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Salatzki J, Mohr I, Heins J, Cerci MH, Ochs A, Paul O, Riffel J, André F, Hirschberg K, Müller-Hennessen M, Giannitsis E, Friedrich MG, Merle U, Weiss KH, Katus HA, Ochs M. The impact of Wilson disease on myocardial tissue and function: a cardiovascular magnetic resonance study. J Cardiovasc Magn Reson 2021; 23:84. [PMID: 34162411 PMCID: PMC8223377 DOI: 10.1186/s12968-021-00760-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 04/27/2021] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Systemic effects of altered serum copper processing in Wilson Disease (WD) might induce myocardial copper deposition and consequently myocardial dysfunction and structural remodeling. This study sought to investigate the prevalence, manifestation and predictors of myocardial tissue abnormalities in WD patients. METHODS We prospectively enrolled WD patients and an age-matched group of healthy individuals. We applied cardiovascular magnetic resonance (CMR) to analyze myocardial function, strain, and tissue characteristics. A subgroup analysis of WD patients with predominant neurological (WD-neuro+) or hepatic manifestation only (WD-neuro-) was performed. RESULTS Seventy-six patients (37 years (27-49), 47% women) with known WD and 76 age-matched healthy control subjects were studied. The prevalence of atrial fibrillation in WD patients was 5% and the prevalence of symptomatic heart failure was 2.6%. Compared to healthy controls, patients with WD had a reduced left ventricular global circumferential strain (LV-GCS), and also showed abnormalities consistent with global and regional myocardial fibrosis. WD-neuro+ patients presented with more severe structural remodeling and functional impairment when compared to WD-neuro- patients. CONCLUSIONS In a large cohort, WD was not linked to a distinct cardiac phenotype except CMR indexes of myocardial fibrosis. More research is warranted to assess the prognostic implications of these findings. TRIAL REGISTRATION This trial is registered at the local institutional ethics committee (S-188/2018).
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Affiliation(s)
- Janek Salatzki
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany.
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany.
| | - Isabelle Mohr
- Department of Gastroenterology, Heidelberg University Hospital, Heidelberg, Germany
| | - Jannick Heins
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
| | - Mert H Cerci
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
| | - Andreas Ochs
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Oliver Paul
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
| | - Johannes Riffel
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Florian André
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | | | - Matthias Müller-Hennessen
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Evangelos Giannitsis
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- Semmelweis University Heart and Vascular Center, Budapest, Hungary
| | - Matthias G Friedrich
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- Semmelweis University Heart and Vascular Center, Budapest, Hungary
- Division of Cardiology, Departments of Medicine and Diagnostic Radiology, Mc-Gill University Health Centre, Montreal, Canada
| | - Uta Merle
- Department of Gastroenterology, Heidelberg University Hospital, Heidelberg, Germany
| | - Karl Heinz Weiss
- Department of Gastroenterology, Heidelberg University Hospital, Heidelberg, Germany
- Department of Internal Medicine, Salem Medical Center, Heidelberg, Germany
| | - Hugo A Katus
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
| | - Marco Ochs
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner site Heidelberg, Heidelberg, Germany
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Makino N, Ganguly P, Elimban V, Dhalla NS. Sarcolemmal Alterations in Unloaded Rat Heart after Heterotopic Transplantation. Int J Angiol 2018; 27:196-201. [PMID: 30410290 DOI: 10.1055/s-0038-1673646] [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: 10/28/2022] Open
Abstract
Following heterotopic transplantation, the rat heart undergoes atrophy and exhibits delayed cardiac relaxation without any changes in contraction and systolic Ca 2+ transients. Furthermore, the sarcoplasmic reticular Ca 2+ uptake and release activities were reduced and Ca 2+ influx through L-type Ca 2+ channels was increased in the atrophied heart. Since Ca 2+ movements at sarcolemma are intimately involved in the regulation of intracellular Ca 2+ concentration, the present study was undertaken to test if sarcolemma plays any role to maintain cardiac function in the atrophied heart.The characteristics of sarcolemmal Ca 2+ pump and Na + -Ca 2+ exchange activities were examined in 8 weeks heterotopically isotransplanted rat hearts which did not support hemodynamic load and underwent atrophy. Sarcolemmal ATP (adenosine triphosphate)-dependent Ca 2+ uptake and Ca 2+ -stimulated ATPase (adenosine triphosphatase) activities were increased without any changes in Na + -K + ATPase activities in the transplanted hearts. Although no alterations in the Na + -dependent Ca 2+ uptake were evident, Na + -induced Ca 2+ release was increased in the transplanted heart sarcolemmal vesicles. The increase in Na + -induced Ca 2+ release was observed at different times of incubation as well as at 5, 20, and 40 mM Na + . The sarcolemma from transplanted hearts also showed higher contents of phosphatidic acid, sphingomyelin, and cholesterol.These results indicate that increases in the sarcolemmal, Ca 2+ transport activities in unloaded heart may provide an insight into adaptive mechanism to maintain normal contractile behavior of the atrophic heart.
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Affiliation(s)
- Naoki Makino
- Department of Molecular and Clinical Gerontology, Medical Institute of the Bioregulation, Kyushu University, Oita, Japan
| | - Paul Ganguly
- Department of Anatomy, College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia
| | - Vijayan Elimban
- Department of Physiology and Pathophysiology, Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Canada
| | - Naranjan S Dhalla
- Department of Physiology and Pathophysiology, Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, University of Manitoba, Winnipeg, Canada
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Ton AT, Biet M, Delabre JF, Morin N, Dumaine R. In-utero exposure to nicotine alters the development of the rabbit cardiac conduction system and provides a potential mechanism for sudden infant death syndrome. Arch Toxicol 2017; 91:3947-3960. [PMID: 28593499 DOI: 10.1007/s00204-017-2006-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/01/2017] [Indexed: 01/06/2023]
Abstract
In-utero exposure to tobacco smoke remains the highest risk factor for sudden infant death syndrome (SIDS). To alleviate the risks, nicotine replacement therapies are often prescribed to women who wish to quit smoking during their pregnancy. Cardiac arrhythmias is considered the final outcome leading to sudden death. Our goal in this study was to determine if exposing rabbit fetus to nicotine altered the cardiac conduction system of newborn kittens in a manner susceptible to cause SIDS. Using neuronal markers and a series of immunohistological and electrophysiological techniques we found that nicotine delayed the development of the cardiac pacemaker center (sinoatrial node) and decreased its innervation. At the molecular level, nicotine favored the expression of cardiac sodium channels with biophysical properties that will tend to slow heart rate and diminish electrical conduction. Our results show that alterations of the cardiac sodium current may contribute to the bradycardia, conduction disturbances and other cardiac arrhythmias often associated to SIDS and raise awareness on the use of replacement therapy during pregnancy.
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Affiliation(s)
- Anh Tuan Ton
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001 12th ave, Sherbrooke, QC, Canada
- Montreal Heart Institute, University of Montreal, Montréal, QC, Canada
| | - Michael Biet
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001 12th ave, Sherbrooke, QC, Canada
| | - Jean-Francois Delabre
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001 12th ave, Sherbrooke, QC, Canada
| | - Nathalie Morin
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001 12th ave, Sherbrooke, QC, Canada
| | - Robert Dumaine
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001 12th ave, Sherbrooke, QC, Canada.
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Biet M, Morin N, Benrezzak O, Naimi F, Bellanger S, Baillargeon JP, Chouinard L, Gallo-Payet N, Carpentier AC, Dumaine R. Lasting alterations of the sodium current by short-term hyperlipidemia as a mechanism for initiation of cardiac remodeling. Am J Physiol Heart Circ Physiol 2014; 306:H291-7. [DOI: 10.1152/ajpheart.00715.2013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Clinical and animal studies indicate that increased fatty acid delivery to lean tissues induces cardiac electrical remodeling and alterations of cellular calcium homeostasis. Since this may represent a mechanism initiating cardiac dysfunction during establishment of insulin resistance and diabetes or anaerobic cardiac metabolism (ischemia), we sought to determine if short-term exposure to high plasma concentration of fatty acid in vivo was sufficient to alter the cardiac sodium current ( INa) in dog ventricular myocytes. Our results show that delivery of triglycerides and nonesterified fatty acids by infusion of Intralipid + heparin (IH) for 8 h increased the amplitude of INa by 43% and shifted its activation threshold by −5 mV, closer to the resting membrane potential. Steady-state inactivation (availability) of the channels was reduced by IH with no changes in recovery from inactivation. As a consequence, INa “window” current, a strong determinant of intracellular Na+ and Ca2+ concentrations, was significantly increased. The results indicate that increased circulating fatty acids alter INa gating in manners consistent with an increased cardiac excitability and augmentation of intracellular calcium. Moreover, these changes could still be measured after the dogs were left to recover for 12 h after IH perfusion, suggesting lasting changes in INa. Our results indicate that fatty acids rapidly induce cardiac remodeling and suggest that this process may be involved in the development of cardiac dysfunctions associated to insulin resistance and diabetes.
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Affiliation(s)
- M. Biet
- Department of Physiology and Biophysics, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
| | - N. Morin
- Department of Physiology and Biophysics, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
| | - O. Benrezzak
- Department of Medecine (Endocrinology), Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - F. Naimi
- Department of Physiology and Biophysics, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
| | - S. Bellanger
- Department of Physiology and Biophysics, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
| | - J. P. Baillargeon
- Department of Medecine (Endocrinology), Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - L. Chouinard
- Department of Medecine (Endocrinology), Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - N. Gallo-Payet
- Department of Medecine (Endocrinology), Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - A. C. Carpentier
- Department of Medecine (Endocrinology), Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - R. Dumaine
- Department of Physiology and Biophysics, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
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Missihoun C, Zisa D, Shabbir A, Lin H, Lee T. Myocardial oxidative stress, osteogenic phenotype, and energy metabolism are differentially involved in the initiation and early progression of delta-sarcoglycan-null cardiomyopathy. Mol Cell Biochem 2008; 321:45-52. [PMID: 18726675 DOI: 10.1007/s11010-008-9908-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2008] [Accepted: 08/19/2008] [Indexed: 12/11/2022]
Abstract
Dilated cardiomyopathy (DCM) is a common cause of heart failure, and identification of early pathogenic events occurring prior to the onset of cardiac dysfunction is of mechanistic, diagnostic, and therapeutic importance. The work characterized early biochemical pathogenesis in TO2 strain hamsters lacking delta-sarcoglycan. Although the TO2 hamster heart exhibits normal function at 1 month of age (presymptomatic stage), elevated levels of myeloperoxidase, monocyte chemotactic protein-1, malondialdehyde, osteopontin, and alkaline phosphatase were evident, indicating the presence of inflammation, oxidative stress, and osteogenic phenotype. These changes were localized primarily to the myocardium. Derangement in energy metabolism was identified at the symptomatic stage (4 month), and is marked by attenuated activity and expression of pyruvate dehydrogenase E1 subunit, which catalyzes the rate-limiting step in aerobic glucose metabolism. Thus, this study illustrates differential involvement of oxidative stress, osteogenic phenotype, and glucose metabolism in the initiation and early progression of delta-sarcoglycan-null DCM.
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Affiliation(s)
- Comlan Missihoun
- Department of Biochemistry and Center for Research in Cardiovascular Medicine, University at Buffalo, Buffalo, NY 14214, USA
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Saini HK, Machackova J, Dhalla NS. Role of reactive oxygen species in ischemic preconditioning of subcellular organelles in the heart. Antioxid Redox Signal 2004; 6:393-404. [PMID: 15025941 DOI: 10.1089/152308604322899468] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Ischemic preconditioning (IPC) is an endogenous adaptive mechanism and is manifested by early and delayed phases of cardioprotection. Brief episodes of ischemia-reperfusion during IPC cause some subtle functional and structural alterations in sarcolemma, mitochondria, sarcoplasmic reticulum, myofibrils, glycocalyx, as well as nucleus, which render these subcellular organelles resistant to subsequent sustained ischemia-reperfusion insult. These changes occur in functional groups of various receptors, cation transporters, cation channels, and contractile and other proteins, and may explain the initial effects of IPC. On the other hand, induction of various transcriptional factors occurs to alter gene expression and structural changes in subcellular organelles and may be responsible for the delayed effects of IPC. Reactive oxygen species (ROS), which are formed during the IPC period, may cause these changes directly and indirectly and act as a trigger of IPC-induced cardioprotection. As ROS may be one of the several triggers proposed for IPC, this discussion is focused on the current knowledge of both ROS-dependent and ROS-independent mechanisms of IPC. Furthermore, some events, which are related to functional preservation of subcellular organelles, are described for a better understanding of the IPC phenomenon.
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Affiliation(s)
- Harjot K Saini
- Institute of Cardiovascular Sciences, St. Boniface General Hospital Research Centre, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
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Tappia PS, Hata T, Hozaima L, Sandhu MS, Panagia V, Dhalla NS. Role of Oxidative Stress in Catecholamine-Induced Changes in Cardiac Sarcolemmal Ca2+ Transport. Arch Biochem Biophys 2001; 387:85-92. [PMID: 11368187 DOI: 10.1006/abbi.2000.2234] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Although an excessive amount of circulating catecholamines is known to induce cardiomyopathy, the mechanisms are poorly understood. This study was undertaken to investigate the role of oxidative stress in catecholamine-induced heart dysfunction. Treatment of rats for 24 h with a high dose (40 mg/kg) of a synthetic catecholamine, isoproterenol, resulted in increased left ventricular end diastolic pressure, depressed rates of pressure development, and pressure decay as well as increased myocardial Ca2+ content. The increased malondialdehyde content, as well as increased formation of conjugated dienes and low glutathione redox ratio were also observed in hearts from animals injected with isoproterenol. Furthermore, depressed cardiac sarcolemmal (SL) ATP-dependent Ca2+ uptake, Ca2+-stimulated ATPase activity, and Na+-dependent Ca2+ accumulation were detected in experimental hearts. All these catecholamine-induced changes in the heart were attenuated by pretreatment of animals with vitamin E, a well-known antioxidant (25 mg/kg/day for 2 days). Depressed cardiac performance, increased myocardial Ca2+ content, and decreased SL ATP-dependent, and Na+-dependent Ca2+ uptake activities were also seen in the isolated rat hearts perfused with adrenochrome, a catecholamine oxidation product (10 to 25 microg/ml). Incubation of SL membrane with different concentrations of adrenochrome also decreased the ATP-dependent and Na+-dependent Ca2+ uptake activities. These findings suggest the occurrence of oxidative stress, which may depress the SL Ca2+ transport and result in the development intracellular Ca2+ overload and heart dysfunction in catecholamine-induced cardiomyopathy.
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Affiliation(s)
- P S Tappia
- St. Boniface General Hospital Research Centre, Department of Human Anatomy & Cell Science, Faculty of Medicine, University of Manitoba, Winnipeg, Canada.
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Brechler V, Pavoine C, Lotersztajn S, Garbarz E, Pecker F. Activation of Na+/Ca2+ exchange by adenosine in ewe heart sarcolemma is mediated by a pertussis toxin-sensitive G protein. J Biol Chem 1990. [DOI: 10.1016/s0021-9258(17)44839-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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