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Hu J, Zhou S, Ryu S, Adams K, Gao Z. Effects of Long-Term Endurance Exercise on Cardiac Morphology, Function, and Injury Indicators among Amateur Marathon Runners. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2600. [PMID: 36767963 PMCID: PMC9916084 DOI: 10.3390/ijerph20032600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/22/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
The purpose of this study was to investigate the effects of long-term endurance exercise on cardiac morphology and function, as well as injury indicators, among amateur marathon runners. We recruited 33 amateur runners who participated in a marathon. Participants were divided into experimental and control groups according to their National Athletic Grade. The experimental group included participants with a National Athletic Grade of 2 or better, and the control group included participants who did not have a National Athletic Grade. Cardiac morphology, function, and injury indicators were assessed before and after the participants' involvement in the Changsha International Marathon. All cardiac morphology and function indicators returned to pre-race levels at 24 h post-race, and left ventricular end-diastolic volume and left ventricular end-systolic volume indicators showed similar trends. Both stroke volume (SV) and percent fractional shortening (%FS) indicators showed similar trends in changes in the measurements before and after the race. SV showed no change between the pre-race and post-race periods. On the other hand, %FS showed a significant increase in the immediate post-race period, followed by restoration of its level at 24 h post-race. Among myocardial injury indicators, serum levels of cardiac troponin I, creatine kinase (CK), creatine kinase-MB (CK-MB), lactate dehydrogenase (LDH), aspartate aminotransferase (AST), and N-terminal pro-b-type natriuretic peptide (NT-proBNP) measured before the race, immediately after the race, and 24 h after the race displayed similar trends in changes among CK, CK-MB, LDH, and AST, while NT-proBNP levels did not change. We concluded that high-level amateur marathon runners had greater heart volumes, as well as wall and septal thicknesses, than low-level marathon runners, with differences in heart volume being the most pronounced. Long-term high-intensity endurance exercise caused some damage to the hearts of amateur runners. High-level runners showed better myocardial repair ability, and their levels of myocardial injury markers showed greater decreases at 24 h post-race, while low-level runners had poorer myocardial repair ability.
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Affiliation(s)
- Jianzhong Hu
- School of Physical Education, Hengyang Normal University, Hengyang 421002, China
| | - Songqing Zhou
- School of Physical Education, Hengyang Normal University, Hengyang 421002, China
| | - Suryeon Ryu
- School of Kinesiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Kaitlyn Adams
- School of Kinesiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Zan Gao
- School of Kinesiology, University of Minnesota, Minneapolis, MN 55455, USA
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Biological computation: hearts and flytraps. J Biol Phys 2022; 48:55-78. [PMID: 35089468 PMCID: PMC8866585 DOI: 10.1007/s10867-021-09590-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/03/2021] [Indexed: 11/10/2022] Open
Abstract
The original computers were people using algorithms to get mathematical results such as rocket trajectories. After the invention of the digital computer, brains have been widely understood through analogies with computers and now artificial neural networks, which have strengths and drawbacks. We define and examine a new kind of computation better adapted to biological systems, called biological computation, a natural adaptation of mechanistic physical computation. Nervous systems are of course biological computers, and we focus on some edge cases of biological computing, hearts and flytraps. The heart has about the computing power of a slug, and much of its computing happens outside of its forty thousand neurons. The flytrap has about the computing power of a lobster ganglion. This account advances fundamental debates in neuroscience by illustrating ways that classical computability theory can miss complexities of biology. By this reframing of computation, we make way for resolving the disconnect between human and machine learning.
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Dantas PS, Guzzoni V, Perez JD, Arita DY, Novaes PD, Marcondes FK, Casarini DE, Cunha TS. Nandrolone combined with strenuous resistance training impairs myocardial proteome profile of rats. Steroids 2021; 175:108916. [PMID: 34492258 DOI: 10.1016/j.steroids.2021.108916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 08/02/2021] [Accepted: 08/30/2021] [Indexed: 12/25/2022]
Abstract
We aimed to investigate the effects of high doses of nandrolone decanoate and resistance training (RT) on the proteomic profile of the left ventricle (LV) of rats, using a label-free quantitative approach. Male rats were randomized into four groups: untrained vehicle (UTV), trained vehicle (TV), untrained nandrolone (UTN), and trained nandrolone (TN). Rats were familiarized with the exercise training protocol (jump exercise) for one week. Jump-exercise was performed five days a week for 6 weeks, with 30 s of inter-set rest intervals. Nandrolone was administrated for 6 weeks (5 mg/kg, twice a week, via intramuscular). Systolic and diastolic arterial pressure and heart rate were measured 48 h post-training. LV was isolated and collagen content was measured. The expression of cardiac proteins was analyzed by ultra-efficiency liquid chromatography with mass spectrometry high / low collision energy (UPLC/MSE). Nandrolone and RT led to cardiac hypertrophy, even though high doses of nandrolone counteracted the RT-induced arterial pressures lowering. Nandrolone also affected the proteome profile negatively in LV of rats, including critical proteins related to biological processes (metabolism, oxidative stress, inflammation), structural function and membrane transporters. Our findings show physiological relevance since high doses of nandrolone induced detrimental effects on the proteome profile of heart tissue and hemodynamic parameters of rats. Furthermore, as nandrolone abuse has become increasingly common among recreational athletes and casual fitness enthusiasts, we consider that our findings have clinical relevance as well.
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Affiliation(s)
- Patrícia Sousa Dantas
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Vinicius Guzzoni
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, Department of Science and Technology, São José dos Campos, São Paulo, Brazil
| | - Juliana Dinéia Perez
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Danielle Yuri Arita
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Pedro Duarte Novaes
- Piracicaba Dental School, Department of Morphology, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Fernanda Klein Marcondes
- Piracicaba Dental School, Department of Physiological Sciences, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Dulce Elena Casarini
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Tatiana Sousa Cunha
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, Department of Science and Technology, São José dos Campos, São Paulo, Brazil.
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Pieles GE, Stuart AG. The adolescent athlete's heart; A miniature adult or grown-up child? Clin Cardiol 2020; 43:852-862. [PMID: 32643161 PMCID: PMC7403711 DOI: 10.1002/clc.23417] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 06/16/2020] [Accepted: 06/26/2020] [Indexed: 12/18/2022] Open
Abstract
The systematic development of early age talent in sports academies has led to the professionalization of pediatric sport and the sports physician need to be aware of pediatric cardiological problems. Research into the medical cardiac care and assessment of the pediatric athlete are accumulating, but specific pediatric international guidelines are not available yet and reference data for ECG and echocardiography are incomplete, in particular for the age group <12 years of age. This article is an introduction to the physiological and diagnostics specifics of the pediatric athlete. The focus lies in the differences in presentation and diagnosis between pediatric and adult athletes for the most common pathologies. Reference data for electrical and structural adaptations to intensive exercise are sparse particularly in athletes aged below 12 years old. Training related changes include decrease of resting heart rate, increase of cardiac output, ventricular cavity size, and wall thickness. Cardiac hypertrophy is less pronounced in pediatric athletes, as HR mediated cardiac output increase to endurance exercise is the dominant mechanism in peripubertal children. As in adults, the most pronounced cardiovascular adaptations appear in classical endurance sports like rowing, triathlon, and swimming, but the specifics of pediatric ECG and echocardiographic changes need to be considered.
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Affiliation(s)
- Guido E Pieles
- National Institute for Health Research (NIHR) Cardiovascular Biomedical Research Centre, Congenital Heart Unit, Bristol Heart Institute, Bristol, UK.,Institute of Sport, Exercise and Health, University College London, London, UK
| | - A Graham Stuart
- National Institute for Health Research (NIHR) Cardiovascular Biomedical Research Centre, Congenital Heart Unit, Bristol Heart Institute, Bristol, UK
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Churchill TW, Baggish AL. Cardiovascular Care of Masters Athletes. J Cardiovasc Transl Res 2020; 13:313-321. [PMID: 32189198 DOI: 10.1007/s12265-020-09987-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 03/11/2020] [Indexed: 01/31/2023]
Abstract
Masters athletes (MA), men and woman older than 35 years who participate in competitive athletics, is a rapidly growing population that is increasingly encountered in clinical cardiovascular practice. Although the high levels of exercise typically performed by MA confer numerous health advantages, no amount of exercise confers complete immunity from cardiovascular disease. The review was written to cover the clinical management of MA with cardiovascular disease. Focus is dedicated to four of the most common clinical scenarios including atrial fibrillation, myocardial fibrosis, coronary artery disease, and dilation of the ascending aorta.
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Affiliation(s)
- Timothy W Churchill
- Cardiovascular Performance Program, Massachusetts General Hospital, Harvard Medical School, Yawkey Suite 5B, 55 Fruit Street, Boston, MA, 02114, USA
| | - Aaron L Baggish
- Cardiovascular Performance Program, Massachusetts General Hospital, Harvard Medical School, Yawkey Suite 5B, 55 Fruit Street, Boston, MA, 02114, USA.
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Ding S, Gan T, Song M, Dai Q, Huang H, Xu Y, Zhong C. C/EBPB-CITED4 in Exercised Heart. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1000:247-259. [PMID: 29098625 DOI: 10.1007/978-981-10-4304-8_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
C/EBPB is a crucial transcription factor, participating in a variety of biological processes including cell proliferation, differentiation and development. In the cardiovascular system, C/EBPB-CITED4 signaling is known as a signaling pathway mediating exercise-induced cardiac growth. After its exact role in exercised heart firstly reported in 2010, more and more evidence confirmed that. MicroRNA (e.g. miR-222) and many molecules (e.g. Alpha-lipoic acid) can regulate this pathway and then involve in the cardiac protection effect induced by endurance exercise training. In addition, in cardiac growth during pregnancy, C/EBPB is also a required regulator. This chapter will give an introduction of the C/EBPB-CITED4 signaling and the regulatory network based on this signaling pathway in exercised heart.
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Affiliation(s)
- Shengguang Ding
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Tianyi Gan
- State Key Laboratory of Cardiovascular Disease, Heart Failure Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Meiyi Song
- Division of Gastroenterology and Hepatology, Digestive Disease Institute, Shanghai Tongji Hospital, Tongji University School of Medicine, 389 Xin Cun Road, Shanghai, 200065, China
| | - Qiying Dai
- Metrowest Medical Center, Framingham, 01702, MA, USA.,Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Haitao Huang
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Yiming Xu
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Chongjun Zhong
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nantong University, Nantong, 226001, China.
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Abstract
Exercise-induced cardiac remodeling is typically an adaptive response associated with cardiac myocyte hypertrophy and renewal, increased cardiac myocyte contractility, sarcomeric remodeling, cell survival, metabolic and mitochondrial adaptations, electrical remodeling, and angiogenesis. Initiating stimuli/triggers of cardiac remodeling include increased hemodynamic load, increased sympathetic activity, and the release of hormones and growth factors. Prolonged and strenuous exercise may lead to maladaptive exercise-induced cardiac remodeling including cardiac dysfunction and arrhythmia. In addition, this article describes novel therapeutic approaches for the treatment of heart failure that target mechanisms responsible for adaptive exercise-induced cardiac remodeling, which are being developed and tested in preclinical models.
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Affiliation(s)
- Bianca C Bernardo
- Baker IDI Heart and Diabetes Institute, Cardiac Hypertrophy Laboratory, PO Box 6492, Melbourne, VIC 3004, Australia
| | - Julie R McMullen
- Baker IDI Heart and Diabetes Institute, Cardiac Hypertrophy Laboratory, PO Box 6492, Melbourne, VIC 3004, Australia; Department of Medicine, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC 3004, Australia; Department of Physiology, Monash University, Wellington Road, Clayton, VIC 3800, Australia.
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Kim JH, Baggish AL. Differentiating Exercise-Induced Cardiac Adaptations From Cardiac Pathology: The “Grey Zone” of Clinical Uncertainty. Can J Cardiol 2016; 32:429-37. [DOI: 10.1016/j.cjca.2015.11.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/20/2015] [Accepted: 11/08/2015] [Indexed: 01/09/2023] Open
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Unraveling the role of high-intensity resistance training on left ventricle proteome: Is there a shift towards maladaptation? Life Sci 2016; 152:156-64. [PMID: 27021786 DOI: 10.1016/j.lfs.2016.03.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 03/13/2016] [Accepted: 03/21/2016] [Indexed: 01/08/2023]
Abstract
UNLABELLED High-intensity resistance training (RT) induces adaptations that improve physiological function. However, high intensity, volume and/or frequency may lead to injury and other health issues such as adverse cardiac effects. The aim of this study was to evaluate the effect of RT on left ventricle proteome, and to identify the pathways involved on the harmful adaptations induced by this protocol. Male Wistar rats were randomized into 2 groups: Trained (T) and Sedentary (S). Animals from T group were trained for 6weeks, and then all the animals were sacrificed and left ventricle was isolated for analysis. We identified 955 proteins, and 93 proteins were considered; 36 were expressed exclusively in T group, and 4 in S group. Based on quantitative analysis, 42 proteins were found overexpressed and 11 underexpressed in T group compared with S group. Using the Gene Ontology to relate the biological processes in which these proteins are involved, we conclude that RT protocol promotes changes similar to those found in the initial phase of heart failure, but we also observed a concomitant increased expression of protective proteins, suggesting the activation of pathways to avoid major damages on left ventricle and delay the onset of pathological hypertrophy. STATEMENT OF SIGNIFICANCE OF THE STUDY Our study shows that high-intensity RT protocol changes left ventricle proteome, modifying metabolic profile of heart tissue and inducing the expression of proteins that acts against cardiac injury. We hypothesize that these adaptations occur to prevent the onset of cardiac dysfunction. Despite highly significant, it remains to be determined whether these adaptations are sufficient to further keep left ventricle function and exert cardioprotection, and whether this panel will be shifted towards maladaptation, and heart failure.
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Jansen MJ, Burke FW. Athletes and Arrhythmias. CARDIOVASCULAR INNOVATIONS AND APPLICATIONS 2016. [DOI: 10.15212/cvia.2015.0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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