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Yokomichi H, Kondo K, Nagamine Y, Yamagata Z, Kondo N. Dementia risk by combinations of metabolic diseases and body mass index: Japan Gerontological Evaluation Study Cohort Study. J Diabetes Investig 2020; 11:206-215. [PMID: 31207179 PMCID: PMC6944839 DOI: 10.1111/jdi.13103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/31/2019] [Accepted: 06/13/2019] [Indexed: 01/01/2023] Open
Abstract
AIMS/INTRODUCTION To compare the dementia risk associated with pre-existing diabetes, hypertension, dyslipidemia, obesity (body mass index [BMI] ≥25 kg/m2 ) and underweight (BMI <18.5 kg/m2 ) among older adults. We also explored the dementia risk associated with combinations of metabolic diseases and BMI. MATERIALS AND METHODS We used data from the Japan Gerontological Evaluation Study. Participants completed a health checkup in 2010 and were followed for 5.8 years on average. Dementia was measured by municipal long-term care insurance registration. Diabetes, hypertension, dyslipidemia, obesity and underweight were diagnosed by medication use or health examination results. We calculated the incidence of dementia and adjusted hazard ratios (HRs). RESULTS Among 3,696 participating older adults, 338 developed dementia. Adjusted HRs (95% confidence intervals) in men and women (reference: those without corresponding disease of normal weight) were as follows: 2.22 (1.26-3.90) and 2.00 (1.07-3.74) for diabetes; 0.56 (0.29-1.10) and 1.05 (0.64-1.71) for hypertension; 1.30 (0.87-1.94) and 0.73 (0.49-1.08) for dyslipidemia; 0.73 (0.42-1.28) and 0.82 (0.49-1.37) for BMI of 25-29.9 kg/m2 ; and 1.04 (0.51-2.10) and 1.72 (1.05-2.81) for underweight. Dementia risk was significantly higher in underweight men with dyslipidemia (HR 4.15, 95% CI 1.79-9.63) compared with normal-weight men without dyslipidemia, and in underweight women with hypertension (HR 3.79, 1.55-9.28) compared with normal-weight women without hypertension. Dementia incidence was highest among underweight older adults with hypertension followed by dyslipidemia. CONCLUSIONS Among Japanese older adults, underweight and prevalent diabetes are risk factors for developing dementia. Lower BMI is also associated with a higher incidence of dementia.
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Affiliation(s)
| | - Katsunori Kondo
- Department of Social Preventive Medical SciencesCenter for Preventive Medical SciencesChiba UniversityChibaJapan
- Department of Gerontological EvaluationCenter for Gerontology and Social ScienceNational Center for Geriatrics and GerontologyAichiJapan
| | - Yuiko Nagamine
- Department of Social Preventive Medical SciencesCenter for Preventive Medical SciencesChiba UniversityChibaJapan
| | - Zentaro Yamagata
- Department of Health SciencesUniversity of YamanashiYamanashiJapan
| | - Naoki Kondo
- Department of Health Education and Health SociologySchool of Public HealthThe University of TokyoTokyoJapan
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152
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Chen ZX, Lu HB, Jin XL, Feng WF, Yang XN, Qi ZL. Skeletal muscle-derived cells repair peripheral nerve defects in mice. Neural Regen Res 2020; 15:152-161. [PMID: 31535664 PMCID: PMC6862419 DOI: 10.4103/1673-5374.264462] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Skeletal muscle-derived cells have strong secretory function, while skeletal muscle-derived stem cells, which are included in muscle-derived cells, can differentiate into Schwann cell-like cells and other cell types. However, the effect of muscle-derived cells on peripheral nerve defects has not been reported. In this study, 5-mm-long nerve defects were created in the right sciatic nerves of mice to construct a peripheral nerve defect model. Adult female C57BL/6 mice were randomly divided into four groups. For the muscle-derived cell group, muscle-derived cells were injected into the catheter after the cut nerve ends were bridged with a polyurethane catheter. For external oblique muscle-fabricated nerve conduit and polyurethane groups, an external oblique muscle-fabricated nerve conduit or polyurethane catheter was used to bridge the cut nerve ends, respectively. For the sham group, the sciatic nerves on the right side were separated but not excised. At 8 and 12 weeks post-surgery, distributions of axons and myelin sheaths were observed, and the nerve diameter was calculated using immunofluorescence staining. The number, diameter, and thickness of myelinated nerve fibers were detected by toluidine blue staining and transmission electron microscopy. Muscle fiber area ratios were calculated by Masson’s trichrome staining of gastrocnemius muscle sections. Sciatic functional index was recorded using walking footprint analysis at 4, 8, and 12 weeks after operation. The results showed that, at 8 and 12 weeks after surgery, myelin sheaths and axons of regenerating nerves were evenly distributed in the muscle-derived cell group. The number, diameter, and myelin sheath thickness of myelinated nerve fibers, as well as gastrocnemius muscle wet weight and muscle area ratio, were significantly higher in the muscle-derived cell group compared with the polyurethane group. At 4, 8, and 12 weeks post-surgery, sciatic functional index was notably increased in the muscle-derived cell group compared with the polyurethane group. These criteria of the muscle-derived cell group were not significantly different from the external oblique muscle-fabricated nerve conduit group. Collectively, these data suggest that muscle-derived cells effectively accelerated peripheral nerve regeneration. This study was approved by the Animal Ethics Committee of Plastic Surgery Hospital, Chinese Academy of Medical Sciences (approval No. 040) on September 28, 2016.
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Affiliation(s)
- Zi-Xiang Chen
- The 16th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - Hai-Bin Lu
- The 16th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - Xiao-Lei Jin
- The 16th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - Wei-Feng Feng
- Yu Tian Cheng Plastic Surgery Clinic, Shanghai, China
| | - Xiao-Nan Yang
- The 16th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - Zuo-Liang Qi
- The 16th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
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153
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Huang J, Wang K, Shiflett LA, Brotto L, Bonewald LF, Wacker MJ, Dallas SL, Brotto M. Fibroblast growth factor 9 (FGF9) inhibits myogenic differentiation of C2C12 and human muscle cells. Cell Cycle 2019; 18:3562-3580. [PMID: 31735119 PMCID: PMC6927711 DOI: 10.1080/15384101.2019.1691796] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Osteoporosis and sarcopenia (osteosarcopenia (OS)) are twin-aging diseases. The biochemical crosstalk between muscle and bone seems to play a role in OS. We have previously shown that osteocytes produce soluble factors with beneficial effects on muscle and vice versa. Recently, enhanced FGF9 production was observed in the OmGFP66 osteogenic cell line. To test its role in myogenic differentiation, C2C12 myoblasts were treated with recombinant FGF9. FGF9 as low as 10 ng/mL inhibited myogenic differentiation, suggesting that FGF9 might be a potential inhibitory factor produced from bone cells with effects on muscle cells. FGF9 (10–50 ng/mL) significantly decreased mRNA expression of MyoG and Mhc while increasing the expression of Myostatin. Consistent with the phenotype, RT-qPCR array revealed that FGF9 (10 ng/mL) increased the expression of Icam1 while decreased the expression of Wnt1 and Wnt6 decreased, respectively. FGF9 decreased caffeine-induced Ca2+ release from the sarcoplasmic reticulum (SR) of C2C12 myotubes and reduced the expression of genes (i.e. Cacna1s, RyR2, Naftc3) directly associated with intracellular Ca2+ homeostasis. Myogenic differentiation in human skeletal muscle cells was similarly inhibited by FGF9 but required higher doses of 200 ng/mL FGF9. FGF9 was also shown to stimulate C2C12 myoblast proliferation. FGF2 and the FGF9 subfamily members FGF16 and FGF20 also inhibited C2C12 myoblast differentiation and enhanced proliferation. Intriguingly, the differentiation inhibition was independent of proliferation enhancement. These findings suggest that FGF9 may modulate myogenesis via a complex signaling mechanism.
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Affiliation(s)
- Jian Huang
- Bone-Muscle Research Center, College of Nursing & Health Innovation, the University of Texas at Arlington, Arlington, TX, USA
| | - Kun Wang
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Lora A Shiflett
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Leticia Brotto
- Bone-Muscle Research Center, College of Nursing & Health Innovation, the University of Texas at Arlington, Arlington, TX, USA
| | - Lynda F Bonewald
- Indiana Center for Musculoskeletal Health, School of Medicine, Indiana University, Indianapolis, IN USA
| | - Michael J Wacker
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Sarah L Dallas
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing & Health Innovation, the University of Texas at Arlington, Arlington, TX, USA
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154
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Adipose Tissue Quality in Aging: How Structural and Functional Aspects of Adipose Tissue Impact Skeletal Muscle Quality. Nutrients 2019; 11:nu11112553. [PMID: 31652734 PMCID: PMC6893709 DOI: 10.3390/nu11112553] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 12/20/2022] Open
Abstract
The interplay between adipose tissue and skeletal muscle and the impact on mobility and aging remain enigmatic. The progressive decline in mobility promoted by aging has been previously attributed to the loss of skeletal mass and function and more recently linked to changes in body fat composition and quantity. Regardless of body size, visceral and intermuscular adipose depots increase with aging and are associated with adverse health outcomes. However, the quality of adipose tissue, in particular abdominal subcutaneous as it is the largest depot, likely plays a significant role in aging outcomes, such as mobility decline, though its communication with other tissues such as skeletal muscle. In this review, we discuss the age-associated development of a pro-inflammatory profile, cellular senescence, and metabolic inflexibility in abdominal subcutaneous adipose tissue. Collectively, these facets of adipose tissue quality influence its secretory profile and crosstalk with skeletal muscle and likely contribute to the development of muscle atrophy and disability. Therefore, the identification of the key structural and functional components of adipose tissue quality—including necrosis, senescence, inflammation, self-renewal, metabolic flexibility—and adipose tissue-secreted proteins that influence mobility via direct effects on skeletal muscle are necessary to prevent morbidity/mortality in the aging population.
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155
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Kolka CM. The vascular endothelium plays a role in insulin action. Clin Exp Pharmacol Physiol 2019; 47:168-175. [PMID: 31479553 DOI: 10.1111/1440-1681.13171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/23/2019] [Accepted: 08/27/2019] [Indexed: 12/30/2022]
Abstract
The endocrine system relies on the vasculature for delivery of hormones throughout the body, and the capillary microvasculature is the site where the hormones cross from the blood into the target tissue. Once considered an inert wall, various studies have now highlighted the functions of the capillary endothelium to regulate transport and therefore affect or maintain the interstitial environment. The role of the capillary may be clear in areas where there is a continuous endothelium, yet there also appears to be a role of endothelial cells in tissues with a sinusoidal structure. Here we focused on the most common endocrine disorder, diabetes, and several of the target organs associated with the disease, including skeletal muscle, liver and pancreas. However, it is important to note that the ability of hormones to cross the endothelium to reach their target tissue is a component of all endocrine functions. It is also a consideration in organs throughout the body and may have greater impact for larger hormones with target tissues containing a continuous endothelium. We noted that the blood levels do not always equal interstitial levels, which is what the cells are exposed to, and discussed how this may change in diseases such as obesity and insulin resistance. The capillary endothelium is, therefore, an essential and understudied aspect of endocrinology and metabolism that can be altered in disease, which may be an appropriate target for treatment.
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Affiliation(s)
- Cathryn M Kolka
- Department of Biomedical Science, Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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156
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Sajoux I, Lorenzo PM, Gomez-Arbelaez D, Zulet MA, Abete I, Castro AI, Baltar J, Portillo MP, Tinahones FJ, Martinez JA, Crujeiras AB, Casanueva FF. Effect of a Very-Low-Calorie Ketogenic Diet on Circulating Myokine Levels Compared with the Effect of Bariatric Surgery or a Low-Calorie Diet in Patients with Obesity. Nutrients 2019; 11:nu11102368. [PMID: 31590286 PMCID: PMC6835835 DOI: 10.3390/nu11102368] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 09/03/2019] [Accepted: 09/24/2019] [Indexed: 12/14/2022] Open
Abstract
: The preservation of muscle mass and muscle function after weight loss therapy is currently a considerable challenge in the fight against obesity. Muscle mass secretes proteins called myokines that have relevant functions in the regulation of metabolism and health. This study was aimed to evaluate whether a very low-calorie ketogenic (VLCK) diet may modulate myokine levels, in addition to changes in body composition, compared to a standard, balanced low-calorie (LC) diet or bariatric surgery in patients with obesity. Body composition, ketosis, insulin sensitivity and myokines were evaluated in 79 patients with overweight/obesity after a therapy to lose weight with a VLCK diet, a LC diet or bariatric surgery. The follow-up was 6 months. The weight loss therapies induced changes in myokine levels in association with changes in body composition and biochemical parameters. The effects on circulating myokine levels compared to those at baseline were stronger after the VLCK diet than LC diet or bariatric surgery. Differences reached statistical significance for IL-8, MMP2 and irisin. In conclusion, nutritional interventions or bariatric surgery to lose weight induces changes in circulating myokine levels, being this effect potentially most notable after following a VLCK diet.
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Affiliation(s)
- Ignacio Sajoux
- Division of Endocrinology, Department of Medicine, Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), Instituto de Investigacion Sanitaria de Santiago (IDIS), 15706 Santiago de Compostela, Spain.
- Medical Department Pronokal, Protein Supplies SL, Barcelona 08009, Spain.
| | - Paula M Lorenzo
- Division of Endocrinology, Department of Medicine, Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), Instituto de Investigacion Sanitaria de Santiago (IDIS), 15706 Santiago de Compostela, Spain.
| | - Diego Gomez-Arbelaez
- Division of Endocrinology, Department of Medicine, Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), Instituto de Investigacion Sanitaria de Santiago (IDIS), 15706 Santiago de Compostela, Spain.
- Faculty of Health Sciences, University of Santander (UDES), 680003 Bucaramanga, Colombia.
| | - M Angeles Zulet
- Department of Nutrition, Food Science and Physiology, Centre for Nutrition Research, University of Navarra (UNAV) and IdiSNA, Navarra Institute for Health Research, 31009 Pamplona, Spain.
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Itziar Abete
- Department of Nutrition, Food Science and Physiology, Centre for Nutrition Research, University of Navarra (UNAV) and IdiSNA, Navarra Institute for Health Research, 31009 Pamplona, Spain.
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Ana I Castro
- Division of Endocrinology, Department of Medicine, Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), Instituto de Investigacion Sanitaria de Santiago (IDIS), 15706 Santiago de Compostela, Spain.
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Javier Baltar
- Division of General Surgery, Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), 15706 Santiago de Compostela, Spain.
| | - María P Portillo
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Research Institute, 01005 Vitoria, Spain.
| | - Francisco J Tinahones
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, |29010 Málaga, Spain.
| | - J Alfredo Martinez
- Department of Nutrition, Food Science and Physiology, Centre for Nutrition Research, University of Navarra (UNAV) and IdiSNA, Navarra Institute for Health Research, 31009 Pamplona, Spain.
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
- Program for Precision Nutrition, IMDEA, 28049 Madrid, Spain.
| | - Ana B Crujeiras
- Division of Endocrinology, Department of Medicine, Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), Instituto de Investigacion Sanitaria de Santiago (IDIS), 15706 Santiago de Compostela, Spain.
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
- Laboratory of Epigenomics in Endocrinology and Nutrition, Instituto de Investigacion Sanitaria (IDIS), Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), 15706 Santiago de Compostela, Spain.
| | - Felipe F Casanueva
- Division of Endocrinology, Department of Medicine, Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), Instituto de Investigacion Sanitaria de Santiago (IDIS), 15706 Santiago de Compostela, Spain.
- CIBER de Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
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157
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Lima TRL, Almeida VP, Ferreira AS, Guimarães FS, Lopes AJ. Handgrip Strength and Pulmonary Disease in the Elderly: What is the Link? Aging Dis 2019; 10:1109-1129. [PMID: 31595206 PMCID: PMC6764733 DOI: 10.14336/ad.2018.1226] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 12/26/2018] [Indexed: 12/15/2022] Open
Abstract
Societies in developed countries are aging at an unprecedented rate. Considering that aging is the most significant risk factor for many chronic lung diseases (CLDs), understanding this process may facilitate the development of new interventionist approaches. Skeletal muscle dysfunction is a serious problem in older adults with CLDs, reducing their quality of life and survival. In this study, we reviewed the possible links between handgrip strength (HGS)—a simple, noninvasive, low-cost measure of muscle function—and CLDs in the elderly. Different mechanisms appear to be involved in this association, including systemic inflammation, chronic hypoxemia, physical inactivity, malnutrition, and corticosteroid use. Respiratory and peripheral myopathy, associated with muscle atrophy and a shift in muscle fiber type, also seem to be major etiological contributors to CLDs. Moreover, sarcopenic obesity, which occurs in older adults with CLDs, impairs common inflammatory pathways that can potentiate each other and further accelerate the functional decline of HGS. Our findings support the concept that the systemic effects of CLDs may be determined by HGS, and HGS is a relevant measurement that should be considered in the clinical assessment of the elderly with CLDs. These reasons make HGS a useful practical tool for indirectly evaluating functional status in the elderly. At present, early muscle reconditioning and optimal nutrition appear to be the most effective approaches to reduce the impact of CLDs and low muscle strength on the quality of life of these individuals. Nonetheless, larger in-depth studies are needed to evaluate the link between HGS and CLDs.
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Affiliation(s)
- Tatiana Rafaela Lemos Lima
- 1Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Bonsucesso, 21041-010, Rio de Janeiro, Brazil
| | - Vívian Pinto Almeida
- 1Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Bonsucesso, 21041-010, Rio de Janeiro, Brazil
| | - Arthur Sá Ferreira
- 1Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Bonsucesso, 21041-010, Rio de Janeiro, Brazil
| | - Fernando Silva Guimarães
- 1Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Bonsucesso, 21041-010, Rio de Janeiro, Brazil
| | - Agnaldo José Lopes
- 1Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Bonsucesso, 21041-010, Rio de Janeiro, Brazil.,2Post-graduate Program in Medical Sciences, School of Medical Sciences, State University of Rio de Janeiro (UERJ), Vila Isabel, 20550-170, Rio de Janeiro, Brazil
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158
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Jin J, Bakker AD, Wu G, Klein-Nulend J, Jaspers RT. Physicochemical Niche Conditions and Mechanosensing by Osteocytes and Myocytes. Curr Osteoporos Rep 2019; 17:235-249. [PMID: 31428977 PMCID: PMC6817749 DOI: 10.1007/s11914-019-00522-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW Bone and muscle mass increase in response to mechanical loading and biochemical cues. Bone-forming osteoblasts differentiate into early osteocytes which ultimately mature into late osteocytes encapsulated in stiff calcified matrix. Increased muscle mass originates from muscle stem cells (MuSCs) enclosed between their plasma membrane and basal lamina. Stem cell fate and function are strongly determined by physical and chemical properties of their microenvironment, i.e., the cell niche. RECENT FINDINGS The cellular niche is a three-dimensional structure consisting of extracellular matrix components, signaling molecules, and/or other cells. Via mechanical interaction with their niche, osteocytes and MuSCs are subjected to mechanical loads causing deformations of membrane, cytoskeleton, and/or nucleus, which elicit biochemical responses and secretion of signaling molecules into the niche. The latter may modulate metabolism, morphology, and mechanosensitivity of the secreting cells, or signal to neighboring cells and cells at a distance. Little is known about how mechanical loading of bone and muscle tissue affects osteocytes and MuSCs within their niches. This review provides an overview of physicochemical niche conditions of (early) osteocytes and MuSCs and how these are sensed and determine cell fate and function. Moreover, we discuss how state-of-the-art imaging techniques may enhance our understanding of these conditions and mechanisms.
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Affiliation(s)
- Jianfeng Jin
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Astrid D Bakker
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Richard T Jaspers
- Laboratory for Myology, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, De Boelelaan 1108, 1081 HZ, Amsterdam, The Netherlands.
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159
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Kwak MK, Kim BJ, Kim JS, Lee SH, Koh JM. The Local and Systemic Interactions Between Muscle and Bone in Postmenopausal Korean Women. Calcif Tissue Int 2019; 105:373-382. [PMID: 31346666 DOI: 10.1007/s00223-019-00585-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 07/09/2019] [Indexed: 10/26/2022]
Abstract
Despite many studies about local and systemic interactions between bone and muscle, the more dominant interaction remains unclear. We aimed to compare the association of skeletal muscle mass with bone mineral density (BMD) at the femur, which seemed more likely affected by local interaction, and the association of skeletal muscle mass with BMD at the lumbar spine (LS-BMD) and the trabecular bone score (TBS), which seemed more likely affected by systemic interaction. In 279 women, we measured the femoral neck BMD (FN-BMD), total hip BMD (TH-BMD), LS-BMD, and TBS. Appendicular skeletal muscle mass (ASM), lean mass (LM), and other LM (OLM; remaining LM excluding ASM) were measured using bioelectrical impedance analysis. ASM (β = 0.008-0.014, p < 0.001-0.014), OLM (β = 0.006-0.011, p < 0.001-0.044), and LM (β = 0.004-0.007, p < 0.001-0.020) were positively associated with FN-BMD and TH-BMD, but not with LS-BMD or TBS. The positive association of ASM, but not of OLM, was stronger than that of LM (p = 0.023). Odd ratios (ORs) with 95% confidence intervals (95% CIs) for osteoporosis were statistically significant for ASM (OR 0.74, 95% CI 0.59-0.93) and marginally significant for OLM (OR 0.80, 95% CI 0.64-1.01) in the femur, but not in the LS. The direct and indirect (through OLM) effects of ASM on BMD were 69.1-72.2% and 27.8-30.9%, respectively. In the conclusion, ASM was more positively associated with FN-BMD, but not with LS-BMD and TBS, than OLM. This suggests stronger effects of local interaction than systemic interaction between muscle and bone.
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Affiliation(s)
- Mi Kyung Kwak
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Division of Endocrinology and Metabolism, Hallym University Dongtan Sacred Heart Hospital, Hwaseong-si, Republic of Korea
| | - Beom-Jun Kim
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Jae Seung Kim
- Division of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Seung Hun Lee
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
| | - Jung-Min Koh
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
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160
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Nielsen MH, Sabaratnam R, Pedersen AJT, Højlund K, Handberg A. Acute Exercise Increases Plasma Levels of Muscle-Derived Microvesicles Carrying Fatty Acid Transport Proteins. J Clin Endocrinol Metab 2019; 104:4804-4814. [PMID: 30933285 DOI: 10.1210/jc.2018-02547] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/26/2019] [Indexed: 02/03/2023]
Abstract
CONTEXT Microvesicles (MVs) are a class of membrane particles shed by any cell in the body in physiological and pathological conditions. They are considered to be key players in intercellular communication, and with a molecular content reflecting the composition of the cell of origin, they have recently emerged as a promising source of biomarkers in a number of diseases. OBJECTIVE The effects of acute exercise on the plasma concentration of skeletal muscle-derived MVs (SkMVs) carrying metabolically important membrane proteins were examined. PARTICIPANTS Thirteen men with obesity and type 2 diabetes mellitus (T2DM) and 14 healthy male controls with obesity exercised on a cycle ergometer for 60 minutes. INTERVENTIONS Muscle biopsies and blood samples-obtained before exercise, immediately after exercise, and 3 hours into recovery-were collected for the analysis of long-chain fatty acid (LCFA) transport proteins CD36 (a scavenger receptor class B protein) and fatty acid transport protein 4 (FATP4) mRNA content in muscle and for flow cytometric studies on circulating SkMVs carrying either LCFA transport protein. RESULTS Besides establishing a flow cytometric approach for the detection of circulating SkMVs and subpopulations carrying either CD36 or FATP4 and thereby adding proof to their existence, we demonstrated an overall exercise-induced change of SkMVs carrying these LCFA transport proteins. A positive correlation between exercise-induced changes in skeletal muscle CD36 mRNA expression and concentrations of SkMVs carrying CD36 was found in T2DM only. CONCLUSIONS This approach could add important real-time information about the abundance of LCFA transport proteins present on activated muscle cells in subjects with impaired glucose metabolism.
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Affiliation(s)
| | - Rugivan Sabaratnam
- Steno Diabetes Center Odense, Odense University Hospital, Odense, Denmark
- Section of Molecular Diabetes and Metabolism, Institute of Molecular Medicine and Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Andreas James Thestrup Pedersen
- Steno Diabetes Center Odense, Odense University Hospital, Odense, Denmark
- Section of Molecular Diabetes and Metabolism, Institute of Molecular Medicine and Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Kurt Højlund
- Steno Diabetes Center Odense, Odense University Hospital, Odense, Denmark
- Section of Molecular Diabetes and Metabolism, Institute of Molecular Medicine and Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Aase Handberg
- Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
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161
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Abstract
Studies have linked obesity, metabolic syndrome, type 2 diabetes, cardiovascular disease (CVD), nonalcoholic fatty liver disease (NAFLD) and dementia. Their relationship to the incidence and progression of these disease states suggests an interconnected pathogenesis involving chronic low-grade inflammation and oxidative stress. Metabolic syndrome represents comorbidities of central obesity, insulin resistance, dyslipidemia, hypertension and hyperglycemia associated with increased risk of type 2 diabetes, NAFLD, atherosclerotic CVD and neurodegenerative disease. As the socioeconomic burden for these diseases has grown signficantly with an increasing elderly population, new and alternative pharmacologic solutions for these cardiometabolic diseases are required. Adipose tissue, skeletal muscle and liver are central endocrine organs that regulate inflammation, energy and metabolic homeostasis, and the neuroendocrine axis through synthesis and secretion of adipokines, myokines, and hepatokines, respectively. These organokines affect each other and communicate through various endocrine, paracrine and autocrine pathways. The ultimate goal of this review is to provide a comprehensive understanding of organ crosstalk. This will include the roles of novel organokines in normal physiologic regulation and their pathophysiological effect in obesity, metabolic syndrome, type 2 diabetes, CVD, NAFLD and neurodegenerative disorders.
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Affiliation(s)
- Hye Soo Chung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University, Seoul, South Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, South Korea.
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162
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Sparc, an EPS-induced gene, modulates the extracellular matrix and mitochondrial function via ILK/AMPK pathways in C2C12 cells. Life Sci 2019; 229:277-287. [DOI: 10.1016/j.lfs.2019.05.070] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 01/06/2023]
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163
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Clark A, Huebinger RM, Carlson DL, Wolf SE, Song J. Serum Level of Musclin Is Elevated Following Severe Burn. J Burn Care Res 2019; 40:535-540. [DOI: 10.1093/jbcr/irz101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Abstract
Muscle wasting induced by severe burn worsens clinical outcomes is associated with hyperglycemia. A novel muscle-specific secretory factor, musclin, was reported to regulate glucose metabolism with a homologous sequence of natriuretic peptides. The purpose of the study was to investigate musclin expression in response to burn injury in both human and animal models. Serum was collected from 13 adult burn patients and circulating levels of musclin protein were measured via elisa. The cytokine profile was measured by Bio-Plex multiple immunoassay. Following the clinical study, we used a burn rat model with 40% TBSA to study the time course of musclin expression till day 14. Rat serum and muscle tissue sample were harvested. Finally, an in vitro study was applied to investigate whether the muscle cell C2C12 myoblast expressed musclin under 10% burn serum stimulation. Pearson analysis showed that there was a significant positive correlation of musclin expression to total body surface area of burn in patients (P &= .038). Musclin expression was significantly positively correlated with IL-4, IL-7, IL-12, and IL-13 in burn patients’ serum (P < .05). In the animal study, we found that the musclin level evaluated at 6 hours and 1 day in burn rat serum (P < .05). In vitro, musclin mRNA expression significantly increased with burn serum stimulation at 24 hours (P < .05). In conclusion, serum level of musclin elevated both in human patients and burn animals; musclin was correlated with the severity of burn injury as well as with an elevated cytokine profile in patients; burn serum-stimulated musclin expression in vitro further identified the resource of musclin expression after burn.
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Affiliation(s)
- Audra Clark
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Ryan M Huebinger
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Deborah L Carlson
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Steven E Wolf
- Department of Surgery, University of Texas Medical Branch, and Shriners Hospitals for Children, Galveston, Texas
| | - Juquan Song
- Department of Surgery, University of Texas Medical Branch, and Shriners Hospitals for Children, Galveston, Texas
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164
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Pinckard K, Baskin KK, Stanford KI. Effects of Exercise to Improve Cardiovascular Health. Front Cardiovasc Med 2019; 6:69. [PMID: 31214598 PMCID: PMC6557987 DOI: 10.3389/fcvm.2019.00069] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 05/07/2019] [Indexed: 12/18/2022] Open
Abstract
Obesity is a complex disease that affects whole body metabolism and is associated with an increased risk of cardiovascular disease (CVD) and Type 2 diabetes (T2D). Physical exercise results in numerous health benefits and is an important tool to combat obesity and its co-morbidities, including cardiovascular disease. Exercise prevents both the onset and development of cardiovascular disease and is an important therapeutic tool to improve outcomes for patients with cardiovascular disease. Some benefits of exercise include enhanced mitochondrial function, restoration and improvement of vasculature, and the release of myokines from skeletal muscle that preserve or augment cardiovascular function. In this review we will discuss the mechanisms through which exercise promotes cardiovascular health.
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Affiliation(s)
| | | | - Kristin I. Stanford
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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165
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Li G, Zhang L, Wang D, AIQudsy L, Jiang JX, Xu H, Shang P. Muscle-bone crosstalk and potential therapies for sarco-osteoporosis. J Cell Biochem 2019; 120:14262-14273. [PMID: 31106446 DOI: 10.1002/jcb.28946] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/15/2019] [Accepted: 04/18/2019] [Indexed: 12/17/2022]
Abstract
The nature of muscle-bone crosstalk has been historically considered to be only mechanical, where the muscle is the load applier while bone provides the attachment sites. However, this dogma has been challenged with the emerging notion that bone and muscle act as secretory endocrine organs affect the function of each other. Biochemical crosstalk occurs through myokines such as myostatin, irisin, interleukin (IL)-6, IL-7, IL-15, insulin-like growth factor-1, fibroblast growth factor (FGF)-2, and β-aminoisobutyric acid and through bone-derived factors including FGF23, prostaglandin E2 , transforming growth factor β, osteocalcin, and sclerostin. Aside from the biochemical and mechanical interaction, additional factors including aging, circadian rhythm, nervous system network, nutrition intake, and exosomes also have effects on bone-muscle crosstalk. Here, we summarize the current research progress in the area, which may be conductive to identify potential novel therapies for the osteoporosis and sarcopenia, especially when they develop in parallel.
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Affiliation(s)
- GuoBin Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Lan Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - DongEn Wang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Luban AIQudsy
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Jean X Jiang
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, Texas
| | - HuiYun Xu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Peng Shang
- Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen, Guangdong, China
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166
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Tart Cherry Concentrate Does Not Alter the Gut Microbiome, Glycaemic Control or Systemic Inflammation in a Middle-Aged Population. Nutrients 2019; 11:nu11051063. [PMID: 31085979 PMCID: PMC6567170 DOI: 10.3390/nu11051063] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/02/2019] [Accepted: 05/07/2019] [Indexed: 11/16/2022] Open
Abstract
Limited evidence suggests that the consumption of polyphenols may improve glycaemic control and insulin sensitivity. The gut microbiome produces phenolic metabolites and increases their bioavailability. A handful of studies have suggested that polyphenol consumption alters gut microbiome composition. There are no data available investigating such effects in polyphenol-rich Montmorency cherry (MC) supplementation. A total of 28 participants (aged 40-60 years) were randomized to receive daily MC or glucose and energy-matched placebo supplementation for 4 wk. Faecal and blood samples were obtained at baseline and at 4 wk. There was no clear effect of supplementation on glucose handling (Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) and Gutt indices), although the Matsuda index decreased significantly in the MC group post-supplementation, reflecting an increase in serum insulin concentration. Contrastingly, placebo, but not MC supplementation induced a 6% increase in the Oral Glucose Insulin Sensitivity (OGIS) estimate of glucose clearance. Serum IL-6 and C reactive protein were unaltered by either supplement. The faecal bacterial microbiome was sequenced; species richness and diversity were unchanged by MC or placebo and no significant correlation existed between changes in Bacteroides and Faecalibacterium abundance and any index of insulin sensitivity. Therefore, 4 weeks of MC supplementation did not alter the gut microbiome, glycaemic control or systemic concentrations of IL-6 and CRP in a middle-aged population.
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167
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Milewska M, Domoradzki T, Majewska A, Błaszczyk M, Gajewska M, Hulanicka M, Ciecierska A, Grzelkowska-Kowalczyk K. Interleukin-8 enhances myocilin expression, Akt-FoxO3 signaling and myogenic differentiation in rat skeletal muscle cells. J Cell Physiol 2019; 234:19675-19690. [PMID: 30945300 DOI: 10.1002/jcp.28568] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 01/01/2023]
Abstract
Interleukin (IL)-8 is released both in visceral adipose tissue and in contracting skeletal muscles. In this study, we examined cellular pathways associated with muscle hypertrophy, chosen on the basis of microRNA profiling, in differentiating rat primary skeletal muscle cells (RSkMC) treated with IL-8 (1 ng/ml) for 11 days. IL-8 increased myocilin expression, Akt phosphorylation, FoxO3 dispersion throughout the cytoplasm, and reduced FoxO3 level. IL-8 decreased the expression of atrogin and MuRF1 and increased myotube length and diameter. We concluded that IL-8 present in extracellular environment of myoblasts induced to differentiation stimulates expression of myocilin, a protein important for skeletal muscle hypertrophy. This phenomenon was associated with: (a) activation of myogenic transcription, (b) increased phosphorylation and activation of PKB/Akt, leading to (c) cytoplasm distribution and degradation of a transcription factor FoxO3, (d) decreased expression of gene markers of proteolysis, atrogin and Murf1, and (e) increased myotube length and diameter. In this regard, IL-8 affects skeletal muscle cells similarly to IGF-I and can be considered as a potent anticatabolic factor for skeletal muscle.
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Affiliation(s)
- Marta Milewska
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Tomasz Domoradzki
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Alicja Majewska
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Maciej Błaszczyk
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Małgorzata Gajewska
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Magdalena Hulanicka
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Anna Ciecierska
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Katarzyna Grzelkowska-Kowalczyk
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
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168
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Algaidi SA, Eldomiaty MA, Elbastwisy YM, Almasry SM, Desouky MK, Elnaggar AM. Effect of voluntary running on expression of myokines in brains of rats with depression. Int J Immunopathol Pharmacol 2019; 33:2058738419833533. [PMID: 30834799 PMCID: PMC6407323 DOI: 10.1177/2058738419833533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This study aimed to demonstrate the histopathology and immunoexpression of exercise-derived myokines in dentate gyrus (DG), medial prefrontal cortex (mPFC) and cerebellum of depressed Wistar rats during depression and after practising voluntary running. Depression was developed by forced swimming for 2 weeks. Voluntary running was performed by voluntary running for 3 weeks. Brain sections were processed and immunostained to detect brain-derived neurotrophic factor (BDNF), macrophage migration inhibitory factor (MIF), vascular endothelial growth factor (VEGF) and interleukin-6 (IL-6). ImageJ software was used to measure the optical density (OD). BDNF was expressed in neurons in DG, mPFC and granular and Purkinje cells in cerebellum. MIF was expressed in neurons of sub-granular zone in DG, mPFC and Purkinje cells. VEGF was expressed in many neurons in DG, mPFC and Purkinje cells. IL-6 was expressed in some neurons in DG, in neuropil of mPFC and in Purkinje cells. In depression, the OD of studied myokines significantly decreased in all examined areas. After voluntary running, the OD of myokines significantly increased in all areas. This study defines the immunohistochemical expression of myokines in brain areas in depression and after voluntary running and reveals the involvement of the mPFC and cerebellum in the pathophysiology of depression.
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Affiliation(s)
- Sami A Algaidi
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia
| | - Magda A Eldomiaty
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,2 Department of Anatomy, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Yasser M Elbastwisy
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,3 Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Shaima M Almasry
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,3 Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Maha K Desouky
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,4 Department of Anatomy, Faculty of Medicine, Minia University, Minia, Egypt
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169
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Bonewald L. Use it or lose it to age: A review of bone and muscle communication. Bone 2019; 120:212-218. [PMID: 30408611 PMCID: PMC6360108 DOI: 10.1016/j.bone.2018.11.002] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/03/2018] [Accepted: 11/03/2018] [Indexed: 12/21/2022]
Abstract
Until recently, it was assumed that the only interaction between muscle and bone is mechanical, that the muscle acts as a pulley and the bone as a lever to move the organism. A relatively new concept is that muscle, especially contracted muscle, acts as a secretory organ, regulating metabolism. An even newer concept is that bone, especially the osteocytes in bone, act as endocrine cells targeting other organs such as kidney and more recently, muscle. These two new concepts logically led to the third concept: that muscle and bone communicate via soluble factors. Crosstalk occurs through muscle factors such as myostatin, irisin, and a muscle metabolite, β-aminoisobutyric acid, BAIBA, and through bone factors such as osteocalcin, transforming growth factor beta, TGFβ, Prostaglandin E2, PGE2 and Wnts. Some of these factors have positive and some negative effects on the opposing tissue. One feature both bone and muscle have in common is that their tissues are mechanically loaded and many of their secreted factors are regulated by load. This mechanical loading, also known as exercise, has beneficial effects on many systems leading to the hypothesis that muscle and bone factors can be responsible for the beneficial effects of exercise. Many of the characteristics of aging and diseases associated with aging such as sarcopenia and osteoporosis and neurological conditions such as Alzheimer's disease and dementia, are delayed by exercise. This beneficial effect has been ascribed to increased blood flow increasing oxygen and nutrients, but could also be due to the secretome of the musculoskeletal system as outlined in this review.
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170
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Tanianskii DA, Jarzebska N, Birkenfeld AL, O'Sullivan JF, Rodionov RN. Beta-Aminoisobutyric Acid as a Novel Regulator of Carbohydrate and Lipid Metabolism. Nutrients 2019; 11:E524. [PMID: 30823446 PMCID: PMC6470580 DOI: 10.3390/nu11030524] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 01/04/2023] Open
Abstract
The prevalence and incidence of metabolic syndrome is reaching pandemic proportions worldwide, thus warranting an intensive search for novel preventive and treatment strategies. Recent studies have identified a number of soluble factors secreted by adipocytes and myocytes (adipo-/myokines), which link sedentary life style, abdominal obesity, and impairments in carbohydrate and lipid metabolism. In this review, we discuss the metabolic roles of the recently discovered myokine β-aminoisobutyric acid (BAIBA), which is produced by skeletal muscle during physical activity. In addition to physical activity, the circulating levels of BAIBA are controlled by the mitochondrial enzyme alanine: glyoxylate aminotransferase 2 (AGXT2), which is primarily expressed in the liver and kidneys. Recent studies have shown that BAIBA can protect from diet-induced obesity in animal models. It induces transition of white adipose tissue to a "beige" phenotype, which induces fatty acids oxidation and increases insulin sensitivity. While the exact mechanisms of BAIBA-induced metabolic effects are still not well understood, we discuss some of the proposed pathways. The reviewed data provide new insights into the connection between physical activity and energy metabolism and suggest that BAIBA might be a potential novel drug for treatment of the metabolic syndrome and its cardiovascular complications.
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Affiliation(s)
- Dmitrii A Tanianskii
- Department of Biochemistry, Institute of Experimental Medicine, Acad. Pavlov St., 12, 197376 St. Petersburg, Russia.
- Department of Fundamental Medicine and Medical Technology, St.Petersburg State University, 8 liter A, 21st Line V.O., 199034 St. Petersburg, Russia.
| | - Natalia Jarzebska
- University Center for Vascular Medicine, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany.
| | - Andreas L Birkenfeld
- Medical Clinic III, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany.
| | - John F O'Sullivan
- Medical Clinic III, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany.
- Charles Perkins Centre and Heart Research Institute, The University of Sydney, 7 Eliza St, Newtown NSW, Sydney 2042, Australia.
| | - Roman N Rodionov
- University Center for Vascular Medicine, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany.
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171
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Rubio-Ruiz ME, Guarner-Lans V, Pérez-Torres I, Soto ME. Mechanisms Underlying Metabolic Syndrome-Related Sarcopenia and Possible Therapeutic Measures. Int J Mol Sci 2019; 20:ijms20030647. [PMID: 30717377 PMCID: PMC6387003 DOI: 10.3390/ijms20030647] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 01/30/2019] [Accepted: 01/30/2019] [Indexed: 12/15/2022] Open
Abstract
Although there are several reviews that report the interrelationship between sarcopenia and obesity and insulin resistance, the relation between sarcopenia and the other signs that compose the metabolic syndrome (MetS) has not been extensively revised. Here, we review the mechanisms underlying MetS-related sarcopenia and discuss the possible therapeutic measures proposed. A vicious cycle between the loss of muscle and the accumulation of intramuscular fat might be associated with MetS via a complex interplay of factors including nutritional intake, physical activity, body fat, oxidative stress, proinflammatory cytokines, insulin resistance, hormonal changes, and mitochondrial dysfunction. The enormous differences in lipid storage capacities between the two genders and elevated amounts of endogenous fat having lipotoxic effects that lead to the loss of muscle mass are discussed. The important repercussions of MetS-related sarcopenia on other illnesses that lead to increased disability, morbidity, and mortality are also addressed. Additional research is needed to better understand the pathophysiology of MetS-related sarcopenia and its consequences. Although there is currently no consensus on the treatment, lifestyle changes including diet and power exercise seem to be the best options.
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Affiliation(s)
- María Esther Rubio-Ruiz
- Department of Physiology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Verónica Guarner-Lans
- Department of Physiology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Israel Pérez-Torres
- Department of Pathology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - María Elena Soto
- Department of Immunology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
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172
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Lee JH, Jun HS. Role of Myokines in Regulating Skeletal Muscle Mass and Function. Front Physiol 2019; 10:42. [PMID: 30761018 PMCID: PMC6363662 DOI: 10.3389/fphys.2019.00042] [Citation(s) in RCA: 208] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/14/2019] [Indexed: 12/27/2022] Open
Abstract
Loss of skeletal muscle mass and strength has recently become a hot research topic with the extension of life span and an increasingly sedentary lifestyle in modern society. Maintenance of skeletal muscle mass is considered an essential determinant of muscle strength and function. Myokines are cytokines synthesized and released by myocytes during muscular contractions. They are implicated in autocrine regulation of metabolism in the muscle as well as in the paracrine/endocrine regulation of other tissues and organs including adipose tissue, the liver, and the brain through their receptors. Till date, secretome analysis of human myocyte culture medium has revealed over 600 myokines. In this review article, we summarize our current knowledge of major identified and characterized myokines focusing on their biological activity and function, particularly in muscle mass and function.
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Affiliation(s)
- Jong Han Lee
- College of Pharmacy, Gachon University, Incheon, South Korea.,Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, South Korea
| | - Hee-Sook Jun
- College of Pharmacy, Gachon University, Incheon, South Korea.,Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, South Korea.,Gachon University Gil Medical Center, Gachon Medical and Convergence Institute, Incheon, South Korea
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173
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Małkiewicz MA, Szarmach A, Sabisz A, Cubała WJ, Szurowska E, Winklewski PJ. Blood-brain barrier permeability and physical exercise. J Neuroinflammation 2019; 16:15. [PMID: 30678702 PMCID: PMC6345022 DOI: 10.1186/s12974-019-1403-x] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 01/09/2019] [Indexed: 12/20/2022] Open
Abstract
In this narrative review, a theoretical framework on the crosstalk between physical exercise and blood-brain barrier (BBB) permeability is presented. We discuss the influence of physical activity on the factors affecting BBB permeability such as systemic inflammation, the brain renin-angiotensin and noradrenergic systems, central autonomic function and the kynurenine pathway. The positive role of exercise in multiple sclerosis and Alzheimer’s disease is described. Finally, the potential role of conditioning as well as the effect of exercise on BBB tight junctions is outlined. There is a body of evidence that regular physical exercise diminishes BBB permeability as it reinforces antioxidative capacity, reduces oxidative stress and has anti-inflammatory effects. It improves endothelial function and might increase the density of brain capillaries. Thus, physical training can be emphasised as a component of prevention programs developed for patients to minimise the risk of the onset of neuroinflammatory diseases as well as an augmentation of existing treatment. Unfortunately, despite a sound theoretical background, it remains unclear as to whether exercise training is effective in modulating BBB permeability in several specific diseases. Further research is needed as the impact of exercise is yet to be fully elucidated.
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Affiliation(s)
- Marta A Małkiewicz
- Department of Human Physiology, Faculty of Health Sciences, Medical University of Gdansk, Tuwima Str. 15, 80-210, Gdansk, Poland.,Department of Psychiatry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Arkadiusz Szarmach
- 2-nd Department of Radiology, Faculty of Health Sciences, Medical University of Gdansk, Gdansk, Poland
| | - Agnieszka Sabisz
- 2-nd Department of Radiology, Faculty of Health Sciences, Medical University of Gdansk, Gdansk, Poland
| | - Wiesław J Cubała
- Department of Psychiatry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Edyta Szurowska
- 2-nd Department of Radiology, Faculty of Health Sciences, Medical University of Gdansk, Gdansk, Poland
| | - Paweł J Winklewski
- Department of Human Physiology, Faculty of Health Sciences, Medical University of Gdansk, Tuwima Str. 15, 80-210, Gdansk, Poland. .,2-nd Department of Radiology, Faculty of Health Sciences, Medical University of Gdansk, Gdansk, Poland. .,Department of Clinical Anatomy and Physiology, Faculty of Health Sciences, Pomeranian University of Slupsk, Slupsk, Poland.
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174
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Toba H, Lindsey ML. Extracellular matrix roles in cardiorenal fibrosis: Potential therapeutic targets for CVD and CKD in the elderly. Pharmacol Ther 2019; 193:99-120. [PMID: 30149103 PMCID: PMC6309764 DOI: 10.1016/j.pharmthera.2018.08.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Whereas hypertension, diabetes, and dyslipidemia are age-related risk factors for cardiovascular disease (CVD) and chronic kidney disease (CKD), aging alone is an independent risk factor. With advancing age, the heart and kidney gradually but significantly undergo inflammation and subsequent fibrosis, which eventually results in an irreversible decline in organ physiology. Through cardiorenal network interactions, cardiac dysfunction leads to and responds to renal injury, and both facilitate aging effects. Thus, a comprehensive strategy is needed to evaluate the cardiorenal aging network. Common hallmarks shared across systems include extracellular matrix (ECM) accumulation, along with upregulation of matrix metalloproteinases (MMPs) including MMP-9. The wide range of MMP-9 substrates, including ECM components and inflammatory cytokines, implicates MMP-9 in a variety of pathological and age-related processes. In particular, there is strong evidence that inflammatory cell-derived MMP-9 exacerbates cardiorenal aging. This review explores the potential therapeutic targets against CVD and CKD in the elderly, focusing on ECM and MMP roles.
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Affiliation(s)
- Hiroe Toba
- Department of Clinical Pharmacology, Division of Pathological Sciences, Kyoto Pharmaceutical University, Kyoto, Japan.
| | - Merry L Lindsey
- Mississippi Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, and Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center, Jackson, MS, USA.
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175
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Roszkowska K, Witkowska-Pilaszewicz O, Przewozny M, Cywinska A. Whole body and partial body cryotherapies - lessons from human practice and possible application for horses. BMC Vet Res 2018; 14:394. [PMID: 30541547 PMCID: PMC6292096 DOI: 10.1186/s12917-018-1679-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 10/30/2018] [Indexed: 12/30/2022] Open
Abstract
Whole body and partial body cryotherapies (WBC and PBC) have been successfully used in human medicine, and currently also are being proposed in veterinary practice. In horses, only the partial body cryotherapy provided in cryosauna is considered, due to the technical conditions. These therapies have been dedicated to human patients with rheumatic and inflammatory diseases as well as an assistance during training in athletes. The anti-inflammatory effects have been demonstrated clinically and indicated by the changes in several hematological and immunological parameters, however, various patterns have been described, depending on the protocols and the treating subjects. The numbers of white blood cells and the differential counts either increased or remained unchanged but the cytokine concentrations generally changed towards various anti-inflammatory profiles and the modifications of immunological molecules having paracrine effects have been reported. In equine practice, local cold therapies have been successfully used, so the therapy in cryosauna, which allows for a much shorter procedure with much lower temperature seems promising.
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Affiliation(s)
- K Roszkowska
- Department of Pathology and Veterinary Diagnostics, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, SGGW, Nowoursynowska 159c, Warsaw, Poland
| | - O Witkowska-Pilaszewicz
- Department of Pathology and Veterinary Diagnostics, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, SGGW, Nowoursynowska 159c, Warsaw, Poland
| | - M Przewozny
- EQUI VET SERWIS, Wygoda 6, 64-320, Buk, Poland
| | - A Cywinska
- Department of Pathology and Veterinary Diagnostics, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, SGGW, Nowoursynowska 159c, Warsaw, Poland.
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176
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Smith JK. IL-6 and the dysregulation of immune, bone, muscle, and metabolic homeostasis during spaceflight. NPJ Microgravity 2018; 4:24. [PMID: 30534586 PMCID: PMC6279793 DOI: 10.1038/s41526-018-0057-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 10/10/2018] [Indexed: 01/08/2023] Open
Abstract
We have previously reported that exercise-related secretion of IL-6 by peripheral blood mononuclear cells is proportionate to body weight, suggesting that IL-6 is gravisensitive and that suboptimal production of this key cytokine may contribute to homeostatic dysregulations that occur during spaceflight. This review details what is known about the role of this key cytokine in innate and adaptive immunity, hematopoiesis, and in bone, muscle and metabolic homeostasis on Earth and in the microgravity of space and suggests an experimental approach to confirm or disavow the role of IL-6 in space-related dysregulations.
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Affiliation(s)
- John Kelly Smith
- Departments of Academic Affairs and Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN USA
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177
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Bao F, Slusher AL, Whitehurst M, Huang CJ. Circulating microRNAs are upregulated following acute aerobic exercise in obese individuals. Physiol Behav 2018; 197:15-21. [DOI: 10.1016/j.physbeh.2018.09.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 09/07/2018] [Accepted: 09/20/2018] [Indexed: 12/31/2022]
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178
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Oliveira DMG, Aguiar LT, de Oliveira Limones MV, Gomes AG, da Silva LC, de Morais Faria CDC, Scalzo PL. Aerobic Training Efficacy in Inflammation, Neurotrophins, and Function in Chronic Stroke Persons: A Randomized Controlled Trial Protocol. J Stroke Cerebrovasc Dis 2018; 28:418-424. [PMID: 30420316 DOI: 10.1016/j.jstrokecerebrovasdis.2018.10.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/10/2018] [Accepted: 10/11/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Neuroinflammation is an important part of stroke pathophysiology and has both detrimental and beneficial effects after stroke. Besides that the enhancement of neurotrophins seems to be related to improvements in stroke recovery. Evidences suggest that exercise plays a role in modulating anti-inflammatory and neurotrophic effects. However, little is known about its impact in stroke survivors, mainly in chronic stroke. The purpose of this study is to investigate the efficacy of moderate-intensity treadmill exercise in changing inflammatory mediators, interleukin-6 (IL-6), soluble tumor necrosis factor receptors I and II (sTNFRI, sTNFRII), interleukin-10 (IL-10), and brain-derived neurotrophic factor (BDNF) levels in chronic stroke patients. The secondary objective is to investigate the effects of training in improve mobility and exercise capacity. METHODS This is a randomized controlled trial. Chronic stroke patients will be randomized to an experimental or control group, and will receive group interventions three times per week, over 12 weeks. The experimental group will receive moderate-intensity (60%-80% of maximum heart rate reserve) treadmill exercise. Control group will perform walking training on the ground (<40% of maximum heart rate reserve). Primary outcomes include IL-6, sTNFRI, sTNFRII, IL-10, and BDNF levels. Secondary outcomes include mobility and exercise capacity. Outcomes will be measured at baseline, postintervention, and at the 4-week follow-up. DISCUSSION The findings of this trial have the potential to provide important insights regarding the effects of an aerobic physical program in the inflammatory process and in the neuronal plasticity in stroke persons and its impact on mobility and exercise capacity.
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Affiliation(s)
| | - Larissa Tavares Aguiar
- Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | | | - Aline Gonçalves Gomes
- Neuroscience Programme, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | - Luana Cristina da Silva
- Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | | | - Paula Luciana Scalzo
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
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179
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Bachman JF, Klose A, Liu W, Paris ND, Blanc RS, Schmalz M, Knapp E, Chakkalakal JV. Prepubertal skeletal muscle growth requires Pax7-expressing satellite cell-derived myonuclear contribution. Development 2018; 145:dev.167197. [PMID: 30305290 PMCID: PMC6215399 DOI: 10.1242/dev.167197] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 09/18/2018] [Indexed: 12/14/2022]
Abstract
The functional role of Pax7-expressing satellite cells (SCs) in postnatal skeletal muscle development beyond weaning remains obscure. Therefore, the relevance of SCs during prepubertal growth, a period after weaning but prior to the onset of puberty, has not been examined. Here, we have characterized mouse skeletal muscle growth during prepuberty and found significant increases in myofiber cross-sectional area that correlated with SC-derived myonuclear number. Remarkably, genome-wide RNA-sequencing analysis established that post-weaning juvenile and early adolescent skeletal muscle have markedly different gene expression signatures. These distinctions are consistent with extensive skeletal muscle maturation during this essential, albeit brief, developmental phase. Indelible labeling of SCs with Pax7CreERT2/+; Rosa26nTnG/+ mice demonstrated SC-derived myonuclear contribution during prepuberty, with a substantial reduction at puberty onset. Prepubertal depletion of SCs in Pax7CreERT2/+; Rosa26DTA/+ mice reduced myofiber size and myonuclear number, and caused force generation deficits to a similar extent in both fast and slow-contracting muscles. Collectively, these data demonstrate SC-derived myonuclear accretion as a cellular mechanism that contributes to prepubertal hypertrophic skeletal muscle growth. Summary: Examination of gene expression and morphological changes in mouse skeletal muscle during prepuberty demonstrates that satellite cell-derived myonuclear accretion contributes to prepubertal hypertrophic skeletal muscle growth.
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Affiliation(s)
- John F Bachman
- Department of Pathology and Laboratory Medicine, Cell Biology of Disease Graduate Program, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY 14642, USA.,Department of Pharmacology and Physiology, University of Rochester Medical Center, 601 Elmwood Ave Box 711, Rochester, NY 14642, USA
| | - Alanna Klose
- Department of Pharmacology and Physiology, University of Rochester Medical Center, 601 Elmwood Ave Box 711, Rochester, NY 14642, USA
| | - Wenxuan Liu
- Department of Pharmacology and Physiology, University of Rochester Medical Center, 601 Elmwood Ave Box 711, Rochester, NY 14642, USA .,Department of Biomedical Genetics, Genetics, Development, and Stem Cells Graduate Program, University of Rochester Medical Center, 601 Elmwood Ave Box 633, Rochester, NY 14642, USA
| | - Nicole D Paris
- Department of Pharmacology and Physiology, University of Rochester Medical Center, 601 Elmwood Ave Box 711, Rochester, NY 14642, USA
| | - Roméo S Blanc
- Department of Pharmacology and Physiology, University of Rochester Medical Center, 601 Elmwood Ave Box 711, Rochester, NY 14642, USA
| | - Melissa Schmalz
- Department of Pharmacology and Physiology, University of Rochester Medical Center, 601 Elmwood Ave Box 711, Rochester, NY 14642, USA
| | - Emma Knapp
- Department of Orthopaedics and Rehabilitation, Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY 14642, USA
| | - Joe V Chakkalakal
- Department of Pharmacology and Physiology, University of Rochester Medical Center, 601 Elmwood Ave Box 711, Rochester, NY 14642, USA.,Wilmot Cancer Institute, Stem Cell and Regenerative Medicine Institute, The Rochester Aging Research Center, and Department of Biomedical Engineering, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY 14642, USA
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180
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Inflammatory Markers in Anorexia Nervosa: An Exploratory Study. Nutrients 2018; 10:nu10111573. [PMID: 30355978 PMCID: PMC6266841 DOI: 10.3390/nu10111573] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/17/2018] [Accepted: 10/23/2018] [Indexed: 12/18/2022] Open
Abstract
Inflammation has been suggested to play a pathophysiological role in anorexia nervosa (AN). In this exploratory cross-sectional study, we measured serum concentrations of 40 inflammatory markers (including cytokines, chemokines, and adhesion molecules) and brain-derived neurotrophic factor (BDNF) in people with AN (n = 27) and healthy controls (HCs) (n = 13). Many of these inflammatory markers had not been previously quantified in people with AN. Eating disorder (ED) and general psychopathology symptoms were assessed. Body mass index (BMI) and body composition data were obtained. Interleukin (IL)-6, IL-15, and vascular cell adhesion molecule (VCAM)-1 concentrations were significantly elevated and concentrations of BDNF, tumor necrosis factor (TNF)-β, and vascular endothelial growth factor (VEGF)-A were significantly lower in AN participants compared to HCs. Age, BMI, and percentage body fat mass were identified as potential confounding variables for several of these inflammatory markers. Of particular interest is that most of the quantified markers were unchanged in people with AN, despite them being severely underweight with evident body fat loss, and having clinically significant ED symptoms and severe depression and anxiety symptoms. Future research should examine the replicability of our findings and consider the effect of additional potential confounding variables, such as smoking and physical activity, on the relationship between AN and inflammation.
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181
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Myokines as Possible Therapeutic Targets in Cancer Cachexia. J Immunol Res 2018; 2018:8260742. [PMID: 30426026 PMCID: PMC6217752 DOI: 10.1155/2018/8260742] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 09/23/2018] [Indexed: 01/04/2023] Open
Abstract
Cachexia is an extremely serious syndrome which occurs in most patients with different cancers, and it is characterized by systemic inflammation, a negative protein and energy balance, and involuntary loss of body mass. This syndrome has a dramatic impact on the patient's quality of life, and it is also associated with a low response to chemotherapy leading to a decrease in survival. Despite this, cachexia is still underestimated and often untreated. New research is needed in this area to understand this complex phenomenon and ultimately find treatment methods and therapeutic targets. The skeletal muscle can act as an endocrine organ. Signaling between muscles and other systems is done through myokines, cytokines, and proteins produced and released by myocytes. In this review, we would like to draw attention to some of the most important myokines that could have potential as biomarkers and therapeutic targets: myostatin, irisin, myonectin, decorin, fibroblast growth factor 21, interleukin-6, interleukin-8, and interleukin-15.
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182
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Antunes BM, Campos EZ, dos Santos RVT, Rosa‐Neto JC, Franchini E, Bishop NC, Lira FS. Anti‐inflammatory response to acute exercise is related with intensity and physical fitness. J Cell Biochem 2018; 120:5333-5342. [DOI: 10.1002/jcb.27810] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 09/12/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Barbara Moura Antunes
- Department of Physical Education Exercise and Immunometabolism Research Group, Universidade Estadual Paulista Presidente Prudente São Paulo Brazil
| | - Eduardo Zapaterra Campos
- Department of Physical Education Exercise and Immunometabolism Research Group, Universidade Estadual Paulista Presidente Prudente São Paulo Brazil
- Department of Physical Education Federal University of Pernambuco Recife Brazil
| | | | - José Cesar Rosa‐Neto
- Immunometabolism Research Group, Institute of Biomedical Sciences, University of São Paulo São Paulo Brazil
| | - Emerson Franchini
- School of Physical Education and Sport, University of São Paulo São Paulo Brazil
| | - Nicolette C. Bishop
- School of Sport, Exercise and Health Sciences, Loughborough University Loughborough United Kingdom
| | - Fábio Santos Lira
- Department of Physical Education Exercise and Immunometabolism Research Group, Universidade Estadual Paulista Presidente Prudente São Paulo Brazil
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183
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Winkelman C, Sattar A, Momotaz H, Johnson KD, Morris P, Rowbottom JR, Thornton JD, Feeney S, Levine A. Dose of Early Therapeutic Mobility: Does Frequency or Intensity Matter? Biol Res Nurs 2018; 20:522-530. [PMID: 29902939 PMCID: PMC6346319 DOI: 10.1177/1099800418780492] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Investigate the feasibility of a nurse-led mobility protocol and compare the effects of once- versus twice-daily episodes of early therapeutic mobility (ETM) and low- versus moderate-intensity ETM on serum biomarkers of inflammation and selected outcomes in critically ill adults. DESIGN Randomized interventional study with repeated measures and blinded assessment of outcomes. SETTING Four adult intensive care units (ICUs) in two academic medical centers. SUBJECTS Fifty-four patients with > 48 hr of mechanical ventilation (MV). INTERVENTION Patients were assigned to once- or twice-daily ETM via sealed envelope randomization at enrollment. Intensity of (in-bed vs. out-of-bed) ETM was administered according to protocolized patient assessment. MEASUREMENTS Interleukins 6, 10, 8, 15, and tumor necrosis factor-α were collected from serum before and after ETM; change scores were used in the analyses. Manual muscle and handgrip strength, delirium onset, duration of MV, and ICU length of stay (LOS) were evaluated as patient outcomes. MAIN RESULTS Hypotheses regarding the inflammatory biomarkers were not supported based on confidence intervals. Twice-daily intervention was associated with reduced ICU LOS. Moderate-intensity (out-of-bed) ETM was associated with greater manual muscle test scores and handgrip strength and reduced occurrence of delirium. CONCLUSION Findings from this study suggest that nurses can provide twice-daily mobility interventions that include sitting on the edge of the bed once patients have a stable status without altering a pro-inflammatory serum biomarker profile.
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Affiliation(s)
- Chris Winkelman
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, OH, USA,Chris Winkelman, RN, PhD, CCRN, ACNP, FCCM, Frances Payne Bolton School of Nursing, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Abdus Sattar
- Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Hasina Momotaz
- Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | | | - Peter Morris
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Kentucky HealthCare System, Lexington, KY, USA
| | - James R. Rowbottom
- Department of Anesthesiology and Perioperative Medicine, University Hospitals, Cleveland Medical Center, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | | | | | - Alan Levine
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
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184
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Leal LG, Lopes MA, Batista ML. Physical Exercise-Induced Myokines and Muscle-Adipose Tissue Crosstalk: A Review of Current Knowledge and the Implications for Health and Metabolic Diseases. Front Physiol 2018; 9:1307. [PMID: 30319436 PMCID: PMC6166321 DOI: 10.3389/fphys.2018.01307] [Citation(s) in RCA: 188] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 08/29/2018] [Indexed: 01/19/2023] Open
Abstract
Physical exercise has beneficial effects on metabolic diseases, and a combined therapeutic regimen of regular exercise and pharmaceutical treatment is often recommended for their clinical management. However, the mechanisms by which exercise produces these beneficial effects are not fully understood. Myokines, a group of skeletal muscle (SkM) derived peptides may play an important part in this process. Myokines are produced, expressed and released by muscle fibers under contraction and exert both local and pleiotropic effects. Myokines such as IL-6, IL-10, and IL-1ra released during physical exercise mediate its health benefits. Just as exercise seems to promote the myokine response, physical inactivity seems to impair it, and could be a mechanism to explain the association between sedentary behavior and many chronic diseases. Myokines help configure the immune-metabolic factor interface and the health promoting effects of physical exercise through the release of humoral factors capable of interacting with other tissues, mainly adipose tissue (AT). AT itself secretes proinflammatory cytokines (adipokines) as a result of physical inactivity and it is well recognized that AT inflammation can lead to the development of metabolic diseases, such as type 2 diabetes mellitus (T2DM) and atherosclerosis. On the other hand, the browning phenotype of AT has been suggested to be one of the mechanisms through which physical exercise improves body composition in overweight/obese individuals. Although, many cytokines are involved in the crosstalk between SkM and AT, in respect of these effects, it is IL-6, IL-15, irisin, and myostatin which seem to have the decisive role in this “conversation” between AT and SkM. This review article proposes to bring together the latest “state of the art” knowledge regarding Myokines and muscle-adipose tissue crosstalk. Furthermore, it is intended to particularly focus on the immune-metabolic changes from AT directly mediated by myokines.
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Affiliation(s)
- Luana G Leal
- Integrated Group of Biotechnology, Laboratory of Adipose Tissue Biology, University of Mogi das Cruzes, São Paulo, Brazil.,Technological Research Group, University of Mogi das Cruzes, São Paulo, Brazil
| | - Magno A Lopes
- Integrated Group of Biotechnology, Laboratory of Adipose Tissue Biology, University of Mogi das Cruzes, São Paulo, Brazil
| | - Miguel L Batista
- Integrated Group of Biotechnology, Laboratory of Adipose Tissue Biology, University of Mogi das Cruzes, São Paulo, Brazil.,Technological Research Group, University of Mogi das Cruzes, São Paulo, Brazil
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185
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Skeletal muscle secretion of IL-6 is muscle type specific: Ex vivo evidence. Biochem Biophys Res Commun 2018; 505:146-150. [PMID: 30241947 DOI: 10.1016/j.bbrc.2018.09.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 09/07/2018] [Indexed: 01/18/2023]
Abstract
Emerging evidence indicates that skeletal muscle possesses endocrine function to secret myokines. Interleukin 6 (IL-6) is a well-characterized myokine that is involved in regulation of metabolism and muscle function. Metabolism type and contractile dynamics vary in different muscle types. It is not clear, however, if IL-6 secretion differs in different muscle types. In this study, we first established an ex vivo approach to test the inducible muscle secretion. Freshly isolated muscles were incubated in Krebs solution at 37 °C with oxygen supply. Secreted IL-6 in the incubation media was measure using Western blot and ELISA assay. We first confirmed that the IL-6 release was inducible by treating the incubated muscle with a cytokine stimulant. We demonstrated that physiological temperature (37 °C) and O2 supply were essential for the induction of IL-6 release from the incubated muscle, suggesting it is a controlled secretion rather than a spontaneous leak. Using this approach, we found that IL-6 release was only inducible from soleus muscle but not EDL muscle. We further showed that IL-6 protein level was higher in slow oxidative muscle fibers. Moreover, we showed that EDL, although lacks of IL-6 release, surely has inducible secretory function that had different secretory pattern from soleus.
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186
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Díaz BB, González DA, Gannar F, Pérez MCR, de León AC. Myokines, physical activity, insulin resistance and autoimmune diseases. Immunol Lett 2018; 203:1-5. [PMID: 30194964 DOI: 10.1016/j.imlet.2018.09.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/22/2018] [Accepted: 09/03/2018] [Indexed: 12/15/2022]
Abstract
Myokines are peptides produced and released by myocytes of muscle fibers that influence physiology of muscle and other organs and tissues. They are involved in mediating the beneficial effects that exercise has on health. More than one hundred have been identified and among them are IL6, myostatin, irisin, mionectin and decorin. Physical inactivity leads to an altered response of the secretion of myokines and resistance to them; this leads to a pro-inflammatory state that favors sarcopenia and fat accumulation, promoting the development of cardiovascular diseases, insulin resistance, and diabetes mellitus type 2. Some myokines, including irisin, are responsible for the improvement that exercise produces in many chronic diseases such as type 2 diabetes and cardiovascular diseases, some types of cancer and many autoimmune diseases such as idiopathic inflammatory myopathy, rheumatoid arthritis, systemic lupus erythematosus and inflammatory bowel disease.
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Affiliation(s)
- Buenaventura Brito Díaz
- Research Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Delia Almeida González
- Research Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain; Immunology Section, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Fadoua Gannar
- Laboratory of Biochemistry-Human Nutrition, Faculty of Sciences of Bizerte, Carthage University, Tunis, Tunisia
| | - M Cristo Rodríguez Pérez
- Research Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Antonio Cabrera de León
- Research Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain; Facultad de Medicina, Universidad de La Laguna, La Laguna, Spain.
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187
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Cerda‐Kohler H, Henríquez‐Olguín C, Casas M, Jensen TE, Llanos P, Jaimovich E. Lactate administration activates the ERK1/2, mTORC1, and AMPK pathways differentially according to skeletal muscle type in mouse. Physiol Rep 2018; 6:e13800. [PMID: 30230254 PMCID: PMC6144450 DOI: 10.14814/phy2.13800] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 06/25/2018] [Indexed: 12/12/2022] Open
Abstract
Skeletal muscle is described as an endocrine organ, constitutively or intermittently secreting bioactive molecules. The signaling pathways by which these molecules mediate changes in skeletal muscle and regulate interorgan crosstalk are only partly understood. Lactate is widely described as a signaling molecule in different cells, but the role of lactate as a signaling molecule in mature skeletal muscle has not been fully unveiled. The aim of this study was to determine the role of lactate on activation of signaling pathways in adult mouse skeletal muscle. Male mice were injected intraperitoneally with lactate or saline, and tissues were dissected after 40 min. Phosphorylation levels of relevant proteins in muscle were assessed by Western blotting. After lactate administration, we found an increase in p-ERK1/2Thr202/Tyr204 (3.5-fold; P = 0.004) and p-p70S6KThr389 (1.9-fold; P = 0.01) in quadriceps; and an increase in p-rpS6Ser235/236 in both quadriceps (6.3-fold; P = 0.01) and EDL (2.3-fold; P = 0.01), without changes in soleus. There was a tendency toward an increase in p-AMPKThr172 (1.7-fold; P = 0.08), with a significant increase in p-ACCSer79 (1.5-fold; P = 0.04) in soleus, without changes in quadriceps and EDL. These results support the hypothesis that lactate plays a role in the molecular signaling related to hypertrophy and to oxidative metabolism on adult skeletal muscle and suggest that this activation depends on the skeletal muscle type. The mechanisms that underlie the effect of lactate in mature skeletal muscles remain to be established.
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Affiliation(s)
- Hugo Cerda‐Kohler
- Faculty of MedicineCenter for Exercise, Metabolism and CancerICBMUniversidad de ChileSantiagoChile
- Laboratory of Exercise ScienceClínica MEDSSantiagoChile
| | - Carlos Henríquez‐Olguín
- Faculty of MedicineCenter for Exercise, Metabolism and CancerICBMUniversidad de ChileSantiagoChile
- Laboratory of Exercise ScienceClínica MEDSSantiagoChile
- Department of Nutrition, Exercise and SportsMolecular Physiology GroupFaculty of ScienceUniversity of CopenhagenCopenhagenDenmark
| | - Mariana Casas
- Faculty of MedicineCenter for Exercise, Metabolism and CancerICBMUniversidad de ChileSantiagoChile
- Physiology and Biophysics ProgramICBMFaculty of MedicineUniversidad de ChileSantiagoChile
| | - Thomas E. Jensen
- Department of Nutrition, Exercise and SportsMolecular Physiology GroupFaculty of ScienceUniversity of CopenhagenCopenhagenDenmark
| | - Paola Llanos
- Faculty of MedicineCenter for Exercise, Metabolism and CancerICBMUniversidad de ChileSantiagoChile
- Institute for Research in Dental SciencesFacultad de OdontologíaUniversidad de ChileSantiagoChile
| | - Enrique Jaimovich
- Faculty of MedicineCenter for Exercise, Metabolism and CancerICBMUniversidad de ChileSantiagoChile
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188
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Maleiner B, Tomasch J, Heher P, Spadiut O, Rünzler D, Fuchs C. The Importance of Biophysical and Biochemical Stimuli in Dynamic Skeletal Muscle Models. Front Physiol 2018; 9:1130. [PMID: 30246791 PMCID: PMC6113794 DOI: 10.3389/fphys.2018.01130] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 07/30/2018] [Indexed: 12/31/2022] Open
Abstract
Classical approaches to engineer skeletal muscle tissue based on current regenerative and surgical procedures still do not meet the desired outcome for patient applications. Besides the evident need to create functional skeletal muscle tissue for the repair of volumetric muscle defects, there is also growing demand for platforms to study muscle-related diseases, such as muscular dystrophies or sarcopenia. Currently, numerous studies exist that have employed a variety of biomaterials, cell types and strategies for maturation of skeletal muscle tissue in 2D and 3D environments. However, researchers are just at the beginning of understanding the impact of different culture settings and their biochemical (growth factors and chemical changes) and biophysical cues (mechanical properties) on myogenesis. With this review we intend to emphasize the need for new in vitro skeletal muscle (disease) models to better recapitulate important structural and functional aspects of muscle development. We highlight the importance of choosing appropriate system components, e.g., cell and biomaterial type, structural and mechanical matrix properties or culture format, and how understanding their interplay will enable researchers to create optimized platforms to investigate myogenesis in healthy and diseased tissue. Thus, we aim to deliver guidelines for experimental designs to allow estimation of the potential influence of the selected skeletal muscle tissue engineering setup on the myogenic outcome prior to their implementation. Moreover, we offer a workflow to facilitate identifying and selecting different analytical tools to demonstrate the successful creation of functional skeletal muscle tissue. Ultimately, a refinement of existing strategies will lead to further progression in understanding important aspects of muscle diseases, muscle aging and muscle regeneration to improve quality of life of patients and enable the establishment of new treatment options.
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Affiliation(s)
- Babette Maleiner
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Janine Tomasch
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Philipp Heher
- The Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Ludwig Boltzmann Institute for Experimental and Clinical Traumatology/AUVA Research Center, Vienna, Austria.,Trauma Care Consult GmbH, Vienna, Austria
| | - Oliver Spadiut
- Institute of Chemical Engineering, Vienna University of Technology, Vienna, Austria
| | - Dominik Rünzler
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Christiane Fuchs
- Department of Biochemical Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria.,The Austrian Cluster for Tissue Regeneration, Vienna, Austria
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189
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High levels of cerebrospinal fluid chemokines point to the presence of neuroinflammation in peripheral neuropathic pain: a cross-sectional study of 2 cohorts of patients compared with healthy controls. Pain 2018; 158:2487-2495. [PMID: 28930774 PMCID: PMC5690569 DOI: 10.1097/j.pain.0000000000001061] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
According to animal models, neuroinflammation is a major feature of neuropathic pain. The present findings confirm that this hypothesis is of relevance to humans. Animal models suggest that chemokines are important mediators in the pathophysiology of neuropathic pain. Indeed, these substances have been called “gliotransmitters,” a term that illustrates the close interplay between glial cells and neurons in the context of neuroinflammation and pain. However, evidence in humans is scarce. The aim of the study was to determine a comprehensive cerebrospinal fluid (CSF) inflammatory profile of patients with neuropathic pain. Our hypothesis was that we would thereby find indications of a postulated on-going process of central neuroinflammation. Samples of CSF were collected from 2 cohorts of patients with neuropathic pain (n = 11 and n = 16, respectively) and healthy control subjects (n = 11). The samples were analyzed with a multiplex proximity extension assay in which 92 inflammation-related proteins were measured simultaneously (Proseek Multiplex Inflammation I; Olink Bioscience, Uppsala, Sweden). Univariate testing with control of false discovery rate, as well as orthogonal partial least squares discriminant analysis, were used for statistical analyses. Levels of chemokines CXCL6, CXCL10, CCL8, CCL11, CCL23 in CSF, as well as protein LAPTGF-beta-1, were significantly higher in both neuropathic pain cohorts compared with healthy controls, pointing to neuroinflammation in patients. These 6 proteins were also major results in a recent similar study in patients with fibromyalgia. The findings need to be confirmed in larger cohorts, and the question of causality remains to be settled. Because it has been suggested that prevalent comorbidities to chronic pain (eg, depression, anxiety, poor sleep, and tiredness) also are associated with neuroinflammation, it will be important to determine whether neuroinflammation is a common mediator.
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190
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Bettis T, Kim BJ, Hamrick MW. Impact of muscle atrophy on bone metabolism and bone strength: implications for muscle-bone crosstalk with aging and disuse. Osteoporos Int 2018; 29:1713-1720. [PMID: 29777277 PMCID: PMC7861141 DOI: 10.1007/s00198-018-4570-1] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 03/28/2018] [Indexed: 02/07/2023]
Abstract
Bone fractures in older adults are often preceded by a loss of muscle mass and strength. Likewise, bone loss with prolonged bed rest, spinal cord injury, or with exposure to microgravity is also preceded by a rapid loss of muscle mass. Recent studies using animal models in the setting of hindlimb unloading or botulinum toxin (Botox) injection also reveal that muscle loss can induce bone loss. Moreover, muscle-derived factors such as irisin and leptin can inhibit bone loss with unloading, and knockout of catabolic factors in muscle such as the ubiquitin ligase Murf1 or the myokine myostatin can reduce osteoclastogenesis. These findings suggest that therapies targeting muscle in the setting of disuse atrophy may potentially attenuate bone loss, primarily by reducing bone resorption. These potential therapies not only include pharmacological approaches but also interventions such as whole-body vibration coupled with resistance exercise and functional electric stimulation of muscle.
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Affiliation(s)
- T Bettis
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Laney Walker Blvd. CB2915, Augusta, GA, 30912, USA
| | - B-J Kim
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Laney Walker Blvd. CB2915, Augusta, GA, 30912, USA
- ASAN Medical Center, College of Medicine, University of Ulsan, Seoul, Republic of Korea
| | - M W Hamrick
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Laney Walker Blvd. CB2915, Augusta, GA, 30912, USA.
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191
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Franchini E, Lira FS, Julio UF, Antunes BM, Agostinho MF, Shiroma SA, Gonçalves Panissa VL. Cytokine, physiological, technical–tactical and time structure responses in simulated judo competition. INT J PERF ANAL SPOR 2018. [DOI: 10.1080/24748668.2018.1501993] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Emerson Franchini
- Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
- Combat Centre, Australian Institute of Sport, Canberra, Australia
| | - Fabio Santos Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, UNESP, Presidente Prudente, SP, Brazil
| | - Ursula Ferreira Julio
- Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Barbara Moura Antunes
- Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, UNESP, Presidente Prudente, SP, Brazil
| | - Marcus Fabio Agostinho
- Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Seihati Ari Shiroma
- Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Valéria Leme Gonçalves Panissa
- Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
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192
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Bojungikgi-tang Improves Muscle and Spinal Cord Function in an Amyotrophic Lateral Sclerosis Model. Mol Neurobiol 2018; 56:2394-2407. [PMID: 30030751 DOI: 10.1007/s12035-018-1236-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 07/10/2018] [Indexed: 12/13/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a motor neuron disease characterized by progressive motor function impairment, dysphagia, and respiratory failure. Owing to the complexity of its pathogenic mechanisms, an effective therapy for ALS is lacking. Herbal medicines with multiple targets have good efficacy and low adverse reactions for the treatment of neurodegenerative diseases. In this study, the effects of Bojungikgi-tang (BJIGT), an herbal medicine with eight component herbs, on muscle and spinal cord function were evaluated in an ALS animal model. Animals were randomly divided into three groups: a non-transgenic group (nTg, n = 24), a hSOD1G93A transgenic group (Tg, n = 24), and a hSOD1G93A transgenic group in which 8-week-old mice were orally administered BJIGT (1 mg/g) once daily for 6 weeks (Tg+BJIGT, n = 24). The effects of BJIGT were evaluated using a rotarod test, foot-printing, and survival analyses based on Kaplan-Meier survival curves. To determine the biological mechanism underlying the effects of BJIGT in hSOD1G93A mice, western blotting, transmission electron microscopy, and Bungarotoxin staining were used. BJIGT improved motor function and extended the survival duration of hSOD1G93A mice. In addition, BJIGT had protective effects, including anti-oxidative and anti-inflammatory effects, in both the spinal cord and muscle of hSOD1G93A mice. Our results demonstrated that BJIGT causes muscle atrophy and the denervation of neuromuscular junctions in the gastrocnemius of hSOD1G93A mice. The components of BJIGT may alleviate the symptoms of ALS via different mechanisms, and accordingly, BJIGT treatment may be an effective therapeutic approach.
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193
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Chen K, Xu Z, Liu Y, Wang Z, Li Y, Xu X, Chen C, Xia T, Liao Q, Yao Y, Zeng C, He D, Yang Y, Tan T, Yi J, Zhou J, Zhu H, Ma J, Zeng C. Irisin protects mitochondria function during pulmonary ischemia/reperfusion injury. Sci Transl Med 2018; 9:9/418/eaao6298. [PMID: 29187642 DOI: 10.1126/scitranslmed.aao6298] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 08/10/2017] [Accepted: 10/20/2017] [Indexed: 12/13/2022]
Abstract
Limb remote ischemic preconditioning (RIPC) is an effective means of protection against ischemia/reperfusion (IR)-induced injury to multiple organs. Many studies are focused on identifying endocrine mechanisms that underlie the cross-talk between muscle and RIPC-mediated organ protection. We report that RIPC releases irisin, a myokine derived from the extracellular portion of fibronectin domain-containing 5 protein (FNDC5) in skeletal muscle, to protect against injury to the lung. Human patients with neonatal respiratory distress syndrome show reduced concentrations of irisin in the serum and increased irisin concentrations in the bronchoalveolar lavage fluid, suggesting transfer of irisin from circulation to the lung under physiologic stress. In mice, application of brief periods of ischemia preconditioning stimulates release of irisin into circulation and transfer of irisin to the lung subjected to IR injury. Irisin, via lipid raft-mediated endocytosis, enters alveolar cells and targets mitochondria. Interaction between irisin and mitochondrial uncoupling protein 2 (UCP2) allows for prevention of IR-induced oxidative stress and preservation of mitochondrial function. Animal model studies show that intravenous administration of exogenous irisin protects against IR-induced injury to the lung via improvement of mitochondrial function, whereas in UCP2-deficient mice or in the presence of a UCP2 inhibitor, the protective effect of irisin is compromised. These results demonstrate that irisin is a myokine that facilitates RIPC-mediated lung protection. Targeting the action of irisin in mitochondria presents a potential therapeutic intervention for pulmonary IR injury.
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Affiliation(s)
- Ken Chen
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China.,Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Zaicheng Xu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Yukai Liu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Zhen Wang
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Yu Li
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Xuefei Xu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Caiyu Chen
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Tianyang Xia
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Qiao Liao
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Yonggang Yao
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Cindy Zeng
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Duofen He
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China.,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
| | - Yongjian Yang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Tao Tan
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Jianxun Yi
- Department of Physiology, Kansas City University, Kansas City, MO 64106, USA
| | - Jingsong Zhou
- Department of Physiology, Kansas City University, Kansas City, MO 64106, USA
| | - Hua Zhu
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Jianjie Ma
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA.
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China. .,Chongqing Institute of Cardiology, Chongqing 400042, P.R. China
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194
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Ribaldone DG, Pellicano R, Actis GC. Inflammation: a highly conserved, Janus-like phenomenon—a gastroenterologist’ perspective. J Mol Med (Berl) 2018; 96:861-871. [DOI: 10.1007/s00109-018-1668-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/10/2018] [Accepted: 07/04/2018] [Indexed: 12/12/2022]
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195
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Vitale JA, Lombardi G, Weydahl A, Banfi G. Biological rhythms, chronodisruption and chrono-enhancement: The role of physical activity as synchronizer in correcting steroids circadian rhythm in metabolic dysfunctions and cancer. Chronobiol Int 2018; 35:1185-1197. [DOI: 10.1080/07420528.2018.1475395] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jacopo Antonino Vitale
- Laboratory of Biological Structure Biomechanics, IRCCS Istituto Ortopedico Galeazzi, Milano, Italia
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italia
| | - Andi Weydahl
- UiT-The Arctic University of Norway, Alta, Norway
| | - Giuseppe Banfi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italia
- Vita-Salute San Raffaele University, Milano, Italia
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196
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Adami R, Pagano J, Colombo M, Platonova N, Recchia D, Chiaramonte R, Bottinelli R, Canepari M, Bottai D. Reduction of Movement in Neurological Diseases: Effects on Neural Stem Cells Characteristics. Front Neurosci 2018; 12:336. [PMID: 29875623 PMCID: PMC5974544 DOI: 10.3389/fnins.2018.00336] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/30/2018] [Indexed: 01/04/2023] Open
Abstract
Both astronauts and patients affected by chronic movement-limiting pathologies face impairment in muscle and/or brain performance. Increased patient survival expectations and the expected longer stays in space by astronauts may result in prolonged motor deprivation and consequent pathological effects. Severe movement limitation can influence not only the motor and metabolic systems but also the nervous system, altering neurogenesis and the interaction between motoneurons and muscle cells. Little information is yet available about the effect of prolonged muscle disuse on neural stem cells characteristics. Our in vitro study aims to fill this gap by focusing on the biological and molecular properties of neural stem cells (NSCs). Our analysis shows that NSCs derived from the SVZ of HU mice had shown a reduced proliferation capability and an altered cell cycle. Furthermore, NSCs obtained from HU animals present an incomplete differentiation/maturation. The overall results support the existence of a link between reduction of exercise and muscle disuse and metabolism in the brain and thus represent valuable new information that could clarify how circumstances such as the absence of load and the lack of movement that occurs in people with some neurological diseases, may affect the properties of NSCs and contribute to the negative manifestations of these conditions.
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Affiliation(s)
- Raffaella Adami
- Department of Health Science, University of Milan, Milan, Italy
| | - Jessica Pagano
- Department of Health Science, University of Milan, Milan, Italy
| | - Michela Colombo
- Department of Health Science, University of Milan, Milan, Italy
| | | | - Deborah Recchia
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | | | | | - Monica Canepari
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Daniele Bottai
- Department of Health Science, University of Milan, Milan, Italy
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197
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Corlier F, Hafzalla G, Faskowitz J, Kuller LH, Becker JT, Lopez OL, Thompson PM, Braskie MN. Systemic inflammation as a predictor of brain aging: Contributions of physical activity, metabolic risk, and genetic risk. Neuroimage 2018; 172:118-129. [PMID: 29357308 PMCID: PMC5954991 DOI: 10.1016/j.neuroimage.2017.12.027] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 12/01/2017] [Accepted: 12/11/2017] [Indexed: 12/17/2022] Open
Abstract
Inflammatory processes may contribute to risk for Alzheimer's disease (AD) and age-related brain degeneration. Metabolic and genetic risk factors, and physical activity may, in turn, influence these inflammatory processes. Some of these risk factors are modifiable, and interact with each other. Understanding how these processes together relate to brain aging will help to inform future interventions to treat or prevent cognitive decline. We used brain magnetic resonance imaging (MRI) to scan 335 older adult humans (mean age 77.3 ± 3.4 years) who remained non-demented for the duration of the 9-year longitudinal study. We used structural equation modeling (SEM) in a subset of 226 adults to evaluate whether measures of baseline peripheral inflammation (serum C-reactive protein levels; CRP), mediated the baseline contributions of genetic and metabolic risk, and physical activity, to regional cortical thickness in AD-relevant brain regions at study year 9. We found that both baseline metabolic risk and AD risk variant apolipoprotein E ε4 (APOE4), modulated baseline serum CRP. Higher baseline CRP levels, in turn, predicted thinner regional cortex at year 9, and mediated an effect between higher metabolic risk and thinner cortex in those regions. A higher polygenic risk score composed of variants in immune-associated AD risk genes (other than APOE) was associated with thinner regional cortex. However, CRP levels did not mediate this effect, suggesting that other mechanisms may be responsible for the elevated AD risk. We found interactions between genetic and environmental factors and structural brain health. Our findings support the role of metabolic risk and peripheral inflammation in age-related brain decline.
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Affiliation(s)
- Fabian Corlier
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA 90292, USA
| | - George Hafzalla
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA 90292, USA
| | - Joshua Faskowitz
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA 90292, USA
| | - Lewis H Kuller
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - James T Becker
- Departments of Neurology, Psychiatry, and Psychology, University of Pittsburgh, Pittsburgh, PA 15139, USA
| | - Oscar L Lopez
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Paul M Thompson
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA 90292, USA; Depts. of Neurology, Psychiatry, Engineering, Radiology, & Ophthalmology, Keck/USC School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Meredith N Braskie
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA 90292, USA.
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198
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Improvement of cognitive functions in response to a regular Nordic walking training in elderly women – A change dependent on the training experience. Exp Gerontol 2018; 104:105-112. [DOI: 10.1016/j.exger.2018.02.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/26/2018] [Accepted: 02/05/2018] [Indexed: 11/18/2022]
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199
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Simioni C, Zauli G, Martelli AM, Vitale M, Sacchetti G, Gonelli A, Neri LM. Oxidative stress: role of physical exercise and antioxidant nutraceuticals in adulthood and aging. Oncotarget 2018; 9:17181-17198. [PMID: 29682215 PMCID: PMC5908316 DOI: 10.18632/oncotarget.24729] [Citation(s) in RCA: 260] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 03/08/2018] [Indexed: 12/12/2022] Open
Abstract
Physical exercise is considered to be one of the beneficial factors of a proper lifestyle and is nowadays seen as an indispensable element for good health, able to lower the risk of disorders of the cardiovascular, endocrine and osteomuscular apparatus, immune system diseases and the onset of potential neoplasms. A moderate and programmed physical exercise has often been reported to be therapeutic both in the adulthood and in aging, since capable to promote fitness. Regular exercise alleviates the negative effects caused by free radicals and offers many health benefits, including reduced risk of all-cause mortality, sarcopenia in the skeletal muscle, chronic disease, and premature death in elderly people. However, physical performance is also known to induce oxidative stress, inflammation, and muscle fatigue. Many efforts have been carried out to identify micronutrients and natural compounds, also known as nutraceuticals, able to prevent or attenuate the exercise-induced oxidative stress and inflammation. The aim of this review is to discuss the benefits deriving from a constant physical activity and by the intake of antioxidant compounds to protect the body from oxidative stress. The attention will be focused mainly on three natural antioxidants, which are quercetin, resveratrol and curcumin. Their properties and activity will be described, as well as their benefits on physical activity and on aging, which is expected to increase through the years and can get favorable benefits from a constant exercise activity.
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Affiliation(s)
- Carolina Simioni
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Giorgio Zauli
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Alberto M. Martelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Vitale
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- CoreLab, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Gianni Sacchetti
- Department of Life Sciences and Biotechnology, Pharmaceutical Biology Laboratory, University of Ferrara, Ferrara, Italy
| | - Arianna Gonelli
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Luca M. Neri
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
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200
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Kabak B, Belviranli M, Okudan N. Irisin and myostatin responses to acute high-intensity interval exercise in humans. Horm Mol Biol Clin Investig 2018; 35:/j/hmbci.ahead-of-print/hmbci-2018-0008/hmbci-2018-0008.xml. [PMID: 29558345 DOI: 10.1515/hmbci-2018-0008] [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: 01/16/2018] [Accepted: 02/28/2018] [Indexed: 01/07/2023]
Abstract
Background The purpose of this study was to investigate irisin and myostatin responses to acute high-intensity interval exercise. Materials and methods Ten male professional kick-boxers aged between 18 and 24 years and 10 sedentary males with similar age and body weight participated in the present study. Participants performed 4 × 30-s Wingate test separated with 4 min of rest. Blood samples were taken immediately before and after exercise, and 3 and 6 h of recovery. Results and conclusion At rest, irisin levels were higher in the kick-boxers (p < 0.05). Immediately after the exercise, irisin levels were decreased in both groups (p < 0.05). A trend toward a return to baseline appeared after 3 h of recovery in the kick-boxers (p < 0.05). At rest, myostatin concentrations were not different between the groups (p > 0.05). Immediately after the exercise, myostatin levels were increased in both groups (p < 0.05). A trend toward a return to baseline appeared after 3 h of recovery in the kick-boxers (p < 0.05). Acute high-intensity interval exercise decreased irisin levels and increased myostatin levels.
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Affiliation(s)
- Banu Kabak
- Turkish Republic Ministry of Youth and Sports, Department of Health, Ankara, Turkey
| | - Muaz Belviranli
- Selçuk University, Faculty of Medicine, Department of Physiology, Division of Sports Physiology, Konya, Turkey, Phone: +90 332 224 47 31, Fax: +90 332 224 48 08
| | - Nilsel Okudan
- Selçuk University, Faculty of Medicine, Department of Physiology, Division of Sports Physiology, Konya, Turkey
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