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Zhou X, Wei C, Chen Z, Xia X, Wang L, Li X. Potential mechanisms of ischemic stroke induced by heat exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 952:175815. [PMID: 39197783 DOI: 10.1016/j.scitotenv.2024.175815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 08/04/2024] [Accepted: 08/24/2024] [Indexed: 09/01/2024]
Abstract
Recent decades of epidemiological and clinical research have suggested that heat exposure could be a potential risk factor for ischemic stroke. Despite climate factors having a minor impact on individuals compared with established risk factors such as smoking, their widespread and persistent effects significantly affect public health. The mechanisms by which heat exposure triggers ischemic stroke are currently unclear. However, several potential mechanisms, such as the impact of temperature variability on stroke risk factors, inflammation, oxidative stress, and coagulation system changes, have been proposed. This article details the potential mechanisms by which heat exposure may induce ischemic stroke, aiming to guide the prevention and treatment of high-risk groups in hot climates and support public health policy development.
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Affiliation(s)
- Xiao Zhou
- Department of Neurology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Chanjuan Wei
- Department of Neurology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Zhuangzhuang Chen
- Department of Neurology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaoshuang Xia
- Department of Neurology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Lin Wang
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xin Li
- Department of Neurology, The Second Hospital of Tianjin Medical University, Tianjin, China; Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China.
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La Chica Lhoëst MT, Martinez A, Claudi L, Garcia E, Benitez-Amaro A, Polishchuk A, Piñero J, Vilades D, Guerra JM, Sanz F, Rotllan N, Escolà-Gil JC, Llorente-Cortés V. Mechanisms modulating foam cell formation in the arterial intima: exploring new therapeutic opportunities in atherosclerosis. Front Cardiovasc Med 2024; 11:1381520. [PMID: 38952543 PMCID: PMC11215187 DOI: 10.3389/fcvm.2024.1381520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/28/2024] [Indexed: 07/03/2024] Open
Abstract
In recent years, the role of macrophages as the primary cell type contributing to foam cell formation and atheroma plaque development has been widely acknowledged. However, it has been long recognized that diffuse intimal thickening (DIM), which precedes the formation of early fatty streaks in humans, primarily consists of lipid-loaded smooth muscle cells (SMCs) and their secreted proteoglycans. Recent studies have further supported the notion that SMCs constitute the majority of foam cells in advanced atherosclerotic plaques. Given that SMCs are a major component of the vascular wall, they serve as a significant source of microvesicles and exosomes, which have the potential to regulate the physiology of other vascular cells. Notably, more than half of the foam cells present in atherosclerotic lesions are of SMC origin. In this review, we describe several mechanisms underlying the formation of intimal foam-like cells in atherosclerotic plaques. Based on these mechanisms, we discuss novel therapeutic approaches that have been developed to regulate the generation of intimal foam-like cells. These innovative strategies hold promise for improving the management of atherosclerosis in the near future.
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Affiliation(s)
- M. T. La Chica Lhoëst
- Department of Experimental Pathology, Institute of Biomedical Research of Barcelona (IIBB)-Spanish National Research Council (CSIC), Barcelona, Spain
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | - A. Martinez
- Department of Experimental Pathology, Institute of Biomedical Research of Barcelona (IIBB)-Spanish National Research Council (CSIC), Barcelona, Spain
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | - L. Claudi
- Department of Experimental Pathology, Institute of Biomedical Research of Barcelona (IIBB)-Spanish National Research Council (CSIC), Barcelona, Spain
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | - E. Garcia
- Department of Experimental Pathology, Institute of Biomedical Research of Barcelona (IIBB)-Spanish National Research Council (CSIC), Barcelona, Spain
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | - A. Benitez-Amaro
- Department of Experimental Pathology, Institute of Biomedical Research of Barcelona (IIBB)-Spanish National Research Council (CSIC), Barcelona, Spain
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | - A. Polishchuk
- Department of Experimental Pathology, Institute of Biomedical Research of Barcelona (IIBB)-Spanish National Research Council (CSIC), Barcelona, Spain
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | - J. Piñero
- Research Programme on Biomedical Informatics (GRIB), Department of Experimental and Health Sciences (DCEXS), Hospital del Mar Medical Research Institute (IMIM), Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - D. Vilades
- Department of Cardiology, Hospital de la Santa Creu I Sant Pau, Biomedical Research Institute Sant Pau (IIB-SANTPAU), Universitat Autonoma de Barcelona, Barcelona, Spain
- Department of Cardiovascular, CIBERCV, Institute of Health Carlos III, Madrid, Spain
| | - J. M. Guerra
- Department of Cardiology, Hospital de la Santa Creu I Sant Pau, Biomedical Research Institute Sant Pau (IIB-SANTPAU), Universitat Autonoma de Barcelona, Barcelona, Spain
- Department of Cardiovascular, CIBERCV, Institute of Health Carlos III, Madrid, Spain
| | - F. Sanz
- Research Programme on Biomedical Informatics (GRIB), Department of Experimental and Health Sciences (DCEXS), Hospital del Mar Medical Research Institute (IMIM), Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - N. Rotllan
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
- Department of Cardiovascular, CIBERDEM, Institute of Health Carlos III, Madrid, Spain
| | - J. C. Escolà-Gil
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
- Department of Cardiovascular, CIBERDEM, Institute of Health Carlos III, Madrid, Spain
| | - V. Llorente-Cortés
- Department of Experimental Pathology, Institute of Biomedical Research of Barcelona (IIBB)-Spanish National Research Council (CSIC), Barcelona, Spain
- Department of Cardiovascular, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
- Department of Cardiovascular, CIBERCV, Institute of Health Carlos III, Madrid, Spain
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Shi X, Li P, Herb M, Liu H, Wang M, Wang X, Feng Y, van Beers T, Xia N, Li H, Prokosch V. Pathological high intraocular pressure induces glial cell reactive proliferation contributing to neuroinflammation of the blood-retinal barrier via the NOX2/ET-1 axis-controlled ERK1/2 pathway. J Neuroinflammation 2024; 21:105. [PMID: 38649885 PMCID: PMC11034147 DOI: 10.1186/s12974-024-03075-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 03/26/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND NADPH oxidase (NOX), a primary source of endothelial reactive oxygen species (ROS), is considered a key event in disrupting the integrity of the blood-retinal barrier. Abnormalities in neurovascular-coupled immune signaling herald the loss of ganglion cells in glaucoma. Persistent microglia-driven inflammation and cellular innate immune system dysregulation often lead to deteriorating retinal degeneration. However, the crosstalk between NOX and the retinal immune environment remains unresolved. Here, we investigate the interaction between oxidative stress and neuroinflammation in glaucoma by genetic defects of NOX2 or its regulation via gp91ds-tat. METHODS Ex vivo cultures of retinal explants from wildtype C57BL/6J and Nox2 -/- mice were subjected to normal and high hydrostatic pressure (Pressure 60 mmHg) for 24 h. In vivo, high intraocular pressure (H-IOP) was induced in C57BL/6J mice for two weeks. Both Pressure 60 mmHg retinas and H-IOP mice were treated with either gp91ds-tat (a NOX2-specific inhibitor). Proteomic analysis was performed on control, H-IOP, and treatment with gp91ds-tat retinas to identify differentially expressed proteins (DEPs). The study also evaluated various glaucoma phenotypes, including IOP, retinal ganglion cell (RGC) functionality, and optic nerve (ON) degeneration. The superoxide (O2-) levels assay, blood-retinal barrier degradation, gliosis, neuroinflammation, enzyme-linked immunosorbent assay (ELISA), western blotting, and quantitative PCR were performed in this study. RESULTS We found that NOX2-specific deletion or activity inhibition effectively attenuated retinal oxidative stress, immune dysregulation, the internal blood-retinal barrier (iBRB) injury, neurovascular unit (NVU) dysfunction, RGC loss, and ON axonal degeneration following H-IOP. Mechanistically, we unveiled for the first time that NOX2-dependent ROS-driven pro-inflammatory signaling, where NOX2/ROS induces endothelium-derived endothelin-1 (ET-1) overexpression, which activates the ERK1/2 signaling pathway and mediates the shift of microglia activation to a pro-inflammatory M1 phenotype, thereby triggering a neuroinflammatory outburst. CONCLUSIONS Collectively, we demonstrate for the first time that NOX2 deletion or gp91ds-tat inhibition attenuates iBRB injury and NVU dysfunction to rescue glaucomatous RGC loss and ON axon degeneration, which is associated with inhibition of the ET-1/ERK1/2-transduced shift of microglial cell activation toward a pro-inflammatory M1 phenotype, highlighting NOX2 as a potential target for novel neuroprotective therapies in glaucoma management.
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Affiliation(s)
- Xin Shi
- Department of Ophthalmology, Faculty of Medicine, University Hospital of Cologne, University of Cologne, 50937, Cologne, Germany
| | - Panpan Li
- Department of Ophthalmology, Faculty of Medicine, University Hospital of Cologne, University of Cologne, 50937, Cologne, Germany
| | - Marc Herb
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Goldenfelsstr. 19-21, 50935, Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany
| | - Hanhan Liu
- Department of Ophthalmology, Faculty of Medicine, University Hospital of Cologne, University of Cologne, 50937, Cologne, Germany
| | - Maoren Wang
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, P. R. China
| | - Xiaosha Wang
- Department of Ophthalmology, Faculty of Medicine, University Hospital of Cologne, University of Cologne, 50937, Cologne, Germany
| | - Yuan Feng
- Department of Ophthalmology, Faculty of Medicine, University Hospital of Cologne, University of Cologne, 50937, Cologne, Germany
| | - Tim van Beers
- Institut I für Anatomie, Universitätsklinikum Köln (AöR), Cologne, Germany
| | - Ning Xia
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Huige Li
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 55131, Mainz, Germany
| | - Verena Prokosch
- Department of Ophthalmology, Faculty of Medicine, University Hospital of Cologne, University of Cologne, 50937, Cologne, Germany.
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Amadio P, Sandrini L, Zarà M, Barbieri SS, Ieraci A. NADPH-oxidases as potential pharmacological targets for thrombosis and depression comorbidity. Redox Biol 2024; 70:103060. [PMID: 38310682 PMCID: PMC10848036 DOI: 10.1016/j.redox.2024.103060] [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: 12/08/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/06/2024] Open
Abstract
There is a complex interrelationship between the nervous system and the cardiovascular system. Comorbidities of cardiovascular diseases (CVD) with mental disorders, and vice versa, are prevalent. Adults with mental disorders such as anxiety and depression have a higher risk of developing CVD, and people with CVD have an increased risk of being diagnosed with mental disorders. Oxidative stress is one of the many pathways associated with the pathophysiology of brain and cardiovascular disease. Nicotinamide adenine dinucleotide phosphate oxidase (NOX) is one of the major generators of reactive oxygen species (ROS) in mammalian cells, as it is the enzyme that specifically produces superoxide. This review summarizes recent findings on the consequences of NOX activation in thrombosis and depression. It also discusses the therapeutic effects and pharmacological strategies of NOX inhibitors in CVD and brain disorders. A better comprehension of these processes could facilitate the development of new therapeutic approaches for the prevention and treatment of the comorbidity of thrombosis and depression.
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Affiliation(s)
- Patrizia Amadio
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy
| | - Leonardo Sandrini
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy
| | - Marta Zarà
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy
| | - Silvia S Barbieri
- Unit of Brain-Heart Axis: Cellular and Molecular Mechanisms, Centro Cardiologico Monzino IRCCS, 20138, Milan, Italy.
| | - Alessandro Ieraci
- Department of Theoretical and Applied Sciences, eCampus University, 22060, Novedrate (CO), Italy; Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156, Milan, Italy.
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Salvagno M, Sterchele ED, Zaccarelli M, Mrakic-Sposta S, Welsby IJ, Balestra C, Taccone FS. Oxidative Stress and Cerebral Vascular Tone: The Role of Reactive Oxygen and Nitrogen Species. Int J Mol Sci 2024; 25:3007. [PMID: 38474253 DOI: 10.3390/ijms25053007] [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: 01/05/2024] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 03/14/2024] Open
Abstract
The brain's unique characteristics make it exceptionally susceptible to oxidative stress, which arises from an imbalance between reactive oxygen species (ROS) production, reactive nitrogen species (RNS) production, and antioxidant defense mechanisms. This review explores the factors contributing to the brain's vascular tone's vulnerability in the presence of oxidative damage, which can be of clinical interest in critically ill patients or those presenting acute brain injuries. The brain's high metabolic rate and inefficient electron transport chain in mitochondria lead to significant ROS generation. Moreover, non-replicating neuronal cells and low repair capacity increase susceptibility to oxidative insult. ROS can influence cerebral vascular tone and permeability, potentially impacting cerebral autoregulation. Different ROS species, including superoxide and hydrogen peroxide, exhibit vasodilatory or vasoconstrictive effects on cerebral blood vessels. RNS, particularly NO and peroxynitrite, also exert vasoactive effects. This review further investigates the neuroprotective effects of antioxidants, including superoxide dismutase (SOD), vitamin C, vitamin E, and the glutathione redox system. Various studies suggest that these antioxidants could be used as adjunct therapies to protect the cerebral vascular tone under conditions of high oxidative stress. Nevertheless, more extensive research is required to comprehensively grasp the relationship between oxidative stress and cerebrovascular tone, and explore the potential benefits of antioxidants as adjunctive therapies in critical illnesses and acute brain injuries.
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Affiliation(s)
- Michele Salvagno
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), 1000 Brussels, Belgium
| | - Elda Diletta Sterchele
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), 1000 Brussels, Belgium
| | - Mario Zaccarelli
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), 1000 Brussels, Belgium
| | - Simona Mrakic-Sposta
- Institute of Clinical Physiology-National Research Council (CNR-IFC), 20133 Milan, Italy
| | - Ian James Welsby
- Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Costantino Balestra
- Environmental, Occupational, Aging (Integrative) Physiology Laboratory, Haute Ecole Bruxelles-Brabant (HE2B), 1160 Brussels, Belgium
- Anatomical Research and Clinical Studies, Vrije Universiteit Brussels (VUB), 1050 Elsene, Belgium
- DAN Europe Research Division (Roseto-Brussels), 1160 Brussels, Belgium
- Motor Sciences Department, Physical Activity Teaching Unit, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), 1000 Brussels, Belgium
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Herb M. NADPH Oxidase 3: Beyond the Inner Ear. Antioxidants (Basel) 2024; 13:219. [PMID: 38397817 PMCID: PMC10886416 DOI: 10.3390/antiox13020219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Reactive oxygen species (ROS) were formerly known as mere byproducts of metabolism with damaging effects on cellular structures. The discovery and description of NADPH oxidases (Nox) as a whole enzyme family that only produce this harmful group of molecules was surprising. After intensive research, seven Nox isoforms were discovered, described and extensively studied. Among them, the NADPH oxidase 3 is the perhaps most underrated Nox isoform, since it was firstly discovered in the inner ear. This stigma of Nox3 as "being only expressed in the inner ear" was also used by me several times. Therefore, the question arose whether this sentence is still valid or even usable. To this end, this review solely focuses on Nox3 and summarizes its discovery, the structural components, the activating and regulating factors, the expression in cells, tissues and organs, as well as the beneficial and detrimental effects of Nox3-mediated ROS production on body functions. Furthermore, the involvement of Nox3-derived ROS in diseases progression and, accordingly, as a potential target for disease treatment, will be discussed.
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Affiliation(s)
- Marc Herb
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine, University Hospital Cologne, University of Cologne, 50935 Cologne, Germany;
- German Centre for Infection Research, Partner Site Bonn-Cologne, 50931 Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Aging-Associated Diseases (CECAD), 50931 Cologne, Germany
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Haznedaroglu IC, Malkan UY. Lipotoxicity-Related Hematological Disorders in Obesity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1460:575-594. [PMID: 39287865 DOI: 10.1007/978-3-031-63657-8_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
Lipotoxicity can mediate endothelial dysfunction in obesity. Altered endothelial cell phenotype during the pathobiological course of the lipotoxicity may lead to hemostatic abnormalities, which is a hallmark of several hematological disorders. Impaired hemostasis could also be directly related to numerous metabolic diseases such as hypertension, diabetes, and atherosclerosis. On the other hand, the local hematopoietic bone marrow (BM) renin-angiotensin system (RAS) contributes to the development of atherosclerosis via acting on the lipotoxicity processes. Local BM RAS, principally an autocrine/paracrine/intracrine hematological system, is located at the crossroads of cellular regulation, molecular interactions, and lipotoxicity-mediated vascular endothelial dysfunction. The positive regulatory role of plasma LDL on AT1 receptor-mediated hematopoietic stem cell (HSC) differentiation and the production of pro-atherogenic monocytes have been described. LDL-regulated HSC function may explain in part hypercholesterolemia-induced inflammation as well as the anti-inflammatory and anti-atherosclerotic effects of AT1 receptor blockers. The role of local adipose tissue RAS is directly related to the pathogenesis of metabolic derangements in obesity. There may be a crosstalk between local BM RAS and local adipose tissue RAS at the genomics and transcriptomics levels. This chapter aims to review hematological alterations propagating the pathological influences of lipotoxicity on the vascular endothelium.
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Affiliation(s)
| | - Umit Yavuz Malkan
- Hacettepe University School of Medicine, Department of Hematology, Ankara, Turkey
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Wei J, Shu Y, Wang Y, Liu H. Bibliometric and visualized analysis of diabetic macular edema. Indian J Ophthalmol 2024; 72:S66-S74. [PMID: 38131545 PMCID: PMC10833150 DOI: 10.4103/ijo.ijo_399_23] [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: 02/08/2023] [Revised: 04/10/2023] [Accepted: 07/31/2023] [Indexed: 12/23/2023] Open
Abstract
PURPOSE Our aim was to identify recent research trends on diabetic macular edema (DME) and focus on publications from different countries, institutions, and authors. METHODS We retrieved and analyzed data from January 1, 2003 to December 31, 2022 on the DME research field from the Web of Science Core Collection (WoSCC) database. Microsoft Excel and VOSviewer were applied to perform visualization analysis and evaluate the trends. RESULTS A total of 4482 publications were identified, and the annual global publications increased steadily, from 36 to 390, during this period. The United States (1339 publications, 71,754 citations), Johns Hopkins University (176 publications, 17,015 citations), and Bressler NM (76 publications, 9621 citations) were the most influential and productive countries, institutions, and authors, respectively. The top 100 keywords were classified into five clusters: (1) therapy and adverse effects of DME; (2) clinical biomarkers of DME; (3) mechanistic research on DME; (4) improving bioavailability and efficacy; and (5) early diagnosis of diabetic complications. "Diabetic macular edema," "retinopathy," "ranibizumab," and "optical coherence tomography angiography" were the most frequent keywords. Regarding the average appearing years (AAYs) of the keywords, "deep learning" (AAY:2020.83), "optical coherence tomography angiography" (AAY:2019.59), "intravitreal Aflibercept" (AAY:2019.29), and "dexamethasone implant" (AAY:2019.20) were recognized as the hotspots of the DME research area in the short run. CONCLUSION In the past two decades, the United States was in master status in DME research. Although intravitreal drug injection has been the mainstream therapy for a long time, the effectiveness of different drugs, such as dexamethasone, new solutions for drug delivery, such as intravitreal implantation, and more accurate tools for the classification and follow-up of DME patients, such as deep learning systems, are still research hotspots.
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Affiliation(s)
- Jin Wei
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai, China
| | - Yiyang Shu
- Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yimin Wang
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai, China
| | - Haiyun Liu
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai, China
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Stadler K, Ilatovskaya DV. Renal Epithelial Mitochondria: Implications for Hypertensive Kidney Disease. Compr Physiol 2023; 14:5225-5242. [PMID: 38158371 PMCID: PMC11194858 DOI: 10.1002/cphy.c220033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
According to the Centers for Disease Control and Prevention, 1 in 2 U.S. adults have hypertension, and more than 1 in 7 chronic kidney disease. In fact, hypertension is the second leading cause of kidney failure in the United States; it is a complex disease characterized by, leading to, and caused by renal dysfunction. It is well-established that hypertensive renal damage is accompanied by mitochondrial damage and oxidative stress, which are differentially regulated and manifested along the nephron due to the diverse structure and functions of renal cells. This article provides a summary of the relevant knowledge of mitochondrial bioenergetics and metabolism, focuses on renal mitochondrial function, and discusses the evidence that has been accumulated regarding the role of epithelial mitochondrial bioenergetics in the development of renal tissue dysfunction in hypertension. © 2024 American Physiological Society. Compr Physiol 14:5225-5242, 2024.
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Affiliation(s)
- Krisztian Stadler
- Oxidative Stress and Disease Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
| | - Daria V. Ilatovskaya
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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Hussain A, Ashique S, Afzal O, Altamimi MA, Malik A, Kumar S, Garg A, Sharma N, Farid A, Khan T, Altamimi ASA. A correlation between oxidative stress and diabetic retinopathy: An updated review. Exp Eye Res 2023; 236:109650. [PMID: 37734426 DOI: 10.1016/j.exer.2023.109650] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/09/2023] [Accepted: 09/12/2023] [Indexed: 09/23/2023]
Abstract
Oxidative stress (OS) is a cytopathic outcome of excessively generated reactive oxygen species (ROS), down regulated antioxidant defense signaling pathways, and the imbalance between the produced radicals and their clearance. It plays a role in the genesis of several illnesses, especially hyperglycemia and its effects. Diabetic retinal illness, a micro vascular side effect of the condition, is the prime reason of diabetic related blindness. The OS (directly or indirectly) is associated with diabetic retinopathy (DR) and related consequences. The OS is responsible to induce and interfere the metabolic signaling pathways to enhance influx of the polyol cascades and hexosamine pathways, stimulate Protein Kinase-C (PKC) variants, and accumulate advanced glycation end products (AGEs). Additionally, the inequity between the scavenging and generation of ROS is caused by the epigenetic alteration caused by hyperglycemia that suppresses the antioxidant defense system. Induced by an excessive buildup of ROS, retinal changes in structure and function include mitochondrial damage, cellular death, inflammation, and lipid peroxidation. Therefore, it is crucial to comprehend and clarify the mechanisms connected to oxidative stress that underlie the development of DR.
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Affiliation(s)
- Afzal Hussain
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Sumel Ashique
- Department of Pharmaceutics, Pandaveswar School of Pharmacy, Pandaveswar, West Bengal, 713346, India
| | - Obaid Afzal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj, 11942, Saudi Arabia
| | - Mohammad A Altamimi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Abdul Malik
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Shubneesh Kumar
- Department of Pharmaceutics, Bharat Institute of Technology, School of Pharmacy, Meerut, Uttar Pradesh, 250103, India
| | - Ashish Garg
- Department of Pharmaceutics, Guru Ramdas Khalsa Institute of Science and Technology (Pharmacy), Jabalpur, Madhya Pradesh, India
| | - Nidhi Sharma
- Graduate Assistant, Department of Biomedical Engineering University of Connecticut, UCONN, Storrs Campus, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Arshad Farid
- Gomal Center of Biochemistry and Biotechnology, Gomal University, D.I. Khan, KPK, Pakistan
| | - Tasneem Khan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Abdulmalik S A Altamimi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj, 11942, Saudi Arabia
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Man AWC, Zhou Y, Xia N, Li H. Perivascular Adipose Tissue Oxidative Stress in Obesity. Antioxidants (Basel) 2023; 12:1595. [PMID: 37627590 PMCID: PMC10451984 DOI: 10.3390/antiox12081595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Perivascular adipose tissue (PVAT) adheres to most systemic blood vessels in the body. Healthy PVAT exerts anticontractile effects on blood vessels and further protects against cardiovascular and metabolic diseases. Healthy PVAT regulates vascular homeostasis via secreting an array of adipokine, hormones, and growth factors. Normally, homeostatic reactive oxygen species (ROS) in PVAT act as secondary messengers in various signalling pathways and contribute to vascular tone regulation. Excessive ROS are eliminated by the antioxidant defence system in PVAT. Oxidative stress occurs when the production of ROS exceeds the endogenous antioxidant defence, leading to a redox imbalance. Oxidative stress is a pivotal pathophysiological process in cardiovascular and metabolic complications. In obesity, PVAT becomes dysfunctional and exerts detrimental effects on the blood vessels. Therefore, redox balance in PVAT emerges as a potential pathophysiological mechanism underlying obesity-induced cardiovascular diseases. In this review, we summarise new findings describing different ROS, the major sources of ROS and antioxidant defence in PVAT, as well as potential pharmacological intervention of PVAT oxidative stress in obesity.
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Affiliation(s)
| | | | | | - Huige Li
- Department of Pharmacology, Johannes Gutenberg University Medical Center, 55131 Mainz, Germany; (A.W.C.M.); (Y.Z.); (N.X.)
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12
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Shen Y, Dong Z, Fan F, Li K, Zhu S, Dai R, Huang J, Xie N, He L, Gong Z, Yang X, Tan J, Liu L, Yu F, Tang Y, You Z, Xi J, Wang Y, Kong W, Zhang Y, Fu Y. Targeting cytokine-like protein FAM3D lowers blood pressure in hypertension. Cell Rep Med 2023:101072. [PMID: 37301198 DOI: 10.1016/j.xcrm.2023.101072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 03/08/2023] [Accepted: 05/12/2023] [Indexed: 06/12/2023]
Abstract
Current antihypertensive options still incompletely control blood pressure, suggesting the existence of uncovered pathogenic mechanisms. Here, whether cytokine-like protein family with sequence similarity 3, member D (FAM3D) is involved in hypertension etiology is evaluated. A case-control study exhibits that FAM3D is elevated in patients with hypertension, with a positive association with odds of hypertension. FAM3D deficiency significantly ameliorates angiotensin II (AngII)-induced hypertension in mice. Mechanistically, FAM3D directly causes endothelial nitric oxide synthase (eNOS) uncoupling and impairs endothelium-dependent vasorelaxation, whereas 2,4-diamino-6-hydroxypyrimidine to induce eNOS uncoupling abolishes the protective effect of FAM3D deficiency against AngII-induced hypertension. Furthermore, antagonism of formyl peptide receptor 1 (FPR1) and FPR2 or the suppression of oxidative stress blunts FAM3D-induced eNOS uncoupling. Translationally, targeting endothelial FAM3D by adeno-associated virus or intraperitoneal injection of FAM3D-neutralizing antibodies markedly ameliorates AngII- or deoxycorticosterone acetate (DOCA)-salt-induced hypertension. Conclusively, FAM3D causes eNOS uncoupling through FPR1- and FPR2-mediated oxidative stress, thereby exacerbating the development of hypertension. FAM3D may be a potential therapeutic target for hypertension.
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Affiliation(s)
- Yicong Shen
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Zhigang Dong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Fangfang Fan
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Department of Cardiology, Institute of Cardiovascular Disease, Peking University First Hospital, Beijing 100034, China
| | - Kaiyin Li
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Department of Cardiology, Institute of Cardiovascular Disease, Peking University First Hospital, Beijing 100034, China
| | - Shirong Zhu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Rongbo Dai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Jiaqi Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Nan Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, Guangdong 518057, China
| | - Li He
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510120, China
| | - Ze Gong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Xueyuan Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Jiaai Tan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Limei Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Fang Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China
| | - Yida Tang
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Zhen You
- Department of Biliary Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Jianzhong Xi
- Department of Biomedicine, College of Engineering, Peking University, Beijing 100871, China
| | - Ying Wang
- Department of Immunology, School of Basic Medical Sciences, and Key Laboratory of Medical Immunology of Ministry of Health, Peking University, Beijing 100191, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China.
| | - Yan Zhang
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Department of Cardiology, Institute of Cardiovascular Disease, Peking University First Hospital, Beijing 100034, China.
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China.
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13
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Coppin E, Zhang X, Ohayon L, Johny E, Dasari A, Zheng KH, Stiekema L, Cifuentes-Pagano E, Pagano PJ, Chaparala S, Stroes ES, Dutta P. Peripheral Ischemia Imprints Epigenetic Changes in Hematopoietic Stem Cells to Propagate Inflammation and Atherosclerosis. Arterioscler Thromb Vasc Biol 2023; 43:889-906. [PMID: 36891902 PMCID: PMC10213134 DOI: 10.1161/atvbaha.123.318956] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 02/20/2023] [Indexed: 03/10/2023]
Abstract
BACKGROUND Peripheral ischemia caused by peripheral artery disease is associated with systemic inflammation, which may aggravate underlying comorbidities such as atherosclerosis and heart failure. However, the mechanisms of increased inflammation and inflammatory cell production in patients with peripheral artery disease remain poorly understood. METHODS We used peripheral blood collected from patients with peripheral artery disease and performed hind limb ischemia (HI) in Apoe-/- mice fed a Western diet and C57BL/6J mice with a standard laboratory diet. Bulk and single-cell RNA sequencing analysis, whole-mount microscopy, and flow cytometry were performed to analyze hematopoietic stem and progenitor cell (HSPC) proliferation, differentiation, and relocation. RESULTS We observed augmented numbers of leukocytes in the blood of patients with peripheral artery disease and Apoe-/- mice with HI. RNA sequencing and whole-mount imaging of the bone marrow revealed HSPC migration into the vascular niche from the osteoblastic niche and their exaggerated proliferation and differentiation. Single-cell RNA sequencing demonstrated alterations in the genes responsible for inflammation, myeloid cell mobilization, and HSPC differentiation after HI. Heightened inflammation in Apoe-/- mice after HI aggravated atherosclerosis. Surprisingly, bone marrow HSPCs expressed higher amounts of the receptors for IL (interleukin)-1 and IL-3 after HI. Concomitantly, the promoters of Il1r1 and Il3rb had augmented H3K4me3 and H3K27ac marks after HI. Genetic and pharmacological inhibition of these receptors resulted in suppressed HSPC proliferation, reduced leukocyte production, and ameliorated atherosclerosis. CONCLUSIONS Our findings demonstrate increased inflammation, HSPC abundance in the vascular niches of the bone marrow, and elevated IL-3Rb and IL-1R1 (IL-1 receptor 1) expression in HSPC following HI. Furthermore, the IL-3Rb and IL-1R1 signaling plays a pivotal role in HSPC proliferation, leukocyte abundance, and atherosclerosis aggravation after HI.
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Affiliation(s)
- Emilie Coppin
- Regeneration in Hematopoiesis, Institute for Immunology, TU Dresden, Dresden, Germany
- Immunology of Aging, Leibniz Institute on Aging – Fritz Lipmann Institute, Jena, Germany
| | - Xinyi Zhang
- Department of Cardiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Lee Ohayon
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Ebin Johny
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Ankush Dasari
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Kang H. Zheng
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Lotte Stiekema
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Eugenia Cifuentes-Pagano
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Patrick J. Pagano
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Srilakshmi Chaparala
- Health Sciences Library System, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Erik S. Stroes
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Partha Dutta
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Division of Cardiology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Pittsburgh VA Medical Center-University Drive, University Drive C, Pittsburgh, PA, 15213
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14
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Piagette JT, Pinheiro Júnior JEG, Kanaan SHH, Herrera CT, Bastilhos LO, Peçanha FM, Vassallo DV, Miguel-Castro M, Wiggers GA. Pretreatment with egg white hydrolysate protects resistance arteries from damage induced after treatment with accidental cadmium exposure values. J Funct Foods 2023. [DOI: 10.1016/j.jff.2023.105529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
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15
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Zhang X, Yu S, Li X, Wen X, Liu S, Zu R, Ren H, Li T, Yang C, Luo H. Research progress on the interaction between oxidative stress and platelets: Another avenue for cancer? Pharmacol Res 2023; 191:106777. [PMID: 37080257 DOI: 10.1016/j.phrs.2023.106777] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 04/06/2023] [Accepted: 04/18/2023] [Indexed: 04/22/2023]
Abstract
Oxidative stress (OS) is a chemical imbalance between an oxidant and an antioxidant, causing damage to redox signaling and control or causing molecular damage. Unbalanced oxidative metabolism can produce excessive reactive oxygen species (ROS). These excess ROS can cause drastic changes in platelet metabolism and further affect platelet function. It will also lead to an increase in platelet procoagulant phenotype and cell apoptosis, which will increase the risk of thrombosis. The creation of ROS and subsequent platelet activation, adhesion, and recruitment are then further encouraged in an auto-amplifying loop by ROS produced from platelets. Meanwhile, cancer cells produce a higher concentration of ROS due to their fast metabolism and high proliferation rate. However, excessive ROS can result in damage to and modification of cellular macromolecules. The formation of cancer and its progression is strongly associated with oxidative stress and the resulting oxidative damage. In addition, platelets are an important part of the tumor microenvironment, and there is a significant cross-communication between platelets and cancer cells. Cancer cells alter the activation status of platelets, their RNA spectrum, proteome, and other properties. The "cloaking" of cancer cells by platelets providing physical protection,avoiding destruction from shear stress and the attack of immune cells, promoting tumor cell invasion.We explored the vicious circle interaction between ROS, platelets, and cancer in this review, and we believe that ROS can play a stimulative role in tumor growth and metastasis through platelets.
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Affiliation(s)
- Xingmei Zhang
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China; College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Sisi Yu
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China
| | - Xiaobo Li
- Molecular Diagnostic Laboratory of Department of Microbiology and Immunology, 3201 Hospital Affiliated to Medical College of Xi'an Jiaotong University, Hanzhong 723099, China
| | - Xiaoxia Wen
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Shan Liu
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Ruiling Zu
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China
| | - Hanxiao Ren
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China.
| | - Chaoguo Yang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China.
| | - Huaichao Luo
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China.
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16
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The Mechanism of Hyperglycemia-Induced Renal Cell Injury in Diabetic Nephropathy Disease: An Update. Life (Basel) 2023; 13:life13020539. [PMID: 36836895 PMCID: PMC9967500 DOI: 10.3390/life13020539] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/12/2023] [Accepted: 02/14/2023] [Indexed: 02/17/2023] Open
Abstract
Diabetic Nephropathy (DN) is a serious complication of type I and II diabetes. It develops from the initial microproteinuria to end-stage renal failure. The main initiator for DN is chronic hyperglycemia. Hyperglycemia (HG) can stimulate the resident and non-resident renal cells to produce humoral mediators and cytokines that can lead to functional and phenotypic changes in renal cells and tissues, interference with cell growth, interacting proteins, advanced glycation end products (AGEs), etc., ultimately resulting in glomerular and tubular damage and the onset of kidney disease. Therefore, poor blood glucose control is a particularly important risk factor for the development of DN. In this paper, the types and mechanisms of DN cell damage are classified and summarized by reviewing the related literature concerning the effect of hyperglycemia on the development of DN. At the cellular level, we summarize the mechanisms and effects of renal damage by hyperglycemia. This is expected to provide therapeutic ideas and inspiration for further studies on the treatment of patients with DN.
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17
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Invernizzi A, Chhablani J, Viola F, Gabrielle PH, Zarranz-Ventura J, Staurenghi G. Diabetic retinopathy in the pediatric population: Pathophysiology, screening, current and future treatments. Pharmacol Res 2023; 188:106670. [PMID: 36681366 DOI: 10.1016/j.phrs.2023.106670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023]
Abstract
Diabetic retinopathy (DR) is a sight threatening complication of diabetes mellitus (DM). The incidence of DR in the pediatric population has increased in the last two decades and it is expected to further rise in the future, following the increase in DM prevalence and obesity in youth. As early stages of the retinal disease are asymptomatic, screening programs are of extreme importance to guarantee a prompt diagnosis and avoid progression to more advanced, sight threatening stages. The management of DR comprises a wide range of actions starting from glycemic control, continuing with systemic and local medical treatments, up to para-surgical and surgical approaches to deal with the more aggressive complications. In this review we will describe the pathophysiology of DR trying to understand all the possible targets for currently available or future treatments. We will briefly consider the impact of screening techniques, screening strategies and their social and economic impact. Finally a large part of the review will be dedicated to medical and surgical treatments for DR including both currently available and under development therapies. Most of the available data in the literature on DR are focused on the adult population. The aim of our work is to provide clinicians and researchers with a comprehensive overview of the state of the art regarding DR in the pediatric population, considering the increasing numbers of this diseases in youth and the inevitable consequences that such a chronic disease could have if poorly managed in children.
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Affiliation(s)
- Alessandro Invernizzi
- Eye Clinic, Department of Biomedical and Clinical Science "Luigi Sacco", Luigi Sacco Hospital, University of Milan, Milan, Italy; The University of Sydney, Save Sight Institute, Discipline of Ophthalmology, Sydney Medical School, Sydney, New South Wales, Australia.
| | - Jay Chhablani
- UPMC Eye Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Francesco Viola
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Pierre Henry Gabrielle
- Department of Ophthalmology, University Hospital, 14 rue Paul Gaffarel, 21079 Dijon, France
| | - Javier Zarranz-Ventura
- Institut Clínic of Ophthalmology (ICOF), Hospital Clínic, Barcelona, Spain; August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Giovanni Staurenghi
- Eye Clinic, Department of Biomedical and Clinical Science "Luigi Sacco", Luigi Sacco Hospital, University of Milan, Milan, Italy
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18
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Kwon OS, Noh SG, Park SH, Andtbacka RHI, Hyngstrom JR, Richardson RS. Ageing and endothelium-mediated vascular dysfunction: the role of the NADPH oxidases. J Physiol 2023; 601:451-467. [PMID: 36416565 PMCID: PMC9898184 DOI: 10.1113/jp283208] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 11/09/2022] [Indexed: 11/25/2022] Open
Abstract
The present study aimed to determine the isoform-specific role of the NADPH oxidases (NOX) in the endothelium-mediated vascular dysfunction associated with ageing. Endothelium-dependent [intraluminal flow- and acetylcholine (ACh)-induced] vasodilatation in human skeletal muscle feed arteries (SMFAs) of young (24 ± 1 years, n = 16), middle aged (45 ± 1 years, n = 18) and old (76 ± 2 years, n = 21) subjects was assessed in vitro with and without the inhibition of NOX1 (ML090), NOX2 (gp91) and NOX4 (plumbagin). To identify the role of nitric oxide (NO) bioavailability in these responses, NO synthase blockade (l-NG -monomethyl arginine citrate) was utilized. SMFA NOX1, NOX2 and NOX4 protein expression was determined by western blotting. Age related endothelium-dependent vasodilatory dysfunction was evident in response to flow (young: 69 ± 3; middle aged: 51 ± 3; old: 27 ± 3%, P < 0.05) and ACh (young: 89 ± 2; middle aged: 72 ± 3; old: 45 ± 4%, P < 0.05). NOX1 inhibition had no effect on SMFA vasodilatation, whereas NOX2 inhibition restored flow- and ACh-induced vasodilatation in the middle aged and the old SMFAs (middle aged + gp91: 69 ± 3; 86 ± 3, old + gp91: 65 ± 5; 83 ± 2%, P < 0.05) and NOX4 inhibition tended to restore these vasodilatory responses in these two groups, but neither achieved statistical significance (P ≈ 0.06). l-NG -monomethyl arginine citrate negated the restorative effects of NOX2 and NOX4 blockade. Only NOX2 and NOX4 protein expression was significantly greater in the two older groups and inversely related to vascular function (r = 0.48 to 0.93, P < 0.05). NOX2 and, to a lesser extent, NOX4 appear to play an important, probably NO-mediated, role in age-related endothelial dysfunction. KEY POINTS: The present study aimed to determine the isoform-specific role of the NADPH oxidases (NOX) in the endothelium-mediated vascular dysfunction associated with ageing. Age related endothelium-dependent vasodilatory dysfunction was evident in skeletal muscle feed arteries in response to both flow and acetylcholine. NOX2 inhibition (gp91) restored endothelium-dependent vasodilatation in the middle aged and the old skeletal muscle feed arteries, and NOX4 inhibition (plumbagin) tended to restore these vasodilatory responses in these two groups. Nitric oxide synthase inhibition negated the restorative effects of NOX2 and NOX4 blockade. NOX2 and NOX4 protein expression was significantly greater in the two older groups and inversely related to vascular function. NOX2 and, to a lesser extent, NOX4 appear to play an important, probably nitric oxide-mediated, role in age-related endothelial dysfunction and could be important therapeutic targets to maintain vascular health with ageing.
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Affiliation(s)
- Oh Sung Kwon
- Department of Kinesiology, University of Connecticut, Storrs, CT, USA
- Department of Orthopaedic Surgery & Center on Aging, University of Connecticut School of Medicine, Farmington, CT, USA
- Department of Internal Medicine, Division of Geriatrics, University of Utah, Salt Lake City, UT, USA
| | - Sung Gi Noh
- Department of Kinesiology, University of Connecticut, Storrs, CT, USA
| | - Soung Hun Park
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT, USA
| | - Robert H. I. Andtbacka
- Formerly at Department of Surgery, Huntsman Cancer Hospital, University of Utah, Salt Lake City, UT, US
| | - John R. Hyngstrom
- Formerly at Department of Surgery, Huntsman Cancer Hospital, University of Utah, Salt Lake City, UT, USA
| | - Russell S. Richardson
- Department of Internal Medicine, Division of Geriatrics, University of Utah, Salt Lake City, UT, USA
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT, USA
- Geriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA
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19
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Januzzi JL, Butler J, Del Prato S, Ezekowitz JA, Ibrahim NE, Lam CSP, Lewis GD, Marwick TH, Rosenstock J, Tang WHW, Zannad F, Lawson F, Perfetti R, Urbinati A. Rationale and design of the Aldose Reductase Inhibition for Stabilization of Exercise Capacity in Heart Failure Trial (ARISE-HF) in patients with high-risk diabetic cardiomyopathy. Am Heart J 2023; 256:25-36. [PMID: 36372245 DOI: 10.1016/j.ahj.2022.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/28/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Diabetic cardiomyopathy (DbCM) is a specific form of heart muscle disease that may result in substantial morbidity and mortality in individuals with type 2 diabetes mellitus (T2DM). Hyperactivation of the polyol pathway is one of the primary mechanisms in the pathogenesis of diabetic complications, including development of DbCM. There is an unmet need for therapies targeting the underlying metabolic abnormalities that drive this form of Stage B heart failure (HF). METHODS Aldose reductase (AR) catalyzes the first and rate-limiting step in the polyol pathway, and AR inhibition has been shown to reduce diabetic complications, including DbCM in animal models and in patients with DbCM. Previous AR inhibitors (ARIs) were limited by poor specificity resulting in unacceptable tolerability and safety profile. AT-001 is a novel investigational highly specific ARI with higher binding affinity and greater selectivity than previously studied ARIs. ARISE-HF (NCT04083339) is an ongoing Phase 3 randomized, placebo-controlled, double blind, global clinical study to investigate the efficacy of AT-001 (1000 mg twice daily [BID] and 1500 mg BID) in 675 T2DM patients with DbCM at high risk of progression to overt HF. ARISE-HF assesses the ability of AT-001 to improve or prevent decline in exercise capacity as measured by functional capacity (changes in peak oxygen uptake [peak VO2]) over 15 (and possibly 27) months of treatment. Additional endpoints include percentage of patients progressing to overt HF, health status metrics, echocardiographic measurements, and changes in cardiacbiomarkers. RESULTS The ARISE-HF Trial is fully enrolled. CONCLUSIONS This report describes the rationale and study design of ARISE-HF.
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Affiliation(s)
- James L Januzzi
- Cardiology Division, Massachusetts General Hospital, Baim Institute for Clinical Research and Harvard Medical School, Boston, MA.
| | - Javed Butler
- University of Mississippi Medical Center, Jackson, MS; Baylor Scott and White Institute, Dallas, TX
| | - Stefano Del Prato
- Department of Clinical & Experimental Medicine, Section of Diabetes, University of Pisa, Pisa, Italy
| | | | | | - Carolyn S P Lam
- National Heart Centre Singapore and Duke-National University of Singapore, Singapore, Singapore
| | - Gregory D Lewis
- Cardiology Division, Massachusetts General Hospital, Boston, MA
| | | | | | - W H Wilson Tang
- Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH
| | - Faiez Zannad
- Université de Lorraine, Inserm CIC and CHRU, Nancy, France
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20
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Prasad K. Involvement of AGE and Its Receptors in the Pathogenesis of Hypertension in Elderly People and Its Treatment. Int J Angiol 2022; 31:213-221. [PMID: 36588874 PMCID: PMC9803554 DOI: 10.1055/s-0042-1756175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Both systolic and diastolic blood pressures increase with age up to 50 to 60 years of age. After 60 years of age systolic pressure rises to 84 years of age but diastolic pressure remains stable or even decreases. In the oldest age group (85-99 years), the systolic blood pressure (SBP) is high and diastolic pressure (DBP) is the lowest. Seventy percent of people older than 65 years are hypertensive. This paper deals with the role of advanced glycation end products (AGE) and its cell receptor (RAGE) and soluble receptor (sRAGE) in the development of hypertension in the elderly population. Plasma/serum levels of AGE are higher in older people as compared with younger people. Serum levels of AGE are positively correlated with age, arterial stiffness, and hypertension. Low serum levels of sRAGE are associated with arterial stiffness and hypertension. Levels of sRAGE are negatively correlated with age and blood pressure. Levels of sRAGE are lower in patients with arterial stiffness and hypertension than patients with high levels of sRAGE. AGE could induce hypertension through numerous mechanisms including, cross-linking with collagen, reduction of nitric oxide, increased expression of endothelin-1, and transforming growth factor-β (TGF-β). Interaction of AGE with RAGE could produce hypertension through the generation of reactive oxygen species, increased sympathetic activity, activation of nuclear factor-kB, and increased expression of cytokines, cell adhesion molecules, and TGF- β. In conclusion, the AGE-RAGE axis could be involved in hypertension in elderly people. Treatment for hypertension in elderly people should be targeted at reduction of AGE levels in the body, prevention of AGE formation, degradation of AGE in vivo, downregulation of RAGE expression, blockade of AGE-RAGE interaction, upregulation of sRAGE expression, and use of antioxidants.
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Affiliation(s)
- Kailash Prasad
- Department of Physiology (APP), College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
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21
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Miao R, Wang L, Chen Z, Ge S, Li L, Zhang K, Chen Y, Guo W, Duan X, Zhu M, Zhao G, Lin F. Advances in the study of nicotinamide adenine dinucleotide phosphate oxidase in myocardial remodeling. Front Cardiovasc Med 2022; 9:1000578. [PMID: 36407440 PMCID: PMC9669076 DOI: 10.3389/fcvm.2022.1000578] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/18/2022] [Indexed: 07/30/2023] Open
Abstract
Myocardial remodeling is a key pathophysiological basis of heart failure, which seriously threatens human health and causes a severe economic burden worldwide. During chronic stress, the heart undergoes myocardial remodeling, mainly manifested by cardiomyocyte hypertrophy, apoptosis, interstitial fibrosis, chamber enlargement, and cardiac dysfunction. The NADPH oxidase family (NOXs) are multisubunit transmembrane enzyme complexes involved in the generation of redox signals. Studies have shown that NOXs are highly expressed in the heart and are involved in the pathological development process of myocardial remodeling, which influences the development of heart failure. This review summarizes the progress of research on the pathophysiological processes related to the regulation of myocardial remodeling by NOXs, suggesting that NOXs-dependent regulatory mechanisms of myocardial remodeling are promising new therapeutic targets for the treatment of heart failure.
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Affiliation(s)
- Runran Miao
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Libo Wang
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
- College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
| | - Zhigang Chen
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
- Cardiovascular Repair Engineering Technology Research Center, The First Affifiliated Hospital of Xinxiang Medical University, Xinxiang, China
- International Joint Laboratory of Cardiovascular Injury and Repair, The First Affifiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Shiqi Ge
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Li Li
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Kai Zhang
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Yingen Chen
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Wenjing Guo
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Xulei Duan
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Mingyang Zhu
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
| | - Guoan Zhao
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
- Cardiovascular Repair Engineering Technology Research Center, The First Affifiliated Hospital of Xinxiang Medical University, Xinxiang, China
- International Joint Laboratory of Cardiovascular Injury and Repair, The First Affifiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Fei Lin
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Heart Center of Xinxiang Medical University, Xinxiang, China
- Cardiovascular Repair Engineering Technology Research Center, The First Affifiliated Hospital of Xinxiang Medical University, Xinxiang, China
- International Joint Laboratory of Cardiovascular Injury and Repair, The First Affifiliated Hospital of Xinxiang Medical University, Xinxiang, China
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Chaudhary A, Patel M, Singh S. Current Debates on Etiopathogenesis and Treatment Strategies for Vitiligo. Curr Drug Targets 2022; 23:1219-1238. [PMID: 35388753 DOI: 10.2174/1389450123666220406125645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 12/12/2021] [Accepted: 12/31/2021] [Indexed: 01/25/2023]
Abstract
Vitiligo is an acquired, chronic, and progressive depigmentation or hypopigmentation characterized by the destruction of melanocytes and the occurrence of white patches or macules in the skin, mucosal surface of eyes, and ears. Melanocytes are the melanin pigment-producing cells of the skin which are destroyed in pathological conditions called vitiligo. Approximately 0.5 - 2.0% of the population is suffering from vitiligo, and a higher prevalence rate of up to 8.8% has been reported in India. It is caused by various pathogenic factors like genetic predisposition, hyperimmune activation, increased oxidative stress, and alteration in neuropeptides level. Genetic research has revealed a multi- genetic inheritance that exhibits an overlap with other autoimmune disorders. However, melanocytes specific genes are also affected (such as DDR1, XBP1, NLRP1, PTPN22, COMT, FOXP3, ACE, APE, GSTP1, TLR, SOD, and CTLA-4). A number of therapeutic options are employed for the treatment of vitiligo. The topical corticosteroids and immunomodulators are currently in practice for the management of vitiligo. Phototherapies alone and in combinations with other approaches are used in those patients who do not respond to the topical treatment. The main focus of this review is on the etiopathological factors, pharmacological management (phototherapy, topical, systemic, and surgical therapy), and herbal drugs used to treat vitiligo.
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Affiliation(s)
- Ankit Chaudhary
- Department of Pharmacology, Neuropharmacology Division, ISF College of Pharmacy, Moga, Punjab 142001, India
| | - Mayank Patel
- Department of Pharmacology, Neuropharmacology Division, ISF College of Pharmacy, Moga, Punjab 142001, India
| | - Shamsher Singh
- Department of Pharmacology, Neuropharmacology Division, ISF College of Pharmacy, Moga, Punjab 142001, India
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23
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Nebbioso M, Franzone F, Lambiase A, Bonfiglio V, Limoli PG, Artico M, Taurone S, Vingolo EM, Greco A, Polimeni A. Oxidative Stress Implication in Retinal Diseases-A Review. Antioxidants (Basel) 2022; 11:antiox11091790. [PMID: 36139862 PMCID: PMC9495599 DOI: 10.3390/antiox11091790] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress (OS) refers to an imbalance between free radicals (FRs), namely highly reactive molecules normally generated in our body by several pathways, and intrinsic antioxidant capacity. When FR levels overwhelm intrinsic antioxidant defenses, OS occurs, inducing a series of downstream chemical reactions. Both reactive oxygen species (ROS) and reactive nitrogen species (RNS) are produced by numerous chemical reactions that take place in tissues and organs and are then eliminated by antioxidant molecules. In particular, the scientific literature focuses more on ROS participation in the pathogenesis of diseases than on the role played by RNS. By its very nature, the eye is highly exposed to ultraviolet radiation (UVR), which is directly responsible for increased OS. In this review, we aimed to focus on the retinal damage caused by ROS/RNS and the related retinal pathologies. A deeper understanding of the role of oxidative and nitrosative stress in retinal damage is needed in order to develop targeted therapeutic interventions to slow these pathologies.
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Affiliation(s)
- Marcella Nebbioso
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
- Correspondence:
| | | | - Alessandro Lambiase
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | - Vincenza Bonfiglio
- Department of Experimental Biomedicine and Clinical Neuroscience, Ophthalmology Section, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy
| | | | - Marco Artico
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | | | - Enzo Maria Vingolo
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | - Antonio Greco
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | - Antonella Polimeni
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome 5, p.le A. Moro 5, 00185 Rome, Italy
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Role of Oxidative Stress in the Pathogenesis of Atherothrombotic Diseases. Antioxidants (Basel) 2022; 11:antiox11071408. [PMID: 35883899 PMCID: PMC9312358 DOI: 10.3390/antiox11071408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/12/2022] [Accepted: 07/19/2022] [Indexed: 12/04/2022] Open
Abstract
Oxidative stress is generated by the imbalance between reactive oxygen species (ROS) formation and antioxidant scavenger system’s activity. Increased ROS, such as superoxide anion, hydrogen peroxide, hydroxyl radical and peroxynitrite, likely contribute to the development and complications of atherosclerotic cardiovascular diseases (ASCVD). In genetically modified mouse models of atherosclerosis, the overexpression of ROS-generating enzymes and uncontrolled ROS formation appear to be associated with accelerated atherosclerosis. Conversely, the overexpression of ROS scavenger systems reduces or stabilizes atherosclerotic lesions, depending on the genetic background of the mouse model. In humans, higher levels of circulating biomarkers derived from the oxidation of lipids (8-epi-prostaglandin F2α, and malondialdehyde), as well as proteins (oxidized low-density lipoprotein, nitrotyrosine, protein carbonyls, advanced glycation end-products), are increased in conditions of high cardiovascular risk or overt ASCVD, and some oxidation biomarkers have been reported as independent predictors of ASCVD in large observational cohorts. In animal models, antioxidant supplementation with melatonin, resveratrol, Vitamin E, stevioside, acacetin and n-polyunsaturated fatty acids reduced ROS and attenuated atherosclerotic lesions. However, in humans, evidence from large, placebo-controlled, randomized trials or prospective studies failed to show any athero-protective effect of antioxidant supplementation with different compounds in different CV settings. However, the chronic consumption of diets known to be rich in antioxidant compounds (e.g., Mediterranean and high-fish diet), has shown to reduce ASCVD over decades. Future studies are needed to fill the gap between the data and targets derived from studies in animals and their pathogenetic and therapeutic significance in human ASCVD.
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25
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Lansdell TA, Chambers LC, Dorrance AM. Endothelial Cells and the Cerebral Circulation. Compr Physiol 2022; 12:3449-3508. [PMID: 35766836 DOI: 10.1002/cphy.c210015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Endothelial cells form the innermost layer of all blood vessels and are the only vascular component that remains throughout all vascular segments. The cerebral vasculature has several unique properties not found in the peripheral circulation; this requires that the cerebral endothelium be considered as a unique entity. Cerebral endothelial cells perform several functions vital for brain health. The cerebral vasculature is responsible for protecting the brain from external threats carried in the blood. The endothelial cells are central to this requirement as they form the basis of the blood-brain barrier. The endothelium also regulates fibrinolysis, thrombosis, platelet activation, vascular permeability, metabolism, catabolism, inflammation, and white cell trafficking. Endothelial cells regulate the changes in vascular structure caused by angiogenesis and artery remodeling. Further, the endothelium contributes to vascular tone, allowing proper perfusion of the brain which has high energy demands and no energy stores. In this article, we discuss the basic anatomy and physiology of the cerebral endothelium. Where appropriate, we discuss the detrimental effects of high blood pressure on the cerebral endothelium and the contribution of cerebrovascular disease endothelial dysfunction and dementia. © 2022 American Physiological Society. Compr Physiol 12:3449-3508, 2022.
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Affiliation(s)
- Theresa A Lansdell
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, 48824, USA
| | - Laura C Chambers
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, 48824, USA
| | - Anne M Dorrance
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, 48824, USA
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26
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Sharma I, Yadav KS, Mugale MN. Redoxisome and diabetic retinopathy: Pathophysiology and therapeutic interventions. Pharmacol Res 2022; 182:106292. [PMID: 35691540 DOI: 10.1016/j.phrs.2022.106292] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/21/2022] [Accepted: 06/05/2022] [Indexed: 10/18/2022]
Abstract
Diabetic retinopathy (DR) is a chronic microvascular complication of diabetes mellitus (DM). It is a worldwide growing epidemic disease considered to be the leading cause of vision-loss and blindness in people with DM. Redox reactions occurring at the extra- and intracellular levels are essential for the maintenance of cellular homeostasis. Dysregulation of redox homeostasis are implicated in the onset and development of DR. Thioredoxin1 (TRX1) and Thioredoxin2 (TRX2) are cytoplasmic and mitochondrially localized antioxidant proteins ubiquitously expressed in various cells and control cellular reactive oxygen species (ROS) by reducing the disulfides into thiol groups. Thioredoxin-interacting protein (TXNIP) binds to TRX system and inhibits the active reduced form of TRX through disulfide exchange reaction. Recent studies indicate the association of TRX/TXNIP with redox signal transduction pathways including activation of Nod-like receptor pyrin domain containing protein-3 (NLRP3) inflammasome, apoptosis, autophagy/mitophagy, epigenetic modifications in a redox-dependent manner. Thus, it is important to gain a more in-depth understanding about the cellular and molecular mechanisms that links redoxisome and ER/Mitochondrial dysfunction to drive the progression of DR. The purpose of this review is to provide a mechanistic understanding of the complex molecular mechanisms and pathophysiological roles associated with redoxisome, the TRX/TXNIP redox signaling complex under oxidative stress in the development of DR. Also, the molecular targets of FDA approved drugs and clinical trials in addition to effective antioxidant strategies for the treatment of diabetic retinopathy are reviewed.
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Affiliation(s)
- Isha Sharma
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India
| | - Karan Singh Yadav
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Madhav Nilakanth Mugale
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India.
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27
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Xie Y, Nishijima Y, Zinkevich NS, Korishettar A, Fang J, Mathison AJ, Zimmermann MT, Wilcox DA, Gutterman DD, Shen Y, Zhang DX. NADPH oxidase 4 contributes to TRPV4-mediated endothelium-dependent vasodilation in human arterioles by regulating protein phosphorylation of TRPV4 channels. Basic Res Cardiol 2022; 117:24. [PMID: 35469044 PMCID: PMC9119129 DOI: 10.1007/s00395-022-00932-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 02/07/2023]
Abstract
Impaired endothelium-dependent vasodilation has been suggested to be a key component of coronary microvascular dysfunction (CMD). A better understanding of endothelial pathways involved in vasodilation in human arterioles may provide new insight into the mechanisms of CMD. The goal of this study is to investigate the role of TRPV4, NOX4, and their interaction in human arterioles and examine the underlying mechanisms. Arterioles were freshly isolated from adipose and heart tissues obtained from 71 patients without coronary artery disease, and vascular reactivity was studied by videomicroscopy. In human adipose arterioles (HAA), ACh-induced dilation was significantly reduced by TRPV4 inhibitor HC067047 and by NOX 1/4 inhibitor GKT137831, but GKT137831 did not further affect the dilation in the presence of TRPV4 inhibitors. GKT137831 also inhibited TRPV4 agonist GSK1016790A-induced dilation in HAA and human coronary arterioles (HCA). NOX4 transcripts and proteins were detected in endothelial cells of HAA and HCA. Using fura-2 imaging, GKT137831 significantly reduced GSK1016790A-induced Ca2+ influx in the primary culture of endothelial cells and TRPV4-WT-overexpressing human coronary artery endothelial cells (HCAEC). However, GKT137831 did not affect TRPV4-mediated Ca2+ influx in non-phosphorylatable TRPV4-S823A/S824A-overexpressing HCAEC. In addition, treatment of HCAEC with GKT137831 decreased the phosphorylation level of Ser824 in TRPV4. Finally, proximity ligation assay (PLA) revealed co-localization of NOX4 and TRPV4 proteins. In conclusion, both TRPV4 and NOX4 contribute to ACh-induced dilation in human arterioles from patients without coronary artery disease. NOX4 increases TRPV4 phosphorylation in endothelial cells, which in turn enhances TRPV4-mediated Ca2+ entry and subsequent endothelium-dependent dilation in human arterioles.
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Affiliation(s)
- Yangjing Xie
- School of Basic Medical Sciences, Anhui Medical University, 81 Meishan Road, Hefei 230032, China.,Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Yoshinori Nishijima
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Natalya S. Zinkevich
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Biology, College of Liberal Arts and Sciences, University of Illinois at Springfield, Springfield, IL, USA
| | - Ankush Korishettar
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Juan Fang
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA.,Children’s Research Institute, Children’s Wisconsin, Milwaukee, WI, USA
| | - Angela J. Mathison
- Bioinformatics Research and Development Laboratory, Genomic Sciences and Precision Medicine Center (GSPMC), Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Michael T. Zimmermann
- Bioinformatics Research and Development Laboratory, Genomic Sciences and Precision Medicine Center (GSPMC), Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - David A. Wilcox
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA.,Children’s Research Institute, Children’s Wisconsin, Milwaukee, WI, USA
| | - David D. Gutterman
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Yuxian Shen
- School of Basic Medical Sciences, Anhui Medical University, 81 Meishan Road, Hefei 230032, China.,Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China.,Article correspondence to: David X. Zhang, Ph.D., Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI, 53226, USA, Tel: (414) 955-5633, Fax: (414) 955-6572, And Yuxian Shen, Ph.D., School of Basic Medical Sciences and Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China, Tel: +86-551-6511-3776,
| | - David X. Zhang
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA.,Article correspondence to: David X. Zhang, Ph.D., Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI, 53226, USA, Tel: (414) 955-5633, Fax: (414) 955-6572, And Yuxian Shen, Ph.D., School of Basic Medical Sciences and Biopharmaceutical Institute, Anhui Medical University, 81 Meishan Road, Hefei 230032, China, Tel: +86-551-6511-3776,
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Mironova GY, Mazumdar N, Hashad AM, El-Lakany MA, Welsh DG. Defining a Role of NADPH Oxidase in Myogenic Tone Development. Microcirculation 2022; 29:e12756. [PMID: 35289024 DOI: 10.1111/micc.12756] [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: 08/10/2021] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The myogenic response sets the foundation for blood flow control. Recent findings suggest a role for G-protein coupled receptors (GPCR) and signaling pathways tied to the generation of reactive oxygen species (ROS). In this regard, this study ascertained the impact of NADPH oxidase (Nox) on myogenic tone in rat cerebral resistance arteries. METHODS The study employed real-time qPCR (RT-qPCR), pressure myography, and immunohistochemistry. RESULTS Gq blockade abolished myogenic tone in rat cerebral arteries, linking GPCR to mechanosensation. Subsequent work revealed that general (TEMPOL) and mitochondrial specific (MitoTEMPO) ROS scavengers had little impact on myogenic tone, whereas apocynin, a broad spectrum Nox inhibitor, initiated transient dilation. RT-qPCR revealed Nox1 and Nox2 mRNA expression in smooth muscle cells. Pressure myography defined Nox1 rather than Nox2 is facilitating myogenic tone. We rationalized that Nox1-generated ROS was initiating this response by impairing the ability of the CaV 3.2 channel to elicit negative feedback via BKCa . This hypothesis was confirmed in functional experiments. The proximity ligation assay further revealed that Nox1 and CaV 3.2 colocalize within 40 nm of one another. CONCLUSIONS Our data highlight that vascular pressurization augments Nox1 activity and ensuing ROS production facilitates myogenic tone by limiting Ca2+ influx via CaV 3.2.
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Affiliation(s)
- Galina Yu Mironova
- Robarts Research Institute and Dept. of Physiology & Pharmacology, The University of Western Ontario, London, Ontario, Canada
| | - Neil Mazumdar
- Robarts Research Institute and Dept. of Physiology & Pharmacology, The University of Western Ontario, London, Ontario, Canada
| | - Ahmed M Hashad
- Robarts Research Institute and Dept. of Physiology & Pharmacology, The University of Western Ontario, London, Ontario, Canada.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mohammed A El-Lakany
- Robarts Research Institute and Dept. of Physiology & Pharmacology, The University of Western Ontario, London, Ontario, Canada.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Donald G Welsh
- Robarts Research Institute and Dept. of Physiology & Pharmacology, The University of Western Ontario, London, Ontario, Canada
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Shi W, Zhang X, Xu C, Pang R, Fan Z, Wan X, Jiang Z, Li H, Li Z, Zhang H. Identification of Hub Genes and Pathways Associated with Oxidative Stress of Cartilage in Osteonecrosis of Femoral Head Using Bioinformatics Analysis. Cartilage 2022; 13:19476035221074000. [PMID: 35118903 PMCID: PMC9137318 DOI: 10.1177/19476035221074000] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE This study aimed to identify the hub genes and pathways of genes related to oxidative stress of cartilage in osteonecrosis of femoral head (ONFH), and to predict the transcription factors of the hub genes. METHODS The GSE74089 was obtained from the Gene Expression Omnibus (GEO) database, including 4 necrotic tissues and 4 normal tissues, and the differentially expressed genes (DEGs) were identified by limma package in R language. Simultaneously, we searched for the genes related to oxidative stress in the Gene Ontology (GO) database. GO and signaling pathways analysis were performed using DAVID, Metascape, and GSEA. Protein-protein interaction (PPI) network was constructed using the STRING database, and the Degree algorithm of Cytoscape software was used to screen for hub genes. Finally, the NetworkAnalyst web tool was used to find the hub genes' transcriptional factors (TFs). RESULTS In total, 440 oxidative stress-related genes were found in GSE74089 and GO database, and 88 of them were significantly differentially expressed. These genes were mainly involved in several signaling pathways, such as MAPK signaling pathway, PI3K-AKT-mTOR signaling pathway, FOXO signaling pathway. The top 10 hub genes were JUN, FOXO3, CASP3, JAK2, RELA, EZH2, ABL1, PTGS2, FBXW7, MCL1. Besides, TFAP2A, GATA2, SP1, and E2F1 may be the key regulatory factors of hub genes. CONCLUSIONS We identified some hub genes and signaling pathways associated with oxidative stress in ONFH through a series of bioinformatics analyses.
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Affiliation(s)
- Wei Shi
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Xinglong Zhang
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Chunlei Xu
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Ran Pang
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Zhenqi Fan
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Xin Wan
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Zhaohui Jiang
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Hui Li
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Zhijun Li
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China,Zhijun Li, Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin 300052, P.R. China.
| | - Huafeng Zhang
- Department of Orthopedics, General Hospital of Tianjin Medical University, Tianjin, P.R. China
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El-Mahdy MA, Ewees MG, Eid MS, Mahgoup EM, Khaleel SA, Zweier JL. Electronic Cigarette Exposure Causes Vascular Endothelial Dysfunction Due to NADPH Oxidase Activation and eNOS Uncoupling. Am J Physiol Heart Circ Physiol 2022; 322:H549-H567. [PMID: 35089811 PMCID: PMC8917923 DOI: 10.1152/ajpheart.00460.2021] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We recently reported a mouse model of chronic electronic cigarette (e-cig) exposure-induced cardiovascular pathology, where long-term exposure to e-cig vape (ECV) induces cardiac abnormalities, impairment of endothelial function, and systemic hypertension. Here, we delineate the underlying mechanisms of ECV-induced vascular endothelial dysfunction (VED), a central trigger of cardiovascular disease. C57/BL6 male mice were exposed to ECV generated from e-cig liquid containing 0, 6, or 24 mg/ml nicotine for 16 and 60 weeks. Time-dependent elevation in blood pressure and systemic vascular resistance were observed, along with an impairment of acetylcholine-induced aortic relaxation in ECV-exposed mice, compared to air-exposed control. Decreased intravascular nitric oxide (NO) levels and increased superoxide generation with elevated 3-nitrotyrosine levels in the aorta of ECV-exposed mice were observed, indicating that ECV-induced superoxide reacts with NO to generate cytotoxic peroxynitrite. Exposure increased NADPH oxidase expression, supporting its role in ECV-induced superoxide generation. Downregulation of endothelial nitric oxide synthase (eNOS) expression and Akt-dependent eNOS phosphorylation occurred in the aorta of ECV-exposed mice, indicating that exposure inhibited de novo NO synthesis. Following ECV exposure, the critical NOS cofactor tetrahydrobiopterin was decreased, with a concomitant loss of its salvage enzyme, dihydrofolate reductase. NADPH oxidase and NOS inhibitors abrogated ECV-induced superoxide generation in the aorta of ECV exposed mice. Together, our data demonstrate that ECV exposure activates NADPH oxidase and uncouples eNOS, causing a vicious cycle of superoxide generation and vascular oxidant stress that triggers VED and hypertension with predisposition to other cardiovascular disease.
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Affiliation(s)
- Mohamed A El-Mahdy
- Center for Environmental and Smoking Induced Disease and the Department of Internal Medicine, Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio, United States
| | - Mohamed G Ewees
- Center for Environmental and Smoking Induced Disease and the Department of Internal Medicine, Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio, United States
| | - Mahmoud S Eid
- Center for Environmental and Smoking Induced Disease and the Department of Internal Medicine, Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio, United States
| | - Elsayed M Mahgoup
- Center for Environmental and Smoking Induced Disease and the Department of Internal Medicine, Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio, United States
| | - Sahar A Khaleel
- Center for Environmental and Smoking Induced Disease and the Department of Internal Medicine, Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio, United States.,Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Jay L Zweier
- Center for Environmental and Smoking Induced Disease and the Department of Internal Medicine, Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio, United States
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31
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Chen S, Shao L, Ma L. Cerebral Edema Formation After Stroke: Emphasis on Blood-Brain Barrier and the Lymphatic Drainage System of the Brain. Front Cell Neurosci 2021; 15:716825. [PMID: 34483842 PMCID: PMC8415457 DOI: 10.3389/fncel.2021.716825] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/20/2021] [Indexed: 01/01/2023] Open
Abstract
Brain edema is a severe stroke complication that is associated with prolonged hospitalization and poor outcomes. Swollen tissues in the brain compromise cerebral perfusion and may also result in transtentorial herniation. As a physical and biochemical barrier between the peripheral circulation and the central nervous system (CNS), the blood–brain barrier (BBB) plays a vital role in maintaining the stable microenvironment of the CNS. Under pathological conditions, such as ischemic stroke, the dysfunction of the BBB results in increased paracellular permeability, directly contributing to the extravasation of blood components into the brain and causing cerebral vasogenic edema. Recent studies have led to the discovery of the glymphatic system and meningeal lymphatic vessels, which provide a channel for cerebrospinal fluid (CSF) to enter the brain and drain to nearby lymph nodes and communicate with the peripheral immune system, modulating immune surveillance and brain responses. A deeper understanding of the function of the cerebral lymphatic system calls into question the known mechanisms of cerebral edema after stroke. In this review, we first discuss how BBB disruption after stroke can cause or contribute to cerebral edema from the perspective of molecular and cellular pathophysiology. Finally, we discuss how the cerebral lymphatic system participates in the formation of cerebral edema after stroke and summarize the pathophysiological process of cerebral edema formation after stroke from the two directions of the BBB and cerebral lymphatic system.
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Affiliation(s)
- Sichao Chen
- Department of Neurosurgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Linqian Shao
- Department of Neurosurgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Li Ma
- Department of Neurosurgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Liu Q, Yang M, Zhang L, Zhang R, Huang X, Wang X, Du W, Hou J. Metformin inhibits cholesterol‑induced adhesion molecule expression via activating the AMPK signaling pathway in vascular smooth muscle cells. Mol Med Rep 2021; 24:709. [PMID: 34396446 PMCID: PMC8383040 DOI: 10.3892/mmr.2021.12348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 06/23/2021] [Indexed: 11/24/2022] Open
Abstract
Recruitment of lymphocytes to the vascular wall contributes to the pathogenesis of atherosclerosis (AS). The expression of cellular adhesion molecules, such as vascular cell adhesion molecule-1 and intercellular adhesion molecule-1, serves a critical role in mediating lymphocyte adhesion to the vascular wall. Cholesterol loading induces the expression of adhesion molecules in vascular smooth muscle cells (VSMCs), but the underlying mechanism is not completely understood. The present study aimed to investigate the mechanism underlying the effects of cholesterol on adhesion molecule expression, and whether metformin protected VSMCs against cholesterol-induced functional alterations. Human VSMCs were loaded with cholesterol and different concentrations of metformin. The expression levels of adhesion molecules were assessed via reverse transcription-quantitative PCR and western blotting. Reactive oxygen species (ROS) accumulation and levels were quantified via fluorescence assays and spectrophotometry, respectively. AMP-activated protein kinase (AMPK), p38 MAPK and NF-κB signaling pathway-related protein expression levels were evaluated via western blotting. Compared with the control group, cholesterol loading significantly upregulated adhesion molecule expression levels on VSMCs by increasing intracellular ROS levels and activating the p38 MAPK and NF-κB signaling pathways. Metformin decreased cholesterol-induced VSMC damage by activating the AMPK signaling pathway, and suppressing p38 MAPK and NF-κB signaling. The present study indicated the therapeutic potential of metformin for VSMC protection, reduction of monocyte adhesion, and ultimately, the prevention and treatment of AS.
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Affiliation(s)
- Qi Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Mengyue Yang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Lu Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Ruoxi Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Xingtao Huang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Xuedong Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Wenjuan Du
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Jingbo Hou
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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The Pivotal Role of Oxidative Stress in the Pathophysiology of Cardiovascular-Renal Remodeling in Kidney Disease. Antioxidants (Basel) 2021; 10:antiox10071041. [PMID: 34209494 PMCID: PMC8300817 DOI: 10.3390/antiox10071041] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 12/31/2022] Open
Abstract
The excessive activation of the renin-angiotensin system in kidney disease leads to alteration of intracellular pathways which concur altogether to the induction of cardiovascular and renal remodeling, exposing these patients since the very beginning of the renal injury to chronic kidney disease and progression to end stage renal disease, a very harmful and life threatening clinical condition. Oxidative stress plays a pivotal role in the pathophysiology of renal injury and cardiovascular-renal remodeling, the long-term consequence of its effect. This review will examine the role of oxidative stress in the most significant pathways involved in cardiovascular and renal remodeling with a focus on the detrimental effects of oxidative stress-mediated renal abnormalities on the progression of the disease and of its complications. Food for thoughts on possible therapeutic target are proposed on the basis of experimental evidences.
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Baby S, Gruber R, Discala J, Puskovic V, Jose N, Cheng F, Jenkins M, Seckler J, Lewis S. Systemic Administration of Tempol Attenuates the Cardiorespiratory Depressant Effects of Fentanyl. Front Pharmacol 2021; 12:690407. [PMID: 34248639 PMCID: PMC8260831 DOI: 10.3389/fphar.2021.690407] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/11/2021] [Indexed: 11/30/2022] Open
Abstract
Fentanyl is a high-potency opioid receptor agonist that elicits profound analgesia and suppression of breathing in humans and animals. To date, there is limited evidence as to whether changes in oxidant stress are important factors in any of the actions of acutely administered fentanyl. This study determined whether the clinically approved superoxide dismutase mimetic, Tempol (4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl), or a potent antioxidant, N-acetyl-L-cysteine methyl ester (L-NACme), modify the cardiorespiratory and analgesic actions of fentanyl. We examined whether the prior systemic injection of Tempol or L-NACme affects the cardiorespiratory and/or analgesic responses elicited by the subsequent injection of fentanyl in isoflurane-anesthetized and/or freely moving male Sprague-Dawley rats. Bolus injections of Tempol (25, 50 or 100 mg/kg, IV) elicited minor increases in frequency of breathing, tidal volume and minute ventilation. The ventilatory-depressant effects of fentanyl (5 μg/kg, IV) given 15 min later were dose-dependently inhibited by prior injections of Tempol. Tempol elicited dose-dependent and transient hypotension that had (except for the highest dose) resolved when fentanyl was injected. The hypotensive responses elicited by fentanyl were markedly blunted after Tempol pretreatment. The analgesic actions of fentanyl (25 μg/kg, IV) were not affected by Tempol (100 mg/kg, IV). L-NACme did not modify any of the effects of fentanyl. We conclude that prior administration of Tempol attenuates the cardiorespiratory actions of fentanyl without affecting the analgesic effects of this potent opioid. As such, Tempol may not directly affect opioid-receptors that elicit the effects of fentanyl. Whether, the effects of Tempol are solely due to alterations in oxidative stress is in doubt since the powerful antioxidant, L-NACme, did not affect fentanyl-induced suppression of breathing.
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Affiliation(s)
- Santhosh Baby
- Galleon Pharmaceuticals, Inc., Horsham, PA, United States
| | - Ryan Gruber
- Galleon Pharmaceuticals, Inc., Horsham, PA, United States
| | - Joseph Discala
- Galleon Pharmaceuticals, Inc., Horsham, PA, United States
| | | | - Nijo Jose
- Department of Radiotherapy and Oncology, Kasturba Medical College, Manipal, India
| | - Feixiong Cheng
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Michael Jenkins
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States.,Department of Pediatrics, Case Western Reserve University, Cleveland, OH, United States
| | - James Seckler
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
| | - Stephen Lewis
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH, United States
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35
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Ekholm M, Kahan T. The Impact of the Renin-Angiotensin-Aldosterone System on Inflammation, Coagulation, and Atherothrombotic Complications, and to Aggravated COVID-19. Front Pharmacol 2021; 12:640185. [PMID: 34220496 PMCID: PMC8245685 DOI: 10.3389/fphar.2021.640185] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 06/07/2021] [Indexed: 12/20/2022] Open
Abstract
Atherosclerosis is considered a disease caused by a chronic inflammation, associated with endothelial dysfunction, and several mediators of inflammation are up-regulated in subjects with atherosclerotic disease. Healthy, intact endothelium exhibits an antithrombotic, protective surface between the vascular lumen and vascular smooth muscle cells in the vessel wall. Oxidative stress is an imbalance between anti- and prooxidants, with a subsequent increase of reactive oxygen species, leading to tissue damage. The renin-angiotensin-aldosterone system is of vital importance in the pathobiology of vascular disease. Convincing data indicate that angiotensin II accelerates hypertension and augments the production of reactive oxygen species. This leads to the generation of a proinflammatory phenotype in human endothelial and vascular smooth muscle cells by the up-regulation of adhesion molecules, chemokines and cytokines. In addition, angiotensin II also seems to increase thrombin generation, possibly via a direct impact on tissue factor. However, the mechanism of cross-talk between inflammation and haemostasis can also contribute to prothrombotic states in inflammatory environments. Thus, blocking of the renin-angiotensin-aldosterone system might be an approach to reduce both inflammatory and thrombotic complications in high-risk patients. During COVID-19, the renin-angiotensin-aldosterone system may be activated. The levels of angiotensin II could contribute to the ongoing inflammation, which might result in a cytokine storm, a complication that significantly impairs prognosis. At the outbreak of COVID-19 concerns were raised about the use of angiotensin converting enzyme inhibitors and angiotensin receptor blocker drugs in patients with COVID-19 and hypertension or other cardiovascular comorbidities. However, the present evidence is in favor of continuing to use of these drugs. Based on experimental evidence, blocking the renin-angiotensin-aldosterone system might even exert a potentially protective influence in the setting of COVID-19.
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Affiliation(s)
- M Ekholm
- Karolinska Institutet, Department of Clinical Sciences, Danderyd Hospital, Division of Cardiovascular Medicine, Stockholm, Sweden
| | - T Kahan
- Karolinska Institutet, Department of Clinical Sciences, Danderyd Hospital, Division of Cardiovascular Medicine, Stockholm, Sweden
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36
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Grijalva-Guiza RE, Jiménez-Garduño AM, Hernández LR. Potential Benefits of Flavonoids on the Progression of Atherosclerosis by Their Effect on Vascular Smooth Muscle Excitability. Molecules 2021; 26:3557. [PMID: 34200914 PMCID: PMC8230563 DOI: 10.3390/molecules26123557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/05/2021] [Accepted: 06/06/2021] [Indexed: 12/26/2022] Open
Abstract
Flavonoids are a group of secondary metabolites derived from plant-based foods, and they offer many health benefits in different stages of several diseases. This review will focus on their effects on ion channels expressed in vascular smooth muscle during atherosclerosis. Since ion channels can be regulated by redox potential, it is expected that during the onset of oxidative stress-related diseases, ion channels present changes in their conductive activity, impacting the progression of the disease. A typical oxidative stress-related condition is atherosclerosis, which involves the dysfunction of vascular smooth muscle. We aim to present the state of the art on how redox potential affects vascular smooth muscle ion channel function and summarize if the benefits observed in this disease by using flavonoids involve restoring the ion channel activity.
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Affiliation(s)
- Rosa Edith Grijalva-Guiza
- Departamento de Ciencias Químico Biológicas, Universidad de las Américas Puebla, San Andrés Cholula 72810, Mexico;
| | | | - Luis Ricardo Hernández
- Departamento de Ciencias Químico Biológicas, Universidad de las Américas Puebla, San Andrés Cholula 72810, Mexico;
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Ezrokhi M, Zhang Y, Luo S, Cincotta AH. Time-of-Day-Dependent Effects of Bromocriptine to Ameliorate Vascular Pathology and Metabolic Syndrome in SHR Rats Held on High Fat Diet. Int J Mol Sci 2021; 22:ijms22116142. [PMID: 34200262 PMCID: PMC8201259 DOI: 10.3390/ijms22116142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/28/2021] [Accepted: 06/04/2021] [Indexed: 12/31/2022] Open
Abstract
The treatment of type 2 diabetes patients with bromocriptine-QR, a unique, quick release micronized formulation of bromocriptine, improves glycemic control and reduces adverse cardiovascular events. While the improvement of glycemic control is largely the result of improved postprandial hepatic glucose metabolism and insulin action, the mechanisms underlying the drug's cardioprotective effects are less well defined. Bromocriptine is a sympatholytic dopamine agonist and reduces the elevated sympathetic tone, characteristic of metabolic syndrome and type 2 diabetes, which potentiates elevations of vascular oxidative/nitrosative stress, known to precipitate cardiovascular disease. Therefore, this study investigated the impact of bromocriptine treatment upon biomarkers of vascular oxidative/nitrosative stress (including the pro-oxidative/nitrosative stress enzymes of NADPH oxidase 4, inducible nitric oxide (iNOS), uncoupled endothelial nitric oxide synthase (eNOS), the pro-inflammatory/pro-oxidative marker GTP cyclohydrolase 1 (GTPCH 1), and the pro-vascular health enzyme, soluble guanylate cyclase (sGC) as well as the plasma level of thiobarbituric acid reactive substances (TBARS), a circulating marker of systemic oxidative stress), in hypertensive SHR rats held on a high fat diet to induce metabolic syndrome. Inasmuch as the central nervous system (CNS) dopaminergic activities both regulate and are regulated by CNS circadian pacemaker circuitry, this study also investigated the time-of-day-dependent effects of bromocriptine treatment (10 mg/kg/day at either 13 or 19 h after the onset of light (at the natural waking time or late during the activity period, respectively) among animals held on 14 h daily photoperiods for 16 days upon such vascular biomarkers of vascular redox state, several metabolic syndrome parameters, and mediobasal hypothalamic (MBH) mRNA expression levels of neuropeptides neuropeptide Y (NPY) and agouti-related protein (AgRP) which regulate the peripheral fuel metabolism and of mRNA expression of other MBH glial and neuronal cell genes that support such metabolism regulating neurons in this model system. Such bromocriptine treatment at ZT 13 improved (reduced) biomarkers of vascular oxidative/nitrosative stress including plasma TBARS level, aortic NADPH oxidase 4, iNOS and GTPCH 1 levels, and improved other markers of coupled eNOS function, including increased sGC protein level, relative to controls. However, bromocriptine treatment at ZT 19 produced no improvement in either coupled eNOS function or sGC protein level. Moreover, such ZT 13 bromocriptine treatment reduced several metabolic syndrome parameters including fasting insulin and leptin levels, as well as elevated systolic and diastolic blood pressure, insulin resistance, body fat store levels and liver fat content, however, such effects of ZT 19 bromocriptine treatment were largely absent versus control. Finally, ZT 13 bromocriptine treatment reduced MBH NPY and AgRP mRNA levels and mRNA levels of several MBH glial cell/neuronal genes that code for neuronal support/plasticity proteins (suggesting a shift in neuronal structure/function to a new metabolic control state) while ZT 19 treatment reduced only AgRP, not NPY, and was with very little effect on such MBH glial cell genes expression. These findings indicate that circadian-timed bromocriptine administration at the natural circadian peak of CNS dopaminergic activity (that is diminished in insulin resistant states), but not outside this daily time window when such CNS dopaminergic activity is naturally low, produces widespread improvements in biomarkers of vascular oxidative stress that are associated with the amelioration of metabolic syndrome and reductions in MBH neuropeptides and gene expressions known to facilitate metabolic syndrome. These results of such circadian-timed bromocriptine treatment upon vascular pathology provide potential mechanisms for the observed marked reductions in adverse cardiovascular events with circadian-timed bromocriptine-QR therapy (similarly timed to the onset of daily waking as in this study) of type 2 diabetes subjects and warrant further investigations into related mechanisms and the potential application of such intervention to prediabetes and metabolic syndrome patients as well.
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Pan J, Lao L, Shen J, Huang S, Zhang T, Fan W, Yan M, Gu J, Liu W. Utility of serum NOX4 as a potential prognostic biomarker for aneurysmal subarachnoid hemorrhage. Clin Chim Acta 2021; 517:9-14. [DOI: 10.1016/j.cca.2021.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/07/2021] [Accepted: 02/08/2021] [Indexed: 01/03/2023]
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Aghayari Sheikh Neshin S, Shahjouei S, Koza E, Friedenberg I, Khodadadi F, Sabra M, Kobeissy F, Ansari S, Tsivgoulis G, Li J, Abedi V, Wolk DM, Zand R. Stroke in SARS-CoV-2 Infection: A Pictorial Overview of the Pathoetiology. Front Cardiovasc Med 2021; 8:649922. [PMID: 33855053 PMCID: PMC8039152 DOI: 10.3389/fcvm.2021.649922] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/01/2021] [Indexed: 12/15/2022] Open
Abstract
Since the early days of the pandemic, there have been several reports of cerebrovascular complications during the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Numerous studies proposed a role for SARS-CoV-2 in igniting stroke. In this review, we focused on the pathoetiology of stroke among the infected patients. We pictured the results of the SARS-CoV-2 invasion to the central nervous system (CNS) via neuronal and hematogenous routes, in addition to viral infection in peripheral tissues with extensive crosstalk with the CNS. SARS-CoV-2 infection results in pro-inflammatory cytokine and chemokine release and activation of the immune system, COVID-19-associated coagulopathy, endotheliitis and vasculitis, hypoxia, imbalance in the renin-angiotensin system, and cardiovascular complications that all may lead to the incidence of stroke. Critically ill patients, those with pre-existing comorbidities and patients taking certain medications, such as drugs with elevated risk for arrhythmia or thrombophilia, are more susceptible to a stroke after SARS-CoV-2 infection. By providing a pictorial narrative review, we illustrated these associations in detail to broaden the scope of our understanding of stroke in SARS-CoV-2-infected patients. We also discussed the role of antiplatelets and anticoagulants for stroke prevention and the need for a personalized approach among patients with SARS-CoV-2 infection.
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Affiliation(s)
| | - Shima Shahjouei
- Neurology Department, Neuroscience Institute, Geisinger Health System, Danville, PA, United States
| | - Eric Koza
- Geisinger Commonwealth School of Medicine, Scranton, PA, United States
| | - Isabel Friedenberg
- Department of Biology, Pennsylvania State University, State College, PA, United States
| | | | - Mirna Sabra
- Neurosciences Research Center (NRC), Lebanese University/Medical School, Beirut, Lebanon
| | - Firas Kobeissy
- Program of Neurotrauma, Neuroproteomics and Biomarker Research (NNBR), University of Florida, Gainesville, FL, United States
| | - Saeed Ansari
- National Institute of Neurological Disorders and Stroke, National Institute of Health, Bethesda, MD, United States
| | - Georgios Tsivgoulis
- Second Department of Neurology, School of Medicine, "Attikon" University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Jiang Li
- Department of Molecular and Functional Genomics, Geisinger Health System, Danville, PA, United States
| | - Vida Abedi
- Department of Molecular and Functional Genomics, Geisinger Health System, Danville, PA, United States.,Biocomplexity Institute, Virginia Tech, Blacksburg, VA, United States
| | - Donna M Wolk
- Molecular and Microbial Diagnostics and Development, Diagnostic Medicine Institute, Laboratory Medicine, Geisinger Health System, Danville, PA, United States
| | - Ramin Zand
- Neurology Department, Neuroscience Institute, Geisinger Health System, Danville, PA, United States
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Jurcau A. The Role of Natural Antioxidants in the Prevention of Dementia-Where Do We Stand and Future Perspectives. Nutrients 2021; 13:282. [PMID: 33498262 PMCID: PMC7909256 DOI: 10.3390/nu13020282] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 02/06/2023] Open
Abstract
Dementia, and especially Alzheimer's disease (AD), puts significant burden on global healthcare expenditure through its increasing prevalence. Research has convincingly demonstrated the implication of oxidative stress in the pathogenesis of dementia as well as of the conditions which increase the risk of developing dementia. However, drugs which target single pathways have so far failed in providing significant neuroprotection. Natural antioxidants, due to their effects in multiple pathways through which oxidative stress leads to neurodegeneration and triggers neuroinflammation, could prove valuable weapons in our fight against dementia. Although efficient in vitro and in animal models of AD, natural antioxidants in human trials have many drawbacks related to the limited bioavailability, unknown optimal dose, or proper timing of the treatment. Nonetheless, trials evaluating several of these natural compounds are ongoing, as are attempts to modify these compounds to achieve improved bioavailability.
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Affiliation(s)
- Anamaria Jurcau
- Department of Psycho-Neurosciences and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, nr 1 Universitatii Street, 410087 Oradea, Romania;
- Neurology Ward, Clinical Municipal Hospital “Dr. G. Curteanu”, nr 12 Corneliu Coposu Street, 410469 Oradea, Romania
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Fenofibrate Protects Cardiomyocytes from Hypoxia/Reperfusion- and High Glucose-Induced Detrimental Effects. PPAR Res 2021; 2021:8895376. [PMID: 33505452 PMCID: PMC7811426 DOI: 10.1155/2021/8895376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/03/2020] [Accepted: 12/22/2020] [Indexed: 01/11/2023] Open
Abstract
Lesions caused by high glucose (HG), hypoxia/reperfusion (H/R), and the coexistence of both conditions in cardiomyocytes are linked to an overproduction of reactive oxygen species (ROS), causing irreversible damage to macromolecules in the cardiomyocyte as well as its ultrastructure. Fenofibrate, a peroxisome proliferator-activated receptor alpha (PPARα) agonist, promotes beneficial activities counteracting cardiac injury. Therefore, the objective of this work was to determine the potential protective effect of fenofibrate in cardiomyocytes exposed to HG, H/R, and HG+H/R. Cardiomyocyte cultures were divided into four main groups: (1) control (CT), (2) HG (25 mM), (3) H/R, and (4) HG+H/R. Our results indicate that cell viability decreases in cardiomyocytes undergoing HG, H/R, and both conditions, while fenofibrate improves cell viability in every case. Fenofibrate also decreases ROS production as well as nicotinamide adenine dinucleotide phosphate oxidase (NADPH) subunit expression. Regarding the antioxidant defense, superoxide dismutase (SOD Cu2+/Zn2+ and SOD Mn2+), catalase, and the antioxidant capacity were decreased in HG, H/R, and HG+H/R-exposed cardiomyocytes, while fenofibrate increased those parameters. The expression of nuclear factor erythroid 2-related factor 2 (Nrf2) increased significantly in treated cells, while pathologies increased the expression of its inhibitor Keap1. Oxidative stress-induced mitochondrial damage was lower in fenofibrate-exposed cardiomyocytes. Endothelial nitric oxide synthase was also favored in cardiomyocytes treated with fenofibrate. Our results suggest that fenofibrate preserves the antioxidant status and the ultrastructure in cardiomyocytes undergoing HG, H/R, and HG+H/R preventing damage to essential macromolecules involved in the proper functioning of the cardiomyocyte.
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Zhang Q, Yuan P, Li M, Fu Y, Hou Y, Sun Y, Gao L, Wei Y, Feng W, Zheng X. Effect of phenylacetamide isolated from lepidium apetalum on myocardial injury in spontaneously hypertensive rats and its possible mechanism. PHARMACEUTICAL BIOLOGY 2020; 58:597-609. [PMID: 32631115 PMCID: PMC7470167 DOI: 10.1080/13880209.2020.1778043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/30/2019] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
Context: In the antihypertensive study of phenylacetamide (PA) on spontaneously hypertensive rats (SHR), it was occasionally found that PA prevents myocardial injury.Objective: Clarify the protective mechanism of PA on myocardial injury in SHR rats.Materials and methods: In vivo, SHR rats were treated with or without PA (15, 30, 45 mg/kg) for 3 weeks (12 per group). In vitro, H9c2 cells were treated with PA (1, 5, 10 μM) for 24 h, and then stimulated with H2O2 (300 μM) for 4 h. Molecular mechanisms were explored through cardiac pathology, cardiac function and biochemical markers.Results: In vivo, PA (15, 30, 45 mg/kg) reduced CVF from 14.8 ± 1.62 to 9.94 ± 1.56, 8.6 ± 1.33, 8.14 ± 1.45%; increased the LVEF relative level from 0.8 ± 0.06 to 0.83 ± 0.04, 0.86 ± 0.05, 0.9 ± 0.04. All three doses can improve the cardiac pathological structure and function (LVEDD, LVESD, LVFS, heart index, NT-proBNP, CKMB, SBP); however, 45 mg/kg works best. But different doses show different molecular mechanisms. PA (15 mg/kg) improves RAAS system (REN, ACE), inflammation (ET-1, IL-1β) and MAPK pathway (p-ERK/ERK, p-JNK/JNK) better. PA (45 mg/kg) improves oxidative stress (SOD, NOX1) and TGF-β pathway (Smad3) better. In vitro, PA improved cell viability, oxidative stress (SOD, NOX1) and Smad3 protein expression.Discussion and conclusions: PA regulates different mechanisms at different concentrations to improve myocardial injury, and high dose is the best. This experiment provides a theoretical basis for the development of new clinical drugs for cardiovascular disease.
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Affiliation(s)
- Qi Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Peipei Yuan
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Meng Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Yang Fu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Ying Hou
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Yaping Sun
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Liyuan Gao
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Yaxin Wei
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Weisheng Feng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
| | - Xiaoke Zheng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Zhengzhou, China
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43
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Kang Q, Yang C. Oxidative stress and diabetic retinopathy: Molecular mechanisms, pathogenetic role and therapeutic implications. Redox Biol 2020; 37:101799. [PMID: 33248932 PMCID: PMC7767789 DOI: 10.1016/j.redox.2020.101799] [Citation(s) in RCA: 416] [Impact Index Per Article: 104.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/29/2020] [Accepted: 11/10/2020] [Indexed: 12/18/2022] Open
Abstract
Oxidative stress, a cytopathic outcome of excessive generation of ROS and the repression of antioxidant defense system for ROS elimination, is involved in the pathogenesis of multiple diseases, including diabetes and its complications. Retinopathy, a microvascular complication of diabetes, is the primary cause of acquired blindness in diabetic patients. Oxidative stress has been verified as one critical contributor to the pathogenesis of diabetic retinopathy. Oxidative stress can both contribute to and result from the metabolic abnormalities induced by hyperglycemia, mainly including the increased flux of the polyol pathway and hexosamine pathway, the hyper-activation of protein kinase C (PKC) isoforms, and the accumulation of advanced glycation end products (AGEs). Moreover, the repression of the antioxidant defense system by hyperglycemia-mediated epigenetic modification also leads to the imbalance between the scavenging and production of ROS. Excessive accumulation of ROS induces mitochondrial damage, cellular apoptosis, inflammation, lipid peroxidation, and structural and functional alterations in retina. Therefore, it is important to understand and elucidate the oxidative stress-related mechanisms underlying the progress of diabetic retinopathy. In addition, the abnormalities correlated with oxidative stress provide multiple potential therapeutic targets to develop safe and effective treatments for diabetic retinopathy. Here, we also summarized the main antioxidant therapeutic strategies to control this disease. Oxidative stress can both contribute to and result from hyperglycemia-induced metabolic abnormalities in retina. Genes important in regulation of ROS are epigenetically modified, increasing ROS accumulation in retina. Oxidative stress is closely associated with the pathological changes in the progress of diabetic retinopathy. Antioxidants ameliorate retinopathy through targeting multiple steps of oxidative stress.
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Affiliation(s)
- Qingzheng Kang
- Institute for Advanced Study, Shenzhen University, Nanshan District, Shenzhen, 518060, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Chunxue Yang
- Department of Pathology, The University of Hong Kong, Hong Kong SAR, 999077, China.
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44
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Xu N, Jiang S, Persson PB, Persson EAG, Lai EY, Patzak A. Reactive oxygen species in renal vascular function. Acta Physiol (Oxf) 2020; 229:e13477. [PMID: 32311827 DOI: 10.1111/apha.13477] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/22/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022]
Abstract
Reactive oxygen species (ROS) are produced by the aerobic metabolism. The imbalance between production of ROS and antioxidant defence in any cell compartment is associated with cell damage and may play an important role in the pathogenesis of renal disease. NADPH oxidase (NOX) family is the major ROS source in the vasculature and modulates renal perfusion. Upregulation of Ang II and adenosine activates NOX via AT1R and A1R in renal microvessels, leading to superoxide production. Oxidative stress in the kidney prompts renal vascular remodelling and increases preglomerular resistance. These are key elements in hypertension, acute and chronic kidney injury, as well as diabetic nephropathy. Renal afferent arterioles (Af), the primary resistance vessel in the kidney, fine tune renal hemodynamics and impact on blood pressure. Vice versa, ROS increase hypertension and diabetes, resulting in upregulation of Af vasoconstriction, enhancement of myogenic responses and change of tubuloglomerular feedback (TGF), which further promotes hypertension and diabetic nephropathy. In the following, we highlight oxidative stress in the function and dysfunction of renal hemodynamics. The renal microcirculatory alterations brought about by ROS importantly contribute to the pathophysiology of kidney injury, hypertension and diabetes.
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Affiliation(s)
- Nan Xu
- Department of Physiology Zhejiang University School of Medicine Hangzhou China
| | - Shan Jiang
- Department of Physiology Zhejiang University School of Medicine Hangzhou China
| | - Pontus B. Persson
- Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
| | | | - En Yin Lai
- Department of Physiology Zhejiang University School of Medicine Hangzhou China
- Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
| | - Andreas Patzak
- Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
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45
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Tan X, Li T, Zhu S, Zhong W, Li F, Wang Y. Induction of SPARC on Oxidative Stress, Inflammatory Phenotype Transformation, and Apoptosis of Human Brain Smooth Muscle Cells Via TGF-β1-NOX4 Pathway. J Mol Neurosci 2020; 70:1728-1741. [PMID: 32495004 DOI: 10.1007/s12031-020-01566-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 04/22/2020] [Indexed: 11/30/2022]
Abstract
Secreted protein acidic and rich in cysteine (SPARC) has a close association with inflammatory response and oxidative stress in tissues and is widely expressed in intracranial aneurysms (IAs), especially in smooth muscle cells. Therefore, it is inferred that SPARC might be involved in the formation and development of IAs through the inflammatory response pathway or oxidative stress pathway. The aim of this study is to investigate the pathological mechanism of SPARC in oxidative stress, inflammation, and apoptosis during the formation of IAs, as well as the involvement of TGF-β1 and NOX4 molecules. Human brain vascular smooth muscle cells (HBVSMCs) were selected as experimental objects. After the cells were stimulated by recombinant human SPARC protein in vitro, the ROS level in the cells was measured using an ID/ROS fluorescence analysis kit combined with fluorescence microscope and flow cytometry. The related protein expression in HBVSMCs was measured using western blotting. The mitochondrial membrane potential change was detected using a mitochondrial membrane potential kit and laser confocal microscope. The mechanism was explored by intervention with reactive oxygen scavengers N-acetylcysteine (NAC), TGF-β1 inhibitor (SD-208), and siRNA knockout. The results showed that SPARC upregulated the expression of NOX4 through the TGF-β1-dependent signaling pathway, leading to oxidative stress and pro-inflammatory matrix behavior and apoptosis in HBVSMCs. These findings demonstrated that SPARC may promote the progression of IAs.
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Affiliation(s)
- Xianjun Tan
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Neurosurgery, People's Hospital of Chiping City, Liaocheng City, Shandong Province, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong Province, China
| | - Tao Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong Province, China.,Department of Neurosurgery, the No.4 People's Hospital of Jinan, Jinan City, Shandong Province, China
| | - Shaowei Zhu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong Province, China
| | - Weiying Zhong
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong Province, China
| | - Feng Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yunyan Wang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China. .,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong Province, China.
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46
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The Role of Oxidative Stress in Cardiac Disease: From Physiological Response to Injury Factor. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5732956. [PMID: 32509147 PMCID: PMC7244977 DOI: 10.1155/2020/5732956] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/11/2020] [Accepted: 04/22/2020] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) are highly reactive chemical species containing oxygen, controlled by both enzymatic and nonenzymatic antioxidant defense systems. In the heart, ROS play an important role in cell homeostasis, by modulating cell proliferation, differentiation, and excitation-contraction coupling. Oxidative stress occurs when ROS production exceeds the buffering capacity of the antioxidant defense systems, leading to cellular and molecular abnormalities, ultimately resulting in cardiac dysfunction. In this review, we will discuss the physiological sources of ROS in the heart, the mechanisms of oxidative stress-related myocardial injury, and the implications of experimental studies and clinical trials with antioxidant therapies in cardiovascular diseases.
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47
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Touyz RM, Rios FJ, Alves-Lopes R, Neves KB, Camargo LL, Montezano AC. Oxidative Stress: A Unifying Paradigm in Hypertension. Can J Cardiol 2020; 36:659-670. [PMID: 32389339 PMCID: PMC7225748 DOI: 10.1016/j.cjca.2020.02.081] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 02/07/2023] Open
Abstract
The etiology of hypertension involves complex interactions among genetic, environmental, and pathophysiologic factors that influence many regulatory systems. Hypertension is characteristically associated with vascular dysfunction, cardiovascular remodelling, renal dysfunction, and stimulation of the sympathetic nervous system. Emerging evidence indicates that the immune system is also important and that activated immune cells migrate and accumulate in tissues promoting inflammation, fibrosis, and target-organ damage. Common to these processes is oxidative stress, defined as an imbalance between oxidants and antioxidants in favour of the oxidants that leads to a disruption of oxidation-reduction (redox) signalling and control and molecular damage. Physiologically, reactive oxygen species (ROS) act as signalling molecules and influence cell function through highly regulated redox-sensitive signal transduction. In hypertension, oxidative stress promotes posttranslational modification (oxidation and phosphorylation) of proteins and aberrant signalling with consequent cell and tissue damage. Many enzymatic systems generate ROS, but NADPH oxidases (Nox) are the major sources in cells of the heart, vessels, kidneys, and immune system. Expression and activity of Nox are increased in hypertension and are the major systems responsible for oxidative stress in cardiovascular disease. Here we provide a unifying concept where oxidative stress is a common mediator underlying pathophysiologic processes in hypertension. We focus on some novel concepts whereby ROS influence vascular function, aldosterone/mineralocorticoid actions, and immunoinflammation, all important processes contributing to the development of hypertension.
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Affiliation(s)
- Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, Scotland, United Kingdom.
| | - Francisco J Rios
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Rhéure Alves-Lopes
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Karla B Neves
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Livia L Camargo
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Augusto C Montezano
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, Scotland, United Kingdom
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48
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Tan YC, Abdul Sattar M, Ahmeda AF, Abdul Karim Khan N, Murugaiyah V, Ahmad A, Hassan Z, Kaur G, Abdulla MH, Johns EJ. Apocynin and catalase prevent hypertension and kidney injury in Cyclosporine A-induced nephrotoxicity in rats. PLoS One 2020; 15:e0231472. [PMID: 32298299 PMCID: PMC7161975 DOI: 10.1371/journal.pone.0231472] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/24/2020] [Indexed: 01/17/2023] Open
Abstract
Oxidative stress is involved in the pathogenesis of a number of diseases including hypertension and renal failure. There is enhanced expression of nicotinamide adenine dinucleotide (NADPH oxidase) and therefore production of hydrogen peroxide (H2O2) during renal disease progression. This study investigated the effect of apocynin, an NADPH oxidase inhibitor and catalase, an H2O2 scavenger on Cyclosporine A (CsA) nephrotoxicity in Wistar-Kyoto rats. Rats received CsA (25mg/kg/day via gavage) and were assigned to vehicle, apocynin (2.5mmol/L p.o.), catalase (10,000U/kg/day i.p.) or apocynin plus catalase for 14 days. Renal functional and hemodynamic parameters were measured every week, and kidneys were harvested at the end of the study for histological and NADPH oxidase 4 (NOX4) assessment. Oxidative stress markers and blood urea nitrogen (BUN) were measured. CsA rats had higher plasma malondialdehyde (by 340%) and BUN (by 125%), but lower superoxide dismutase and total antioxidant capacity (by 40%, all P<0.05) compared to control. CsA increased blood pressure (by 46mmHg) and decreased creatinine clearance (by 49%, all P<0.05). Treatment of CsA rats with apocynin, catalase, and their combination decreased blood pressure to near control values (all P<0.05). NOX4 mRNA activity was higher in the renal tissue of CsA rats by approximately 63% (P<0.05) compared to controls but was reduced in apocynin (by 64%), catalase (by 33%) and combined treatment with apocynin and catalase (by 84%) compared to untreated CsA rats. Treatment of CsA rats with apocynin, catalase, and their combination prevented hypertension and restored renal functional parameters and tissue Nox4 expression in this model. NADPH inhibition and H2O2 scavenging is an important therapeutic strategy during CsA nephrotoxicity and hypertension.
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Affiliation(s)
- Yong Chia Tan
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden, Penang, Malaysia
- * E-mail:
| | - Munavvar Abdul Sattar
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden, Penang, Malaysia
| | - Ahmad F. Ahmeda
- Basic Medical Science Department, College of Medicine, Qatar University, Doha, Qatar
| | | | | | - Ashfaq Ahmad
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Virginia, Richmond, United States of America
- Department of Pharmacy, Abasyn University Islamabad Campus, Islamabad, Pakistan
| | - Zurina Hassan
- Centre for Drug Research, Universiti Sains Malaysia, Penang, Malaysia
| | - Gurjeet Kaur
- Institute for Molecular Medicine Research, Universiti Sains Malaysia, Penang, Malaysia
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49
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Ma H, Dong XF, Cao XR, Hei NH, Li JL, Wang YL, Kong J, Dong B. Pro-Renin Receptor Overexpression Promotes Angiotensin II-Induced Abdominal Aortic Aneurysm Formation in Apolipoprotein E-Knockout Mice. Hum Gene Ther 2020; 31:639-650. [PMID: 31992084 DOI: 10.1089/hum.2019.124] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The pro-renin receptor (PRR) is an important novel component of the renin-angiotensin (Ang) system that has multiple functions, which are not yet completely understood. In this study, we aimed to explore the effect of PRR on the formation of Ang II-induced abdominal aortic aneurysm (AAA) in apolipoprotein E-knockout mice. We used Ang II (1.44 mg/kg/day) infusion to induce AAA followed by a treatment of saline, telmisartan, no treatment, Ad-EGFP, Ad-PRR, or Ad-PRR plus telmisartan. The incidence of AAA was 35%, 60%, 65%, 90%, and 55% in the Telmisartan, Vehicle, Ad-EGFP, Ad-PRR, and Ad-PRR+Telmisartan groups, respectively. Compared with the Vehicle and Ad-EGFP groups, PRR overexpression markedly increased macrophage infiltration; levels of proinflammatory cytokines, including monocyte chemoattractant protein-1 (MCP-1) and tumor necrosis factor-α (TNF-α); the expression and activity of MMP2 and MMP9; NOX2 and NOX4 protein and mRNA expression; nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity; extracellular-signal-regulated kinase (ERK) and P38MAPK expression; but decreased smooth muscle cells content in AAA. However, telmisartan reversed the adverse effects of PRR. In addition, ERK inhibitor PD98059 eliminated the acceleration of Ang II-induced AAA formation by PRR, and coadministration of telmisartan and PD98059 further abolished the adverse effects of PRR on Ang II-induced AAA formation. Thus, PRR plays an important role in the pathological development of AAA via both Ang II-dependent and Ang II-independent activation of ERK pathways. These results suggest that inhibition of PRR activation may be a promising approach to the treatment of AAA.
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Affiliation(s)
- Hui Ma
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Xue-Fei Dong
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.,University of Hull, Hull, United Kingdom
| | - Xin-Ran Cao
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Nai-Hao Hei
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jun-Long Li
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Yu-Lin Wang
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jing Kong
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Bo Dong
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.,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, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
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50
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Obradovic M, Essack M, Zafirovic S, Sudar‐Milovanovic E, Bajic VP, Van Neste C, Trpkovic A, Stanimirovic J, Bajic VB, Isenovic ER. Redox control of vascular biology. Biofactors 2020; 46:246-262. [PMID: 31483915 PMCID: PMC7187163 DOI: 10.1002/biof.1559] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/14/2019] [Indexed: 12/12/2022]
Abstract
Redox control is lost when the antioxidant defense system cannot remove abnormally high concentrations of signaling molecules, such as reactive oxygen species (ROS). Chronically elevated levels of ROS cause oxidative stress that may eventually lead to cancer and cardiovascular and neurodegenerative diseases. In this review, we focus on redox effects in the vascular system. We pay close attention to the subcompartments of the vascular system (endothelium, smooth muscle cell layer) and give an overview of how redox changes influence those different compartments. We also review the core aspects of redox biology, cardiovascular physiology, and pathophysiology. Moreover, the topic-specific knowledgebase DES-RedoxVasc was used to develop two case studies, one focused on endothelial cells and the other on the vascular smooth muscle cells, as a starting point to possibly extend our knowledge of redox control in vascular biology.
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Affiliation(s)
- Milan Obradovic
- Laboratory of Radiobiology and Molecular GeneticsVinca Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
| | - Magbubah Essack
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE)ThuwalKingdom of Saudi Arabia
| | - Sonja Zafirovic
- Laboratory of Radiobiology and Molecular GeneticsVinca Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
| | - Emina Sudar‐Milovanovic
- Laboratory of Radiobiology and Molecular GeneticsVinca Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
| | - Vladan P. Bajic
- Laboratory of Radiobiology and Molecular GeneticsVinca Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
| | - Christophe Van Neste
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE)ThuwalKingdom of Saudi Arabia
| | - Andreja Trpkovic
- Laboratory of Radiobiology and Molecular GeneticsVinca Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
| | - Julijana Stanimirovic
- Laboratory of Radiobiology and Molecular GeneticsVinca Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
| | - Vladimir B. Bajic
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE)ThuwalKingdom of Saudi Arabia
| | - Esma R. Isenovic
- Laboratory of Radiobiology and Molecular GeneticsVinca Institute of Nuclear Sciences, University of BelgradeBelgradeSerbia
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