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Chen G, Douglas HF, Li Z, Cleveland WJ, Balzer C, Yannopolous D, Chen IYL, Obal D, Riess ML. Cardioprotection by Poloxamer 188 is Mediated through Increased Endothelial Nitric Oxide Production. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.18.593838. [PMID: 38826479 PMCID: PMC11142105 DOI: 10.1101/2024.05.18.593838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Ischemia/reperfusion (I/R) injury significantly contributes to the morbidity and mortality associated with cardiac events. Poloxamer 188 (P188), a nonionic triblock copolymer, has been proposed to mitigate I/R injury by stabilizing cell membranes. However, the underlying mechanisms remain incompletely understood, particularly concerning endothelial cell function and nitric oxide (NO) production. We employed human induced pluripotent stem cell (iPSC)-derived cardiomyocytes (CMs) and endothelial cells (ECs) to elucidate the effects of P188 on cellular survival, function, and NO secretion under simulated I/R conditions. iPSC-CMs contractility and iPSC-ECs' NO production were assessed following exposure to P188. Further, an isolated heart model using Brown Norway rats subjected to I/R injury was utilized to evaluate the ex-vivo cardioprotective effects of P188, examining cardiac function and NO production, with and without the administration of a NO inhibitor. In iPSC-derived models, P188 significantly preserved CM contractile function and enhanced cell viability after hypoxia/reoxygenation. Remarkably, P188 treatment led to a pronounced increase in NO secretion in iPSC-ECs, a novel finding demonstrating endothelial protective effects beyond membrane stabilization. In the rat isolated heart model, administration of P188 during reperfusion notably improved cardiac function and reduced I/R injury markers. This cardioprotective effect was abrogated by NO inhibition, underscoring the pivotal role of NO. Additionally, a dose-dependent increase in NO production was observed in non-ischemic rat hearts treated with P188, further establishing the critical function of NO in P188 induced cardioprotection. In conclusion, our comprehensive study unveils a novel role of NO in mediating the protective effects of P188 against I/R injury. This mechanism is evident in both cellular models and intact rat hearts, highlighting the potential of P188 as a therapeutic agent against I/R injury. Our findings pave the way for further investigation into P188's therapeutic mechanisms and its potential application in clinical settings to mitigate I/R-related cardiac dysfunction.
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Lu J, Wu Y, Zhan S, Zhong Y, Guo Y, Gao J, Zhang B, Dong X, Che J, Xu Y. A Microenvironment-responsive small-molecule probe and application in quick acute myocardial infarction imaging. Talanta 2024; 270:125571. [PMID: 38154354 DOI: 10.1016/j.talanta.2023.125571] [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: 08/22/2023] [Revised: 12/04/2023] [Accepted: 12/18/2023] [Indexed: 12/30/2023]
Abstract
Acute myocardial infarction (AMI) patients are at an elevated risk for life-threatening myocardial ischemia/reperfusion injury. Early-stage nonradioactive and noninvasive diagnosis of AMI is imperative for the subsequent disease treatment, yet it presents substantial challenges. After AMI, the myocardium typically exhibits elevated levels of peroxynitrite (ONOO-), constituting a distinct microenvironmental feature. In this context, the near-infrared imaging probe (BBEB) is employed to precisely delineate the boundaries of AMI lesions with a high level of sensitivity and specificity by monitoring endogenous ONOO-. This probe allows for the early detection of myocardial damage at cellular and animal levels, providing exceptional temporal and spatial resolution. Notably, BBEB enables visualization of ONOO- level alterations during AMI treatment incorporating antioxidant drugs. Overall, BBEB can rapidly and accurately visualize myocardial injury, particularly in the early stages, and can further facilitate antioxidant drug screening.
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Affiliation(s)
- Jialiang Lu
- Hangzhou Institute of Innovative Medicine, Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yirong Wu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang, 310006, China
| | - Siyao Zhan
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang, 310006, China
| | - Yigang Zhong
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang, 310006, China
| | - Yu Guo
- Hangzhou Institute of Innovative Medicine, Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jian Gao
- Hangzhou Institute of Innovative Medicine, Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Bo Zhang
- Department of Clinical Pharmacology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Xiaowu Dong
- Hangzhou Institute of Innovative Medicine, Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China; Department of Pharmacy, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Jinxin Che
- Hangzhou Institute of Innovative Medicine, Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China.
| | - Yizhou Xu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang, 310006, China.
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Zvyagina VI, Belskikh ES. Comparative Assessment of the Functional Activity of Rat Epididymal Mitochondria in Oxidative Stress Induced by Hyperhomocysteinemia and L-NAME Administration. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022020065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Modification of Ischemia/Reperfusion-Induced Alterations in Subcellular Organelles by Ischemic Preconditioning. Int J Mol Sci 2022; 23:ijms23073425. [PMID: 35408783 PMCID: PMC8998910 DOI: 10.3390/ijms23073425] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 02/07/2023] Open
Abstract
It is now well established that ischemia/reperfusion (I/R) injury is associated with the compromised recovery of cardiac contractile function. Such an adverse effect of I/R injury in the heart is attributed to the development of oxidative stress and intracellular Ca2+-overload, which are known to induce remodeling of subcellular organelles such as sarcolemma, sarcoplasmic reticulum, mitochondria and myofibrils. However, repeated episodes of brief periods of ischemia followed by reperfusion or ischemic preconditioning (IP) have been shown to improve cardiac function and exert cardioprotective actions against the adverse effects of prolonged I/R injury. This protective action of IP in attenuating myocardial damage and subcellular remodeling is likely to be due to marked reductions in the occurrence of oxidative stress and intracellular Ca2+-overload in cardiomyocytes. In addition, the beneficial actions of IP have been attributed to the depression of proteolytic activities and inflammatory levels of cytokines as well as the activation of the nuclear factor erythroid factor 2-mediated signal transduction pathway. Accordingly, this review is intended to describe some of the changes in subcellular organelles, which are induced in cardiomyocytes by I/R for the occurrence of oxidative stress and intracellular Ca2+-overload and highlight some of the mechanisms for explaining the cardioprotective effects of IP.
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Insulin signaling alters antioxidant capacity in the diabetic heart. Redox Biol 2021; 47:102140. [PMID: 34560411 PMCID: PMC8473541 DOI: 10.1016/j.redox.2021.102140] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 12/22/2022] Open
Abstract
Diabetic cardiomyopathy is associated with an increase in oxidative stress. However, antioxidant therapy has shown a limited capacity to mitigate disease pathology. The molecular mechanisms responsible for the modulation of reactive oxygen species (ROS) production and clearance must be better defined. The objective of this study was to determine how insulin affects superoxide radical (O2•–) levels. O2•– production was evaluated in adult cardiomyocytes isolated from control and Akita (type 1 diabetic) mice by spin-trapping electron paramagnetic resonance spectroscopy. We found that the basal rates of O2•– production were comparable in control and Akita cardiomyocytes. However, culturing cardiomyocytes without insulin resulted in a significant increase in O2•– production only in the Akita group. In contrast, O2•– production was unaffected by high glucose and/or fatty acid supplementation. The increase in O2•– was due in part to a decrease in superoxide dismutase (SOD) activity. The PI3K inhibitor, LY294002, decreased Akita SOD activity when insulin was present, indicating that the modulation of antioxidant activity is through insulin signaling. The effect of insulin on mitochondrial O2•– production was evaluated in Akita mice that underwent a 1-week treatment of insulin. Mitochondria isolated from insulin-treated Akita mice produced less O2•– than vehicle-treated diabetic mice. Quantitative proteomics was performed on whole heart homogenates to determine how insulin affects antioxidant protein expression. Of 29 antioxidant enzymes quantified, thioredoxin 1 was the only one that was significantly enhanced by insulin treatment. In vitro analysis of thioredoxin 1 revealed a previously undescribed capacity of the enzyme to directly scavenge O2•–. These findings demonstrate that insulin has a role in mitigating cardiac oxidative stress in diabetes via regulation of endogenous antioxidant activity. Insulin decreases ROS production in T1D Akita cardiomyocytes. Insulin signaling downstream of PI3K is required for this effect. Insulin increases the antioxidant capacity in the Akita heart. Trx1 is upregulated by insulin in the Akita heart in vivo.
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Varshney R, Ranjit R, Chiao YA, Kinter M, Ahn B. Myocardial Hypertrophy and Compensatory Increase in Systolic Function in a Mouse Model of Oxidative Stress. Int J Mol Sci 2021; 22:2039. [PMID: 33670798 PMCID: PMC7921997 DOI: 10.3390/ijms22042039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 01/28/2021] [Accepted: 02/11/2021] [Indexed: 12/12/2022] Open
Abstract
Free radicals, or reactive oxygen species, have been implicated as one of the primary causes of myocardial pathologies elicited by chronic diseases and age. The imbalance between pro-oxidants and antioxidants, termed "oxidative stress", involves several pathological changes in mouse hearts, including hypertrophy and cardiac dysfunction. However, the molecular mechanisms and adaptations of the hearts in mice lacking cytoplasmic superoxide dismutase (Sod1KO) have not been investigated. We used echocardiography to characterize cardiac function and morphology in vivo. Protein expression and enzyme activity of Sod1KO were confirmed by targeted mass spectrometry and activity gel. The heart weights of the Sod1KO mice were significantly increased compared with their wildtype peers. The increase in heart weights was accompanied by concentric hypertrophy, posterior wall thickness of the left ventricles (LV), and reduced LV volume. Activated downstream pathways in Sod1KO hearts included serine-threonine kinase and ribosomal protein synthesis. Notably, the reduction in LV volume was compensated by enhanced systolic function, measured by increased ejection fraction and fractional shortening. A regulatory sarcomeric protein, troponin I, was hyper-phosphorylated in Sod1KO, while the vinculin protein was upregulated. In summary, mice lacking cytoplasmic superoxide dismutase were associated with an increase in heart weights and concentric hypertrophy, exhibiting a pathological adaptation of the hearts to oxidative stress.
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Affiliation(s)
- Rohan Varshney
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73103, USA; (R.V.); (R.R.); (Y.A.C.); (M.K.)
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
- Harold Hamm Diabetes Center, University of Oklahoma Health Science Center, Oklahoma City, OK 73104, USA
| | - Rojina Ranjit
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73103, USA; (R.V.); (R.R.); (Y.A.C.); (M.K.)
| | - Ying Ann Chiao
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73103, USA; (R.V.); (R.R.); (Y.A.C.); (M.K.)
| | - Michael Kinter
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73103, USA; (R.V.); (R.R.); (Y.A.C.); (M.K.)
| | - Bumsoo Ahn
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73103, USA; (R.V.); (R.R.); (Y.A.C.); (M.K.)
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Immohr MB, Pinto A, Jenke A, Boeken U, Lichtenberg A, Akhyari P. Prävention von Ischämie‑/Reperfusionsschäden. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2020. [DOI: 10.1007/s00398-020-00394-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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El Kazzi M, Rayner BS, Chami B, Dennis JM, Thomas SR, Witting PK. Neutrophil-Mediated Cardiac Damage After Acute Myocardial Infarction: Significance of Defining a New Target Cell Type for Developing Cardioprotective Drugs. Antioxid Redox Signal 2020; 33:689-712. [PMID: 32517486 PMCID: PMC7475094 DOI: 10.1089/ars.2019.7928] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Significance: Acute myocardial infarction (AMI) is a leading cause of death worldwide. Post-AMI survival rates have increased with the introduction of angioplasty as a primary coronary intervention. However, reperfusion after angioplasty represents a clinical paradox, restoring blood flow to the ischemic myocardium while simultaneously inducing ion and metabolic imbalances that stimulate immune cell recruitment and activation, mitochondrial dysfunction and damaging oxidant production. Recent Advances: Preclinical data indicate that these metabolic imbalances contribute to subsequent heart failure through sustaining local recruitment of inflammatory leukocytes and oxidative stress, cardiomyocyte death, and coronary microvascular disturbances, which enhance adverse cardiac remodeling. Both left ventricular dysfunction and heart failure are strongly linked to inflammation and immune cell recruitment to the damaged myocardium. Critical Issues: Overall, therapeutic anti-inflammatory and antioxidant agents identified in preclinical trials have failed in clinical trials. Future Directions: The versatile neutrophil-derived heme enzyme, myeloperoxidase (MPO), is gaining attention as an important oxidative mediator of reperfusion injury, vascular dysfunction, adverse ventricular remodeling, and atrial fibrillation. Accordingly, there is interest in therapeutically targeting neutrophils and MPO activity in the setting of heart failure. Herein, we discuss the role of post-AMI inflammation linked to myocardial damage and heart failure, describe previous trials targeting inflammation and oxidative stress post-AMI, highlight the potential adverse impact of neutrophil and MPO, and detail therapeutic options available to target MPO clinically in AMI patients.
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Affiliation(s)
- Mary El Kazzi
- Discipline of Pathology, Charles Perkins Centre, Sydney Medical School, The University of Sydney, Sydney, Australia
| | | | - Belal Chami
- Discipline of Pathology, Charles Perkins Centre, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - Joanne Marie Dennis
- Discipline of Pathology, Charles Perkins Centre, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - Shane Ross Thomas
- Department of Pathology, School of Medical Sciences, The University of New South Wales, Sydney, Australia
| | - Paul Kenneth Witting
- Discipline of Pathology, Charles Perkins Centre, Sydney Medical School, The University of Sydney, Sydney, Australia
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Yan Z, Spaulding HR. Extracellular superoxide dismutase, a molecular transducer of health benefits of exercise. Redox Biol 2020; 32:101508. [PMID: 32220789 PMCID: PMC7109453 DOI: 10.1016/j.redox.2020.101508] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 02/06/2023] Open
Abstract
Extracellular superoxide dismutase (EcSOD) is the only extracellular scavenger of superoxide anion (O2.-) with unique binding capacity to cell surface and extracellular matrix through its heparin-binding domain. Enhanced EcSOD activity prevents oxidative stress and damage, which are fundamental in a variety of disease pathologies. In this review we will discuss the findings in humans and animal studies supporting the benefits of EcSOD induced by exercise training in reducing oxidative stress in various tissues. In particularly, we will highlight the importance of skeletal muscle EcSOD, which is induced by endurance exercise and redistributed through the circulation to the peripheral tissues, as a molecular transducer of exercise training to confer protection against oxidative stress and damage in various disease conditions.
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Affiliation(s)
- Zhen Yan
- Center for Skeletal Muscle Research at Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA; Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA; Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA; Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA.
| | - Hannah R Spaulding
- Center for Skeletal Muscle Research at Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA
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10
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Wang S, Yang X. Eleutheroside E decreases oxidative stress and NF-κB activation and reprograms the metabolic response against hypoxia-reoxygenation injury in H9c2 cells. Int Immunopharmacol 2020; 84:106513. [PMID: 32330867 DOI: 10.1016/j.intimp.2020.106513] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/21/2020] [Accepted: 04/13/2020] [Indexed: 01/23/2023]
Abstract
Ischemia-reperfusion (I/R) injury causes cardiac dysfunction through several mechanisms including oxidative stress and pro-inflammation. Eleutheroside E (EE) has protective effects in ischemia tissue and anti-inflammatory action. However, the effect of EE on I/R-injured cardiomyocytes is unknown. In this study, we used in vitro H9c2 cell model to investigate the favorable role of EE on myocardial I/R injury. We found that EE administration attenuated the cardiomyocyte apoptosis induced by hypoxia-reoxygenation (H/R) injury. Further, pre-treatment with EE dramatically inhibited mitochondrial oxidative stress, IκBα phosphorylation and nuclear factor kappa B (NF-κB) subunit p65 translocation into nuclei. EE might suppress the MAPK signaling pathway to inhibit the H/R-induced NF-κB activation. Moreover, we had analyzed the metabolomic profile of H/R-injured and H/R + 100 EE-treated H9c2 cells and found that the abundance of most metabolites changed by H/R could be re-modulated by EE treatment. Pathway analysis highlighted the inhibition of fatty acid biosynthesis and alternation of arginine and proline metabolism as two potential links to the favorable effect of EE on H/R-injured cardiomyocytes. The further demonstration showed that nitric oxide (NO), a product that is solely catabolized by l-arginine and has profound anti-oxidative stress activity during H/R in cardiomyocytes, was augmented by EE. Altogether, our results provide evidence that EE may be a potential drug for myocardial I/R injury by reducing oxidative stress, NF-κB activation, and metabolic reprogramming.
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Affiliation(s)
- Shanyue Wang
- Department Cardiovascular Medicine, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Xuming Yang
- Department Cardiovascular Medicine, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China.
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11
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Membrane cholesterol oxidation downregulates atrial β-adrenergic responses in ROS-dependent manner. Cell Signal 2020; 67:109503. [DOI: 10.1016/j.cellsig.2019.109503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/15/2019] [Accepted: 12/15/2019] [Indexed: 01/06/2023]
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12
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Chowdhury MA, Sholl HK, Sharrett MS, Haller ST, Cooper CC, Gupta R, Liu LC. Exercise and Cardioprotection: A Natural Defense Against Lethal Myocardial Ischemia-Reperfusion Injury and Potential Guide to Cardiovascular Prophylaxis. J Cardiovasc Pharmacol Ther 2019; 24:18-30. [PMID: 30041547 PMCID: PMC7236859 DOI: 10.1177/1074248418788575] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Similar to ischemic preconditioning, high-intensity exercise has been shown to decrease infarct size following myocardial infarction. In this article, we review the literature on beneficial effects of exercise, exercise requirements for cardioprotection, common methods utilized in laboratories to study this phenomenon, and discuss possible mechanisms for exercise-mediated cardioprotection.
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Affiliation(s)
- Mohammed Andaleeb Chowdhury
- 1 Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
- * Mohammed Andaleeb Chowdhury, Haden K. Sholl, and Megan S. Sharrett contributed equally to this work
| | - Haden K Sholl
- 1 Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
- * Mohammed Andaleeb Chowdhury, Haden K. Sholl, and Megan S. Sharrett contributed equally to this work
| | - Megan S Sharrett
- 1 Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Steven T Haller
- 1 Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Christopher C Cooper
- 1 Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Rajesh Gupta
- 1 Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Lijun C Liu
- 1 Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
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13
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Cardioprotective and anti-apoptotic effects of Potentilla reptans L. root via Nrf2 pathway in an isolated rat heart ischemia/reperfusion model. Life Sci 2018; 215:216-226. [DOI: 10.1016/j.lfs.2018.11.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 11/01/2018] [Accepted: 11/09/2018] [Indexed: 02/06/2023]
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14
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Gong W, Ma Y, Li A, Shi H, Nie S. Trimetazidine suppresses oxidative stress, inhibits MMP-2 and MMP-9 expression, and prevents cardiac rupture in mice with myocardial infarction. Cardiovasc Ther 2018; 36:e12460. [PMID: 30019466 DOI: 10.1111/1755-5922.12460] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/28/2018] [Accepted: 07/14/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/AIMS Cardiac rupture (CR) is a catastrophic complication of acute myocardial infarction (MI). At present, there are no effective pharmacological strategies for preventing post-MI rupture. Here we investigated the effect of trimetazidine (TMZ) on post-MI CR. METHODS MI models were induced by left coronary artery ligation in male C57BL/6 mice. Animals allocated to the rupture incidence were closely monitored for 7 days; autopsy was performed once animals were found dead to determine the reason of death. Heart function was detected by echocardiography. Oxidative stress markers and matrix metalloproteinases (MMPs) were analyzed by Western Blotting. RESULTS TMZ markedly reduced the post-MI CR incidence of mice. We found that the expression of metalloproteinase (MMP) -2 and MMP-9 in the TMZ-treated group was significantly lower than the saline-treated group. Further, TMZ markedly attenuated MI-induced oxidative stress. To investigate the mechanism of the effect of TMZ on CR, we pretreated H9c2 cells with H2 O2 and found that TMZ treatment markedly decreased H2 O2 -induced MMP-2 and MMP-9 expression. TMZ prevents CR through inhibition of oxidative stress, which is attributable to the down-regulation of MMP-2, MMP-9 expression. CONCLUSIONS Our findings indicate that TMZ suppresses oxidative stress, inhibits MMP-2 and MMP-9 expression, and prevents CR in mice with MI.
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Affiliation(s)
- Wei Gong
- Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, China
| | - Youcai Ma
- Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, China
| | - Aobo Li
- Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, China
| | - Han Shi
- Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, China
| | - Shaoping Nie
- Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, China
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15
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Kristiansen SB, Sheykhzade M, Edvinsson L, Haanes KA. Changes in vasodilation following myocardial ischemia/reperfusion in rats. Nitric Oxide 2017; 70:68-75. [PMID: 28919322 DOI: 10.1016/j.niox.2017.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 08/01/2017] [Accepted: 09/12/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Blockage of a coronary artery, usually caused by arteriosclerosis, can lead to life threatening acute myocardial infarction. Opening with PCI (percutaneous coronary intervention), may be lifesaving, but reperfusion might exacerbate the cellular damage, and changes in the endothelium are believed to be involved in this worsened outcome. AIM The aim of the present study was to compare endothelial dependent and independent vasodilatory effect after experimental myocardial ischemia/reperfusion (I/R). METHODS A well-established rat model of myocardial ischemia with 24 h of reperfusion was applied, followed by a study in a wire myograph. RESULTS Endothelial NO dependent relaxation in response to carbachol, was sensitive to arterial depolarization, and was unaffected by I/R. In contrast, endothelial NO dependent ADPβS signalling, which was not sensitive to arterial depolarization, was significantly reduced after I/R. Following I/R, an H2O2 dependent EDH induced dilation appears in response to both of the above agonists. In addition, calcitonin gene-related peptide (CGRP) induced vasodilation was reduced. CONCLUSION These data show that NO dependent ADPβS induced dilation is reduced after I/R. However, there is some compensation by released H2O2 causing an EDH. Combined with a loss of maximal dilation in response to CGRP, the reduced vasodilation could be an important factor in understanding the exacerbated damage after I/R.
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Affiliation(s)
- Sarah Brøgger Kristiansen
- Department of Clinical Experimental Research, Glostrup Research Institute, Copenhagen University Hospital, Rigshospitalet-Glostrup, Denmark; Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Majid Sheykhzade
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Lars Edvinsson
- Department of Clinical Experimental Research, Glostrup Research Institute, Copenhagen University Hospital, Rigshospitalet-Glostrup, Denmark
| | - Kristian Agmund Haanes
- Department of Clinical Experimental Research, Glostrup Research Institute, Copenhagen University Hospital, Rigshospitalet-Glostrup, Denmark.
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16
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Pinto A, Immohr MB, Jahn A, Jenke A, Boeken U, Lichtenberg A, Akhyari P. The extracellular isoform of superoxide dismutase has a significant impact on cardiovascular ischaemia and reperfusion injury during cardiopulmonary bypass. Eur J Cardiothorac Surg 2017; 50:1035-1044. [PMID: 27999072 DOI: 10.1093/ejcts/ezw216] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 05/02/2016] [Accepted: 05/08/2016] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVES Cardiac surgery with cardiopulmonary bypass (CPB) provokes ischaemia and reperfusion injury (IRI). Superoxide is a main mediator of IRI and is detoxified by superoxide dismutases (SODs). Extracellular SOD (SOD3) is the prevailing isoform in the cardiovascular system. Its mutation is associated with elevated risk for ischaemic heart disease as epidemiological and experimental studies suggest. We investigated the influence of SOD3 on IRI in the context of CPB and hypothesized a protective role for this enzyme. METHODS Mutant rats with loss of SOD3 function induced by amino acid shift, SOD3-E124D, (SOD3 mutant; n = 9) were examined in a model of CPB with deep hypothermic circulatory arrest provoking global IRI and compared with SOD3 competent controls (n = 8) as well as sham animals (n = 7). SOD3 plasma activity was photometrically measured with a diazo dye-forming reagent. Activation of cardioprotective rescue pathways (p44-42 MAPK and STAT3), cleavage of PARP-1, expression of SOD isoforms (SOD1, 2 and 3) and nitric oxide metabolism were analysed on the protein level by western blot. To evaluate whether SOD3 inactivity directly affects the myocardium, we isolated adult cardiac myocytes, which underwent hypoxia prior to protein analyses. RESULTS Relative SOD3 plasma activity in SOD3 mutant rats was significantly decreased by at least 50% compared with that in SOD3 competent controls (prior to euthanasia P = 0.008). Effectively, physiological parameters [heart rate and mean arterial pressure (MAP)] indicated a trend toward impaired handling of ischaemia and reperfusion in SOD3 mutants: after reperfusion, mean heart rate was 46 bpm lower (P = 0.083) and MAP 8 mmHg lower (P = 0.288) than that in SOD competent controls. Decreased SOD3 activity led to reduced activation of cardioprotective rescue pathways in vivo and in vitro: relative activation of p44-42 MAPK (P = 0.074) and STAT3 (P = 0.027) was more than 30% decreased in heart and aortic tissue of SOD3 mutants (activity normalized to sham control as 1). After CPB, cleavage of PARP-1 was doubled in the control group (P = 0.017), but increased 3-fold in SOD3 mutants (P = 0.002). Furthermore, 3-nitrotyrosine as a measure of decreased nitric oxide bioavailability and other SOD isoforms (SOD1 and 2) were increased. CONCLUSIONS Collectively, SOD3 has a significant cardioprotective role in cases of IRI and directly affects the myocardium as hypothesized. Exploration of intervention strategies targeting SOD3 may provide therapeutic options against IRI and associated systemic inflammation.
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Affiliation(s)
- Antonio Pinto
- Department of Cardiovascular Surgery, Heinrich Heine University Medical School, Duesseldorf, Germany
| | - Moritz Benjamin Immohr
- Department of Cardiovascular Surgery, Heinrich Heine University Medical School, Duesseldorf, Germany
| | - Annika Jahn
- Department of Cardiovascular Surgery, Heinrich Heine University Medical School, Duesseldorf, Germany
| | - Alexander Jenke
- Department of Cardiovascular Surgery, Heinrich Heine University Medical School, Duesseldorf, Germany
| | - Udo Boeken
- Department of Cardiovascular Surgery, Heinrich Heine University Medical School, Duesseldorf, Germany
| | - Artur Lichtenberg
- Department of Cardiovascular Surgery, Heinrich Heine University Medical School, Duesseldorf, Germany
| | - Payam Akhyari
- Department of Cardiovascular Surgery, Heinrich Heine University Medical School, Duesseldorf, Germany
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Chen C, Lu W, Wu G, Lv L, Chen W, Huang L, Wu X, Xu N, Wu Y. Cardioprotective effects of combined therapy with diltiazem and superoxide dismutase on myocardial ischemia-reperfusion injury in rats. Life Sci 2017; 183:50-59. [PMID: 28666765 DOI: 10.1016/j.lfs.2017.06.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 06/24/2017] [Accepted: 06/26/2017] [Indexed: 12/21/2022]
Abstract
AIMS Our experiments were designed to study the effect of diltiazem (DIL) combined with superoxide dismutase (SOD) on myocardial ischemia-reperfusion (MIRI) injury in a rat model. MAIN METHODS Fifty rats were randomly separated into sham, ischemia-reperfusion (IR), DIL (5mg/kg), SOD (10,000U/kg) and combinatorial therapy (DIL plus SOD) groups. MIRI was induced by ligating the left anterior descending coronary artery for 30min and then reperfusing for 60min. The cardioprotective effects of combinatorial therapy were evaluated using hemodynamics, biochemical indices, histopathology and apoptotic-related proteins and gene expression. KEY FINDINGS Compared with the IR group, combinatorial therapy significantly improved cardiac function and decreased arrhythmia, myocardial infarction area and release of myocardial enzyme. In addition, combinatorial therapy protected the myocardial cell structure as well as markedly alleviated oxidative stress, resulting in upregulation of Bcl-2 and adenine nucleotide transporter-1 expression as well as downregulation of Bax, caspase-3 and cleaved caspase-3 expression. SIGNIFICANCE Our results indicated that DIL combined with SOD can provide protection against MIRI in rats, and these effects may be attributed to a reduction in oxygen stress damage, attenuation of calcium overload, and inhibition of cell apoptosis.
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Affiliation(s)
- Chunxia Chen
- Department of Hyperbaric Oxygen, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Wensheng Lu
- Department of Endocrinology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Guangwei Wu
- Department of Cardiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Liwen Lv
- Department of Emergency, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Wan Chen
- Department of Emergency, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Luying Huang
- Department of Respiratory Diseases, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Xubin Wu
- Department of Cardiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Nengwen Xu
- Department of Cardiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China
| | - Yinxiong Wu
- Department of Cardiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, PR China.
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Constantino L, Galant LS, Vuolo F, Guarido KL, Kist LW, de Oliveira GMT, Pasquali MADB, de Souza CT, da Silva-Santos JE, Bogo MR, Moreira JCF, Ritter C, Dal-Pizzol F. Extracellular superoxide dismutase is necessary to maintain renal blood flow during sepsis development. Intensive Care Med Exp 2017; 5:15. [PMID: 28303482 PMCID: PMC5355399 DOI: 10.1186/s40635-017-0130-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 03/09/2017] [Indexed: 11/10/2022] Open
Abstract
Background Extracellular superoxide dismutase (ECSOD) protects nitric oxide (NO) bioavailability by decreasing superoxide levels and preventing peroxynitrite generation, which is important in maintaining renal blood flow and in preventing acute kidney injury. However, the profile of ECSOD expression after sepsis is not fully understood. Therefore, we intended to evaluate the content and gene expression of superoxide dismutase (SOD) isoforms in the renal artery and their relation to renal blood flow. Methods Sepsis was induced in Wistar rats by caecal ligation and perforation. Several times after sepsis induction, renal blood flow (12, 24 and 48 h); the renal arterial content of SOD isoforms, nitrotyrosine, endothelial and inducible nitric oxide synthase (e-NOS and i-NOS), and phosphorylated vasodilator-stimulated phosphoprotein (pVASP); and SOD activity (3, 6 and 12 h) were measured. The influence of a SOD inhibitor was also evaluated. Results An increase in ECSOD content was associated with decreased 3-nitrotyrosine levels. These events were associated with an increase in pVASP content and maintenance of renal blood flow. Moreover, previous treatment with a SOD inhibitor increased nitrotyrosine content and reduced renal blood flow. Conclusions ECSOD appears to have a major role in decreasing peroxynitrite formation in the renal artery during the early stages of sepsis development, and its application can be important in renal blood flow control and maintenance during septic insult.
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Affiliation(s)
- Larissa Constantino
- Laboratório de Fisiopatologia Experimental, Universidade do Extremo Sul Catarinense, Avenida Universitária, 1105, 88806-000, Criciúma, SC, Brazil
| | - Letícia Selinger Galant
- Laboratório de Fisiopatologia Experimental, Universidade do Extremo Sul Catarinense, Avenida Universitária, 1105, 88806-000, Criciúma, SC, Brazil
| | - Francieli Vuolo
- Laboratório de Fisiopatologia Experimental, Universidade do Extremo Sul Catarinense, Avenida Universitária, 1105, 88806-000, Criciúma, SC, Brazil
| | - Karla Lorena Guarido
- Departamento de Farmacologia, Laboratório de Biologia Cardiovascular, Universidade Federal de Santa Catarina, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Luiza Wilges Kist
- Laboratório de Biologia Genômica e Molecular, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, 90619-900, Porto Alegre, RS, Brazil
| | - Giovanna Medeiros Tavares de Oliveira
- Laboratório de Biologia Genômica e Molecular, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, 90619-900, Porto Alegre, RS, Brazil
| | - Matheus Augusto de Bittencourt Pasquali
- Departamento de Bioquímica, Centro de Estudos em Estresse Oxidativo (Lab. 32), ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-Anexo, CEP 90035-003, Porto Alegre, RS, Brazil
| | - Cláudio Teodoro de Souza
- Laboratório de Fisiologia e Bioquímica do Exercício, Universidade do Extremo Sul Catarinense, Avenida Universitária, 1105, 88806-000, Criciúma, SC, Brazil
| | - José Eduardo da Silva-Santos
- Departamento de Farmacologia, Laboratório de Biologia Cardiovascular, Universidade Federal de Santa Catarina, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Maurício Reis Bogo
- Laboratório de Biologia Genômica e Molecular, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, 90619-900, Porto Alegre, RS, Brazil
| | - José Cláudio Fonseca Moreira
- Departamento de Bioquímica, Centro de Estudos em Estresse Oxidativo (Lab. 32), ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-Anexo, CEP 90035-003, Porto Alegre, RS, Brazil
| | - Cristiane Ritter
- Laboratório de Fisiopatologia Experimental, Universidade do Extremo Sul Catarinense, Avenida Universitária, 1105, 88806-000, Criciúma, SC, Brazil
| | - Felipe Dal-Pizzol
- Laboratório de Fisiopatologia Experimental, Universidade do Extremo Sul Catarinense, Avenida Universitária, 1105, 88806-000, Criciúma, SC, Brazil.
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Dulce RA, Kulandavelu S, Schulman IH, Fritsch J, Hare JM. Nitric Oxide Regulation of Cardiovascular Physiology and Pathophysiology. Nitric Oxide 2017. [DOI: 10.1016/b978-0-12-804273-1.00024-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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20
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Pterostilbene protects against myocardial ischemia/reperfusion injury via suppressing oxidative/nitrative stress and inflammatory response. Int Immunopharmacol 2016; 43:7-15. [PMID: 27936461 DOI: 10.1016/j.intimp.2016.11.018] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/17/2016] [Accepted: 11/18/2016] [Indexed: 12/21/2022]
Abstract
Recent studies have shown that pterostilbene (Pte) confers protection against myocardial ischemia/reperfusion injury. The oxidative/nitrative stress and inflammation induce injury after myocardial ischemia/reperfusion. The present study was designed to evaluate whether treatment with Pte attenuates oxidative/nitrative stress and inflammation in myocardial ischemia/reperfusion (MI/R). Rats were subjected to 30min of myocardial ischemia and 3h of reperfusion, and the rats were administered with vehicle or Pte. The results showed that Pte (10mg/kg) dramatically improved cardiac function and reduced myocardial infarction and myocardial apoptosis following MI/R. As an indicator of oxidative/nitrative stress, myocardial ONOO- content was markedly reduced after Pte treatment. And, Pte led to a dramatic decrease in superoxide generation and malondialdehyde (MDA) content and a dramatic increase in superoxide dismutase (SOD) activity. In addition, Pte treatment significantly reduced p38 MAPK activation and the expression of iNOS and gp91phox and increased phosphorylated eNOS expression. Pte treatment dramatically decreased myocardial TNF-α, and IL-1β levels and myeloperoxidase (MPO) activity. Furthermore, ONOO- suppression by either Pte or uric acid (UA), an ONOO- scavenger, reduced myocardial injury. In conclusion, Pte exerts a protective effect against MI/R injury by suppressing oxidative/nitrative stress. These results provide evidence that Pte might be a therapeutic approach for the treatment of MI/R injury.
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21
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Murphy E, Ardehali H, Balaban RS, DiLisa F, Dorn GW, Kitsis RN, Otsu K, Ping P, Rizzuto R, Sack MN, Wallace D, Youle RJ. Mitochondrial Function, Biology, and Role in Disease: A Scientific Statement From the American Heart Association. Circ Res 2016; 118:1960-91. [PMID: 27126807 PMCID: PMC6398603 DOI: 10.1161/res.0000000000000104] [Citation(s) in RCA: 290] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cardiovascular disease is a major leading cause of morbidity and mortality in the United States and elsewhere. Alterations in mitochondrial function are increasingly being recognized as a contributing factor in myocardial infarction and in patients presenting with cardiomyopathy. Recent understanding of the complex interaction of the mitochondria in regulating metabolism and cell death can provide novel insight and therapeutic targets. The purpose of this statement is to better define the potential role of mitochondria in the genesis of cardiovascular disease such as ischemia and heart failure. To accomplish this, we will define the key mitochondrial processes that play a role in cardiovascular disease that are potential targets for novel therapeutic interventions. This is an exciting time in mitochondrial research. The past decade has provided novel insight into the role of mitochondria function and their importance in complex diseases. This statement will define the key roles that mitochondria play in cardiovascular physiology and disease and provide insight into how mitochondrial defects can contribute to cardiovascular disease; it will also discuss potential biomarkers of mitochondrial disease and suggest potential novel therapeutic approaches.
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22
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Teng L, Bennett E, Cai C. Preconditioning c-Kit-positive Human Cardiac Stem Cells with a Nitric Oxide Donor Enhances Cell Survival through Activation of Survival Signaling Pathways. J Biol Chem 2016; 291:9733-47. [PMID: 26940876 DOI: 10.1074/jbc.m115.687806] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Indexed: 12/20/2022] Open
Abstract
Cardiac stem cell therapy has shown very promising potential to repair the infarcted heart but is severely limited by the poor survival of donor cells. Nitric oxide (NO) has demonstrated cytoprotective properties in various cells, but its benefits are unknown specifically for human cardiac stem cells (hCSCs). Therefore, we investigated whether pretreatment of hCSCs with a widely used NO donor, diethylenetriamine nitric oxide adduct (DETA-NO), promotes cell survival. Results from lactate dehydrogenase release assays showed a dose- and time-dependent attenuation of cell death induced by oxidative stress after DETA-NO preconditioning; this cytoprotective effect was abolished by the NO scavenger. Concomitant up-regulation of several cell signaling molecules after DETA-NO preconditioning was observed by Western blotting, including elevated phosphorylation of NRF2, NFκB, STAT3, ERK, and AKT, as well as increased protein expression of HO-1 and COX2. Furthermore, pharmaceutical inhibition of ERK, STAT3, and NFκB activities significantly diminished NO-induced cytoprotection against oxidative stress, whereas inhibition of AKT or knockdown of NRF2 only produced a minor effect. Blocking PI3K activity or knocking down COX2 expression did not alter the protective effect of DETA-NO on cell survival. The crucial roles of STAT3 and NFκB in NO-mediated signaling pathways were further confirmed by stable expression of gene-specific shRNAs in hCSCs. Thus, preconditioning hCSCs with DETA-NO promotes cell survival and resistance to oxidative stress by activating multiple cell survival signaling pathways. These results will potentially provide a simple and effective strategy to enhance survival of hCSCs after transplantation and increase their efficacy in repairing infarcted myocardium.
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Affiliation(s)
- Lei Teng
- From the Center for Cardiovascular Sciences and Department of Medicine, Albany Medical College and
| | - Edward Bennett
- Division of Cardiothoracic Surgery, Albany Medical Center, Albany, New York 12208
| | - Chuanxi Cai
- From the Center for Cardiovascular Sciences and Department of Medicine, Albany Medical College and
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23
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Lei XG, Zhu JH, Cheng WH, Bao Y, Ho YS, Reddi AR, Holmgren A, Arnér ESJ. Paradoxical Roles of Antioxidant Enzymes: Basic Mechanisms and Health Implications. Physiol Rev 2016; 96:307-64. [PMID: 26681794 DOI: 10.1152/physrev.00010.2014] [Citation(s) in RCA: 245] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are generated from aerobic metabolism, as a result of accidental electron leakage as well as regulated enzymatic processes. Because ROS/RNS can induce oxidative injury and act in redox signaling, enzymes metabolizing them will inherently promote either health or disease, depending on the physiological context. It is thus misleading to consider conventionally called antioxidant enzymes to be largely, if not exclusively, health protective. Because such a notion is nonetheless common, we herein attempt to rationalize why this simplistic view should be avoided. First we give an updated summary of physiological phenotypes triggered in mouse models of overexpression or knockout of major antioxidant enzymes. Subsequently, we focus on a series of striking cases that demonstrate "paradoxical" outcomes, i.e., increased fitness upon deletion of antioxidant enzymes or disease triggered by their overexpression. We elaborate mechanisms by which these phenotypes are mediated via chemical, biological, and metabolic interactions of the antioxidant enzymes with their substrates, downstream events, and cellular context. Furthermore, we propose that novel treatments of antioxidant enzyme-related human diseases may be enabled by deliberate targeting of dual roles of the pertaining enzymes. We also discuss the potential of "antioxidant" nutrients and phytochemicals, via regulating the expression or function of antioxidant enzymes, in preventing, treating, or aggravating chronic diseases. We conclude that "paradoxical" roles of antioxidant enzymes in physiology, health, and disease derive from sophisticated molecular mechanisms of redox biology and metabolic homeostasis. Simply viewing antioxidant enzymes as always being beneficial is not only conceptually misleading but also clinically hazardous if such notions underpin medical treatment protocols based on modulation of redox pathways.
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Affiliation(s)
- Xin Gen Lei
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Jian-Hong Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Wen-Hsing Cheng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Yongping Bao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Ye-Shih Ho
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Amit R Reddi
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Arne Holmgren
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Elias S J Arnér
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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Zhang W, St Clair D, Butterfield A, Vore M. Loss of Mrp1 Potentiates Doxorubicin-Induced Cytotoxicity in Neonatal Mouse Cardiomyocytes and Cardiac Fibroblasts. Toxicol Sci 2016; 151:44-56. [PMID: 26822305 DOI: 10.1093/toxsci/kfw021] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Doxorubicin (DOX) induces dose-dependent cardiotoxicity in part due to its ability to induce oxidative stress. We showed that loss of multidrug resistance-associated protein 1 (Abcc1/Mrp1) potentiates DOX-induced cardiac dysfunction in mice in vivo Here, we characterized DOX toxicity in cultured cardiomyocytes (CM) and cardiac fibroblasts (CF) derived from C57BL wild type (WT) and Mrp1 null (Mrp1-/-) neonatal mice. CM accumulated more intracellular DOX relative to CF but this accumulation did not differ between genotypes. Following DOX (0.3-4 μM), Mrp1-/- CM, and CF, especially CM, showed a greater decrease in viability and increased apoptosis and DNA damage, demonstrated by higher caspase 3 cleavage, poly (ADP-ribose) polymerase 1 (PARP) cleavage and phosphorylated histone H2AX (γH2AX) levels versus WT cells. Saline- and DOX-treated Mrp1-/- cells had significantly higher intracellular GSH and GSSG compared with WT cells (P < .05), but the redox potential (Eh) of the GSH/GSSG pool did not differ between genotypes in CM and CF, indicating that Mrp1-/- cells maintain this major redox couple. DOX increased expression of the rate-limiting GSH synthesis enzyme glutamate-cysteine ligase catalytic (GCLc) and regulatory subunits (GCLm) to a significantly greater extent in Mrp1-/- versus WT cells, suggesting adaptive responses to oxidative stress in Mrp1-/- cells that were inadequate to afford protection. Expression of extracellular superoxide dismutase (ECSOD/SOD3) was lower (P < .05) in Mrp1-/- versus WT CM treated with saline (62% ± 8% of WT) or DOX (43% ± 12% of WT). Thus, Mrp1 protects CM in particular and CF against DOX-induced toxicity, potentially by regulating extracellular redox states.
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Affiliation(s)
- Wei Zhang
- *Department of Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, Kentucky 40536
| | - Daret St Clair
- *Department of Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, Kentucky 40536
| | - Allan Butterfield
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506
| | - Mary Vore
- *Department of Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, Kentucky 40536;
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Low T3 State Is Correlated with Cardiac Mitochondrial Impairments after Ischemia Reperfusion Injury: Evidence from a Proteomic Approach. Int J Mol Sci 2015; 16:26687-705. [PMID: 26561807 PMCID: PMC4661832 DOI: 10.3390/ijms161125973] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 10/13/2015] [Accepted: 10/26/2015] [Indexed: 11/22/2022] Open
Abstract
Mitochondria are major determinants of cell fate in ischemia/reperfusion injury (IR) and common effectors of cardio-protective strategies in cardiac ischemic disease. Thyroid hormone homeostasis critically affects mitochondrial function and energy production. Since a low T3 state (LT3S) is frequently observed in the post infarction setting, the study was aimed to investigate the relationship between 72 h post IR T3 levels and both the cardiac function and the mitochondrial proteome in a rat model of IR. The low T3 group exhibits the most compromised cardiac performance along with the worst mitochondrial activity. Accordingly, our results show a different remodeling of the mitochondrial proteome in the presence or absence of a LT3S, with alterations in groups of proteins that play a key role in energy metabolism, quality control and regulation of cell death pathways. Overall, our findings highlight a relationship between LT3S in the early post IR and poor cardiac and mitochondrial outcomes, and suggest a potential implication of thyroid hormone in the cardio-protection and tissue remodeling in ischemic disease.
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Conklin DJ, Guo Y, Jagatheesan G, Kilfoil PJ, Haberzettl P, Hill BG, Baba SP, Guo L, Wetzelberger K, Obal D, Rokosh DG, Prough RA, Prabhu SD, Velayutham M, Zweier JL, Hoetker JD, Riggs DW, Srivastava S, Bolli R, Bhatnagar A. Genetic Deficiency of Glutathione S-Transferase P Increases Myocardial Sensitivity to Ischemia-Reperfusion Injury. Circ Res 2015; 117:437-49. [PMID: 26169370 DOI: 10.1161/circresaha.114.305518] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 07/13/2015] [Indexed: 01/18/2023]
Abstract
RATIONALE Myocardial ischemia-reperfusion (I/R) results in the generation of oxygen-derived free radicals and the accumulation of lipid peroxidation-derived unsaturated aldehydes. However, the contribution of aldehydes to myocardial I/R injury has not been assessed. OBJECTIVE We tested the hypothesis that removal of aldehydes by glutathione S-transferase P (GSTP) diminishes I/R injury. METHODS AND RESULTS In adult male C57BL/6 mouse hearts, Gstp1/2 was the most abundant GST transcript followed by Gsta4 and Gstm4.1, and GSTP activity was a significant fraction of the total GST activity. mGstp1/2 deletion reduced total GST activity, but no compensatory increase in GSTA and GSTM or major antioxidant enzymes was observed. Genetic deficiency of GSTP did not alter cardiac function, but in comparison with hearts from wild-type mice, the hearts isolated from GSTP-null mice were more sensitive to I/R injury. Disruption of the GSTP gene also increased infarct size after coronary occlusion in situ. Ischemia significantly increased acrolein in hearts, and GSTP deficiency induced significant deficits in the metabolism of the unsaturated aldehyde, acrolein, but not in the metabolism of 4-hydroxy-trans-2-nonenal or trans-2-hexanal; on ischemia, the GSTP-null hearts accumulated more acrolein-modified proteins than wild-type hearts. GSTP deficiency did not affect I/R-induced free radical generation, c-Jun N-terminal kinase activation, or depletion of reduced glutathione. Acrolein exposure induced a hyperpolarizing shift in INa, and acrolein-induced cell death was delayed by SN-6, a Na(+)/Ca(++) exchange inhibitor. Cardiomyocytes isolated from GSTP-null hearts were more sensitive than wild-type myocytes to acrolein-induced protein crosslinking and cell death. CONCLUSIONS GSTP protects the heart from I/R injury by facilitating the detoxification of cytotoxic aldehydes, such as acrolein.
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Affiliation(s)
- Daniel J Conklin
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.).
| | - Yiru Guo
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Ganapathy Jagatheesan
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Peter J Kilfoil
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Petra Haberzettl
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Bradford G Hill
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Shahid P Baba
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Luping Guo
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Karin Wetzelberger
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Detlef Obal
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - D Gregg Rokosh
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Russell A Prough
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Sumanth D Prabhu
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Murugesan Velayutham
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Jay L Zweier
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - J David Hoetker
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Daniel W Riggs
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Sanjay Srivastava
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Roberto Bolli
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
| | - Aruni Bhatnagar
- From the Diabetes and Obesity Center (D.J.C., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., K.W., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B.), Institute of Molecular Cardiology (D.J.C., Y.G., P.J.K., P.H., B.G.H., S.P.B., D.O., D.G.R., S.S., R.B., A.B.), Division of Cardiovascular Medicine, Department of Medicine (D.J.C., Y.G., G.J., P.J.K., P.H., B.G.H., S.P.B., L.G., D.O., D.G.R., J.D.H., D.W.R., S.S., R.B., A.B), Department of Anesthesiology and Perioperative Medicine (D.O.), and Department of Biochemistry and Molecular Genetics (P.J.K., R.A.P., A.B.), University of Louisville, KY; Division of Cardiovascular Disease, University of Alabama at Birmingham (S.D.P.); and Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, and Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus (M.V., J.L.Z.)
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Abstract
Reperfusion is mandatory to salvage ischemic myocardium from infarction, but reperfusion per se contributes to injury and ultimate infarct size. Therefore, cardioprotection beyond that by timely reperfusion is needed to reduce infarct size and improve the prognosis of patients with acute myocardial infarction. The conditioning phenomena provide such cardioprotection, insofar as brief episodes of coronary occlusion/reperfusion preceding (ischemic preconditioning) or following (ischemic postconditioning) sustained myocardial ischemia with reperfusion reduce infarct size. Even ischemia/reperfusion in organs remote from the heart provides cardioprotection (remote ischemic conditioning). The present review characterizes the signal transduction underlying the conditioning phenomena, including their physical and chemical triggers, intracellular signal transduction, and effector mechanisms, notably in the mitochondria. Cardioprotective signal transduction appears as a highly concerted spatiotemporal program. Although the translation of ischemic postconditioning and remote ischemic conditioning protocols to patients with acute myocardial infarction has been fairly successful, the pharmacological recruitment of cardioprotective signaling has been largely disappointing to date.
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Affiliation(s)
- Gerd Heusch
- From the Institute for Pathophysiology, West German Heart and Vascular Centre, University of Essen Medical School, Essen, Germany.
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Lavie L. Oxidative stress in obstructive sleep apnea and intermittent hypoxia – Revisited – The bad ugly and good: Implications to the heart and brain. Sleep Med Rev 2015; 20:27-45. [DOI: 10.1016/j.smrv.2014.07.003] [Citation(s) in RCA: 289] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 07/13/2014] [Accepted: 07/14/2014] [Indexed: 12/14/2022]
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O'Leary BR, Fath MA, Bellizzi AM, Hrabe JE, Button AM, Allen BG, Case AJ, Altekruse S, Wagner BA, Buettner GR, Lynch CF, Hernandez BY, Cozen W, Beardsley RA, Keene J, Henry MD, Domann FE, Spitz DR, Mezhir JJ. Loss of SOD3 (EcSOD) Expression Promotes an Aggressive Phenotype in Human Pancreatic Ductal Adenocarcinoma. Clin Cancer Res 2015; 21:1741-51. [PMID: 25634994 DOI: 10.1158/1078-0432.ccr-14-1959] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 01/18/2015] [Indexed: 01/05/2023]
Abstract
PURPOSE Pancreatic ductal adenocarcinoma (PDA) cells are known to produce excessive amounts of reactive oxygen species (ROS), particularly superoxide, which may contribute to the aggressive and refractory nature of this disease. Extracellular superoxide dismutase (EcSOD) is an antioxidant enzyme that catalyzes the dismutation of superoxide in the extracellular environment. This study tests the hypothesis that EcSOD modulates PDA growth and invasion by modifying the redox balance in PDA. EXPERIMENTAL DESIGN We evaluated the prognostic significance of EcSOD in a human tissue microarray (TMA) of patients with PDA. EcSOD overexpression was performed in PDA cell lines and animal models of disease. The impact of EcSOD on PDA cell lines was evaluated with Matrigel invasion in combination with a superoxide-specific SOD mimic and a nitric oxide synthase (NOS) inhibitor to determine the mechanism of action of EcSOD in PDA. RESULTS Loss of EcSOD expression is a common event in PDA, which correlated with worse disease biology. Overexpression of EcSOD in PDA cell lines resulted in decreased invasiveness that appeared to be related to reactions of superoxide with nitric oxide. Pancreatic cancer xenografts overexpressing EcSOD also demonstrated slower growth and peritoneal metastasis. Overexpression of EcSOD or treatment with a superoxide-specific SOD mimic caused significant decreases in PDA cell invasive capacity. CONCLUSIONS These results support the hypothesis that loss of EcSOD leads to increased reactions of superoxide with nitric oxide, which contributes to the invasive phenotype. These results allow for the speculation that superoxide dismutase mimetics might inhibit PDA progression in human clinical disease.
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Affiliation(s)
| | - Melissa A Fath
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa
| | | | | | - Anna M Button
- Department of Biostatistics, University of Iowa, Iowa City, Iowa
| | - Bryan G Allen
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa
| | - Adam J Case
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa
| | | | - Brett A Wagner
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa
| | - Garry R Buettner
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa
| | - Charles F Lynch
- Department of Epidemiology, University of Iowa, Iowa City, Iowa
| | | | - Wendy Cozen
- University of Southern California, Los Angeles, California
| | | | | | - Michael D Henry
- Department of Microbiology, University of Iowa, Iowa City, Iowa
| | | | - Douglas R Spitz
- Department of Radiation Oncology, University of Iowa, Iowa City, Iowa
| | - James J Mezhir
- Department of Surgery, University of Iowa, Iowa City, Iowa. Department of Radiation Oncology, University of Iowa, Iowa City, Iowa.
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Nour M, Scalzo F, Liebeskind DS. Ischemia-reperfusion injury in stroke. INTERVENTIONAL NEUROLOGY 2014; 1:185-99. [PMID: 25187778 DOI: 10.1159/000353125] [Citation(s) in RCA: 220] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Despite ongoing advances in stroke imaging and treatment, ischemic and hemorrhagic stroke continue to debilitate patients with devastating outcomes at both the personal and societal levels. While the ultimate goal of therapy in ischemic stroke is geared towards restoration of blood flow, even when mitigation of initial tissue hypoxia is successful, exacerbation of tissue injury may occur in the form of cell death, or alternatively, hemorrhagic transformation of reperfused tissue. Animal models have extensively demonstrated the concept of reperfusion injury at the molecular and cellular levels, yet no study has quantified this effect in stroke patients. These preclinical models have also demonstrated the success of a wide array of neuroprotective strategies at lessening the deleterious effects of reperfusion injury. Serial multimodal imaging may provide a framework for developing therapies for reperfusion injury.
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Affiliation(s)
- May Nour
- Departments of Neurology and Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Calif., USA
| | - Fabien Scalzo
- Departments of Neurology and Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Calif., USA
| | - David S Liebeskind
- Departments of Neurology and Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Calif., USA
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Pagliaro P, Gattullo D, Penna C. Nitroglycerine and sodium trioxodinitrate: from the discovery to the preconditioning effect. J Cardiovasc Med (Hagerstown) 2014; 14:698-704. [PMID: 23695182 DOI: 10.2459/jcm.0b013e3283621ac6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The history began in the 19th century with Ascanio Sobrero (1812-1888), the discoverer of glycerol trinitrate (nitroglycerine, NTG), and with Angelo Angeli (1864-1931), the discoverer of sodium trioxodinitrate (Angeli's salt). It is likely that Angeli and Sobrero never met, but their two histories will join each other more than a century later. In fact, it has been discovered that both NTG and Angeli's salt are able to induce a preconditioning effect. As NTG has a long history as an antianginal drug its newly discovered property as a preconditioning agent has also been tested in humans. Angeli's salt properties as a preconditioning and inotropic agent have only been tested in animals so far.
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Affiliation(s)
- Pasquale Pagliaro
- Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, Torino, Italy
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Murphy E, Kohr M, Menazza S, Nguyen T, Evangelista A, Sun J, Steenbergen C. Signaling by S-nitrosylation in the heart. J Mol Cell Cardiol 2014; 73:18-25. [PMID: 24440455 PMCID: PMC4214076 DOI: 10.1016/j.yjmcc.2014.01.003] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/06/2014] [Accepted: 01/08/2014] [Indexed: 12/17/2022]
Abstract
Nitric oxide is a gaseous signaling molecule that is well-known for the Nobel prize-winning research that defined nitric oxide as a physiological regulator of blood pressure in the cardiovascular system. Nitric oxide can signal via the classical pathway involving activation of guanylyl cyclase or by a post-translational modification, referred to as S-nitrosylation (SNO) that can occur on cysteine residues of proteins. As proteins with cysteine residues are common, this allows for amplification of the nitric oxide signaling. This review will focus on the possible mechanisms through which SNO can alter protein function in cardiac cells, and the role of SNO occupancy in these mechanisms. The specific mechanisms that regulate protein SNO, including redox-dependent processes, will also be discussed. This article is part of a Special Issue entitled "Redox Signalling in the Cardiovascular System".
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Affiliation(s)
- Elizabeth Murphy
- Cardiac Physiology Laboratory, Systems Biology Center, NHLBI, NIH, USA.
| | - Mark Kohr
- Cardiac Physiology Laboratory, Systems Biology Center, NHLBI, NIH, USA; Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Sara Menazza
- Cardiac Physiology Laboratory, Systems Biology Center, NHLBI, NIH, USA
| | - Tiffany Nguyen
- Cardiac Physiology Laboratory, Systems Biology Center, NHLBI, NIH, USA
| | | | - Junhui Sun
- Cardiac Physiology Laboratory, Systems Biology Center, NHLBI, NIH, USA
| | - Charles Steenbergen
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, USA
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Moldovan NI, Anghelina M, Varadharaj S, Butt OI, Wang T, Yang F, Moldovan L, Zweier JL. Reoxygenation-derived toxic reactive oxygen/nitrogen species modulate the contribution of bone marrow progenitor cells to remodeling after myocardial infarction. J Am Heart Assoc 2014; 3:e000471. [PMID: 24419735 PMCID: PMC3959689 DOI: 10.1161/jaha.113.000471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background The core region of a myocardial infarction is notoriously unsupportive of cardiomyocyte survival. However, there has been less investigation of the potentially beneficial spontaneous recruitment of endogenous bone marrow progenitor cells (BMPCs) within infarcted areas. In the current study we examined the role of tissue oxygenation and derived toxic species in the control of BMPC engraftment during postinfarction heart remodeling. Methods and Results For assessment of cellular origin, local oxygenation, redox status, and fate of cells in the infarcted region, myocardial infarction in mice with or without LacZ+ bone marrow transplantation was induced by coronary ligation. Sham‐operated mice served as controls. After 1 week, LacZ+ BMPC‐derived cells were found inhomogeneously distributed into the infarct zone, with a lower density at its core. Electron paramagnetic resonance (EPR) oximetry showed that pO2 in the infarct recovered starting on day 2 post–myocardial infarction, concomitant with wall thinning and erythrocytes percolating through muscle microruptures. Paralleling this reoxygenation, increased generation of reactive oxygen/nitrogen species was detected at the infarct core. This process delineated a zone of diminished BMPC engraftment, and at 1 week infiltrating cells displayed immunoreactive 3‐nitrotyrosine and apoptosis. In vivo treatment with a superoxide dismutase mimetic significantly reduced reactive oxygen species formation and amplified BMPC accumulation. This treatment also salvaged wall thickness by 43% and left ventricular ejection fraction by 27%, with significantly increased animal survival. Conclusions BMPC engraftment in the infarct inversely mirrored the distribution of reactive oxygen/nitrogen species. Antioxidant treatment resulted in increased numbers of engrafted BMPCs, provided functional protection to the heart, and decreased the incidence of myocardial rupture and death.
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Affiliation(s)
- Nicanor I Moldovan
- Department of Internal Medicine/Division of Cardiovascular Medicine, The Ohio State University, Columbus, OH
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Foster CR, Daniel LL, Daniels CR, Dalal S, Singh M, Singh K. Deficiency of ataxia telangiectasia mutated kinase modulates cardiac remodeling following myocardial infarction: involvement in fibrosis and apoptosis. PLoS One 2013; 8:e83513. [PMID: 24358288 PMCID: PMC3865210 DOI: 10.1371/journal.pone.0083513] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 11/05/2013] [Indexed: 12/19/2022] Open
Abstract
Ataxia telangiectasia mutated kinase (ATM) is a cell cycle checkpoint protein activated in response to DNA damage. We recently reported that ATM plays a protective role in myocardial remodeling following β-adrenergic receptor stimulation. Here we investigated the role of ATM in cardiac remodeling using myocardial infarction (MI) as a model. Methods and Results: Left ventricular (LV) structure, function, apoptosis, fibrosis, and protein levels of apoptosis- and fibrosis-related proteins were examined in wild-type (WT) and ATM heterozygous knockout (hKO) mice 7 days post-MI. Infarct sizes were similar in both MI groups. However, infarct thickness was higher in hKO-MI group. Two dimensional M-mode echocardiography revealed decreased percent fractional shortening (%FS) and ejection fraction (EF) in both MI groups when compared to their respective sham groups. However, the decrease in %FS and EF was significantly greater in WT-MI vs hKO-MI. LV end systolic and diastolic diameters were greater in WT-MI vs hKO-MI. Fibrosis, apoptosis, and α-smooth muscle actin staining was significantly higher in hKO-MI vs WT-MI. MMP-2 protein levels and activity were increased to a similar extent in the infarct regions of both groups. MMP-9 protein levels were increased in the non-infarct region of WT-MI vs WT-sham. MMP-9 protein levels and activity were significantly lower in the infarct region of WT vs hKO. TIMP-2 protein levels similarly increased in both MI groups, whereas TIMP-4 protein levels were significantly lower in the infarct region of hKO group. Phosphorylation of p53 protein was higher, while protein levels of manganese superoxide dismutase were significantly lower in the infarct region of hKO vs WT. In vitro, inhibition of ATM using KU-55933 increased oxidative stress and apoptosis in cardiac myocytes.
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Affiliation(s)
- Cerrone R. Foster
- Department of Biomedical Sciences, James H Quillen College of Medicine, James H Quillen Veterans Affairs Medical Center, East Tennessee State University, Johnson City, Tennessee, United States of America
| | - Laura L. Daniel
- Department of Biomedical Sciences, James H Quillen College of Medicine, James H Quillen Veterans Affairs Medical Center, East Tennessee State University, Johnson City, Tennessee, United States of America
| | - Christopher R. Daniels
- Department of Biomedical Sciences, James H Quillen College of Medicine, James H Quillen Veterans Affairs Medical Center, East Tennessee State University, Johnson City, Tennessee, United States of America
| | - Suman Dalal
- Department of Biomedical Sciences, James H Quillen College of Medicine, James H Quillen Veterans Affairs Medical Center, East Tennessee State University, Johnson City, Tennessee, United States of America
| | - Mahipal Singh
- Department of Biomedical Sciences, James H Quillen College of Medicine, James H Quillen Veterans Affairs Medical Center, East Tennessee State University, Johnson City, Tennessee, United States of America
| | - Krishna Singh
- Department of Biomedical Sciences, James H Quillen College of Medicine, James H Quillen Veterans Affairs Medical Center, East Tennessee State University, Johnson City, Tennessee, United States of America
- * E-mail:
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Luo J, Obal D, Dimova N, Tang XL, Rokosh G. Cardiac myocyte-specific transgenic ecSOD targets mitochondria to protect against Ca(2+) induced permeability transition. Front Physiol 2013; 4:295. [PMID: 24194719 PMCID: PMC3810602 DOI: 10.3389/fphys.2013.00295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 09/27/2013] [Indexed: 11/13/2022] Open
Abstract
ecSOD function has prototypically been associated with the extracellular space due to its secretion and localization to the extracellular matrix. A myocyte-specific ecSOD transgenic mouse has shown that it can also be localized to the myocyte intracellular compartment and is capable of attenuating Reactive oxygen species (ROS) formation and increasing NO bioavailability after ischemia reperfusion. Here, the subcellular localization of transgenic ecSOD was further defined by subcellular fractionation, immunofluorescent confocal microscopy, and Western analysis. Its impact on mitochondrial function was assessed by mitochondrial permeability transition (MPT). ecSOD was found to exist in cytosolic and nuclear fractions in addition to membrane. Colocalization of ecSOD with myocardial mitochondria was further demonstrated by confocal microscopy and subcellular fractionation of mitochondria and Western analysis. Isolated ventricular myocytes from cardiac-specific transgenic ecSOD mice were protected from hypoxia reoxygenation injury. Increased ecSOD colocalization to myocardial mitochondria in ecSOD Tg hearts limited MPT in response to Ca(2+) challenge. These results demonstrate that ecSOD is not restricted to the extracellular space and can alter MPT response to Ca(2+) suggesting mitochondrial localization of ecSOD can affect key mitochondrial functions such as MPT which are integral to cell survival.
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Affiliation(s)
- Jianzhu Luo
- Division of Cardiovascular Medicine, Institute of Molecular Cardiology, University of Louisville , Louisville, KY, USA
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Farah C, Kleindienst A, Bolea G, Meyer G, Gayrard S, Geny B, Obert P, Cazorla O, Tanguy S, Reboul C. Exercise-induced cardioprotection: a role for eNOS uncoupling and NO metabolites. Basic Res Cardiol 2013; 108:389. [PMID: 24105420 DOI: 10.1007/s00395-013-0389-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 07/08/2013] [Accepted: 09/20/2013] [Indexed: 02/07/2023]
Abstract
Exercise is an efficient strategy for myocardial protection against ischemia-reperfusion (IR) injury. Although endothelial nitric oxide synthase (eNOS) is phosphorylated and activated during exercise, its role in exercise-induced cardioprotection remains unknown. This study investigated whether modulation of eNOS activation during IR could participate in the exercise-induced cardioprotection against IR injury. Hearts isolated from sedentary or exercised rats (5 weeks training) were perfused with a Langendorff apparatus and IR performed in the presence or absence of NOS inhibitors [N-nitro-L-arginine methyl ester, L-NAME or N5-(1-iminoethyl)-L-ornithine, L-NIO] or tetrahydrobiopterin (BH₄). Exercise training protected hearts against IR injury and this effect was abolished by L-NAME or by L-NIO treatment, indicating that exercise-induced cardioprotection is eNOS dependent. However, a strong reduction of eNOS phosphorylation at Ser1177 (eNOS-PSer1177) and of eNOS coupling during early reperfusion was observed in hearts from exercised rats (which showed higher eNOS-PSer1177 and eNOS dimerization at baseline) in comparison to sedentary rats. Despite eNOS uncoupling, exercised hearts had more S-nitrosylated proteins after early reperfusion and also less nitro-oxidative stress, indexed by lower malondialdehyde content and protein nitrotyrosination compared to sedentary hearts. Moreover, in exercised hearts, stabilization of eNOS dimers by BH4 treatment increased nitro-oxidative stress and then abolished the exercise-induced cardioprotection, indicating that eNOS uncoupling during IR is required for exercise-induced myocardial cardioprotection. Based on these results, we hypothesize that in the hearts of exercised animals, eNOS uncoupling associated with the improved myocardial antioxidant capacity prevents excessive NO synthesis and limits the reaction between NO and O₂·- to form peroxynitrite (ONOO⁻), which is cytotoxic.
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Affiliation(s)
- C Farah
- Laboratoire de Pharm-Ecologie Cardiovasculaire (EA4278), Faculty of Sciences, Avignon University, 33 rue Louis Pasteur, 84000, Avignon, France
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Zhu X, Zuo L. Characterization of oxygen radical formation mechanism at early cardiac ischemia. Cell Death Dis 2013; 4:e787. [PMID: 24008731 PMCID: PMC3789172 DOI: 10.1038/cddis.2013.313] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 06/12/2013] [Accepted: 07/03/2013] [Indexed: 12/31/2022]
Abstract
Myocardial ischemia–reperfusion (I/R) causes severe cardiac damage. Although the primary function of oxymyoglobin (Mb) has been considered to be cellular O2 storage and supply, previous research has suggested that Mb is a potentially protective element against I/R injury. However, the mechanism of its protective action is still largely unknown. With a real-time fluorescent technique, we observed that at the onset of ischemia, there was a small burst of superoxide (O2•–) release, as visualized in an isolated rat heart. Thus, we hypothesize that the formation of O2•– correlates to Mb due to a decrease in oxygen tension in the myocardium. Measurement of O2•– production in a Langendorff apparatus was performed using surface fluorometry. An increase in fluorescence was observed during the onset of ischemia in hearts perfused with a solution of hydroethidine, a fluorescent dye sensitive to intracellular O2•–. The increase of fluorescence in the ischemic heart was abolished by a superoxide dismutase mimic, carbon monoxide, or by Mb-knockout gene technology. Furthermore, we identified that O2•– was not generated from the intracellular endothelium but from the myocytes, which are a rich source of Mb. These results suggest that during the onset of ischemia, Mb is responsible for generating O2•–. This novel mechanism may shed light on the protective role of Mb in I/R injury.
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Affiliation(s)
- X Zhu
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Carballal S, Bartesaghi S, Radi R. Kinetic and mechanistic considerations to assess the biological fate of peroxynitrite. Biochim Biophys Acta Gen Subj 2013; 1840:768-80. [PMID: 23872352 DOI: 10.1016/j.bbagen.2013.07.005] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 06/25/2013] [Accepted: 07/04/2013] [Indexed: 01/21/2023]
Abstract
BACKGROUND Peroxynitrite, the product of the reaction between superoxide radicals and nitric oxide, is an elusive oxidant with a short half-life and a low steady-state concentration in biological systems; it promotes nitroxidative damage. SCOPE OF REVIEW We will consider kinetic and mechanistic aspects that allow rationalizing the biological fate of peroxynitrite from data obtained by a combination of methods that include fast kinetic techniques, electron paramagnetic resonance and kinetic simulations. In addition, we provide a quantitative analysis of peroxynitrite production rates and conceivable steady-state levels in living systems. MAJOR CONCLUSIONS The preferential reactions of peroxynitrite in vivo include those with carbon dioxide, thiols and metalloproteins; its homolysis represents only <1% of its fate. To note, carbon dioxide accounts for a significant fraction of peroxynitrite consumption leading to the formation of strong one-electron oxidants, carbonate radicals and nitrogen dioxide. On the other hand, peroxynitrite is rapidly reduced by peroxiredoxins, which represent efficient thiol-based peroxynitrite detoxification systems. Glutathione, present at mM concentration in cells and frequently considered a direct scavenger of peroxynitrite, does not react sufficiently fast with it in vivo; glutathione mainly inhibits peroxynitrite-dependent processes by reactions with secondary radicals. The detection of protein 3-nitrotyrosine, a molecular footprint, can demonstrate peroxynitrite formation in vivo. Basal peroxynitrite formation rates in cells can be estimated in the order of 0.1 to 0.5μMs(-1) and its steady-state concentration at ~1nM. GENERAL SIGNIFICANCE The analysis provides a handle to predict the preferential fate and steady-state levels of peroxynitrite in living systems. This is useful to understand pathophysiological aspects and pharmacological prospects connected to peroxynitrite. This article is part of a Special Issue entitled Current methods to study reactive oxygen species - pros and cons and biophysics of membrane proteins. Guest Editor: Christine Winterbourn.
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Affiliation(s)
- Sebastián Carballal
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay; Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
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