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Žarak M, Perović A, Njire Bratičević M, Šupraha Goreta S, Dumić J. Adaptive response triggered by the repeated SCUBA diving is reflected in cardiovascular, muscular, and immune biomarkers. Physiol Rep 2021; 9:e14691. [PMID: 33463896 PMCID: PMC7814492 DOI: 10.14814/phy2.14691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/16/2020] [Accepted: 12/03/2020] [Indexed: 02/02/2023] Open
Abstract
It has been shown that one recreational SCUBA (rSCUBA) diving session is sufficient to cause changes in plasma level of cardiovascular (CV) and muscular biomarkers. To explore whether repetitive rSCUBA diving triggers an adaptive response of the CV, muscular, and immune system, we measured the cardiac damage (NT-proBNP, hs-TnI, and CK-MB), muscle damage (myoglobin (Mb), galectin-3, CK, and LDH), vascular endothelial activation (ET-1 and VEGF), and inflammatory (leukocyte count (Lkc), CRP, and IL-6) biomarkers. A longitudinal intervention study included divers (N = 14) who conducted one dive per week over 5 weeks at the depth of 20-30 m for 30 min after a non-dive period of 5 months. The blood samples were collected before and after the first, third, and fifth dives and specific biomarkers were measured in plasma or serum by the standard laboratory methods. The concentrations of the majority of measured biomarkers increased after every single dive; the exception was ET-1 concentration that decreased. The cumulative effect of five dives has been reflected in diminishing changes in hs-TnI, Mb, galectin-3, ET-1, VEGF, and IL-6 levels, and more pronounced increases in NT-proBNP and hs-CRP levels. The median values of all measured biomarkers in all time points, except Mb, remained within the corresponding reference range. Repeatedly performed rSCUBA diving activates an adaptive response of the CV, muscular, and immune system that is reflected in changes in the specific biomarker concentration.
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Affiliation(s)
- Marko Žarak
- Clinical Department of Laboratory DiagnosticsDubrava University HospitalZagrebCroatia
| | - Antonija Perović
- Department of Laboratory DiagnosticsDubrovnik General HospitalDubrovnikCroatia
| | | | - Sandra Šupraha Goreta
- Faculty of Pharmacy and BiochemistryDepartment of Biochemistry and Molecular BiologyUniversity of ZagrebZagrebCroatia
| | - Jerka Dumić
- Faculty of Pharmacy and BiochemistryDepartment of Biochemistry and Molecular BiologyUniversity of ZagrebZagrebCroatia
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Yan Z, Zeng N, Li J, Liao T, Ni G. Cardiac Effects of Treadmill Running at Different Intensities in a Rat Model. Front Physiol 2021; 12:774681. [PMID: 34912240 PMCID: PMC8667026 DOI: 10.3389/fphys.2021.774681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 11/09/2021] [Indexed: 02/05/2023] Open
Abstract
Purpose: In this study, we investigated the effect of treadmill exercise training on cardiac hypertrophy, collagen deposition, echo parameters and serum levels of cardiac troponin I (cTnI) in rats, and how they differ with various exercise intensities, hence exploring potential signal transduction. Methods: Male Sprague-Dawley rats were randomly divided into sedentary (SED), low-intensity running (LIR), medium-intensity running (MIR), and high-intensity running (HIR) groups. Each exercise group had 3 subgroups that were sacrificed for cardiac tissue analyses at 1, 4, and 8 weeks, respectively, and all rats participated in a daily 1 h treadmill routine 5 days per week. Echocardiographic measurements were performed 24 h after the last exercise session. Additionally, myocardium samples and blood were collected for histological and biochemical examinations. Changes in the extracellular signal-regulated kinases 1/2 (ERK1/2) signal pathway were detected by Western blotting. Results: After a week of running, ventricular myocyte size and the phosphorylation of ERK1/2 increased in the HIR group, while left ventricular (LV) diastolic diameter values and LV relative wall thickness increased in the LIR and MIR groups. In addition, we observed heart enlargement, cTnI decrease, and ERK1/2 signal activation in each of the exercise groups after 4 weeks of running. However, the HIR group displayed substantial rupture and increased fibrosis in myocardial tissue. In addition, compared with the LIR and MIR groups, 8 weeks of HIR resulted in structural damage, fiber deposition, and increased cTnI. However, there was no difference in the activation of ERK1/2 signaling between the exercise and SED groups. Conclusion: The effect of running on cardiac hypertrophy was intensity dependent. In contrast to LIR and MIR, the cardiac hypertrophy induced by 8 weeks of HIR was characterized by potential cardiomyocyte injury, which increased the risk of pathological development. Furthermore, the ERK signaling pathway was mainly involved in the compensatory hypertrophy process of the myocardium in the early stage of exercise and was positively correlated with exercise load. However, long-term exercise may attenuate ERK signaling activation.
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Affiliation(s)
- Zhipeng Yan
- Department of Rehabilitation Medicine, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Ni Zeng
- Department of Rehabilitation Medicine, The Affiliated Hospital of Guizhou Medical University, Guizhou, China
| | - Jieting Li
- Department of Rehabilitation Medicine, Fuzhou Second Affiliated Hospital, Xiamen University, Fuzhou, China
| | - Tao Liao
- Department of Rehabilitation Medicine, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Guoxin Ni
- Department of Rehabilitation Medicine, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- *Correspondence: Guoxin Ni,
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Cardiac Biomarker Release After Exercise in Healthy Children and Adolescents: A Systematic Review and Meta-Analysis. Pediatr Exerc Sci 2019; 31:28-36. [PMID: 30269651 DOI: 10.1123/pes.2018-0058] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
PURPOSE The authors evaluated the impact of acute exercise and 24-hour recovery on serum concentration of cardiac troponins T and I (cTnT and cTnI) and N-terminal fragment of the prohormone brain natriuretic peptide (NT-proBNP) in healthy children and adolescents. The authors also determined the proportion of participants exceeding the upper reference limits and acute myocardial infarction cutoff for each assay. METHOD Web of Science, SPORTDiscus, MEDLINE, ScienceDirect, and Scopus databases were systematically searched up to November 2017. Studies were screened and quality-assessed; the data was systematically extracted and analyzed. RESULTS From 751 studies initially identified, 14 met the inclusion criteria for data extraction. All 3 biomarkers were increased significantly after exercise. A decrease from postexercise to 24 hours was noted in cTnT and cTnI, although this decrease was only statistically significant for cTnT. The upper reference limit was exceeded by 76% of participants for cTnT, a 51% for cTnI, and a 13% for NT-proBNP. Furthermore, the cutoff value for acute myocardial infarction was exceeded by 39% for cTnT and a 11% for cTnI. Postexercise peak values of cTnT were associated with duration and intensity (Q(3) = 28.3, P < .001) while NT-proBNP peak values were associated with duration (Q(2) = 11.9, P = .003). CONCLUSION Exercise results in the appearance of elevated levels of cTnT, cTnI, and NT-proBNP in children and adolescents. Postexercise elevations of cTnT and NT-proBNP are associated with exercise duration and intensity.
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Broz P, Rajdl D, Novak J, Hromadka M, Racek J, Trefil L, Zeman V. High-sensitivity Troponins after a Standardized 2-hour Treadmill Run. J Med Biochem 2018; 37:364-372. [PMID: 30598634 PMCID: PMC6298465 DOI: 10.1515/jomb-2017-0055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 12/05/2017] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The aim of this study was to examine high-sensitivity troponin T and I (hsTnT and hsTnI) after a treadmill run under laboratory conditions and to find a possible connection with echocardiographic, laboratory and other assessed parameters. METHODS Nineteen trained men underwent a standardized 2-hour-long treadmill run. Concentrations of hsTnT and hsTnI were assessed before the run, 60, 120 and 180 minutes after the start and 24 hours after the run. Changes in troponins were tested using non-parametric analysis of variance (ANOVA). The multiple linear regression model was used to find the explanatory variables for hsTnT and hsTnI changes. Values of troponins were evaluated using the 0h/1h algorithm. RESULTS Changes in hsTnT and hsTnI levels were statistically significant (p<0.0001 and p<0.0001, respectively). In a multiple regression model (adjusted R2: 0.60, p=0.005 for hsTnT and adjusted R2: 0.60, p=0.005 for hsTnI), changes in both troponins can be explained by relative left wall thickness (LV), training volume, body temperature after the run and creatinine changes. According to the 0h/1h algorithm, none of the runners was evaluated as negative. CONCLUSIONS Relative LV wall thickness, creatinine changes, training volume and body temperature after the run can predict changes in hsTnT and hsTnI levels. When medical attention is needed after physical exercise, hsTn levels should be tested only when clinical suspicion and the patient's history indicate a high probability of myocardial damage.
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Affiliation(s)
- Pavel Broz
- Institute of Clinical Biochemistry and Haematology, University Hospital in Pilsen, Pilsen, Czech Republic
- Faculty of Medicine in Pilsen, Charles University in Prague, Prague, Czech Republic
| | - Daniel Rajdl
- Institute of Clinical Biochemistry and Haematology, University Hospital in Pilsen, Pilsen, Czech Republic
- Faculty of Medicine in Pilsen, Charles University in Prague, Prague, Czech Republic
| | - Jaroslav Novak
- Department of Sports Medicine, Charles University in Prague, Prague, Czech Republic
| | - Milan Hromadka
- Department of Cardiology, University Hospital in Pilsen, Pilsen, Czech Republic
| | - Jaroslav Racek
- Institute of Clinical Biochemistry and Haematology, University Hospital in Pilsen, Pilsen, Czech Republic
- Faculty of Medicine in Pilsen, Charles University in Prague, Prague, Czech Republic
| | - Ladislav Trefil
- Institute of Clinical Biochemistry and Haematology, University Hospital in Pilsen, Pilsen, Czech Republic
| | - Vaclav Zeman
- Department of Sports Medicine, Charles University in Prague, Prague, Czech Republic
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Lippi G, Cervellin G, Schena F. How much myocardium mass may be injured during endurance physical exercise? Clin Chim Acta 2017; 470:29-30. [PMID: 28472726 DOI: 10.1016/j.cca.2017.04.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 04/18/2017] [Accepted: 04/26/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Giuseppe Lippi
- Section of Clinical Biochemistry, University of Verona, Verona, Italy.
| | | | - Federico Schena
- School of Sport and Exercise Sciences, University of Verona, Verona, Italy
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Kong Z, Nie J, Lin H, George K, Zhao G, Zhang H, Tong TK, Shi Q. Sex differences in release of cardiac troponin T after endurance exercise. Biomarkers 2016; 22:345-350. [DOI: 10.1080/1354750x.2016.1265007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Zhaowei Kong
- Faculty of Education, University of Macau, Macao, China
| | - Jinlei Nie
- School of Physical Education and Sports, Macao Polytechnic Institute, Macao, China
| | - Hua Lin
- College of Physical Education, Liaoning Normal University, Dalian, China
| | - Keith George
- Research Institute for Sport and Exercise Sciences Liverpool John Moores University, Liverpool, UK
| | - Gang Zhao
- Department of Ultrasonography, The Third Hospital of Shijiazhuang, Shijiazhuang, China
| | - Haifeng Zhang
- College of Physical Education, Hebei Normal University, Shijiazhuang, China
| | - Tomas K. Tong
- Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, Department of Physical Education, Hong Kong Baptist University, Hong Kong, China
| | - Qingde Shi
- School of Physical Education and Sports, Macao Polytechnic Institute, Macao, China
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Abstract
Cardiac troponins are the preferred biomarkers in diagnostic of myocardial infarction, but these markers also can rise in response to exercise. Multiple studies have assessed troponins post-exercise, but the results have varied and there have been disagreements about the mechanism of troponin release. The aim of this paper was to review the literature, and to consider factors and mechanisms regarding exercise-induced increase of troponin. 145 studies were found after a search in pubmed and inclusion of additional articles found in the reference list of the first articles. Results showed that troponin rises in 0-100% of subjects after prolonged heavy exercise like marathon, but also after short-term and intermittent exercise like 30min of running and basketball. The variation can be due to factors like intensity, age, training experience, variation in sample size, blood sample timing and troponin assay. The pattern of troponin level post-exercise corresponds to release from the cytosolic compartment of cardiomyocytes. Increased membrane permeability might be caused by production of reactive oxygen species or alterations in calcium, pH, glucose/fat metabolism or in communication between integrins. Other suggested mechanisms are increased cardiovascular stress, inflammation, vasculitis, release of troponin degradation products in "blebs", dehydration, impaired renal clearance and expression of cardiac troponin in skeletal muscle. It can be concluded that both heavy and light exercise may cause elevated troponin, which have to be considered when patient are suspected to have a myocardial infarction. Several factors probably influence post-exercise levels of troponin, but the mechanism of release is most likely physiologic.
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Affiliation(s)
- T Gresslien
- Department of Cardiology, Oslo University Hospital Ullevål and Institute of Clinical Sciences, University of Oslo, Oslo, Norway
| | - S Agewall
- Department of Cardiology, Oslo University Hospital Ullevål and Institute of Clinical Sciences, University of Oslo, Oslo, Norway.
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Ayoglu B, Chaouch A, Lochmüller H, Politano L, Bertini E, Spitali P, Hiller M, Niks EH, Gualandi F, Pontén F, Bushby K, Aartsma-Rus A, Schwartz E, Le Priol Y, Straub V, Uhlén M, Cirak S, 't Hoen PAC, Muntoni F, Ferlini A, Schwenk JM, Nilsson P, Al-Khalili Szigyarto C. Affinity proteomics within rare diseases: a BIO-NMD study for blood biomarkers of muscular dystrophies. EMBO Mol Med 2015; 6:918-36. [PMID: 24920607 PMCID: PMC4119355 DOI: 10.15252/emmm.201303724] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Despite the recent progress in the broad-scaled analysis of proteins in body fluids, there is still a lack in protein profiling approaches for biomarkers of rare diseases. Scarcity of samples is the main obstacle hindering attempts to apply discovery driven protein profiling in rare diseases. We addressed this challenge by combining samples collected within the BIO-NMD consortium from four geographically dispersed clinical sites to identify protein markers associated with muscular dystrophy using an antibody bead array platform with 384 antibodies. Based on concordance in statistical significance and confirmatory results obtained from analysis of both serum and plasma, we identified eleven proteins associated with muscular dystrophy, among which four proteins were elevated in blood from muscular dystrophy patients: carbonic anhydrase III (CA3) and myosin light chain 3 (MYL3), both specifically expressed in slow-twitch muscle fibers and mitochondrial malate dehydrogenase 2 (MDH2) and electron transfer flavoprotein A (ETFA). Using age-matched sub-cohorts, 9 protein profiles correlating with disease progression and severity were identified, which hold promise for the development of new clinical tools for management of dystrophinopathies.
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Affiliation(s)
- Burcu Ayoglu
- Affinity Proteomics, SciLifeLab, School of Biotechnology KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Amina Chaouch
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Hanns Lochmüller
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Luisa Politano
- Cardiomiology and Medical Genetics, Department of Experimental Medicine, Second University of Naples, Naples, Italy
| | - Enrico Bertini
- Unit of Neuromuscular and Neurodegenerative Disorders, Department of Neurosciences, Bambino Gesú Children's Hospital, Rome, Italy
| | - Pietro Spitali
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Monika Hiller
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Eric H Niks
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Francesca Gualandi
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Fredrik Pontén
- SciLifeLab, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Kate Bushby
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Annemieke Aartsma-Rus
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | | | | | - Volker Straub
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Mathias Uhlén
- Affinity Proteomics, SciLifeLab, School of Biotechnology KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Sebahattin Cirak
- Research Center for Genetic Medicine, Childrens National Medical Center, Washington, DC, USA
| | - Peter A C 't Hoen
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Francesco Muntoni
- The Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, UK
| | - Alessandra Ferlini
- Unit of Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Jochen M Schwenk
- Affinity Proteomics, SciLifeLab, School of Biotechnology KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Peter Nilsson
- Affinity Proteomics, SciLifeLab, School of Biotechnology KTH-Royal Institute of Technology, Stockholm, Sweden
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High molecular mass proteomics analyses of left ventricle from rats subjected to differential swimming training. BMC PHYSIOLOGY 2012; 12:11. [PMID: 22950628 PMCID: PMC3508799 DOI: 10.1186/1472-6793-12-11] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 08/28/2012] [Indexed: 11/10/2022]
Abstract
BACKGROUND Regular exercises are commonly described as an important factor in health improvement, being directly related to contractile force development in cardiac cells.In order to evaluate the links between swimming exercise intensity and cardiac adaptation by using high molecular mass proteomics, isogenic Wistar rats were divided into four groups: one control (CG) and three training groups (TG's), with low, moderate and high intensity of exercises.In order to evaluate the links between swimming exercise intensity and cardiac adaptation by using high molecular mass proteomics, isogenic Wistar rats were divided into four groups: one control (CG) and three training groups (TG's), with low, moderate and high intensity of exercises. RESULTS Findings here reported demonstrated clear morphologic alterations, significant cellular injury and increased energy supplies at high exercise intensities. α-MyHC, as well proteins associated with mitochondrial oxidative metabolism were shown to be improved. α-MyHC expression increase 1.2 fold in high intensity training group when compared with control group. α-MyHC was also evaluated by real-time PCR showing a clear expression correlation with protein synthesis data increase in 8.48 fold in high intensity training group. Other myofibrillar protein, troponin , appear only in high intensity group, corroborating the cellular injury data. High molecular masses proteins such as MRS2 and NADH dehydrogenase, involved in metabolic pathways also demonstrate increase expression, respectily 1.5 and 1.3 fold, in response to high intensity exercise. CONCLUSIONS High intensity exercise demonstrated an increase expression in some high molecular masses myofibrilar proteins, α-MyHC and troponin. Furthermore this intensity also lead a significant increase of other high molecular masses proteins such as MRS2 and NADH dehydrogenase in comparison to low and moderate intensities. However, high intensity exercise also represented a significant degree of cellular injury, when compared with the individuals submitted to low and moderate intensities.
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Corsetti R, Lombardi G, Barassi A, Lanteri P, Colombini A, D'Eril GM, Banfi G. Cardiac indexes, cardiac damage biomarkers and energy expenditure in professional cyclists during the Giro d'Italia 3-weeks stage race. Biochem Med (Zagreb) 2012; 22:237-46. [PMID: 22838189 PMCID: PMC4062341 DOI: 10.11613/bm.2012.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Introduction The study of cardiac response to strenuous and continuous exercise is crucial to understanding the physiology of endurance. N-terminal proB-type natriuretic peptide (NT-proBNP) is a potential marker for monitoring myocardial wall stress, and troponins (TnT and TnI) are widely used in the diagnosis of cardiac ischemia and infarction. Strenuous exercise may generate transitory ischemia, myocardial stress, and diastolic left ventricular dysfunction, inducing the increased production of both these biomarkers. We measured changes in NT-proBNP and TnT in elite cyclists during a 3-week stage race, a model of strenuous exercise. Materials and methods: The study population was 9 professional cyclists participating in the 2011 Giro d’Italia. Pre-analytical and analytical phases scrupulously followed official recommendations. Anthropometric data, net energy expenditure and cardiac indexes (rate, diastolic and systolic blood pressure) were recorded. Blood samples were drawn pre-race (day −1) and at days 12 and 22; NT-proBNP and highly sensitive-troponin (Hs-TnT) concentrations were assayed and corrected for plasma volume changes. Results: Body-mass index decreased and energy expenditure increased by 52% during the race. NT-proBNP concentrations increased [day −1: 23.52 ng/L (9.67–34.33); day 12: 63.46 ng/L (22.15–93.31); P = 0.039; day 22: 89.26 ng/L (34.66–129.78) vs. day −1; P < 0.001] and correlated with heart rate (r = −0.51; P = 0.006), systolic pressure (r = 0.39; P = 0.046) and energy expenditure (r = 0.70; P < 0.001). TnT concentrations did not vary, but a widened TnT amplitude distribution was observed. Conclusions: Increases in NT-proBNP correlated with higher energy expenditure over a 3-week cycling stage race, possibly indicating myocardial stress.
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Affiliation(s)
- Roberto Corsetti
- Liquigas-Cannondale Pro-cycling Team, Medical Board, Faenza, Italia
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Tian Y, Nie J, Huang C, George KP. The kinetics of highly sensitive cardiac troponin T release after prolonged treadmill exercise in adolescent and adult athletes. J Appl Physiol (1985) 2012; 113:418-25. [DOI: 10.1152/japplphysiol.00247.2012] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The nature and kinetics of postexercise cardiac troponin (cTn) appearance is poorly described and understood in most athlete populations. We compared the kinetics of high-sensitivity cTn T (hs-cTnT) after endurance running in training-matched adolescents and adults. Thirteen male adolescent (mean age: 14.1 ± 1.1 yr) and 13 male adult (24.0 ± 3.6 yr) runners performed a 90-min constant-load treadmill run at 95% of ventilatory threshold. Serum hs-cTnT levels were assessed preexercise, immediately postexercise, and at 1, 2, 3, 4, 5, 6, and 24 h postexercise. Serum NH2-terminal pro-brain natriuretic peptide (NT-pro-BNP) levels were recorded preexercise and 3, 6, and 24 h postexercise. Left ventricular function was assessed preexercise, immediately postexercise, and 6 h postexercise. Peak hs-cTnT occurred at 3–4 h postexercise in all subjects, but was substantially higher ( P < 0.05) in adolescents [median (range): 211.0 (11.2–794.5) ng/l] compared with adults [median (range): 19.1 (9.7–305.6) ng/l]. Peak hs-cTnT was followed by a rapid decrease in both groups, although adolescent data had not returned to baseline at 24 h. Substantial interindividual variability was noted in peak hs-cTnT, especially in the adolescents. NT-pro-BNP was significantly elevated postexercise in both adults and adolescents and remained above baseline at 24 h in both groups. In both groups, left ventricular ejection fraction and the ratio of early-to-atrial peak Doppler flow velocities were significantly decreased immediately postexercise. Peak hs-cTnT was not related to changes in ejection fraction, ratio of early-to-atrial peak Doppler flow velocities, or NT-pro-BNP. The present data suggest that postexercise hs-cTnT elevation 1) occurred in all runners, 2) peaked 3–4 h postexercise, and 3) the peak hs-cTnT concentration after prolonged exercise was higher in adolescents than adults.
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Affiliation(s)
- Ye Tian
- China Institute of Sport Science, Beijing, China
| | - Jinlei Nie
- School of Physical Education and Sports, Macao Polytechnic Institute, Macao, China
| | - Chuanye Huang
- College of Sports Science, Shanghai University of Sport, Shanghai, China; and
| | - Keith P. George
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
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Lippi G, Schena F, Dipalo M, Montagnana M, Salvagno GL, Aloe R, Guidi GC. Troponin I measured with a high sensitivity immunoassay is significantly increased after a half marathon run. Scandinavian Journal of Clinical and Laboratory Investigation 2012; 72:467-70. [DOI: 10.3109/00365513.2012.697575] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Physical exercise induces adaptations in metabolism considered beneficial for health. Athletic performance is linked to adaptations, training, and correct nutrition in individuals with genetic traits that can facilitate such adaptations. Intense and continuous exercise, training, and competitions, however, can induce changes in the serum concentrations of numerous laboratory parameters. When these modifications, especially elevated laboratory levels, result outside the reference range, further examinations are ordered or participation in training and competition is discontinued or sports practice loses its appeal. In order to correctly interpret commonly used laboratory data, laboratory professionals and sport physicians need to know the behavior of laboratory parameters during and after practice and competition. We reviewed the literature on liver, kidney, muscle, heart, energy, and bone parameters in athletes with a view to increase the knowledge about clinical chemistry applied to sport and to stimulate studies in this field. In liver metabolism, the interpretation of serum aminotransferases concentration in athletes should consider the release of aspartate aminotransferase (AST) from muscle and of alanine aminotransferase (ALT) mainly from the liver, when bilirubin can be elevated because of continuous hemolysis, which is typical of exercise. Muscle metabolism parameters such as creatine kinase (CK) are typically increased after exercise. This parameter can be used to interpret the physiological release of CK from muscle, its altered release due to rhabdomyolysis, or incomplete recovery due to overreaching or trauma. Cardiac markers are released during exercise, and especially endurance training. Increases in these markers should not simply be interpreted as a signal of cardiac damage or wall stress but rather as a sign of regulation of myocardial adaptation. Renal function can be followed in athletes by measuring serum creatinine concentration, but it should be interpreted considering the athlete's body-mass index (BMI) and phase of the competitive season; use of cystatin C could be a reliable alternative to creatinine. Exercise and training induce adaptations in glucose metabolism which improve glucose utilization in athletes and are beneficial for reducing insulin insensitivity in nonathletes. Glucose metabolism differs slightly for different sports disciplines, as revealed in laboratory levels. Sport activities induce a blood lipid profile superior to that of sedentary subjects. There are few reports for a definitive conclusion, however. The differences between athletes and sedentary subjects are mainly due to high-density lipoprotein cholesterol (HDLC) concentrations in physically active individuals, although some differences among sport disciplines exist. The effect of sports on serum and urinary markers for bone metabolism is not univocal; further studies are needed to establish the real and effective influence of sport on bone turnover and especially to establish its beneficial effect.
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15
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Lippi G, Schena F, Salvagno GL, Tarperi C, Aloe R, Guidi GC. Comparison of conventional and highly-sensitive troponin I measurement in ultra-marathon runners. J Thromb Thrombolysis 2011; 33:338-42. [DOI: 10.1007/s11239-011-0651-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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NIE JINLEI, GEORGE KEITHP, TONG TOMK, TIAN YE, SHI QINGDE. Effect of Repeated Endurance Runs on Cardiac Biomarkers and Function in Adolescents. Med Sci Sports Exerc 2011; 43:2081-8. [DOI: 10.1249/mss.0b013e31821d4a82] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lippi G, Cervellin G. Letter by Lippi and Cervellin regarding article, "High-sensitivity troponin T concentrations in acute chest pain patients evaluated with cardiac computed tomography". Circulation 2011; 123:e3; author reply e4. [PMID: 21200012 DOI: 10.1161/circulationaha.110.954081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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The measurement of cardiac troponins in patients undergoing major orthopaedic surgery. INTERNATIONAL ORTHOPAEDICS 2010; 35:463-4. [PMID: 21136051 DOI: 10.1007/s00264-010-1181-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 11/22/2010] [Accepted: 11/22/2010] [Indexed: 10/18/2022]
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Temporal association of elevations in serum cardiac troponin T and myocardial oxidative stress after prolonged exercise in rats. Eur J Appl Physiol 2010; 110:1299-303. [PMID: 20711602 DOI: 10.1007/s00421-010-1604-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2010] [Indexed: 01/11/2023]
Abstract
The objective of this study was to determine if prolonged exercise resulted in the appearance of cardiac troponin T (cTnT) in serum and whether this was associated with elevated levels of myocardial oxidative stress. Forty-five male Sprague-Dawley rats were randomized into four groups and killed before (PRE-EX), immediately (0HR), 2 (2HR) and 24 h (24HR) after a 3-h bout of swimming with 5% body weight attached to their tail. In all animals serum cTnT was assayed using 3rd generation electrochemiluminescence. In homogenized heart tissue myocardial malondialdehyde (MDA), a marker of lipid peroxidation, glutathione (GSH), and a non-enzymatic estimate of total antioxidant capacity (T-AOC) were assessed spectrophotometrically. At PRE-EX cTnT was undetectable in all animals. At 0HR (median, range: 0.055, 0.020-0.100) and 2HR post-exercise (0.036, 0.016-2.110) cTnT was detectable in all animals (P < 0.05). At 24HR post-exercise cTnT was undetectable in all animals. An elevation in MDA was observed 0HR (mean ± SD: 1.7 ± 0.2 nmol mgpro(-1)) and 2HR (1.6 ± 0.3 nmol mgpro(-1)) post-exercise compared with PRE-EX (1.3 ± 0.2 nmol mgpro(-1); P < 0.05). The antioxidant response to this challenge was a significant (P < 0.05) decrease in GSH 2HR and 24HR post-exercise. Despite this T-AOC did not alter across the trial (P > 0.05). The results indicated that prolonged and strenuous exercise in rats resulted in an elevation in cTnT, a biomarker of cardiomyocyte damage, in all animals 0HR and 2HR after exercise completion. The time course of cTnT elevation was temporally associated with evidence of increased lipid peroxidation in the rat heart.
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