1
|
Liu D, Wang S, Liu S, Wang Q, Che X, Wu G. Frontiers in sarcopenia: Advancements in diagnostics, molecular mechanisms, and therapeutic strategies. Mol Aspects Med 2024; 97:101270. [PMID: 38583268 DOI: 10.1016/j.mam.2024.101270] [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: 10/28/2023] [Revised: 03/05/2024] [Accepted: 03/19/2024] [Indexed: 04/09/2024]
Abstract
The onset of sarcopenia is intimately linked with aging, posing significant implications not only for individual patient quality of life but also for the broader societal healthcare framework. Early and accurate identification of sarcopenia and a comprehensive understanding of its mechanistic underpinnings and therapeutic targets paramount to addressing this condition effectively. This review endeavors to present a cohesive overview of recent advancements in sarcopenia research and diagnosis. We initially delve into the contemporary diagnostic criteria, specifically referencing the European Working Group on Sarcopenia in Older People (EWGSOP) 2 and Asian Working Group on Sarcopenia (AWGS) 2019 benchmarks. Additionally, we elucidate comprehensive assessment techniques for muscle strength, quantity, and physical performance, highlighting tools such as grip strength, chair stand test, dual-energy X-ray Absorptiometry (DEXA), bioelectrical impedance analysis (BIA), gait speed, and short physical performance battery (SPPB), while also discussing their inherent advantages and limitations. Such diagnostic advancements pave the way for early identification and unequivocal diagnosis of sarcopenia. Proceeding further, we provide a deep-dive into sarcopenia's pathogenesis, offering a thorough examination of associated signaling pathways like the Myostatin, AMP-activated protein kinase (AMPK), insulin/IGF-1 Signaling (IIS), and the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathways. Each pathway's role in sarcopenia mediation is detailed, underscoring potential therapeutic target avenues. From a mechanistic perspective, the review also underscores the pivotal role of mitochondrial dysfunction in sarcopenia, emphasizing elements such as mitochondrial oxidative overload, mitochondrial biogenesis, and mitophagy, and highlighting their therapeutic significance. At last, we capture recent strides made in sarcopenia treatment, ranging from nutritional and exercise interventions to potential pharmacological and supplementation strategies. In sum, this review meticulously synthesizes the latest scientific developments in sarcopenia, aiming to enhance diagnostic precision in clinical practice and provide comprehensive insights into refined mechanistic targets and innovative therapeutic interventions, ultimately contributing to optimized patient care and advancements in the field.
Collapse
Affiliation(s)
- Dequan Liu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China
| | - Shijin Wang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China
| | - Shuang Liu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China
| | - Qifei Wang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China.
| | - Xiangyu Che
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China.
| | - Guangzhen Wu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China.
| |
Collapse
|
2
|
Militello R, Luti S, Gamberi T, Pellegrino A, Modesti A, Modesti PA. Physical Activity and Oxidative Stress in Aging. Antioxidants (Basel) 2024; 13:557. [PMID: 38790662 PMCID: PMC11117672 DOI: 10.3390/antiox13050557] [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: 04/02/2024] [Revised: 04/22/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024] Open
Abstract
Biological aging, characterized by changes in metabolism and physicochemical properties of cells, has an impact on public health. Environment and lifestyle, including factors like diet and physical activity, seem to play a key role in healthy aging. Several studies have shown that regular physical activity can enhance antioxidant defense mechanisms, including the activity of enzymes such as superoxide dismutase (SOD), catalase, and glutathione peroxidase. However, intense or prolonged exercise can also lead to an increase in reactive oxygen species (ROS) production temporarily, resulting in oxidative stress. This phenomenon is referred to as "exercise-induced oxidative stress". The relationship between physical activity and oxidative stress in aging is complex and depends on various factors such as the type, intensity, duration, and frequency of exercise, as well as individual differences in antioxidant capacity and adaptation to exercise. In this review, we analyzed what is reported by several authors regarding the role of physical activity on oxidative stress in the aging process as well as the role of hormesis and physical exercise as tools for the prevention and treatment of sarcopenia, an aging-related disease. Finally, we reported what has recently been studied in relation to the effect of physical activity and sport on aging in women.
Collapse
Affiliation(s)
- Rosamaria Militello
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy; (R.M.); (S.L.); (T.G.)
| | - Simone Luti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy; (R.M.); (S.L.); (T.G.)
| | - Tania Gamberi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy; (R.M.); (S.L.); (T.G.)
| | - Alessio Pellegrino
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (A.P.); (P.A.M.)
| | - Alessandra Modesti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy; (R.M.); (S.L.); (T.G.)
| | - Pietro Amedeo Modesti
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (A.P.); (P.A.M.)
| |
Collapse
|
3
|
Li S, Wang P, Cai Z, Jiang W, Xin X, Wang X, Zhou X. Correlates of physical activity levels, muscle strength, working memory, and cognitive function in older adults. Front Aging Neurosci 2023; 15:1283864. [PMID: 38161587 PMCID: PMC10757612 DOI: 10.3389/fnagi.2023.1283864] [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: 08/30/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
Objective To explore the relationship between physical activity level, muscle strength, working memory and cognitive function in older adults. Methods A cross-sectional research design was employed to recruit 120 older adults individuals aged 70 and above. Participants were asked to complete the International Physical Activity Questionnaire-Short Form and the Montreal Cognitive Assessment Scale. Data on variables such as grip strength and performance on the N-back task were collected. Data analysis involved the use of independent samples t-tests, χ2 tests, linear regression analysis, Pearson correlation analysis, and one-way analysis of variance (ANOVA). Results The detection rate of cognitive dysfunction in older adults was 53.211%; 1-back correct rate had an explanatory power of 11.6% for the cognitive function scores of older adults (R2 = 0.116, p < 0.001); grip strength showed a significant positive correlation with 1-back correct rate (r = 0.417, p < 0.001), and was significantly correlated with the 0-back response time (r = -0.478), 1 -back response time (r = -0.441) were significantly negatively correlated (p < 0.001); physical activity level was significantly positively correlated with grip strength (r = 0.559, p < 0.001), and the difference in grip strength among older adults with different physical activity levels was statistically significant (F = 19.685, p < 0.001). Conclusion Physical activity level, muscle strength, working memory, and cognitive function are closely related in older adults, and the relational pathway of physical activity → muscle strength → working memory → cognitive function may serve as a useful addition to promote the field of cognitive research in older adults. To identify and prevent cognitive decline in older adults, physical activity questionnaires, grip strength tests, and 1-back task tests can be extended to nursing homes and communities.
Collapse
Affiliation(s)
- Shufan Li
- School of Physical Education, Shanghai University of Sport, Shanghai, China
| | - Peng Wang
- School of Physical Education, Shanghai University of Sport, Shanghai, China
| | - Zhidong Cai
- Department of Physical Education, Suzhou University of Science and Technology, Suzhou, China
| | - Wanting Jiang
- School of Physical Education, Shanghai University of Sport, Shanghai, China
| | - Xin Xin
- School of Physical Education, Shanghai University of Sport, Shanghai, China
| | - Xing Wang
- School of Physical Education, Shanghai University of Sport, Shanghai, China
| | - Xiaojing Zhou
- School of Sports and Health of Shanghai Lixin University of Accounting and Finance, Shanghai, China
| |
Collapse
|
4
|
Bilski J, Schramm-Luc A, Szczepanik M, Mazur-Biały AI, Bonior J, Luc K, Zawojska K, Szklarczyk J. Adipokines in Rheumatoid Arthritis: Emerging Biomarkers and Therapeutic Targets. Biomedicines 2023; 11:2998. [PMID: 38001998 PMCID: PMC10669400 DOI: 10.3390/biomedicines11112998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease manifested by joint involvement, extra-articular manifestations, and general symptoms. Adipose tissue, previously perceived as an inert energy storage organ, has been recognised as a significant contributor to RA pathophysiology. Adipokines modulate immune responses, inflammation, and metabolic pathways in RA. Although most adipokines have a pro-inflammatory and aggravating effect on RA, some could counteract this pathological process. The coexistence of RA and sarcopenic obesity (SO) has gained attention due to its impact on disease severity and outcomes. Sarcopenic obesity further contributes to the inflammatory milieu and metabolic disturbances. Recent research has highlighted the intricate crosstalk between adipose tissue and skeletal muscle, suggesting potential interactions between these tissues in RA. This review summarizes the roles of adipokines in RA, particularly in inflammation, immune modulation, and joint destruction. In addition, it explores the emerging role of adipomyokines, specifically irisin and myostatin, in the pathogenesis of RA and their potential as therapeutic targets. We discuss the therapeutic implications of targeting adipokines and adipomyokines in RA management and highlight the challenges and future directions for research in this field.
Collapse
Affiliation(s)
- Jan Bilski
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-008 Krakow, Poland; (A.I.M.-B.); (K.Z.)
| | - Agata Schramm-Luc
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland; (A.S.-L.); (K.L.)
| | - Marian Szczepanik
- Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-034 Krakow, Poland;
| | - Agnieszka Irena Mazur-Biały
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-008 Krakow, Poland; (A.I.M.-B.); (K.Z.)
| | - Joanna Bonior
- Department of Medical Physiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-126 Krakow, Poland; (J.B.); (J.S.)
| | - Kevin Luc
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland; (A.S.-L.); (K.L.)
| | - Klaudia Zawojska
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-008 Krakow, Poland; (A.I.M.-B.); (K.Z.)
| | - Joanna Szklarczyk
- Department of Medical Physiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-126 Krakow, Poland; (J.B.); (J.S.)
| |
Collapse
|
5
|
Ahmadi Hekmatikar A, Nelson A, Petersen A. Highlighting the idea of exerkines in the management of cancer patients with cachexia: novel insights and a critical review. BMC Cancer 2023; 23:889. [PMID: 37730552 PMCID: PMC10512651 DOI: 10.1186/s12885-023-11391-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/10/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Exerkines are all peptides, metabolites, and nucleic acids released into the bloodstream during and after physical exercise. Exerkines liberated from skeletal muscle (myokines), the heart (cardiokines), liver (hepatokines), white adipose tissue (adipokines), brown adipose tissue (batokines), and neurons (neurokines) may benefit health and wellbeing. Cancer-related cachexia is a highly prevalent disorder characterized by weight loss with specific skeletal muscle and adipose tissue loss. Many studies have sought to provide exercise strategies for managing cachexia, focusing on musculoskeletal tissue changes. Therefore, understanding the responses of musculoskeletal and other tissue exerkines to acute and chronic exercise may provide novel insight and recommendations for physical training to counteract cancer-related cachexia. METHODS For the purpose of conducting this study review, we made efforts to gather relevant studies and thoroughly discuss them to create a comprehensive overview. To achieve this, we conducted searches using appropriate keywords in various databases. Studies that were deemed irrelevant to the current research, not available in English, or lacking full-text access were excluded. Nevertheless, it is important to acknowledge the limited amount of research conducted in this specific field. RESULTS In order to obtain a comprehensive understanding of the findings, we prioritized human studies in order to obtain results that closely align with the scope of the present study. However, in instances where human studies were limited or additional analysis was required to draw more robust conclusions, we also incorporated animal studies. Finally, 295 studies, discussed in this review. CONCLUSION Our understanding of the underlying physiological mechanisms related to the significance of investigating exerkines in cancer cachexia is currently quite basic. Nonetheless, this demonstrated that resistance and aerobic exercise can contribute to the reduction and control of the disease in individuals with cancer cachexia, as well as in survivors, by inducing changes in exerkines.
Collapse
Affiliation(s)
- Amirhossein Ahmadi Hekmatikar
- Department of Physical Education & Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, 14117-13116, Iran
| | - André Nelson
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Aaron Petersen
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.
| |
Collapse
|
6
|
Zhang L, Lv J, Wang C, Ren Y, Yong M. Myokine, a key cytokine for physical exercise to alleviate sarcopenic obesity. Mol Biol Rep 2023; 50:2723-2734. [PMID: 36571655 DOI: 10.1007/s11033-022-07821-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/29/2022] [Accepted: 07/24/2022] [Indexed: 12/27/2022]
Abstract
Skeletal muscle has a robust endocrine function as a powerful organ and can secrete and release cytokines or polypeptides known as myokines. These myokines have significant regulatory effects on signal transduction in skeletal muscle and the metabolism of peripheral tissues and organs and exert biological effects via autocrine, paracrine, or endocrine forms. Obesity and aging cause myokine secretion dysregulation, and hastening sarcopenic obesity (SO) development. Exercise is currently an excellent intervention and prevention method for SO. Meanwhile, exercise impacts many organs and tissues. These organs and tissues will produce various myokines in response to movement and metabolism throughout the body to govern muscle differentiation, growth, and remodeling. According to accumulating data, exercise can increase the release of myokines from diverse tissues into the blood and postpone the SO onset and progression by influencing protein metabolism, inflammation, mitochondrial quality control, and other mechanisms.
Collapse
Affiliation(s)
- Lei Zhang
- Physical Education and Sport Science, Soochow University, Suzhou, Jiangsu Province, China
| | - Junjie Lv
- Department of Sport, Physical Education and Health, Hong Kong Baptist University, Hong Kong, China
| | - Cenyi Wang
- Physical Education and Sport Science, Soochow University, Suzhou, Jiangsu Province, China
| | - Yuanyuan Ren
- Physical Education and Sport Science, Soochow University, Suzhou, Jiangsu Province, China.
| | - Ming Yong
- Physical Education and Sport Science, Soochow University, Suzhou, Jiangsu Province, China.
| |
Collapse
|
7
|
Cheng KYK, Bao Z, Long Y, Liu C, Huang T, Cui C, Chow SKH, Wong RMY, Cheung WH. Sarcopenia and Ageing. Subcell Biochem 2023; 103:95-120. [PMID: 37120466 DOI: 10.1007/978-3-031-26576-1_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Musculoskeletal ageing is a major health challenge as muscles and bones constitute around 55-60% of body weight. Ageing muscles will result in sarcopenia that is characterized by progressive and generalized loss of skeletal muscle mass and strength with a risk of adverse outcomes. In recent years, a few consensus panels provide new definitions for sarcopenia. It was officially recognized as a disease in 2016 with an ICD-10-CM disease code, M62.84, in the International Classification of Diseases (ICD). With the new definitions, there are many studies emerging to investigate the pathogenesis of sarcopenia, exploring new interventions to treat sarcopenia and evaluating the efficacy of combination treatments for sarcopenia. The scope of this chapter is to summarize and appraise the evidence in terms of (1) clinical signs, symptoms, screening, and diagnosis, (2) pathogenesis of sarcopenia with emphasis on mitochondrial dysfunction, intramuscular fat infiltration and neuromuscular junction deterioration, and (3) current treatments with regard to physical exercises and nutritional supplement.
Collapse
Affiliation(s)
- Keith Yu-Kin Cheng
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhengyuan Bao
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yufeng Long
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Chaoran Liu
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Tao Huang
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Can Cui
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Simon Kwoon-Ho Chow
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
| | - Ronald Man Yeung Wong
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Wing-Hoi Cheung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China.
| |
Collapse
|
8
|
Seo JH, Lee Y. Association of physical activity with sarcopenia evaluated based on muscle mass and strength in older adults: 2008-2011 and 2014 - 2018 Korea National Health and Nutrition Examination Surveys. BMC Geriatr 2022; 22:217. [PMID: 35296249 PMCID: PMC8928682 DOI: 10.1186/s12877-022-02900-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 03/04/2022] [Indexed: 01/11/2023] Open
Abstract
Background Adequate physical activity (PA) is essential for preventing sarcopenia in older adults. However, there are insufficient epidemiological data on the intensity of PA needed to prevent age-related sarcopenia. The purpose of this study was to investigate the association of PA intensity with skeletal muscle mass and muscle strength. Methods This was a population-based study with a cross-sectional design that was conducted using data from the 2008 − 2011 and 2014 − 2018 Korea National Health and Nutrition Examination Surveys, which included a total of 11,162 participants aged ≥ 60 years. PA was assessed using the results of a questionnaire and organized by intensity, frequency, and duration. The study population was divided into the following groups based on PA intensity: no exercise, walking only, moderate PA, and vigorous PA. To assess sarcopenia, skeletal muscle index (SMI) and hand grip strength (HGS) were measured as indicators of muscle mass and strength, respectively. Logistic regression analysis was used to explore the relationship between PA intensity and sarcopenia. Results SMI and HGS were significantly higher in men and women engaged in moderate to vigorous PA than in those who did not exercise. The odds ratios (ORs) for sarcopenia defined based on SMI and HGS were lowest in men engaged in vigorous PA (0.444, 95% confidence interval [CI]: 0.242 − 0.818 and 0.450, 95% CI: 0.228 − 0.890, respectively). In women, the OR for sarcopenia defined based on HGS was the lowest in the group engaged in vigorous PA (0.441, 95% CI: 0.199 − 0.975), while there was no risk reduction for sarcopenia defined based on SMI. Conclusions Moderate to vigorous PA was highly correlated with SMI and HGS in men and women. Intensive PA was positively correlated with sarcopenia prevention, which can be monitored using HGS.
Collapse
Affiliation(s)
- Je Hyun Seo
- Veterans Health Service Medical Center, Veterans Medical Research Institute, Jinhwangdo-ro 61-gil 53, Gangdong-gu Seoul, Korea.
| | - Young Lee
- Veterans Health Service Medical Center, Veterans Medical Research Institute, Jinhwangdo-ro 61-gil 53, Gangdong-gu Seoul, Korea
| |
Collapse
|
9
|
Bilski J, Pierzchalski P, Szczepanik M, Bonior J, Zoladz JA. Multifactorial Mechanism of Sarcopenia and Sarcopenic Obesity. Role of Physical Exercise, Microbiota and Myokines. Cells 2022; 11:cells11010160. [PMID: 35011721 PMCID: PMC8750433 DOI: 10.3390/cells11010160] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 02/07/2023] Open
Abstract
Obesity and ageing place a tremendous strain on the global healthcare system. Age-related sarcopenia is characterized by decreased muscular strength, decreased muscle quantity, quality, and decreased functional performance. Sarcopenic obesity (SO) is a condition that combines sarcopenia and obesity and has a substantial influence on the older adults’ health. Because of the complicated pathophysiology, there are disagreements and challenges in identifying and diagnosing SO. Recently, it has become clear that dysbiosis may play a role in the onset and progression of sarcopenia and SO. Skeletal muscle secretes myokines during contraction, which play an important role in controlling muscle growth, function, and metabolic balance. Myokine dysfunction can cause and aggravate obesity, sarcopenia, and SO. The only ways to prevent and slow the progression of sarcopenia, particularly sarcopenic obesity, are physical activity and correct nutritional support. While exercise cannot completely prevent sarcopenia and age-related loss in muscular function, it can certainly delay development and slow down the rate of sarcopenia. The purpose of this review was to discuss potential pathways to muscle deterioration in obese individuals. We also want to present the current understanding of the role of various factors, including microbiota and myokines, in the process of sarcopenia and SO.
Collapse
Affiliation(s)
- Jan Bilski
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-008 Krakow, Poland
- Correspondence: ; Tel.: +48-12-421-93-51
| | - Piotr Pierzchalski
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Marian Szczepanik
- Department of Medical Biology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-034 Krakow, Poland;
| | - Joanna Bonior
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Jerzy A. Zoladz
- Chair of Exercise Physiology and Muscle Bioenergetics, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Krakow, Poland;
| |
Collapse
|
10
|
Vasyukova OV, Kasyanova YV, Okorokov PL, Bezlepkina OB. [Myokines and adipomyokines: inflammatory mediators or unique molecules of targeted therapy for obesity?]. ACTA ACUST UNITED AC 2021; 67:36-45. [PMID: 34533012 DOI: 10.14341/probl12779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/02/2021] [Accepted: 08/10/2021] [Indexed: 11/06/2022]
Abstract
Skeletal muscles make up about 25% of the total mass in children and more than 40% in adults. Studies of the last twenty years have shown that along with the main functions, muscle tissue has hormonal activity. It was found that myocytes are able to release signaling molecules-myokines. They act auto-and paracrine within the muscle, and at a high level-through the systemic circulation, carrying out interactions between skeletal muscles and various organs and tissues, such as the liver, bone and adipose tissue, the brain. It is proved that the key factor in the expression of myokines is physical activity, and their level largely depends on physical fitness, the amount of skeletal muscle mass and its composition (the ratio of fast and slow fibers), on the intensity and duration of physical activity. Myokines have a wide range of physiological effects: myostatin suppresses the growth and differentiation of muscle tissue, and decorin, acting as its antagonist, promotes muscle hypertrophy. Interleukin 6 provides an energy substrate for contracting muscle fibers, fibroblast growth factor 21 activates the mechanisms of energy production during fasting and improves tissue sensitivity to insulin; irisin stimulates thermogenesis, glucose uptake by myocytes, and also contributes to an increase in bone mineral density. The study of myokines is one of the key links in understanding the mechanisms underlying obesity and metabolic complications, the consequences of a sedentary lifestyle, as well as the implementation of the action of physical activity. Taking into account the physiological effects of myokines in the body, in the future they can become therapeutic targets for the treatment of these conditions.
Collapse
|
11
|
Complex Exercise Improves Anti-Inflammatory and Anabolic Effects in Osteoarthritis-Induced Sarcopenia in Elderly Women. Healthcare (Basel) 2021; 9:healthcare9060711. [PMID: 34200794 PMCID: PMC8230475 DOI: 10.3390/healthcare9060711] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 12/27/2022] Open
Abstract
We investigated the effects of a 15-week complex exercise program on osteoarthritis and sarcopenia by analyzing anabolic effects and the impact on the activities of daily living (ADLs). Nineteen women aged ≥60 years with sarcopenia (SEG, n = 9) or diagnosed with osteoarthritis with sarcopenia (OSEG, n = 10) were enrolled and underwent an exercise program. Insulin-like growth factor 1 (IGF-1), irisin, myostatin, interleukin-10 (IL-10), and tumor necrosis factor alpha (TNF-a) levels were analyzed pre- and post-intervention. Thigh cross-sectional area (TCSA) was measured pre- and post-intervention via computed tomography. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Short Physical Performance Battery (SPBB) were assessed pre- and post-interventions to assess ADL. There was a significant interaction effect between SEG and OSEG at the IGF-1 level post-intervention. Irisin increased and myostatin decreased post-intervention in both groups. IL-10 increased and TNF-α decreased post-intervention with a significant interaction effect in the OSEG group. TCSAs increased post-intervention in both groups. There was a significant interaction between the two groups. OSEG showed a greater WOMAC decrease and SPPB increase post-intervention, and there was a significant interaction effect. Combined exercise may be effective in improving biochemical factors, anabolic effects, and ADL in elderly women with osteoarthritis and sarcopenia.
Collapse
|
12
|
Voluntary Wheel Running Exercise Improves Aging-Induced Sarcopenia via Activation of Peroxisome Proliferator-Activated Receptor Gamma Coactivator-1α/Fibronectin Type III Domain-Containing Protein 5/Adenosine Monophosphate-Activated Protein Kinase Signaling Pathway. Int Neurourol J 2021; 25:S27-34. [PMID: 34053208 PMCID: PMC8171240 DOI: 10.5213/inj.2142170.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/1979] [Accepted: 04/24/2021] [Indexed: 12/19/2022] Open
Abstract
Purpose In this study, the protective effect of voluntary wheel running exercise on muscle loss and muscle weakness in gastrocnemius of old rats was investigated. The association of voluntary wheel exercise with the peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α)/fibronectin type III domain-containing protein 5 (FNDC5)/adenosine monophosphate- activated protein kinase (AMPK) signaling pathway and vascular endothelial growth factor (VEGF) expression was also evaluated. Methods Six-month-old and 22-month-old male rats were used for this experiment. The rats in voluntary wheel running exercise groups were performed wheel running for 2 months. Weight bearing test for walking strength, rotarod test for motor coordination and balance, hematoxylin and eosin (H&E) staining for histological changes in the muscle tissues, Western blot analysis for PGC-1α, FNDC5, AMPK, immunofluorescence for VEGF were conducted. Results Decreased muscle mass, strength, and coordination due to aging were associated with a decrease in the PGC-1α/FNDC5/AMPK signaling pathway in the gastrocnemius. Voluntary wheel running exercise enhanced VEGF expression by activating the PGC-1α/FNDC5/AMPK signaling pathway, then increased muscle mass, strength, and coordination. Conclusions It has been suggested that voluntary wheel running exercise alleviates symptoms of urological diseases that are difficult to treat. Wheel running exercise is a good therapeutic strategy to prevent or treat aging-related sarcopenia.
Collapse
|
13
|
Curcumin-Loaded Hydrophobic Surface-Modified Hydroxyapatite as an Antioxidant for Sarcopenia Prevention. Antioxidants (Basel) 2021; 10:antiox10040616. [PMID: 33923718 PMCID: PMC8073515 DOI: 10.3390/antiox10040616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress and later-induced chronic inflammation have been reported to play an important role on the progression of sarcopenia. Current treatments for sarcopenia are mainly administered to patients whom sarcopenia already developed. However, there has been no promising results shown in therapy. Therefore, the development of therapeutic and preventive strategies against sarcopenia would be necessary. Curcumin is a traditional medicine that possesses anti-inflammatory and antioxidative properties. In the present study, hydroxyapatite was subjected to hydrophobic surface modifications for curcumin loading (Cur-SHAP). It was, subsequently, utilized for delivery to the patient's body via intramuscular injection in order to achieve constant release for more than 2 weeks, preventing the progression of the sarcopenia or even leading to recovery from the early stage of the illness. According to the results of WST-1, LIVE/DEAD, DCFDA, and gene expression assays, Cur-SHAP exhibited good biocompatibility and showed great antioxidant/anti-inflammatory effects through the endocytic pathway. The results of the animal studies showed that the muscle endurance, grip strength, and fat/lean mass ratio were all improved in Cur-SHAP-treated rats from LPS-induced sarcopenia. In summary, we successfully synthesized hydrophobic surface modification hydroxyapatite for curcumin loading (Cur-SHAP) and drug delivery via the IM route. The LPS-induced sarcopenia rats were able to recover from disease after the Cur-SHAP treatment.
Collapse
|
14
|
Farzanegi P, Zamani M, Khalili A, Dehghani H, Fotohi R, Ghanbarpour M, Hosseini S, Peeri M, Rahmati-Ahmadabad S, Azarbayjani M. Effects of upper- and lower-extremity resistance training on serum vascular endothelial growth factor, myostatin, endostatin and follistatin levels in sedentary male students. Sci Sports 2021. [DOI: 10.1016/j.scispo.2020.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
15
|
To Synthesize Hydroxyapatite by Modified Low Temperature Method Loaded with Bletilla striata Polysaccharide as Antioxidant for the Prevention of Sarcopenia by Intramuscular Administration. Antioxidants (Basel) 2021; 10:antiox10030488. [PMID: 33804703 PMCID: PMC8035982 DOI: 10.3390/antiox10030488] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/03/2021] [Accepted: 03/15/2021] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress has been suggested as an important factor in the progress of sarcopenia. The current treatments for sarcopenia have the disadvantages of insufficient effect or daily administration. Therefore, an alternative for effective, safety and long-term treatment may be a solution for unmet needs. Bletilla striata polysaccharide has been reported to have anti-oxidative and anti-inflammatory properties. In this study, we used Bletilla striata polysaccharide (BSP) combined with hydroxyapatite, a carrier. We hypothesized that the resulting combination (BSP-HAP) is a good formula for the controlled release of BSP via intramuscular (IM) administration, so as to prevent the worsening of presarcopenia or even recover from the early stage of the illness. In this research, BSP-HAP was synthesized by a modified low temperature co-precipitation process that would be beneficial for BSP loading. By conducting DCFDA, WST-1 and the Live/Dead assay, BSP-HAP is shown to be a biocompatible material which may release BSP by cells through the endocytosis pathway. Animal studies revealed that the rats treated with BSP-HAP could effectively recover muscle endurance, grip strength or fat/lean mass ratio from lipopolysaccharide (LPS)-induced sarcopenia. This study shows BSP delivered by BSP-HAP system has potential for application in the treatment and prevention of sarcopenia in the future.
Collapse
|
16
|
Circulating Mediators of Apoptosis and Inflammation in Aging; Physical Exercise Intervention. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18063165. [PMID: 33808526 PMCID: PMC8003155 DOI: 10.3390/ijerph18063165] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/13/2021] [Accepted: 03/17/2021] [Indexed: 12/27/2022]
Abstract
Sarcopenia is an age-related loss of skeletal muscle mass caused by many cellular mechanisms and also by lifestyle factors such as low daily physical activity. In addition, it has been shown that sarcopenia may be associated with inflammation and cognitive impairment in old age. Regular exercise is key in reducing inflammation and preventing sarcopenia and diseases related to cognitive impairment. The study was designed to assess the impact of exercise training on circulating apoptotic and inflammatory markers of sarcopenia in older adults. Eighty older adults aged 70.5 ± 5.8 years were randomized to the physically active group who participated in a 10-month Tai-Chi training session (TC, n = 40) and the control group who participated in health education sessions (HE, n = 40). Tai-Chi training caused a significant decrease in fat mass (FM) by 3.02 ± 3.99%, but an increase in appendicular skeletal muscle mass index (ASMI) by 1.76 ± 3.17% and gait speed by 9.07 ± 11.45%. Tai-Chi training elevated the plasma levels of C-reactive protein (CRP), tumor necrosis factor (TNFα), and tumor necrosis receptor factor II (TNFRII), and decreased caspases 8 and 9. Despite the increase in TNFα, apoptosis was not initiated, i.e., the cell-free DNA level did not change in the TC group. The study demonstrated that Tai-Chi training significantly reduced the symptoms of sarcopenia through the changes in body composition and physical performance, and improvements in cytokine-related mechanisms of apoptosis.
Collapse
|
17
|
Exercise-Induced Myokines can Explain the Importance of Physical Activity in the Elderly: An Overview. Healthcare (Basel) 2020; 8:healthcare8040378. [PMID: 33019579 PMCID: PMC7712334 DOI: 10.3390/healthcare8040378] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022] Open
Abstract
Physical activity has been found to aid the maintenance of health in the elderly. Exercise-induced skeletal muscle contractions lead to the production and secretion of many small proteins and proteoglycan peptides called myokines. Thus, studies on myokines are necessary for ensuring the maintenance of skeletal muscle health in the elderly. This review summarizes 13 myokines regulated by physical activity that are affected by aging and aims to understand their potential roles in metabolic diseases. We categorized myokines into two groups based on regulation by aerobic and anaerobic exercise. With aging, the secretion of apelin, β-aminoisobutyric acid (BAIBA), bone morphogenetic protein 7 (BMP-7), decorin, insulin-like growth factor 1 (IGF-1), interleukin-15 (IL-15), irisin, stromal cell-derived factor 1 (SDF-1), sestrin, secreted protein acidic rich in cysteine (SPARC), and vascular endothelial growth factor A (VEGF-A) decreased, while that of IL-6 and myostatin increased. Aerobic exercise upregulates apelin, BAIBA, IL-15, IL-6, irisin, SDF-1, sestrin, SPARC, and VEGF-A expression, while anaerobic exercise upregulates BMP-7, decorin, IGF-1, IL-15, IL-6, irisin, and VEGF-A expression. Myostatin is downregulated by both aerobic and anaerobic exercise. This review provides a rationale for developing exercise programs or interventions that maintain a balance between aerobic and anaerobic exercise in the elderly.
Collapse
|
18
|
Biglari S, Afousi AG, Mafi F, Shabkhiz F. High-intensity interval training-induced hypertrophy in gastrocnemius muscle via improved IGF-I/Akt/FoxO and myostatin/Smad signaling pathways in rats. Physiol Int 2020; 107:220-230. [PMID: 32644938 DOI: 10.1556/2060.2020.00020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 04/04/2020] [Indexed: 12/17/2022]
Abstract
Objective It has been shown that high-intensity interval training (HIIT) leads to skeletal muscle hypertrophy; however, its mechanisms of cellular and molecular regulation are still unclear. The purpose of this study was to investigate the effect of HIIT on muscle hypertrophy and major signal transduction pathways. Design 12 male rats were randomly divided into two groups: control and HIIT. The exercise group performed 30-min HIIT in each session (5 × 4-min intervals running at 85-95% VO2max separated by 2-min active rest at 55-60% VO2max), 3 days/week for 8 weeks. Muscle fiber cross-sectional area (CSA) and the expression of signal transduction pathway proteins were determined in the gastrocnemius muscle. Results In the HIIT group, the expression of IGF-I, IGF-IR Akt, p-Akt, AMPKα, p-AMPKα and follistatin increased significantly, whereas a significant decrease was observed in the expression of FoxO1, p-FoxO1, myostatin, ActRIIB, Smad2/3 and p-Smad2/3 (P < 0.05). However, there were no significant differences between the HIIT and control groups in the expression of mTOR, p-mTOR, P70S6K, and p-P70S6K (P > 0.05). In addition, CSA and gastrocnemius muscle weight increased significantly in the HIIT group (P < 0.05). Conclusions HIIT induced muscle hypertrophy by improving IGF-I/Akt/FoxO and myostatin/Smad signal transduction pathways.
Collapse
Affiliation(s)
- Soheil Biglari
- Department of Exercise Physiology, Faculty of Physical Education and Exercise Sciences, University of Tehran, Tehran, Islamic Republic of Iran
| | - Alireza Ghardashi Afousi
- Department of Exercise Physiology, Faculty of Physical Education and Exercise Sciences, University of Tehran, Tehran, Islamic Republic of Iran
| | - Farnoosh Mafi
- Department of Exercise Physiology, Faculty of Physical Education and Exercise Sciences, University of Tehran, Tehran, Islamic Republic of Iran
| | - Fatemeh Shabkhiz
- Department of Exercise Physiology, Faculty of Physical Education and Exercise Sciences, University of Tehran, Tehran, Islamic Republic of Iran
| |
Collapse
|
19
|
Sarcopenia: A Contemporary Health Problem among Older Adult Populations. Nutrients 2020; 12:nu12051293. [PMID: 32370051 PMCID: PMC7282252 DOI: 10.3390/nu12051293] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/23/2020] [Accepted: 04/26/2020] [Indexed: 12/21/2022] Open
Abstract
Sarcopenia, a geriatric disease characterized by a progressive loss of skeletal muscle mass and loss of muscle function, constitutes a rising, often undiagnosed health problem. Its prevalence in the elderly population is largely considered variable, as it ranges from 5% to 50% depending on gender, age, pathological conditions as well as diagnostic criteria. There is no one unified approach of treatment or assessment, which makes sarcopenia even harder to assess. There is a pressing need to provide better diagnosis, diagnostics, prevention, and individualized health care. Physical activity and nutrition are the main studied ways to prevent sarcopenia, and they also offer better outcomes. This review aims to report the prevalence of sarcopenia in older adults, its etiology, prevention, and treatment techniques.
Collapse
|
20
|
Sun JX, Yang ZY, Xie LM, Wang B, Bai N, Cai AL. TAZ and myostatin involved in muscle atrophy of congenital neurogenic clubfoot. World J Clin Cases 2019; 7:2238-2246. [PMID: 31531318 PMCID: PMC6718803 DOI: 10.12998/wjcc.v7.i16.2238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/23/2019] [Accepted: 07/27/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Muscular atrophy is the basic defect of neurogenic clubfoot. Muscle atrophy of clubfoot needs more scientific and reasonable imaging measurement parameters to evaluate. The Hippo pathway and myostatin pathway may be directly correlated in myogenesis. In this study, we will use congenital neurogenic clubfoot muscle atrophy model to verify in vivo. Further, the antagonistic mechanism of TAZ on myostatin was studied in the C2C12 cell differentiation model.
AIM To identify muscle atrophy in fetal neurogenic clubfoot by ultrasound imaging and detect the expression of TAZ and myostatin in gastrocnemius muscle. To elucidate the possible mechanisms by which TAZ antagonizes myostatin-induced atrophy in an in vitro cell model.
METHODS Muscle atrophy in eight cases of fetal unilateral clubfoot with nervous system abnormalities was identified by 2D and 3D ultrasound. Western blotting and immunostaining were performed to detect expression of myostatin and TAZ. TAZ overexpression in C2C12 myotubes and the expression of associated proteins were analyzed by western blotting.
RESULTS The maximum cross-sectional area of the fetal clubfoot on the varus side was reduced compared to the contralateral side. Myostatin was elevated in the atrophied gastrocnemius muscle, while TAZ expression was decreased. They were negatively correlated. TAZ overexpression reversed the diameter reduction of the myotube, downregulated phosphorylated Akt, and increased the expression of forkhead box O4 induced by myostatin.
CONCLUSION Ultrasound can detect muscle atrophy of fetal clubfoot. TAZ and myostatin are involved in the pathological process of neurogenic clubfoot muscle atrophy. TAZ antagonizes myostatin-induced myotube atrophy, potentially through regulation of the Akt/forkhead box O4 signaling pathway.
Collapse
Affiliation(s)
- Jia-Xing Sun
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Ze-Yu Yang
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Li-Mei Xie
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Bing Wang
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Ning Bai
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang 110004, Liaoning Province, China
| | - Ai-Lu Cai
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| |
Collapse
|
21
|
Yoo SZ, No MH, Heo JW, Park DH, Kang JH, Kim SH, Kwak HB. Role of exercise in age-related sarcopenia. J Exerc Rehabil 2018; 14:551-558. [PMID: 30276173 PMCID: PMC6165967 DOI: 10.12965/jer.1836268.134] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 06/14/2018] [Indexed: 11/22/2022] Open
Abstract
Sarcopenia is an age-associated decline of skeletal muscle mass and function and is known to lead to frailty, cachexia, osteoporosis, metabolic syndromes, and death. Notwithstanding the increasing incidence of sarcopenia, the molecular and cellular mechanisms driving age-related sarcopenia are not completely understood. This article reviews current definitions of sarcopenia, its potential mechanisms, and effects of exercise on sarcopenia. The pathogenesis of age-related sarcopenia is multifactorial and includes myostatin, inflammatory cytokines, and mitochondria-derived problems. Especially, age-induced mitochondrial dysfunction triggers the production of reactive oxygen species (ROS) by mitochondria, impedes mitochondrial dynamics, interrupts mitophagy, and leads to mitochondria-mediated apoptosis. Aerobic exercise provides at least a partial solution to sarcopenia as it ameliorates mitochondria-derived problems, and resistance exercise strengthens muscle mass and function. Furthermore, combinations of these exercise types provide the benefits of both. Collectively, this review summarizes potential mechanisms of age-related sarcopenia and emphasizes the use of exercise as a therapeutic strategy, suggesting that combined exercise provides the most beneficial means of combating age-related sarcopenia.
Collapse
Affiliation(s)
- Su-Zi Yoo
- Department of Kinesiology, Inha University, Incheon, Korea
| | - Mi-Hyun No
- Department of Kinesiology, Inha University, Incheon, Korea
| | - Jun-Won Heo
- Department of Kinesiology, Inha University, Incheon, Korea
| | - Dong-Ho Park
- Department of Kinesiology, Inha University, Incheon, Korea
| | - Ju-Hee Kang
- Department of Pharmacology and Medicinal Toxicology Research Center, Inha University School of Medicine, Incheon, Korea
| | - So Hun Kim
- Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
| | - Hyo-Bum Kwak
- Department of Kinesiology, Inha University, Incheon, Korea
| |
Collapse
|
22
|
Rissatto Sierra L, Fávaro G, Cerri BR, Rocha LC, de Yokomizo de Almeida SR, Watanabe IS, Ciena AP. Myotendinous junction plasticity in aged ovariectomized rats submitted to aquatic training. Microsc Res Tech 2018; 81:816-822. [PMID: 29689628 DOI: 10.1002/jemt.23040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 03/16/2018] [Accepted: 04/02/2018] [Indexed: 12/12/2022]
Abstract
The study aims to describe the tissue plasticity of MTJ through the morphological analysis of MTJ soleus in ovariectomized aged female Wistar rats submitted to aquatic training. Forty aged Wistar rats, 1 year and 2 months of age, were divided into four groups: sedentary (S), trained (T), ovariectomized (O), and trained/ovariectomized (OT). Employing the transmission electron microscopy, the ultrastructural and morphometric elements were revealed. In the S group, changes in morphological characteristics as a consequence of the aging process were seen, demonstrated by the conical shape of the muscle cell extremity, a large area with collagen deposit, and misalignment of sarcomeres in series. The T group presented ample adjustments when revealed the organization of MTJ, through the increase of the contact area and greater lengths of sarcoplasmatic invaginations and evaginations. The O group revealed extensive tissue disorganization with muscle atrophy, reduction of MTJ contact area, and consequently, changes in sarcoplasmatic invaginations and evaginations. The OT group demonstrated extensive remodeling with restructuring MTJ through the increase of tissue contact area, extensive organization, parallel arrangement, and increased length of sarcoplasmatic invaginations and evaginations. The distal sarcomeres presented higher lengths compared to the proximal sarcomeres in both the groups. We conclude that aquatic training was effective in the organization and structural remodeling of the myotendinous interface of ovariectomized aged rats. There was a greater area of contact, and consequently, greater resistance in the myotendinous interface promoting a lower predisposition to injuries.
Collapse
Affiliation(s)
- Luan Rissatto Sierra
- Department of Physical Education, Laboratory of Morphology and Physical Activity-"LAMAF", University State of São Paulo "Júlio de Mesquita Filho"-UNESP, Rio Claro, SP, Brasil
| | - Gabriel Fávaro
- Department of Physical Education, Laboratory of Morphology and Physical Activity-"LAMAF", University State of São Paulo "Júlio de Mesquita Filho"-UNESP, Rio Claro, SP, Brasil
| | - Bruno Rubin Cerri
- Department of Physical Education, Laboratory of Morphology and Physical Activity-"LAMAF", University State of São Paulo "Júlio de Mesquita Filho"-UNESP, Rio Claro, SP, Brasil
| | - Lara Caetano Rocha
- Department of Physical Education, Laboratory of Morphology and Physical Activity-"LAMAF", University State of São Paulo "Júlio de Mesquita Filho"-UNESP, Rio Claro, SP, Brasil
| | | | - Ii-Sei Watanabe
- Department of Anatomy, ICB-III, University of São Paulo-USP, São Paulo, SP, Brasil
| | - Adriano Polican Ciena
- Department of Physical Education, Laboratory of Morphology and Physical Activity-"LAMAF", University State of São Paulo "Júlio de Mesquita Filho"-UNESP, Rio Claro, SP, Brasil
| |
Collapse
|
23
|
Endoplasmic Reticulum Stress Induces Myostatin High Molecular Weight Aggregates and Impairs Mature Myostatin Secretion. Mol Neurobiol 2018; 55:8355-8373. [PMID: 29546591 PMCID: PMC6153721 DOI: 10.1007/s12035-018-0997-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 03/07/2018] [Indexed: 01/08/2023]
Abstract
Sporadic inclusion body myositis (sIBM) is the most prevalent acquired muscle disorder in the elderly with no defined etiology or effective therapy. Endoplasmic reticulum stress and deposition of myostatin, a secreted negative regulator of muscle growth, have been implicated in disease pathology. The myostatin signaling pathway has emerged as a major target for symptomatic treatment of muscle atrophy. Here, we systematically analyzed the maturation and secretion of myostatin precursor MstnPP and its metabolites in a human muscle cell line. We find that increased MsntPP protein levels induce ER stress. MstnPP metabolites were predominantly retained within the endoplasmic reticulum (ER), also evident in sIBM histology. MstnPP cleavage products formed insoluble high molecular weight aggregates, a process that was aggravated by experimental ER stress. Importantly, ER stress also impaired secretion of mature myostatin. Reduced secretion and aggregation of MstnPP metabolites were not simply caused by overexpression, as both events were also observed in wildtype cells under ER stress. It is tempting to speculate that reduced circulating myostatin growth factor could be one explanation for the poor clinical efficacy of drugs targeting the myostatin pathway in sIBM.
Collapse
|
24
|
Seldeen KL, Lasky G, Leiker MM, Pang M, Personius KE, Troen BR. High Intensity Interval Training Improves Physical Performance and Frailty in Aged Mice. J Gerontol A Biol Sci Med Sci 2018; 73:429-437. [PMID: 28633487 DOI: 10.1093/gerona/glx120] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 06/16/2017] [Indexed: 10/08/2023] Open
Abstract
Sarcopenia and frailty are highly prevalent in older individuals, increasing the risk of disability and loss of independence. High intensity interval training (HIIT) may provide a robust intervention for both sarcopenia and frailty by achieving both strength and endurance benefits with lower time commitments than other exercise regimens. To better understand the impacts of HIIT during aging, we compared 24-month-old C57BL/6J sedentary mice with those that were administered 10-minute uphill treadmill HIIT sessions three times per week over 16 weeks. Baseline and end point assessments included body composition, physical performance, and frailty based on criteria from the Fried physical frailty scale. HIIT-trained mice demonstrated dramatic improvement in grip strength (HIIT 10.9% vs -3.9% in sedentary mice), treadmill endurance (32.6% vs -2.0%), and gait speed (107.0% vs 39.0%). Muscles from HIIT mice also exhibited greater mass, larger fiber size, and an increase in mitochondrial biomass. Furthermore, HIIT exercise led to a dramatic reduction in frailty scores in five of six mice that were frail or prefrail at baseline, with four ultimately becoming nonfrail. The uphill treadmill HIIT exercise sessions were well tolerated by aged mice and led to performance gains, improvement in underlying muscle physiology, and reduction in frailty.
Collapse
Affiliation(s)
- Kenneth Ladd Seldeen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System
| | - Ginger Lasky
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System
| | - Merced Marie Leiker
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System
| | - Manhui Pang
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System
| | - Kirkwood Ely Personius
- Department of Rehabilitation Science, School of Public Health and Health Professionals, University at Buffalo, New York
| | - Bruce Robert Troen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo and Research Service, Veterans Affairs Western New York Healthcare System
| |
Collapse
|
25
|
De Lima Rodrigues D, Alves AN, Guimarães BR, de Alcântara Araujo Amorim WW, Bussadori SK, Fernandes KPS, Mesquita-Ferrari RA. Effect of prior application with and without post-injury treatment with low-level laser on the modulation of key proteins in the muscle repair process. Lasers Med Sci 2018; 33:1207-1213. [PMID: 29450762 DOI: 10.1007/s10103-018-2456-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 01/25/2018] [Indexed: 10/18/2022]
Abstract
The aim of the present study was to evaluate the effects of LLLT prior to muscle injury with and without post-injury irradiation on the expression of isoforms of myosin heavy chain (MyHC), calcineurin (CaN), and myostatin during the repair process. Wistar rats were divided into five groups: control (n = 7); injury (n = 21); LLLT + injury (n = 21); injury + LLLT (n = 21), and LLLT + injury + LLLT (n = 21). Cryoinjury was performed on the tibialis anterior (TA) muscle. The injured groups were euthanized at 3, 7, and 14 days after injury. LLLT was performed using an infrared laser (780 nm) with the following parameters: 10 J/cm2, 40 mW, 10 s per point, 8 points, and 3.2 J of total energy. At the end of each period, the TA muscle was removed for the analysis of MyHC, CaN, and myostatin gene expression using real-time PCR. The data were tested statistically by Kruskal-Wallis with Dunn's post hoc test (p < 0.05). The results demonstrated that prior irradiation reduced the mRNA expression of all proteins at 3 days. Post irradiation reduced the mRNA expression of MyHC-1, MyHC-2a, MyHC-2b, and CaN at 7 days. Prior irradiation combined with post-injury irradiation reduced the mRNA expression of MyHC-2x and CaN at 14 days and increased the mRNA expression of myostatin in the same period. In conclusion, different protocols of photobiomodulation can modulate the expression of the different isoforms of MyHC, CaN, and myostatin during the repair process. It is noteworthy that the combination of the prior and post-injury irradiation was the protocol that most promoted changes in the final phase of the repair process.
Collapse
Affiliation(s)
- Danielle De Lima Rodrigues
- Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil
| | - Agnelo Neves Alves
- Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil
| | - Beatriz Ribeiro Guimarães
- Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil
| | | | - Sandra Kalil Bussadori
- Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil.,Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil
| | | | - Raquel Agnelli Mesquita-Ferrari
- Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil. .,Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil. .,Departamento de Pós Graduação, Mestrado e Doutorado em Ciências da Reabilitação, Universidade Nove de Julho - UNINOVE, Rua Vergueiro, 235/249, Liberdade, São Paulo, SP, 01504-001, Brazil.
| |
Collapse
|
26
|
Jang YJ, Son HJ, Kim JS, Jung CH, Ahn J, Hur J, Ha TY. Coffee consumption promotes skeletal muscle hypertrophy and myoblast differentiation. Food Funct 2018; 9:1102-1111. [DOI: 10.1039/c7fo01683b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Coffee increases skeletal muscle function and hypertrophy by regulating the TGF-β/myostatin – Akt – mTORC1.
Collapse
Affiliation(s)
- Young Jin Jang
- Division of Nutrition and Metabolism Research
- Korea Food Research Institute
- Wanjugun
- Republic of Korea
| | - Hyo Jeong Son
- Division of Nutrition and Metabolism Research
- Korea Food Research Institute
- Wanjugun
- Republic of Korea
| | - Ji-Sun Kim
- Division of Nutrition and Metabolism Research
- Korea Food Research Institute
- Wanjugun
- Republic of Korea
- Department of Biotechnology
| | - Chang Hwa Jung
- Division of Nutrition and Metabolism Research
- Korea Food Research Institute
- Wanjugun
- Republic of Korea
- Division of Food Biotechnology
| | - Jiyun Ahn
- Division of Nutrition and Metabolism Research
- Korea Food Research Institute
- Wanjugun
- Republic of Korea
- Division of Food Biotechnology
| | - Jinyoung Hur
- Division of Nutrition and Metabolism Research
- Korea Food Research Institute
- Wanjugun
- Republic of Korea
- Division of Food Biotechnology
| | - Tae Youl Ha
- Division of Nutrition and Metabolism Research
- Korea Food Research Institute
- Wanjugun
- Republic of Korea
- Division of Food Biotechnology
| |
Collapse
|
27
|
Tang L, Zhang J, Zhao X, Li N, Jian W, Sun S, Guo J, Sun L, Ta D. Low-Intensity Pulsed Ultrasound Promotes Exercise-Induced Muscle Hypertrophy. ULTRASOUND IN MEDICINE & BIOLOGY 2017; 43:1411-1420. [PMID: 28461063 DOI: 10.1016/j.ultrasmedbio.2017.02.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/08/2017] [Accepted: 02/22/2017] [Indexed: 06/07/2023]
Abstract
The purpose of this study was to investigate whether low-intensity pulsed ultrasound (LIPUS) promotes exercise-induced muscle hypertrophy. Twenty-four adult Sprague-Dawley (SD) rats were randomly assigned to three groups (n = 8 per group): normal control group (NC), treadmill exercise group (TE) and treadmill exercise + LIPUS group (TE + LIPUS). The TE + LIPUS group received a LIPUS treatment (1 MHz, 30 mW/cm2) at the gastrocnemius for 20 min/d after treadmill exercise. The TE group was sham-treated. Eight weeks of treadmill training successfully established the exercise-induced muscle hypertrophy model. Muscle strength, muscle mass and muscle fiber cross-sectional area were significantly increased in the TE + LIPUS group compared with the TE group. Moreover, LIPUS treatment significantly upregulated the expression of Akt, mTOR, p-Akt and p-mTOR and significantly downregulated the expression of MSTN, ActRIIB, FoxO1 and its phosphorylation. The results indicated that LIPUS promotes exercise-induced muscle hypertrophy by facilitating protein synthesis and inhibiting the protein catabolism pathway.
Collapse
Affiliation(s)
- Liang Tang
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, China
| | - Jing Zhang
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, China
| | - Xinjuan Zhao
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, China
| | - Nan Li
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, China
| | - Wenqi Jian
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, China
| | - Shuxin Sun
- Department of Electronic Engineering, Fudan University, Shanghai, China
| | - Jianzhong Guo
- Shaanxi Key Laboratory of Ultrasonics, Shaanxi Normal University, Xi'an, China
| | - Lijun Sun
- Institute of Sports Biology, Shaanxi Normal University, Xi'an, China.
| | - Dean Ta
- Department of Electronic Engineering, Fudan University, Shanghai, China; State Key Laboratory of ASIC and System, Fudan University, Shanghai, China; Key Laboratory of Medical Imaging Computing and Computer Assisted Intervention (MICCAI) of Shanghai, Shanghai, China
| |
Collapse
|
28
|
Kim YJ, Lee J, Kang H, Jeon JY. Neurorestorative effect of erythropoietin and environmental enrichment in the early stage of stroke recovery. Anim Cells Syst (Seoul) 2016. [DOI: 10.1080/19768354.2016.1188854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
29
|
Sharma M, McFarlane C, Kambadur R, Kukreti H, Bonala S, Srinivasan S. Myostatin: expanding horizons. IUBMB Life 2015; 67:589-600. [PMID: 26305594 DOI: 10.1002/iub.1392] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 05/29/2015] [Indexed: 12/13/2022]
Abstract
Myostatin is a secreted growth and differentiation factor that belongs to the TGF-β superfamily. Myostatin is predominantly synthesized and expressed in skeletal muscle and thus exerts a huge impact on muscle growth and function. In keeping with its negative role in myogenesis, myostatin expression is tightly regulated at several levels including epigenetic, transcriptional, post-transcriptional, and post-translational. New revelations regarding myostatin regulation also offer mechanisms that could be exploited for developing myostatin antagonists. Increasingly, it is becoming clearer that besides its conventional role in muscle, myostatin plays a critical role in metabolism. Hence, molecular mechanisms by which myostatin regulates several key metabolic processes need to be further explored.
Collapse
Affiliation(s)
- Mridula Sharma
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
- Department of Cell & Molecular Biology, Brenner Centre for Molecular Medicine, Singapore Institute of Clinical Sciences (SICS), Singapore
| | - Craig McFarlane
- Department of Cell & Molecular Biology, Brenner Centre for Molecular Medicine, Singapore Institute of Clinical Sciences (SICS), Singapore
| | - Ravi Kambadur
- Department of Cell & Molecular Biology, Brenner Centre for Molecular Medicine, Singapore Institute of Clinical Sciences (SICS), Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore
| | - Himani Kukreti
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Sabeera Bonala
- Department of Cell & Molecular Biology, Brenner Centre for Molecular Medicine, Singapore Institute of Clinical Sciences (SICS), Singapore
| | - Shruti Srinivasan
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| |
Collapse
|
30
|
Jeon JW, Lee JI, Shin HP, Cha JM, Joo KR, Kim SH, Ko IG, Jin JJ, Kim SE, Kim CJ. Adenosine A2A-receptor agonist polydeoxyribonucleotide promotes gastric ulcer healing in Mongolian gerbils. Anim Cells Syst (Seoul) 2014. [DOI: 10.1080/19768354.2014.983968] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|