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Chavda VP, Vuppu S, Balar PC, Mishra T, Bezbaruah R, Teli D, Sharma N, Alom S. Propolis in the management of cardiovascular disease. Int J Biol Macromol 2024; 266:131219. [PMID: 38556227 DOI: 10.1016/j.ijbiomac.2024.131219] [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: 09/09/2023] [Revised: 03/23/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Propolis is a resinous compound that is obtained from honey bees. It consists of numerous chemical constituents that impart different therapeutic action. The heart is the core of the body and cardiovascular disease (CVD) is a burden for the human being. This article emphasizes how propolis is fruitful in the management of various CVDs. SCOPE AND APPROACH This review focuses on how various constituents of the propolis (such as terpenes, flavonoids, phenolics, etc.) impart cardio protective actions. KEY FINDING AND CONCLUSION With the support of various clinical trials and research outcomes, it was concluded that propolis owns niche cardio protective properties that can be a boon for various cardiac problems (both in preventive and therapeutic action) such as atherosclerosis, excessive angiogenesis, hypertension, and many more.
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Affiliation(s)
- Vivek P Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, LM College of Pharmacy, Ahmedabad 380009, Gujarat, India.
| | - Suneetha Vuppu
- Department of Biotechnology, Science, Innovation, Society Research lab 115, Hexagon (SMV), Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.
| | - Pankti C Balar
- Pharmacy Section, LM College of Pharmacy, Ahmedabad 380009, Gujarat, India
| | - Toshika Mishra
- Department of Biotechnology, Science, Innovation, Society Research lab 115, Hexagon (SMV), Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Rajashri Bezbaruah
- Institute of Pharmacy, Assam medical College and hospital, Dibrugarh, Assam, India
| | - Divya Teli
- Department of Pharmaceutics and Pharmaceutical Technology, LM College of Pharmacy, Ahmedabad 380009, Gujarat, India
| | - Nikita Sharma
- Department of Biotechnology, Science, Innovation, Society Research lab 115, Hexagon (SMV), Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Shahnaz Alom
- Girijananda Chowdhury Institute of Pharmaceutical Science, Girijananda Chowdhury University, Tezpur, Sonitpur, Assam, India
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2
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Luna-Marco C, Iannantuoni F, Hermo-Argibay A, Devos D, Salazar JD, Víctor VM, Rovira-Llopis S. Cardiovascular benefits of SGLT2 inhibitors and GLP-1 receptor agonists through effects on mitochondrial function and oxidative stress. Free Radic Biol Med 2024; 213:19-35. [PMID: 38220031 DOI: 10.1016/j.freeradbiomed.2024.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/16/2024]
Abstract
Overloaded glucose levels in several metabolic diseases such as type 2 diabetes (T2D) can lead to mitochondrial dysfunction and enhanced production of reactive oxygen species (ROS). Oxidative stress and altered mitochondrial homeostasis, particularly in the cardiovascular system, contribute to the development of chronic comorbidities of diabetes. Diabetes-associated hyperglycemia and dyslipidemia can directly damage vascular vessels and lead to coronary artery disease or stroke, and indirectly damage other organs and lead to kidney dysfunction, known as diabetic nephropathy. The new diabetes treatments include Na+-glucose cotransporter 2 inhibitors (iSGLT2) and glucagon-like 1 peptide receptor agonists (GLP-1RA), among others. The iSGLT2 are oral anti-diabetic drugs, whereas GLP-1RA are preferably administered through subcutaneous injection, even though GLP-1RA oral formulations have recently become available. Both therapies are known to improve both carbohydrate and lipid metabolism, as well as to improve cardiovascular and cardiorenal outcomes in diabetic patients. In this review, we present an overview of current knowledge on the relationship between oxidative stress, mitochondrial dysfunction, and cardiovascular therapeutic benefits of iSGLT2 and GLP-1RA. We explore the benefits, limits and common features of the treatments and remark how both are an interesting target in the prevention of obesity, T2D and cardiovascular diseases, and emphasize the lack of a complete understanding of the underlying mechanism of action.
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Affiliation(s)
- Clara Luna-Marco
- INCLIVA (Biomedical Research Institute Valencia), Valencia, Spain
| | - Francesca Iannantuoni
- Service of di Immunohematology and Transfusion Medicine, Ospedale Infermi, AUSL Romagna, Rimini, Italy
| | - Alberto Hermo-Argibay
- Service of Endocrinology and Nutrition, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), University Hospital Doctor Peset, Valencia, Spain
| | - Deédeni Devos
- Service of Endocrinology and Nutrition, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), University Hospital Doctor Peset, Valencia, Spain
| | - Juan D Salazar
- Service of Endocrinology and Nutrition, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), University Hospital Doctor Peset, Valencia, Spain
| | - Víctor M Víctor
- INCLIVA (Biomedical Research Institute Valencia), Valencia, Spain; Service of Endocrinology and Nutrition, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), University Hospital Doctor Peset, Valencia, Spain; Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia; National Network of Biomedical Research on Hepatic and Digestive Diseases (CIBERehd).
| | - Susana Rovira-Llopis
- INCLIVA (Biomedical Research Institute Valencia), Valencia, Spain; Service of Endocrinology and Nutrition, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), University Hospital Doctor Peset, Valencia, Spain; Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia.
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3
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Gutierrez B, Aggarwal T, Erguven H, Stone MRL, Guo C, Bellomo A, Abramova E, Stevenson ER, Laskin DL, Gow AJ, Izgu EC. Direct assessment of nitrative stress in lipid environments: Applications of a designer lipid-based biosensor for peroxynitrite. iScience 2023; 26:108567. [PMID: 38144454 PMCID: PMC10746523 DOI: 10.1016/j.isci.2023.108567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/12/2023] [Accepted: 11/21/2023] [Indexed: 12/26/2023] Open
Abstract
Lipid membranes and lipid-rich organelles are targets of peroxynitrite (ONOO-), a highly reactive species generated under nitrative stress. We report a membrane-localized phospholipid (DPPC-TC-ONOO-) that allows the detection of ONOO- in diverse lipid environments: biomimetic vesicles, mammalian cell compartments, and within the lung lining. DPPC-TC-ONOO- and POPC self-assemble to membrane vesicles that fluorogenically and selectively respond to ONOO-. DPPC-TC-ONOO-, delivered through lipid nanoparticles, allowed for ONOO- detection in the endoplasmic reticulum upon cytokine-induced nitrative stress in live mammalian cells. It also responded to ONOO- within lung tissue murine models upon acute lung injury. We observed nitrative stress around bronchioles in precision cut lung slices exposed to nitrogen mustard and in pulmonary macrophages following intratracheal bleomycin challenge. Results showed that DPPC-TC-ONOO- functions specifically toward iNOS, a key enzyme modulating nitrative stress, and offers significant advantages over its hydrophilic analog in terms of localization and signal generation.
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Affiliation(s)
- Bryan Gutierrez
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, NJ 08854, USA
| | - Tushar Aggarwal
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, NJ 08854, USA
| | - Huseyin Erguven
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, NJ 08854, USA
| | - M. Rhia L. Stone
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, NJ 08854, USA
| | - Changjiang Guo
- Ernest Mario School of Pharmacy, Department of Pharmacology & Toxicology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Alyssa Bellomo
- Ernest Mario School of Pharmacy, Department of Pharmacology & Toxicology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Elena Abramova
- Ernest Mario School of Pharmacy, Department of Pharmacology & Toxicology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Emily R. Stevenson
- Ernest Mario School of Pharmacy, Department of Pharmacology & Toxicology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Debra L. Laskin
- Ernest Mario School of Pharmacy, Department of Pharmacology & Toxicology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Andrew J. Gow
- Ernest Mario School of Pharmacy, Department of Pharmacology & Toxicology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Enver Cagri Izgu
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, NJ 08854, USA
- Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ 08901, USA
- Rutgers Center for Lipid Research, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ 08901, USA
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4
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Vaziri N, Marques D, Greenway SC, Bousman CA. The cellular mechanism of antipsychotic-induced myocarditis: A systematic review. Schizophr Res 2023; 261:206-215. [PMID: 37797362 DOI: 10.1016/j.schres.2023.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 04/23/2023] [Accepted: 09/24/2023] [Indexed: 10/07/2023]
Abstract
Antipsychotic drug-induced myocarditis is a serious and potentially fatal adverse drug reaction characterized by inflammation of the heart muscle (myocardium) that typically develops within the first month after commencing an antipsychotic drug. Although the precise mechanism of this severe adverse drug reaction is unknown, multiple theories have been proposed with varying levels of support from cellular or animal studies. We conducted a systematic review, in accordance with PRISMA guidelines, of published preclinical and clinical studies investigating the cellular mechanism by which antipsychotic drugs induce myocarditis. A literature search including all studies available before December 10, 2022, yielded 15 studies that met our inclusion criteria. Antipsychotics examined in the included studies included clozapine (n = 13), ziprasidone (n = 1), amisulpride (n = 1), haloperidol (n = 1), levomepromazine (n = 1), olanzapine (n = 1), and sertindole (n = 1). The evidence suggests several overlapping mechanistic cascades involving: (1) increased levels of catecholamines, (2) increased proinflammatory cytokines, (3) increased reactive oxygen species (ROS), (4) reduced antioxidant levels and activity, and (5) mitochondrial damage. Notable limitations such as, a focus on clozapine, sample heterogeneity, and use of supratherapeutic doses will need to be addressed in future studies. Discovery of the mechanism by which antipsychotic drugs induce myocarditis will allow the development of clinically-useful biomarkers to identify those patients at increased risk prior to drug exposure. The development or repurposing of therapeutics to prevent or treat drug-induced myocarditis will also be possible and this will enable increased and safe use of antipsychotics for those patients in need.
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Affiliation(s)
- Nazanin Vaziri
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada
| | - Diogo Marques
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada
| | - Steven C Greenway
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Chad A Bousman
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Psychiatry, University of Calgary, Calgary, AB, Canada; Department of Physiology & Pharmacology, University of Calgary, Calgary, AB, Canada; Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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5
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Matyas C, Trojnar E, Zhao S, Arif M, Mukhopadhyay P, Kovacs A, Fabian A, Tokodi M, Bagyura Z, Merkely B, Kohidai L, Lajko E, Takacs A, He Y, Gao B, Paloczi J, Lohoff FW, Haskó G, Ding WX, Pacher P. PCSK9, A Promising Novel Target for Age-Related Cardiovascular Dysfunction. JACC Basic Transl Sci 2023; 8:1334-1353. [PMID: 38094682 PMCID: PMC10715889 DOI: 10.1016/j.jacbts.2023.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 12/29/2023]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of death among elderly people. Proprotein convertase subtilisin/kexin type 9 (PCSK9) is an important regulator of cholesterol metabolism. Herein, we investigated the role of PCSK9 in age-related CVD. Both in humans and rats, blood PCSK9 level correlated positively with increasing age and the development of cardiovascular dysfunction. Age-related fatty degeneration of liver tissue positively correlated with serum PCSK9 levels in the rat model, while development of age-related nonalcoholic fatty liver disease correlated with cardiovascular functional impairment. Network analysis identified PCSK9 as an important factor in age-associated lipid alterations and it correlated positively with intima-media thickness, a clinical parameter of CVD risk. PCSK9 inhibition with alirocumab effectively reduced the CVD progression in aging rats, suggesting that PCSK9 plays an important role in cardiovascular aging.
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Affiliation(s)
- Csaba Matyas
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
- Department of Medical Imaging, Medical School, University of Pécs, Pécs, Hungary
| | - Eszter Trojnar
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Suxian Zhao
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Muhammad Arif
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Partha Mukhopadhyay
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Attila Kovacs
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Alexandra Fabian
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Marton Tokodi
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Zsolt Bagyura
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Bela Merkely
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Laszlo Kohidai
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Eszter Lajko
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Angela Takacs
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Yong He
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Janos Paloczi
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Falk W. Lohoff
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - György Haskó
- Department of Anesthesiology, Columbia University, New York, New York, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Pal Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
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6
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Tran BA, Serag-Bolos ES, Fernandez J, Miranda AC. Vericiguat: The First Soluble Guanylate Cyclase Stimulator for Reduction of Cardiovascular Death and Heart Failure Hospitalization in Patients With Heart Failure Reduced Ejection Fraction. J Pharm Pract 2023; 36:905-914. [PMID: 35356844 DOI: 10.1177/08971900221087096] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Objective: This study aims to review the pharmacology, efficacy, and safety of the soluble guanylate cyclase stimulator, vericiguat, in patients with symptomatic congestive heart failure with ejection fraction less than 45% for the reduction of cardiovascular deaths. Also, to evaluate heart failure-related hospitalization in patients following a hospital discharge secondary to heart failure or those that require outpatient intravenous diuretics. Data source: MEDLINE/Pubmed and National Institutes of Health Clinical Trial Registry were searched between January 1989 to February 2021 using the following terms: vericiguat, soluble guanylate cyclase stimulator, heart failure, (was also known as) BAY 1021189. Study Selection and Data Extraction: The following study designs were included in the analysis: phase I, II, and III clinical trials; systematic reviews; and meta-analyses. Articles were included if they were published in English and evaluated vericiguat pharmacology, pharmacokinetics, efficacy, and safety. Data Synthesis: The Food and Drug Administration approved vericiguat for the reduction of cardiovascular death and hospitalization after having a related hospitalization or the need for outpatient intravenous diuretics, in those with symptomatic chronic heart failure and ejection fraction less than 45%. In the VICTORIA trial, vericiguat demonstrated a 10% reduction in risk of death from cardiovascular causes or first hospitalization for heart failure compared with placebo. Vericiguat was well tolerated overall with hypotension, syncope, and anemia noted as the most common side effects, similar to the other agent in its class. Conclusion: Vericiguat may be appropriate as add-on therapy for patients already on guideline-directed medical therapy with recent decompensated HFrEF to reduce hospitalization.
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Affiliation(s)
- Bao-Anh Tran
- Department of Pharmacotherapeutics & Clinical Research, Taneja College of Pharmacy, University of South Florida, Tampa, FL, USA
| | - Erini S Serag-Bolos
- Department of Pharmacotherapeutics & Clinical Research, Taneja College of Pharmacy, University of South Florida, Tampa, FL, USA
| | - Joel Fernandez
- Cardiovascular Sciences Division, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Aimon C Miranda
- Department of Pharmacotherapeutics & Clinical Research, Taneja College of Pharmacy, University of South Florida, Tampa, FL, USA
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7
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Jankó L, Tóth E, Laczik M, Rauch B, Janka E, Bálint BL, Bai P. PARP2 poly(ADP-ribosyl)ates nuclear factor erythroid 2-related factor 2 (NRF2) affecting NRF2 subcellular localization. Sci Rep 2023; 13:7869. [PMID: 37188809 DOI: 10.1038/s41598-023-35076-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023] Open
Abstract
PARP2 is a member of the PARP enzyme family. Although, PARP2 plays role in DNA repair, it has regulatory roles in mitochondrial and lipid metabolism, it has pivotal role in bringing about the adverse effects of pharmacological PARP inhibitors. Previously, we showed that the ablation of PARP2 induces oxidative stress and, consequently, mitochondrial fragmentation. In attempt to identify the source of the reactive species we assessed the possible role of a central regulator of cellular antioxidant defense, nuclear factor erythroid 2-related factor 2 (NRF2). The silencing of PARP2 did not alter either the mRNA or the protein expression of NRF2, but changed its subcellular localization, decreasing the proportion of nuclear, active fraction of NRF2. Pharmacological inhibition of PARP2 partially restored the normal localization pattern of NRF2 and in line with that, we showed that NRF2 is PARylated that is absent in the cells in which PARP2 was silenced. Apparently, the PARylation of NRF2 by PARP2 has pivotal role in regulating the subcellular (nuclear) localization of NRF2. The silencing of PARP2 rearranged the expression of genes encoding proteins with antioxidant function, among these a subset of NRF2-dependent genes.
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Affiliation(s)
- Laura Jankó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Miklós Laczik
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Boglárka Rauch
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary
| | - Eszter Janka
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Bálint L Bálint
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- Department of Bioinformatics, Semmelweis University, Tűzoltó Utca 7-9., Budapest, 1094, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Egyetem Tér 1., 4032, Debrecen, Hungary.
- Center of Excellence, The Hungarian Academy of Sciences, Budapest, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary.
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary.
- MTA-DE Cell Biology and Signaling Research Group ELKH, Debrecen, Hungary.
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8
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Gergely TG, Kucsera D, Tóth VE, Kovács T, Sayour NV, Drobni ZD, Ruppert M, Petrovich B, Ágg B, Onódi Z, Fekete N, Pállinger É, Buzás EI, Yousif LI, Meijers WC, Radovits T, Merkely B, Ferdinandy P, Varga ZV. Characterization of immune checkpoint inhibitor-induced cardiotoxicity reveals interleukin-17A as a driver of cardiac dysfunction after anti-PD-1 treatment. Br J Pharmacol 2023; 180:740-761. [PMID: 36356191 DOI: 10.1111/bph.15984] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 10/06/2022] [Accepted: 10/29/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND AND PURPOSE Immune checkpoint inhibitors (ICI), such as anti-PD-1 monoclonal antibodies, have revolutionized cancer therapy by enhancing the cytotoxic effects of T-cells against tumours. However, enhanced T-cell activity also may cause myocarditis and cardiotoxicity. Our understanding of the mechanisms of ICI-induced cardiotoxicity is limited. Here, we aimed to investigate the effect of PD-1 inhibition on cardiac function and explore the molecular mechanisms of ICI-induced cardiotoxicity. EXPERIMENTAL APPROACH C57BL6/J and BALB/c mice were treated with isotype control or anti-PD-1 antibody. Echocardiography was used to assess cardiac function. Cardiac transcriptomic changes were investigated by bulk RNA sequencing. Inflammatory changes were assessed by qRT-PCR and immunohistochemistry in heart, thymus, and spleen of the animals. In follow-up experiments, anti-CD4 and anti-IL-17A antibodies were used along with PD-1 blockade in C57BL/6J mice. KEY RESULTS Anti-PD-1 treatment led to cardiac dysfunction and left ventricular dilation in C57BL/6J mice, with increased nitrosative stress. Only mild inflammation was observed in the heart. However, PD-1 inhibition resulted in enhanced thymic inflammatory signalling, where Il17a increased most prominently. In BALB/c mice, cardiac dysfunction was not evident, and thymic inflammatory activation was more balanced. Inhibition of IL-17A prevented anti-PD-1-induced cardiac dysfunction in C57BL6/J mice. Comparing myocardial transcriptomic changes in C57BL/6J and BALB/c mice, differentially regulated genes (Dmd, Ass1, Chrm2, Nfkbia, Stat3, Gsk3b, Cxcl9, Fxyd2, and Ldb3) were revealed, related to cardiac structure, signalling, and inflammation. CONCLUSIONS PD-1 blockade induces cardiac dysfunction in mice with increased IL-17 signalling in the thymus. Pharmacological inhibition of IL-17A treatment prevents ICI-induced cardiac dysfunction.
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Affiliation(s)
- Tamás G Gergely
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,HCEMM-SE Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary.,MTA-SE Momentum Cardio-Oncology and Cardioimmunology Research Group, Semmelweis University, Budapest, Hungary
| | - Dániel Kucsera
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,HCEMM-SE Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary.,MTA-SE Momentum Cardio-Oncology and Cardioimmunology Research Group, Semmelweis University, Budapest, Hungary
| | - Viktória E Tóth
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,HCEMM-SE Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary.,MTA-SE Momentum Cardio-Oncology and Cardioimmunology Research Group, Semmelweis University, Budapest, Hungary
| | - Tamás Kovács
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,HCEMM-SE Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary.,MTA-SE Momentum Cardio-Oncology and Cardioimmunology Research Group, Semmelweis University, Budapest, Hungary
| | - Nabil V Sayour
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,HCEMM-SE Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary.,MTA-SE Momentum Cardio-Oncology and Cardioimmunology Research Group, Semmelweis University, Budapest, Hungary
| | - Zsófia D Drobni
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Mihály Ruppert
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Balázs Petrovich
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Bence Ágg
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary.,MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Zsófia Onódi
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,HCEMM-SE Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary.,MTA-SE Momentum Cardio-Oncology and Cardioimmunology Research Group, Semmelweis University, Budapest, Hungary
| | - Nóra Fekete
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Éva Pállinger
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Edit I Buzás
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Laura I Yousif
- Department of Cardiology, Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Division of Experimental Cardiology, Department of Cardiology, Thorax Center, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Wouter C Meijers
- Department of Cardiology, Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Division of Experimental Cardiology, Department of Cardiology, Thorax Center, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Tamás Radovits
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Béla Merkely
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary.,MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Zoltán V Varga
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,HCEMM-SE Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary.,MTA-SE Momentum Cardio-Oncology and Cardioimmunology Research Group, Semmelweis University, Budapest, Hungary
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9
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Sharma S, Iqubal A, Khan V, Sharma K, Najmi AK, Haque SE. Icariin ameliorates oxidative stress-induced inflammation, apoptosis, and heart failure in isoproterenol-challenged Wistar rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2023; 26:517-525. [PMID: 37051097 PMCID: PMC10083836 DOI: 10.22038/ijbms.2023.66481.14589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 02/18/2023] [Indexed: 04/14/2023]
Abstract
Objectives Cardiovascular diseases are widespread across the globe, and heart failure (HF) accounts for the majority of heart-associated deaths. Target-based drug therapy is much needed for the management of heart failure. We have designed this study to evaluate icariin for its cardioprotective activity in the isoproterenol (ISO) induced postinfarction model. We have randomly distributed Wistar rats into seven groups, i.e., vehicle control; isoproterenol-treated; icariin per se; sildenafil per se; ISO + icariin 5; ISO + icariin 10; and ISO + sildenafil groups. ISO (85 mg/kg, subcutaneous) was administered at 24 hr for two consecutive days to produce cardiac injury, followed by icariin administration at 5 mg/kg and 10 mg/kg orally for 56 days. Materials and Methods Rats were subjected to hemodynamic measurements biweekly. After 24 hr of the completion of dosing, animals were sacrificed, and markers for oxidative stress, fibrosis, inflammation, and cell death were measured. Transmission electron microscopy (TEM), histopathology, and MT staining of cardiac tissue were also done to assess the pathological and fibrotic architectural damage. Results A significant decline in hemodynamics and an anti-oxidant collapse were found in ISO-intoxicated rats. Alterations in the levels of cyclic guanosine monophosphate (cGMP), interleukin-10 (IL-10), Tumor necrosis factor (TNF-α), and brain natriuretic peptide (BNP) were also observed in serum. Up-regulation of caspase-3, nuclear factor (NF-ĸB), and decline in expression of nuclear factor (NrF-2) contribute to cardiac damage. The treatment with icariin and sildenafil considerably reversed the toxic changes toward normal. Conclusion Increased cGMP and Nrf2 expression and suppressed NF-ĸB-caspase-3 signaling play a pivotal role in icariin-mediated cardioprotection.
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Affiliation(s)
- Sumit Sharma
- Department of Pharmacology, School of Pharmacy Education and Research, Jamia Hamdard, New Delhi – 110062, India
| | - Ashif Iqubal
- Department of Pharmacology, School of Pharmacy Education and Research, Jamia Hamdard, New Delhi – 110062, India
| | - Vasim Khan
- Department of Pharmacology, School of Pharmacy Education and Research, Jamia Hamdard, New Delhi – 110062, India
| | - Kalicharan Sharma
- Department of Pharmaceutical Chemistry, Delhi Pharmaceutical Sciences and Research University, New Delhi - 110017, India
| | - Abul Kalam Najmi
- Department of Pharmacology, School of Pharmacy Education and Research, Jamia Hamdard, New Delhi – 110062, India
| | - Syed Ehtaishamul Haque
- Department of Pharmacology, School of Pharmacy Education and Research, Jamia Hamdard, New Delhi – 110062, India
- Corresponding author: Syed Ehtaishamul Haque. Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi – 110062, India. Tel: +91-9999464404; Fax: +91-11-26059663;
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10
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Role of thyroid hormones-induced oxidative stress on cardiovascular physiology. Biochim Biophys Acta Gen Subj 2022; 1866:130239. [PMID: 36064072 DOI: 10.1016/j.bbagen.2022.130239] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/21/2021] [Accepted: 08/09/2022] [Indexed: 11/21/2022]
Abstract
Thyroid hormones (THs) play an essential role in the maintenance of cardiovascular homeostasis and are involved in the modulation of cardiac contractility, heart rate, diastolic function, systemic vascular resistance, and vasodilation. THs have actions on cardiovascular physiology through the activation or repression of target genes or the activation of intracellular signals through non-genomic mechanisms. Hyperthyroidism alters certain intracellular pathways involved in the preservation of the structure and functionality of the heart, causing relevant cardiovascular disorders. Reactive oxygen species (ROS) play an important role in the cardiovascular system, but the exacerbated increase in ROS caused by chronic hyperthyroidism together with regulation on the antioxidant system have been associated with the development of cardiovascular dysfunction. In this review, we analyze the role of THs-induced oxidative stress in the cellular and molecular changes that lead to cardiac dysfunction, as well as the effectiveness of antioxidant treatments in attenuating cardiac abnormalities developed during hyperthyroidism.
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11
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Wang F, Yuan Q, Cao S, Li R, Zhang J, Yang K, Xu F, Chen Y. Inhibition of Nitrosative Stress Attenuates Myocardial Injury and Improves Outcomes after Cardiac Arrest and Resuscitation. Shock 2022; 57:299-307. [PMID: 35703306 DOI: 10.1097/shk.0000000000001939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Nitrosative stress is widely involved in cell injury via inducing the nitration modification of a variety of proteins. This study aimed to investigate whether inhibition of nitrosative stress attenuated myocardial injury and improved outcomes in a rat model of cardiac arrest (CA) and cardiopulmonary resuscitation (CPR). METHODS Adult male Wistar rats were subjected to asphyxia-induced cardiac arrest and subsequently resuscitation. One minute after return of spontaneous circulation (ROSC), rats were randomized and administered the nitrosative stress inhibitor, FeTMPyP (1 or 3 mg/kg), or normal saline as a placebo. 3-Nitrotyrosine (3-NT), mean arterial pressure (MAP), heart rate (HR), mortality, electrocardiogram (ECG), left ventricular ejection fraction (EF) and fractional shortening (FS), and levels of myocardial apoptosis were evaluated. The concentrations of lactate, creatine kinase MB isoenzyme (CK-MB), and angiotensin II (Ang II), were measured in blood samples. RESULTS 3-NT level was significantly increased in the heart after ROSC. Administration of FeTMPyP (1 or 3 mg/kg) attenuated the increase of 3-NT in the myocardium. Inhibition of nitrosative stress improved survival and attenuated CA/CPR-induced reperfusion injury by maintaining the stability of MAP and HR, and reducing the accumulation of lactic acid. Post-cardiac arrest rats had higher serum CK-MB and Ang II than healthy rats, while EF and FS were lower in healthy rats. Inhibition of nitrosative stress not only alleviated ischemic heart injury but also reduced the occurrence of CA/CPR-induced of arrhythmias. Moreover, nitrosative stress mediated the upregulation of Cleaved caspase-3 and downregulation Bcl-2, which was abolished by FeTMPyP. CONCLUSIONS Inhibition of nitrosative stress is a novel molecular target to alleviate myocardial injury and improve outcomes in a rat model of CA/CPR.
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Affiliation(s)
- Fulin Wang
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Qiuhuan Yuan
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Shengchuan Cao
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Ruochuan Li
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Jian Zhang
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Kehui Yang
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Feng Xu
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Yuguo Chen
- Department of Emergency Medicine, Qilu Hospital, Shandong University, Jinan, China
- Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Shandong University, Jinan, China
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12
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Antioxidant and Anticholinesterase Properties of the Aqueous Extract of Balanites aegyptiaca L. Delile Fruit Pulp on Monosodium Glutamate-Induced Excitotoxicity in Swiss Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:7576132. [PMID: 35449814 PMCID: PMC9017515 DOI: 10.1155/2022/7576132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 01/26/2022] [Accepted: 02/18/2022] [Indexed: 11/18/2022]
Abstract
Balanites aegyptiaca L. Delile (B. aegyptiaca) is used in traditional medicine for the treatment of memory impairment. This work aims to evaluate the antioxidant and anticholinesterase potential of BA fruit pulp extract on excitotoxicity induced by monosodium glutamate (MSG). MSG was administered 30 minutes after treatment with B. aegyptiaca aqueous fruit pulp extract (50, 125, 250, and 500 mg/kg) and vitamin C (100 mg/kg) for 30 days. The negative control group received only MSG, while the control group was given distilled water daily. Behavioral tests parameters (using the novel object recognition, Y-maze, and Barnes maze tests), oxidative stress biomarkers (malondialdehyde, superoxide dismutase, and catalase), nitric oxide, and acetylcholinesterase activity and hippocampal architecture were evaluated. Results obtained revealed that different doses of B. aegyptiaca significantly reversed the deleterious effect of MSG on memory. This was displayed by a significant (
) increment in the percentage of spontaneous alternation in the Y-maze test and a significant (
) increase in discrimination index in novel object recognition observed with 500 mg/kg extract dose. Moreover, the extract (250 and 500 mg/kg doses) significantly (
) increased direct search strategy and significantly decreased (
) the time taken to find the target hole in the Barnes maze. A modulation of hyperactivity was observed after administration of all extract doses compared to the negative control group in the open arena. Furthermore, the highest dose of the extract caused a significant (
) improvement in antioxidant enzymes activity, associated with a significant (
) decrement in nitric oxide and malondialdehyde concentrations and a significant (
) decrease in acetylcholinesterase activity. Treatment with the extract also restored normal hippocampal cell architecture. B. aegyptiaca fruit pulp extract could thus confer neuroprotection through its antioxidant and anticholinesterase potential.
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Dhalla NS, Elimban V, Bartekova M, Adameova A. Involvement of Oxidative Stress in the Development of Subcellular Defects and Heart Disease. Biomedicines 2022; 10:biomedicines10020393. [PMID: 35203602 PMCID: PMC8962363 DOI: 10.3390/biomedicines10020393] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 02/01/2023] Open
Abstract
It is now well known that oxidative stress promotes lipid peroxidation, protein oxidation, activation of proteases, fragmentation of DNA and alteration in gene expression for producing myocardial cell damage, whereas its actions for the induction of fibrosis, necrosis and apoptosis are considered to result in the loss of cardiomyocytes in different types of heart disease. The present article is focused on the discussion concerning the generation and implications of oxidative stress from various sources such as defective mitochondrial electron transport and enzymatic reactions mainly due to the activation of NADPH oxidase, nitric oxide synthase and monoamine oxidase in diseased myocardium. Oxidative stress has been reported to promote excessive entry of Ca2+ due to increased permeability of the sarcolemmal membrane as well as depressions of Na+-K+ ATPase and Na+-Ca2+ exchange systems, which are considered to increase the intracellular of Ca2+. In addition, marked changes in the ryanodine receptors and Ca2+-pump ATPase have been shown to cause Ca2+-release and depress Ca2+ accumulation in the sarcoplasmic reticulum as a consequence of oxidative stress. Such alterations in sarcolemma and sarcoplasmic reticulum are considered to cause Ca2+-handling abnormalities, which are associated with mitochondrial Ca2+-overload and loss of myofibrillar Ca2+-sensitivity due to oxidative stress. Information regarding the direct effects of different oxyradicals and oxidants on subcellular organelles has also been outlined to show the mechanisms by which oxidative stress may induce Ca2+-handling abnormalities. These observations support the view that oxidative stress plays an important role in the genesis of subcellular defects and cardiac dysfunction in heart disease.
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Affiliation(s)
- Naranjan S. Dhalla
- St. Boniface Hospital Albrechtsen Research Centre, Institute of Cardiovascular Sciences, Department of Physiology and Pathophysiology, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R2H 2A6, Canada;
- Correspondence: ; Tel.: +1-204-235-3417; Fax: +1-204-237-0347
| | - Vijayan Elimban
- St. Boniface Hospital Albrechtsen Research Centre, Institute of Cardiovascular Sciences, Department of Physiology and Pathophysiology, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R2H 2A6, Canada;
| | - Monika Bartekova
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Dubravska cesta 9, 84104 Bratislava, Slovakia; (M.B.); (A.A.)
| | - Adriana Adameova
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Dubravska cesta 9, 84104 Bratislava, Slovakia; (M.B.); (A.A.)
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University Bratislava, Odbojarov 10, 83232 Bratislava, Slovakia
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14
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Choromańska B, Myśliwiec P, Dadan J, Maleckas A, Zalewska A, Maciejczyk M. Effects of age and gender on the redox homeostasis of morbidly obese people. Free Radic Biol Med 2021; 175:108-120. [PMID: 34390781 DOI: 10.1016/j.freeradbiomed.2021.08.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/04/2021] [Accepted: 08/09/2021] [Indexed: 01/28/2023]
Abstract
Obesity is a chronic disease of complex etiology. Recent evidence suggests that obesity is caused by inflammation of adipose tissue leading to metabolic disorders, cardiovascular disease and cancer. This is the first study to evaluated the effects of age and gender on redox homeostasis, glutathione metabolism, and oxidative damage to plasma/serum lipids and proteins in morbidly obese patients. The study included 120 (60 men and 60 women) morbidly obese patients with class 3 obesity (BMI > 40 kg/m2), classified into three groups depending on age: 20-39 years (n = 20), 40-59 years (n = 20) and 60 years or older (n = 20). The number of patients was calculated a priori based on our previous experiment. We observed a reduction in serum activity of antioxidant enzymes (↓SOD) and plasma concentration of non-enzymatic antioxidants (↓GSH) in obese patients compared to the lean controls, which further decreased with age. Redox status (↑TAC, ↑TOS and ↓OSI) in morbidly obese men and women was shifted towards oxidation. Moreover, lipid (↑MDA and ↑LOOH) and protein (↑AOPP, ↑AGE and ↑Amadori products) damage products of oxidation and nitrosylation/nitration (↑total NO, ↑S-nitrosothiols, ↑peroxynitrite and ↑nitrotyrosine) were elevated in both genders of morbidly obese patients and were higher in the elderly. Interestingly, the concentrations of oxidative and nitrosative stress markers were generally higher in obese men compared to obese women at the same age. Summarizing, we showed that the total antioxidant/oxidant potential of obese patients is significantly increased and shifted towards oxidation. Obese patients have increased lipid and protein oxidation, glycation and nitration as compared to the lean controls. Disturbances in redox homeostasis increase with age in obese patients. Oxidative and nitrosative stress are more intense in men than in women at the same age.
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Affiliation(s)
- Barbara Choromańska
- 1st Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276, Bialystok, Poland.
| | - Piotr Myśliwiec
- 1st Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276, Bialystok, Poland.
| | - Jacek Dadan
- 1st Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276, Bialystok, Poland.
| | - Almantas Maleckas
- Department of Surgery, Lithuanian University of Health Sciences, Kaunas, Lithuania; Department of Gastrosurgical Research and Education, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Anna Zalewska
- Experimental Dentistry Laboratory, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274, Bialystok, Poland.
| | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, 2c Mickiewicza Street, 15-233, Bialystok, Poland.
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15
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Atypical antipsychotics and oxidative cardiotoxicity: review of literature and future perspectives to prevent sudden cardiac death. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2021; 18:663-685. [PMID: 34527032 PMCID: PMC8390928 DOI: 10.11909/j.issn.1671-5411.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidative stress is considered the principal mediator of myocardial injury under pathological conditions. It is well known that reactive oxygen (ROS) or nitrogen species (RNS) are involved in myocardial injury and repair at the same time and that cellular damage is generally due to an unbalance between generation and elimination of the free radicals due to an inadequate mechanism of antioxidant defense or to an increase in ROS and RNS. Major adverse cardiovascular events are often associated with drugs with associated findings such as fibrosis or inflammation of the myocardium. Despite efforts in the preclinical phase of the development of drugs, cardiotoxicity still remains a great concern. Cardiac toxicity due to second-generation antipsychotics (clozapine, olanzapine, quetiapine) has been observed in preclinical studies and described in patients affected with mental disorders. A role of oxidative stress has been hypothesized but more evidence is needed to confirm a causal relationship. A better knowledge of cardiotoxicity mechanisms should address in the future to establish the right dose and length of treatment without impacting the physical health of the patients.
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16
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Buelna-Chontal M, García-Niño WR, Silva-Palacios A, Enríquez-Cortina C, Zazueta C. Implications of Oxidative and Nitrosative Post-Translational Modifications in Therapeutic Strategies against Reperfusion Damage. Antioxidants (Basel) 2021; 10:749. [PMID: 34066806 PMCID: PMC8151040 DOI: 10.3390/antiox10050749] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 12/17/2022] Open
Abstract
Post-translational modifications based on redox reactions "switch on-off" the biological activity of different downstream targets, modifying a myriad of processes and providing an efficient mechanism for signaling regulation in physiological and pathological conditions. Such modifications depend on the generation of redox components, such as reactive oxygen species and nitric oxide. Therefore, as the oxidative or nitrosative milieu prevailing in the reperfused heart is determinant for protective signaling, in this review we defined the impact of redox-based post-translational modifications resulting from either oxidative/nitrosative signaling or oxidative/nitrosative stress that occurs during reperfusion damage. The role that cardioprotective conditioning strategies have had to establish that such changes occur at different subcellular levels, particularly in mitochondria, is also presented. Another section is devoted to the possible mechanism of signal delivering of modified proteins. Finally, we discuss the possible efficacy of redox-based therapeutic strategies against reperfusion damage.
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Affiliation(s)
| | | | | | | | - Cecilia Zazueta
- Department of Cardiovascular Biomedicine, National Institute of Cardiology Ignacio Chávez, Mexico City 14080, Mexico; (M.B.-C.); (W.R.G.-N.); (A.S.-P.); (C.E.-C.)
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17
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Vujic A, Koo ANM, Prag HA, Krieg T. Mitochondrial redox and TCA cycle metabolite signaling in the heart. Free Radic Biol Med 2021; 166:287-296. [PMID: 33675958 DOI: 10.1016/j.freeradbiomed.2021.02.041] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/18/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
Mitochondria are essential signaling organelles that regulate a broad range of cellular processes and thereby heart function. Multiple mechanisms participate in the communication between mitochondria and the nucleus that maintain cardiomyocyte homeostasis, including mitochondrial reactive oxygen species (ROS) and metabolic shifts in TCA cycle metabolite availability. An increased rate of ROS generation can cause irreversible damage to the cell and proposed to be a leading cause of many pathologies, including accelerated aging and heart disease. Myocardial impairments are also characterised by specific coordinated metabolic changes and dysregulated inflammatory responses. Hence, the mitochondrial respiratory chain is an important mediator between health and disease in the heart. This review will first outline the sources of ROS in the heart, mitochondrial metabolite dynamics, and provide an overview of their implications for heart disease. In addition, we will concentrate our discussion around current cardioprotective strategies relevant to mitochondrial ROS. Thorough understanding of mitochondrial signaling and the complex interplay with vital signaling pathways in the heart might allow us to develop novel therapeutic approaches to cardiovascular disease.
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Affiliation(s)
- Ana Vujic
- Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Amy N M Koo
- Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Hiran A Prag
- Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK; MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge Biomedical Campus, CB2 0XY, UK
| | - Thomas Krieg
- Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK.
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18
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van Nispen J, Voigt M, Song E, Armstrong A, Fedorova M, Murali V, Krebs J, Samaddar A, Manithody C, Jain A. Parenteral Nutrition and Cardiotoxicity. Cardiovasc Toxicol 2021; 21:265-271. [PMID: 33554318 DOI: 10.1007/s12012-021-09638-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/27/2021] [Indexed: 12/30/2022]
Abstract
Parenteral nutrition (PN) is a life-saving nutritional therapy for those situations when patients are unable to receive enteral nutrition. However, despite a multitude of benefits offered by PN, it is associated with a variety of side effects, most notably parenteral nutrition-associated liver disease (PNALD). Adverse effects of PN on other organ systems, such as brain and cardiovascular system, have been poorly studied. There have been several case reports, studies, and a recent animal study highlighting cardiotoxic effects of PN; however, much remains unclear about the underlying mechanisms causing cardiac damage. In this review, we propose a series of potential mechanisms behind PN-associated heart injury, and we provide an overview of therapeutic strategies and recent scientific advances.
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Affiliation(s)
- Johan van Nispen
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA.
- Department of Surgery, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA.
| | - Marcus Voigt
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
- Department of Surgery, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Eric Song
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Austin Armstrong
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Margarita Fedorova
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Vidul Murali
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Joseph Krebs
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Ashish Samaddar
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | | | - Ajay Jain
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
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19
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Klimiuk A, Zalewska A, Knapp M, Sawicki R, Ładny JR, Maciejczyk M. Salivary Gland Dysfunction in Patients with Chronic Heart Failure Is Aggravated by Nitrosative Stress, as Well as Oxidation and Glycation of Proteins. Biomolecules 2021; 11:119. [PMID: 33477706 PMCID: PMC7831926 DOI: 10.3390/biom11010119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/09/2021] [Accepted: 01/16/2021] [Indexed: 12/17/2022] Open
Abstract
Chronic heart failure (HF) is an important clinical, social, and economic problem. A key role in HF progression is played by oxidative stress. Free oxygen radicals, formed under the conditions of hypoxia and reperfusion, participate in myocardial stunning and other forms of post-reperfusion damage. HF patients also suffer from disorders connected with saliva secretion. However, still little is known about the mechanisms that impair the secretory function of salivary glands in these patients. In the presented study, we were the first to compare the antioxidant barrier, protein glycoxidation, and nitrosative/nitrative stress in non-stimulated (non-stimulated whole saliva (NWS)) and stimulated (SWS) saliva of HF patients. The study included 50 HF patients with normal saliva (NS) secretion (n = 27) and hyposalivation (HS) (n = 23), as well as an age- and gender-matched control group (n = 50). We demonstrated that, in NWS of HF patients with HS, the concentration of low-molecular-weight non-enzymatic antioxidants decreased (↓total polyphenols, ↓ascorbic acid, ↓reduced glutathione, ↓albumin) compared to HF patients with normal saliva (NS) secretion, as well as the control group (except albumin). We also observed increased content of protein glycoxidation products (↑dityrosine, ↑kynurenine, ↑glycophore) in NWS and SWS of HF patients with HS compared to healthy controls. Interestingly, the content of dityrosine, N-formylkynurenine, and glycophore in NWS was also significantly higher in HF patients with HS compared to those with NS secretion. The concentration of NO was considerably lower, while the levels of peroxynitrite and nitrotyrosine were significantly higher in NWS and SWS of HF subjects with HS compared to the controls. Salivary gland dysfunction occurs in patients with chronic HF with the submandibular salivary glands being the least efficient. Oxidative/nitrosative stress may be one of the mechanisms responsible for the impairment of salivary gland secretory function in HF patients.
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Affiliation(s)
- Anna Klimiuk
- Experimental Dentistry Laboratory, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland; (A.K.); (A.Z.)
| | - Anna Zalewska
- Experimental Dentistry Laboratory, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland; (A.K.); (A.Z.)
| | - Małgorzata Knapp
- Department of Cardiology, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland; (M.K.); (R.S.)
| | - Robert Sawicki
- Department of Cardiology, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland; (M.K.); (R.S.)
| | - Jerzy Robert Ładny
- 1st Department of General Surgery and Endocrinology, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland;
| | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, 2c Mickiewicza Street, 15-233 Bialystok, Poland
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Silva H, Francisco R, Saraiva A, Francisco S, Carrascosa C, Raposo A. The Cardiovascular Therapeutic Potential of Propolis-A Comprehensive Review. BIOLOGY 2021; 10:biology10010027. [PMID: 33406745 PMCID: PMC7823408 DOI: 10.3390/biology10010027] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/22/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023]
Abstract
Simple Summary Propolis, also described as bee glue, is a natural component made up of a resinous mixture of honeybee compounds from multiple botanical sources. The literature has demonstrated a variety of medicinal properties attributed to propolis due to its chemical complexity. However, the positive effects of propolis on cardiovascular health have gained little coverage. Therefore, we aimed to provide an accurate and up-to-date review of the main cardiovascular health benefits of propolis. In particular, we intend to establish the key varieties of propolis and pharmacological compounds with the therapeutic effects that are most encouraging, as well as the physiological processes by which those advantages are accomplished. The Brazilian green and red varieties reveal the greatest number of beneficial activities among the varieties of propolis studied. While much of the cardiovascular beneficial effects appear to derive from the cumulative actions of several compounds working via multiple signaling mechanisms, some individual compounds that may enhance the existing therapeutic arsenal have also shown significant results. It is also worth exploring the prospect of using propolis as food supplements. Abstract Owing to its chemical richness, propolis has a myriad of therapeutic properties. To the authors’ knowledge, this is the first comprehensive review paper on propolis to focus exclusively on its major effects for cardiovascular health. The propolis compound varieties with the most promising therapeutic benefits and their respective physiological mechanisms will be discussed. Propolis displays an anti-atherosclerotic activity, attained through modulation of the plasma lipid profile and through stabilization of the fatty plaque by inhibiting macrophage apoptosis, vascular smooth muscle proliferation and metalloproteinase activity. The antihypertensive effects of propolis probably arise through the combination of several mechanisms, including the suppression of catecholamine synthesis, stimulation of endothelium-dependent vasorelaxation and vascular anti-inflammatory activity. The anti-hemostatic activity of propolis is attributed to the inhibition of platelet plug formation and antifibrinolytic activity. By inhibiting the secretion of proangiogenic factors, propolis suppresses endothelial cell migration and tubulogenesis, exerting antiangiogenic activity. The antioxidant and anti-inflammatory activities are responsible for protection against vascular endothelial and cardiomyocyte dysfunction, mostly by the prevention of oxidative stress. Among the reviewed propolis varieties, the Brazilian green and red varieties show the largest number of beneficial activities. Further research, especially preclinical, should be conducted to assess the cardiovascular benefits of the given varieties with different compositions.
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Affiliation(s)
- Henrique Silva
- Informetrics Research Group, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
- Correspondence: (H.S.); (A.R.)
| | - Rafaela Francisco
- Pharmacological Sciences Department, Faculty of Pharmacy, Universidade de Lisboa, Av Prof Gama Pinto, 1649-003 Lisboa, Portugal;
| | - Ariana Saraiva
- Department of Animal Pathology and Production, Bromatology and Food Technology, Faculty of Veterinary, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain; (A.S.); (C.C.)
| | - Simone Francisco
- Faculty of Medicine, Nutrition Lab—Universidade de Lisboa, 1649-028 Lisboa, Portugal;
| | - Conrado Carrascosa
- Department of Animal Pathology and Production, Bromatology and Food Technology, Faculty of Veterinary, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain; (A.S.); (C.C.)
| | - António Raposo
- CBIOS (Research Center for Biosciences and Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
- Correspondence: (H.S.); (A.R.)
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21
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Rajani SF, Faghihi M, Imani A. Post-infarct morphine treatment reduces apoptosis and myofibroblast density in a rat model of cardiac ischemia-reperfusion. Eur J Pharmacol 2020; 887:173590. [PMID: 32976827 DOI: 10.1016/j.ejphar.2020.173590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 09/05/2020] [Accepted: 09/18/2020] [Indexed: 11/30/2022]
Abstract
Following myocardial ischemia, the cardiac tissue undergoes both, physiological and pathological changes to compensate the initial loss of function. Long-term continuous adjustments often take a drastic picture indicated by deteriorated ventricular function. Morphine is commonly used for rescuing patients suffering a heart attack. Recent results from our laboratory showed the anti-remodeling potential of morphine. Here, we explored the effect of morphine treatment on gelatinolytic activity, apoptosis and myofibroblast density. The male Sprague - Dawley rats underwent ischemia via ligation of left anterior descending coronary artery and received morphine (3 mg/kg; i.p.) for five consecutive days. Seven days post-MI, morphine led to significant reduction in MMP - 2 activity, apoptotic cell death and fibroblast density. Morphine also reduced MI-induced rise in serum pro-oxidant antioxidant balance and nitrite levels on day 28th following the surgery. These results provide mechanistic insight for morphine - induced anti-remodeling effects.
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Affiliation(s)
- Sulail Fatima Rajani
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Physiology, Jinnah Medical & Dental College, Sohail University, Karachi, Pakistan.
| | - Mahdieh Faghihi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Alireza Imani
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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22
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The Impact of Hypertension and Metabolic Syndrome on Nitrosative Stress and Glutathione Metabolism in Patients with Morbid Obesity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1057570. [PMID: 32963689 PMCID: PMC7501544 DOI: 10.1155/2020/1057570] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/08/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023]
Abstract
In this pathbreaking study, we evaluated nitrosative stress in morbidly obese patients with and without metabolic syndrome. 62 women with class 3 obesity (BMI > 40 kg/m2) were divided into three subgroups: obese patients (OB), obese patients with hypertension (OB+HYP), and obese patients with metabolic syndrome (OB+MS). In comparison to the lean patients, OB had increased levels of serum myeloperoxidase (MPO), plasma nitric oxide (NO), S-nitrosothiols, and peroxynitrite (ONOO−), as well as nitrotyrosine, while oxidized glutathione (GSSG) rose only in OB+HYP group. Interestingly, ONOO− was significantly higher in OB+HYP and OB+MS as compared to OB group, while MPO only in OB+MS group. OB+MS had greater nitrotyrosine and S-nitrosothiol values than OB+HYP. Moreover, peroxynitrite could differentiate OB from OB+HYP and OB+MS (AUC 0.9292; p < 0.0001; 87.5% sensitivity, 90% specificity) as well as between OB and OB+MS group (AUC 0.9125; p < 0.0001; 81.25% sensitivity, 83.33%). In conclusion, we showed that MPO activity, NO formation, and nitrosative damage to proteins parallel the progression of metabolic disturbances of obesity. Evaluation of ONOO− concentrations may help predict the development of hypertension and metabolic syndrome in patients with morbid obesity; however, longer-term studies are required for larger numbers of patients.
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23
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Sharma S, Khan V, Dhyani N, Najmi AK, Haque SE. Icariin attenuates isoproterenol-induced cardiac toxicity in Wistar rats via modulating cGMP level and NF-κB signaling cascade. Hum Exp Toxicol 2019; 39:117-126. [PMID: 31797691 DOI: 10.1177/0960327119890826] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Icariin, a major component of Epimedium species, was evaluated using isoproterenol (ISO)-induced cardiotoxicity in Wistar rats. Rats were treated with icariin at the doses of 1, 5, and 10 mg kg-1 orally for 15 days. Afterward, rats were administered with ISO (85 mg kg-1, subcutaneous) on 14th and 15th day to produce cardiac injury. Sildenafil (0.7 mg kg-1, intraperitoneal) was used as a positive reference to compare the effects of icariin. ISO-treated rats showed significant changes in hemodynamic parameters. Elevated levels of cardiac troponin T, nitric oxide, and tumor necrosis factor-alpha in serum, positive expression of nuclear factor-kappa B (NF-κB) and inducible nitric oxide synthase in cardiac tissue, and a decrease in serum level of interleukin-10, manifested inflammation and associated cardiac injury. However, pretreatment with icariin and sildenafil significantly prevented the hemodynamic fall and showed improved contractile and lusitropic states. Furthermore, pretreatment groups also showed a reversal of other toxicity markers to normal. Additionally, pretreatment with icariin and sildenafil significantly increased the myocardial cyclic guanosine monophosphate (cGMP) levels. Our results thus indicated the potential role of icariin in the restoration of the ISO-induced cardiac toxicity and restored membrane integrity through modulation of cGMP and NF-κB signaling.
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Affiliation(s)
- S Sharma
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - V Khan
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - N Dhyani
- School of Sciences, Disciplines of Life Sciences, IGNOU, New Delhi, India
| | - A K Najmi
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - S E Haque
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
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24
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González Arbeláez LF, Ciocci Pardo A, Fantinelli JC, Rojano B, Schinella GR, Mosca SM. Isoespintanol, a monoterpene isolated from oxandra cf xylopioides, ameliorates the myocardial ischemia-reperfusion injury by AKT/PKCε/eNOS-dependent pathways. Naunyn Schmiedebergs Arch Pharmacol 2019; 393:629-638. [PMID: 31776590 DOI: 10.1007/s00210-019-01761-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/01/2019] [Indexed: 01/21/2023]
Abstract
PURPOSE To determine the actions of isoespintanol (Isoesp) on post-ischemic myocardial and mitochondrial alterations. METHODS Hearts removed from Wistar rats were perfused by 20 min. After this period, the coronary flow was interrupted by half an hour and re-established during 1 h. In the treated group, Isoesp was administered at the beginning of reperfusion. To assess the participation of ε isoform of protein kinase C (PKCε), protein kinase B (PKB/Akt), and nitric oxide synthase (NOS), hearts were treated with Isoesp plus the respective inhibitors (chelerythrine, wortmannin, and N-nitro-L-arginine methyl ester). Cell death was determined by triphenyl tetrazolium chloride staining technique. Post-ischemic recovery of contractility, oxidative stress, and content of phosphorylated forms of PKCε, Akt, and eNOS were also examined. Mitochondrial state was assessed through the measurement of calcium-mediated response, calcium retention capacity, and mitochondrial potential. RESULTS Isoesp limited cell death, decreased post-ischemic dysfunction and oxidative stress, improved mitochondrial state, and increased the expression of PKCε, Akt, and eNOS phosphorylated. All these beneficial effects achieved by Isoesp were annulled by the inhibitors. CONCLUSION These findings suggest that activation of Akt/eNOS and PKCε signaling pathways are involved in the development of Isoesp-induced cardiac and mitochondria tolerance to ischemia-reperfusion.
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Affiliation(s)
- Luisa F González Arbeláez
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E. Cingolani¨, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina
| | - Alejandro Ciocci Pardo
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E. Cingolani¨, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina
| | - Juliana C Fantinelli
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E. Cingolani¨, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina
| | - Benjamín Rojano
- Laboratorio de Ciencias de los Alimentos, Facultad de Ciencias, Universidad Nacional de Colombia (sede Medellín), Bogotá, Colombia
| | - Guillermo R Schinella
- Facultad de Ciencias Médicas, Universidad Nacional de La Plata CIC-PBA, La Plata, Argentina
| | - Susana M Mosca
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E. Cingolani¨, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina.
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Genistein Protects Against Burn-Induced Myocardial Injury via Notch1-Mediated Suppression of Oxidative/Nitrative Stress. Shock 2019; 54:337-346. [DOI: 10.1097/shk.0000000000001464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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26
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Transcatheter Aortic Valve Replacement Is Associated with Less Oxidative Stress and Faster Recovery of Antioxidant Capacity than Surgical Aortic Valve Replacement. J Clin Med 2019; 8:jcm8091364. [PMID: 31480644 PMCID: PMC6781199 DOI: 10.3390/jcm8091364] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 02/06/2023] Open
Abstract
The objective of this study was to compare oxidative stress indices in 24 patients (mean ± SD age 71 ± 13 years) undergoing surgical aortic valve replacement (SAVR) versus transcatheter aortic valve replacement (TAVR). Serum total antioxidant capacity (TAC), copper/zinc ratio (Cu/Zn), activity of lactate dehydrogenase (LDH), and thiobarbituric acid reactive substances (TBARS) were assessed at four different time-points: pre-procedure, immediately post-procedure, and one day and two days after the procedure. All oxidative stress parameters were comparable in both groups pre-procedure. TAC decreased significantly when assessed immediately after procedures in both groups (p < 0.001); however, the magnitude of the reduction was more pronounced after SAVR (88% decrease from baseline: 1.8 ± 0.1 vs. 0.2 ± 0.03 mM) compared to TAVR procedures (53% decrease from baseline: 1.9 ± 0.1 vs. 1.0 ± 0.1 mM; p < 0.001). TAC returned to baseline two days after TAVR in all patients, but was still reduced by 55% two days after SAVR. In concordance, TBARS levels and Cu/Zn ratio increased significantly with maximum levels immediately after procedures in both groups (p < 0.001), but the magnitude of the increase was significantly higher in SAVR compared to TAVR (TBARS: 3.93 ± 0.61 µM vs. 1.25 ± 0.30 µM, p = 0.015; Cu/Zn ratio: 2.33 ± 0.11 vs. 1.80 ± 0.12; p < 0.001). Two days after the procedure, TBARS levels and the Cu/Zn ratio returned to baseline after TAVR, with no full recovery after SAVR. TAVR is associated with a lesser redox imbalance and faster recovery of antioxidant capacity compared to SAVR.
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Baumgartner T, Zurauskaité G, Wirz Y, Meier M, Steuer C, Bernasconi L, Huber A, Christ-Crain M, Henzen C, Hoess C, Thomann R, Zimmerli W, Mueller B, Schuetz P. Association of the Tyrosine/Nitrotyrosine pathway with death or ICU admission within 30 days for patients with community acquired pneumonia. BMC Infect Dis 2018; 18:423. [PMID: 30143005 PMCID: PMC6109359 DOI: 10.1186/s12879-018-3335-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 08/15/2018] [Indexed: 01/20/2023] Open
Abstract
Background Oxidative stress is a modifiable risk-factor in infection causing damage to human cells. As an adaptive response, cells catabolize Tyrosine to 3-Nitrotyrosine (Tyr-NO2) by nitrosylation. We investigated whether a more efficient reduction in oxidative stress, mirrored by a lowering of Tyrosine, and an increase in Tyr-NO2 and the Tyrosine/Tyr-NO2 ratio was associated with better clinical outcomes in patients with community-acquired pneumonia (CAP). Methods We measured Tyrosine and Tyr-NO2 in CAP patients from a previous randomized Swiss multicenter trial. The primary endpoint was adverse outcome defined as death or ICU admission within 30-days; the secondary endpoint was 6-year mortality. Results Of 278 included CAP patients, 10.4% experienced an adverse outcome within 30 days and 45.0% died within 6 years. After adjusting for the pneumonia Severity Index [PSI], BMI and comorbidities, Tyrosine nitrosylation was associated with a lower risk for short-term adverse outcome and an adjusted OR of 0.44 (95% CI 0.20 to 0.96, p = 0.039) for Tyr-NO2 and 0.98 (95% CI 0.98 to 0.99, p = 0.043) for the Tyrosine/Tyr-NO2 ratio. There were no significant associations for long-term mortality over six-years for Tyr-NO2 levels (adjusted hazard ratio 0.81, 95% CI 0.60 to 1.11, p = 0.181) and Tyrosine/Tyr-NO2 ratio (adjusted hazard ratio 1.00, 95% CI 0.99 to 1.00, p = 0.216). Conclusions Tyrosine nitrosylation in our cohort was associated with better clinical outcomes of CAP patients at short-term, but not at long term. Whether therapeutic modulation of the Tyrosine/Tyr-NO2 pathway has beneficial effects should be evaluated in future studies. Trial registration ISRCTN95122877. Registered 31 July 2006.
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Affiliation(s)
- Thomas Baumgartner
- Division of Endocrinology, Diabetology and Metabolism, Kantonsspital Aarau, Medical University Department, Aarau, Switzerland.
| | - Giedré Zurauskaité
- Division of Endocrinology, Diabetology and Metabolism, Kantonsspital Aarau, Medical University Department, Aarau, Switzerland
| | - Yannick Wirz
- Division of Endocrinology, Diabetology and Metabolism, Kantonsspital Aarau, Medical University Department, Aarau, Switzerland
| | - Marc Meier
- Division of Endocrinology, Diabetology and Metabolism, Kantonsspital Aarau, Medical University Department, Aarau, Switzerland
| | - Christian Steuer
- Department of Laboratory Medicine Kantonsspital Aarau, Aarau, Switzerland
| | - Luca Bernasconi
- Department of Laboratory Medicine Kantonsspital Aarau, Aarau, Switzerland
| | - Andreas Huber
- Department of Laboratory Medicine Kantonsspital Aarau, Aarau, Switzerland
| | - Mirjam Christ-Crain
- Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
| | - Christoph Henzen
- Department of Internal Medicine, Kantonsspital Luzern, Lucerne, Switzerland
| | - Claus Hoess
- Department of Internal Medicine, Kantonsspital Münsterlingen, Münsterlingen, Switzerland
| | - Robert Thomann
- Department of Internal Medicine, Bürgerspital Solothurn, Solothurn, Switzerland
| | - Werner Zimmerli
- Department of Internal Medicine, Kantonsspital Liestal, Liestal, Switzerland
| | - Beat Mueller
- Division of Endocrinology, Diabetology and Metabolism, Kantonsspital Aarau, Medical University Department, Aarau, Switzerland
| | - Philipp Schuetz
- Division of Endocrinology, Diabetology and Metabolism, Kantonsspital Aarau, Medical University Department, Aarau, Switzerland
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A metabolomics study of Qiliqiangxin in a rat model of heart failure: a reverse pharmacology approach. Sci Rep 2018; 8:3688. [PMID: 29487344 PMCID: PMC5829193 DOI: 10.1038/s41598-018-22074-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 02/16/2018] [Indexed: 12/31/2022] Open
Abstract
The Chinese medicine Qiliqiangxin (QL) has been shown to have a protective role in heart failure. Here, we explore the underlying working mechanism of the key therapeutic component in QL using a rat model of heart failure. Heart failure after myocardial infarction was induced surgically and confirmed using echocardiography; a separate group of rats underwent sham surgery. The rats with heart failure were randomly assigned to receive QL, the angiotensin-converting enzyme inhibitor benazepril, or placebo groups. Blood samples were collected from the rats at four time points for up to 8 weeks and used for biochemical analysis and mass spectrometry‒based metabolomics profiling. In total, we measured nine well-known biochemical parameters of heart failure and 147 metabolites. In the rats with heart failure, QL significantly improved these biochemical parameters and metabolomics profiles, significantly increasing the cardioprotective parameter angiopoietin-like 4 and significantly lowering inflammation-related oxylipins and lysophosphatidic acids compared to benazepril. Mechanistically, QL may improve outcome in heart failure by controlling inflammatory process and cardiac hypertrophy. Clinical studies should be designed in order to investigate these putative mechanisms in patients.
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Khan V, Sharma S, Bhandari U, Ali SM, Haque SE. Raspberry ketone protects against isoproterenol-induced myocardial infarction in rats. Life Sci 2017; 194:205-212. [PMID: 29225109 DOI: 10.1016/j.lfs.2017.12.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/28/2017] [Accepted: 12/06/2017] [Indexed: 12/12/2022]
Abstract
AIM The cardioprotective role of raspberry ketone (RK) against isoproterenol (ISO)-induced myocardial infarction (MI) in rats was assessed. MATERIALS AND METHODS Rats were randomly divided into Group I - Vehicle control; Group II - Toxic control ISO (85mg/kg, s.c.); Group III, IV and V - RK (50, 100 and 200mg/kg, respectively) with ISO; Group VI- RK (200mg/kg) alone; Group VII - Propranolol (10mg/kg) with ISO; and Group VIII - Propranolol (10mg/kg) alone. After twenty-four hours of the last dose, animals were sacrificed and creatine kinase-MB, lactate dehydrogenase, total cholesterol, triglycerides, high-density-lipoprotein, low-density-lipoprotein, very-low-density-lipoprotein, malondialdehyde, reduced glutathione, superoxide dismutase, catalase, Na+, K+-ATPase, nitric oxide, histopathological and immunohistochemical analysis (tumor necrosis factor-α and inducible nitric oxide synthase) were performed. KEY FINDINGS Treatment with ISO significantly deviated the biochemical parameters from the normal levels, which were considerably restored by RK at 100 and 200mg/kg doses. 50mg/kg dose, however, did not demonstrate any significant cardioprotective action. The histopathological and immunohistochemical analysis further substantiated these findings. SIGNIFICANCE Our study showed a dose-dependent reduction in oxidative stress, inflammation and dyslipidemia by RK in ISO-intoxicated rats, which signifies that RK from the European red raspberry plant might be a valuable entity for the management of MI.
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Affiliation(s)
- Vasim Khan
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India
| | - Sumit Sharma
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India
| | - Uma Bhandari
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India
| | - Syed Mansoor Ali
- Department of Biotechnology, Jamia Milia Islamia, New Delhi 110025, India
| | - Syed Ehtaishamul Haque
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India.
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Naumenko SE, Latysheva TV. Peculiarities of the Development of the Myocardial Infarction in ISIAH Rats. Bull Exp Biol Med 2017; 164:30-32. [PMID: 29124535 DOI: 10.1007/s10517-017-3919-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Indexed: 11/28/2022]
Abstract
We studied peculiarities of the development of myocardial infarction in rats with inherited stress-induced arterial hypertension (ISIAH rats). The control group consisted of Wistar rats. Occlusion of the left coronary artery (30 min) followed by reperfusion (120 min) was performed. The infarct size was determined relative to the risk zone by staining with 1% triphenyltetrazolium. BP, blood filling, and blood flow in the caudal vessels were measured. The infarct size was 31.5±3.0% of the risk zone in Wistar rats and 47.9±4.4% in ISIAH rats (p=0.026). No correlations of infarction size and BP or HR were found at the study stages. In ISIAH rats, local 30-min ischemia followed by 120-min reperfusion caused greater myocardial infarction that did not depend on BP or HR.
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Affiliation(s)
- S E Naumenko
- Research Institute of Physiology and Fundamental Medicine, Novosibirsk, Russia.
| | - T V Latysheva
- Research Institute of Physiology and Fundamental Medicine, Novosibirsk, Russia
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Oxidative Stress-Related Parthanatos of Circulating Mononuclear Leukocytes in Heart Failure. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:1249614. [PMID: 29250299 PMCID: PMC5700485 DOI: 10.1155/2017/1249614] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/24/2017] [Accepted: 09/18/2017] [Indexed: 12/27/2022]
Abstract
Background The present study aims to examine the oxidative stress-related activation of poly(ADP-ribose) polymerase (PARP), a cause of parthanatos in circulating mononuclear leukocytes of patients with chronic heart failure (CHF), that was rarely investigated in the human setting yet. Methods Patients with CHF (n = 20) and age- and body mass index-matched volunteers (n = 15) with a normal heart function were enrolled. C-reactive protein, N-terminal probrain-type natriuretic peptide (pro-BNP), plasma total peroxide level (PRX), plasma total antioxidant capacity (TAC), oxidative stress index (OSI), leukocyte lipid peroxidation (4-hydroxynonenal; HNE), protein tyrosine nitration (NT), poly(ADP-ribosyl)ation (PARylation), and apoptosis-inducing factor (AIF) translocation were measured in blood samples of fasting subjects. Results Plasma PRX, leukocyte HNE, NT, PARylation, and AIF translocation were significantly higher in the heart failure group. Pro-BNP levels in all study subjects showed a significant positive correlation to PRX, OSI, leukocyte HNE, NT, PARylation, and AIF translocation. Ejection fraction negatively correlated with the same parameters. Among HF patients, a positive correlation of pro-BNP with PRX, OSI, and PARylation was still present. Conclusions Markers of oxidative-nitrative stress, PARP activation, and AIF translocation in blood components showed correlation to reduced cardiac function and the clinical appearance of CHF. These results may reinforce the consideration of PARP inhibition as a potential therapeutic target in CHF.
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Andreadou I, Iliodromitis EK, Lazou A, Görbe A, Giricz Z, Schulz R, Ferdinandy P. Effect of hypercholesterolaemia on myocardial function, ischaemia-reperfusion injury and cardioprotection by preconditioning, postconditioning and remote conditioning. Br J Pharmacol 2017; 174:1555-1569. [PMID: 28060997 DOI: 10.1111/bph.13704] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 12/16/2016] [Accepted: 12/20/2016] [Indexed: 01/15/2023] Open
Abstract
Hypercholesterolaemia is considered to be a principle risk factor for cardiovascular disease, having direct negative effects on the myocardium itself, in addition to the development of atherosclerosis. Since hypercholesterolaemia affects the global cardiac gene expression profile, among many other factors, it results in increased myocardial oxidative stress, mitochondrial dysfunction and inflammation triggered apoptosis, all of which may account for myocardial dysfunction and increased susceptibility of the myocardium to infarction. In addition, numerous experimental and clinical studies have revealed that hyperlcholesterolaemia may interfere with the cardioprotective potential of conditioning mechanisms. Although not fully elucidated, the underlying mechanisms for the lost cardioprotection in hypercholesterolaemic animals have been reported to involve dysregulation of the endothelial NOS-cGMP, reperfusion injury salvage kinase, peroxynitrite-MMP2 signalling pathways, modulation of ATP-sensitive potassium channels and apoptotic pathways. In this review article, we summarize the current knowledge on the effect of hypercholesterolaemia on the non-ischaemic and ischaemic heart as well as on the cardioprotection induced by drugs or ischaemic preconditioning, postconditioning and remote conditioning. Future perspectives concerning the mechanisms and the design of preclinical and clinical trials are highlighted. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
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Affiliation(s)
- Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Efstathios K Iliodromitis
- Second Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
| | - Antigone Lazou
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anikó Görbe
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary.,Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - Zoltán Giricz
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - Rainer Schulz
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary.,Department of Physiology, Justus-Liebig-University, Giessen, Germany
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary.,Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
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Aghajani M, Faghihi M, Imani A, Vaez Mahdavi MR, Shakoori A, Rastegar T, Parsa H, Mehrabi S, Moradi F, Kazemi Moghaddam E. Post-infarct sleep disruption and its relation to cardiac remodeling in a rat model of myocardial infarction. Chronobiol Int 2017; 34:587-600. [PMID: 28156163 DOI: 10.1080/07420528.2017.1281823] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Sleep disruption after myocardial infarction (MI) by affecting ubiquitin-proteasome system (UPS) is thought to contribute to myocardial remodeling and progressive worsening of cardiac function. The aim of current study was to test the hypothesis about the increased risk of developing heart failure due to experience of sleep restriction (SR) after MI. Male Wistar rats (n = 40) were randomly assigned to four experimental groups: (1) Sham, (2) MI, (3) MI and SR (MI + SR) (4) Sham and SR (Sham + SR). MI was induced by permanent ligation of left anterior descending coronary artery. Twenty-four hours after surgery, animals were subjected to chronic SR paradigm. Blood sampling was performed at days 1, 8 and 21 after MI for determination of serum levels of creatine kinase-MB (CK-MB), corticosterone, malondialdehyde (MDA) and nitric oxide (NO). Finally, at 21 days after MI, echocardiographic parameters and expression of MuRF1, MaFBx, A20, eNOS, iNOS and NF-kB in the heart were evaluated. We used H&E staining to detect myocardial hypertrophy. We found out that post infarct SR increased corticosterone levels. Our results highlighted deteriorating effects of post-MI SR on NO production, oxidative stress, and echocardiographic indexes (p < 0.05). Moreover, its detrimental effects on myocardial damage were confirmed by overexpression of MuRF1, MaFBx, iNOS and NF-kB (p < 0.001) in left ventricle and downregulation of A20 and eNOS (p < 0.05). Furthermore, histological examination revealed that experience of SR after MI increased myocardial diameter as compared to Sham subjects (p < 0.05). Our data suggest that SR after MI leads to an enlargement of the heart within 21 days, marked by an increase in oxidative stress and NO production as well as an imbalance in UPS that ultimately results in cardiac dysfunction and heart failure.
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Affiliation(s)
- Marjan Aghajani
- a Physiology Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Mahdieh Faghihi
- a Physiology Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Alireza Imani
- a Physiology Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran.,b Occupational Sleep Research Center, Tehran University of Medical Sciences , Tehran , Iran
| | - Mohammad Reza Vaez Mahdavi
- c Traditional Medicine Clinical Trial Research Center, Shahed University , Tehran , Iran.,d Department of Physiology , Medical Faculty, Shahed University , Tehran , Iran
| | - Abbas Shakoori
- e Genetic Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Tayebeh Rastegar
- f Anatomy Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Hoda Parsa
- a Physiology Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Saman Mehrabi
- e Genetic Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Fatemeh Moradi
- a Physiology Department , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Ehsan Kazemi Moghaddam
- g Shiraz Burn and Wound Healing Research Center, Amir-al-momenin Burn Hospital, Shiraz University of Medical Sciences , Iran.,h Department of Microbiology , Medical Faculty, Shahed University , Tehran , Iran
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Li ZH, Tan ZL, Ding AX, Gong B, Lu ZL, He L. NO-Responsive vesicles as a drug delivery system. Chem Commun (Camb) 2017; 53:3535-3538. [DOI: 10.1039/c7cc00918f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A NO-response amphiphile was successfully formed into vesicles in aqueous solution, which could encapsulate and control the release of carboxyfluorescein (CF) as a model drug in vitro and in living cells.
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Affiliation(s)
- Zhi-Heng Li
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Zheng-Li Tan
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Ai-Xiang Ding
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Bing Gong
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Zhong-Lin Lu
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Lan He
- National Institute for Food and Drug Control
- Institute of Chemical Drug Control
- Beijing
- China
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35
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Varga ZV, Matyas C, Paloczi J, Pacher P. Alcohol Misuse and Kidney Injury: Epidemiological Evidence and Potential Mechanisms. Alcohol Res 2017; 38:283-288. [PMID: 28988579 PMCID: PMC5513691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chronic alcohol consumption is a well-known risk factor for tissue injury. The link between alcohol use disorder (AUD) and kidney injury is intriguing but controversial, and the molecular mechanisms by which alcohol may damage the kidneys are poorly understood. Epidemiological studies attempting to link AUD and kidney disease are, to date, inconclusive, and there is little experimental evidence directly linking alcohol consumption to kidney injury. However, studies conducted primarily in other organs and tissues suggest several possible mechanisms by which alcohol may promote kidney dysfunction. One possible mechanism is oxidative stress resulting from increased production of reactive oxygen species, which leads to an excessive amount of free radicals, which in turn trigger tissue injury and increase inflammation. In addition, AUD's effect on other major organs (liver, heart, intestines, and skeletal muscle) appears to promote unfavorable pathological processes that are harmful to the kidneys. Notably, these mechanisms have not yet been validated experimentally in the kidney. Additional research is needed to clarify if alcohol does indeed promote kidney injury and the mechanisms by which alcohol-induced kidney injury may occur.
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Fernandez‐Patron C, Kassiri Z, Leung D. Modulation of Systemic Metabolism by MMP‐2: From MMP‐2 Deficiency in Mice to MMP‐2 Deficiency in Patients. Compr Physiol 2016; 6:1935-1949. [DOI: 10.1002/cphy.c160010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Salimi A, Gholamifar E, Naserzadeh P, Hosseini MJ, Pourahmad J. Toxicity of lithium on isolated heart mitochondria and cardiomyocyte: A justification for its cardiotoxic adverse effect. J Biochem Mol Toxicol 2016; 31. [PMID: 27588890 DOI: 10.1002/jbt.21836] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 07/24/2016] [Accepted: 08/10/2016] [Indexed: 11/12/2022]
Abstract
Mitochondria play an important role in myocardial tissue homeostasis; therefore, deterioration in mitochondrial function will eventually lead to cardiomyocyte and endothelial cell death and consequently cardiovascular dysfunction. Lithium (Li+ ) is an effective drug for bipolar disorder with known cardiotoxic side effects. This study was designed to investigate the effects of Li+ on mitochondria and cardiomyocytes isolated from the heart of Wistar rat. Results revealed that Li+ induced a concentration- and time-dependent rise in mitochondrial ROS formation, inhibition of respiratory complexes (II), mitochondrial membrane potential (MMP) collapse, mitochondrial swelling, and cytochrome c release in rat heart mitochondria and also induced Caspase 3 activation through mitochondrial pathway, decline of ATP and lipid peroxidation in rat cardiomyocytes. These results indicate that the cardiotoxic effects of Li+ were initiated from mitochondrial dysfunction and oxidative stress, which finally ends in cytochrome c release and cell death signaling heart cardiomyocytes.
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Affiliation(s)
- Ahmad Salimi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Students Research Committee, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Ardabil University of Medical Science, Ardabil, Iran
| | - Ehsan Gholamifar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parvaneh Naserzadeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Ardabil University of Medical Science, Ardabil, Iran
| | - Mir-Jamal Hosseini
- Zanjan Applied Pharmacology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Jalal Pourahmad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Cabrillana ME, Uribe P, Villegas JV, Álvarez J, Sánchez R, Fornés MW. Thiol oxidation by nitrosative stress: Cellular localization in human spermatozoa. Syst Biol Reprod Med 2016; 62:325-34. [PMID: 27487446 DOI: 10.1080/19396368.2016.1208782] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
UNLABELLED Peroxynitrite is a highly reactive nitrogen species and when it is generated at high levels it causes nitrosative stress, an important cause of impaired sperm function. High levels of peroxynitrite have been shown to correlate with decreased semen quality in infertile men. Thiol groups in sperm are mainly found in enzymes, antioxidant molecules, and structural proteins in the axoneme. Peroxynitrite primarily reacts with thiol groups of cysteine-containing proteins. Although it is well known that peroxynitrite oxidizes sulfhydryl groups in sperm, the subcellular localization of this oxidation remains unknown. The main objective of this study was to establish the subcellular localization of peroxynitrite-induced nitrosative stress in thiol groups and its relation to sperm motility in human spermatozoa. For this purpose, spermatozoa from healthy donors were exposed in vitro to 3-morpholinosydnonimine (SIN-1), a compound which generates peroxynitrite. In order to detect peroxynitrite and reduced thiol groups, the fluorescent probes, dihydrorhodamine 123 and monobromobimane (mBBr), were used respectively. Sperm viability was analyzed by propidium iodide staining. Peroxynitrite generation and thiol redox state were monitored by confocal microscopy whereas sperm viability was evaluated by flow cytometry. Sperm motility was analyzed by CASA using the ISAS(®) system. The results showed that exposure of human spermatozoa to peroxynitrite results in increased thiol oxidation which is mainly localized in the sperm head and principal piece regions. Thiol oxidation was associated with motility loss. The high susceptibility of thiol groups to peroxynitrite-induced oxidation could explain, at least in part, the negative effect of reactive nitrogen species on sperm motility. ABBREVIATIONS DHR: dihydrorhodamine 123; mBBr: monobromobimane ONOO(-): peroxynitrite RNS: reactive nitrogen species RFI: relative fluorescence intensity SIN-1: 3-morpholinosydnonimine CASA: Computer-Aided Sperm Analysis PARP: poli ADP ribose polimerasa VCL: curvilinear velocity VSL: straight-line velocity VAP: average path velocity PRDXs: peroxiredoxins ODF: outer dense fiber ODF1: outer dense fiber 1 PI: propidium iodide DMSO: dimethyl sulfoxide SD: standard deviation ANOVA analysis of variance.
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Affiliation(s)
- María E Cabrillana
- a Laboratory of Andrology Research of Mendoza (LIAM) Institute of Histology and Embriology of Mendoza (IHEM) Histology and Embryology Area, Department of Morphology and Physiology , School of Medicine, National University of Cuyo & CCT-Mendoza , CONICET, Mendoza , Argentina.,b Research Institute (CIUDA), Medicine Faculty , Universidad del Aconcagua , Mendoza , Argentina
| | - Pamela Uribe
- c Center of Reproductive Biotechnology - Scientific and Technological Bioresource Nucleus (CEBIOR-BIOREN) , Universidad de La Frontera , Temuco , Chile
| | - Juana V Villegas
- c Center of Reproductive Biotechnology - Scientific and Technological Bioresource Nucleus (CEBIOR-BIOREN) , Universidad de La Frontera , Temuco , Chile.,d Department of Internal Medicine, Medicine Faculty , Universidad de La Frontera , Temuco , Chile
| | - Juan Álvarez
- e Centro ANDROGEN, La Coruña , Spain.,f Harvard Medical School , Boston , Massachusetts , USA
| | - Raúl Sánchez
- c Center of Reproductive Biotechnology - Scientific and Technological Bioresource Nucleus (CEBIOR-BIOREN) , Universidad de La Frontera , Temuco , Chile.,g Department of Preclinical Science, Medicine Faculty , Universidad de La Frontera , Temuco , Chile
| | - Miguel W Fornés
- a Laboratory of Andrology Research of Mendoza (LIAM) Institute of Histology and Embriology of Mendoza (IHEM) Histology and Embryology Area, Department of Morphology and Physiology , School of Medicine, National University of Cuyo & CCT-Mendoza , CONICET, Mendoza , Argentina.,b Research Institute (CIUDA), Medicine Faculty , Universidad del Aconcagua , Mendoza , Argentina
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Li X, Li W, Gao Z, Li H. Association of cardiac injury with iron-increased oxidative and nitrative modifications of the SERCA2a isoform of sarcoplasmic reticulum Ca2+-ATPase in diabetic rats. Biochimie 2016; 127:144-52. [DOI: 10.1016/j.biochi.2016.05.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 05/17/2016] [Indexed: 12/21/2022]
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40
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Cruz N, Miranda JD, Crespo MJ. Modulation of Vascular ACE by Oxidative Stress in Young Syrian Cardiomyopathic Hamsters: Therapeutic Implications. J Clin Med 2016; 5:jcm5070064. [PMID: 27420103 PMCID: PMC4961995 DOI: 10.3390/jcm5070064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/05/2016] [Accepted: 07/07/2016] [Indexed: 01/23/2023] Open
Abstract
Increased vascular angiotensin-converting enzyme (ACE) activity and oxidative stress are present in young Syrian cardiomyopathic hamsters (SCH) before the clinical manifestation of heart failure (HF). The developmental time-course of these alterations and their potential interactions, however, are still unknown. We evaluated mRNA and protein levels of ACE, endothelial nitric oxide synthase (eNOS), and inducible nitric oxide synthase (iNOS) in the vasculature of SCH from one to four months of age. Total RNA and proteins were quantified with real-time reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blot, respectively. The role of nitric oxide (NO) on vascular ACE activity was also assessed. ACE mRNA and protein levels were up-regulated in SCH at two months of age compared with controls (CT) (p < 0.05). At this two-month stage, eNOS protein levels were lower in SCH (87%) than in CT (100%) (p < 0.05), although iNOS protein levels increased significantly (482%) compared to CT (100%; p < 0.05). In addition, ACE mRNA expression and activity were modulated by NO at two months of age. Thus, the combination of low eNOS and high iNOS protein levels may underlie vascular renin-angiotensin system (RAS) over-activation. Altogether, these factors may contribute to the development of endothelial dysfunction and vascular hyper-reactivity in the early stages of heart failure, and eventually trigger cardiac deterioration in this animal model of HF.
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Affiliation(s)
- Nildris Cruz
- Department of Physiology, University of Puerto Rico-School of Medicine, San Juan 00936, Puerto Rico.
| | - Jorge D Miranda
- Department of Physiology, University of Puerto Rico-School of Medicine, San Juan 00936, Puerto Rico.
| | - Maria J Crespo
- Department of Physiology, University of Puerto Rico-School of Medicine, San Juan 00936, Puerto Rico.
- Department of Anesthesiology, University of Puerto Rico-School of Medicine, San Juan 00936, Puerto Rico.
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Shirakura T, Nomura J, Matsui C, Kobayashi T, Tamura M, Masuzaki H. Febuxostat, a novel xanthine oxidoreductase inhibitor, improves hypertension and endothelial dysfunction in spontaneously hypertensive rats. Naunyn Schmiedebergs Arch Pharmacol 2016; 389:831-8. [PMID: 27198514 PMCID: PMC4939152 DOI: 10.1007/s00210-016-1239-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 03/28/2016] [Indexed: 02/07/2023]
Abstract
Xanthine oxidase (XO) is an enzyme responsible for the production of uric acid. XO produces considerable amount of oxidative stress throughout the body. To date, however, its pathophysiologic role in hypertension and endothelial dysfunction still remains controversial. To explore the possible involvement of XO-derived oxidative stress in the pathophysiology of vascular dysfunction, by use of a selective XO inhibitor, febuxostat, we investigated the impact of pharmacological inhibition of XO on hypertension and vascular endothelial dysfunction in spontaneously hypertensive rats (SHRs). Sixteen-week-old SHR and normotensive Wistar-Kyoto (WKY) rats were treated with tap water (control) or water containing febuxostat (3 mg/kg/day) for 6 weeks. Systolic blood pressure (SBP) in febuxostat-treated SHR (220 ± 3 mmHg) was significantly (P < 0.05) decreased compared with the control SHR (236 ± 4 mmHg) while SBP in febuxostat-treated WKY was constant. Acetylcholine-induced endothelium-dependent relaxation in aortas from febuxostat-treated SHR was significantly (P < 0.05) improved compared with the control SHR, whereas relaxation in response to sodium nitroprusside was not changed. Vascular XO activity and tissue nitrotyrosine level, a representative indicator of local oxidative stress, were considerably elevated in the control SHR compared with the control WKY, and this increment was abolished by febuxostat. Our results suggest that exaggerated XO activity and resultant increase in oxidative stress in this experimental model contribute to the hypertension and endothelial dysfunction, thereby supporting a notion that pharmacological inhibition of XO is valuable not only for hyperuricemia but also for treating hypertension and related endothelial dysfunction in human clinics.
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Affiliation(s)
- Takashi Shirakura
- Pharmaceutical Development Research Laboratories, Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd., 4-3-2, Asahigaoka, Hino, 191-852, Tokyo, Japan.
| | - Johji Nomura
- Pharmaceutical Development Research Laboratories, Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd., 4-3-2, Asahigaoka, Hino, 191-852, Tokyo, Japan
| | - Chieko Matsui
- Pharmaceutical Development Research Laboratories, Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd., 4-3-2, Asahigaoka, Hino, 191-852, Tokyo, Japan
| | - Tsunefumi Kobayashi
- Pharmaceutical Development Research Laboratories, Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd., 4-3-2, Asahigaoka, Hino, 191-852, Tokyo, Japan
| | - Mizuho Tamura
- Pharmaceutical Development Research Laboratories, Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd., 4-3-2, Asahigaoka, Hino, 191-852, Tokyo, Japan
| | - Hiroaki Masuzaki
- Division of Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology (Second Department of Internal Medicine), Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa, Japan
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Protective Effects of Carvedilol and Vitamin C against Azithromycin-Induced Cardiotoxicity in Rats via Decreasing ROS, IL1-β, and TNF-α Production and Inhibiting NF-κB and Caspase-3 Expression. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:1874762. [PMID: 27274777 PMCID: PMC4871977 DOI: 10.1155/2016/1874762] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 03/27/2016] [Accepted: 04/12/2016] [Indexed: 01/24/2023]
Abstract
The Food and Drug Administration recently warned of the fatal cardiovascular risks of azithromycin in humans. In addition, a recently published study documented azithromycin-induced cardiotoxicity in rats. This study aimed to justify the exact cardiovascular events accompanying azithromycin administration in rats, focusing on electrocardiographic, biochemical, and histopathological changes. In addition, the underlying mechanisms were studied regarding reactive oxygen species production, cytokine release, and apoptotic cell-death. Finally, the supposed protective effects of both carvedilol and vitamin C were assessed. Four groups of rats were used: (1) control, (2) azithromycin, (3) azithromycin + carvedilol, and (4) azithromycin + vitamin C. Azithromycin resulted in marked atrophy of cardiac muscle fibers and electrocardiographic segment alteration. It increased the heart rate, lactate dehydrogenase, creatine phosphokinase, malondialdehyde, nitric oxide, interleukin-1 beta (IL1-β), tumor necrosis factor alpha (TNF-α), nuclear factor kappa beta (NF-κB), and caspase-3. It decreased reduced glutathione, glutathione peroxidase, and superoxide dismutase. Carvedilol and vitamin C prevented most of the azithromycin-induced electrocardiographic and histopathological changes. Carvedilol and vitamin C decreased lactate dehydrogenase, malondialdehyde, IL1-β, TNF-α, NF-κB, and caspase-3. Both agents increased glutathione peroxidase. This study shows that both carvedilol and vitamin C protect against azithromycin-induced cardiotoxicity through antioxidant, immunomodulatory, and antiapoptotic mechanisms.
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Peroxisome proliferator-activated receptor-α stimulation by clofibrate favors an antioxidant and vasodilator environment in a stressed left ventricle. Pharmacol Rep 2016; 68:692-702. [PMID: 27110876 DOI: 10.1016/j.pharep.2016.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Arterial high blood pressure is a risk factor for target organ damage; the most susceptible organs are the arteries, brain, kidneys, and heart. The damage mechanisms include oxidative stress and renin-angiotensin system (RAS) overactivity. Therefore, our aim was to study whether clofibrate-induced peroxisome proliferator-activated receptor-alpha (PPAR-α) stimulation is able to prevent alterations in cardiac functioning derived from RAS overstimulation in the left ventricle of rats with hypertension secondary to aortic coarctation and to improve antioxidant defenses. METHODS Male Wistar rats were assigned to Control (Sham)- or aortic coarctation-surgery and further divided to receive (1 or 21 days) vehicle, clofibrate (100mg/kg), captopril (20mg/kg), or clofibrate+captopril. The left ventricle was obtained to measure: angiotensin II and -(1-7), AT1 and AT2 receptors, angiotensin converting enzyme (ACE)-1 and -2, and MAS receptor; the activity and expression of superoxide dismutase, catalase, endothelial nitric oxide synthase, the production of reactive oxygen species (ROS) and peroxidated lipids; as well as ex vivo cardiac functioning. RESULTS Clofibrate decreased angiotensin II, AT1 receptor and ACE expression, and raised angiotensin-(1-7), AT2 receptor, ACE-2 expression, superoxide dismutase and endothelial nitric oxide synthase participation. These effects promoted lower coronary vascular resistance and improved mechanical work compared to aortic coarctated vehicle-treated rats. CONCLUSIONS Clofibrate-induced PPAR-α stimulation changes the angiotensin II receptor profile, favors the ACE2/angiotensin-(1-7)/AT2 receptor axis decreasing the vasoconstrictor environment, activates the antioxidant defense, and facilitates endothelial nitric oxide synthase activity favoring vasodilation. This may represent a protection for the stressed heart.
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Myeloperoxidase-Related Chlorination Activity Is Positively Associated with Circulating Ceruloplasmin in Chronic Heart Failure Patients: Relationship with Neurohormonal, Inflammatory, and Nutritional Parameters. BIOMED RESEARCH INTERNATIONAL 2015; 2015:691693. [PMID: 26539521 PMCID: PMC4619849 DOI: 10.1155/2015/691693] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 06/04/2015] [Indexed: 12/20/2022]
Abstract
Rationale. Heart failure (HF) is accompanied by the development of an imbalance between oxygen- and nitric oxide-derived free radical production leading to protein nitration. Both chlorinating and peroxidase cycle of Myeloperoxidase (MPO) contribute to oxidative and nitrosative stress and are involved in tyrosine nitration of protein. Ceruloplasmin (Cp) has antioxidant function through its ferroxidase I (FeOxI) activity and has recently been proposed as a physiological defense mechanism against MPO inappropriate actions. Objective. We investigated the relationship between plasma MPO-related chlorinating activity, Cp and FeOxI, and nitrosative stress, inflammatory, neurohormonal, and nutritional biomarkers in HF patients. Methods and Results. In chronic HF patients (n = 81, 76 ± 9 years, NYHA Class II (26); Class III (29); Class IV (26)) and age-matched controls (n = 17, 75 ± 11 years, CTR), plasma MPO chlorinating activity, Cp, FeOxI, nitrated protein, free Malondialdehyde, BNP, norepinephrine, hsCRP, albumin, and prealbumin were measured. Plasma MPO chlorinating activity, Cp, BNP, norepinephrine, and hsCRP were increased in HF versus CTR. FeOxI, albumin, and prealbumin were decreased in HF. MPO-related chlorinating activity was positively related to Cp (r = 0.363, P < 0.001), nitrated protein, hsCRP, and BNP and inversely to albumin. Conclusions. Plasma MPO chlorinated activity is increased in elderly chronic HF patients and positively associated with Cp, inflammatory, neurohormonal, and nitrosative parameters suggesting a role in HF progression.
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Varga ZV, Ferdinandy P, Liaudet L, Pacher P. Drug-induced mitochondrial dysfunction and cardiotoxicity. Am J Physiol Heart Circ Physiol 2015; 309:H1453-67. [PMID: 26386112 DOI: 10.1152/ajpheart.00554.2015] [Citation(s) in RCA: 316] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/15/2015] [Indexed: 12/14/2022]
Abstract
Mitochondria has an essential role in myocardial tissue homeostasis; thus deterioration in mitochondrial function eventually leads to cardiomyocyte and endothelial cell death and consequent cardiovascular dysfunction. Several chemical compounds and drugs have been known to directly or indirectly modulate cardiac mitochondrial function, which can account both for the toxicological and pharmacological properties of these substances. In many cases, toxicity problems appear only in the presence of additional cardiovascular disease conditions or develop months/years following the exposure, making the diagnosis difficult. Cardiotoxic agents affecting mitochondria include several widely used anticancer drugs [anthracyclines (Doxorubicin/Adriamycin), cisplatin, trastuzumab (Herceptin), arsenic trioxide (Trisenox), mitoxantrone (Novantrone), imatinib (Gleevec), bevacizumab (Avastin), sunitinib (Sutent), and sorafenib (Nevaxar)], antiviral compound azidothymidine (AZT, Zidovudine) and several oral antidiabetics [e.g., rosiglitazone (Avandia)]. Illicit drugs such as alcohol, cocaine, methamphetamine, ecstasy, and synthetic cannabinoids (spice, K2) may also induce mitochondria-related cardiotoxicity. Mitochondrial toxicity develops due to various mechanisms involving interference with the mitochondrial respiratory chain (e.g., uncoupling) or inhibition of the important mitochondrial enzymes (oxidative phosphorylation, Szent-Györgyi-Krebs cycle, mitochondrial DNA replication, ADP/ATP translocator). The final phase of mitochondrial dysfunction induces loss of mitochondrial membrane potential and an increase in mitochondrial oxidative/nitrative stress, eventually culminating into cell death. This review aims to discuss the mechanisms of mitochondrion-mediated cardiotoxicity of commonly used drugs and some potential cardioprotective strategies to prevent these toxicities.
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Affiliation(s)
- Zoltán V Varga
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland; Cardiometabolic Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Peter Ferdinandy
- Cardiometabolic Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary; and
| | - Lucas Liaudet
- Department of Intensive Care Medicine BH 08-621-University Hospital Medical Center, Lausanne, Switzerland
| | - Pál Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland;
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Liemburg-Apers DC, Willems PHGM, Koopman WJH, Grefte S. Interactions between mitochondrial reactive oxygen species and cellular glucose metabolism. Arch Toxicol 2015; 89:1209-26. [PMID: 26047665 PMCID: PMC4508370 DOI: 10.1007/s00204-015-1520-y] [Citation(s) in RCA: 239] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 04/27/2015] [Indexed: 12/20/2022]
Abstract
Mitochondrial reactive oxygen species (ROS) production and detoxification are tightly balanced. Shifting this balance enables ROS to activate intracellular signaling and/or induce cellular damage and cell death. Increased mitochondrial ROS production is observed in a number of pathological conditions characterized by mitochondrial dysfunction. One important hallmark of these diseases is enhanced glycolytic activity and low or impaired oxidative phosphorylation. This suggests that ROS is involved in glycolysis (dys)regulation and vice versa. Here we focus on the bidirectional link between ROS and the regulation of glucose metabolism. To this end, we provide a basic introduction into mitochondrial energy metabolism, ROS generation and redox homeostasis. Next, we discuss the interactions between cellular glucose metabolism and ROS. ROS-stimulated cellular glucose uptake can stimulate both ROS production and scavenging. When glucose-stimulated ROS production, leading to further glucose uptake, is not adequately counterbalanced by (glucose-stimulated) ROS scavenging systems, a toxic cycle is triggered, ultimately leading to cell death. Here we inventoried the various cellular regulatory mechanisms and negative feedback loops that prevent this cycle from occurring. It is concluded that more insight in these processes is required to understand why they are (un)able to prevent excessive ROS production during various pathological conditions in humans.
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Affiliation(s)
- Dania C. Liemburg-Apers
- />Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center (RUMC), P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Peter H. G. M. Willems
- />Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center (RUMC), P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Werner J. H. Koopman
- />Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center (RUMC), P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Sander Grefte
- />Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center (RUMC), P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
- />Department of Human and Animal Physiology, Wageningen University, P.O. Box 338, 6700 AH Wageningen, The Netherlands
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Role of Oxidative Stress in Thyroid Hormone-Induced Cardiomyocyte Hypertrophy and Associated Cardiac Dysfunction: An Undisclosed Story. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:854265. [PMID: 26146529 PMCID: PMC4471379 DOI: 10.1155/2015/854265] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Accepted: 03/07/2015] [Indexed: 01/04/2023]
Abstract
Cardiac hypertrophy is the most documented cardiomyopathy following hyperthyroidism in experimental animals. Thyroid hormone-induced cardiac hypertrophy is described as a relative ventricular hypertrophy that encompasses the whole heart and is linked with contractile abnormalities in both right and left ventricles. The increase in oxidative stress that takes place in experimental hyperthyroidism proposes that reactive oxygen species are key players in the cardiomyopathy frequently reported in this endocrine disorder. The goal of this review is to shed light on the effects of thyroid hormones on the development of oxidative stress in the heart along with the subsequent cellular and molecular changes. In particular, we will review the role of thyroid hormone-induced oxidative stress in the development of cardiomyocyte hypertrophy and associated cardiac dysfunction, as well as the potential effectiveness of antioxidant treatments in attenuating these hyperthyroidism-induced abnormalities in experimental animal models.
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Elnakish MT, Schultz EJ, Gearinger RL, Saad NS, Rastogi N, Ahmed AAE, Mohler PJ, Janssen PML. Differential involvement of various sources of reactive oxygen species in thyroxin-induced hemodynamic changes and contractile dysfunction of the heart and diaphragm muscles. Free Radic Biol Med 2015; 83:252-61. [PMID: 25795514 PMCID: PMC4441845 DOI: 10.1016/j.freeradbiomed.2015.02.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 02/12/2015] [Accepted: 02/27/2015] [Indexed: 10/23/2022]
Abstract
Thyroid hormones are key regulators of basal metabolic state and oxidative metabolism. Hyperthyroidism has been reported to cause significant alterations in hemodynamics, and in cardiac and diaphragm muscle functions, all of which have been linked to increased oxidative stress. However, the definite source of increased reactive oxygen species (ROS) in each of these phenotypes is still unknown. The goal of the current study was to test the hypothesis that thyroxin (T4) may produce distinct hemodynamic, cardiac, and diaphragm muscle abnormalities by differentially affecting various sources of ROS. Wild-type and T4 mice with and without 2-week treatments with allopurinol (xanthine oxidase inhibitor), apocynin (NADPH oxidase inhibitor), L-NIO (nitric oxide synthase inhibitor), or MitoTEMPO (mitochondria-targeted antioxidant) were studied. Blood pressure and echocardiography were noninvasively evaluated, followed by ex vivo assessments of isolated heart and diaphragm muscle functions. Treatment with L-NIO attenuated the T4-induced hypertension in mice. However, apocynin improved the left-ventricular (LV) dysfunction without preventing the cardiac hypertrophy in these mice. Both allopurinol and MitoTEMPO reduced the T4-induced fatigability of the diaphragm muscles. In conclusion, we show here for the first time that T4 exerts differential effects on various sources of ROS to induce distinct cardiovascular and skeletal muscle phenotypes. Additionally, we find that T4-induced LV dysfunction is independent of cardiac hypertrophy and NADPH oxidase is a key player in this process. Furthermore, we prove the significance of both xanthine oxidase and mitochondrial ROS pathways in T4-induced fatigability of diaphragm muscles. Finally, we confirm the importance of the nitric oxide pathway in T4-induced hypertension.
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Affiliation(s)
- Mohammad T Elnakish
- Department of Physiology and Cell Biology, College of Medicine, and; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Eric J Schultz
- Department of Physiology and Cell Biology, College of Medicine, and; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Rachel L Gearinger
- Department of Physiology and Cell Biology, College of Medicine, and; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Nancy S Saad
- Department of Physiology and Cell Biology, College of Medicine, and; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Neha Rastogi
- Department of Physiology and Cell Biology, College of Medicine, and; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Amany A E Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Peter J Mohler
- Department of Physiology and Cell Biology, College of Medicine, and; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Paul M L Janssen
- Department of Physiology and Cell Biology, College of Medicine, and; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA.
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Pei H, Song X, Peng C, Tan Y, Li Y, Li X, Ma S, Wang Q, Huang R, Yang D, Li D, Gao E, Yang Y. TNF-α inhibitor protects against myocardial ischemia/reperfusion injury via Notch1-mediated suppression of oxidative/nitrative stress. Free Radic Biol Med 2015; 82:114-21. [PMID: 25680284 DOI: 10.1016/j.freeradbiomed.2015.02.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/20/2015] [Accepted: 02/02/2015] [Indexed: 01/31/2023]
Abstract
TNF-α inhibitor reportedly protects against myocardial ischemia/reperfusion (MI/R) injury. It can also increase Notch1 expression in inflammatory bowel disease, revealing the regulation of Notch1 signaling by TNF-α inhibitor. However, the interaction between TNF-α inhibitor and Notch1 signaling in MI/R remains unclear. This study aimed to determine the involvement of TNF-α inhibitor with Notch1 in MI/R and delineate the related mechanism. Notch1-specific small interfering RNA (20 μg) or Jagged1 (a Notch ligand, 12 μg) was delivered through intramyocardial injection. Forty-eight hours after injection, mice received 30 min of myocardial ischemia followed by 3 h (for cell apoptosis and oxidative/nitrative stress) or 24h (for infarct size and cardiac function) of reperfusion. Ten minutes before reperfusion, mice randomly received an intraperitoneal injection of vehicle, etanercept, diphenyleneiodonium, 1400W, or EUK134. Finally, downregulation of Notch1 significantly reversed the alleviation of MI/R injury induced by etanercept, as evidenced by enlarged myocardial infarct size, suppressed cardiac function, and increased myocardial apoptosis. Moreover, Notch1 blockade increased the expression of inducible NO synthase (iNOS) and gp(91)(phox), enhanced NO and superoxide production, and accelerated their cytotoxic reaction product, peroxynitrite. Furthermore, NADPH inhibition with diphenyleneiodonium or iNOS suppression with 1400W mitigated the aggravation of MI/R injury induced by Notch1 downregulation in mice treated with etanercept. Additionally, either Notch1 activation with Jagged1 or peroxynitrite decomposition with EUK134 reduced nitrotyrosine content and attenuated MI/R injury. These data indicate that MI/R injury can be attenuated by TNF-α inhibitor, partly via Notch1 signaling-mediated suppression of oxidative/nitrative stress.
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Affiliation(s)
- Haifeng Pei
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Xiaofeng Song
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Chengfei Peng
- Cardiovascular Research Institute and Department of Cardiology, General Hospital of Shenyang Military Region, Shenyang 110016, China
| | - Yan Tan
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Ying Li
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Xia Li
- Department of Anatomy, Histology, and Embryology and K.K. Leung Brain Research Center, Fourth Military Medical University, Xi׳an 710032, China
| | - Shuangtao Ma
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Qiang Wang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Rong Huang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Dachun Yang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - De Li
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Erhe Gao
- Center of Translational Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - Yongjian Yang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China.
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Pathophysiological Role of Peroxynitrite Induced DNA Damage in Human Diseases: A Special Focus on Poly(ADP-ribose) Polymerase (PARP). Indian J Clin Biochem 2015; 30:368-85. [PMID: 26788021 DOI: 10.1007/s12291-014-0475-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 12/22/2014] [Indexed: 12/17/2022]
Abstract
Peroxynitrite is formed in biological systems when nitric oxide and superoxide rapidly interact at near equimolar ratio. Peroxynitrite, though not a free radical by chemical nature, is a powerful oxidant which reacts with proteins, DNA and lipids. These reactions trigger a wide array of cellular responses ranging from subtle modulations of cell signaling to overwhelming oxidative injury, committing cells to necrosis or apoptosis. The present review outlines the various peroxynitrite-induced DNA modifications with special mention to the formation of 8-nitroguanine and 8-oxoguanine as well as the induction of DNA single strand breakage. Low concentrations of peroxynitrite cause apoptotic death, whereas higher concentrations cause necrosis with cellular energetics (ATP and NAD(+)) serving as control between the two modes of cell death. DNA damage induced by peroxynitrite triggers the activation of DNA repair systems. A DNA nick sensing enzyme, poly(ADP-ribose) polymerase-1 (PARP-1) becomes activated upon detecting DNA breakage and it cleaves NAD(+) into nicotinamide and ADP-ribose and polymerizes the latter on nuclear acceptor proteins. Over-activation of PARP induced by peroxynitrite consumes NAD(+) and consequently ATP decreases, culminating in cell dysfunction, apoptosis or necrosis. This mechanism has been implicated in the pathogenesis of various diseases like diabetes, cardiovascular diseases and neurodegenerative diseases. In this review, we have discussed the cytotoxic effects (apoptosis and necrosis) of peroxynitrite in the etiology of the mentioned diseases, focusing on the role of PARP in DNA repair in presence of peroxynitrite.
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