1
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Vroemen WHM, Denessen EJS, van Doorn WPTM, Pelzer KEJM, Hackeng TM, Litjens EJR, Henskens YMC, van der Sande FM, Wodzig WKWH, Kooman JP, Bekers O, de Boer D, Mingels AMA. Differences in Cardiac Troponin T Composition in Myocardial Infarction and End-Stage Renal Disease Patients: A Blood Tube Effect? J Appl Lab Med 2024; 9:989-1000. [PMID: 38816928 DOI: 10.1093/jalm/jfae052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Cardiac troponin T (cTnT) is key in diagnosing myocardial infarction (MI) but is also elevated in end-stage renal disease (ESRD) patients. Specific larger cTnT proteoforms were identified for the acute phase of MI, while in serum of ESRD patients solely small cTnT fragments were found. However, others allocated this to a pre-analytic effect due to abundant thrombin generation in serum. Therefore, we investigated the effect of various anticoagulation methods on cTnT composition and concentration and compared the cTnT composition of MI and ESRD patients. METHODS The agreement of cTnT concentrations between simultaneously collected serum, lithium-heparin (LH) plasma, and ethylenediaminetetraacetic acid (EDTA) plasma was studied using the high-sensitivity (hs-)cTnT immunoassay. cTnT proteoform composition was investigated in a standardized time-dependent manner through spike experiments and in simultaneously collected blood matrixes of MI and ESRD patients. RESULTS Excellent hs-cTnT concentration agreements were observed across all blood matrixes (slopes > 0.98; 95% CI, 0.96-1.04). Time-dependent degradation (40 kDa intact:29 kDa fragment:15 to 18 kDa fragments) was found in LH plasma and EDTA plasma, and serum in ratios (%) of 90:10:0, 0:5:95, and 0:0:100, respectively (48 h after blood collection). Moreover, gel filtration chromatography (GFC) profiles illustrated mainly larger cTnT proteoforms in MI patients, while in ESRD patients mainly 15 to 18 kDa fragments were found for all matrices. CONCLUSIONS The extent of cTnT degradation in vitro is dependent on the (anti)coagulation method, without impacting hs-cTnT concentrations. Furthermore, mainly larger cTnT proteoforms were present in MI patients, while in ESRD patients mainly small 15 to 18 kDa cTnT fragments were found. These insights are essential when developing a novel hs-cTnT assay targeting larger cTnT proteoforms.
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Affiliation(s)
- Wim H M Vroemen
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Ellen J S Denessen
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
| | - William P T M van Doorn
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Kelly E J M Pelzer
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Tilman M Hackeng
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
| | - Elisabeth J R Litjens
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Yvonne M C Henskens
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
| | - Frank M van der Sande
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Will K W H Wodzig
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Jeroen P Kooman
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Otto Bekers
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
| | - Douwe de Boer
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Alma M A Mingels
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
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2
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Hu J, Du Y, Zhou Y, Wang H. High sensitivity troponins and mortality in the population with metabolic dysfunction-associated steatotic liver disease. Sci Rep 2024; 14:19541. [PMID: 39174636 PMCID: PMC11341865 DOI: 10.1038/s41598-024-70645-7] [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: 04/29/2024] [Accepted: 08/20/2024] [Indexed: 08/24/2024] Open
Abstract
Given the global high prevalence of MASLD and its poor CVD prognosis, it is essential to perform risk stratification for MASLD patients. The specific impact of High Sensitivity Troponins (hs-cTn ) on mortality in MASLD patients remains unexplored. The NHANES databases from 1999 to 2004, which include data on high-sensitivity cardiac troponin (hs-cTn) levels and comorbidities, were linked with the most recent mortality dataset. Myocardial injury was determined using the 99th upper reference limits (URL) for hs-cTn. Our study included 3460 MASLD patients. The mean follow-up duration was 192 months, during which 1074 (23%) MASLD participants died from all-cause mortality, and 363 (7.3%) died from CVD mortality. Our findings indicate that MASLD patients with elevated levels of hs-cTnT (> 99th URL) exhibit increased risks of all-cause mortality [adjusted hazard ratio (aHR) = 1.93] and CVD mortality (aHR = 2.4). Similar results were observed for hs-cTnI, where the aHRs for all-cause mortality and CVD mortality were 2.03 and 2.97, respectively. Furthermore, we identified a nonlinear dose-response relationship between hs-cTn levels and the risk of mortality (P for nonlinearity < 0.001). Our findings suggest that hs-cTn can predict mortality risk in MASLD, aiding clinicians in risk-stratifying this population. Therefore, we recommend considering hs-cTn detection in individuals with MASLD to effectively assess their future mortality risk.
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Affiliation(s)
- Jingjing Hu
- Department of Emergency Medicine, Hangzhou Third People's Hospital, Hangzhou, China
| | - Yuteng Du
- Department of Emergency Medicine, Hangzhou Third People's Hospital, Hangzhou, China
- Department of Allergy and Clinical Immunology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yidan Zhou
- Department of Emergency Medicine, Hangzhou Third People's Hospital, Hangzhou, China.
| | - Huiying Wang
- Department of Allergy and Clinical Immunology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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3
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Jaffe AS. Analysis of Troponin Fragments: The Start of a New Era-Perhaps? Clin Chem 2024; 70:1003-1005. [PMID: 38973023 DOI: 10.1093/clinchem/hvae095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 06/18/2024] [Indexed: 07/09/2024]
Affiliation(s)
- Allan S Jaffe
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, United States
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States
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4
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Salonen SM, Tuominen TJK, Raiko KIS, Vasankari T, Aalto R, Hellman TA, Lahtinen SE, Soukka T, Airaksinen KEJ, Wittfooth ST. Highly Sensitive Immunoassay for Long Forms of Cardiac Troponin T Using Upconversion Luminescence. Clin Chem 2024; 70:1037-1045. [PMID: 38888909 DOI: 10.1093/clinchem/hvae075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 05/06/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND Long cardiac troponin T (cTnT) has been proposed to be a promising and more specific biomarker of acute myocardial infarction (AMI). As it represents a subfraction of circulating cTnT, detection of very low concentrations is a requirement. The aim of this study was to develop a novel, highly sensitive immunoassay for long cTnT. METHODS A two-step sandwich-type immunoassay for long cTnT was developed, utilizing upconverting nanoparticles (UCNPs) as reporters. The limits of detection and quantitation were determined for the assay. Linearity and matrix effects were evaluated. Performance with clinical samples was assessed with samples from patients with non-ST elevation myocardial infarction (NSTEMI, n = 30) and end-stage renal disease (ESRD, n = 37) and compared to a previously developed time-resolved fluorescence (TRF)-based long cTnT assay and a commercial high-sensitivity cTnT assay. RESULTS The novel assay reached a 28-fold lower limit of detection (0.40 ng/L) and 14-fold lower limit of quantitation (1.79 ng/L) than the previously developed TRF long cTnT assay. Li-heparin and EDTA plasma, but not serum, were found to be suitable sample matrixes for the assay. In a receiver operating characteristics curve analysis, the troponin ratio (long/total cTnT) determined with the novel assay showed excellent discrimination between NSTEMI and ESRD with an area under the curve of 0.986 (95% CI, 0.967-1.000). CONCLUSIONS By utilizing upconversion luminescence technology, we developed a highly sensitive long cTnT assay. This novel assay can be a valuable tool for investigating the full potential of long cTnT as a biomarker for AMI. ClinicalTrials.gov Registration Number: NCT04465591.
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Affiliation(s)
- Selma M Salonen
- Biotechnology Unit, Department of Life Technologies, University of Turku, Turku, Finland
| | - Tuulia J K Tuominen
- Biotechnology Unit, Department of Life Technologies, University of Turku, Turku, Finland
| | - Kirsti I S Raiko
- Biotechnology Unit, Department of Life Technologies, University of Turku, Turku, Finland
| | - Tuija Vasankari
- Heart Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Rami Aalto
- Biotechnology Unit, Department of Life Technologies, University of Turku, Turku, Finland
| | - Tapio A Hellman
- Kidney Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Satu E Lahtinen
- Biotechnology Unit, Department of Life Technologies, University of Turku, Turku, Finland
| | - Tero Soukka
- Biotechnology Unit, Department of Life Technologies, University of Turku, Turku, Finland
| | | | - Saara T Wittfooth
- Biotechnology Unit, Department of Life Technologies, University of Turku, Turku, Finland
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Clerico A, Zaninotto M, Aimo A, Galli C, Sandri MT, Correale M, Dittadi R, Migliardi M, Fortunato A, Belloni L, Plebani M. Assessment of cardiovascular risk and physical activity: the role of cardiac-specific biomarkers in the general population and athletes. Clin Chem Lab Med 2024; 0:cclm-2024-0596. [PMID: 39016272 DOI: 10.1515/cclm-2024-0596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 06/11/2024] [Indexed: 07/18/2024]
Abstract
The first part of this Inter-Society Document describes the mechanisms involved in the development of cardiovascular diseases, particularly arterial hypertension, in adults and the elderly. It will also examine how consistent physical exercise during adolescence and adulthood can help maintain blood pressure levels and prevent progression to symptomatic heart failure. The discussion will include experimental and clinical evidence on the use of specific exercise programs for preventing and controlling cardiovascular diseases in adults and the elderly. In the second part, the clinical relevance of cardiac-specific biomarkers in assessing cardiovascular risk in the general adult population will be examined, with a focus on individuals engaged in sports activities. This section will review recent studies that suggest a significant role of biomarkers in assessing cardiovascular risk, particularly the presence of cardiac damage, in athletes who participate in high-intensity sports. Finally, the document will discuss the potential of using cardiac-specific biomarkers to monitor the effectiveness of personalized physical activity programs (Adapted Physical Activity, APA). These programs are prescribed for specific situations, such as chronic diseases or physical disabilities, including cardiovascular diseases. The purposes of this Inter-Society Document are the following: 1) to discuss the close pathophysiological relationship between physical activity levels (ranging from sedentary behavior to competitive sports), age categories (from adolescence to elderly age), and the development of cardiovascular diseases; 2) to review in detail the experimental and clinical evidences supporting the role of cardiac biomarkers in identifying athletes and individuals of general population at higher cardiovascular risk; 3) to stimulate scientific societies and organizations to develop specific multicenter studies that may take into account the role of cardiac biomarkers in subjects who follow specific exercise programs in order to monitor their cardiovascular risk.
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Affiliation(s)
- Aldo Clerico
- Coordinator of the Study Group on Cardiac Biomarkers of the Italian Societies SIBioC and ELAS, Pisa, Italy
| | | | - Alberto Aimo
- Fondazione CNR - Regione Toscana G. Monasterio, Pisa, Italy
| | | | | | - Mario Correale
- UOC Medical Pathology, IRCCS De Bellis, Castellana Grotte, Bari, Italy
| | | | - Marco Migliardi
- Primario Emerito S.C. Laboratorio Analisi Chimico-Cliniche e Microbiologia, Ospedale Umberto I, A.O. Ordine Mauriziano di Torino, Turin, Italy
| | | | - Lucia Belloni
- Dipartimento di Diagnostica - per Immagini e Medicina di Laboratorio, Laboratorio Autoimmunità, Allergologia e Biotecnologie Innovative, Azienda USL-IRCCS di Reggio Emilia, Emilia-Romagna, Italy
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6
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Janssen SLJE, Lamers SK, Vroemen WHM, Denessen EJS, Berge K, Bekers O, Hopman MTE, Brink M, Habets J, Nijveldt R, Van Everdingen WM, Aengevaeren VL, Mingels AMA, Eijsvogels TMH. Cardiac troponin concentrations following exercise and the association with cardiovascular disease and outcomes: rationale and design of the prospective TREAT cohort study. BMJ Open Sport Exerc Med 2024; 10:e002070. [PMID: 38882206 PMCID: PMC11177668 DOI: 10.1136/bmjsem-2024-002070] [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] [Accepted: 05/29/2024] [Indexed: 06/18/2024] Open
Abstract
Exercise can produce transient elevations of cardiac troponin (cTn) concentrations, which may resemble the cTn release profile of myocardial infarction. Consequently, clinical interpretation of postexercise cTn elevations (ie, values above the 99th percentile upper reference limit) remains challenging and may cause clinical confusion. Therefore, insight into the physiological versus pathological nature of postexercise cTn concentrations is warranted. We aim to (1) establish resting and postexercise reference values for recreational athletes engaged in walking, cycling or running exercise; (2) compare the prevalence of (sub)clinical coronary artery disease in athletes with high versus low postexercise cTn concentrations and (3) determine the association between postexercise cTn concentrations and the incidence of major adverse cardiovascular events (MACE) and mortality during long-term follow-up. For this purpose, the prospective TRoponin concentrations following Exercise and the Association with cardiovascular ouTcomes (TREAT) observational cohort study was designed to recruit 1500 recreational athletes aged ≥40 to <70 years who will participate in Dutch walking, cycling and running events. Baseline and postexercise high-sensitivity cTnT and cTnI concentrations will be determined. The prevalence and magnitude of coronary atherosclerosis on computed tomography (eg, coronary artery calcium score, plaque type, stenosis degree and CT-derived fractional flow reserve) will be compared between n=100 athletes with high postexercise cTn concentrations vs n=50 age-matched, sex-matched and sport type-matched athletes with low postexercise cTn concentrations. The incidence of MACE and mortality will be assessed in the entire cohort up to 20 years follow-up. The TREAT study will advance our understanding of the clinical significance of exercise-induced cTn elevations in middle-aged and older recreational athletes. Trial registration number NCT06295081.
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Affiliation(s)
- Sylvan L J E Janssen
- Department of Medical BioSciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Sacha K Lamers
- Central Diagnostic Laboratory, Maastricht University Medical Centre+, Maastricht, Netherlands
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Wim H M Vroemen
- Central Diagnostic Laboratory, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Ellen J S Denessen
- Central Diagnostic Laboratory, Maastricht University Medical Centre+, Maastricht, Netherlands
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Kristian Berge
- Department of Medical BioSciences, Radboud University Medical Center, Nijmegen, Netherlands
- Institute for Clinical Medicine, University of Oslo, Oslo, Norway
| | - Otto Bekers
- Central Diagnostic Laboratory, Maastricht University Medical Centre+, Maastricht, Netherlands
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Maria T E Hopman
- Department of Medical BioSciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Monique Brink
- Department of Medical Imaging, Radboud University Medical Center, Nijmegen, Netherlands
| | - Jesse Habets
- Department of Radiology, Haaglanden Medical Center Bronovo, Den Haag, Netherlands
| | - Robin Nijveldt
- Department of Cardiology, Radboud University Medical Center, Nijmegen, Netherlands
- Netherlands Heart Institute, Utrecht, Netherlands
| | - Wouter M Van Everdingen
- Department of Medical Imaging, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Radiology and Nuclear Medicine, Rijnstate Hospital, Arnhem, Netherlands
| | - Vincent L Aengevaeren
- Department of Medical BioSciences, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Cardiology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Alma M A Mingels
- Central Diagnostic Laboratory, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Thijs M H Eijsvogels
- Department of Medical BioSciences, Radboud University Medical Center, Nijmegen, Netherlands
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7
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Bollen Pinto B, Ackland GL. Pathophysiological mechanisms underlying increased circulating cardiac troponin in noncardiac surgery: a narrative review. Br J Anaesth 2024; 132:653-666. [PMID: 38262855 DOI: 10.1016/j.bja.2023.12.017] [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: 06/12/2023] [Revised: 11/23/2023] [Accepted: 12/15/2023] [Indexed: 01/25/2024] Open
Abstract
Assay-specific increases in circulating cardiac troponin are observed in 20-40% of patients after noncardiac surgery, depending on patient age, type of surgery, and comorbidities. Increased cardiac troponin is consistently associated with excess morbidity and mortality after noncardiac surgery. Despite these findings, the underlying mechanisms are unclear. The majority of interventional trials have been designed on the premise that ischaemic cardiac disease drives elevated perioperative cardiac troponin concentrations. We consider data showing that elevated circulating cardiac troponin after surgery could be a nonspecific marker of cardiomyocyte stress. Elevated concentrations of circulating cardiac troponin could reflect coordinated pathological processes underpinning organ injury that are not necessarily caused by ischaemia. Laboratory studies suggest that matching of coronary artery autoregulation and myocardial perfusion-contraction coupling limit the impact of systemic haemodynamic changes in the myocardium, and that type 2 ischaemia might not be the likeliest explanation for cardiac troponin elevation in noncardiac surgery. The perioperative period triggers multiple pathological mechanisms that might cause cardiac troponin to cross the sarcolemma. A two-hit model involving two or more triggers including systemic inflammation, haemodynamic strain, adrenergic stress, and autonomic dysfunction might exacerbate or initiate acute myocardial injury directly in the absence of cell death. Consideration of these diverse mechanisms is pivotal for the design and interpretation of interventional perioperative trials.
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Affiliation(s)
- Bernardo Bollen Pinto
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland.
| | - Gareth L Ackland
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK
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8
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Gokhan I, Dong W, Grubman D, Mezue K, Yang D, Wang Y, Gandhi PU, Kwan JM, Hu JR. Clinical Biochemistry of Serum Troponin. Diagnostics (Basel) 2024; 14:378. [PMID: 38396417 PMCID: PMC10887818 DOI: 10.3390/diagnostics14040378] [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: 01/01/2024] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Accurate measurement and interpretation of serum levels of troponin (Tn) is a central part of the clinical workup of a patient presenting with chest pain suspicious for acute coronary syndrome (ACS). Knowledge of the molecular characteristics of the troponin complex and test characteristics of troponin measurement assays allows for a deeper understanding of causes of false positive and false negative test results in myocardial injury. In this review, we discuss the molecular structure and functions of the constituent proteins of the troponin complex (TnT, TnC, and TnI); review the different isoforms of Tn and where they are from; survey the evolution of clinical Tn assays, ranging from first-generation to high-sensitivity (hs); provide a primer on statistical interpretation of assay results based on different clinical settings; and discuss potential causes of false results. We also summarize the advances in technologies that may lead to the development of future Tn assays, including the development of point of care assays and wearable Tn sensors for real-time continuous measurement.
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Affiliation(s)
- Ilhan Gokhan
- Yale School of Medicine, Yale University, New Haven, CT 06510, USA; (I.G.)
| | - Weilai Dong
- Yale School of Medicine, Yale University, New Haven, CT 06510, USA; (I.G.)
| | - Daniel Grubman
- Yale School of Medicine, Yale University, New Haven, CT 06510, USA; (I.G.)
| | - Kenechukwu Mezue
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06510, USA (J.M.K.)
| | - David Yang
- Department of Emergency Medicine, Yale School of Medicine, Yale University, New Haven, CT 06510, USA
| | - Yanting Wang
- Division of Cardiovascular Disease and Hypertension, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Parul U. Gandhi
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06510, USA (J.M.K.)
| | - Jennifer M. Kwan
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06510, USA (J.M.K.)
| | - Jiun-Ruey Hu
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06510, USA (J.M.K.)
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9
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Cardiac troponin release in athletes: What do we know and where should we go? CURRENT OPINION IN PHYSIOLOGY 2023. [DOI: 10.1016/j.cophys.2022.100629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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10
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Ragusa R, Masotti S, Musetti V, Rocchiccioli S, Prontera C, Perrone M, Passino C, Clerico A, Caselli C. Cardiac troponins: Mechanisms of release and role in healthy and diseased subjects. Biofactors 2022; 49:351-364. [PMID: 36518005 DOI: 10.1002/biof.1925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022]
Abstract
The cardiac troponins (cTns), cardiac troponin C (cTnC), cTnT, and cTnI are key elements of myocardial apparatus, fixed as protein complex on the thin filament of sarcomere and are involved in the regulation of excitation-contraction coupling of cardiomyocytes in the presence of Ca2+ . Circulating cTnT and cTnI (cTns) increase following cardiac tissue necrosis, and they are consolidated biomarkers of acute myocardial infarction (AMI). However, the use of high sensitivity (hs)-immunoassay tests for cTnT and cTnI has made it possible to identify a multitude of other clinical conditions associated with increased circulating levels of cTns. cTns can be measured also in the peripheral circulation of healthy subjects or athletes, suggesting that different mechanisms are involved in the release of cTns in the blood independently of cardiac cell necrosis. In this review, the molecular/cellular mechanisms involved in cTns release in blood and the exploitation of cTnI and cTnT as biomarkers of cardiac adverse events, in addition to cardiac necrosis, are discussed.
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Affiliation(s)
| | - Silvia Masotti
- Scuola Superiore Sant'Anna, Institute of Life Sciences, Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Veronica Musetti
- Scuola Superiore Sant'Anna, Institute of Life Sciences, Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | | | | | - Marco Perrone
- Department of Cardiology, University of Rome Tor Vergata, Rome, Italy
| | - Claudio Passino
- Scuola Superiore Sant'Anna, Institute of Life Sciences, Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Aldo Clerico
- Scuola Superiore Sant'Anna, Institute of Life Sciences, Pisa, Italy
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
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11
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Airaksinen KEJ, Aalto R, Hellman T, Vasankari T, Lahtinen A, Wittfooth S. Novel Troponin Fragmentation Assay to Discriminate Between Troponin Elevations in Acute Myocardial Infarction and End-Stage Renal Disease. Circulation 2022; 146:1408-1410. [PMID: 36315607 DOI: 10.1161/circulationaha.122.060845] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- K E Juhani Airaksinen
- Heart Center (K.E.J.A., T.V.), Turku University Hospital and University of Turku, Finland
| | - Rami Aalto
- Biotechnology Unit, Department of Life Technologies, University of Turku, Finland (R.A., A.L., S.W.)
| | - Tapio Hellman
- Kidney Center (T.H.), Turku University Hospital and University of Turku, Finland
| | - Tuija Vasankari
- Heart Center (K.E.J.A., T.V.), Turku University Hospital and University of Turku, Finland
| | - Akseli Lahtinen
- Biotechnology Unit, Department of Life Technologies, University of Turku, Finland (R.A., A.L., S.W.)
| | - Saara Wittfooth
- Biotechnology Unit, Department of Life Technologies, University of Turku, Finland (R.A., A.L., S.W.)
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12
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Chaulin AM. Cardiac Troponins as Biomarkers of Cardiac Myocytes Damage in Case of Arterial Hypertension: From Pathological Mechanisms to Predictive Significance. Life (Basel) 2022; 12:1448. [PMID: 36143484 PMCID: PMC9505657 DOI: 10.3390/life12091448] [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: 07/13/2022] [Revised: 08/09/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Many pathological conditions of both cardiovascular and non-cardiac origin in the course of their development cause damage to contractile cardiac muscle cells-cardiac myocytes (CMCs). One of the most sensitive and specific criteria for detecting CMCs are cardiac troponins (CTs), which are regulatory protein molecules that are released into the blood serum from CMCs upon their death or damage. New (high-sensitive) methods for detecting CTs allow the detection of minor CMCs damages at the earliest stages of cardiovascular diseases and can therefore change the understanding of disease development mechanisms and open up new diagnostic possibilities. One of the most common and dangerous early diseases of the cardiovascular system is arterial hypertension. The purpose of this paper is to summarize the pathophysiological mechanisms underlying CMCs damage and CTs release into the bloodstream in the case of arterial hypertension and to state the clinical significance of increased CTs levels in patients with arterial hypertension. MATERIALS AND METHODS This is a descriptive review, which was prepared using the following databases: Embase, Pubmed/Medline and Web of Science. The following key words were used in the literature search: "myocardial injury" and "arterial hypertension" in combination with the terms "cardiac troponins" and "mechanisms of increase". CONCLUSIONS According to a literature analysis, CMCs damage and CTs release in the case of arterial hypertension occur according to the following pathophysiological mechanisms: myocardial hypertrophy, CMCs apoptosis, damage to the CMC cell membrane and increase in its permeability for CTs molecules, as well as changes in the glomerular filtration rate. Most often, increased CTs serum levels in case of arterial hypertension indicate an unfavorable prognosis. Data on the CTs predictive significance in case of arterial hypertension open the prospects for the use of these biomarkers in the choice of patient management plans.
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Affiliation(s)
- Aleksey Michailovich Chaulin
- Department of Cardiology and Cardiovascular Surgery, Samara State Medical University, 443099 Samara, Russia; or ; Tel.: +7-(927)-770-25-87
- Department of Histology and Embryology, Samara State Medical University, 443099 Samara, Russia
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13
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Stavroulakis G, Methenitis S, Koutroulis G, Xanthis D, Cherouveim E, Kroupis C, Anastasiadis G, Ketselidi K, Vlachopoulou E, Tsolakis C, Koulouvaris P. Exploring the predictors and prognostic significance of exercise-induced cardiac troponin release in master athletes following a 28km mountain race. The Vamvakou Research Project. Biomarkers 2022; 27:418-426. [PMID: 35383512 DOI: 10.1080/1354750x.2022.2062449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ιntroduction. Etiology and significance of exercise-induced troponin release remains a contentious issue. We investigated the effect of a 28km mountain run on cardiac troponin I (cTnI), in relation to training, performance, nutritional, biochemical and echocardiography variables, in a group of 25 recreational male master athletes.Μaterial and methods. A comprehensive list of variables related with nutrition, training, performance and echocardiography, was collected pre- and post-race. Twenty four months later, outcomes regarding cardiovascular events was obtained.Results. Serum cTnI values were increased after the race, with mean values rising from 7.2 ± 2.2 (before) to 80.0 ± 33.2ng/L (post race), (p < 0.001) and 23/25(92%) exceeding Upper Reference limit (50ng/L). Echocardiography did not reveal significant alterations, or correlations with cTnI values. The % difference in hs-cTnI concentrations pre- and post race correlated positively with age, race-induced changes of selected muscle damage indices, resistance training volume, and negatively with endurance capacity and training volume (r: -0.727 to 0.725, p < 0.05). All athletes reported no cardiovascular event during the 24 month period post race.Conclusion. cTnI elevation induced by a 28km mountain running race was not correlated with echocardiographic, nutritional parameters and was less pronounced in athletes with larger endurance training history, in contrast with resistance training and age.
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Affiliation(s)
- George Stavroulakis
- Sports Excellence, 1st Orthopedics Department, School of Health Sciences, National and Kapodistrian University of Athens, Greece.,Division of Cardiology, Hygeias Melathron, Athens, Greece
| | - Spyridon Methenitis
- Sports Excellence, 1st Orthopedics Department, School of Health Sciences, National and Kapodistrian University of Athens, Greece.,Sports Performance Laboratory, School of Physical Education & Sports Science, National and Kapodistrian University of Athens, Greece
| | | | | | - Eugenia Cherouveim
- Sports Excellence, 1st Orthopedics Department, School of Health Sciences, National and Kapodistrian University of Athens, Greece.,Sports Performance Laboratory, School of Physical Education & Sports Science, National and Kapodistrian University of Athens, Greece
| | - Christos Kroupis
- Sports Excellence, 1st Orthopedics Department, School of Health Sciences, National and Kapodistrian University of Athens, Greece
| | | | - Kleopatra Ketselidi
- Department of Nutrition and Dietetics, School of Health Science & Education, Harokopio University of Athens, Greece
| | - Elpiniki Vlachopoulou
- Department of Nutrition Sciences and Dietology, Faculty of Health Sciences, International Hellenic University, Thessaloniki, Greece
| | - Charilaos Tsolakis
- Sports Excellence, 1st Orthopedics Department, School of Health Sciences, National and Kapodistrian University of Athens, Greece.,Sports Performance Laboratory, School of Physical Education & Sports Science, National and Kapodistrian University of Athens, Greece
| | - Panagiotis Koulouvaris
- Sports Excellence, 1st Orthopedics Department, School of Health Sciences, National and Kapodistrian University of Athens, Greece
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14
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Clerico A, Aimo A, Cantinotti M. High-sensitivity cardiac troponins in pediatric population. Clin Chem Lab Med 2022; 60:18-32. [PMID: 34679265 DOI: 10.1515/cclm-2021-0976] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 10/11/2021] [Indexed: 12/15/2022]
Abstract
Apparently healthy children often complain of chest pain, especially after physical exercise. Cardiac biomarker levels are often measured, but the clinical relevance of these assays in children is still debated, even when a cardiac disease is present. Coronary artery disease is exceedingly rare in children, but elevated circulating levels of cardiac troponin I (cTnI) and T (cTnT) in an acute setting may help detect heart failure due to an unknown cardiac disorder, or worsening heart failure, particularly in combination with other biomarkers such as B-type natriuretic peptides. However, the interpretation of biomarkers is often challenging, especially when institutions transition from conventional cTn assays to high-sensitivity (hs-cTn) methods, as well demonstrated in the emergency setting for adult patients. From a clinical perspective, the lack of established reference values in the pediatric age is the main problem limiting the use of hs-cTn methods for the diagnosis and managements of cardiac diseases in infants, children and adolescents. This review aims to discuss the possibility to use hs-cTnI and hs-cTnT to detect cardiac disease and to explore age-related differences in biomarker levels in the pediatric age. We start from some analytical and pathophysiological considerations related to hs-cTn assays. Then, after a systematic literature search, we discuss the current evidence and possible limitations of hs-cTn assay as indicators of cardiac disease in the most frequently cardiac disease in pediatric setting.
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Affiliation(s)
- Aldo Clerico
- Fondazione CNR-Regione Toscana G. Monasterio and Scuola Superiore Sant'Anna, Pisa, Italy
| | - Alberto Aimo
- Fondazione CNR-Regione Toscana G. Monasterio and Scuola Superiore Sant'Anna, Pisa, Italy
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15
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Clerico A, Zaninotto M, Aimo A, Dittadi R, Cosseddu D, Perrone M, Padoan A, Masotti S, Belloni L, Migliardi M, Fortunato A, Trenti T, Malloggi L, Cappelletti P, Galli GA, Bernardini S, Sciacovelli L, Plebani M. Use of high-sensitivity cardiac troponins in the emergency department for the early rule-in and rule-out of acute myocardial infarction without persistent ST-segment elevation (NSTEMI) in Italy. Clin Chem Lab Med 2021; 60:169-182. [PMID: 34927403 DOI: 10.1515/cclm-2021-1085] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/26/2021] [Indexed: 12/15/2022]
Abstract
Serial measurements of cardiac troponin are recommended by international guidelines to diagnose myocardial infarction (MI) since 2000. However, some relevant differences exist between the three different international guidelines published between 2020 and 2021 for the management of patients with chest pain and no ST-segment elevation. In particular, there is no agreement on the cut-offs or absolute change values to diagnose non-ST-segment elevation MI (NSTEMI). Other controversial issues concern the diagnostic accuracy and cost-effectiveness of cut-off values for the most rapid algorithms (0 h/1 h or 0 h/2 h) to rule-in and rule-out NSTEMI. Finally, another important point is the possible differences between demographic and clinical characteristics of patients enrolled in multicenter trials compared to those routinely admitted to the Emergency Department in Italy. The Study Group of Cardiac Biomarkers, supported by the Italian Scientific Societies Società Italiana di Biochimica Clinica, Italian Society of the European Ligand Assay Society, and Società Italiana di Patolgia Clinica e Medicina di Laboratorio decided to revise the document previously published in 2013 about the management of patients with suspected NSTEMI, and to provide some suggestions for the use of these biomarkers in clinical practice, with a particular focus on the Italian setting.
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Affiliation(s)
- Aldo Clerico
- Fondazione CNR Regione Toscana G. Monasterio e Scuola Superiore Sant'Anna, Pisa, Italy
| | - Martina Zaninotto
- Department of Laboratory Medicine, University Hospital of Padova, Padova, Italy.,Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Alberto Aimo
- Fondazione CNR Regione Toscana G. Monasterio e Scuola Superiore Sant'Anna, Pisa, Italy
| | - Ruggero Dittadi
- Ospedale dell'Angelo ULSS 3 Serenissima, Laboratorio di Analisi Cliniche, Mestre, Italy
| | - Domenico Cosseddu
- S.C. Laboratorio Analisi, A.O. Ordine Mauriziano di Torino, Torino, Italy
| | - Marco Perrone
- Division of Cardiology and Clinical Biochemistry, University of Rome Tor Vergata, Rome, Italy
| | - Andrea Padoan
- Department of Laboratory Medicine, University Hospital of Padova, Padova, Italy
| | - Silvia Masotti
- Fondazione CNR Regione Toscana G. Monasterio e Scuola Superiore Sant'Anna, Pisa, Italy
| | - Lucia Belloni
- Dipartimento di Medicina di laboratorio, Arcispedale Santa Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Marco Migliardi
- S.C. Laboratorio Analisi, A.O. Ordine Mauriziano di Torino, Torino, Italy
| | | | - Tommaso Trenti
- Azienda Ospedaliero - Universitaria Policlinico di Modena c/o Ospedale Civile di Baggiovara, Modena, Italy
| | - Lucia Malloggi
- Laboratorio Analisi, Azienda Ospedaliera-Universitaria di Pisa, Pisa, Italy
| | | | | | - Sergio Bernardini
- Division of Cardiology and Clinical Biochemistry, University of Rome Tor Vergata, Rome, Italy
| | - Laura Sciacovelli
- Department of Laboratory Medicine, University Hospital of Padova, Padova, Italy
| | - Mario Plebani
- Department of Laboratory Medicine, University Hospital of Padova, Padova, Italy
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16
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Aengevaeren VL, Baggish AL, Chung EH, George K, Kleiven Ø, Mingels AMA, Ørn S, Shave RE, Thompson PD, Eijsvogels TMH. Exercise-Induced Cardiac Troponin Elevations: From Underlying Mechanisms to Clinical Relevance. Circulation 2021; 144:1955-1972. [PMID: 34898243 PMCID: PMC8663527 DOI: 10.1161/circulationaha.121.056208] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Supplemental Digital Content is available in the text. Serological assessment of cardiac troponins (cTn) is the gold standard to assess myocardial injury in clinical practice. A greater magnitude of acutely or chronically elevated cTn concentrations is associated with lower event-free survival in patients and the general population. Exercise training is known to improve cardiovascular function and promote longevity, but exercise can produce an acute rise in cTn concentrations, which may exceed the upper reference limit in a substantial number of individuals. Whether exercise-induced cTn elevations are attributable to a physiological or pathological response and if they are clinically relevant has been debated for decades. Thus far, exercise-induced cTn elevations have been viewed as the only benign form of cTn elevations. However, recent studies report intriguing findings that shed new light on the underlying mechanisms and clinical relevance of exercise-induced cTn elevations. We will review the biochemical characteristics of cTn assays, key factors determining the magnitude of postexercise cTn concentrations, the release kinetics, underlying mechanisms causing and contributing to exercise-induced cTn release, and the clinical relevance of exercise-induced cTn elevations. We will also explain the association with cardiac function, correlates with (subclinical) cardiovascular diseases and exercise-induced cTn elevations predictive value for future cardiovascular events. Last, we will provide recommendations for interpretation of these findings and provide direction for future research in this field.
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Affiliation(s)
- Vincent L Aengevaeren
- Radboud Institute for Health Sciences, Departments of Physiology (V.L.A., T.M.H.E.), Radboud University Medical Center, Nijmegen, The Netherlands.,Cardiology (V.L.A.), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Aaron L Baggish
- Cardiovascular Performance Program, Massachusetts General Hospital, Boston (A.L.B.)
| | - Eugene H Chung
- Michigan Medicine, University of Michigan, Ann Arbor (E.H.C.)
| | - Keith George
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, United Kingdom (K.G.)
| | - Øyunn Kleiven
- Cardiology Department, Stavanger University Hospital, Norway (Ø.K., S.Ø.)
| | - Alma M A Mingels
- Department of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center Maastricht, The Netherlands (A.M.A.M.)
| | - Stein Ørn
- Cardiology Department, Stavanger University Hospital, Norway (Ø.K., S.Ø.).,Department of Electrical Engineering and Computer Science, University of Stavanger, Norway (S.Ø.)
| | - Rob E Shave
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Vancouver, Canada (R.E.S.)
| | | | - Thijs M H Eijsvogels
- Radboud Institute for Health Sciences, Departments of Physiology (V.L.A., T.M.H.E.), Radboud University Medical Center, Nijmegen, The Netherlands
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17
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Martinez MW, Kim JH, Shah AB, Phelan D, Emery MS, Wasfy MM, Fernandez AB, Bunch TJ, Dean P, Danielian A, Krishnan S, Baggish AL, Eijsvogels TMH, Chung EH, Levine BD. Exercise-Induced Cardiovascular Adaptations and Approach to Exercise and Cardiovascular Disease: JACC State-of-the-Art Review. J Am Coll Cardiol 2021; 78:1453-1470. [PMID: 34593128 DOI: 10.1016/j.jacc.2021.08.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 12/12/2022]
Abstract
The role of the sports cardiologist has evolved into an essential component of the medical care of athletes. In addition to the improvement in health outcomes caused by reductions in cardiovascular risk, exercise results in adaptations in cardiovascular structure and function, termed exercise-induced cardiac remodeling. As diagnostic modalities have evolved over the last century, we have learned much about the healthy athletic adaptation that occurs with exercise. Sports cardiologists care for those with known or previously unknown cardiovascular conditions, distinguish findings on testing as physiological adaptation or pathological changes, and provide evidence-based and "best judgment" assessment of the risks of sports participation. We review the effects of exercise on the heart, the approach to common clinical scenarios in sports cardiology, and the importance of a patient/athlete-centered, shared decision-making approach in the care provided to athletes.
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Affiliation(s)
- Matthew W Martinez
- Atlantic Health, Morristown Medical Center, Morristown, New Jersey, USA.
| | - Jonathan H Kim
- Emory School of Medicine, Emory Clinical Cardiovascular Research Institute, Atlanta, Georgia, USA
| | - Ankit B Shah
- Sports and Performance Cardiology Program, MedStar Health, Baltimore, Maryland, USA
| | - Dermot Phelan
- Sports Cardiology Center, Sanger Heart and Vascular Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Michael S Emery
- Sports Cardiology Center, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Meagan M Wasfy
- Massachusetts General Hospital Cardiovascular Performance Program, Boston, Massachusetts, USA
| | - Antonio B Fernandez
- Hartford HealthCare Heart and Vascular Institute, Hartford Hospital, Hartford, Connecticut, USA
| | - T Jared Bunch
- University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Peter Dean
- University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Alfred Danielian
- Las Vegas Heart Associates-affiliated with Mountain View Hospital, Las Vegas, Nevada, USA
| | - Sheela Krishnan
- Division of Cardiology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Aaron L Baggish
- Massachusetts General Hospital Cardiovascular Performance Program, Boston, Massachusetts, USA
| | - Thijs M H Eijsvogels
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Physiology, Nijmegen, the Netherlands
| | - Eugene H Chung
- West MI Program, Cardiac EP Service, Sports Cardiology Clinic, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Benjamin D Levine
- Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Dallas, and The University of Texas Southwestern Medical Center, Dallas, Texas, USA
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18
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Bjørkavoll‐Bergseth M, Erevik CB, Kleiven Ø, Eijsvogels TMH, Skadberg Ø, Frøysa V, Wiktorski T, Auestad B, Edvardsen T, Moberg Aakre K, Ørn S. Determinants of Interindividual Variation in Exercise-Induced Cardiac Troponin I Levels. J Am Heart Assoc 2021; 10:e021710. [PMID: 34459237 PMCID: PMC8649268 DOI: 10.1161/jaha.121.021710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/14/2021] [Indexed: 12/03/2022]
Abstract
Background Postexercise cardiac troponin levels show considerable interindividual variations. This study aimed to identify the major determinants of this postexercise variation in cardiac troponin I (cTnI) following 3 episodes of prolonged high-intensity endurance exercise. Methods and Results Study subjects were recruited among prior participants in a study of recreational cyclists completing a 91-km mountain bike race in either 2013 or 2014 (first race). In 2018, study participants completed a cardiopulmonary exercise test 2 to 3 weeks before renewed participation in the same race (second race). Blood was sampled before and at 3 and 24 hours following all exercises. Blood samples were analyzed using the same Abbot high-sensitivity cTnI STAT assay. Fifty-nine individuals (aged 50±9 years, 13 women) without cardiovascular disease were included. Troponin values were lowest before, highest at 3 hours, and declining at 24 hours. The largest cTnI difference was at 3 hours following exercise between the most (first race) (cTnI: 200 [87-300] ng/L) and the least strenuous exercise (cardiopulmonary exercise test) (cTnI: 12 [7-23] ng/L; P<0.001). The strongest correlation between troponin values at corresponding times was before exercise (r=0.92, P<0.0001). The strongest correlations at 3 hours were between the 2 races (r=0.72, P<0.001) and at 24 hours between the cardiopulmonary exercise test and the second race (r=0.83, P<0.001). Participants with the highest or lowest cTnI levels showed no differences in race performance or baseline echocardiographic parameters. Conclusions The variation in exercise-induced cTnI elevation is largely determined by a unique individual cTnI response that is dependent on the duration of high-intensity exercise and the timing of cTnI sampling. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT02166216.
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Affiliation(s)
- Magnus Bjørkavoll‐Bergseth
- Cardiology DepartmentStavanger University HospitalStavangerNorway
- Department of Clinical ScienceUniversity of BergenBergenNorway
| | | | - Øyunn Kleiven
- Cardiology DepartmentStavanger University HospitalStavangerNorway
| | - Thijs M. H. Eijsvogels
- Department of PhysiologyRadboud Institute for Health SciencesRadboud University Medical CenterNijmegenthe Netherlands
| | - Øyvind Skadberg
- Department of BiochemistryStavanger University HospitalStavangerNorway
| | - Vidar Frøysa
- Cardiology DepartmentStavanger University HospitalStavangerNorway
| | - Tomasz Wiktorski
- Department of Electrical Engineering and Computer ScienceUniversity of StavangerStavangerNorway
| | - Bjørn Auestad
- Department of Mathematics and PhysicsUniversity of StavangerStavangerNorway
- Research DepartmentStavanger University HospitalStavangerNorway
| | - Thor Edvardsen
- Department of CardiologyOslo University HospitalOsloNorway
- Institute for Clinical MedicineUniversity of OsloOsloNorway
| | - Kristin Moberg Aakre
- Department of Clinical ScienceUniversity of BergenBergenNorway
- Department of Medical Biochemistry and PharmacologyHaukeland University HospitalBergenNorway
- Department of Heart DiseaseHaukeland University HospitalBergenNorway
| | - Stein Ørn
- Cardiology DepartmentStavanger University HospitalStavangerNorway
- Department of Electrical Engineering and Computer ScienceUniversity of StavangerStavangerNorway
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19
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Damen SAJ, Cramer GE, Dieker HJ, Gehlmann H, Ophuis TJMO, Aengevaeren WRM, Fokkert M, Verheugt FWA, Suryapranata H, Wu AH, van Wijk XMR, Brouwer MA. Cardiac Troponin Composition Characterization after Non ST-Elevation Myocardial Infarction: Relation with Culprit Artery, Ischemic Time Window, and Severity of Injury. Clin Chem 2021; 67:227-236. [PMID: 33418572 DOI: 10.1093/clinchem/hvaa231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 09/10/2020] [Indexed: 11/14/2022]
Abstract
BACKGROUND Troponin composition characterization has been implicated as a next step to differentiate among non-ST elevation myocardial infarction (NSTEMI) patients and improve distinction from other conditions with troponin release. We therefore studied coronary and peripheral troponin compositions in relation to clinical variables of NSTEMI patients. METHODS Samples were obtained from the great cardiac vein (GCV), coronary sinus (CS), and peripheral circulation of 45 patients with NSTEMI. We measured total cTnI concentrations, and assessed both complex cTnI (binary cTnIC + all ternary cTnTIC forms), and large-size cTnTIC (full-size and partially truncated cTnTIC). Troponin compositions were studied in relation to culprit vessel localization (left anterior descending artery [LAD] or non-LAD), ischemic time window, and peak CK-MB value. RESULTS Sampling occurred at a median of 25 hours after symptom onset. Of total peripheral cTnI, a median of 87[78-100]% consisted of complex cTnI; and 9[6-15]% was large-size cTnTIC. All concentrations (total, complex cTnI, and large-size cTnTIC) were significantly higher in the CS than in peripheral samples (P < 0.001). For LAD culprit patients, GCV concentrations were all significantly higher; in non-LAD culprit patients, CS concentrations were higher. Proportionally, more large-size cTnTIC was present in the earliest sampled patients and in those with the highest CK-MB peaks. CONCLUSIONS In coronary veins draining the infarct area, concentrations of both full-size and degraded troponin were higher than in the peripheral circulation. This finding, and the observed associations of troponin composition with the ischemic time window and the extent of sustained injury may contribute to future characterization of different disease states among NSTEMI patients.
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Affiliation(s)
- Sander A J Damen
- Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Gilbert E Cramer
- Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hendrik-Jan Dieker
- Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Helmut Gehlmann
- Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ton J M Oude Ophuis
- Department of Cardiology, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | | | - Marion Fokkert
- Department of Clinical Chemistry, Isala Clinics, Zwolle, The Netherlands
| | - Freek W A Verheugt
- Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Harry Suryapranata
- Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alan H Wu
- Department of Clinical Chemistry, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA
| | - Xander M R van Wijk
- Department of Clinical Chemistry, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA
- Department of Pathology, The University of Chicago, Chicago, IL
| | - Marc A Brouwer
- Department of Cardiology, Radboud University Medical Center, Nijmegen, The Netherlands
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20
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Katrukha IA, Katrukha AG. Myocardial Injury and the Release of Troponins I and T in the Blood of Patients. Clin Chem 2021; 67:124-130. [PMID: 33418589 DOI: 10.1093/clinchem/hvaa281] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 10/28/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Cardiac troponin I (cTnI) and cTnT are the established biomarkers of cardiomyocyte damage and the recommended biomarkers for the diagnosis of acute myocardial infarction (MI). High-sensitivity immunochemical diagnostic systems are able to measure the cTn concentrations in the blood of a majority of healthy people. At the same time, the concentration of cTn may be increased not only after MI but also because of other pathologies that might affect myocardium. This effect reduces the clinical specificity of cTn for MI and may complicate the diagnosis. CONTENT This review summarizes the existing information regarding the causes and mechanisms that lead to the increase of cTn concentration in blood and the forms of cTn that are present in circulation after MI or other types of myocardial injury. SUMMARY Different etiologies of disease associated with increases of cTn above the 99th percentile and various mechanisms of troponin release from myocardium could result in the appearance of different forms of cTn in blood and provide the first clinical evidence of injury. Additional research is needed for the careful characterization of cTn forms that are present in the blood in different clinical settings. That knowledge may lead to the development of immunochemical systems that would differentiate certain forms of troponins and possibly certain types of cardiac disease.
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Affiliation(s)
- Ivan A Katrukha
- HyTest Ltd., Turku, Finland
- Department of Biochemistry, School of Biology, MV Lomonosov Moscow State University, Moscow, Russia
| | - Alexey G Katrukha
- HyTest Ltd., Turku, Finland
- Department of Biochemistry, School of Biology, MV Lomonosov Moscow State University, Moscow, Russia
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21
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Clerico A, Aimo A, Zaninotto M, Plebani M. Diagnostic algorithms for non-ST-segment elevation myocardial infarction: open issues. Clin Chem Lab Med 2021; 59:1761-1771. [PMID: 34225387 DOI: 10.1515/cclm-2021-0550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/22/2021] [Indexed: 11/15/2022]
Abstract
The use of serial measurement of cardiac troponin (cTn) is recommended by international guidelines for the diagnosis of myocardial infarction (MI) since 2000. This article focuses on factors influencing temporal changes in high-sensitive cTn (hs)-cTn and the impact of these factors on the diagnosis of non-ST-segment elevation MI (NSTEMI). The recommendations proposed by three different international guidelines published in 2020-2021 for the management of acute coronary syndromes (ACS) in patients presenting without persistent ST-segment elevation (NSTE) show some discrepancies. In particular, there is no agreement among these guidelines about cut-off or absolute change values to be used for the rule-in, especially regarding the use of sex-specific cut-off values. Furthermore, there are no sufficient evidences on the diagnostic accuracy and cost effectiveness related to cut-off values suggested for algorithms to be used by some hs-cTnI methods.
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Affiliation(s)
- Aldo Clerico
- Scuola Superiore Sant'Anna e Fondazione CNR - Regione Toscana G. Monasterio, Pisa, Italy
| | - Alberto Aimo
- Scuola Superiore Sant'Anna e Fondazione CNR - Regione Toscana G. Monasterio, Pisa, Italy
| | - Martina Zaninotto
- Dipartimento di Medicina di Laboratorio, Azienda Ospedaliera Universitaria di Padova, e Dipartimento di Medicina - Università di Padova, Padova, Italy
| | - Mario Plebani
- Dipartimento di Medicina di Laboratorio, Azienda Ospedaliera Universitaria di Padova, e Dipartimento di Medicina - Università di Padova, Padova, Italy
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22
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Deltombe M, Nevraumont A, Bayart JL, Pouleur AC, Labriola L, Gruson D. A colossal, enigmatic, and long-lasting high-sensitivity cardiac troponin T elevation. Clin Chim Acta 2021; 520:214-216. [PMID: 34126066 DOI: 10.1016/j.cca.2021.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/09/2021] [Accepted: 06/09/2021] [Indexed: 11/19/2022]
Abstract
This case describes the incidental finding of a massive and persistent elevation of troponin T in a patient with end-stage renal disease. This high troponin T value was not consistent with the patient's clinical condition and the laboratory was called in to investigate this discrepancy. After exclusion of analytical interference and discovery of a discordance between troponin T and troponin I, a clinical investigation including cardiac and whole-body magnetic resonance imaging was performed. Magnetic resonance imaging results allowed us to exclude a cardiac origin of troponin elevation but revealed a skeletal muscle pathology. This case constitutes the first description of high-sensitivity cardiac troponin T elevation due to musculoskeletal pathology without cardiac involvement in a patient with end-stage renal disease.
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Affiliation(s)
- Matthieu Deltombe
- Department of Clinical Biochemistry, Cliniques Universitaires St-Luc and Université Catholique de Louvain, Brussels, Belgium.
| | - Arnaud Nevraumont
- Department of Clinical Biochemistry, Cliniques Universitaires St-Luc and Université Catholique de Louvain, Brussels, Belgium
| | - Jean-Louis Bayart
- Department of Clinical Biochemistry, Cliniques Saint-Pierre, Ottignies, Belgium
| | - Anne-Catherine Pouleur
- Department of Cardiology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Laura Labriola
- Department of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Damien Gruson
- Department of Clinical Biochemistry, Cliniques Universitaires St-Luc and Université Catholique de Louvain, Brussels, Belgium; Pôle de recherche en Endocrinologie, Diabète et Nutrition, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires St-Luc and Université Catholique de Louvain, Brussels, Belgium
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23
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de Boer D, Streng AS, van Doorn WPTM, Vroemen WHM, Bekers O, Wodzig WKWH, Mingels AMA. Cardiac Troponin T: The Impact of Posttranslational Modifications on Analytical Immunoreactivity in Blood up to the Excretion in Urine. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1306:41-59. [PMID: 33959905 DOI: 10.1007/978-3-030-63908-2_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Cardiac troponin T (cTnT) is a sensitive and specific biomarker for detecting cardiac muscle injury. Its concentration in blood can be significantly elevated outside the normal reference range under several pathophysiological conditions. The classical analytical method in routine clinical analysis to detect cTnT in serum or plasma is a single commercial immunoassay, which is designed to quantify the intact cTnT molecule. The targeted epitopes are located in the central region of the cTnT molecule. However, in blood cTnT exists in different biomolecular complexes and proteoforms: bound (to cardiac troponin subunits or to immunoglobulins) or unbound (as intact protein or as proteolytic proteoforms). While proteolysis is a principal posttranslational modification (PTM), other confirmed PTMs of the proteoforms include N-terminal initiator methionine removal, N-acetylation, O-phosphorylation, O-(N-acetyl)-glucosaminylation, N(ɛ)-(carboxymethyl)lysine modification and citrullination. The immunoassay probably detects several of those cTnT biomolecular complexes and proteoforms, as long as they have the centrally targeted epitopes in common. While analytical cTnT immunoreactivity has been studied predominantly in blood, it can also be detected in urine, although it is unclear in which proteoform cTnT immunoreactivity is present in urine. This review presents an overview of the current knowledge on the pathophysiological lifecycle of cTnT. It provides insight into the impact of PTMs, not only on the analytical immunoreactivity, but also on the excretion of cTnT in urine as one of the waste routes in that lifecycle. Accordingly, and after isolating the proteoforms from urine of patients suffering from proteinuria and acute myocardial infarction, the structures of some possible cTnT proteoforms are reconstructed using mass spectrometry and presented.
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Affiliation(s)
- Douwe de Boer
- Unit of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands.
- NUTRIM, School of Nutrition and Translational Research in Metabolism, Medicine and Life Sciences (FHML) of Maastricht University (UM), Maastricht University Medical Center, Maastricht, The Netherlands.
| | - Alexander S Streng
- Unit of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
| | - William P T M van Doorn
- Unit of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Wim H M Vroemen
- Unit of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Otto Bekers
- Unit of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
- CARIM, School for Cardiovascular Diseases, Faculty of Health, Medicine and Life Sciences (FHML) of Maastricht University (UM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Will K W H Wodzig
- Unit of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
- NUTRIM, School of Nutrition and Translational Research in Metabolism, Medicine and Life Sciences (FHML) of Maastricht University (UM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Alma M A Mingels
- Unit of Clinical Chemistry, Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
- CARIM, School for Cardiovascular Diseases, Faculty of Health, Medicine and Life Sciences (FHML) of Maastricht University (UM), Maastricht University Medical Center, Maastricht, The Netherlands
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24
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Masotti S, Musetti V, Prontera C, Storti S, Passino C, Clerico A. Evaluation and Comparison with Other High-Sensitivity Methods of Analytical Performance and Measured Values of a New Laboratory Test for Cardiac Troponin I Assay. J Appl Lab Med 2021; 6:1237-1250. [DOI: 10.1093/jalm/jfab017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/22/2021] [Indexed: 12/30/2022]
Abstract
Abstract
Bakground
The aim of this study was to evaluate both analytical characteristics and clinical results of a new chemiluminescent method for the measurement of cardiac troponin I (cTnI), named VITROS ® High Sensitivity Troponin I Assay, using the VITROS® 3600 automated platform. The results found with this new method were compared to those observed with hs-cTnI ARCHITECT and ECLIA hs-cTnT ELECSYS methods.
Methods
For evaluation of analytical performance and comparison of clinical results, plasma samples (lithium-heparin), were collected from apparently healthy subjects and patients with cardiovascular diseases.
Results
The hs-cTnI VITROS method showed values for limit of blank (LoB 0.33 ng/L), limit of detection (LoD, 0.91 ng/L), limit of quantifications at 20% (LoQ 20% CV, 1.82 ng/L), and 10% (LoQ 10% CV, 4,74 ng/L), which are comparable to those previously reported for other hs-cTnI methods. Moreover, the clinical results of the hs-cTnI VITROS method were found to be closely correlated to those of hs-cTnI ARCHITECT (R = 0,9883, N = 198) and ECLIA hs-cTnT Elecsys (R = 0,9704, N = 293) methods.
Conclusions
The hs-cTnI VITROS method shows analytical performance comparable to other cTnI and cTnT assay. The results of this study confirm that there are significant systematic differences among hs-cTnI methods. Further multicenter studies using larger reference populations are needed in order to obtain a better estimation, especially of the 99° percentile URL values categorized for sex and age of hs-cTnI and hs-cTnT methods.
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Affiliation(s)
- Silvia Masotti
- Scuola Superiore Sant’Anna and Fondazione CNR Regione Toscana G. Monasterio, Pisa, Italy
| | - Veronica Musetti
- Scuola Superiore Sant’Anna and Fondazione CNR Regione Toscana G. Monasterio, Pisa, Italy
| | - Concetta Prontera
- Scuola Superiore Sant’Anna and Fondazione CNR Regione Toscana G. Monasterio, Pisa, Italy
| | - Simona Storti
- Scuola Superiore Sant’Anna and Fondazione CNR Regione Toscana G. Monasterio, Pisa, Italy
| | - Claudio Passino
- Scuola Superiore Sant’Anna and Fondazione CNR Regione Toscana G. Monasterio, Pisa, Italy
| | - Aldo Clerico
- Scuola Superiore Sant’Anna and Fondazione CNR Regione Toscana G. Monasterio, Pisa, Italy
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25
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Perrone MA, Storti S, Salvadori S, Pecori A, Bernardini S, Romeo F, Guccione P, Clerico A. Cardiac troponins: are there any differences between T and I? J Cardiovasc Med (Hagerstown) 2021; 22:797-805. [PMID: 33399346 DOI: 10.2459/jcm.0000000000001155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The most recent international guidelines recommend the measurement of cardiac troponin I (cTnI) and cardiac troponin T (cTnT) using high-sensitivity methods (hs-cTn) for the detection of myocardial injury and the differential diagnosis of acute coronary syndromes. Myocardial injury is a prerequisite for the diagnosis of acute myocardial infarction, but also a distinct entity. The 2018 Fourth Universal Definition of Myocardial Infarction states that myocardial injury is detected when at least one value above the 99th percentile upper reference limit is measured in a patient with high-sensitivity methods for cTnI or cTnT. Not infrequently, increased hs-cTnT levels are reported in patients with congenital or chronic neuromuscular diseases, while the hs-cTnI values are often in the normal range. Furthermore, some discrepancies between the results of laboratory tests for the two troponins are occasionally found in individuals apparently free of cardiac diseases, and also in patients with cardiac diseases. In this review article, authors discuss the biochemical, pathophysiological and analytical mechanisms which may cause discrepancies between hs-cTnI and hs-cTnT test results.
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Affiliation(s)
- Marco A Perrone
- Department of Pediatric Cardiology and Cardiac Surgery, Bambino Gesù Children's Hospital IRCCS Division of Cardiology, University of Rome Tor Vergata, Rome CNR-Regione Toscana G. Monasterio Foundation, Heart Hospital, Massa, and Scuola Superiore Sant'Anna CNR Institute of Clinical Physiology, Pisa Division of Clinical Biochemistry and Clinical Molecular Biology, University of Rome Tor Vergata, Rome, Italy
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26
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Abstract
The measurement of cardiac troponin (cTn) is recommended by all guidelines as the gold standard for the differential diagnosis of Acute Coronary Syndromes. The aim of this review is to discuss in details some key issues regarding both analytical and clinical characteristics of the high-sensitivity methods for cTn (hs-cTn), which are still considered controversial or unresolved. In particular, the major clinical concern regarding hs-cTn methods is the difficulty to differentiate the pathophysiological mechanism responsible for biomarker release from cardiomyocytes after reversible or irreversible injury, respectively. Indeed, recent experimental and clinical studies have demonstrated that different circulating forms of cTnI and cTnT can be respectively measured in plasma samples of patients with reversible or irreversible myocardial injury. Accordingly, a new generation of hs-Tn methods should be set up, based on immunometric immunoassays or chromatographic techniques, specific for circulating peptide forms more characteristics for reversible or irreversible myocardial injury. It is conceivable that this new generation of hs-cTn methods will complete the mission regarding the laboratory tests for specific cardiac biomarkers, started more than 20 years ago, which has already revolutionized the diagnosis, prognosis and management of patients with cardiac diseases.
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27
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Perrone MA, Passino C, Vassalle C, Masotti S, Romeo F, Guccione P, Bernardini S, Clerico A. Early evaluation of myocardial injury by means of high-sensitivity methods for cardiac troponins after strenuous and prolonged exercise. J Sports Med Phys Fitness 2020; 60:1297-1305. [PMID: 32720778 DOI: 10.23736/s0022-4707.20.11016-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
All the latest international guidelines recommend that cardiac troponin (cTn) I and T should be considered the preferred biomarkers for diagnosis of acute myocardial infarction. However, only in the last 5 years, a progressive improvement in analytical performance of immunometric assays has allowed the measurement of circulating levels of cTnI and cTnT in the large part of apparently healthy adult subjects. The routine use of these high-sensitivity methods for cardiac troponin (hs-cTn) assay has in a short time demonstrated that cardiac troponin concentrations frequently increase after strenuous prolonged exercise in healthy athletes. This acute response of hs-cTn assay following exercise was at first considered to be physiological and without long-term adverse consequences. More recent studies have suggested that exercise-induced increases in hs-cTn values may not be always a physiological response to exercise, but, conversely, it should sometimes be considered as an early cardiovascular risk marker. The aim of this review is to provide an overview of acute and chronic effects of strenuous physical exercise on hs-cTn circulating levels and also to discuss the potential pathophysiological and clinical implications of biomarker responses.
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Affiliation(s)
- Marco A Perrone
- Department of Cardiology, Tor Vergata University, Rome, Italy - .,Department of Pediatric Cardiology and Cardiac Surgery, Bambino Gesù Children's Hospital IRCCS, Rome, Italy - .,University Sports Center, Tor Vergata University, Rome, Italy -
| | - Claudio Passino
- Fondazione Toscana G. Monasterio, Council of National Research, Pisa, Italy.,Scuola Superiore Sant'Anna, Pisa, Italy
| | - Cristina Vassalle
- Fondazione Toscana G. Monasterio, Council of National Research, Pisa, Italy.,Scuola Superiore Sant'Anna, Pisa, Italy
| | - Silvia Masotti
- Fondazione Toscana G. Monasterio, Council of National Research, Pisa, Italy.,Scuola Superiore Sant'Anna, Pisa, Italy
| | - Francesco Romeo
- Department of Cardiology, Tor Vergata University, Rome, Italy
| | - Paolo Guccione
- Department of Pediatric Cardiology and Cardiac Surgery, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Sergio Bernardini
- University Sports Center, Tor Vergata University, Rome, Italy.,Department of Clinical Biochemistry and Clinical Molecular Biology, Tor Vergata University, Rome, Italy
| | - Aldo Clerico
- Fondazione Toscana G. Monasterio, Council of National Research, Pisa, Italy.,Scuola Superiore Sant'Anna, Pisa, Italy
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28
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Martínez-Navarro I, Sánchez-Gómez J, Sanmiguel D, Collado E, Hernando B, Panizo N, Hernando C. Immediate and 24-h post-marathon cardiac troponin T is associated with relative exercise intensity. Eur J Appl Physiol 2020; 120:1723-1731. [PMID: 32468283 DOI: 10.1007/s00421-020-04403-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/19/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE We aimed at exploring whether cardiopulmonary fitness, echocardiographic measures and relative exercise intensity were associated with high-sensitivity cardiac troponin T (hs-TNT) rise and normalization following a marathon. METHODS Nighty-eight participants (83 men, 15 women; 38.72 ± 3.63 years) were subjected to echocardiographic assessment and a cardiopulmonary exercise test (CPET) before the race. hs-TNT was measured before, immediately after and at 24, 48, 96, 144 and 192 h post-race. Speed and mean heart rate (HR) during the race were relativized to CPET values: peak speed (%VVMAX), peak HR (HR%MAX), speed and HR at the second ventilatory threshold (HR%VT2 and %VVT2). RESULTS Hs-TNT increased from pre- to post-race (5.74 ± 5.29 vs. 50.4 ± 57.04 ng/L; p < 0.001), seeing values above the Upper Reference Limit (URL) in 95% of the participants. At 24 h post-race, 39% of the runners still exceeded the URL (High hs-TNT group). hs-TNT rise was correlated with marathon speed %VVT2 (r = 0.22; p = 0.042), mean HR%VT2 (r = 0.30; p = 0.007), and mean HR%MAX (r = 0.32; p = 0.004). Moreover, the High hs-TNT group performed the marathon at a higher Speed %VVT2 (88.21 ± 6.53 vs. 83.49 ± 6.54%; p = 0.002) and Speed %VVMAX (72 ± 4.25 vs. 69.40 ± 5.53%; p = 0.009). hs-TNT showed no significant associations with cardiopulmonary fitness and echocardiographic measures, except for a slight correlation with left ventricular end systolic diameter (r = 0.26; p = 0.018). CONCLUSION Post-race hs-TNT was above the URL in barely all runners. Magnitude of hs-TNT rise was correlated with exercise mean HR; whereas, its normalization kept relationship with marathon relative speed.
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Affiliation(s)
- Ignacio Martínez-Navarro
- Physical Education and Sports Department, Faculty of Physical Activity and Sport Sciences, University of Valencia, C/Gascó Oliag 3, 46010, Valencia, Spain. .,Sports Health Unit, Vithas 9 de Octubre Hospital, Valencia, Spain.
| | - J Sánchez-Gómez
- Sports Health Unit, Vithas 9 de Octubre Hospital, Valencia, Spain.,Universitary Clinical Hospital of Valencia, Valencia, Spain
| | - D Sanmiguel
- Sports Health Unit, Vithas 9 de Octubre Hospital, Valencia, Spain.,General Hospital of Valencia, Valencia, Spain
| | - E Collado
- Faculty of Health Sciences, Jaume I University, Castellón de la Plana, Castellon, Spain
| | - B Hernando
- Department of Medicine, Jaume I University, Castellón de la Plana, Castellon, Spain
| | - N Panizo
- Faculty of Health Sciences, Jaume I University, Castellón de la Plana, Castellon, Spain.,Universitary Doctor Peset Hospital of Valencia, Valencia, Spain
| | - C Hernando
- Sport Service, Jaume I University, Castellón de la Plana, Castellon, Spain.,Department of Education and Specific Didactics, Jaume I University, Castellón de la Plana, Castellon, Spain
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29
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Affiliation(s)
- Torbjørn Omland
- Department of Cardiology, Akershus University Hospital, Oslo, Norway (T.O.).,Center for Heart Failure Research, Institute of Clinical Medicine, University of Oslo, Norway (T.O.)
| | - Kristin Moberg Aakre
- Hormone Laboratory, Haukeland University Hospital, Bergen, Norway (K.M.A.).,Department of Clinical Science, University of Bergen, Norway (K.M.A.)
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30
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Damen SAJ, Vroemen WHM, Brouwer MA, Mezger STP, Suryapranata H, van Royen N, Bekers O, Meex SJR, Wodzig WKWH, Verheugt FWA, de Boer D, Cramer GE, Mingels AMA. Multi-Site Coronary Vein Sampling Study on Cardiac Troponin T Degradation in Non-ST-Segment-Elevation Myocardial Infarction: Toward a More Specific Cardiac Troponin T Assay. J Am Heart Assoc 2019; 8:e012602. [PMID: 31269858 PMCID: PMC6662151 DOI: 10.1161/jaha.119.012602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/17/2019] [Indexed: 01/24/2023]
Abstract
Background Cardiac troponin T ( cTnT ) is seen in many other conditions besides myocardial infarction, and recent studies demonstrated distinct forms of cTnT . At present, the in vivo formation of these different cTnT forms is incompletely understood. We therefore performed a study on the composition of cTnT during the course of myocardial infarction, including coronary venous system sampling, close to its site of release. Methods and Results Baseline samples were obtained from multiple coronary venous system locations, and a peripheral artery and vein in 71 non- ST -segment-elevation myocardial infarction patients. Additionally, peripheral blood was drawn at 6- and 12-hours postcatheterization. cTnT concentrations were measured using the high-sensitivity- cTnT immunoassay. The cTnT composition was determined via gel filtration chromatography and Western blotting in an early and late presenting patient. High-sensitivity - cTnT concentrations were 28% higher in the coronary venous system than peripherally (n=71, P<0.001). Coronary venous system samples demonstrated cT n T-I-C complex, free intact cTnT , and 29 kD a and 15 to 18 kD a cTnT fragments, all in higher concentrations than in simultaneously obtained peripheral samples. While cT n T-I-C complex proportionally decreased, and disappeared over time, 15 to 18 kD a cTnT fragments increased. Moreover, cT n T-I-C complex was more prominent in the early than in the late presenting patient. Conclusions This explorative study in non- ST -segment-elevation myocardial infarction shows that cTnT is released from cardiomyocytes as a combination of cT n T-I-C complex, free intact cTnT , and multiple cTnT fragments indicating intracellular cTnT degradation. Over time, the cT n T-I-C complex disappeared because of in vivo degradation. These insights might serve as a stepping stone toward a high-sensitivity- cTnT immunoassay more specific for myocardial infarction.
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Affiliation(s)
- Sander A. J. Damen
- Department of CardiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Wim H. M. Vroemen
- Central Diagnostic LaboratoryMaastricht University Medical CenterMaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastricht UniversityMaastrichtThe Netherlands
| | - Marc A. Brouwer
- Department of CardiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Stephanie T. P. Mezger
- Central Diagnostic LaboratoryMaastricht University Medical CenterMaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastricht UniversityMaastrichtThe Netherlands
| | - Harry Suryapranata
- Department of CardiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Niels van Royen
- Department of CardiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Otto Bekers
- Central Diagnostic LaboratoryMaastricht University Medical CenterMaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastricht UniversityMaastrichtThe Netherlands
| | - Steven J. R. Meex
- Central Diagnostic LaboratoryMaastricht University Medical CenterMaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastricht UniversityMaastrichtThe Netherlands
| | - Will K. W. H. Wodzig
- Central Diagnostic LaboratoryMaastricht University Medical CenterMaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastricht UniversityMaastrichtThe Netherlands
| | - Freek W. A. Verheugt
- Department of CardiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Douwe de Boer
- Central Diagnostic LaboratoryMaastricht University Medical CenterMaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastricht UniversityMaastrichtThe Netherlands
| | - G. Etienne Cramer
- Department of CardiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Alma M. A. Mingels
- Central Diagnostic LaboratoryMaastricht University Medical CenterMaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastricht UniversityMaastrichtThe Netherlands
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31
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Gaze DC. Cardiac Troponin in Endurance Exercise-Fragments of the Imagination or Clinical Significance? J Appl Lab Med 2018; 3:760-763. [PMID: 31639751 DOI: 10.1373/jalm.2018.027870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 10/15/2018] [Indexed: 11/06/2022]
Affiliation(s)
- David C Gaze
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, UK.
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