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The opposing roles of NO and oxidative stress in cardiovascular disease. Pharmacol Res 2016; 116:57-69. [PMID: 27988384 DOI: 10.1016/j.phrs.2016.12.017] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/15/2016] [Accepted: 12/13/2016] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) plays a pivotal role in the maintenance of cardiovascular homeostasis. A reduction in the bioavailability of endogenous NO, manifest as a decrease in the production and/or impaired signaling, is associated with many cardiovascular diseases including hypertension, atherosclerosis, stroke and heart failure. There is substantial evidence that reactive oxygen species (ROS), generated predominantly from NADPH oxidases (Nox), are responsible for the reduced NO bioavailability in vascular and cardiac pathologies. ROS can compromise NO function via a direct inactivation of NO, together with a reduction in NO synthesis and oxidation of its receptor, soluble guanylyl cyclase. Whilst nitrovasodilators are administered to compensate for the ROS-mediated loss in NO bioactivity, their clinical utility is limited due to the development of tolerance and resistance and systemic hypotension. Moreover, efforts to directly scavenge ROS with antioxidants has had limited clinical efficacy. This review outlines the therapeutic utility of NO-based therapeutics in cardiovascular diseases and describes the source and impact of ROS in these pathologies, with particular focus on the interaction with NO. Future therapeutic approaches in the treatment of cardiovascular diseases are highlighted with a focus on nitroxyl (HNO) donors as an alternative to traditional NO donors and the development of novel Nox inhibitors.
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Shah SJ, Kitzman DW, Borlaug BA, van Heerebeek L, Zile MR, Kass DA, Paulus WJ. Phenotype-Specific Treatment of Heart Failure With Preserved Ejection Fraction: A Multiorgan Roadmap. Circulation 2016; 134:73-90. [PMID: 27358439 DOI: 10.1161/circulationaha.116.021884] [Citation(s) in RCA: 664] [Impact Index Per Article: 83.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Heart failure (HF) with preserved ejection fraction (EF; HFpEF) accounts for 50% of HF cases, and its prevalence relative to HF with reduced EF continues to rise. In contrast to HF with reduced EF, large trials testing neurohumoral inhibition in HFpEF failed to reach a positive outcome. This failure was recently attributed to distinct systemic and myocardial signaling in HFpEF and to diversity of HFpEF phenotypes. In this review, an HFpEF treatment strategy is proposed that addresses HFpEF-specific signaling and phenotypic diversity. In HFpEF, extracardiac comorbidities such as metabolic risk, arterial hypertension, and renal insufficiency drive left ventricular remodeling and dysfunction through systemic inflammation and coronary microvascular endothelial dysfunction. The latter affects left ventricular diastolic dysfunction through macrophage infiltration, resulting in interstitial fibrosis, and through altered paracrine signaling to cardiomyocytes, which become hypertrophied and stiff because of low nitric oxide and cyclic guanosine monophosphate. Systemic inflammation also affects other organs such as lungs, skeletal muscle, and kidneys, leading, respectively, to pulmonary hypertension, muscle weakness, and sodium retention. Individual steps of these signaling cascades can be targeted by specific interventions: metabolic risk by caloric restriction, systemic inflammation by statins, pulmonary hypertension by phosphodiesterase 5 inhibitors, muscle weakness by exercise training, sodium retention by diuretics and monitoring devices, myocardial nitric oxide bioavailability by inorganic nitrate-nitrite, myocardial cyclic guanosine monophosphate content by neprilysin or phosphodiesterase 9 inhibition, and myocardial fibrosis by spironolactone. Because of phenotypic diversity in HFpEF, personalized therapeutic strategies are proposed, which are configured in a matrix with HFpEF presentations in the abscissa and HFpEF predispositions in the ordinate.
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Affiliation(s)
- Sanjiv J Shah
- From Division of Cardiology, Department of Medicine, and the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); Sections on Cardiovascular Medicine and Geriatrics, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, (B.A.B.); Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands (L.v.H., W.J.P.); Department of Cardiology, Onze Lieve Vrouw Gasthuis, Amsterdam, The Netherlands (L.v.H.); Department of Medicine, Medical University of South Carolina (MUSC) and the RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); and Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD (D.A.K.)
| | - Dalane W Kitzman
- From Division of Cardiology, Department of Medicine, and the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); Sections on Cardiovascular Medicine and Geriatrics, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, (B.A.B.); Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands (L.v.H., W.J.P.); Department of Cardiology, Onze Lieve Vrouw Gasthuis, Amsterdam, The Netherlands (L.v.H.); Department of Medicine, Medical University of South Carolina (MUSC) and the RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); and Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD (D.A.K.)
| | - Barry A Borlaug
- From Division of Cardiology, Department of Medicine, and the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); Sections on Cardiovascular Medicine and Geriatrics, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, (B.A.B.); Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands (L.v.H., W.J.P.); Department of Cardiology, Onze Lieve Vrouw Gasthuis, Amsterdam, The Netherlands (L.v.H.); Department of Medicine, Medical University of South Carolina (MUSC) and the RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); and Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD (D.A.K.)
| | - Loek van Heerebeek
- From Division of Cardiology, Department of Medicine, and the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); Sections on Cardiovascular Medicine and Geriatrics, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, (B.A.B.); Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands (L.v.H., W.J.P.); Department of Cardiology, Onze Lieve Vrouw Gasthuis, Amsterdam, The Netherlands (L.v.H.); Department of Medicine, Medical University of South Carolina (MUSC) and the RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); and Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD (D.A.K.)
| | - Michael R Zile
- From Division of Cardiology, Department of Medicine, and the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); Sections on Cardiovascular Medicine and Geriatrics, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, (B.A.B.); Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands (L.v.H., W.J.P.); Department of Cardiology, Onze Lieve Vrouw Gasthuis, Amsterdam, The Netherlands (L.v.H.); Department of Medicine, Medical University of South Carolina (MUSC) and the RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); and Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD (D.A.K.)
| | - David A Kass
- From Division of Cardiology, Department of Medicine, and the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); Sections on Cardiovascular Medicine and Geriatrics, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, (B.A.B.); Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands (L.v.H., W.J.P.); Department of Cardiology, Onze Lieve Vrouw Gasthuis, Amsterdam, The Netherlands (L.v.H.); Department of Medicine, Medical University of South Carolina (MUSC) and the RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); and Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD (D.A.K.)
| | - Walter J Paulus
- From Division of Cardiology, Department of Medicine, and the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); Sections on Cardiovascular Medicine and Geriatrics, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, (B.A.B.); Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands (L.v.H., W.J.P.); Department of Cardiology, Onze Lieve Vrouw Gasthuis, Amsterdam, The Netherlands (L.v.H.); Department of Medicine, Medical University of South Carolina (MUSC) and the RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); and Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD (D.A.K.).
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Mikhed Y, Fahrer J, Oelze M, Kröller-Schön S, Steven S, Welschof P, Zinßius E, Stamm P, Kashani F, Roohani S, Kress JM, Ullmann E, Tran LP, Schulz E, Epe B, Kaina B, Münzel T, Daiber A. Nitroglycerin induces DNA damage and vascular cell death in the setting of nitrate tolerance. Basic Res Cardiol 2016; 111:52. [DOI: 10.1007/s00395-016-0571-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 06/07/2016] [Accepted: 06/21/2016] [Indexed: 12/13/2022]
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Anti-hypertensive property of a nickel-piperazine/NO donor in spontaneously hypertensive rats. Pharmacol Res 2016; 107:352-359. [DOI: 10.1016/j.phrs.2016.03.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 03/16/2016] [Accepted: 03/16/2016] [Indexed: 12/13/2022]
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Moreira-Silva S, Urbano J, Nogueira-Silva L, Bettencourt P, Pimenta J. Impact of Chronic Nitrate Therapy in Patients With Ischemic Heart Failure. J Cardiovasc Pharmacol Ther 2016; 21:466-70. [PMID: 26940569 DOI: 10.1177/1074248416634464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 12/14/2015] [Indexed: 11/15/2022]
Abstract
PURPOSE There is a lack of knowledge on the effects of nitrates alone in heart failure (HF). We aimed to assess the impact of nitrates use in the occurrence of ischemic events in patients with ischemic HF attending an HF clinic. METHODS We performed a retrospective analysis of a cohort of 632 patients managed in an HF clinic between January 2000 and December 2011. Patients with ischemic etiology were selected (n = 290). Patients were classified according to chronic nitrates use (n = 83 nitrates users vs n = 194) and followed up for 5 years for the occurrence of fatal or nonfatal myocardial infarction or stroke. RESULTS Nitrates users had more frequently diabetes, dyslipidemia, and higher body mass index but were less frequently treated with statins. Thirty adverse events were recorded (n = 16 in nitrates group). Variables significantly associated with the occurrence of the end point in univariate analysis were arterial hypertension, diabetes, and nitrates use. Male gender, beta-blockers, statin, and clopidogrel use had a protective effect on the occurrence of the end point. In multivariate analysis, nitrates use remained an independent predictor of adverse outcome when adjusted for each of the variables: arterial hypertension, gender, diabetes, beta-blocker, and clopidogrel use; however, when adjusted for statin use, nitrates were no longer associated with the outcome. CONCLUSION Long-term nitrates use in patients with ischemic HF was associated with higher occurrence of ischemic events, defined as fatal or nonfatal myocardial infarction or stroke. Our results, although from a retrospective analysis, do not support a role for chronic nitrate use in HF.
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Affiliation(s)
- Sofia Moreira-Silva
- Department of Internal Medicine, Centro Hospitalar São João, Porto, Portugal
| | - Joana Urbano
- Department of Internal Medicine, Centro Hospitalar São João, Porto, Portugal
| | - Luís Nogueira-Silva
- Department of Internal Medicine, Centro Hospitalar São João, Porto, Portugal Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - Paulo Bettencourt
- Department of Internal Medicine, Centro Hospitalar São João, Porto, Portugal Department of Medicine & Unit of Cardiovascular Research & Development, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Joana Pimenta
- Department of Internal Medicine, Centro Hospitalar São João, Porto, Portugal Department of Medicine & Unit of Cardiovascular Research & Development, Faculty of Medicine, University of Porto, Porto, Portugal
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Kovács Á, Alogna A, Post H, Hamdani N. Is enhancing cGMP-PKG signalling a promising therapeutic target for heart failure with preserved ejection fraction? Neth Heart J 2016; 24:268-74. [PMID: 26924822 PMCID: PMC4796050 DOI: 10.1007/s12471-016-0814-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/21/2016] [Indexed: 01/09/2023] Open
Abstract
Heart failure with preserved ejection fraction, i.e. HFpEF, is highly prevalent in ageing populations, accounting for more than 50 % of all cases of heart failure in Western societies, and is closely associated with comorbidities such as obesity, diabetes and arterial hypertension. However, all large multicentre trials of potential HFpEF treatments conducted to date have failed to produce positive outcomes. These disappointing results suggest that a 'one size fits all' strategy may be ill-suited to HFpEF and support the use of tailored, personalised therapeutic approaches with specific treatments designed for specific comorbidity-related HFpEF phenotypes. The accumulation of a multitude of cardiovascular comorbidities over time leads to increased systemic inflammation, oxidative stress and coronary microvascular endothelial inflammation, eventually resulting in degradation of cyclic guanosine monophosphate (cGMP) via multiple pathways, thereby reducing protein kinase G (PKG) activity. The importance of cGMP-PKG pathway modulation is supported by growing evidence that suggests that this pathway may be a promising therapeutic target, evidence that is mainly based on its role in the phosphorylation of the giant cytoskeletal protein titin. This review will focus on the preclinical and early clinical evidence in the field of cGMP-enhancing therapies and PKG activation.
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Affiliation(s)
- Á Kovács
- Department of Cardiovascular Physiology, Ruhr University Bochum, Bochum, Germany
| | - A Alogna
- Department of Cardiology, Charité Berlin Campus Virchow, Berlin, Germany
| | - H Post
- Department of Cardiology, Charité Berlin Campus Virchow, Berlin, Germany
| | - N Hamdani
- Department of Cardiovascular Physiology, Ruhr University Bochum, Bochum, Germany.
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57
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Ter Maaten JM, Damman K, Verhaar MC, Paulus WJ, Duncker DJ, Cheng C, van Heerebeek L, Hillege HL, Lam CSP, Navis G, Voors AA. Connecting heart failure with preserved ejection fraction and renal dysfunction: the role of endothelial dysfunction and inflammation. Eur J Heart Fail 2016; 18:588-98. [PMID: 26861140 DOI: 10.1002/ejhf.497] [Citation(s) in RCA: 226] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 01/09/2016] [Accepted: 01/12/2015] [Indexed: 12/17/2022] Open
Abstract
Renal dysfunction in heart failure with preserved ejection fraction (HFpEF) is common and is associated with increased mortality. Impaired renal function is also a risk factor for developing HFpEF. A new paradigm for HFpEF, proposing a sequence of events leading to myocardial remodelling and dysfunction in HFpEF, was recently introduced, involving inflammatory, microvascular, and cardiac components. The kidney might play a key role in this systemic process. Renal impairment causes metabolic and systemic derangements in circulating factors, causing an activated systemic inflammatory state and endothelial dysfunction, which may lead to cardiomyocyte stiffening, hypertrophy, and interstitial fibrosis via cross-talk between the endothelium and cardiomyocyte compartments. Here, we review the role of endothelial dysfunction and inflammation to explain the link between renal dysfunction and HFpEF, which allows for identification of new early risk markers, prognostic factors, and unique targets for intervention.
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Affiliation(s)
- Jozine M Ter Maaten
- University of Groningen, Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
| | - Kevin Damman
- University of Groningen, Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
| | - Marianne C Verhaar
- University Medical Center Utrecht, Department of Nephrology and Hypertension, Utrecht, The Netherlands
| | - Walter J Paulus
- Department of Physiology, Cardiology, Pathology, and Surgery, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Dirk J Duncker
- Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Caroline Cheng
- University Medical Center Utrecht, Department of Nephrology and Hypertension, Utrecht, The Netherlands.,Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Loek van Heerebeek
- Department of Physiology, Cardiology, Pathology, and Surgery, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Hans L Hillege
- University of Groningen, Department of Epidemiology, University Medical Center Groningen, Groningen, The Netherlands
| | - Carolyn S P Lam
- National Heart Centre Singapore and, Duke-National University of Singapore Graduate School Medicine, Singapore
| | - Gerjan Navis
- University of Groningen, Department of Nephrology, University Medical Center Groningen, Groningen, The Netherlands
| | - Adriaan A Voors
- University of Groningen, Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
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58
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Daiber A, Münzel T. Organic Nitrate Therapy, Nitrate Tolerance, and Nitrate-Induced Endothelial Dysfunction: Emphasis on Redox Biology and Oxidative Stress. Antioxid Redox Signal 2015; 23:899-942. [PMID: 26261901 PMCID: PMC4752190 DOI: 10.1089/ars.2015.6376] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Organic nitrates, such as nitroglycerin (GTN), isosorbide-5-mononitrate and isosorbide dinitrate, and pentaerithrityl tetranitrate (PETN), when given acutely, have potent vasodilator effects improving symptoms in patients with acute and chronic congestive heart failure, stable coronary artery disease, acute coronary syndromes, or arterial hypertension. The mechanisms underlying vasodilation include the release of •NO or a related compound in response to intracellular bioactivation (for GTN, the mitochondrial aldehyde dehydrogenase [ALDH-2]) and activation of the enzyme, soluble guanylyl cyclase. Increasing cyclic guanosine-3',-5'-monophosphate (cGMP) levels lead to an activation of the cGMP-dependent kinase I, thereby causing the relaxation of the vascular smooth muscle by decreasing intracellular calcium concentrations. The hemodynamic and anti-ischemic effects of organic nitrates are rapidly lost upon long-term (low-dose) administration due to the rapid development of tolerance and endothelial dysfunction, which is in most cases linked to increased intracellular oxidative stress. Enzymatic sources of reactive oxygen species under nitrate therapy include mitochondria, NADPH oxidases, and an uncoupled •NO synthase. Acute high-dose challenges with organic nitrates cause a similar loss of potency (tachyphylaxis), but with distinct pathomechanism. The differences among organic nitrates are highlighted regarding their potency to induce oxidative stress and subsequent tolerance and endothelial dysfunction. We also address pleiotropic effects of organic nitrates, for example, their capacity to stimulate antioxidant pathways like those demonstrated for PETN, all of which may prevent adverse effects in response to long-term therapy. Based on these considerations, we will discuss and present some preclinical data on how the nitrate of the future should be designed.
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Affiliation(s)
- Andreas Daiber
- The 2nd Medical Clinic, Medical Center of the Johannes Gutenberg University , Mainz, Germany
| | - Thomas Münzel
- The 2nd Medical Clinic, Medical Center of the Johannes Gutenberg University , Mainz, Germany
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Giuseppe C, Paul J, Hans-Ulrich I. Use of nitrates in ischemic heart disease. Expert Opin Pharmacother 2015; 16:1567-72. [DOI: 10.1517/14656566.2015.1052742] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zakeri R, Levine JA, Koepp GA, Borlaug BA, Chirinos JA, LeWinter M, VanBuren P, Dávila-Román VG, de Las Fuentes L, Khazanie P, Hernandez A, Anstrom K, Redfield MM. Nitrate's effect on activity tolerance in heart failure with preserved ejection fraction trial: rationale and design. Circ Heart Fail 2015; 8:221-8. [PMID: 25605640 PMCID: PMC4304404 DOI: 10.1161/circheartfailure.114.001598] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 09/03/2014] [Indexed: 01/09/2023]
Affiliation(s)
- Rosita Zakeri
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - James A Levine
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Gabriel A Koepp
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Barry A Borlaug
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Julio A Chirinos
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Martin LeWinter
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Peter VanBuren
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Victor G Dávila-Román
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Lisa de Las Fuentes
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Prateeti Khazanie
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Adrian Hernandez
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Kevin Anstrom
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.)
| | - Margaret M Redfield
- From the Mayo Clinic, Rochester, MN (R.Z., B.A.B., M.M.R.); Mayo Clinic, Scottsdale, AZ (J.A.L., G.A.K.); University of Pennsylvania, Philadelphia (J.A.C.); University of Vermont College of Medicine, Burlington (M.L., P.V.); Washington University School of Medicine, St Louis, MO (V.G.D.-R., L.d.l.F.); and Duke Clinical Research Institute, Durham, NC (P.K., A.H., K.A.).
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Münzel T, Steven S, Daiber A. Organic nitrates: update on mechanisms underlying vasodilation, tolerance and endothelial dysfunction. Vascul Pharmacol 2014; 63:105-13. [PMID: 25446162 DOI: 10.1016/j.vph.2014.09.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/15/2014] [Accepted: 09/20/2014] [Indexed: 10/24/2022]
Abstract
Given acutely, organic nitrates, such as nitroglycerin (GTN), isosorbide mono- and dinitrates (ISMN, ISDN), and pentaerythrityl tetranitrate (PETN), have potent vasodilator and anti-ischemic effects in patients with acute coronary syndromes, acute and chronic congestive heart failure and arterial hypertension. During long-term treatment, however, side effects such as nitrate tolerance and endothelial dysfunction occur, and therapeutic efficacy of these drugs rapidly vanishes. Recent experimental and clinical studies have revealed that organic nitrates per se are not just nitric oxide (NO) donors, but rather a quite heterogeneous group of drugs considerably differing for mechanisms underlying vasodilation and the development of endothelial dysfunction and tolerance. Based on this, we propose that the term nitrate tolerance should be avoided and more specifically the terms of GTN, ISMN and ISDN tolerance should be used. The present review summarizes preclinical and clinical data concerning organic nitrates. Here we also emphasize the consequences of chronic nitrate therapy on the supersensitivity of the vasculature to vasoconstriction and on the increased autocrine expression of endothelin. We believe that these so far rather neglected and underestimated side effects of chronic therapy with at least GTN and ISMN are clinically important.
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Affiliation(s)
- Thomas Münzel
- Department of Cardiology and Angiology, University Medical Center, Mainz, Germany.
| | - Sebastian Steven
- Department of Cardiology and Angiology, University Medical Center, Mainz, Germany
| | - Andreas Daiber
- Department of Cardiology and Angiology, University Medical Center, Mainz, Germany
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62
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Abstract
The interaction between antioxidant glutathione and the free thiol in susceptible cysteine residues of proteins leads to reversible protein S-glutathionylation. This reaction ensures cellular homeostasis control (as a common redox-dependent post-translational modification associated with signal transduction) and intervenes in oxidative stress-related cardiovascular pathology (as initiated by redox imbalance). The purpose of this review is to evaluate the recent knowledge on protein S-glutathionylation in terms of chemistry, broad cellular intervention, specific quantification, and potential for therapeutic exploitation. The data bases searched were Medline and PubMed, from 2009 to 2014 (term: glutathionylation). Protein S-glutathionylation ensures protection of protein thiols against irreversible over-oxidation, operates as a biological redox switch in both cell survival (influencing kinases and protein phosphatases pathways) and cell death (by potentiation of apoptosis), and cross-talks with phosphorylation and with S-nitrosylation. Collectively, protein S-glutathionylation appears as a valuable biomarker for oxidative stress, with potential for translation into novel therapeutic strategies.
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Affiliation(s)
- Doina Popov
- Institute of Cellular Biology and Pathology "N. Simionescu" of the Romanian Academy , 8, B.P. Hasdeu Street, Bucharest 050568 , Romania
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63
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Chen J, Chen MH, Guo YL, Zhu CG, Xu RX, Dong Q, Li JJ. Plasma big endothelin-1 level and the severity of new-onset stable coronary artery disease. J Atheroscler Thromb 2014; 22:126-35. [PMID: 25195814 DOI: 10.5551/jat.26401] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM To investigate the usefulness of the plasma big endothelin-1 (big ET-1) level in predicting the severity of new-onset stable angiography-proven coronary artery disease (CAD). METHODS A total of 963 consecutive stable CAD patients with more than 50% stenosis in at least one main vessel were enrolled. The patients were classified into the three groups according to the tertile of the Gensini score (GS, low GS <20, n=300; intermediate GS 20-40, n=356 and high GS >40, n=307), and the relationship between the big ET-1 level and GS was evaluated. RESULTS The plasma levels of big ET-1 increased significantly in association with increases in the GS tertile (p=0.007). A multivariate analysis suggested that the plasma big ET-1 level was an independent predictor for a high GS (OR=2.26, 95%CI: 1.23-4.15, p=0.009), and there was a positive correlation between the big ET-1 level and the GS (r=0.20, p=0.000). The area under the receiver operating characteristic curve (AUC) for the big ET-1 level in predicting a high GS was 0.64 (95% CI 0.60-0.68, p=0.000), and the optimal cutoff value for the plasma big ET-1 level for predicting a high GS was 0.34 fmol/mL, with a sensitivity of 62.6% and specificity of 60.3%. In the high-big ET-1 level group (≥0.34 fmol/mL), there were significantly increased rates of three-vessel disease (43.6% vs. 35.4%, p=0.017) and a high GS [31 (17-54) vs. 24 (16-44), p=0.001] compared with that observed in the low-big ET-1 level group. CONCLUSIONS The present findings indicate that the plasma big ET-1 level is a useful predictor of the severity of new-onset stable CAD associated with significant stenosis.
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Affiliation(s)
- Juan Chen
- Division of Dyslipidemia, State Key Laboratory of Cardiovascular Disease, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Cardiology, The Central Hospital of Wuhan, Wuhan, China
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64
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Pieske B, Butler J, Filippatos G, Lam C, Maggioni AP, Ponikowski P, Shah S, Solomon S, Kraigher-Krainer E, Samano ET, Scalise AV, Müller K, Roessig L, Gheorghiade M. Rationale and design of the SOluble guanylate Cyclase stimulatoR in heArT failurE Studies (SOCRATES). Eur J Heart Fail 2014; 16:1026-38. [DOI: 10.1002/ejhf.135] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 06/06/2014] [Accepted: 06/13/2014] [Indexed: 12/24/2022] Open
Affiliation(s)
- Burkert Pieske
- Department of Cardiology; Medical University Graz; Graz Austria
| | - Javed Butler
- Division of Cardiology; Emory University School of Medicine; Atlanta GA USA
| | | | - Carolyn Lam
- Cardiovascular Research Institute; Singapore
| | - Aldo Pietro Maggioni
- Associazione Nazionale Medici Cardiologi Ospedalieri Research Center; Florence Italy
| | - Piotr Ponikowski
- Department of Heart Diseases; Medical University; Military Hospital Wroclaw Poland
| | - Sanjiv Shah
- Division of Cardiology, Department of Medicine; Northwestern University Feinberg School of Medicine; Chicago IL USA
| | - Scott Solomon
- Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
| | | | | | | | | | | | - Mihai Gheorghiade
- Division of Cardiology, Department of Medicine; Northwestern University Feinberg School of Medicine; Chicago IL USA
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65
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McEniery CM, Cockcroft JR, Roman MJ, Franklin SS, Wilkinson IB. Central blood pressure: current evidence and clinical importance. Eur Heart J 2014; 35:1719-25. [PMID: 24459197 PMCID: PMC4155427 DOI: 10.1093/eurheartj/eht565] [Citation(s) in RCA: 418] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 11/27/2013] [Accepted: 12/17/2013] [Indexed: 01/09/2023] Open
Abstract
Pressure measured with a cuff and sphygmomanometer in the brachial artery is accepted as an important predictor of future cardiovascular risk. However, systolic pressure varies throughout the arterial tree, such that aortic (central) systolic pressure is actually lower than corresponding brachial values, although this difference is highly variable between individuals. Emerging evidence now suggests that central pressure is better related to future cardiovascular events than is brachial pressure. Moreover, anti-hypertensive drugs can exert differential effects on brachial and central pressure. Therefore, basing treatment decisions on central, rather than brachial pressure, is likely to have important implications for the future diagnosis and management of hypertension. Such a paradigm shift will, however, require further, direct evidence that selectively targeting central pressure, brings added benefit, over and above that already provided by brachial artery pressure.
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Affiliation(s)
- Carmel M McEniery
- Clinical Pharmacology Unit, University of Cambridge, Addenbrooke's Hospital, Box 110, Cambridge CB2 2QQ, UK
| | - John R Cockcroft
- Department of Cardiology, Wales Heart Research Institute, Cardiff CF14 4XN, UK
| | - Mary J Roman
- Division of Cardiology, Weill Cornell Medical College, New York, NY 10021, USA
| | - Stanley S Franklin
- University of California, UCI School of Medicine, Irvine, CA 92697-4101, USA
| | - Ian B Wilkinson
- Clinical Pharmacology Unit, University of Cambridge, Addenbrooke's Hospital, Box 110, Cambridge CB2 2QQ, UK
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66
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Knorr M, Hausding M, Pfeffer A, Jurk K, Jansen T, Schwierczek K, Oelze M, Kröller-Schön S, Schulz E, Wenzel P, Gori T, Burgin K, Sartor D, Scherhag A, Münzel T, Daiber A. In vitro and in vivo characterization of a new organic nitrate hybrid drug covalently bound to pioglitazone. Pharmacology 2014; 93:203-15. [PMID: 24923291 DOI: 10.1159/000361052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 03/03/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS Organic nitrates represent a group of nitrovasodilators that are clinically used for the treatment of ischemic heart disease. The new compound CLC-3000 is an aminoethyl nitrate (AEN) derivative of pioglitazone, a thiazolidinedione antidiabetic agent combining the peroxisome proliferator-activated receptor γ agonist activity of pioglitazone with the NO-donating activity of the nitrate moiety. METHODS In vitro and in vivo characterization was performed by isometric tension recording, platelet function, bleeding time and detection of oxidative stress. RESULTS In vitro, CLC-3000 displayed more potent vasodilation than pioglitazone alone or classical nitrates. In vitro, some effects on oxidative stress parameters were observed. Authentic AEN or the AEN-containing linker CLC-1275 displayed antiaggregatory effects. In vivo treatment with CLC-3000 for 7 days did neither induce endothelial dysfunction nor nitrate tolerance nor oxidative stress. Acute or chronic administration of AEN increased the tail vein bleeding time in mice. CONCLUSION In summary, the results of these studies demonstrate that CLC-3000 contains a vasodilative and antithrombotic activity that is not evident with pioglitazone alone, and that 7 days of exposure in vivo showed no typical signs of nitrate tolerance, endothelial dysfunction or other safety concerns in Wistar rats.
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Affiliation(s)
- Maike Knorr
- Molekulare Kardiologie, II. Medizinische Klinik und Poliklinik, Klinikum der Johannes Gutenberg-Universität Mainz, Mainz, Germany
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67
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De Mey JGR, Vanhoutte PM. End o' the line revisited: moving on from nitric oxide to CGRP. Life Sci 2014; 118:120-8. [PMID: 24747136 DOI: 10.1016/j.lfs.2014.04.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 04/04/2014] [Accepted: 04/05/2014] [Indexed: 12/24/2022]
Abstract
When endothelin-1(ET-1) was discovered it was hailed as the prototypical endothelium-derived contracting factor (EDCF). However, over the years little evidence emerged convincingly demonstrating that the peptide actually contributes to moment-to-moment changes in vascular tone elicited by endothelial cells. This has been attributed to the profound inhibitory effect of nitric oxide (NO) on both the production (by the endothelium) and the action (on vascular smooth muscle) of ET-1. Hence, the peptide is likely to initiate acute changes in vascular diameter only under extreme conditions of endothelial dysfunction when the NO bioavailability is considerably reduced if not absent. The present essay discusses whether or not this concept should be revised, in particular in view of the potent inhibitory effect exerted by calcitonin gene related peptide (CGRP) released from sensorimotor nerves on vasoconstrictor responses to ET-1.
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Affiliation(s)
- Jo G R De Mey
- Institute of Molecular Medicine, University of South Denmark, Odense, Denmark; Cardiovascular Research Institute Maastricht, Maastricht, the Netherlands
| | - Paul M Vanhoutte
- Institute of Molecular Medicine, University of South Denmark, Odense, Denmark; Department of Pharmacology and Pharmacy and State Key Laboratory for Pharmaceutical Biotechnology, University of Hong Kong, Hong Kong, China.
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69
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Greene SJ, Gheorghiade M, Borlaug BA, Pieske B, Vaduganathan M, Burnett JC, Roessig L, Stasch JP, Solomon SD, Paulus WJ, Butler J. The cGMP signaling pathway as a therapeutic target in heart failure with preserved ejection fraction. J Am Heart Assoc 2013; 2:e000536. [PMID: 24334823 PMCID: PMC3886746 DOI: 10.1161/jaha.113.000536] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Stephen J Greene
- Center for Cardiovascular Innovation, Northwestern University Feinberg School of Medicine, Chicago, IL
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70
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Rassaf T, Kelm M. Isosorbide-5-mononitrate and endothelial function: a wolf in sheep's clothing. Eur Heart J 2013; 34:3173-4. [DOI: 10.1093/eurheartj/ehs214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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71
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Chen CA, De Pascali F, Basye A, Hemann C, Zweier JL. Redox modulation of endothelial nitric oxide synthase by glutaredoxin-1 through reversible oxidative post-translational modification. Biochemistry 2013; 52:6712-23. [PMID: 23977830 DOI: 10.1021/bi400404s] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
S-Glutathionylation is a redox-regulated modification that uncouples endothelial nitric oxide synthase (eNOS), switching its function from nitric oxide (NO) synthesis to (•)O2(-) generation, and serves to regulate vascular function. While in vitro or in vivo eNOS S-glutathionylation with modification of Cys689 and Cys908 of its reductase domain is triggered by high levels of glutathione disulfide (GSSG) or oxidative thiyl radical formation, it remains unclear how this process may be reversed. Glutaredoxin-1 (Grx1), a cytosolic and glutathione-dependent enzyme, can reverse protein S-glutathionylation; however, its role in regulating eNOS S-glutathionylation remains unknown. We demonstrate that Grx1 in the presence of glutathione (GSH) (1 mM) reverses GSSG-mediated eNOS S-glutathionylation with restoration of NO synthase activity. Because Grx1 also catalyzes protein S-glutathionylation with an increased [GSSG]/[GSH] ratio, we measured its effect on eNOS S-glutathionylation when the [GSSG]/[GSH] ratio was >0.2, which can occur in cells and tissues under oxidative stress, and observed an increased level of eNOS S-glutathionylation with a marked decrease in eNOS activity without uncoupling. This eNOS S-glutathionylation was reversed with a decrease in the [GSSG]/[GSH] ratio to <0.1. Liquid chromatography and tandem mass spectrometry identified a new site of eNOS S-glutathionylation by Grx1 at Cys382, on the surface of the oxygenase domain, without modification of Cys689 or Cys908, each of which is buried within the reductase. Furthermore, Grx1 was demonstrated to be a protein partner of eNOS in vitro and in normal endothelial cells, supporting its role in eNOS redox regulation. In endothelial cells, Grx1 inhibition or gene silencing increased the level of eNOS S-glutathionylation and decreased the level of cellular NO generation. Thus, Grx1 can exert an important role in the redox regulation of eNOS in cells.
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Affiliation(s)
- Chun-An Chen
- Department of Emergency Medicine and ‡Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University , Columbus, Ohio 43210, United States
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Kubesova HM, Weber P, Meluzinova H, Bielakova K, Matejovsky J. Benefits and pitfalls of cardiovascular medication in seniors. Wien Klin Wochenschr 2013; 125:425-36. [PMID: 23846454 DOI: 10.1007/s00508-013-0395-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 06/16/2013] [Indexed: 10/26/2022]
Abstract
Authors analyze actual situation in treatment of cardiovascular diseases in older patients. Different groups of recommended drugs are discussed separately; possible risks for elderly patients are stressed. Angiotensin converting enzyme inhibitors-this group is widely used in older patients because of their hypotensive effect, positive influence on cardiac failure, and positive modulation of endothelial dysfunction. The risk of hyperkalemia must be considered. Antiaggregants and anticoagulants are proved as potent prophylactic treatment, but the associated risk of gastrointestinal bleeding must be weighed very carefully. Bradycardia related to β-blockers, especially in combination with other medications lowering the heart rate must be taken into account. Otherwise, this group brings the highest profit in cardiovascular diseases as for morbidity and mortality. Attention is paid to calcium channel blockers, statins, diuretics, nitrates, and digoxin. A table listing the possible side effects and clinical symptoms of overdose by medications most frequently used in the elderly concludes the article.
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Affiliation(s)
- Hana Matejovska Kubesova
- Department of Internal Medicine, Geriatrics and Practical Medicine, Masaryk University Faculty of Medicine and Brno Faculty Hospital, Czech Republic.
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