Road, St Albans, VIC, 3021, Australia.
- Department of Medicine-Western Health, The University of Melbourne, St. Albans, VIC, Australia.
| | - Sara Vogrin
- Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, Sunshine Hospital, L3 WCHRE Bldg, 176 Furlong Road, St Albans, VIC, 3021, Australia
- Department of Medicine-Western Health, The University of Melbourne, St. Albans, VIC, Australia
| | | | - Derek Boersma
- Falls and Fractures Clinic, Department of Geriatric Medicine, Nepean Hospital, Penrith, NSW, Australia
| | - Pushpa Suriyaarachchi
- Falls and Fractures Clinic, Department of Geriatric Medicine, Nepean Hospital, Penrith, NSW, Australia
| | - Gustavo Duque
- Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, Sunshine Hospital, L3 WCHRE Bldg, 176 Furlong Road, St Albans, VIC, 3021, Australia.
- Department of Medicine-Western Health, The University of Melbourne, St. Albans, VIC, Australia.
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49
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Kirk B, Feehan J, Lombardi G, Duque G. Muscle, Bone, and Fat Crosstalk: the Biological Role of Myokines, Osteokines, and Adipokines. Curr Osteoporos Rep 2020; 18:388-400. [PMID: 32529456 DOI: 10.1007/s11914-020-00599-y] [Citation(s) in RCA: 291] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Skeletal muscle and bone are connected anatomically and physiologically, and play a crucial role in human locomotion and metabolism. Historically, the coupling between muscle and bone has been viewed in light of mechanotransduction, which dictates that the mechanical forces applied to muscle are transmitted to the skeleton to initiate bone formation. However, these organs also communicate through the endocrine system, orchestrated by a family of cytokines namely myokines (derived from myocytes) and osteokines (derived from bone cells). A third player in this biochemical crosstalk is adipose tissue and the secretion of adipokines (derived from adipocytes). In this review, we discuss the bidirectional effects of myokines and osteokines on muscle and bone metabolism, and the impact of adipokines on both of these secretory organs. RECENT FINDINGS Several myokines, notably, IL6, irisin, IGF-1, BDNF, myostatin, and FGF2 exert anabolic/catabolic effects on bone, while the osteokines osteocalcin and sclerostin have shown to induce muscle anabolism and catabolism, respectively. Adipokines, such as leptin, resistin, adiponectin, and TNFα (released from adipose tissue), can also modulate muscle and bone metabolism. Contrarily, exercise-mediated release of lipolytic myokines (IL6, irisin, and LIF) stimulates thermogenesis by promoting the browning of adipocytes. Myokines, osteokines, and adipokines exert autocrine/paracrine effects locally as well as through the endocrine system, to regulate muscle, bone, and fat metabolism. Reductions in physical activity and increases in energy intake, both linked with aging, leads to adipocyte hypertrophy and the recruitment of immunological cells (macrophages). In turn, this releases pro-inflammatory adipokines which induces chronic low-grade inflammation (LGI), a key player in the pathology of several diseases. However, exercise-induced stimulation of bioactive cytokines, through muscle-bone-fat crosstalk, increases muscle anabolism, bone formation, mitochondrial biogenesis, glucose utilization, and fatty acid oxidation, and attenuates chronic LGI.
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Affiliation(s)
- Ben Kirk
- Department of Medicine-Western Health, Melbourne Medical School, University of Melbourne, St Albans, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia
| | - Jack Feehan
- Department of Medicine-Western Health, Melbourne Medical School, University of Melbourne, St Albans, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
| | - Gustavo Duque
- Department of Medicine-Western Health, Melbourne Medical School, University of Melbourne, St Albans, VIC, Australia.
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia.
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50
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The Systemic Effects of Exercise on Regulators of Muscle and Bone in Girls and Women. Pediatr Exerc Sci 2020; 32:117-123. [PMID: 32531761 DOI: 10.1123/pes.2019-0179] [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: 08/14/2019] [Revised: 12/17/2019] [Accepted: 01/24/2020] [Indexed: 11/18/2022]
Abstract
PURPOSE To assess the systemic effects of an acute bout of moderate-intensity exercise on factors that are known to regulate muscle and bone growth in prepubertal girls and women. METHODS A total of 12 prepubertal girls (8-10 y) and 12 women (20-30 y) cycled at 60% maximal oxygen uptake for 1 hour followed by 1 hour recovery. Blood samples were collected at rest, mid-exercise, end of exercise, mid-recovery, and end of recovery. Plasma was analyzed for interleukin-6, chemokine ligand 1, fibroblast growth factor-2, total insulin growth factor-1 (IGF-1), and free IGF-1 using enzyme-linked immunosorbent assays assays. RESULTS Both groups had similar concentrations of systemic factors at baseline with the exception of free IGF-1, which was higher in girls (P = .001). Interleukin-6 response was lower in girls versus women (P = .04), with a difference of +105.1% at end of exercise (P < .001), +113.5% at mid-recovery (P = .001), and +93.2% at end of recovery (P = .02). Girls and women exhibited significant declines in chemokine ligand 1, fibroblast growth factor-2, and total IGF-1 during recovery. CONCLUSION Compared with women, an acute bout of moderate-intensity exercise in girls elicits a lower inflammatory response, suggesting that other mechanisms may be more important for driving the anabolic effects of exercise on muscle and bone in girls.
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