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Tan Z, Chen P, Zheng Y, Pan Y, Wang B, Zhao Y. Effect of blood flow-restricted resistance training on myocardial fibrosis in early spontaneously hypertensive rats. Front Cardiovasc Med 2023; 10:1101748. [PMID: 36818353 PMCID: PMC9928848 DOI: 10.3389/fcvm.2023.1101748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
Objective The purpose of this study was to explore the effect of blood flow-restricted resistance training on myocardial fibrosis in early spontaneously hypertensive rats (SHRs). Methods Four-week-old male Wistar-Kyoto rats and SHRs were randomly divided into the following groups: normal group (WKY), SHR control (SHR-SED) group, high-intensity resistance training (HIRT) group, low- and medium-intensity resistance training (LMIRT) group, and blood flow-restricted low- and medium-resistance training (BFRT) group. Body weight, hemodynamics, cardiac function, myocardial morphology and fibrosis, and the expression levels of transforming growth factor-beta1-Smad (TGFβ-1-Smad) pathway-related proteins in the myocardium were assessed. Results (1) BFRT lowered blood pressure significantly, decreased left ventricular wall thickness, and improved cardiac function. At the same time, BFRT was superior to traditional resistance training in lowering diastolic blood pressure, and was superior to HIRT in improving left ventricular compliance, reducing heart rate, and reducing left ventricular posterior wall and left ventricular mass (P < 0.05). (2) BFRT decreased collagen I and collagen fiber area in the myocardium, increased the collagen III area, and decreased the collagen I/III ratio (P < 0.05). BFRT produced a better proportion of myocardial collagen fibers than did traditional resistance training (P < 0.05). (3) In the myocardium of the BFRT group compared to the traditional resistance training group, the expression of TGFβ-1, Smad2/3/4, p-Smad2/3, CTGF, and TIMP1 was significantly downregulated, MMP2 and TIMP2 were significantly upregulated, the MMP/TIMP ratio significantly increased, and TGFβ-1 expression significantly decreased (P < 0.05). Conclusion BFRT inhibited the TGFβ-1-Smad pathway in the myocardium, downregulated the expression of CTGF, and regulated the balance between MMPs and TIMPs, thereby reducing myocardial fibrosis in SHR, and improving cardiac morphology and function. BFRT also lowered blood pressure, and achieved an effect of early prevention and treatment of hypertension. At the same time, BFRT was superior to traditional resistance training in reducing diastolic blood pressure and adjusting the proportion of myocardial collagen fibers.
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Affiliation(s)
- Zhaowen Tan
- School of Sports Science and Physical Education, Nanjing Normal University, Nanjing, Jiangsu, China
| | - Peiyou Chen
- School of Sports Science and Physical Education, Nanjing Normal University, Nanjing, Jiangsu, China
| | - Yuchan Zheng
- Nanjing Sport Institute, Nanjing, Jiangsu, China
| | - Ying Pan
- Nanjing Sport Institute, Nanjing, Jiangsu, China
| | - Baolong Wang
- School of Sports Science and Physical Education, Nanjing Normal University, Nanjing, Jiangsu, China
| | - Yan Zhao
- Nanjing Sport Institute, Nanjing, Jiangsu, China,*Correspondence: Yan Zhao,
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Exercise Training and Cardiac Rehabilitation in COVID-19 Patients with Cardiovascular Complications: State of Art. Life (Basel) 2021; 11:life11030259. [PMID: 33801080 PMCID: PMC8004041 DOI: 10.3390/life11030259] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 02/06/2023] Open
Abstract
Recent scientific literature has investigated the cardiovascular implications of COVID-19. The mechanisms of cardiovascular damage seem to involve the protein angiotensin-converting enzyme 2 (ACE2), to which severe acute respiratory syndrome (SARS) coronavirus-2 (CoV-2) binds to penetrate cells and other mechanisms, most of which are still under study. Cardiovascular sequelae of COVID-19 include heart failure, cardiomyopathy, acute coronary syndrome, arrhythmias, and venous thromboembolism. This article aims to collect scientific evidence by exploiting PubMed, Scopus, and Pedro databases to highlight the cardiovascular complications of COVID-19 and to define the physiotherapy treatment recommended for these patients. Exercise training (ET), an important part of cardiac rehabilitation, is a powerful tool in physiotherapy, capable of inducing significant changes in the cardiovascular system and functional in the recovery of endothelial dysfunction and for the containment of thromboembolic complications. In conclusion, due to the wide variety of possible exercise programs that can be obtained by combining intensity, duration, and speed in various ways, and by adjusting the program based on continuous patient monitoring, exercise training is well suited to the treatment of post-COVID patients with an impaired cardiovascular system of various degrees.
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Impact of Lifestyles (Diet and Exercise) on Vascular Health: Oxidative Stress and Endothelial Function. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1496462. [PMID: 33062134 PMCID: PMC7533760 DOI: 10.1155/2020/1496462] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 02/07/2023]
Abstract
Healthy lifestyle and diet are associated with significant reduction in risk of obesity, type 2 diabetes, and cardiovascular diseases. Oxidative stress and the imbalance between prooxidants and antioxidants are linked to cardiovascular and metabolic diseases. Changes in antioxidant capacity of the body may lead to oxidative stress and vascular dysfunction. Diet is an important source of antioxidants, while exercise offers many health benefits as well. Recent findings have evidenced that diet and physical factors are correlated to oxidative stress. Diet and physical factors have debatable roles in modulating oxidative stress and effects on the endothelium. Since endothelium and oxidative stress play critical roles in cardiovascular and metabolic diseases, dietary and physical factors could have significant implications on prevention of the diseases. This review is aimed at summarizing the current knowledge on the impact of diet manipulation and physical factors on endothelium and oxidative stress, focusing on cardiovascular and metabolic diseases. We discuss the friend-and-foe role of dietary modification (including different diet styles, calorie restriction, and nutrient supplementation) on endothelium and oxidative stress, as well as the potential benefits and concerns of physical activity and exercise on endothelium and oxidative stress. A fine balance between oxidative stress and antioxidants is important for normal functions in the cells and interfering with this balance may lead to unfavorable effects. Further studies are needed to identify the best diet composition and exercise intensity.
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Wang R, Tian H, Guo D, Tian Q, Yao T, Kong X. Impacts of exercise intervention on various diseases in rats. JOURNAL OF SPORT AND HEALTH SCIENCE 2020; 9:211-227. [PMID: 32444146 PMCID: PMC7242221 DOI: 10.1016/j.jshs.2019.09.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 06/06/2019] [Accepted: 09/06/2019] [Indexed: 05/07/2023]
Abstract
BACKGROUND Exercise is considered as an important intervention for treatment and prevention of several diseases, such as osteoarthritis, obesity, hypertension, and Alzheimer's disease. This review summarizes decadal exercise intervention studies with various rat models across 6 major systems to provide a better understanding of the mechanisms behind the effects that exercise brought. METHODS PubMed was utilized as the data source. To collect research articles, we used the following terms to create the search: (exercise [Title] OR physical activity [Title] OR training [Title]) AND (rats [Title/Abstract] OR rat [Title/Abstract] OR rattus [Title/Abstract]). To best cover targeted studies, publication dates were limited to "within 11 years." The exercise intervention methods used for different diseases were sorted according to the mode, frequency, and intensity of exercise. RESULTS The collected articles were categorized into studies related to 6 systems or disease types: motor system (17 articles), metabolic system (110 articles), cardiocerebral vascular system (171 articles), nervous system (71 articles), urinary system (2 articles), and cancer (21 articles). Our review found that, for different diseases, exercise intervention mostly had a positive effect. However, the most powerful effect was achieved by using a specific mode of exercise that addressed the characteristics of the disease. CONCLUSION As a model animal, rats not only provide a convenient resource for studying human diseases but also provide the possibility for exploring the molecular mechanisms of exercise intervention on diseases. This review also aims to provide exercise intervention frameworks and optimal exercise dose recommendations for further human exercise intervention research.
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Affiliation(s)
- Ruwen Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Haili Tian
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Dandan Guo
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Qianqian Tian
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Ting Yao
- Division of Pediatric Endocrinology, Department of Pediatrics, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
| | - Xingxing Kong
- Division of Pediatric Endocrinology, Department of Pediatrics, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
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Lee GH, Hoang TH, Jung ES, Jung SJ, Chae SW, Chae HJ. Mulberry Extract Attenuates Endothelial Dysfunction through the Regulation of Uncoupling Endothelial Nitric Oxide Synthase in High Fat Diet Rats. Nutrients 2019; 11:nu11050978. [PMID: 31035424 PMCID: PMC6566444 DOI: 10.3390/nu11050978] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 11/23/2022] Open
Abstract
Dyslipidemia is associated with endothelial dysfunction, which is linked to nitric oxide (NO) biology. The coupling of endothelial NO synthase with cofactors is a major step for NO release. This study is aimed to investigate the vascular pharmacology effects of mulberry in rat thoracic aorta and human vascular endothelial cells. In vitro, we investigated the protective effects of the mulberry extract and its main component cyanidin-3-rutinoside (C-3-R), against oxidized low-density lipoprotein (ox-LDL)-induced endothelial nitric oxide synthase (eNOS) uncoupling. Whereas ox-LDL significantly decreased NO levels in endothelial cells, mulberry extract, and C-3-R significantly recovered NO levels and phospho-eNOS Thr495 and Ser1177 expression. In vivo, mulberry was administered to 60% of high-fat diet (w/w)-fed Sprague Dawley (SD) rats for six weeks, in which endothelium-dependent relaxations were significantly improved in organ bath studies and isometric tension recordings. Consistently, aortic expressions of phospho-eNOS and nitrotyrosine were increased. Mulberry also raised serum NO levels, increased phosphorylation of eNOS, and reduced nitrotyrosine and intracellular reactive oxygen species (ROS) in aortas, showing that mulberry preserves endothelium-dependent relaxation in aortas from high-fat diet rats. We suggest that this effect is mediated through enhanced NO bioavailability, in which the regulation of ROS and its reduced eNOS uncoupling are involved.
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Affiliation(s)
- Geum-Hwa Lee
- Non-Clinical Evaluation Center, Biomedical Research Institute, Chonbuk National University Hospital, Jeonju 54907, Chonbuk, Korea.
| | - The-Hiep Hoang
- Non-Clinical Evaluation Center, Biomedical Research Institute, Chonbuk National University Hospital, Jeonju 54907, Chonbuk, Korea.
| | - Eun-Soo Jung
- Clinical Trial Center for Functional Foods (CTCF2), Chonbuk National University Hospital, Jeonju 54907, Chonbuk, Korea.
| | - Su-Jin Jung
- Clinical Trial Center for Functional Foods (CTCF2), Chonbuk National University Hospital, Jeonju 54907, Chonbuk, Korea.
| | - Soo-Wan Chae
- Clinical Trial Center for Functional Foods (CTCF2), Chonbuk National University Hospital, Jeonju 54907, Chonbuk, Korea.
- Department of Pharmacology, Chonbuk National University Medical School, Jeonju 54896, Chonbuk, Korea.
| | - Han-Jung Chae
- Non-Clinical Evaluation Center, Biomedical Research Institute, Chonbuk National University Hospital, Jeonju 54907, Chonbuk, Korea.
- Department of Pharmacology, Chonbuk National University Medical School, Jeonju 54896, Chonbuk, Korea.
- Institute of New Drug Development, School of Medicine, Chonbuk National University, Jeonju 54907, Chonbuk, Korea.
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Pagan LU, Gomes MJ, Okoshi MP. Endothelial Function and Physical Exercise. Arq Bras Cardiol 2019; 111:540-541. [PMID: 30365677 PMCID: PMC6199517 DOI: 10.5935/abc.20180211] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 09/27/2018] [Indexed: 12/31/2022] Open
Affiliation(s)
- Luana Urbano Pagan
- Faculdade de Medicina de Botucatu - Universidade Estadual Paulista (UNESP), Botucatu, SP - Brazil
| | - Mariana Janini Gomes
- Faculdade de Medicina de Botucatu - Universidade Estadual Paulista (UNESP), Botucatu, SP - Brazil
| | - Marina Politi Okoshi
- Faculdade de Medicina de Botucatu - Universidade Estadual Paulista (UNESP), Botucatu, SP - Brazil
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Melo S, da Silva Júnior N, Barauna V, Oliveira E. Cardiovascular Adaptations Induced by Resistance Training in Animal Models. Int J Med Sci 2018; 15:403-410. [PMID: 29511376 PMCID: PMC5835711 DOI: 10.7150/ijms.23150] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 12/05/2017] [Indexed: 02/06/2023] Open
Abstract
In the last 10 years the number of studies showing the benefits of resistance training (RT) to the cardiovascular system, have grown. In comparison to aerobic training, RT-induced favorable adaptations to the cardiovascular system have been ignored for many years, thus the mechanisms of the RT-induced cardiovascular adaptations are still uncovered. The lack of animal models with comparable protocols to the RT performed by humans hampers the knowledge. We have used squat-exercise model, which is widely used by many others laboratories. However, to a lesser extent, other models are also employed to investigate the cardiovascular adaptations. In the subsequent sections we will review the information regarding cardiac morphological adaptations, signaling pathway of the cardiac cell, cardiac function and the vascular adaptation induced by RT using this animal model developed by Tamaki et al. in 1992. Furthermore, we also describe cardiovascular findings observed using other animal models of RT.
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Affiliation(s)
- S.F.S. Melo
- Laboratory of Molecular Physiology, Health Sciences Center, Federal University of Espírito Santo. Address: Av. Marechal Campos, 1468 Maruípe, Espírito Santo, Vitória, Brazil. Postal code: 29043900. Telephone number: (5527)996892407
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of São Paulo. Address: Av. Prof. Mello Moraes, 65, Cidade Universitária, São Paulo, São Paulo, Brazil. Postal code: 05508-9000. Telephone number: (5511) 30913136
| | - N.D. da Silva Júnior
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of São Paulo. Address: Av. Prof. Mello Moraes, 65, Cidade Universitária, São Paulo, São Paulo, Brazil. Postal code: 05508-9000. Telephone number: (5511) 30913136
| | - V.G. Barauna
- Laboratory of Molecular Physiology, Health Sciences Center, Federal University of Espírito Santo. Address: Av. Marechal Campos, 1468 Maruípe, Espírito Santo, Vitória, Brazil. Postal code: 29043900. Telephone number: (5527)996892407
| | - E.M. Oliveira
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of São Paulo. Address: Av. Prof. Mello Moraes, 65, Cidade Universitária, São Paulo, São Paulo, Brazil. Postal code: 05508-9000. Telephone number: (5511) 30913136
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Ribeiro F, Ribeiro IP, Gonçalves AC, Alves AJ, Melo E, Fernandes R, Costa R, Sarmento-Ribeiro AB, Duarte JA, Carreira IM, Witkowski S, Oliveira J. Effects of resistance exercise on endothelial progenitor cell mobilization in women. Sci Rep 2017; 7:17880. [PMID: 29259281 PMCID: PMC5736626 DOI: 10.1038/s41598-017-18156-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/28/2017] [Indexed: 12/11/2022] Open
Abstract
This study aimed to determine the effect of a single bout of resistance exercise at different intensities on the mobilization of circulating EPCs over 24 hours in women. In addition, the angiogenic factors stromal cell-derived factor 1 (SDF-1α), vascular endothelial growth factor (VEGF), hypoxia-inducible factor 1-alpha (HIF-1α) and erythropoietin (EPO) were measured as potential mechanisms for exercise-induced EPCs mobilization. Thirty-eight women performed a resistance exercise session at an intensity of 60% (n = 13), 70% (n = 12) or 80% (n = 13) of one repetition maximum. Each session was comprised of three sets of 12 repetitions of four exercises: bench press, dumbbell curl, dumbbell squat, and standing dumbbell upright row. Blood was sampled at baseline and immediately, 6 hours, and 24 hours post-exercise. Circulating EPC and levels of VEGF, HIF-1α and EPO were significantly higher after exercise (P < 0.05). The change in EPCs from baseline was greatest in the 80% group (P < 0.05), reaching the highest at 6 hours post-exercise. The change in EPCs from baseline to 6 hours post-exercise was correlated with the change in VEGF (r = 0.492, P = 0.002) and HIF-1α (r = 0.388, P = 0.016). In general, a dose-response relationship was observed, with the highest exercise intensities promoting the highest increases in EPCs and angiogenic factors.
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Affiliation(s)
- Fernando Ribeiro
- School of Health Sciences and Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal.
| | - Ilda P Ribeiro
- Center of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, and Center for Neuroscience and Cell Biology and Institute for Biomedical Imaging and Life Sciences (CNC.IBILI), Coimbra, Portugal
| | - Ana C Gonçalves
- Center of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, and Center for Neuroscience and Cell Biology and Institute for Biomedical Imaging and Life Sciences (CNC.IBILI), Coimbra, Portugal.,Laboratory of Oncobiology and Hematology, University Clinic of Hematology and Applied Molecular Biology, Faculty of Medicine, and Clinical Hematology Department, Centro Hospitalar Universitário de Coimbra (CHUC), Coimbra, Portugal
| | - Alberto J Alves
- Research Centre in Sports Sciences, Health and Human Development, CIDESD, University Institute of Maia, ISMAI, Maia, Portugal
| | - Elsa Melo
- School of Health Sciences, University of Aveiro, Aveiro, Portugal
| | - Raquel Fernandes
- School of Health Sciences and Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | - Rui Costa
- School of Health Sciences and CINTESIS.UA, University of Aveiro, Aveiro, Portugal
| | - Ana B Sarmento-Ribeiro
- Center of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, and Center for Neuroscience and Cell Biology and Institute for Biomedical Imaging and Life Sciences (CNC.IBILI), Coimbra, Portugal.,Laboratory of Oncobiology and Hematology, University Clinic of Hematology and Applied Molecular Biology, Faculty of Medicine, and Clinical Hematology Department, Centro Hospitalar Universitário de Coimbra (CHUC), Coimbra, Portugal.,Hematology Department, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
| | - José A Duarte
- Research Center in Physical Activity, Health and Leisure, CIAFEL, Faculty of Sport, University of Porto, Porto, Portugal
| | - Isabel M Carreira
- Center of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, and Center for Neuroscience and Cell Biology and Institute for Biomedical Imaging and Life Sciences (CNC.IBILI), Coimbra, Portugal
| | - Sarah Witkowski
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts, United States of America
| | - José Oliveira
- Research Center in Physical Activity, Health and Leisure, CIAFEL, Faculty of Sport, University of Porto, Porto, Portugal
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