1
|
Song BX, Azhar L, Koo GKY, Marzolini S, Gallagher D, Swardfager W, Chen C, Ba J, Herrmann N, Lanctôt KL. The effect of exercise on blood concentrations of angiogenesis markers in older adults: A systematic review and meta-analysis. Neurobiol Aging 2024; 135:15-25. [PMID: 38147807 DOI: 10.1016/j.neurobiolaging.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 11/24/2023] [Accepted: 12/15/2023] [Indexed: 12/28/2023]
Abstract
Impaired angiogenesis is associated with cognitive decline in older adults. While exercise has been broadly associated with increased angiogenesis, the relevant mechanisms in older adults are not clear. Here, we present a systematic review and meta-analysis on the relationship between exercise and specific blood angiogenesis markers in older adults to better understand the relevant mechanisms. MEDLINE, Embase, and Cochrane CENTRAL were searched for original reports of angiogenesis markers' concentrations in blood before and after exercise in older adults (≥50 years). Heterogeneity was investigated using sub-group analyses and meta-regressions. Of the 44 articles included in the review, 38 were included in the meta-analyses for five markers: vascular endothelial growth factor (VEGF), e-selectin (CD62E), endostatin, fibroblast growth factor 2, and matrix metallopeptidase-9. VEGF levels were higher (SMD[95%CI]= 0.18[0.03, 0.34], and CD62E levels were lower (SMD[95%CI]= -0.72[-1.42, -0.03], p = 0.04) after exercise. No other markers were altered. Although more studies are needed, changes in angiogenesis markers may help explain the beneficial effects of exercise on angiogenesis in older adults.
Collapse
Affiliation(s)
- Bing Xin Song
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, ON, Canada; Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Laiba Azhar
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, ON, Canada; Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Grace Ka Yi Koo
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, ON, Canada; Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Susan Marzolini
- KITE - Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada
| | - Damien Gallagher
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Division of Geriatric Psychiatry, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Walter Swardfager
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, ON, Canada; Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada; Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Clara Chen
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Joycelyn Ba
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Nathan Herrmann
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Division of Geriatric Psychiatry, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, ON, Canada; Toronto Dementia Research Alliance, Toronto, ON, Canada
| | - Krista L Lanctôt
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, ON, Canada; Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada; KITE - Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Division of Geriatric Psychiatry, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, ON, Canada; Toronto Dementia Research Alliance, Toronto, ON, Canada.
| |
Collapse
|
2
|
Lourenço AP, Freitas C, Timóteo MH, Soares M, Figueiredo JP, Osório N, Valado A, Trapali M, Pereira T, Caseiro A. Laboratory Assessment of the Effects of AGA@4life Multidisciplinary Intervention on the Inflammatory Profile, MMPs, and TIMPs in a Geriatric Population. Healthcare (Basel) 2024; 12:509. [PMID: 38470620 PMCID: PMC10931401 DOI: 10.3390/healthcare12050509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/14/2024] Open
Abstract
In recent years, the world's aging population has increased, contributing to the development of age-related pathologies, which have been aggravated by physical inactivity and excessive fat intake. This study aimed to evaluate the effect of implementing a nutritional program (control group-CG) combined with exercise (intervention group-IG) on the inflammatory profile, MMPs, and TIMPs in a group of 34 elderly participants (IG, n = 18; CG, n = 16). Participants underwent a full multidisciplinary diagnostic evaluation (T0), with the gathering of clinical information and biochemical and hematological determinations being re-evaluated eight weeks later (T1). A diet manual was made, which provided a selection of different types of diets resulting from the nutritional needs of the different users at the center. The aerobic exercise consisted of two sessions per week with a total duration of 1 h. The laboratory evaluation was performed by slot blot. Statistical analysis included a paired sample t-test and Spearman's correlation coefficient. We observed that in the IG, there was a significant increase at T1 of TNF-α (p < 0.05) and MMP-2 (p < 0.05), without changes in IL-6 and MMP-9, showing that the intervention did not cause an exacerbated inflammatory response in exercised elderly people. The intervention program implemented showed potential to contribute to better active aging strategies, taking advantage of the known benefits of exercise without inducing a harmful inflammatory response in elderly participants.
Collapse
Affiliation(s)
- Ana Patrícia Lourenço
- Polytechnic Institute of Coimbra, Coimbra Health School, Biomedical Laboratory Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal; (C.F.); (M.S.); (N.O.); (A.V.); (A.C.)
| | - Catarina Freitas
- Polytechnic Institute of Coimbra, Coimbra Health School, Biomedical Laboratory Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal; (C.F.); (M.S.); (N.O.); (A.V.); (A.C.)
| | - Maria Helena Timóteo
- Polytechnic Institute of Coimbra, Coimbra Health School, Biomedical Laboratory Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal; (C.F.); (M.S.); (N.O.); (A.V.); (A.C.)
| | - Maria Soares
- Polytechnic Institute of Coimbra, Coimbra Health School, Biomedical Laboratory Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal; (C.F.); (M.S.); (N.O.); (A.V.); (A.C.)
| | - João Paulo Figueiredo
- Polytechnic Institute of Coimbra, Coimbra Health School, Social and Human Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal;
| | - Nádia Osório
- Polytechnic Institute of Coimbra, Coimbra Health School, Biomedical Laboratory Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal; (C.F.); (M.S.); (N.O.); (A.V.); (A.C.)
- LABINSAÚDE—Research Laboratory for Applied Health Sciences, Polytechnic Institute of Coimbra, Coimbra Health School, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal;
| | - Ana Valado
- Polytechnic Institute of Coimbra, Coimbra Health School, Biomedical Laboratory Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal; (C.F.); (M.S.); (N.O.); (A.V.); (A.C.)
- LABINSAÚDE—Research Laboratory for Applied Health Sciences, Polytechnic Institute of Coimbra, Coimbra Health School, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal;
| | - Maria Trapali
- Laboratory of Chemistry, Biochemistry and Cosmetic Science, Department of Biomedical Medicine, University of West Attica, Ag. Spyridonos Str., 12243 Egaleo, Greece;
| | - Telmo Pereira
- LABINSAÚDE—Research Laboratory for Applied Health Sciences, Polytechnic Institute of Coimbra, Coimbra Health School, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal;
- Polytechnic Institute of Coimbra, Coimbra Health School, Clinical Physiology, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal
| | - Armando Caseiro
- Polytechnic Institute of Coimbra, Coimbra Health School, Biomedical Laboratory Sciences, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal; (C.F.); (M.S.); (N.O.); (A.V.); (A.C.)
- LABINSAÚDE—Research Laboratory for Applied Health Sciences, Polytechnic Institute of Coimbra, Coimbra Health School, Rua 5 de Outubro, S. Martinho do Bispo, 3046-854 Coimbra, Portugal;
| |
Collapse
|
3
|
Wu B, Shi L, Wu Y. PTEN Inhibitor Treatment Lowers Muscle Plasma Membrane Damage and Enhances Muscle ECM Homeostasis after High-Intensity Eccentric Exercise in Mice. Int J Mol Sci 2023; 24:9954. [PMID: 37373102 DOI: 10.3390/ijms24129954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/23/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Exercise-induced muscle damage (EIMD) is a common occurrence in athletes and can lead to delayed onset muscle soreness, reduced athletic performance, and an increased risk of secondary injury. EIMD is a complex process involving oxidative stress, inflammation, and various cellular signaling pathways. Timely and effective repair of the extracellular matrix (ECM) and plasma membrane (PM) damage is critical for recovery from EIMD. Recent studies have shown that the targeted inhibition of phosphatase and tension homolog (PTEN) in skeletal muscles can enhance the ECM environment and reduce membrane damage in Duchenne muscular dystrophy (DMD) mice. However, the effects of PTEN inhibition on EIMD are unknown. Therefore, the present study aimed to investigate the potential therapeutic effects of VO-OHpic (VO), a PTEN inhibitor, on EIMD symptoms and underlying mechanisms. Our findings indicate that VO treatment effectively enhances skeletal muscle function and reduces strength loss during EIMD by upregulating membrane repair signals related to MG53 and ECM repair signals related to the tissue inhibitor of metalloproteinases (TIMPs) and matrix metalloproteinase (MMPs). These results highlight the potential of pharmacological PTEN inhibition as a promising therapeutic approach for EIMD.
Collapse
Affiliation(s)
- Baile Wu
- Department of Exercise Physiology, School of Sports Science, Beijing Sport University, Beijing 100084, China
- Key Laboratory of Sports and Physical Health of the Ministry of Education, Beijing Sport University, Beijing 100084, China
| | - Lijun Shi
- Department of Exercise Physiology, School of Sports Science, Beijing Sport University, Beijing 100084, China
| | - Ying Wu
- Department of Exercise Physiology, School of Sports Science, Beijing Sport University, Beijing 100084, China
| |
Collapse
|
4
|
Mavropalias G, Boppart M, Usher KM, Grounds MD, Nosaka K, Blazevich AJ. Exercise builds the scaffold of life: muscle extracellular matrix biomarker responses to physical activity, inactivity, and aging. Biol Rev Camb Philos Soc 2023; 98:481-519. [PMID: 36412213 DOI: 10.1111/brv.12916] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 10/23/2022] [Accepted: 10/25/2022] [Indexed: 11/23/2022]
Abstract
Skeletal muscle extracellular matrix (ECM) is critical for muscle force production and the regulation of important physiological processes during growth, regeneration, and remodelling. ECM remodelling is a tightly orchestrated process, sensitive to multi-directional tensile and compressive stresses and damaging stimuli, and its assessment can convey important information on rehabilitation effectiveness, injury, and disease. Despite its profound importance, ECM biomarkers are underused in studies examining the effects of exercise, disuse, or aging on muscle function, growth, and structure. This review examines patterns of short- and long-term changes in the synthesis and concentrations of ECM markers in biofluids and tissues, which may be useful for describing the time course of ECM remodelling following physical activity and disuse. Forces imposed on the ECM during physical activity critically affect cell signalling while disuse causes non-optimal adaptations, including connective tissue proliferation. The goal of this review is to inform researchers, and rehabilitation, medical, and exercise practitioners better about the role of ECM biomarkers in research and clinical environments to accelerate the development of targeted physical activity treatments, improve ECM status assessment, and enhance function in aging, injury, and disease.
Collapse
Affiliation(s)
- Georgios Mavropalias
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
- Centre for Molecular Medicine and Innovative Therapeutics, and Centre for Healthy Aging, Health Futures Institute, Murdoch University, Murdoch, WA, 6150, Australia
- Discipline of Exercise Science, Murdoch University, Murdoch, WA, 6150, Australia
| | - Marni Boppart
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, 1206 South Fourth St, Urbana, IL, 61801, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana- Champaign, 405 N. Mathews Avenue, Urbana, IL, 61801, USA
| | - Kayley M Usher
- School of Biomedical Sciences, University of Western Australia (M504), 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Miranda D Grounds
- School of Human Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Kazunori Nosaka
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| | - Anthony J Blazevich
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| |
Collapse
|
5
|
Song BX, Azhar L, Koo GKY, Marzolini S, Gallagher D, Swardfager W, Chen C, Ba J, Herrmann N, Lanctôt K. The effect of exercise on blood concentrations of angiogenesis markers in older adults: a systematic review and meta-analysis. RESEARCH SQUARE 2023:rs.3.rs-2468576. [PMID: 36711740 PMCID: PMC9882692 DOI: 10.21203/rs.3.rs-2468576/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Background Physical exercise has positive impacts on health and can improve angiogenesis, which is impaired during aging, but the underlying mechanisms of benefit are unclear. This meta-analysis and systematic review investigated the effects of exercise on several peripheral angiogenesis markers in older adults to better understand the relationship between exercise and angiogenesis. Methods MEDLINE, Embase, and Cochrane CENTRAL were searched for original, peer-reviewed reports of peripheral concentrations of angiogenesis markers before and after exercise interventions in older adults (> 50 years). The risk of bias was assessed with standardized criteria. Standardized mean differences (SMD) with 95% confidence intervals (CIs) were calculated from random-effects models. Publication bias was assessed with Egger's test, funnel plots, and trim-and-fill. A priori subgroup analyses and meta-regressions were performed to investigate heterogeneity where possible. Results Of the 44 articles included in the review, 38 were included in meta-analyses for five proteins. Vascular endothelial growth factor (VEGF) was found to be higher after exercise (SMD[95%CI] = 0.18[0.03, 0.34], p = 0.02), and e-selectin (CD62E) was found to be lower after exercise (SMD[95%CI]= -0.72[-1.42, -0.03], p = 0.04). Endostatin (SMD[95%CI] = 0.28[-0.56, 1.11], p = 0.5), fibroblast growth factor 2 (SMD[95%CI] = 0.03[-0.18, 0.23], p = 0.8), and matrix metallopeptidase-9 (SMD[95%CI] = -0.26[-0.97, 0.45], p = 0.5) levels did not change after exercise. Conclusions Of the five angiogenesis blood markers evaluated in this meta-analysis, only VEGF and CD62E changed with exercise. Although more studies are needed, changes in angiogenesis markers may explain the beneficial effects of exercise on angiogenesis and health in older adults.
Collapse
|
6
|
Nogueira ME, Sousa Neto IV, Motta-Santos D, Cantuária APDC, Lima SMDF, Rezende TMB, Santana HADP, Petriz BA, Marqueti RDC, Almeida JA. High-protein diet associated with resistance training reduces cardiac TNF-α levels and up-regulates MMP-2 activity in rats. Arch Physiol Biochem 2022; 128:1630-1636. [PMID: 32686511 DOI: 10.1080/13813455.2020.1787456] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The consumption of high-protein diets (HPD) is associated with resistance training (RT) due to effects on metabolism. However, little is known about these effects on cardiac tissue. This study aimed to investigate effects of HPD and RT on cardiac biomarkers. 18 rats were divided into normo-protein (NPD), and HPD groups: NPD-Control, NPD-RT, HPD-Control, and HPD-RT. Interleukin-6 (IL-6), tumour necrosis factor alpha (TNF-a), nitric oxide (NO), activity of metalloproteinase-2 (MMP-2), and vascular factor (VEGF) were analysed. RT was effective in regulating body weight, increasing strength, and reducing food consumption (p < .05). HPD induces higher levels of interleukin 6 (p = .0169), and lowers NO (p < .0001). When associated with RT, the HPD decreases levels of tumour necrosis factor alpha, while enhances NO, and MMP activity (p < .05). The association of RT with HDP decreases inflammatory parameters and indicates an enhancement in the molecular parameters of cardiac tissue.
Collapse
Affiliation(s)
- Murilo Esteves Nogueira
- Graduate Program in Health and Development in the Midwest Region, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Ivo Vieira Sousa Neto
- Graduate Program of Sciences and Technology of Health, University of Brasilia, Distrito Federal, Brazil
| | - Daisy Motta-Santos
- Sports Science Postgraduate Program, Sports Department, EEFFTO, UFMG, Belo Horizonte, Brazil
| | - Ana Paula de Castro Cantuária
- Graduate Program in Genomics Science and Biotechnology, Catholic University of Brasilia, Brasília, Brazil
- Post graduation of Health Sciences, University of Brasilia, Distrito Federal, Brazil
| | - Stella Maris de Freitas Lima
- Graduate Program in Genomics Science and Biotechnology, Catholic University of Brasilia, Brasília, Brazil
- Dental course, Catholic University of Brasilia, Brasília, Brazil
| | - Taia Maria Berto Rezende
- Graduate Program in Genomics Science and Biotechnology, Catholic University of Brasilia, Brasília, Brazil
- Post graduation of Health Sciences, University of Brasilia, Distrito Federal, Brazil
- Dental course, Catholic University of Brasilia, Brasília, Brazil
| | - Hugo Alexandre de Paula Santana
- Research in Exercise and Nutrition in Health and Sports Performance - PENSARE, Graduate Program in Movement Sciences, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Bernardo Assis Petriz
- Graduate Program in Genomics Science and Biotechnology, Catholic University of Brasilia, Brasília, Brazil
- Laboratory of Molecular Exercise Physiology, University Center - UDF, Brasília, Brazil
- Graduate Program in Health Promotion, University of Franca - UNIFRAN, Franca, Brazil
| | - Rita de Cássia Marqueti
- Graduate Program of Sciences and Technology of Health, University of Brasilia, Distrito Federal, Brazil
- Graduate Program of Rehabilitation Sciences, University of Brasilia, Distrito Federal, Brazil
| | - Jeeser Alves Almeida
- Graduate Program in Health and Development in the Midwest Region, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
- Research in Exercise and Nutrition in Health and Sports Performance - PENSARE, Graduate Program in Movement Sciences, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| |
Collapse
|
7
|
Engel T, Schraplau A, Wochatz M, Kopinski S, Sonnenburg D, Schomoeller A, Risch L, Kaplick H, Mayer F. Feasability of An Eccentric Isokinetic Protocol to Induce Trunk
Muscle Damage: A Pilot Study. Sports Med Int Open 2022; 6:E9-E17. [PMID: 35313534 PMCID: PMC8934203 DOI: 10.1055/a-1757-6724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/22/2021] [Indexed: 11/02/2022] Open
Abstract
AbstractEccentric exercise is discussed as a treatment option for clinical populations,
but specific responses in terms of muscle damage and systemic inflammation after
repeated loading of large muscle groups have not been conclusively
characterized. Therefore, this study tested the feasibility of an isokinetic
protocol for repeated maximum eccentric loading of the trunk muscles. Nine
asymptomatic participants (5 f/4 m;
34±6 yrs; 175±13 cm; 76±17 kg)
performed three isokinetic 2-minute all-out trunk strength tests (1x concentric
(CON), 2x eccentric (ECC1, ECC2), 2 weeks apart; flexion/extension,
60°/s, ROM 55°). Outcomes were peak torque, torque
decline, total work, and indicators of muscle damage and inflammation (over
168 h). Statistics were done using the Friedman test (Dunn’s
post-test). For ECC1 and ECC2, peak torque and total work were increased and
torque decline reduced compared to CON. Repeated ECC bouts yielded unaltered
torque and work outcomes. Muscle damage markers were highest after ECC1
(soreness 48 h, creatine kinase 72 h; p<0.05). Their
overall responses (area under the curve) were abolished post-ECC2 compared to
post-ECC1 (p<0.05). Interleukin-6 was higher post-ECC1 than CON, and
attenuated post-ECC2 (p>0.05). Interleukin-10 and tumor necrosis
factor-α were not detectable. All markers showed high inter-individual
variability. The protocol was feasible to induce muscle damage indicators after
exercising a large muscle group, but the pilot results indicated only weak
systemic inflammatory responses in asymptomatic adults.
Collapse
Affiliation(s)
- Tilman Engel
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Anne Schraplau
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Monique Wochatz
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Stephan Kopinski
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Dominik Sonnenburg
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Anne Schomoeller
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Lucie Risch
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Hannes Kaplick
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| | - Frank Mayer
- University Outpatient Clinic, Sports Medicine & Sports
Orthopaedics, University of Potsdam, Potsdam, Germany
| |
Collapse
|
8
|
Kon M, Ikeda T, Homma T, Suzuki Y. Responses of Angiogenic Regulators to Resistance Exercise Under Systemic Hypoxia. J Strength Cond Res 2021; 35:436-441. [PMID: 30199444 DOI: 10.1519/jsc.0000000000002695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Kon, M, Ikeda, T, Homma, T, and Suzuki, Y. Responses of angiogenic regulators to resistance exercise under systemic hypoxia. J Strength Cond Res 35(2): 436-441, 2021-Resistance exercise and hypoxia powerfully affect the secretions of angiogenic regulators. However, the effects of resistance exercise under acute systemic hypoxia on circulating levels of angiogenic regulators are unknown. Therefore, we investigated the effects of resistance exercise under systemic hypoxia on angiogenic regulator responses. Twelve healthy male subjects completed 2 experimental trials: (a) resistance exercise under normoxia (NRE), and (b) resistance exercise under systemic hypoxia (13% oxygen) (HRE) using a hypoxic generator. The subjects performed 2 consecutive resistance exercises (bench press and bilateral leg press), consisting of 5 sets with 10 repetitions at 70% of 1 repetition maximum with a 1-minute rest between sets. Serum vascular endothelial growth factor (VEGF), matrix metalloproteinase (MMP)-2, MMP-9, and endostatin concentrations were measured before exercise (and before exposure to hypoxia in the HRE trial) and at 0, 15, and 30 minutes after the resistance exercises. In both trials, serum VEGF, MMP-2, MMP-9, and endostatin concentrations significantly increased after the exercises compared with preexercise values (p < 0.05). At 0 minutes after exercise, the percentage change in VEGF concentration was significantly higher in the HRE trial compared with that in the NRE trial (p < 0.05). However, the exercise-induced changes in MMP-2, MMP-9, and endostatin concentrations did not differ between trials. The present results demonstrate that acute systemic hypoxia induces a greater resistance exercise-induced VEGF response, suggesting that hypoxia plays an important role in increasing the VEGF response to a bout of resistance exercise.
Collapse
Affiliation(s)
- Michihiro Kon
- School of International Liberal Studies, Chukyo University, Nagoya, Japan
| | - Tatsuaki Ikeda
- Department of Sports Sciences, Japan Institute of Sports Sciences, Tokyo, Japan ; and
| | - Toshiyuki Homma
- Faculty of Sports & Health Science, Department of Sports Science, Daito Bunka University, Saitama, Japan
| | - Yasuhiro Suzuki
- Department of Sports Sciences, Japan Institute of Sports Sciences, Tokyo, Japan ; and
| |
Collapse
|
9
|
Gómez-Rubio P, Trapero I. The Beneficial Effect of Physical Exercise on Inflammatory Makers in Older Individuals. Endocr Metab Immune Disord Drug Targets 2020; 21:1008-1016. [PMID: 32504508 DOI: 10.2174/1871530320666200606225357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/17/2020] [Accepted: 04/24/2020] [Indexed: 11/22/2022]
Abstract
Old age is associated with a loss of motor functions and a general progressive decline in cognitive functions. Physical exercise is one of the ways in which inflammatory levels in general can be reduced, and therefore physical exercise can be considered a biological aging decelerator. In this article, we examine the relationships between physical exercise and inflammatory markers reported for the different physical exercise protocols that have been used in studies with older individuals, as well as the effects of these regimens. The different types of exercises programmed, and methods used to implement them were very heterogeneous in the articles we analysed. Both, the aerobic exercise and resistance training protocols produced a decrease in plasma levels of IL-6, CRP and TNF-α, and an increase of IL-10 plasma levels as a chronic effect. However, the acute-response of physical exercise appeared to be an initial increase in IL-6 expression and plasma IL-6 levels. Continuing with these exercise programs usually subsequently achieved a chronic response in which there was a decrease in both the basal levels of IL-6, CRP and TNF-α, and the IL-6 produced as acute responses. Regardless of the type of exercise performed, it seems that the exercise parameters, intensity, duration, subject variables, fitness, and level of inflammation are key factors in achieving the expected balance between proinflammatory and anti-inflammatory cytokines.
Collapse
Affiliation(s)
| | - Isabel Trapero
- Department of Nursing, University of Valencia, Valencia, Spain
| |
Collapse
|
10
|
Neidert LE, Al-Tarhuni M, Goldman D, Kluess HA, Jackson DN. Endogenous dipeptidyl peptidase IV modulates skeletal muscle arteriolar diameter in rats. Physiol Rep 2019; 6. [PMID: 29380955 PMCID: PMC5789721 DOI: 10.14814/phy2.13564] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 12/06/2017] [Accepted: 12/09/2017] [Indexed: 01/17/2023] Open
Abstract
The purpose of this study is to investigate that dipeptidyl peptidase IV (DPP‐IV) released from skeletal and vascular smooth muscle can increase arteriolar diameter in a skeletal muscle vascular bed by reducing neuropeptide Y (NPY)‐mediated vasoconstriction. We hypothesized that the effect of myokine DPP‐IV would be greatest in the smallest and least in the largest arterioles. Eight male Sprague Dawley rats (age 7–9 weeks; mass, mean ± SD: 258 ± 41 g) were anesthetized and the gluteus maximus dissected in situ for intravital microscopy analysis of arteriolar diameter of the vascular network. Computational modeling was performed on the diameter measurements to evaluate the overall impact of diameter changes on network resistance and flow distribution. In the first set of experiments, whey protein isolate powder was added to physiological saline solution, put in a heated reservoir, and applied to the preparation to induce release of DPP‐IV from the muscle. This resulted in an order‐dependent increase in arteriolar diameter, with the largest change in the 6A arterioles (63% more reactive than 1A arterioles; P < 0.05). This effect was abolished by adding the DPP‐IV inhibitor, Diprotin A. To test if the DPP‐IV released was affecting NPY‐mediated vasoconstriction, we applied NPY and whey protein, which resulted in attenuated vasoconstriction. These findings suggest that DPP‐IV is released from muscle and has a unique effect on blood flow, which appears to act on NPY to attenuate vasoconstriction. The findings suggest that DPP‐IV released from the skeletal or smooth muscle can alter muscle blood flow.
Collapse
Affiliation(s)
| | - Mohammed Al-Tarhuni
- Department of Medical Biophysics, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Daniel Goldman
- Department of Medical Biophysics, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Heidi A Kluess
- School of Kinesiology, Auburn University, Auburn, Alabama
| | - Dwayne N Jackson
- Department of Medical Biophysics, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| |
Collapse
|
11
|
Knox A. Arterial Aging, Metalloproteinase Regulation, and the Potential of Resistance Exercise. Curr Cardiol Rev 2018; 14:227-232. [PMID: 30068282 PMCID: PMC6300795 DOI: 10.2174/1573403x14666180801153801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/04/2018] [Accepted: 06/14/2018] [Indexed: 12/11/2022] Open
Abstract
Background Aging is a process that affects all living organisms. The transition through life elicits tissue specific alterations in the functional and structural capabilities of all physiological systems. In particular, the vasculature is vulnerable to aging specific adaptations which induces morphological changes and ultimately increases the risk of pathological states. Matrix metalloproteinases are a group of extremely active enzymes that regulate the age-associated structural changes of the vasculature which has been regarded as the hallmark of arterial aging. Although this process in unavoidable, the structural and functional changes to the vasculature that occur as a result of advancing age can be positively or negatively influenced by our lifestyle choices. Conclusion Exercise training has profound effects on the age-associated changes of the arteries which have been shown to be beneficial in offsetting the detrimental responses of aging. This review provides a brief synopsis of the matrix metalloproteinase induced alterations of the arteria during aging and highlights the potential of resistance exercise to influence such changes.
Collapse
Affiliation(s)
- Allan Knox
- Exercise Science Department, California Lutheran University, 60 Olsen Road, Thousand Oaks, CA, United States
| |
Collapse
|
12
|
Julian V, Thivel D, Costes F, Touron J, Boirie Y, Pereira B, Perrault H, Duclos M, Richard R. Eccentric Training Improves Body Composition by Inducing Mechanical and Metabolic Adaptations: A Promising Approach for Overweight and Obese Individuals. Front Physiol 2018; 9:1013. [PMID: 30131705 PMCID: PMC6090036 DOI: 10.3389/fphys.2018.01013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 07/09/2018] [Indexed: 12/04/2022] Open
Abstract
Skeletal muscle generates force by either shortening (concentrically) or lengthening (eccentrically). Eccentric (ECC) exercise is characterized by a lower metabolic demand and requires less muscle activity than concentric (CON) exercise at the same level of exerted force. However, the specific effect of ECC training vs. CON training on lean and fat mass remains underexplored. The first aim of this paper was to review the available evidence regarding the effects of ECC training on whole body and segmental lean and fat mass and, when possible, compare these with the effects of CON training. The second aim was to provide some insights into the main mechanical, physiological, and metabolic adaptations of ECC training that contribute to its effects on body composition. The third aim was to determine the beneficial effects of ECC exercise on health-related parameters in overweight and obese patients. ECC training is an effective modality to improve lean mass, but when matched for load or work, the difference between ECC and CON trainings seems unclear. A few studies reported that ECC training is also efficient at reducing fat mass. By increasing post-exercise resting energy expenditure, modifying metabolic substrate, and improving both blood lipid profile and insulin resistance, ECC training is a potential exercise modality for individuals with chronic conditions such as those who are overweight and obese. Further investigations using standardized experimental conditions, examining not only segmental but also whole body composition, are required to compare ECC and CON trainings.
Collapse
Affiliation(s)
- Valérie Julian
- Service de Médecine du Sport et Explorations Fonctionnelles, CHU Clermont-Ferrand, INRA, CRNH, Université Clermont Auvergne, Clermont-Ferrand, France
| | - David Thivel
- Laboratoire AME2P, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Frédéric Costes
- Service de Médecine du Sport et Explorations Fonctionnelles, CHU Clermont-Ferrand, INRA, CRNH, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Julianne Touron
- INRA, CRNH, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Yves Boirie
- Service de Nutrition Clinique, CHU Clermont-Ferrand, INRA, CRNH, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Bruno Pereira
- Service de Biostatistique, CHU Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Hélène Perrault
- Faculté des Sciences de la Santé, Université d'Ottawa, Ottawa, ON, Canada
| | - Martine Duclos
- Service de Médecine du Sport et Explorations Fonctionnelles, CHU Clermont-Ferrand, INRA, CRNH, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Ruddy Richard
- Service de Médecine du Sport et Explorations Fonctionnelles, CHU Clermont-Ferrand, INRA, CRNH, Université Clermont Auvergne, Clermont-Ferrand, France
| |
Collapse
|
13
|
Orsano VSM, de Moraes WMAM, de Sousa NMF, de Moura FC, Tibana RA, Silva ADO, Schwerz Funghetto S, Schoenfeld BJ, Prestes J. Comparison of the acute effects of traditional versus high velocity resistance training on metabolic, cardiovascular, and psychophysiological responses in elderly hypertensive women. Clin Interv Aging 2018; 13:1331-1340. [PMID: 30104867 PMCID: PMC6074841 DOI: 10.2147/cia.s164108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Objectives The aim of the present study was to compare the acute effects of traditional resistance training (RT) versus high velocity RT (HVRT) on metabolic, cardiovascular, and psychophysiological responses in elderly hypertensive women. Methods Fifteen elderly women (mean age ± standard deviation, 67.1±6.9 years) classified as having hypertension stage 1 or 2 were randomly allocated to complete traditional RT or HVRT; 1 week later, subjects allocated to RT completed the HVRT session and vice-versa. Heart rate, blood pressure, affective response, perceived effort, and blood samples analyzing lactate, nitrate, nitrite, oxidative damage (thiobarbituric acid reactive substances [TBARS]), and 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid equivalent antioxidant capacity (TEAC) collected before and after training sessions were assessed. Nutritional counseling was provided regarding nutrients that could affect cardiovascular and nitrate/nitrite analysis. Results Systolic blood pressure was not statistically different (p>0.05) between conditions at the beginning and during 30 minutes after sessions. Diastolic blood pressure, rate pressure product, and heart rate were not statistically different (p>0.05) between conditions at the beginning and during 45 minutes after sessions. Nitric oxide was significantly higher (p<0.0005) for HVRT compared to RT after 30 minutes of exercise. TBARS and TEAC were significantly higher (p<0.05) for HVRT compared with RT only immediately after exercise. There were no differences for psychophysiological variables between protocols. Conclusion The acute cardiovascular and metabolic responses, including oxidative stress, are transient and within normal values. Taken together with the positive affective responses, both HVRT and RT with this intensity and volume seem to be safe for elderly hypertensive women under medication.
Collapse
Affiliation(s)
- Vânia Silva Macedo Orsano
- Department of Physical Education, Federal University of Piaui (UFPI), Piauí, Brazil.,Post Graduation Program on Physical Education, Catholic University of Brasilia (UCB), Brasília, Brazil,
| | | | | | - Felipe Carmo de Moura
- Post Graduation Program on Physical Education, Catholic University of Brasilia (UCB), Brasília, Brazil,
| | - Ramires Alsamir Tibana
- Department of Physical Education, Federal University of Mato Grosso (UFMT), Mato Grosso, Brazil
| | | | | | | | - Jonato Prestes
- Post Graduation Program on Physical Education, Catholic University of Brasilia (UCB), Brasília, Brazil,
| |
Collapse
|
14
|
de Sousa Neto IV, Durigan JLQ, Guzzoni V, Tibana RA, Prestes J, de Araujo HSS, Marqueti RDC. Effects of Resistance Training on Matrix Metalloproteinase Activity in Skeletal Muscles and Blood Circulation During Aging. Front Physiol 2018; 9:190. [PMID: 29593554 PMCID: PMC5857587 DOI: 10.3389/fphys.2018.00190] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 02/23/2018] [Indexed: 12/22/2022] Open
Abstract
Aging is a complex, multifactorial process characterized by the accumulation of deleterious effects, including biochemical adaptations of the extracellular matrix (ECM). The purpose of this study was to investigate the effects of 12 weeks of resistance training (RT) on metalloproteinase 2 (MMP-2) activity in skeletal muscles and, MMP-2 and MMP-9 activity in the blood circulation of young and old rats. Twenty-eight Wistar rats were randomly divided into four groups (n = 7 per group): young sedentary (YS); young trained (YT), old sedentary (OS), and old trained (OT). The stair climbing RT consisted of one training session every 2 other day, with 8–12 dynamic movements per climb. The animals were euthanized 48 h after the end of the experimental period. MMP-2 and MMP-9 activity was measured by zymography. There was higher active MMP-2 activity in the lateral gastrocnemius and flexor digitorum profundus muscles in the OT group when compared to the OS, YS, and YT groups (p ≤ 0.001). Moreover, there was higher active MMP-2 activity in the medial gastrocnemius muscle in the OT group when compared to the YS and YT groups (p ≤ 0.001). The YS group presented lower active MMP-2 activity in the soleus muscle than the YT, OS, OT groups (p ≤ 0.001). With respect to active MMP-2/9 activity in the bloodstream, the OT group displayed significantly reduced activity (p ≤ 0.001) when compared to YS and YT groups. In conclusion, RT up-regulates MMP-2 activity in aging muscles, while down-regulating MMP-2 and MMP-9 in the blood circulation, suggesting that it may be a useful tool for the maintenance of ECM remodeling.
Collapse
Affiliation(s)
- Ivo V de Sousa Neto
- Graduate Program of Sciences and Technology of Health, University of Brasilia, Brasília, Brazil
| | - João L Q Durigan
- Graduate Program of Sciences and Technology of Health, University of Brasilia, Brasília, Brazil
| | - Vinicius Guzzoni
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
| | - Ramires A Tibana
- Graduate Program of Physical Education, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Jonato Prestes
- Graduate Program of Physical Education, Catholic University of Brasilia, Brasília, Brazil
| | | | - Rita de Cássia Marqueti
- Graduate Program of Sciences and Technology of Health, University of Brasilia, Brasília, Brazil
| |
Collapse
|
15
|
Abstract
BACKGROUND Matrix metalloproteinases (MMPs), particularly gelatinase A (MMP-2) and gelatinase B (MMP-9), as well as their tissue inhibitors (TIMP-1 and TIMP-2), are involved in the development of skeletal muscle tissue, in the repair process after muscle injury and in the adaptive modifications induced by physical exercise in skeletal muscle. This paper aims at reviewing results from human studies that investigated the role of gelatinases and their inhibitors in skeletal muscle response to acute physical exercise or training. METHODS Electronic databases PubMed/MEDLINE, Scopus and Web of Science were searched for papers published between January 2000 and February 2017. The papers were eligible when reporting human studies in which MMP-2 and/or MMP-9 and/or the inhibitors TIMP-1/TIMP-2 were evaluated, in blood or muscular tissue, before and after acute physical exercise or before and after a period of structured physical training. We included studies on healthy subjects and patients with chronic metabolic diseases (obesity, diabetes mellitus, metabolic syndrome-MS) or asymptomatic coronary artery disease. We excluded studies on patients with neurological, rheumatologic or neoplastic diseases. RESULTS Studies conducted on muscle biopsies showed an early stimulation of MMP-9 gene transcription as a result of acute exercise, whereas MMP-2 and TIMP transcription resulted from regular repetition of exercise over time. Studies on serum or plasma level of gelatinases and their inhibitors showed an early release of MMP-9 after acute exercise of sufficient intensity, while data on MMP-2 and TIMP were more contrasting. Most of the studies dealing with the effect of training indicated a trend toward reduction in blood gelatinase levels, once again more clear for MMP-9. This result was related to an anti-inflammatory effect of regular exercise and was more evident when training consisted of aerobic activities. This study has limitations: as the initial selection was done through titles and abstracts, incomplete retrieval cannot be excluded, as well as we cannot exclude bias due to selective reporting within studies. CONCLUSION A better knowledge of the molecular events activated by different types of acute exercise and regular training could be of great relevance in order to maximize the benefits of physical activity in healthy subjects and patients.
Collapse
Affiliation(s)
- Rosalia Lo Presti
- Dipartimento di Scienze Psicologiche, Pedagogiche e della Formazione
| | - Eugenia Hopps
- Dipartimento Biomedico di Medicina Interna e Specialistica Università degli Studi di Palermo, Palermo, Italy
| | - Gregorio Caimi
- Dipartimento Biomedico di Medicina Interna e Specialistica Università degli Studi di Palermo, Palermo, Italy
| |
Collapse
|
16
|
Kim J, Lee J. Matrix metalloproteinase and tissue inhibitor of metalloproteinase responses to muscle damage after eccentric exercise. J Exerc Rehabil 2016; 12:260-5. [PMID: 27656621 PMCID: PMC5031380 DOI: 10.12965/jer.1632640.320] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 07/14/2016] [Indexed: 11/22/2022] Open
Abstract
High-intensity eccentric exercise is known to induce muscle damage leading to inflammatory responses and extracellular matrix (ECM) degradation. These degradation processes involve enzymes such as matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinases (TIMPs). MMPs are calcium and zinc-dependent proteolytic enzymes that play a role in ECM degradation and recruitment of inflammatory and myogenic cells into the damaged site. In contrast, TIMPs inhibit MMP-induced ECM degradation to maintain normal homeostasis in ECM. Recently, several studies have examined the process of muscle remodeling and the roles of ECM, MMPs, and TIMPs in exercise-induced muscle damage. However, the results of these studies are not inconsistent. In the present mini-review, we will discuss the responses of MMP and TIMP to eccentric exercise based on the literature review.
Collapse
Affiliation(s)
- Jooyoung Kim
- Sport, Health, and Rehabilitation Major, Kookmin University, Seoul, Korea
| | - Joohyung Lee
- Sport, Health, and Rehabilitation Major, Kookmin University, Seoul, Korea
| |
Collapse
|
17
|
Abstract
Matrix metalloproteinases (MMPs) are zinc- and calcium-dependent endoproteinases that have the ability to break down extracellular matrix. The large range of MMPs’ functions widens their spectrum of potential role as activators or inhibitors in tissue remodeling, cardiovascular diseases, and obesity. In particular, MMP-1, -2, and -9 may be associated with exercise and obesity. Thus, the current study reviewed the effects of different types of exercise (resistance and aerobic) on MMP-1, -2, and -9. Previous studies report that the response of MMP-2 and -9 to resistance exercise is dependent upon the length of exercise training, since long-term resistance exercise training increased both MMP-2 and -9, whereas acute bout of resistance exercise decreased these MMPs. Aerobic exercise produces an inconsistent result on MMPs, although some studies showed a decrease in MMP-1. Obesity is related to a relatively lower level of MMP-9, indicating that an exercise-induced increase in MMP-9 may positively influence obesity. A comprehensive understanding of the relationship between exercise, obesity, and MMPs does not exist yet. Future studies examining the acute and chronic responses of these MMPs using different subject models may provide a better understanding of the molecular mechanisms that are associated with exercise, obesity, and cardiovascular disease.
Collapse
Affiliation(s)
| | - Yunsuk Koh
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
| |
Collapse
|