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Tsuda T, Robinson BW. Beneficial Effects of Exercise on Hypertension-Induced Cardiac Hypertrophy in Adolescents and Young Adults. Curr Hypertens Rep 2024; 26:451-462. [PMID: 38888690 DOI: 10.1007/s11906-024-01313-4] [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] [Accepted: 05/30/2024] [Indexed: 06/20/2024]
Abstract
PURPOSE OF REVIEW Hypertension-induced cardiac hypertrophy is widely known as a major risk factor for increased cardiovascular morbidity and mortality. Although exercise is proven to exert overall beneficial effects on hypertension and hypertension-induced cardiac hypertrophy, there are some concerns among providers about potential adverse effects induced by intense exercise, especially in hypertensive athletes. We will overview the underlying mechanisms of physiological and pathological hypertrophy and delineate the beneficial effects of exercise in young people with hypertension and consequent hypertrophy. RECENT FINDINGS Multiple studies have demonstrated that exercise training, both endurance and resistance types, reduces blood pressure and ameliorates hypertrophy in hypertensives, but certain precautions are required for hypertensive athletes when allowing competitive sports: Elevated blood pressure should be controlled before allowing them to participate in high-intensity exercise. Non-vigorous and recreational exercise are always recommended to promote cardiovascular health. Exercise-induced cardiac adaptation is a benign and favorable response that reverses or attenuates pathological cardiovascular remodeling induced by persistent hypertension. Exercise is the most effective nonpharmacological treatment for hypertensive individuals. Distinction between recreational-level exercise and competitive sports should be recognized by medical providers when allowing sports participation for adolescents and young adults.
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Affiliation(s)
- Takeshi Tsuda
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA.
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadephia, PA, 19107, USA.
| | - Bradley W Robinson
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadephia, PA, 19107, USA
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Baba Ali N, Attaripour Esfahani S, Scalia IG, Farina JM, Pereyra M, Barry T, Lester SJ, Alsidawi S, Steidley DE, Ayoub C, Palermi S, Arsanjani R. The Role of Cardiovascular Imaging in the Diagnosis of Athlete's Heart: Navigating the Shades of Grey. J Imaging 2024; 10:230. [PMID: 39330450 PMCID: PMC11433181 DOI: 10.3390/jimaging10090230] [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: 07/02/2024] [Revised: 08/12/2024] [Accepted: 09/06/2024] [Indexed: 09/28/2024] Open
Abstract
Athlete's heart (AH) represents the heart's remarkable ability to adapt structurally and functionally to prolonged and intensive athletic training. Characterized by increased left ventricular (LV) wall thickness, enlarged cardiac chambers, and augmented cardiac mass, AH typically maintains or enhances systolic and diastolic functions. Despite the positive health implications, these adaptations can obscure the difference between benign physiological changes and early manifestations of cardiac pathologies such as dilated cardiomyopathy (DCM), hypertrophic cardiomyopathy (HCM), and arrhythmogenic cardiomyopathy (ACM). This article reviews the imaging characteristics of AH across various modalities, emphasizing echocardiography, cardiac magnetic resonance (CMR), and cardiac computed tomography as primary tools for evaluating cardiac function and distinguishing physiological adaptations from pathological conditions. The findings highlight the need for precise diagnostic criteria and advanced imaging techniques to ensure accurate differentiation, preventing misdiagnosis and its associated risks, such as sudden cardiac death (SCD). Understanding these adaptations and employing the appropriate imaging methods are crucial for athletes' effective management and health optimization.
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Affiliation(s)
- Nima Baba Ali
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | | | - Isabel G. Scalia
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Juan M. Farina
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Milagros Pereyra
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Timothy Barry
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Steven J. Lester
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Said Alsidawi
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - David E. Steidley
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Chadi Ayoub
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Stefano Palermi
- Public Health Department, University of Naples Federico II, via Pansini 5, 80131 Naples, Italy;
| | - Reza Arsanjani
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
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Ramos GV, Santos MM, Gava FN, de Lacerda-Neto JC. Effects of conditioning on the left ventricular function of young purebred Arabian horses. PLoS One 2024; 19:e0304724. [PMID: 38829873 PMCID: PMC11146711 DOI: 10.1371/journal.pone.0304724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 05/17/2024] [Indexed: 06/05/2024] Open
Abstract
The effects of conditioning on cardiac function in young horses is still unknown. For this reason, this study evaluated the left ventricular (LV) function of young horses by echocardiography after six weeks of conditioning. Fourteen untrained young purebred Arabian horses were evaluated at rest and after a stress test (ST) before and after a six-week conditioning program. There was an increase in V4 (p < 0.001) after conditioning, as well as a reduction in both heart rate (HR) at rest and peak HR during the ST (p < 0.001). There was also a reduction in internal diameter, along with an increase in interventricular septal, free wall and mean thicknesses and LV mass (p < 0.05). After the ST, the conditioned animals showed higher values of velocity time integral, stroke volume, systolic and cardiac indices, ejection (ET) and deceleration times (DT), end-diastolic volume, time to onset of radial myocardial velocity during early diastole and time to peak of transmitral flow velocity, in addition to reduced pre-ejection period (PEP), PEP/ET ratio and mean velocity of circumferential fiber shortening (p < 0.05). The conditioning protocol promoted physiological adaptations that indicate an improvement in the animals' aerobic capacity associated with an enhanced left ventricular function.
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Affiliation(s)
- Gabriel Vieira Ramos
- Department of Veterinary Clinics and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
| | - Maíra Moreira Santos
- Department of Veterinary Clinics and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
| | - Fábio Nelson Gava
- Department of Veterinary Clinics, State University of Londrina, Londrina, Paraná, Brazil
| | - José Corrêa de Lacerda-Neto
- Department of Veterinary Clinics and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
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Di Gioia G, Crispino SP, Monosilio S, Maestrini V, Nenna A, Spinelli A, Lemme E, Squeo MR, Pelliccia A. Left Ventricular Trabeculation: Arrhythmogenic and Clinical Significance in Elite Athletes. J Am Soc Echocardiogr 2024; 37:577-586. [PMID: 38492683 DOI: 10.1016/j.echo.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/18/2024]
Abstract
INTRODUCTION Left ventricular (LV) trabeculations (LVTs) are common findings in athletes. Limited information exists regarding clinical significance, management, and outcome. OBJECTIVES The purpose of this study is to examine the prevalence and morphologic characteristics of LVTs in elite athletes, with a focus on clinical correlates and prognostic significance. METHODS We enrolled 1,492 Olympic elite athletes of different sports disciplines with electrocardiogram, echocardiogram, and exercise stress test. Individuals with a definite diagnosis of LV noncompaction (LVNC) were excluded; we focused on athletes with LVTs not meeting the criteria for LVNC. RESULTS Four hundred thirty-five (29.1%) athletes presented with LVTs, which were more frequent in male athletes (62.1% vs 53.5%, P = .002) and Black athletes compared with Caucasian (7.1% vs 2.4%, P < .0001) and endurance athletes (P = .0005). No differences were found with relation to either the site or extent of trabeculations. Endurance athletes showed a higher proportion of LVTs and larger LV volumes (end-diastolic and end-systolic, respectively, 91.5 ± 19.8 mL vs 79.3 ± 29.9 mL, P = .002; and 33.1 ± 10 mL vs 28.6 ± 11.7 mL, P = .007) and diastolic pattern with higher E wave (P = .01) and e' septal velocities (P = .02). Ventricular arrhythmias were found in 14% of LVTs versus 11.6% of athletes without LVTs (P = .22). Neither the location nor the LVTs' extension were correlated to ventricular arrhythmias. At 52 ± 32 months of follow-up, no differences in arrhythmic burden were observed (11.1% in LVT athletes vs 10.2%, P = .51). CONCLUSIONS Left ventricular trabeculations are quite common in athletes, mostly male, Black, and endurance, likely as the expression of adaptive remodeling. In the absence of associated clinical abnormalities, such as LV systolic and diastolic impairment, electrocardiogram repolarization abnormalities, or family evidence of cardiomyopathy, athletes with LVTs have benign clinical significance and should not require further investigation.
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Affiliation(s)
- Giuseppe Di Gioia
- Institute of Sports Medicine and Science, National Italian Olympic Committee, Rome, Italy; Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy; Department of Movement, Human and Health Sciences, University of Rome "Foro Italico," Rome, Italy.
| | - Simone Pasquale Crispino
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Sara Monosilio
- Institute of Sports Medicine and Science, National Italian Olympic Committee, Rome, Italy; Department of Clinical, Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Viviana Maestrini
- Institute of Sports Medicine and Science, National Italian Olympic Committee, Rome, Italy; Department of Clinical, Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Antonio Nenna
- Department of Heart Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Alessandro Spinelli
- Institute of Sports Medicine and Science, National Italian Olympic Committee, Rome, Italy
| | - Erika Lemme
- Institute of Sports Medicine and Science, National Italian Olympic Committee, Rome, Italy
| | - Maria Rosaria Squeo
- Institute of Sports Medicine and Science, National Italian Olympic Committee, Rome, Italy
| | - Antonio Pelliccia
- Institute of Sports Medicine and Science, National Italian Olympic Committee, Rome, Italy
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Strom J, Bull M, Gohlke J, Saripalli C, Methawasin M, Gotthardt M, Granzier H. Titin's cardiac-specific N2B element is critical to mechanotransduction during volume overload of the heart. J Mol Cell Cardiol 2024; 191:40-49. [PMID: 38604403 PMCID: PMC11229416 DOI: 10.1016/j.yjmcc.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 03/09/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
The heart has the ability to detect and respond to changes in mechanical load through a process called mechanotransduction. In this study, we focused on investigating the role of the cardiac-specific N2B element within the spring region of titin, which has been proposed to function as a mechanosensor. To assess its significance, we conducted experiments using N2B knockout (KO) mice and wildtype (WT) mice, subjecting them to three different conditions: 1) cardiac pressure overload induced by transverse aortic constriction (TAC), 2) volume overload caused by aortocaval fistula (ACF), and 3) exercise-induced hypertrophy through swimming. Under conditions of pressure overload (TAC), both genotypes exhibited similar hypertrophic responses. In contrast, WT mice displayed robust left ventricular hypertrophy after one week of volume overload (ACF), while the KO mice failed to undergo hypertrophy and experienced a high mortality rate. Similarly, swim exercise-induced hypertrophy was significantly reduced in the KO mice. RNA-Seq analysis revealed an abnormal β-adrenergic response to volume overload in the KO mice, as well as a diminished response to isoproterenol-induced hypertrophy. Because it is known that the N2B element interacts with the four-and-a-half LIM domains 1 and 2 (FHL1 and FHL2) proteins, both of which have been associated with mechanotransduction, we evaluated these proteins. Interestingly, while volume-overload resulted in FHL1 protein expression levels that were comparable between KO and WT mice, FHL2 protein levels were reduced by over 90% in the KO mice compared to WT. This suggests that in response to volume overload, FHL2 might act as a signaling mediator between the N2B element and downstream signaling pathways. Overall, our study highlights the importance of the N2B element in mechanosensing during volume overload, both in physiological and pathological settings.
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Affiliation(s)
- Joshua Strom
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, United States of America; Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ 85721, United States of America
| | - Mathew Bull
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, United States of America; Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ 85721, United States of America
| | - Jochen Gohlke
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, United States of America; Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ 85721, United States of America
| | - Chandra Saripalli
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, United States of America; Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ 85721, United States of America
| | - Mei Methawasin
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, United States of America; Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ 85721, United States of America
| | - Michael Gotthardt
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany; Department of Cardiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Henk Granzier
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, United States of America.
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Rossi C, Roklicer R, Drid P, Milovancev A, Trivic T, Scardina A, Carraro A, Bianco A. Left Ventricular Hypertrophy in Male and Female Judo Athletes. Int J Sports Med 2024; 45:377-381. [PMID: 38401535 PMCID: PMC11065483 DOI: 10.1055/a-2252-1239] [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: 06/26/2023] [Accepted: 11/13/2023] [Indexed: 02/26/2024]
Abstract
Changes in cardiac geometry develop after intense and prolonged training. Left ventricular enlargement, increased relative wall thickness, and growing mass of the left ventricle occur after strenuous exercise. Combat sports such as judo can lead to left ventricular hypertrophy. Previous studies have found that there are differences in left ventricular chamber size and thickness between the sexes, with female athletes having smaller wall diameters and less hypertrophy than male athletes. The research aims to examine heart muscle adaptations and remodeling of cardiac geometry among elite judo athletes and to evaluate differences between males and females. A cross-sectional study included a group of 19 (males n=10, females n=9) professional judokas between 20 and 30 years. Demographic and anthropometric data were collected. Cardiac geometry was determined by two-dimensional transthoracic echocardiography. In terms of left ventricular mass and the left ventricular mass index significant differences were found between male and female judokas (233.44±68.75 g vs. 164.11±16.59 g, p=0.009), (105.16±24.89 vs. 84.66±15.06, p=0.044), respectively. A greater enlargement of the heart muscle is observed in male athletes compared to the female group. Left ventricle enlargement is likely to occur among elite-level judokas.
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Affiliation(s)
- Carlo Rossi
- Department of Psychology, Educational Science and Human Movement,
University of Palermo, Palermo, Italy
- Research and Innovation, Centro Medico di Fisioterapia “Villa Sarina”,
91011 Alcamo, Trapani, Italy
| | - Roberto Roklicer
- Faculty of Sport and Physical Education, University of Novi Sad, Novi
Sad, Serbia
- Faculty of Education, Free University of Bozen–Bolzano, 39042
Brixen–Bressanone, Italy, Free University of Bozen-Bolzano, Bolzano,
Italy
| | - Patrik Drid
- Faculty of Sport and Physical Education, University of Novi Sad, Novi
Sad, Serbia
| | - Aleksandra Milovancev
- Internal medicine, cardiology, University of Novi Sad Medical Faculty,
Novi Sad, Serbia
- Cardiology, Institute of Cardiovascular Diseases of Vojvodina, Sremska
Kamenica, Serbia
| | - Tatjana Trivic
- Faculty of Sport and Physical Education, University of Novi Sad, Novi
Sad, Serbia
| | - Antonino Scardina
- Department of Psychology, Educational Science and Human Movement,
University of Palermo, Palermo, Italy
| | - Attilio Carraro
- Faculty of Education, Free University of Bozen–Bolzano, 39042
Brixen–Bressanone, Italy, Free University of Bozen-Bolzano, Bolzano,
Italy
| | - Antonino Bianco
- Department of Psychology, Educational Science and Human Movement,
University of Palermo, Palermo, Italy
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Scheffers LE, Helbing WA, Pereira T, Utens EMWJ, Dulfer K, Hirsch A, Koopman LP, van den Berg LE. Leg-focused high-weight resistance training improves ventricular stroke volume, exercise capacity and strength in young patients with a Fontan circulation. Eur J Prev Cardiol 2024; 31:389-399. [PMID: 37668334 DOI: 10.1093/eurjpc/zwad286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/21/2023] [Accepted: 08/29/2023] [Indexed: 09/06/2023]
Abstract
AIMS Effective therapy to improve exercise capacity in Fontan patients is lacking. Leg-focused high-weight resistance training might augment the peripheral muscle pump and thereby improve exercise capacity. METHODS AND RESULTS This randomized semi-cross-over controlled trial investigated the effects of a 12-week leg-focused high-weight resistance training plus high-protein diet, on (sub)maximal exercise capacity, cardiac function (assessed with cardiovascular magnetic resonance), muscle strength, and quality of life in paediatric Fontan patients. Twenty-eight paediatric Fontan patients were included, 27 patients, (median age 12.9 [10.5-15.7]), and successfully completed the programme. Peak oxygen uptake (PeakVO2) at baseline was reduced [33.3 mL/kg/min (27.1-37.4), 73% (62-79) of predicted]. After training PeakVO2/kg and Peak workload improved significantly with +6.2 mL/kg/min (95%CI: 3.4-9.0) (+18%) P < 0.001 and +22 Watts (95%CI: 12-32) (+18%) P < 0.001, respectively, compared to the control period. Indexed single ventricle stroke volume increased significantly [43 mL/beat/m2 (40-49) vs. 46 (41-53), P = 0.014], as did inferior vena cava flow [21 mL/beat/m2 (18-24) vs. 23 (20-28), P = 0.015], while superior vena cava flow remained unchanged. The strength of all measured leg-muscles increased significantly compared to the control period. Self-reported quality of life improved on the physical functioning and change in health domains of the child health questionnaire, parent-reported quality of life improved the bodily pain, general health perception, and change in health domains compared to the control period. CONCLUSION In a relatively large group of 27 older Fontan children, 12-weeks of leg-focused high-weight resistance training improved exercise capacity, stroke volume, (sub)maximal exercise capacity, muscle strength, and domains of quality of life. REGISTRATION International Clinical Trials: Trial NL8181.
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Affiliation(s)
- Linda E Scheffers
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus MC-Sophia Children's Hospital, Doctor Molewaterplein 40, 3015 GD, Rotterdam, Netherlands
- Department of Pediatric Gastroenterology, Division of Pediatric Cardiology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
- Respiratory Medicine and Allergology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
- Department of Pediatrics, Center for Lysosomal and Metabolic Diseases, Erasmus MC, Rotterdam, Netherlands
| | - Willem A Helbing
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus MC-Sophia Children's Hospital, Doctor Molewaterplein 40, 3015 GD, Rotterdam, Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus MC-Sophia Children's Hospital, Doctor Molewaterplein 40, 3015 GD, Rotterdam, the Netherlands
| | - Thomas Pereira
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus MC-Sophia Children's Hospital, Doctor Molewaterplein 40, 3015 GD, Rotterdam, Netherlands
| | - Elisabeth M W J Utens
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
- Research Institute of Child Development and Education, University of Amsterdam, Amsterdam, Netherlands
- Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center/Level, Amsterdam, Netherlands
| | - Karolijn Dulfer
- Intensive Care Unit, Department of Pediatrics and Pediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Alexander Hirsch
- Department of Radiology and Nuclear Medicine, Erasmus MC-Sophia Children's Hospital, Doctor Molewaterplein 40, 3015 GD, Rotterdam, the Netherlands
- Department of Cardiology, Erasmus MC, Rotterdam, The Netherlands
| | - Laurens P Koopman
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus MC-Sophia Children's Hospital, Doctor Molewaterplein 40, 3015 GD, Rotterdam, Netherlands
| | - Linda E van den Berg
- Department of Orthopedics and Sports medicine, Erasmus MC, Rotterdam, Netherlands
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Cirovic S, Malmgren A, Kurdie R, Bilal D, Dencker M, Gudmundsson P. Vortex formation time in female athletes. Int J Cardiovasc Imaging 2024; 40:373-384. [PMID: 38008878 PMCID: PMC10884071 DOI: 10.1007/s10554-023-02995-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 10/25/2023] [Indexed: 11/28/2023]
Abstract
Regular, vigorous physical activity can have a significant impact on cardiac function, leading to cardiac morphological alterations that may be challenging to distinguish from pathological changes. Therefore, new screening methods are needed to accurately differentiate between adaptive changes and pathological alterations in athletes. Vortex formation time (VFT) is an emerging method that shows potential in this regard, as it involves the formation of a rotating vortex ring in the left ventricle during the early filling phase of diastole. In this study, we investigated the difference in VFT between two groups of women: professional handball players and healthy middle-aged female athletes, along with their corresponding control groups. By using echocardiography-Doppler analysis of the heart, VFT was calculated based on the left ventricular ejection fraction, the ratio between the end-diastolic volume and the diameter of the mitral annulus, and the ratio of the atrial contraction volume to the total inflow via the mitral valve. The study reveals a significant increase in VFT in both professional handball players and middle-aged female athletes compared to their respective control groups. Moreover, statistically significant differences between handball players and middle-aged female athletes were observed, indicating that the level of physical activity may affect the VFT. These results suggest that VFT could be a promising screening tool for identifying cardiac adaptations due to long-term vigorous training, potentially enabling more accurate diagnoses of cardiac morphological alterations in athletes.
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Affiliation(s)
- Stefan Cirovic
- Biomedical Sciences, Faculty of Health and Society, Malmö University, Malmö, 205 06, Sweden.
| | - Andreas Malmgren
- Clinical Physiology and Nuclear Medicine, Skåne University Hospital, Malmö, 205 06, Sweden
| | - Rayane Kurdie
- Clinical Physiology and Nuclear Medicine, Skåne University Hospital, Malmö, 205 06, Sweden
| | - Dejan Bilal
- Clinical Physiology and Nuclear Medicine, Skåne University Hospital, Malmö, 205 06, Sweden
| | - Magnus Dencker
- Clinical Physiology and Nuclear Medicine, Skåne University Hospital, Malmö, 205 06, Sweden
| | - Petri Gudmundsson
- Biomedical Sciences, Faculty of Health and Society, Malmö University, Malmö, 205 06, Sweden
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9
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Orgil BO, Purevjav E. Molecular Pathways and Animal Models of Cardiomyopathies. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1441:991-1019. [PMID: 38884766 DOI: 10.1007/978-3-031-44087-8_64] [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: 06/18/2024]
Abstract
Cardiomyopathies are a heterogeneous group of disorders of the heart muscle that ultimately result in congestive heart failure. Rapid progress in genetics, molecular and cellular biology with breakthrough innovative genetic-engineering techniques, such as next-generation sequencing and multiomics platforms, stem cell reprogramming, as well as novel groundbreaking gene-editing systems over the past 25 years has greatly improved the understanding of pathogenic signaling pathways in inherited cardiomyopathies. This chapter will focus on intracellular and intercellular molecular signaling pathways that are activated by a genetic insult in cardiomyocytes to maintain tissue and organ level regulation and resultant cardiac remodeling in certain forms of cardiomyopathies. In addition, animal models of different clinical forms of human cardiomyopathies with their summaries of triggered key molecules and signaling pathways will be described.
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Affiliation(s)
- Buyan-Ochir Orgil
- Department of Pediatrics, The Heart Institute, Division of Cardiology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Enkhsaikhan Purevjav
- Department of Pediatrics, The Heart Institute, Division of Cardiology, University of Tennessee Health Science Center, Memphis, TN, USA.
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10
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Liang B, Zhang XX, Gu N. Guanxin V Relieves Ventricular Remodeling by Inhibiting Inflammation: Implication from Virtual Screening, Systematic Pharmacology, Molecular Docking, and Experimental Validation. Chin J Integr Med 2023; 29:1077-1086. [PMID: 37528325 DOI: 10.1007/s11655-023-3642-z] [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] [Accepted: 05/05/2023] [Indexed: 08/03/2023]
Abstract
OBJECTIVE To reveal the anti-inflammatory mechanism of Guanxin V, which is prescribed for ventricular remodeling in clinical practice. METHODS Guanxin V-, ventricular remodeling-, and inflammation-related targets were obtained through an integrated strategy of virtual screening and systematic pharmacology, and then the shared targets were visualised with a Venn diagram. Guanxin V network and the protein-protein interaction network were drawn, and enrichment analysis was conducted. Finally, the main results obtained from the integrated strategy were validated by molecular docking and in vivo experiments. RESULTS A total of 251, 11,425, and 15,246 Guanxin V-, ventricular remodeling-, and inflammation-related targets were acquired, respectively. Then, 211 shared targets were considered to contribute to the mechanism of ventricular remodeling treated by Guanxin V. Guanxin network and the protein-protein interaction network were drawn, and enrichment analysis showed some cardiovascular-related biological processes and signaling pathways. Molecular docking revealed that the Guanxin V-derived compounds could align with key targets. Final in vivo experiments proved that Guanxin V reverses ventricular remodeling by inhibiting inflammation. CONCLUSION Guanxin V relieves ventricular remodeling by regulating inflammation, which provides new ideas for the anti-ventricular remodeling mechanism of Guanxin V.
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Affiliation(s)
- Bo Liang
- Department of Cardiology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, 400037, China
| | - Xiao-Xiao Zhang
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210046, China
| | - Ning Gu
- Department of Cardiology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China.
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Jafarikhah R, Damirchi A, Rahmani Nia F, Razavi-Toosi SMT, Shafaghi A, Asadian M. Effect of functional resistance training on the structure and function of the heart and liver in patients with non-alcoholic fatty liver. Sci Rep 2023; 13:15475. [PMID: 37726373 PMCID: PMC10509216 DOI: 10.1038/s41598-023-42687-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/13/2023] [Indexed: 09/21/2023] Open
Abstract
The current study is of the quasi-experimental type, with a pre-and post-test design, and subjects were randomly assigned to one of two groups: control (n = 8) and experimental (test) (n = 8). Based on the patient's self-report and using daily diet control tables, the patient's diet planning percentage of energy supply was managed and controlled for 3 days. The protocol for functional resistance training for these circular exercises, including the squat, lunge, bear crawl, rock press, jumping jack, and back fly lunge, was performed three times per week without specialized apparatus. Ejection fraction (EF) and fractional shortening (FS) were measured before and after functional resistance training, using echocardiography. Liver Stiffness and steatosis were measured using FibroScan, and the liver function was determined using biochemical assays. The average age of patients in the control group and the test group were 46.02 ± 5.4 and 48.6 ± 2.51, respectively. Pre-test and post-test of the body mass index were 32.06 ± 5.06 and 30.02 ± 3.97, and for the body fat percentage were 33.65 ± 6.09 and 25.41 ± 4.99. In non-alcoholic fatty liver patients, due to functional resistance training, EF (p-value = 0.003) and FS (p-value = 0.03) significantly increased, and C-reactive protein (Hs-CRP) (p-value = 0.001), steatosis (p-value = 0.04), and stiffness (p-value = 0.01) decreased. According to the results and without considering clinical trials, functional resistance training affects the structure and function of the heart and Liver in NAFLD patients.
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Affiliation(s)
- Ramin Jafarikhah
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
| | - Arsalan Damirchi
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran.
| | - Farhad Rahmani Nia
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
| | - Seyyed Mohammad Taghi Razavi-Toosi
- Medical Biotechnology Research Center, School of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
- Department of Cardiology, Heshmat Hospital, Cardiovascular Diseases Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Afshin Shafaghi
- GI Cancer Screening and Preventing Research Center (GCSPRC), Guilan University of Medical Sciences, Rasht, Iran
| | - Mostafa Asadian
- Cardiovascular department, Razi Medical Education Center, Guilan University of Medical Sciences, Rasht, Iran
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12
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Rafique M, Solberg OG, Gullestad L, Bendz B, Murbræch K, Nytrøen K, Rolid K, Lunde K. Effects of high-intensity interval training on cardiac remodelling, function and coronary microcirculation in de novo heart transplant patients: a substudy of the HITTS randomised controlled trial. BMJ Open Sport Exerc Med 2023; 9:e001331. [PMID: 37440977 PMCID: PMC10335410 DOI: 10.1136/bmjsem-2022-001331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2023] [Indexed: 07/15/2023] Open
Abstract
Objectives High-intensity interval training (HIT) improves peak oxygen consumption (VO2peak) in de novo heart transplant (HTx) recipients. It remains unclear whether this improvement early after HTx is solely dependent on peripheral adaptations, or due to a linked chain of central and peripheral adaptations. The objective of this study was to determine whether HIT results in structural and functional adaptations in the cardiovascular system. Methods Eighty-one de novo HTx recipients were randomly assigned to participate in either 9 months of supervised HIT or standard care exercise-based rehabilitation. Cardiac function was assessed by echocardiogram and the coronary microcirculation with the index of microcirculatory resistance (IMR) at baseline and 12 months after HTx. Results Cardiac function as assessed by global longitudinal strain was significantly better in the HIT group than in the standard care group (16.3±1.2% vs 15.6±2.2%, respectively, treatment effect = -1.1% (95% CI -2.0% to -0.2%), p=0.02), as was the end-diastolic volume (128.5±20.8 mL vs 123.4±15.5 mL, respectively, treatment effect=4.9 mL (95% CI 0.5 to 9.2 mL), p=0.03). There was a non-significant tendency for IMR to indicate improved microcirculatory function (13.8±8.0 vs 16.8±12.0, respectively, treatment effect = -4.3 (95% CI -9.1 to 0.6), p=0.08). Conclusion When initiated early after HTx, HIT leads to both structural and functional cardiovascular adaptations. Trial registration number NCT01796379.
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Affiliation(s)
- Muzammil Rafique
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ole Geir Solberg
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Bjørn Bendz
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Klaus Murbræch
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Kari Nytrøen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Katrine Rolid
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ketil Lunde
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
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13
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Choobineh S, Borjian Fard M, Soori R, Mazaheri Z. Telocytes response to cardiac growth induced by resistance exercise training and endurance exercise training in adult male rats. J Physiol Sci 2023; 73:12. [PMID: 37301825 DOI: 10.1186/s12576-023-00868-2] [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: 10/20/2022] [Accepted: 04/18/2023] [Indexed: 06/12/2023]
Abstract
Telocytes are interstitial cells found in different tissues, including cardiac stem cell niches. The purpose of this study was to investigate the response of the telocytes to the cardiac growth that occurs in response to resistance and endurance exercise trainings using rats distributed into control, endurance, and resistance training groups. Results revealed that the ratio of heart weight to body weight, cardiomycyte number, cardiomyocyte area, thickness of the left ventricular wall were significantly higher in the training groups compared to the control group. We observed increment in the cardiomyocytes surface area and thickness of the left ventricular wall in the resistance-training group than endurance-training group. We conclude that both resistance and endurance exercise trainings will lead to an increased number of cardiac telocytes, consequently, promote activity of the cardiac stem cells, and results in physiological cardiac growth, and this response does not seem to depend on the type of exercise.
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Affiliation(s)
- Siroos Choobineh
- Department of Exercise Physiology, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran
| | - Mahboobeh Borjian Fard
- Department of Exercise Physiology, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran.
| | - Rahman Soori
- Department of Exercise Physiology, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran
| | - Zohreh Mazaheri
- Basic Medical Science Research Center, Histogenotech Company, Tehran, Iran
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14
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McColgan G, Villarroel M, Gehmlich K. Should young athletes be screened for cardiomyopathies to reduce the burden of sudden cardiac death in athletes? Biophys Rev 2023; 15:321-327. [PMID: 37396442 PMCID: PMC10310562 DOI: 10.1007/s12551-023-01085-2] [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: 05/09/2023] [Accepted: 05/21/2023] [Indexed: 07/04/2023] Open
Abstract
In this correspondence, we highlight the risk of sudden cardiac death associated with undiagnosed cardiomyopathies. Life-threatening arrhythmias, which underlie sudden cardiac death, can be triggered by high-intensity exercise. It raises the question whether, and if so, how athletes should be screened for cardiomyopathies. The example of practice from Italy is discussed. We also briefly discuss novel developments, such as wearable biosensors and machine learning, which could be applied to screening for cardiomyopathies in future.
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Affiliation(s)
- Grace McColgan
- College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - Mauricio Villarroel
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ UK
| | - Katja Gehmlich
- Institute of Cardiovascular Science, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, and British Heart Foundation Centre of Research Excellence Oxford, University of Oxford, Oxford, OX3 9DU UK
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15
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Saunders AM, Jones RL, Richards J. Cardiac structure and function in resistance-trained and untrained adults: A systematic review and meta-analysis. J Sports Sci 2022; 40:2191-2199. [PMID: 36399498 DOI: 10.1080/02640414.2022.2147658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Variations in the haemodynamic demands of specific training modalities may explain characteristic differences in cardiac structure and function amongst athletes. However, current consensus regarding these adaptations in highly resistance-trained athletes is yet to be established. The current invetsigation aimed to collate research investigating cardiac structure and function in resistance-trained athletes, exploring the defining characteristics of Athlete's Heart within these individuals. Seven electronic databases were searched. Studies which examined at least one measure of cardiac structure or function, included healthy, normotensive male or females (>18 years) and compared athletes engaged in a resistance training programme (>12 months) to an untrained group engaged in no structured training programme were included. Systematic selection and quality appraisal of articles was performed by two reviewers, with a random effects meta-analysis model applied to suitable studies. Studies were limited to orginal peer-reviewed articles published in English. Resistance-trained athletes (n = 949) demonstrated greater cardiac dimensions compared to their untrained counterparts (n = 1053). No clear impairments to systolic or diastolic cardiac function were observed in athletic population studied here. Resistance-trained athletes display some characteristics of the Athlete's Heart phenomenon, including greater wall thickening and chamber dilation compared to their untrained counterparts.
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Affiliation(s)
- Abigail M Saunders
- Institute for Sport and Physical Activity Research, School of Sport Science and Physical Activity, University of Bedfordshire, Bedford, UK
| | - Rebecca L Jones
- Institute for Sport and Physical Activity Research, School of Sport Science and Physical Activity, University of Bedfordshire, Bedford, UK.,Health Advancement Research Team (HART), School of Sport and Exercise Science, University of Lincoln, Lincoln, UK
| | - Joanna Richards
- Institute for Sport and Physical Activity Research, School of Sport Science and Physical Activity, University of Bedfordshire, Bedford, UK
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16
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Coates AM, Cheung CP, Currie KD, King TJ, Mountjoy ML, Burr JF. Cardiac Remodeling in Elite Aquatic Sport Athletes. Clin J Sport Med 2022; 32:e485-e491. [PMID: 36083335 DOI: 10.1097/jsm.0000000000001024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 02/02/2022] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To characterize and compare the sport-specific cardiac structure of elite swimmers (SW), water polo players (WP), and artistic swimmers (AS). DESIGN A cross-sectional assessment of elite aquatic athletes' hearts. SETTING The athletes' village at the 2019 FINA World Championships. PARTICIPANTS Ninety athletes from swimming (SW) (20 M/17 F), water polo (WP) (21 M/9 F), and artistic swimming (AS) (23 F). ASSESSMENT AND MAIN OUTCOME MEASURES An echocardiographic assessment of cardiac structure was performed on noncompetition days. RESULTS Male SW displayed primarily eccentric volume-driven remodeling, whereas male WP had a greater incidence of pressure-driven concentric geometry (SW = 5%, WP = 25%) with elevated relative wall-thickness (RWT) (SW = 0.35 ± 0.04, WP = 0.44 ± 0.08, P < 0.001). Female SW and WP hearts were similar with primarily eccentric-remodeling, but SW and WP had greater concentricity index than artistic swimmers (SW = 6.74 ± 1.45 g/(mL)2/3, WP = 6.80 ± 1.24 g/(mL)2/3, AS = 5.52 ± 1.08 g/(mL)2/3, P = 0.007). AS had normal geometry, but with increased posterior-wall specific RWT (SW = 0.32 ± 0.05, AS = 0.42 ± 0.11, P = 0.004) and greater left atrial area than SW (SW = 9.7 ± 0.9 cm2/m2, AS = 11.0 ± 1.1 cm2/m2, P = 0.003). All females had greater incidence of left ventricular (LV) posterior/septal wall-thickness ≥11 mm than typically reported (SW = 24%, WP = 11%, AS = 17%). CONCLUSIONS Male athletes presented classic sport-specific differentiation, with SW demonstrating primarily volume-driven eccentric remodelling, and WP with greater concentric geometry indicative of pressure-driven remodeling. Female SW and WP did not display this divergence, likely because of sex-differences in adaptation. AS had unique LV-specific adaptations suggesting elevated pressure under low-volume conditions. The overall incidence of elevated wall-thickness in female athletes may point to an aquatic specific pressure-stress.
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Affiliation(s)
- Alexandra M Coates
- Department of Human Health and Nutritional Sciences, the Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
| | - Christian P Cheung
- Department of Human Health and Nutritional Sciences, the Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
| | - Katharine D Currie
- Department of Kinesiology, Exercise and Cardiovascular Health Outcomes Laboratory, Michigan State University, East Lansing, Michigan; and
| | - Trevor J King
- Department of Human Health and Nutritional Sciences, the Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
| | | | - Jamie F Burr
- Department of Human Health and Nutritional Sciences, the Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
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17
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Ma D, Mandour AS, Elfadadny A, Hendawy H, Yoshida T, El-Husseiny HM, Nishifuji K, Takahashi K, Zhou Z, Zhao Y, Tanaka R. Changes in Cardiac Function During the Development of Uremic Cardiomyopathy and the Effect of Salvianolic Acid B Administration in a Rat Model. Front Vet Sci 2022; 9:905759. [PMID: 35782566 PMCID: PMC9244798 DOI: 10.3389/fvets.2022.905759] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 05/09/2022] [Indexed: 01/06/2023] Open
Abstract
Background Uremic cardiomyopathy (UC), the main cause of death in progressive chronic kidney disease (CKD), is characterized by diastolic dysfunction. Intraventricular pressure gradients (IVPG) derived from color m-mode echocardiography (CMME) and two-dimensional speckle tracking echocardiography (2DSTE) were established as novel echocardiographic approaches for non-invasive and repeatable assessment of cardiac function. Previously, salvianolic acid B (Sal B) showed the potential to alleviate concentric LV hypertrophy in the pressure overload model. The purpose of this study was to evaluate the changes in cardiac function in UC and assess the efficacy of Sal B therapy using IVPG and 2DSTE techniques. Materials and Methods Twenty-four rats underwent subtotal nephrectomy to produce progressive renal failure and were allocated equally into UC (n = 12) and Sal B-UC (n = 12) groups and monitored for 8 weeks. A sham-operated group was also included in this study (n = 12). Sal B was injected from weeks 4 to 8 in the Sal B-UC group. Conventional echocardiography, 2DSTE, and CMME were performed every 2 weeks post-operation, concomitantly with an evaluation of renal function. Histopathological and immunohistochemistry analyses were carried out to confirm the echocardiography findings. Results Renal failure and myocardial dysfunction were confirmed in the UC group from weeks 2 through 8. Eccentric and concentric hypertrophy was observed in the UC group, while the Sal B-UC group showed only eccentric hypertrophy. IVPG analysis did not reveal any significant differences between the groups. Edema, inflammation, fibrosis, and immunohistochemical expression of CD3 infiltration were higher in the UC group compared with sham and Sal B-UC groups. Conclusion 2DSTE and IVPG explored the pathophysiology during the development of UC and indicated the incidence of myocardial dysfunction before ventricular morphological changes without intracardiac flow changes. This study confirmed increased ventricular stiffness and fibrosis in UC rats which was potentially treated by Sal B via decreasing edema, inflammation, and fibrosis.
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Affiliation(s)
- Danfu Ma
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Departments of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Ahmed S. Mandour
- Departments of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Department of Animal Medicine (Internal Medicine), Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Ahmed Elfadadny
- Laboratory of Veterinary Internal Medicine, Division of Animal Life Science, Institute of Agriculture, Graduate School, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Department of Animal Internal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Hanan Hendawy
- Departments of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Department of Veterinary Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Tomohiko Yoshida
- Departments of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Hussein M. El-Husseiny
- Departments of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Koji Nishifuji
- Laboratory of Veterinary Internal Medicine, Division of Animal Life Science, Institute of Agriculture, Graduate School, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Ken Takahashi
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Zhenlei Zhou
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- *Correspondence: Zhenlei Zhou
| | - Yanbing Zhao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ryou Tanaka
- Departments of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Ryou Tanaka
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18
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Negru AG, Vintilă AM, Crișan S, Ana Luca S, Ivănică AE, Mihăicuță Ș, Cismaru G, Popescu F, Iovanovici DC, Luca CT. The Risk of Sudden Death Associated with Symptomatic and Asymptomatic Ventricular Pre-excitation in Athletes. ROMANIAN JOURNAL OF CARDIOLOGY 2022; 32:85-92. [DOI: 10.2478/rjc-2022-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
Abstract
Abstract
Sudden death (SD) in athletes is a potential avoidable dramatic scenario. When done regularly, cardiological evaluation increases the chances of diagnosing ventricular pre-excitation. Consequently, the following question arises: what is the real incidence of SD risk in athletes with Wolff-Parkinson-White (WPW) syndrome/pattern? This study included 84 consecutive patients diagnosed with WPW and was designed as a retrospective analysis of data acquired between 2011 and 2021 to answer this question. The patients were evaluated using a 12-lead electrocardiogram (ECG), echocardiography, stress test, and electrophysiological study (EPS). The SD risk linked to WPW was defined as ≥ 1 of the following: the anterograde effective refractory period (AERP) of the accessory pathway (AP) ≤ 250 ms, atrial fibrillation (AF) with the shortest RR pre-excited interval ≤ 250 ms, syncope during AF or atrioventricular reentry tachycardia. The athletes with WPW pattern (n=25) or syndrome (n=59) at risk of SD were identified and treated with radiofrequency ablation (RFA). The mean age was 19.83 (10–29) years; 66.6% were men. Seventeen athletes (n=17; 20.23%) were found with SD risk: 15 (n=15; 17.85%) in the WPW syndrome group and 2 (n=2; 2.38%) in the WPW pattern group. During the EPS, n=4 developed syncope: 1 during antidromic tachycardia and 3 during pre-excited AF. RFA was curative in 96.42% of cases. The EPS is mandatory to identify athletes with short AERP APs linked to an increased risk of SD. RFA is the intervention that settles the patients into a risk-free area, allowing resumption of sports shortly afterward.
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Affiliation(s)
- Alina Gabriela Negru
- Department of Cardiology , University of Medicine and Pharmacy “Victor Babeş” Timișoara , Eftimie Murgu Sq. no. 2 , Timișoara , Romania
- Institute of Cardiovascular Diseases , Gh. Adam 13 A , , Timișoara , Romania
| | - Ana-Maria Vintilă
- Internal Medicine and Cardiology Department, Colțea Clinical Hospital , Bucharest , Romania
- Internal Medicine Department , Carol Davila University of Medicine and Pharmacy , Bucharest , Romania
| | - Simina Crișan
- Department of Cardiology , University of Medicine and Pharmacy “Victor Babeş” Timișoara , Eftimie Murgu Sq. no. 2 , Timișoara , Romania
- Institute of Cardiovascular Diseases , Gh. Adam 13 A , , Timișoara , Romania
| | - Silvia Ana Luca
- University of Medicine and Pharmacy “Victor Babeş” Timișoara , student
| | - Adrian Emil Ivănică
- Zollernalb Klinikum Albstadt – Friedrichstr. 39 , Albstadt , Ebingen , Germany
| | - Ștefan Mihăicuță
- Department of Pulmonology , University of Medicine and Pharmacy Timișoara , Timișoara , Romania
| | - Gabriel Cismaru
- “Iuliu Hatieganu” University of Medicine and Pharmacy , 5th Department of Internal Medicine, Cardiology-Rehabilitation , Cluj-Napoca , Romania
| | - Florina Popescu
- Discipline of Occupational Health , “Victor Babeş” University of Medicine and Pharmacy Timișoara , Romania
| | - Diana-Carina Iovanovici
- Doctoral School of Biological and Biomedical Sciences , University of Oradea , Oradea , Romania , PhD student
| | - Constantin Tudor Luca
- Department of Cardiology , University of Medicine and Pharmacy “Victor Babeş” Timișoara , Eftimie Murgu Sq. no. 2 , Timișoara , Romania
- Institute of Cardiovascular Diseases , Gh. Adam 13 A , , Timișoara , Romania
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Syed AM, Kundu S, Ram C, Kulhari U, Kumar A, Mugale MN, Mohapatra P, Murty US, Sahu BD. Up-regulation of Nrf2/HO-1 and inhibition of TGF-β1/Smad2/3 signaling axis by daphnetin alleviates transverse aortic constriction-induced cardiac remodeling in mice. Free Radic Biol Med 2022; 186:17-30. [PMID: 35513128 DOI: 10.1016/j.freeradbiomed.2022.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/20/2022] [Accepted: 04/28/2022] [Indexed: 12/12/2022]
Abstract
Oxidative damage and accumulation of extracellular matrix (ECM) components play a crucial role in the adverse outcome of cardiac hypertrophy. Evidence suggests that nuclear factor erythroid-derived factor 2 related factor 2 (Nrf2) can modulate oxidative damage and adverse myocardial remodeling. Daphnetin (Daph) is a coumarin obtained from the plant genus Daphne species that exerts anti-oxidative and anti-inflammatory properties. Herein, we investigated the roles of Daph in transverse aortic constriction (TAC)-induced cardiac hypertrophy and fibrosis in mice. TAC-induced alterations in cardiac hypertrophy markers, histopathological changes, and cardiac function were markedly ameliorated by oral administration of Daph in mice. We found that Daph significantly reduced the reactive oxygen species (ROS) generation, increased the nuclear translocation of Nrf2, and consequently, reinstated the protein levels of NAD(P)H quinone dehydrogenase1 (NQO1), heme oxygenase-1 (HO-1), and other antioxidants in the heart. Besides, Daph significantly inhibited the TAC-induced accumulation of ECM components, including α-smooth muscle actin (α-SMA), collagen I, collagen III, and fibronectin, and interfered with the TGF-β1/Smad2/3 signaling axis. Further studies revealed that TAC-induced terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) positive nuclei and the protein levels of Bax/Bcl2 ratio and cleaved caspase 3 were substantially decreased by Daph treatment. We further characterized the effect of Daph on angiotensin II (Ang-II)-stimulated H9c2 cardiomyoblast cells and observed that Daph markedly decreased the Ang-II induced increase in cell size, production of ROS, and proteins associated with apoptosis and fibrosis. Mechanistically, Daph alone treatment enhanced the protein levels of Nrf2, NQO1, and HO-1 in H9c2 cells. The inhibition of this axis by Si-Nrf2 transfection abolished the protective effect of Daph in H9c2 cells. Taken together, Daph effectively counteracted the TAC-induced cardiac hypertrophy and fibrosis by improving the Nrf2/HO-1 axis and inhibiting the TGF-β1/Smad2/3 signaling axis.
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Affiliation(s)
- Abu Mohammad Syed
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Sourav Kundu
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Chetan Ram
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Uttam Kulhari
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Akhilesh Kumar
- Toxicology & Experimental Medicine, CSIR- Central Drug Research Institute (CDRI), Lucknow, 226 031, India
| | - Madhav Nilakanth Mugale
- Toxicology & Experimental Medicine, CSIR- Central Drug Research Institute (CDRI), Lucknow, 226 031, India
| | - Purusottam Mohapatra
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Upadhyayula Suryanarayana Murty
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Bidya Dhar Sahu
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India.
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20
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Jurasz M, Boraczyński M, Laskin JJ, Kamelska-Sadowska AM, Podstawski R, Jaszczur-Nowicki J, Nowakowski JJ, Gronek P. Acute Cardiorespiratory and Metabolic Responses to Incremental Cycling Exercise in Endurance- and Strength-Trained Athletes. BIOLOGY 2022; 11:biology11050643. [PMID: 35625371 PMCID: PMC9138148 DOI: 10.3390/biology11050643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to examine the acute effects of a progressive submaximal cycling exercise on selected cardiorespiratory and metabolic variables in endurance and strength trained athletes. The sample comprised 32 participants aged 22.0 ± 0.54 years who were assigned into three groups: an endurance trained group (END, triathletes, n = 10), a strength trained group (STR, bodybuilders, n = 10), and a control group (CON, recreationally active students, n = 12). The incremental cycling exercise was performed using a progressive protocol starting with a 3 min resting measurement and then a 50 W workload with subsequent constant increments of 50 W every 3 min until 200 W. The following cardiometabolic variables were evaluated: heart rate (HR), oxygen uptake (VO2), carbon dioxide production (VCO2), respiratory exchange ratio (RER), systolic and diastolic blood pressure (SBP and DBP), and blood lactate (BLa−). We found the between-group differences in metabolic variables (the average RER and BLa−) were statistically significant (Tukey’s HSD test: CON vs. STR, p < 0.01 and p < 0.05, respectively; CON vs. END, p < 0.001; END vs. STR, p < 0.001). RER and BLa− differences in all groups depended on the workload level (G-G-epsilon = 0.438; p < 0.004 and G-G-epsilon = 0.400; p < 0.001, respectively). There were no significant differences in cardiorespiratory variables between endurance- and strength-trained groups. In conclusion, this study demonstrated that acute cardiorespiratory responses at each of the four submaximal workloads were comparable in endurance- compared to strength-trained athletes, but significantly different compared to recreationally active men. However, there were significant differences in the metabolic responses of RER and BLa−. Based on our findings we recommend that endurance-trained athletes follow a concurrent training program, combined strength and endurance training, to improve neuromuscular parameters and thus optimize their economy of movement and endurance-specific muscle power capacity.
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Affiliation(s)
- Maciej Jurasz
- Department of Sport Medicine and Traumatology, Poznań University of Physical Education, 61-871 Poznań, Poland;
| | - Michał Boraczyński
- Faculty of Health Sciences, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
- Correspondence: ; Tel.: +48-533-101-720
| | - James J. Laskin
- School of Physical Therapy and Rehabilitation Sciences, University of Montana, Missoula, MT 59812, USA;
| | - Anna M. Kamelska-Sadowska
- Department of Rehabilitation and Orthopedics, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 11-082 Olsztyn, Poland;
- Clinic of Rehabilitation, Provincial Specialist Children’s Hospital in Olsztyn, 10-561 Olsztyn, Poland
| | - Robert Podstawski
- Department of Tourism, Recreation and Ecology, University of Warmia and Mazury in Olsztyn, 10-957 Olsztyn, Poland; (R.P.); (J.J.-N.)
| | - Jarosław Jaszczur-Nowicki
- Department of Tourism, Recreation and Ecology, University of Warmia and Mazury in Olsztyn, 10-957 Olsztyn, Poland; (R.P.); (J.J.-N.)
| | - Jacek J. Nowakowski
- Department of Ecology and Environmental Protection, University of Warmia and Mazury in Olsztyn, 10-727 Olsztyn, Poland;
| | - Piotr Gronek
- Laboratory of Healthy Aging, Department of Dance, Poznań University of Physical Education, 61-871 Poznań, Poland;
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21
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Baron MA, Ferreira LRP, Teixeira PC, Moretti AIS, Santos RHB, Frade AF, Kuramoto A, Debbas V, Benvenuti LA, Gaiotto FA, Bacal F, Pomerantzeff P, Chevillard C, Kalil J, Cunha-Neto E. Matrix Metalloproteinase 2 and 9 Enzymatic Activities are Selectively Increased in the Myocardium of Chronic Chagas Disease Cardiomyopathy Patients: Role of TIMPs. Front Cell Infect Microbiol 2022; 12:836242. [PMID: 35372112 PMCID: PMC8968914 DOI: 10.3389/fcimb.2022.836242] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/17/2022] [Indexed: 11/16/2022] Open
Abstract
Chronic Chagas disease (CCC) is an inflammatory dilated cardiomyopathy with a worse prognosis compared to other cardiomyopathies. We show the expression and activity of Matrix Metalloproteinases (MMP) and of their inhibitors TIMP (tissue inhibitor of metalloproteinases) in myocardial samples of end stage CCC, idiopathic dilated cardiomyopathy (DCM) patients, and from organ donors. Our results showed significantly increased mRNA expression of several MMPs, several TIMPs and EMMPRIN in CCC and DCM samples. MMP-2 and TIMP-2 protein levels were significantly elevated in both sample groups, while MMP-9 protein level was exclusively increased in CCC. MMPs 2 and 9 activities were also exclusively increased in CCC. Results suggest that the balance between proteins that inhibit the MMP-2 and 9 is shifted toward their activation. Inflammation-induced increases in MMP-2 and 9 activity and expression associated with imbalanced TIMP regulation could be related to a more extensive heart remodeling and poorer prognosis in CCC patients.
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Affiliation(s)
- Monique Andrade Baron
- Laboratory of Immunology, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
- Division of Clinical Immunology and Allergy, University of São Paulo, School of Medicine, São Paulo, Brazil
- Institute for Investigation in Immunology, Institutos Nacionais de Ciência e Tecnologia (INCT), São Paulo, Brazil
| | - Ludmila Rodrigues Pinto Ferreira
- Laboratory of Immunology, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
- Division of Clinical Immunology and Allergy, University of São Paulo, School of Medicine, São Paulo, Brazil
- Institute for Investigation in Immunology, Institutos Nacionais de Ciência e Tecnologia (INCT), São Paulo, Brazil
- Department of Bioengineering, Universidade Santo Amaro, São Paulo, Brazil
| | - Priscila Camillo Teixeira
- Laboratory of Immunology, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
- Division of Clinical Immunology and Allergy, University of São Paulo, School of Medicine, São Paulo, Brazil
- Institute for Investigation in Immunology, Institutos Nacionais de Ciência e Tecnologia (INCT), São Paulo, Brazil
| | - Ana Iochabel Soares Moretti
- Vascular Biology Laboratory, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
| | | | - Amanda Farage Frade
- Laboratory of Immunology, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
- Division of Clinical Immunology and Allergy, University of São Paulo, School of Medicine, São Paulo, Brazil
- Institute for Investigation in Immunology, Institutos Nacionais de Ciência e Tecnologia (INCT), São Paulo, Brazil
| | - Andréia Kuramoto
- Laboratory of Immunology, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
- Institute for Investigation in Immunology, Institutos Nacionais de Ciência e Tecnologia (INCT), São Paulo, Brazil
| | - Victor Debbas
- Department of Bioengineering, Universidade Santo Amaro, São Paulo, Brazil
| | - Luiz Alberto Benvenuti
- Division of Transplantation, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
| | - Fabio Antônio Gaiotto
- Vascular Biology Laboratory, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
| | - Fernando Bacal
- Vascular Biology Laboratory, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
| | - Pablo Pomerantzeff
- Vascular Biology Laboratory, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
| | - Christophe Chevillard
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR_1090, Aix Marseille Université, TAGC Theories and Approaches of Genomic Complexity, Institut MarMaRa, Marseille, France
- *Correspondence: Edecio Cunha-Neto, ; Christophe Chevillard,
| | - Jorge Kalil
- Division of Clinical Immunology and Allergy, University of São Paulo, School of Medicine, São Paulo, Brazil
- Institute for Investigation in Immunology, Institutos Nacionais de Ciência e Tecnologia (INCT), São Paulo, Brazil
| | - Edecio Cunha-Neto
- Laboratory of Immunology, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
- Division of Clinical Immunology and Allergy, University of São Paulo, School of Medicine, São Paulo, Brazil
- Institute for Investigation in Immunology, Institutos Nacionais de Ciência e Tecnologia (INCT), São Paulo, Brazil
- *Correspondence: Edecio Cunha-Neto, ; Christophe Chevillard,
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22
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Pitoulis FG, Nunez-Toldra R, Xiao K, Kit-Anan W, Mitzka S, Jabbour RJ, Harding SE, Perbellini F, Thum T, de Tombe PP, Terracciano CM. Remodelling of adult cardiac tissue subjected to physiological and pathological mechanical load in vitro. Cardiovasc Res 2022; 118:814-827. [PMID: 33723566 PMCID: PMC8859636 DOI: 10.1093/cvr/cvab084] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 03/11/2021] [Indexed: 01/14/2023] Open
Abstract
AIMS Cardiac remodelling is the process by which the heart adapts to its environment. Mechanical load is a major driver of remodelling. Cardiac tissue culture has been frequently employed for in vitro studies of load-induced remodelling; however, current in vitro protocols (e.g. cyclic stretch, isometric load, and auxotonic load) are oversimplified and do not accurately capture the dynamic sequence of mechanical conformational changes experienced by the heart in vivo. This limits translational scope and relevance of findings. METHODS AND RESULTS We developed a novel methodology to study chronic load in vitro. We first developed a bioreactor that can recreate the electromechanical events of in vivo pressure-volume loops as in vitro force-length loops. We then used the bioreactor to culture rat living myocardial slices (LMS) for 3 days. The bioreactor operated based on a 3-Element Windkessel circulatory model enabling tissue mechanical loading based on physiologically relevant parameters of afterload and preload. LMS were continuously stretched/relaxed during culture simulating conditions of physiological load (normal preload and afterload), pressure-overload (normal preload and high afterload), or volume-overload (high preload & normal afterload). At the end of culture, functional, structural, and molecular assays were performed to determine load-induced remodelling. Both pressure- and volume-overloaded LMS showed significantly decreased contractility that was more pronounced in the latter compared with physiological load (P < 0.0001). Overloaded groups also showed cardiomyocyte hypertrophy; RNAseq identified shared and unique genes expressed in each overload group. The PI3K-Akt pathway was dysregulated in volume-overload while inflammatory pathways were mostly associated with remodelling in pressure-overloaded LMS. CONCLUSION We have developed a proof-of-concept platform and methodology to recreate remodelling under pathophysiological load in vitro. We show that LMS cultured in our bioreactor remodel as a function of the type of mechanical load applied to them.
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Affiliation(s)
- Fotios G Pitoulis
- National Heart and Lung Institute, Imperial College London, 72 Du Cane Road, Hammersmith Hospital, ICTEM Building, W12 0NN London, UK
| | - Raquel Nunez-Toldra
- National Heart and Lung Institute, Imperial College London, 72 Du Cane Road, Hammersmith Hospital, ICTEM Building, W12 0NN London, UK
| | - Ke Xiao
- Institute for Molecular and Translational Therapeutic Strategies, Hannover Medical School, OE 8886, Carl-Neuberg-Str. 1, J3 Building, Level 1, Room 3030, 30625 Hannover, Germany
| | - Worrapong Kit-Anan
- National Heart and Lung Institute, Imperial College London, 72 Du Cane Road, Hammersmith Hospital, ICTEM Building, W12 0NN London, UK
| | - Saskia Mitzka
- Institute for Molecular and Translational Therapeutic Strategies, Hannover Medical School, OE 8886, Carl-Neuberg-Str. 1, J3 Building, Level 1, Room 3030, 30625 Hannover, Germany
| | - Richard J Jabbour
- National Heart and Lung Institute, Imperial College London, 72 Du Cane Road, Hammersmith Hospital, ICTEM Building, W12 0NN London, UK
| | - Sian E Harding
- National Heart and Lung Institute, Imperial College London, 72 Du Cane Road, Hammersmith Hospital, ICTEM Building, W12 0NN London, UK
| | - Filippo Perbellini
- Institute for Molecular and Translational Therapeutic Strategies, Hannover Medical School, OE 8886, Carl-Neuberg-Str. 1, J3 Building, Level 1, Room 3030, 30625 Hannover, Germany
| | - Thomas Thum
- National Heart and Lung Institute, Imperial College London, 72 Du Cane Road, Hammersmith Hospital, ICTEM Building, W12 0NN London, UK
- Institute for Molecular and Translational Therapeutic Strategies, Hannover Medical School, OE 8886, Carl-Neuberg-Str. 1, J3 Building, Level 1, Room 3030, 30625 Hannover, Germany
| | - Pieter P de Tombe
- Department of Physiology and Biophysics, University of Illinois at Chicago, 835 S. Wolcott Rm E202 (MC901), Chicago, IL 60612-7342, USA
| | - Cesare M Terracciano
- National Heart and Lung Institute, Imperial College London, 72 Du Cane Road, Hammersmith Hospital, ICTEM Building, W12 0NN London, UK
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23
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Meshram S, Verma VK, Mutneja E, Sahu AK, Malik S, Mishra P, Bhatia J, Arya DS. Evidence-based mechanistic role of chrysin towards protection of cardiac hypertrophy and fibrosis in rats. Br J Nutr 2022; 129:1-14. [PMID: 35177130 DOI: 10.1017/s0007114522000472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cardiac hypertrophy is the enlargement of cardiomyocytes in response to persistent release of catecholamine which further leads to cardiac fibrosis. Chrysin, flavonoid from honey, is well known for its multifarious properties like antioxidant, anti-inflammatory, anti-fibrotic and anti-apoptotic. To investigate the cardioprotective potential of chrysin against isoproterenol (ISO), cardiac hypertrophy and fibrosis are induced in rats. Acclimatised male albino Wistar rats were divided into seven groups (n 6): normal (carboxymethyl cellulose at 0·5 % p.o.; as vehicle), hypertrophy control (ISO 3 mg/kg, s.c.), CHY15 + H, CHY30 + H & CHY60 + H (chrysin; p.o.15, 30 and 60 mg/kg respectively + ISO at 3 mg/kg, s.c.), CHY60 (chrysin 60 mg/kg in per se) and LST + H (losartan 10 mg/kg p.o. + ISO 3 mg/kg, s.c.) were treated for 28 d. After the dosing schedule on day 29, haemodynamic parameters were recorded, after that blood and heart were excised for biochemical, histological, ultra-structural and molecular evaluations. ISO administration significantly increases heart weight:body weight ratio, pro-oxidants, inflammatory and cardiac injury markers. Further, histopathological, ultra-structural and molecular studies confirmed deteriorative changes due to ISO administration. Pre-treatment with chrysin of 60 mg/kg reversed the ISO-induced damage to myocardium and prevent cardiac hypertrophy and fibrosis through various anti-inflammatory, anti-apoptotic, antioxidant and anti-fibrotic pathways. Data demonstrated that chrysin attenuated myocardial hypertrophy and prevented fibrosis via activation of transforming growth factor-beta (TGF-β)/Smad signalling pathway.
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Affiliation(s)
- Sonali Meshram
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
| | - Vipin Kumar Verma
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
| | - Ekta Mutneja
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
| | - Anil Kumar Sahu
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
| | - Salma Malik
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
| | - Prashant Mishra
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
| | - Jagriti Bhatia
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
| | - Dharamvir S Arya
- Cardiovascular Research Laboratory, Department of Pharmacology, All India Institute of Medical Sciences, New Delhi110029, India
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24
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Harlev I, Holmes JW, Cohen N. The influence of boundary conditions and protein availability on the remodeling of cardiomyocytes. Biomech Model Mechanobiol 2022; 21:189-201. [PMID: 34661804 DOI: 10.1007/s10237-021-01526-5] [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: 06/07/2021] [Accepted: 10/03/2021] [Indexed: 11/27/2022]
Abstract
The heart muscle is capable of growing and remodeling in response to changes in its mechanical and hormonal environment. While this capability is essential to the healthy function of the heart, under extreme conditions it may also lead to heart failure. In this work, we derive a thermodynamically based and microscopically motivated model that highlights the influence of mechanical boundary conditions and hormonal changes on the remodeling process in cardiomyocytes. We begin with a description of the kinematics associated with the remodeling process. Specifically, we derive relations between the macroscopic deformation, the number of sarcomeres, the sarcomere stretch, and the number of myofibrils in the cell. We follow with the derivation of evolution equations that describe the production and the degradation of protein in the cytosol. Next, we postulate a dissipation-based formulation that characterizes the remodeling process. We show that this process stems from a competition between the internal energy, the entropy, the energy supplied to the system by ATP and other sources, and dissipation mechanisms. To illustrate the merit of this framework, we study four initial and boundary conditions: (1) a myocyte undergoing isometric contractions in the presence of either an infinite or a limited supply of proteins and (2) a myocyte that is free to dilate along the radial direction with an infinite and a limited supply of proteins. This work underscores the importance of boundary conditions on the overall remodeling response of cardiomyocytes, suggesting a plausible mechanism that might play a role in distinguishing eccentric vs. concentric hypertrophy.
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Affiliation(s)
- Ido Harlev
- Department of Materials Science and Engineering, Technion - Israel Institute of Technology, 3200003, Haifa, Israel
| | - Jeffrey W Holmes
- Division of Cardiovascular Disease, Division of Cardiothoracic Surgery, Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Noy Cohen
- Department of Materials Science and Engineering, Technion - Israel Institute of Technology, 3200003, Haifa, Israel.
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25
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Cornwell JD, McDermott JC. MEF2 in cardiac hypertrophy in response to hypertension. Trends Cardiovasc Med 2022; 33:204-212. [PMID: 35026393 DOI: 10.1016/j.tcm.2022.01.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 12/14/2022]
Abstract
Hypertension is a globally prevalent pathological condition and an underlying risk factor for the development of cardiac hypertrophy leading to heart failure. Myocyte enhancer factor 2 (Mef2) has been identified as one of the primary effectors of morphological changes in the hypertensive heart, as part of a complex network of molecular signaling controlling cardiac gene expression. Experimental chronic pressure-overload models that mimic hypertension in the mammalian heart lead to the activation of various pathological mechanisms that result in structural changes leading to debilitating cardiac hypertrophy and ultimately heart failure. The purpose here is to survey the literature implicating Mef2 in hypertension induced cardiac hypertrophy, towards illuminating points of interest for understanding and potentially treating heart failure.
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Affiliation(s)
- James D Cornwell
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - John C McDermott
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada; Muscle Health Research Centre (MHRC), York University, Toronto, ON M3J 1P3, Canada; Centre for Research in Biomolecular Interactions (CRBI), York University, Toronto, ON M3J 1P3, Canada.
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26
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Camman M, Joanne P, Agbulut O, Hélary C. 3D models of dilated cardiomyopathy: Shaping the chemical, physical and topographical properties of biomaterials to mimic the cardiac extracellular matrix. Bioact Mater 2022; 7:275-291. [PMID: 34466733 PMCID: PMC8379361 DOI: 10.1016/j.bioactmat.2021.05.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 12/12/2022] Open
Abstract
The pathophysiology of dilated cardiomyopathy (DCM), one major cause of heart failure, is characterized by the dilation of the heart but remains poorly understood because of the lack of adequate in vitro models. Current 2D models do not allow for the 3D organotypic organization of cardiomyocytes and do not reproduce the ECM perturbations. In this review, the different strategies to mimic the chemical, physical and topographical properties of the cardiac tissue affected by DCM are presented. The advantages and drawbacks of techniques generating anisotropy required for the cardiomyocytes alignment are discussed. In addition, the different methods creating macroporosity and favoring organotypic organization are compared. Besides, the advances in the induced pluripotent stem cells technology to generate cardiac cells from healthy or DCM patients will be described. Thanks to the biomaterial design, some features of the DCM extracellular matrix such as stiffness, porosity, topography or chemical changes can impact the cardiomyocytes function in vitro and increase their maturation. By mimicking the affected heart, both at the cellular and at the tissue level, 3D models will enable a better understanding of the pathology and favor the discovery of novel therapies.
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Affiliation(s)
- Marie Camman
- Sorbonne Université, CNRS, UMR 7574, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu (case 174), F-75005, Paris, France
- Sorbonne Université, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Inserm ERL U1164, Biological Adaptation and Ageing, 7 quai St-Bernard (case 256), F-75005, Paris, France
| | - Pierre Joanne
- Sorbonne Université, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Inserm ERL U1164, Biological Adaptation and Ageing, 7 quai St-Bernard (case 256), F-75005, Paris, France
| | - Onnik Agbulut
- Sorbonne Université, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Inserm ERL U1164, Biological Adaptation and Ageing, 7 quai St-Bernard (case 256), F-75005, Paris, France
| | - Christophe Hélary
- Sorbonne Université, CNRS, UMR 7574, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu (case 174), F-75005, Paris, France
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27
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Dantas PS, Guzzoni V, Perez JD, Arita DY, Novaes PD, Marcondes FK, Casarini DE, Cunha TS. Nandrolone combined with strenuous resistance training impairs myocardial proteome profile of rats. Steroids 2021; 175:108916. [PMID: 34492258 DOI: 10.1016/j.steroids.2021.108916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 08/02/2021] [Accepted: 08/30/2021] [Indexed: 12/25/2022]
Abstract
We aimed to investigate the effects of high doses of nandrolone decanoate and resistance training (RT) on the proteomic profile of the left ventricle (LV) of rats, using a label-free quantitative approach. Male rats were randomized into four groups: untrained vehicle (UTV), trained vehicle (TV), untrained nandrolone (UTN), and trained nandrolone (TN). Rats were familiarized with the exercise training protocol (jump exercise) for one week. Jump-exercise was performed five days a week for 6 weeks, with 30 s of inter-set rest intervals. Nandrolone was administrated for 6 weeks (5 mg/kg, twice a week, via intramuscular). Systolic and diastolic arterial pressure and heart rate were measured 48 h post-training. LV was isolated and collagen content was measured. The expression of cardiac proteins was analyzed by ultra-efficiency liquid chromatography with mass spectrometry high / low collision energy (UPLC/MSE). Nandrolone and RT led to cardiac hypertrophy, even though high doses of nandrolone counteracted the RT-induced arterial pressures lowering. Nandrolone also affected the proteome profile negatively in LV of rats, including critical proteins related to biological processes (metabolism, oxidative stress, inflammation), structural function and membrane transporters. Our findings show physiological relevance since high doses of nandrolone induced detrimental effects on the proteome profile of heart tissue and hemodynamic parameters of rats. Furthermore, as nandrolone abuse has become increasingly common among recreational athletes and casual fitness enthusiasts, we consider that our findings have clinical relevance as well.
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Affiliation(s)
- Patrícia Sousa Dantas
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Vinicius Guzzoni
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, Department of Science and Technology, São José dos Campos, São Paulo, Brazil
| | - Juliana Dinéia Perez
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Danielle Yuri Arita
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Pedro Duarte Novaes
- Piracicaba Dental School, Department of Morphology, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Fernanda Klein Marcondes
- Piracicaba Dental School, Department of Physiological Sciences, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Dulce Elena Casarini
- Federal University of São Paulo (UNIFESP), Department of Medicine, Nephrology Division, São Paulo, São Paulo, Brazil
| | - Tatiana Sousa Cunha
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, Department of Science and Technology, São José dos Campos, São Paulo, Brazil.
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28
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Starcher AE, Peissig K, Stanton JB, Churchill GA, Cai D, Maxwell JT, Grider A, Love K, Chen SY, Coleman AE, Strauss E, Pazdro R. A systems approach using Diversity Outbred mice distinguishes the cardiovascular effects and genetics of circulating GDF11 from those of its homolog, myostatin. G3-GENES GENOMES GENETICS 2021; 11:6362884. [PMID: 34510201 PMCID: PMC8527520 DOI: 10.1093/g3journal/jkab293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/05/2021] [Indexed: 12/02/2022]
Abstract
Growth differentiation factor 11 (GDF11) is a member of the TGF-β protein family that has been implicated in the development of cardiac hypertrophy. While some studies have suggested that systemic GDF11 protects against cardiomyocyte enlargement and left ventricular wall thickening, there remains uncertainty about the true impact of GDF11 and whether its purported effects are actually attributable to its homolog myostatin. This study was conducted to resolve the statistical and genetic relationships among GDF11, myostatin, and cardiac hypertrophy in a mouse model of human genetics, the Diversity Outbred (DO) stock. In the DO population, serum GDF11 concentrations positively correlated with cardiomyocyte cross-sectional area, while circulating myostatin levels were negatively correlated with body weight, heart weight, and left ventricular wall thickness and mass. Genetic analyses revealed that serum GDF11 concentrations are modestly heritable (0.23) and identified a suggestive peak on murine chromosome 3 in close proximity to the gene Hey1, a transcriptional repressor. Bioinformatic analyses located putative binding sites for the HEY1 protein upstream of the Gdf11 gene in the mouse and human genomes. In contrast, serum myostatin concentrations were more heritable (0.57) than GDF11 concentrations, and mapping identified a significant locus near the gene FoxO1, which has binding motifs within the promoter regions of human and mouse myostatin genes. Together, these findings more precisely define the independent cardiovascular effects of GDF11 and myostatin, as well as their distinct regulatory pathways. Hey1 is a compelling candidate for the regulation of GDF11 and will be further evaluated in future studies.
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Affiliation(s)
- Abigail E Starcher
- Department of Nutritional Sciences, University of Georgia, Athens, GA 30602, USA
| | - Kristen Peissig
- Department of Nutritional Sciences, University of Georgia, Athens, GA 30602, USA
| | - James B Stanton
- Department of Pathology, University of Georgia College of Veterinary Medicine, Athens, GA 30602, USA
| | | | - Dunpeng Cai
- Department of Physiology, University of Georgia College of Veterinary Medicine, Athens, GA 30602, USA
| | - Joshua T Maxwell
- Department of Pediatrics, Emory School of Medicine, Atlanta, GA 30322, USA
| | - Arthur Grider
- Department of Nutritional Sciences, University of Georgia, Athens, GA 30602, USA
| | - Kim Love
- K. R. Love Quantitative Consulting and Collaboration, Athens, GA 30605, USA
| | - Shi-You Chen
- Department of Physiology, University of Georgia College of Veterinary Medicine, Athens, GA 30602, USA
| | - Amanda E Coleman
- Department of Small Animal Medicine & Surgery, University of Georgia College of Veterinary Medicine, Athens, GA 30602, USA
| | - Emma Strauss
- Department of Nutritional Sciences, University of Georgia, Athens, GA 30602, USA
| | - Robert Pazdro
- Department of Nutritional Sciences, University of Georgia, Athens, GA 30602, USA
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Natterson-Horowitz B, Baccouche BM, Mary J, Shivkumar T, Bertelsen MF, Aalkjær C, Smerup MH, Ajijola OA, Hadaya J, Wang T. Did giraffe cardiovascular evolution solve the problem of heart failure with preserved ejection fraction? EVOLUTION MEDICINE AND PUBLIC HEALTH 2021; 9:248-255. [PMID: 34447575 PMCID: PMC8385250 DOI: 10.1093/emph/eoab016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 06/04/2021] [Indexed: 11/18/2022]
Abstract
The evolved adaptations of other species can be a source of insight for novel biomedical innovation. Limitations of traditional animal models for the study of some pathologies are fueling efforts to find new approaches to biomedical investigation. One emerging approach recognizes the evolved adaptations in other species as possible solutions to human pathology. The giraffe heart, for example, appears resistant to pathology related to heart failure with preserved ejection fraction (HFpEF)—a leading form of hypertension-associated cardiovascular disease in humans. Here, we postulate that the physiological pressure-induced left ventricular thickening in giraffes does not result in the pathological cardiovascular changes observed in humans with hypertension. The mechanisms underlying this cardiovascular adaptation to high blood pressure in the giraffe may be a bioinspired roadmap for preventive and therapeutic strategies for human HFpEF.
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Affiliation(s)
- Barbara Natterson-Horowitz
- Department of Medicine, Harvard Medical School, Boston, MA, USA.,Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.,Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Basil M Baccouche
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.,Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Jennifer Mary
- Zoobiquity Research Initiative at UCLA, Los Angeles, CA 90024, USA
| | | | | | | | - Morten H Smerup
- Department of Cardiothoracic Surgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Olujimi A Ajijola
- UCLA Cardiac Arrhythmia Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Joseph Hadaya
- UCLA Cardiac Arrhythmia Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Molecular, Cellular and Integrative Physiology Program, UCLA, Los Angeles, CA, USA
| | - Tobias Wang
- Zoophysiology, Department of Biology, Aarhus University, Aarhus, Denmark
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Sex-Specific Impacts of Exercise on Cardiovascular Remodeling. J Clin Med 2021; 10:jcm10173833. [PMID: 34501285 PMCID: PMC8432130 DOI: 10.3390/jcm10173833] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/21/2021] [Accepted: 08/21/2021] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular diseases (CVD) remain the leading cause of death in men and women. Biological sex plays a major role in cardiovascular physiology and pathological cardiovascular remodeling. Traditionally, pathological remodeling of cardiovascular system refers to the molecular, cellular, and morphological changes that result from insults, such as myocardial infarction or hypertension. Regular exercise training is known to induce physiological cardiovascular remodeling and beneficial functional adaptation of the cardiovascular apparatus. However, impact of exercise-induced cardiovascular remodeling and functional adaptation varies between males and females. This review aims to compare and contrast sex-specific manifestations of exercise-induced cardiovascular remodeling and functional adaptation. Specifically, we review (1) sex disparities in cardiovascular function, (2) influence of biological sex on exercise-induced cardiovascular remodeling and functional adaptation, and (3) sex-specific impacts of various types, intensities, and durations of exercise training on cardiovascular apparatus. The review highlights both animal and human studies in order to give an all-encompassing view of the exercise-induced sex differences in cardiovascular system and addresses the gaps in knowledge in the field.
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31
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Benefits and limitations of electrocardiographic and echocardiographic screening in top level endurance athletes. Biol Sport 2021; 38:71-79. [PMID: 33795916 PMCID: PMC7996387 DOI: 10.5114/biolsport.2020.97670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/06/2020] [Accepted: 07/11/2020] [Indexed: 01/19/2023] Open
Abstract
The study was designed to assess the usefulness of routine electrocardiography (ECG) as well as transthoracic echocardiography (TTE) in screening top level endurance athletes. An additional goal was to attempt to identify factors determining occurrence of adaptive and abnormal changes in ECG and TTE. The retrospective analysis included basic medical data, ECG and TTE results of 262 athletes (123 rowers, 32 canoeists and 107 cyclists), members of the Polish National Team. The athletes were divided into two age groups: young (≤ 18 years; n = 177) and elite (> 18 years; n = 85). ECG and TTE measurements were analysed according to the International Recommendations from 2017 and 2015, respectively. Adaptive ECG changes were found in 165 (63%) athletes. Abnormal ECG changes were identified in 10 (3.8%) athletes. 98% of athletes exceeded TTE norms for the general population and 26% exceeded norms for athletes. The occurrence of both adaptive ECG findings and abnormalities in the TTE (in norms for athletes) was strongly associated with the years of training, hours of training per week and the age of the athlete. Male gender and the years of training were independent predictors of the ECG and TTE findings. Abnormal ECG changes were not related to the time of sport. Among 10 athletes with ECG changes, only 3 had changes in TTE and no relationship was found between abnormal finding in ECG and TTE (p = 0.45). ECG and TTE screening complement each other in identifying endurance athletes requiring treatment or verification. Unlike abnormal ECG changes, adaptive ECG changes and TTE abnormalities are strongly related to the training duration, which reflects physiological adaptation of the heart to physical exertion in high endurance athletes.
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32
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Fan Y, Coll-Font J, van den Boomen M, Kim JH, Chen S, Eder RA, Roche ET, Nguyen CT. Characterization of Exercise-Induced Myocardium Growth Using Finite Element Modeling and Bayesian Optimization. Front Physiol 2021; 12:694940. [PMID: 34434115 PMCID: PMC8381603 DOI: 10.3389/fphys.2021.694940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/19/2021] [Indexed: 02/03/2023] Open
Abstract
Cardiomyocyte growth can occur in both physiological (exercised-induced) and pathological (e.g., volume overload and pressure overload) conditions leading to left ventricular (LV) hypertrophy. Studies using animal models and histology have demonstrated the growth and remodeling process at the organ level and tissue-cellular level, respectively. However, the driving factors of growth and the mechanistic link between organ, tissue, and cellular growth remains poorly understood. Computational models have the potential to bridge this gap by using constitutive models that describe the growth and remodeling process of the myocardium coupled with finite element (FE) analysis to model the biomechanics of the heart at the organ level. Using subject-specific imaging data of the LV geometry at two different time points, an FE model can be created with the inverse method to characterize the growth parameters of each subject. In this study, we developed a framework that takes in vivo cardiac magnetic resonance (CMR) imaging data of exercised porcine model and uses FE and Bayesian optimization to characterize myocardium growth in the transverse and longitudinal directions. The efficacy of this framework was demonstrated by successfully predicting growth parameters of 18 synthetic LV targeted masks which were generated from three LV porcine geometries. The framework was further used to characterize growth parameters in 4 swine subjects that had been exercised. The study suggested that exercise-induced growth in swine is prone to longitudinal cardiomyocyte growth (58.0 ± 19.6% after 6 weeks and 79.3 ± 15.6% after 12 weeks) compared to transverse growth (4.0 ± 8.0% after 6 weeks and 7.8 ± 9.4% after 12 weeks). This framework can be used to characterize myocardial growth in different phenotypes of LV hypertrophy and can be incorporated with other growth constitutive models to study different hypothetical growth mechanisms.
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Affiliation(s)
- Yiling Fan
- Cardiovascular Bioengineering and Imaging Laboratory, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, United States,Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States,Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Jaume Coll-Font
- Cardiovascular Bioengineering and Imaging Laboratory, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, United States,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States,Harvard Medical School, Boston, MA, United States
| | - Maaike van den Boomen
- Cardiovascular Bioengineering and Imaging Laboratory, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, United States,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States,Harvard Medical School, Boston, MA, United States
| | - Joan H. Kim
- Cardiovascular Bioengineering and Imaging Laboratory, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, United States
| | - Shi Chen
- Cardiovascular Bioengineering and Imaging Laboratory, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, United States
| | - Robert Alan Eder
- Cardiovascular Bioengineering and Imaging Laboratory, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, United States
| | - Ellen T. Roche
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States,Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, United States,Harvard Medical School, Boston, MA, United States,*Correspondence: Ellen T. Roche,
| | - Christopher T. Nguyen
- Cardiovascular Bioengineering and Imaging Laboratory, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, United States,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States,Harvard Medical School, Boston, MA, United States,Christopher T. Nguyen,
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Marino F, Scalise M, Cianflone E, Salerno L, Cappetta D, Salerno N, De Angelis A, Torella D, Urbanek K. Physical Exercise and Cardiac Repair: The Potential Role of Nitric Oxide in Boosting Stem Cell Regenerative Biology. Antioxidants (Basel) 2021; 10:1002. [PMID: 34201562 PMCID: PMC8300666 DOI: 10.3390/antiox10071002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/14/2021] [Accepted: 06/19/2021] [Indexed: 12/11/2022] Open
Abstract
Over the years strong evidence has been accumulated showing that aerobic physical exercise exerts beneficial effects on the prevention and reduction of cardiovascular risk. Exercise in healthy subjects fosters physiological remodeling of the adult heart. Concurrently, physical training can significantly slow-down or even reverse the maladaptive pathologic cardiac remodeling in cardiac diseases, improving heart function. The underlying cellular and molecular mechanisms of the beneficial effects of physical exercise on the heart are still a subject of intensive study. Aerobic activity increases cardiovascular nitric oxide (NO) released mainly through nitric oxidase synthase 3 activity, promoting endothelium-dependent vasodilation, reducing vascular resistance, and lowering blood pressure. On the reverse, an imbalance between increasing free radical production and decreased NO generation characterizes pathologic remodeling, which has been termed the "nitroso-redox imbalance". Besides these classical evidence on the role of NO in cardiac physiology and pathology, accumulating data show that NO regulate different aspects of stem cell biology, including survival, proliferation, migration, differentiation, and secretion of pro-regenerative factors. Concurrently, it has been shown that physical exercise generates physiological remodeling while antagonizes pathologic remodeling also by fostering cardiac regeneration, including new cardiomyocyte formation. This review is therefore focused on the possible link between physical exercise, NO, and stem cell biology in the cardiac regenerative/reparative response to physiological or pathological load. Cellular and molecular mechanisms that generate an exercise-induced cardioprotective phenotype are discussed in regards with myocardial repair and regeneration. Aerobic training can benefit cells implicated in cardiovascular homeostasis and response to damage by NO-mediated pathways that protect stem cells in the hostile environment, enhance their activation and differentiation and, in turn, translate to more efficient myocardial tissue regeneration. Moreover, stem cell preconditioning by and/or local potentiation of NO signaling can be envisioned as promising approaches to improve the post-transplantation stem cell survival and the efficacy of cardiac stem cell therapy.
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Affiliation(s)
- Fabiola Marino
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (F.M.); (M.S.); (L.S.)
| | - Mariangela Scalise
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (F.M.); (M.S.); (L.S.)
| | - Eleonora Cianflone
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (E.C.); (N.S.)
| | - Luca Salerno
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (F.M.); (M.S.); (L.S.)
| | - Donato Cappetta
- Department of Experimental Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (D.C.); (A.D.A.)
| | - Nadia Salerno
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy; (E.C.); (N.S.)
| | - Antonella De Angelis
- Department of Experimental Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (D.C.); (A.D.A.)
| | - Daniele Torella
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (F.M.); (M.S.); (L.S.)
| | - Konrad Urbanek
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy; (F.M.); (M.S.); (L.S.)
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Harnessing the cardiovascular benefits of exercise: are Nrf2 activators useful? SPORTS MEDICINE AND HEALTH SCIENCE 2021; 3:70-79. [PMID: 35782161 PMCID: PMC9219337 DOI: 10.1016/j.smhs.2021.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 01/07/2023] Open
Abstract
The ability of physical activity to ameliorate cardiovascular disease and improve cardiovascular health is well accepted, but many aspects of the molecular mechanisms underlying these benefits are incompletely understood. Exercise increases the levels of reactive oxygen species (ROS) through various mechanisms. This triggers the activation of Nrf2, a redox-sensitive transcription factor activated by increases in oxidative stress. Activation of Nrf2 mitigates oxidative stress by increasing the nuclear transcription of many antioxidant genes while also mediating additional beneficial effects through the cytoprotective nature of Nrf2 signaling. Understanding the transcriptional patterns of Nrf2 caused by exercise can help in the design of pharmacological mimicry of the process in patients who are unable to exercise for various reasons.
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Miranda DP, Alves WEFM, Lopes HHMC, Santana VJ, Bocchi EA, Salemi VMC. Association between right heart dimensions and muscle performance and cardiorespiratory capacity in strength and endurance athletes. TRANSLATIONAL SPORTS MEDICINE 2021. [DOI: 10.1002/tsm2.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Douglas P. Miranda
- Heart Institute (InCor) do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo Sao Paulo Brazil
- Laboratory of Physical Evaluation and Exercise Physiology (LAFFEX) Department of Physical Education University of Barretos (Unifeb) Barretos Brazil
| | | | | | - Vinícius J. Santana
- Laboratory of Physical Evaluation and Exercise Physiology (LAFFEX) Department of Physical Education University of Barretos (Unifeb) Barretos Brazil
| | - Edimar A. Bocchi
- Heart Institute (InCor) do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo Sao Paulo Brazil
| | - Vera Maria C. Salemi
- Heart Institute (InCor) do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo Sao Paulo Brazil
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36
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Sourdon J, Facchin C, Certain A, Viel T, Robin B, Lager F, Marchiol C, Balvay D, Yoganathan T, Favier J, Tharaux PL, Dhaun N, Renault G, Tavitian B. Sunitinib-induced cardiac hypertrophy and the endothelin axis. Am J Cancer Res 2021; 11:3830-3838. [PMID: 33664864 PMCID: PMC7914356 DOI: 10.7150/thno.49837] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/13/2020] [Indexed: 12/16/2022] Open
Abstract
Anti-angiogenics drugs in clinical use for cancer treatment induce cardiotoxic side effects. The endothelin axis is involved in hypertension and cardiac remodelling, and addition of an endothelin receptor antagonist to the anti-angiogenic sunitinib was shown to reduce cardiotoxicity of sunitinib in mice. Here, we explored further the antidote effect of the endothelin receptor antagonist macitentan in sunitinib-treated animals on cardiac remodeling. Methods: Tumor-bearing mice treated per os daily by sunitinib or vehicle were imaged before and after 1, 3 and 6 weeks of treatment by positron emission tomography using [18F]fluorodeoxyglucose and by echocardiography. Non-tumor-bearing animals were randomly assigned to be treated per os daily by vehicle or sunitinib or macitentan or sunitinib+macitentan, and imaged by echocardiography after 5 weeks. Hearts were harvested for histology and molecular analysis at the end of in vivo exploration. Results: Sunitinib treatment increases left ventricular mass and ejection fraction and induces cardiac fibrosis. Sunitinib also induces an early increase in cardiac uptake of [18F]fluorodeoxyglucose, which is significantly correlated with increased left ventricular mass at the end of treatment. Co-administration of macitentan prevents sunitinib-induced hypertension, increase in ejection fraction and cardiac fibrosis, but fails to prevent increase of the left ventricular mass. Conclusion: Early metabolic changes predict sunitinib-induced cardiac remodeling. Endothelin blockade can prevent some but not all cardiotoxic side-effects of sunitinib, in particular left ventricle hypertrophy that appears to be induced by sunitinib through an endothelin-independent mechanism.
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Torrado J, Kowlgi GN, Ramirez RJ, Balderas-Villalobos J, Jovin D, Parker C, Om E, Airapetov S, Kaszala K, Tan AY, Ellenbogen KA, Huizar JF. Eccentric hypertrophy in an animal model of mid- and long-term premature ventricular contraction-induced cardiomyopathy. Heart Rhythm O2 2021; 2:80-88. [PMID: 34113908 PMCID: PMC8183810 DOI: 10.1016/j.hroo.2020.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Tachycardia and heart rate irregularity are proposed triggers of premature ventricular contraction-induced cardiomyopathy (PVC-cardiomyopathy). Bigeminal premature atrial and ventricular contractions (PACs and PVCs) increase heart rate and result in rhythm irregularities but differ in their effects on ventricular synchrony. Comparing chronic bigeminal PACs with PVCs would provide insights into mechanisms of PVC-cardiomyopathy. OBJECTIVE To compare the impact of chronic PACs and PVCs on ventricular hemodynamics, structure, and function. METHODS Pacemakers were implanted in 27 canines to reproduce atrial (PACs, n = 7) or ventricular bigeminy (PVCs, n = 11) for 12 weeks, and compared to sham-operated animals (n = 9). Four additional animals were exposed to long-term bigeminal PVCs (48 weeks). Hemodynamic changes were assessed using a pressure-transducing catheter at baseline and 12 weeks. Cardiac remodeling was monitored by transthoracic echocardiography throughout the 12- and 48-week protocols in the respective groups. RESULTS PVC group demonstrated a significant decrease in left ventricular (LV) ejection fraction and contractility (max dP/dt), impaired LV lusitropy (min dP/dt), and increase in LV dimensions and LV mass at 12 weeks without further deterioration beyond 16 weeks. Despite increased LV mass, relative wall thickness decreased, consistent with eccentric hypertrophy. No significant cardiac remodeling was noted in either sham or PAC groups at 12 weeks. CONCLUSION In contrast to bigeminal PACs, PVCs result in a cardiomyopathy characterized by reduced LV ejection fraction, LV dilation, and eccentric hypertrophy that plateaus between 12 and 16 weeks. The lack of remodeling in chronic PACs suggests that tachycardia and heart rate irregularity do not play a significant role on the development of PVC-cardiomyopathy.
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Affiliation(s)
- Juan Torrado
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia
| | | | - Rafael J. Ramirez
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, Virginia
| | - Jaime Balderas-Villalobos
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, Virginia
| | - Daniel Jovin
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia
| | - Chandler Parker
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia
| | - Evani Om
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, Virginia
| | - Sergei Airapetov
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia
| | - Karoly Kaszala
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia
| | - Alex Y. Tan
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia
| | | | - Jose F. Huizar
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia
- Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, Virginia
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Nakamura K, Fujiwara T, Hoshide S, Ishiyama Y, Taki M, Ozawa S, Kario K. Differences in exercise-induced blood pressure changes between young trained and untrained individuals. J Clin Hypertens (Greenwich) 2021; 23:843-848. [PMID: 33455054 PMCID: PMC8678678 DOI: 10.1111/jch.14177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/10/2020] [Accepted: 12/28/2020] [Indexed: 11/29/2022]
Abstract
There are no studies assessing short‐term blood pressure (BP) changes induced by daily exercise load in young trained individuals. The authors enrolled 25 healthy, trained (mean age 19.7 ± 0.1 years, 36% female) and 26 healthy, untrained (mean age 20.4 ± 0.3 years, 50% female) individuals and measured BP after the Master two‐step test. Among them, 42 individuals underwent echocardiography after BP measurements to assess left ventricular mass index (LVMI). The baseline systolic BP (SBP) levels of trained and untrained individuals were 122.7 ± 2.9 versus 117.4 ± 1.5 mmHg, respectively (p = .016). Trained individuals showed a significant suppression of the SBP increase soon after exercise loads and lower SBP levels at 1, 2, and 3 min after exercise loads compared with untrained individuals. The peak SBP level over the study period was also significantly lower in trained individuals than in untrained individuals: 156.4 ± 3.3 versus 183.7 ± 5.2 mmHg (p < .001). Trained individuals showed significantly higher LVMI compared with untrained individuals: 129.4 versus 101.6 g/m2 (p < .001). These findings demonstrated that trained individuals showed significant suppression of short‐term BP variability in response to by daily exercise loads and prompt SBP recovery from acute exercise loads compared with untrained individuals. Our results would be useful to understand short‐term BPV and LV hypertrophy induced by adaptive responses of the heart to regular exercise loads.
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Affiliation(s)
- Kenji Nakamura
- Department of Healthcare Informatics, Faculty of Health and Welfare, Takasaki University of Health and Welfare, Takasaki, Japan
| | - Takeshi Fujiwara
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Satoshi Hoshide
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Yusuke Ishiyama
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Mizuri Taki
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Seiji Ozawa
- Department of Healthcare Informatics, Faculty of Health and Welfare, Takasaki University of Health and Welfare, Takasaki, Japan
| | - Kazuomi Kario
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
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Neurologic complications of cardiac disease in athletes. HANDBOOK OF CLINICAL NEUROLOGY 2021; 177:269-274. [PMID: 33632446 DOI: 10.1016/b978-0-12-819814-8.00031-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Athletic participation at all levels of proficiency is an encouraged activity. Physicians evaluating athletes are tasked with assessing the benefits and risks of participating in vigorous physical activity and should engage in shared decision making with the athlete. Identifying the neurologic sequelae is an essential part of the assessment that is often not covered. This chapter will review the association of a wide range of cardiac disorders that can be related to or associated with subsequent neurologic sequelae, along with a brief overview of recommendations for management. Prevalent neurological complications of cardiac disease in athletes include stroke and seizures. There are also certain channelopathies that result in concurrent cardiac dysrhythmias and epilepsy. In addition, physiologic cardiac rhythm changes and the athlete's heart are discussed in the context of the differential diagnoses of subsequent cardiac and neurologic disease. The primary objective of this chapter is to prepare the physician for accurate recognition of cardiac disease in athletes that could result in neurologic complications if not diagnosed and managed early on.
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Mercea D, Ianos R, Pop C, Lazar AL, Sitar-Tăut A, Orășan O, Cozma A. The Impact of Obesity on Left Ventricular Hypertrophy and Diastolic Function in Caucasian Children. Metab Syndr Relat Disord 2020; 19:218-224. [PMID: 33296253 DOI: 10.1089/met.2020.0056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Left ventricular hypertrophy (LVH) and diastolic dysfunction are correlated with obesity and hypertension in adult patients, but few studies have investigated the association between obesity itself and left ventricular function in children. The aim of this study was to evaluate the effect of obesity and LVH on left ventricular diastolic function in pediatric subjects compared with children without obesity. Methods: A number of 454 patients from an outpatient cardiology service were enrolled in a prospective study, 33 children with obesity, 20 overweight children, and 401 children without obesity. The subjects were assigned to three groups according to age and school grade. A standardized two-dimensional echocardiography analysis was performed in all children. The evaluated echocardiographic parameters included thickness of the interventricular septum (IVS), thickness of the posterior wall of the left ventricle, and left atrium size. The left ventricular diastolic function was analyzed by the classic pulsed-wave Doppler technique, tissue Doppler technique, and continuous Doppler technique. Results: The number of children with obesity was higher in the school and adolescent groups. The median age of children with obesity was 9 years. The subjects were classified according to blood pressure values in hypertensive, with high-normal blood pressure/prehypertension and with normal blood pressure values. Standard echocardiography showed that children with obesity had significantly increased thickness of the IVS and of the posterior wall compared with nonobesity subjects (P < 0.001). Left ventricular systolic function was preserved in both groups. Diastolic function was normal in the obesity group and in the non-obesity group, respectively. Conclusions: The results of this study demonstrate that childhood obesity is associated with significant changes in the myocardial structure consisting of LVH, but we did not find an early alteration in the left ventricular diastolic function of the subjects with obesity compared with patients with a normal weight.
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Affiliation(s)
- Delia Mercea
- Emergency County Hospital "Dr Constantin Opris", Baia Mare, Romania
| | - Raluca Ianos
- Emergency County Hospital "Dr Constantin Opris", Baia Mare, Romania
| | - Călin Pop
- Emergency County Hospital "Dr Constantin Opris", Baia Mare, Romania
| | - Andrada-Luciana Lazar
- Department of Dermatology and "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Adela Sitar-Tăut
- Department of Internal Medicine, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Olga Orășan
- Department of Internal Medicine, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Angela Cozma
- Department of Internal Medicine, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Linear periodization of strength training in blocks attenuates hypertension and diastolic dysfunction with normalization of myocardial collagen content in spontaneously hypertensive rats. J Hypertens 2020; 38:73-81. [PMID: 31335510 DOI: 10.1097/hjh.0000000000002188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND METHOD This study evaluated the effects of a linear block strength training programme on the parameters of cardiac remodelling in spontaneously hypertensive rats. Thirty-nine rats were equally distributed in four groups: normotensive sedentary, normotensive trained, hypertensive sedentary and hypertensive trained. The strength training protocol was organized in three mesocycles of 4 weeks, with an increase in the training load organized in a linear fashion for each block, considering the weight established in the maximum loaded load test. The following parameters were evaluated: ventricular function assessed by echocardiogram, caudal blood pressure, ventricular haemodynamics and cardiac masses. Two-way analysis of variance was used to determine the differences between the group and time. RESULTS After 12 weeks of training, the hypertensive trained group presented the following results: increased muscle strength, reduced blood pressure, reduced heart rate, isovolumetric relaxation time and total collagen content, with increased cardiac function, without promoting changes in the mass and nuclear volume of cardiomyocytes. Also, blood pressure reduction seems to be associated with both muscle strength adjustments and total load progress. CONCLUSION The findings of this study showed that the training programme carried out attenuated systemic arterial pressure and preserved the ventricular function of spontaneously hypertensive rats without cardiac mass change.
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Changes in gene expression of lactate carriers (MCT1 and CD147) in cardiac muscle of diabetic male rats: the effect of dichloroacetate and endurance training. UKRAINIAN BIOCHEMICAL JOURNAL 2020. [DOI: 10.15407/ubj92.05.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Shookster D, Lindsey B, Cortes N, Martin JR. Accuracy of Commonly Used Age-Predicted Maximal Heart Rate Equations. INTERNATIONAL JOURNAL OF EXERCISE SCIENCE 2020; 13:1242-1250. [PMID: 33042384 PMCID: PMC7523886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Age-predicted maximal heart rate (APMHR) is an essential measure for healthcare professionals in determining cardiovascular response to exercise testing, exertion, and prescription. Although multiple APMHR prediction equations have been validated for specific populations, the accuracy of each within a general population requires testing. We aimed to determine which APMHR equation (Fox, Gellish, Gulati, Tanaka, Arena, Astrand, Nes, Fairbarn) most accurately predicts max heart rate (HRmax) in a general population. HRmax from 99 graded treadmill exercise tests (GXT) were measured. GXTs ended upon volitional fatigue and were only included for analysis if RER > 1.10. Individual paired t-test were performed to determine if significant differences existed between measured and predicted HRmax, along with root mean square errors for each equation. Bland-Altman plots were constructed to determine agreement between equations and measured HRmax. Significant differences between measured and predicted HRmax were found for the Gulati, Astrand, Nes, and Fairbarn (male) equations (p < 0.05). Bland-Altman plots revealed wide limits of agreement for all nine APMHR equations, suggesting poor agreement between measured and predicted HRmax. Proportional bias indicates that prediction equations under and overestimated HRmax in individuals with lower and higher measured HRmax, respectively, with the exception of the Fox equation. All equations used in this study show poor agreement between measured HRmax and APMHR. The Fox equation may represent the best option for a general population as it is less likely to under or overestimate based on individual HRmax. Individuals should use data from GXTs to determine HRmax when applicable to ensure accuracy.
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Affiliation(s)
- Daniel Shookster
- Sports Medicine Assessment and Research Testing (SMART) Laboratory, School of Kinesiology, George Mason University, Fairfax, VA, United States
| | - Bryndan Lindsey
- Sports Medicine Assessment and Research Testing (SMART) Laboratory, School of Kinesiology, George Mason University, Fairfax, VA, United States
| | - Nelson Cortes
- Sports Medicine Assessment and Research Testing (SMART) Laboratory, School of Kinesiology, George Mason University, Fairfax, VA, United States
| | - Joel R Martin
- Sports Medicine Assessment and Research Testing (SMART) Laboratory, School of Kinesiology, George Mason University, Fairfax, VA, United States
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Dawkins TG, Curry BA, Drane AL, Lord RN, Richards C, Brown M, Pugh CJA, Lodge F, Yousef Z, Stembridge M, Shave RE. Stimulus-specific functional remodeling of the left ventricle in endurance and resistance-trained men. Am J Physiol Heart Circ Physiol 2020; 319:H632-H641. [PMID: 32772543 DOI: 10.1152/ajpheart.00233.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Left ventricular (LV) structural remodeling following athletic training has been evidenced through training-specific changes in wall thickness and geometry. Whether the LV response to changes in hemodynamic load also adapts in a training-specific manner is unknown. Using echocardiography, we examined LV responses of endurance-trained (n = 15), resistance-trained (n = 14), and nonathletic men (n = 13) to 1) 20, 40, and 60% one repetition-maximum (1RM), leg-press exercise and 2) intravascular Gelofusine infusion (7 mL/kg) with passive leg raise. While resting heart rate was lower in endurance-trained participants versus controls (P = 0.001), blood pressure was similar between groups. Endurance-trained individuals had lower wall thickness but greater LV mass relative to body surface area versus controls, with no difference between resistance-trained individuals and controls. Leg press evoked a similar increase in blood pressure; however, resistance-trained participants preserved stroke volume (SV; -3 ± 8%) versus controls at 60% 1RM (-15 ± 7%, P = 0.001). While the maintenance of SV was related to the change in longitudinal strain across all groups (R = 0.537; P = 0.007), time-to-peak strain was maintained in resistance-trained but delayed in endurance-trained individuals (1 vs. 12% delay; P = 0.021). Volume infusion caused a similar increase in end-diastolic volume (EDV) and SV across groups, but leg raise further increased EDV only in endurance-trained individuals (5 ± 5 to 8 ± 5%; P = 0.018). Correlation analysis revealed a relationship between SV and longitudinal strain following infusion and leg raise (R = 0.334, P = 0.054); however, we observed no between-group differences in longitudinal myocardial mechanics. In conclusion, resistance-trained individuals better maintained SV during pressure loading, whereas endurance-trained individuals demonstrated greater EDV reserve during volume loading. These data provide novel evidence of training-specific LV functional remodeling.NEW & NOTEWORTHY Training-specific functional remodeling of the LV in response to different loading conditions has been recently suggested, but not experimentally tested in the same group of individuals. Our data provide novel evidence of a dichotomous, training-specific LV adaptive response to hemodynamic pressure or volume loading.
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Affiliation(s)
- Tony G Dawkins
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Bryony A Curry
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Aimee L Drane
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Rachel N Lord
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Cory Richards
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Megan Brown
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Christopher J A Pugh
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Freya Lodge
- Department of Cardiology, University Hospital of Wales, Cardiff, United Kingdom
| | - Zaheer Yousef
- Department of Cardiology, University Hospital of Wales, Cardiff, United Kingdom
| | - Michael Stembridge
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Rob E Shave
- Centre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, Canada
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Mester-Tonczar J, Winkler J, Einzinger P, Hasimbegovic E, Kastner N, Lukovic D, Zlabinger K, Spannbauer A, Traxler D, Batkai S, Thum T, Gyöngyösi M. Association between Circular RNA CDR1as and Post-Infarction Cardiac Function in Pig Ischemic Heart Failure: Influence of the Anti-Fibrotic Natural Compounds Bufalin and Lycorine. Biomolecules 2020; 10:E1180. [PMID: 32823854 PMCID: PMC7463784 DOI: 10.3390/biom10081180] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/07/2020] [Accepted: 08/11/2020] [Indexed: 12/11/2022] Open
Abstract
Anti-fibrotic therapies are of increasing interest to combat cardiac remodeling and heart failure progression. Recently, anti-fibrotic circular RNAs (circRNAs) have been identified in human and rodent cardiac tissue. In vivo (rodent) experiments proved cardiac anti-fibrotic effects of the natural compounds bufalin and lycorine by downregulating miRNA-671-5p, associated with a theoretic increase in the tissue level of circRNA CDR1as. Accordingly, we hypothesized that both anti-fibrotic drugs may inhibit focal myocardial fibrosis of the remodeled left ventricle (LV) also in a translational large animal model of heart failure (HF). Domestic pigs were repeatedly treated with subcutaneous injections of either bufalin, lycorine, or saline, (n = 5/group) between days 7-21 post acute myocardial infarction (AMI). At the 2-month follow-up, both bufalin and lycorine led to significantly reduced cardiac fibrosis. Bufalin treatment additionally led to smaller end-diastolic volumes, higher LV ejection fraction (EF), and increased expression of CDR1as of the AMI region. Elevated tissue levels of the circRNA CDR1as in the AMI region of the pig heart correlated significantly with LV and right ventricular EF, LV stroke volume, and negatively with infarct size. In conclusion, we successfully identified the circRNA CDR1as in pig hearts and show a significant association with improved LV and RV function by anti-fibrotic therapies in a translational animal model of HF.
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Affiliation(s)
- Julia Mester-Tonczar
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Johannes Winkler
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Patrick Einzinger
- Institute of Information Systems Engineering, Research Unit of Information and Software Engineering, Vienna University of Technology, 1040 Vienna, Austria;
| | - Ena Hasimbegovic
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Nina Kastner
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Dominika Lukovic
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Katrin Zlabinger
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Andreas Spannbauer
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Denise Traxler
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
| | - Sandor Batkai
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, 30625 Hannover, Germany; (S.B.); (T.T.)
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, 30625 Hannover, Germany; (S.B.); (T.T.)
- REBIRTH Center of Translational Regenerative Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Mariann Gyöngyösi
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (J.W.); (E.H.); (N.K.); (D.L.); (K.Z.); (A.S.); (D.T.)
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Abstract
Taurine is a ubiquitous β-amino acid that plays an essential role in ensuring normal mitochondrial and myocardial function. In the mitochondria, taurine reacts with a tRNA forming a 5-taurinomethyluridine conjugate that primarily regulates the biosynthesis of the mitochondria encoded protein, ND6, which serves as a subunit of complex I of the respiratory chain. Impaired formation of the taurine conjugate reduces activity of complex I and plays a central role in the pathophysiology of the mitochondrial disease MELAS (myopathy, encephalopathy, lactic acidosis and stroke-like episodes). The restoration of mitochondrial levels of the taurine conjugate enhances electron flux through the respiratory chain, thereby preventing at least some of the symptoms of MELAS. Taurine therapy also diminishes the severity of congestive heart failure, an observation that led to its approval for the treatment of congestive heart failure in Japan. The review article discusses the role of defective calcium handling, reduced ATP generation, enhanced oxidative stress and apoptosis in the development of taurine-deficient cardiomyopathy. Some patients suffering from congestive heart failure are taurine-deficient, an observation supporting the hypothesis that low taurine levels contribute to the severity of heart failure. Thus, mishandling of taurine leads to mitochondrial dysfunction, which is involved in the development of both MELAS and congestive heart failure.
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Fathi M, Gharakhanlou R, Rezaei R. The Changes of Heart miR-1 and miR-133 Expressions following Physiological Hypertrophy Due to Endurance Training. CELL JOURNAL 2020; 22:133-140. [PMID: 32779443 PMCID: PMC7481891 DOI: 10.22074/cellj.2020.7014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 10/12/2019] [Indexed: 11/05/2022]
Abstract
Objective MicroRNAs (miRNAs) play a key role in the development of the heart. Recent studies have shown that miR-
1 and miR-133 are key regulators of cardiac hypertrophy. Therefore, we aimed to evaluate the effect of an endurance
training (ET) program on the expressions of these miRNAs and their transcriptional network.
Materials and Methods In this experimental study, cardiac hypertrophy was induced by 14 weeks of ET for 1 hour per
day, 6 days per week at 75% VO2 max). The rats (221 ± 23 g) in the experimental (n=7) and control (n=7) groups were
anesthetized to evaluate heart morphology changes by echocardiography. Next, we evaluated expressions of miR-1
and miR-133, and heart and neural crest derivatives express 2 (Hand2), Mef2c, histone deacetylase 4 (Hdac4) and
serum response factor (Srf) gene expressions by real-time polymerase chain reaction (PCR). Finally, the collected data
were evaluated by the independent t test to determine differences between the groups
Results The echocardiography result confirmed physiological hypertrophy in the experimental group that underwent ET as
shown by the increased left ventricular weight/body surface area (LVW/BSA) (P=0.004), LVW/body weight (BW) (P=0.011),
left ventricular diameter end-diastolic (LVDd) (P=0.003), and improvements in heart functional indexes such as fractional
shortness (FS) (P=0.036) and stroke volume (SV) (P=0.002). There were significant increases in the expressions of miR-1
(P=0.001) and miR-133 (P=0.004). The expressions of Srf, Hdac4, and Hand2 genes significantly increased (P<0.001) in the
experimental group Compared with the control group. The expression of Mef2c did not significantly change.
Conclusion The expressions of miR-1 and miR-133 and their target genes appeared to be involved in physiological
hypertrophy induced by ET in these rats.
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Affiliation(s)
- Mohammad Fathi
- Department of Physical Education and Sport Sciences, Faculty of Humanities Sciences, Lorestan University, Khorramabad, Iran Electronic Address:
| | - Reza Gharakhanlou
- Department of Physical Education and Sport Sciences, Faculty of Humanities Sciences, Tarbiyat Modares University, Tehran, Iran
| | - Razieh Rezaei
- Faculty of Physical Education and Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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48
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A Vegan Athlete's Heart-Is It Different? Morphology and Function in Echocardiography. Diagnostics (Basel) 2020; 10:diagnostics10070477. [PMID: 32674452 PMCID: PMC7400409 DOI: 10.3390/diagnostics10070477] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/02/2020] [Accepted: 07/10/2020] [Indexed: 12/24/2022] Open
Abstract
Plant-based diets are a growing trend, including among athletes. This study compares the differences in physical performance and heart morphology and function between vegan and omnivorous amateur runners. A study group and a matched control group were recruited comprising N = 30 participants each. Eight members of the study group were excluded, leaving N = 22 participants. Members of both groups were of similar age and trained with similar frequency and intensity. Vegans displayed a higher VO2max (54.08 vs. 50.10 mL/kg/min, p < 0.05), which correlated positively with carbohydrate intake (ρ = 0.52) and negatively with MUFA (monounsaturated fatty acids) intake (ρ = −0.43). The vegans presented a more eccentric form of remodelling with greater left ventricular end diastolic diameter (LVEDd, 2.93 vs. 2.81 cm/m2, p = 0.04) and a lower relative wall thickness (RWT, 0.39 vs. 0.42, p = 0.04) and left ventricular mass (LVM, 190 vs. 210 g, p = 0.01). The left ventricular mass index (LVMI) was similar (108 vs. 115 g/m2, p = NS). Longitudinal strain was higher in the vegan group (−20.5 vs. −19.6%, p = 0.04), suggesting better systolic function. Higher E-wave velocities (87 vs. 78 cm/s, p = 0.001) and E/e′ ratios (6.32 vs. 5.6, p = 0.03) may suggest better diastolic function in the vegan group. The results demonstrate that following a plant-based diet does not impair amateur athletes’ performance and influences both morphological and functional heart remodelling. The lower RWT and better LV systolic and diastolic function are most likely positive echocardiographic findings.
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Callender NA, Hart PW, Ramchandani GM, Chaggar PS, Porter AJ, Billington CP, Tiller NB. The exercise pressor response to indoor rock climbing. J Appl Physiol (1985) 2020; 129:404-409. [PMID: 32644913 DOI: 10.1152/japplphysiol.00357.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This paper assessed the blood pressure, heart rate, and mouth-pressure responses to indoor rock climbing (bouldering) and associated training exercises. Six well-trained male rock climbers (mean ± SD age, 27.7 ± 4.7 yr; stature, 177.7 ± 7.3 cm; mass, 69.8 ± 12.1 kg) completed two boulder problems (6b and 7a+ on the Fontainebleau Scale) and three typical training exercises [maximum voluntary contraction (MVC) isometric pull-up, 80% MVC pull-ups to fatigue, and campus board to fatigue]. Blood pressure and heart rate were measured via an indwelling femoral arterial catheter, and mouth pressure via a mouthpiece manometer. Bouldering evoked a peak systolic pressure of 200 ± 17 mmHg (44 ± 21% increase from baseline), diastolic pressure of 142 ± 26 mmHg (70 ± 32% increase), mean arterial pressure of 163 ± 18 mmHg (56 ± 25% increase), and heart rate of 176 ± 22 beats/min (76 ± 35% increase). The highest systolic pressure was observed during the campus board exercise (218 ± 33 mmHg), although individual values as high as 273/189 mmHg were recorded. Peak mouth pressure during climbing was 31 ± 46 mmHg, and this increased independently of climb difficulty. We concluded that indoor rock climbing and associated exercises evoke a substantial pressor response resulting in high blood pressures that may exceed those observed during other upper-limb resistance exercises. These findings may inform risk stratification for climbers.NEW & NOTEWORTHY This case study provides original data on the exercise pressor response to indoor rock climbing and associated training exercises through the use of an indwelling femoral arterial catheter. Our subjects exhibited systolic/diastolic blood pressures that exceeded values often reported during upper-limb resistance exercise. Our data extend the understanding of the cardiovascular stress associated with indoor rock climbing.
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Affiliation(s)
- Nigel A Callender
- Department of Anaesthetics, Northumbria Specialist Emergency Care Hospital, Cramlington, United Kingdom.,School of Clinical and Applied Sciences, Leeds Beckett University, Leeds, United Kingdom
| | - Peter W Hart
- Department of Anaesthetics and Critical Care, Bradford Teaching Hospitals Foundation Trust, Bradford, United Kingdom
| | - Girish M Ramchandani
- Academy of Sport and Physical Activity, Sheffield Hallam University, Sheffield, United Kingdom
| | | | - Andrew J Porter
- Newcastle University Protein and Proteome Analysis, Newcastle University, Newcastle, United Kingdom
| | - Charlie P Billington
- Department of Anaesthetics, Dumfries and Galloway Royal Infirmary, Dumfries, United Kingdom
| | - Nicholas B Tiller
- Institute of Respiratory Medicine and Exercise Physiology, Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, California
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Weber A, L Büttner A, Rellecke P, Petrov G, Albert A, Sixt SU, Lichtenberg A, Akhyari P. Osteopontin as novel biomarker for reversibility of pressure overload induced left ventricular hypertrophy. Biomark Med 2020; 14:513-523. [PMID: 32462909 DOI: 10.2217/bmm-2019-0410] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The aim of this study was to evaluate the prognostic value of osteopontin (OPN) as a marker for left ventricular (LV) hypertrophy and its reversibility after surgical aortic valve replacement (SAVR). Patients & methods: Echocardiographic data and OPN plasma levels of 149 consecutive patients undergoing SAVR were obtained preoperatively and 3 months postoperatively. OPN was measured by Quantikine Human OPN immunoassay. Results: There was a significant correlation between higher OPN plasma levels and lower LV-mass regression. In patients receiving SAVR combined with coronary artery bypass grafting, high OPN plasma levels were also an indicator for eccentric hypertrophy phenotype. Conclusion: OPN may be a useful indicator for LV hypertrophy phenotype and could have a prognostic value to estimate LV-mass regression after SAVR.
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Affiliation(s)
- Andreas Weber
- Department of Cardiac Surgery, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Annalena L Büttner
- Department of Cardiac Surgery, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Philipp Rellecke
- Department of Cardiac Surgery, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Georgi Petrov
- Department of Cardiac Surgery, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Alexander Albert
- Department of Cardiac Surgery, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, 40225 Düsseldorf, Germany.,Department of Cardiac Surgery, Dortmund 44137, Germany
| | - Stephan U Sixt
- Department of Anaesthesiology, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, Düsseldorf 40225, Germany
| | - Artur Lichtenberg
- Department of Cardiac Surgery, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Payam Akhyari
- Department of Cardiac Surgery, Heinrich-Heine-University, Medical Faculty, Moorenstraße 5, 40225 Düsseldorf, Germany
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