101
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Hay M, Barnes C, Huentelman M, Brinton R, Ryan L. Hypertension and Age-Related Cognitive Impairment: Common Risk Factors and a Role for Precision Aging. Curr Hypertens Rep 2020; 22:80. [PMID: 32880739 PMCID: PMC7467861 DOI: 10.1007/s11906-020-01090-w] [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] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Purpose of Review Precision Aging® is a novel concept that we have recently employed to describe how the model of precision medicine can be used to understand and define the multivariate risks that drive age-related cognitive impairment (ARCI). Hypertension and cardiovascular disease are key risk factors for both brain function and cognitive aging. In this review, we will discuss the common mechanisms underlying the risk factors for both hypertension and ARCI and how the convergence of these mechanisms may be amplified in an individual to drive changes in brain health and accelerate cognitive decline. Recent Findings Currently, our cognitive health span does not match our life span. Age-related cognitive impairment and preventing and treating ARCI will require an in-depth understanding of the interrelated risk factors, including individual genetic profiles, that affect brain health and brain aging. Hypertension and cardiovascular disease are important risk factors for ARCI. And, many of the risk factors for developing hypertension, such as diabetes, smoking, stress, viral infection, and age, are shared with the development of ARCI. We must first understand the mechanisms common to the converging risk factors in hypertension and ARCI and then design person-specific therapies to optimize individual brain health. Summary The understanding of the convergence of shared risk factors between hypertension and ARCI is required to develop individualized interventions to optimize brain health across the life span. We will conclude with a discussion of possible steps that may be taken to decrease ARCI and optimize an individual’s cognitive life span.
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Affiliation(s)
- Meredith Hay
- Department of Physiology, University of Arizona, 1501 N Campbell Rd, Room 4103, Tucson, AZ, 85724, USA.
- Psychology Department, University of Arizona, Tucson, AZ, USA.
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA.
| | - Carol Barnes
- Psychology Department, University of Arizona, Tucson, AZ, USA
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA
| | - Matt Huentelman
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA
- Neurogenomics Division, TGen, Phoenix, AZ, USA
| | - Roberta Brinton
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA
- Center for Innovative Brain Sciences, University of Arizona, Tucson, AZ, USA
| | - Lee Ryan
- Psychology Department, University of Arizona, Tucson, AZ, USA
- Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA
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102
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Summers ME, Richmond BW, Menon S, Sheridan RM, Kropski JA, Majka SA, Taketo MM, Bastarache JA, West JD, De Langhe S, Geraghty P, Klemm DJ, Chu HW, Friedman RS, Tao YK, Foronjy RF, Majka SM. Resident mesenchymal vascular progenitors modulate adaptive angiogenesis and pulmonary remodeling via regulation of canonical Wnt signaling. FASEB J 2020; 34:10267-10285. [PMID: 32533805 PMCID: PMC7496763 DOI: 10.1096/fj.202000629r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 12/16/2022]
Abstract
Adaptive angiogenesis is necessary for tissue repair, however, it may also be associated with the exacerbation of injury and development of chronic disease. In these studies, we demonstrate that lung mesenchymal vascular progenitor cells (MVPC) modulate adaptive angiogenesis via lineage trace, depletion of MVPC, and modulation of β-catenin expression. Single cell sequencing confirmed MVPC as multipotential vascular progenitors, thus, genetic depletion resulted in alveolar simplification with reduced adaptive angiogenesis. Following vascular endothelial injury, Wnt activation in MVPC was sufficient to elicit an emphysema-like phenotype characterized by increased MLI, fibrosis, and MVPC driven adaptive angiogenesis. Lastly, activation of Wnt/β-catenin signaling skewed the profile of human and murine MVPC toward an adaptive phenotype. These data suggest that lung MVPC drive angiogenesis in response to injury and regulate the microvascular niche as well as subsequent distal lung tissue architecture via Wnt signaling.
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Affiliation(s)
- Megan E. Summers
- Department of MedicineDivision of Pulmonary, Critical Care & Sleep MedicineNational Jewish HealthDenverCOUSA
| | - Bradley W. Richmond
- Department of MedicineDivision of Allergy, Pulmonary and Critical Care Medicine or CardiologyVanderbilt University Medical CenterNashvilleTNUSA
| | - Swapna Menon
- Pulmonary Vascular Research Institute KochiAnalyzeDat Consulting ServicesErnakulamIndia
| | - Ryan M. Sheridan
- Department of Biochemistry and Molecular GeneticsRNA Bioscience InitiativeUniversity of Colorado School of MedicineAuroraCOUSA
| | - Jonathan A. Kropski
- Department of MedicineDivision of Allergy, Pulmonary and Critical Care Medicine or CardiologyVanderbilt University Medical CenterNashvilleTNUSA
| | - Sarah A. Majka
- Department of MedicineDivision of Pulmonary, Critical Care & Sleep MedicineNational Jewish HealthDenverCOUSA
| | - M. Mark Taketo
- Division of Experimental TherapeuticsGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Julie A. Bastarache
- Department of MedicineDivision of Allergy, Pulmonary and Critical Care Medicine or CardiologyVanderbilt University Medical CenterNashvilleTNUSA
| | - James D. West
- Department of MedicineDivision of Allergy, Pulmonary and Critical Care Medicine or CardiologyVanderbilt University Medical CenterNashvilleTNUSA
| | | | - Patrick Geraghty
- Division of Pulmonary and Critical Care MedicineSUNY Downstate Medical CenterBrooklynNYUSA
| | - Dwight J. Klemm
- Department of Medicine, Pulmonary & Critical Care MedicineUniversity of ColoradoAuroraCOUSA
- Gates Center for Regenerative Medicine and Stem Cell BiologyUniversity of ColoradoAuroraCOUSA
| | - Hong Wei Chu
- Department of MedicineDivision of Pulmonary, Critical Care & Sleep MedicineNational Jewish HealthDenverCOUSA
| | | | - Yuankai K. Tao
- Pulmonary Vascular Research Institute KochiAnalyzeDat Consulting ServicesErnakulamIndia
| | - Robert F. Foronjy
- Division of Pulmonary and Critical Care MedicineSUNY Downstate Medical CenterBrooklynNYUSA
| | - Susan M. Majka
- Department of MedicineDivision of Pulmonary, Critical Care & Sleep MedicineNational Jewish HealthDenverCOUSA
- Gates Center for Regenerative Medicine and Stem Cell BiologyUniversity of ColoradoAuroraCOUSA
- Department of Biomedical ResearchNational Jewish HealthDenverCOUSA
- Biomedical EngineeringVanderbilt UniversityNashvilleTNUSA
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103
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Shao C, Qi H, Fang Q, Tu J, Li Q, Wang L. Smoking history and its relationship with comorbidities in patients with obstructive sleep apnea. Tob Induc Dis 2020; 18:56. [PMID: 32641922 PMCID: PMC7336864 DOI: 10.18332/tid/123429] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/26/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Current knowledge on the correlation between smoking and comorbidities associated with obstructive sleep apnea (OSA) is limited. This study evaluated the smoking history of OSA patients and analyzed the association between smoking and OSA comorbidities. METHODS Retrospective analysis was performed in newly diagnosed OSA patients in our hospital, a tertiary medical center, from January 2016 to December 2019. In all, 1021 patients were enrolled and divided into two groups, non-smokers (n=796) and current/former smokers (n=225), in order to compare their clinical manifestations and polysomnographic results and to analyze the association between smoking and comorbidities. RESULTS Compared with the non-smokers, the current/former smokers had higher Epworth sleepiness scale (ESS) scores (9.3 ± 4.0 vs 8.5 ± 5.1; p<0.05), longer sleep latency (SL) [20.5 (12.3-39.3) vs 18.5 (10.0-34.0) minutes; p<0.05], and a lower nocturnal mean oxygen saturation (91.8 ± 3.6% vs 92.8 ± 3.4%; p<0.001). There was no significant difference in the apnea-hypopnea index (AHI) between the two groups. OSA patients with a history of smoking had significantly increased risk of hypertension (OR=2.09; 95% CI: 1.46- 3.01), chronic obstructive pulmonary disease (COPD) (OR=9.80; 95% CI: 4.73-20.33), gastroesophageal reflux disease (GERD) (OR=1.97; 95% CI: 1.19-3.27), and chronic pharyngitis (OR=1.83; 95% CI: 1.32-2.54). CONCLUSIONS No significant association was found between previous smoking history and current OSA severity. OSA patients with a history of smoking had an increased risk of hypertension, COPD, GERD, and chronic pharyngitis.
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Affiliation(s)
- Chuan Shao
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, China.,Department of Special Procurement Ward, The First Affiliated Hospital of Soochow University, Suzhou, China.,Department of General Practice, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huan Qi
- Department of Special Procurement Ward, The First Affiliated Hospital of Soochow University, Suzhou, China.,Department of General Practice, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qing Fang
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Jinjing Tu
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Qianjun Li
- Sleep Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Pulmonary and Critical Care Medicine, Ningbo Yinzhou No. 2 Hospital, Ningbo, China
| | - Ling Wang
- Department of Special Procurement Ward, The First Affiliated Hospital of Soochow University, Suzhou, China.,Department of General Practice, The First Affiliated Hospital of Soochow University, Suzhou, China
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104
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Oxidative Stress and New Pathogenetic Mechanisms in Endothelial Dysfunction: Potential Diagnostic Biomarkers and Therapeutic Targets. J Clin Med 2020; 9:jcm9061995. [PMID: 32630452 PMCID: PMC7355625 DOI: 10.3390/jcm9061995] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/15/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases (CVD), including heart and pathological circulatory conditions, are the world's leading cause of mortality and morbidity. Endothelial dysfunction involved in CVD pathogenesis is a trigger, or consequence, of oxidative stress and inflammation. Endothelial dysfunction is defined as a diminished production/availability of nitric oxide, with or without an imbalance between endothelium-derived contracting, and relaxing factors associated with a pro-inflammatory and prothrombotic status. Endothelial dysfunction-induced phenotypic changes include up-regulated expression of adhesion molecules and increased chemokine secretion, leukocyte adherence, cell permeability, low-density lipoprotein oxidation, platelet activation, and vascular smooth muscle cell proliferation and migration. Inflammation-induced oxidative stress results in an increased accumulation of reactive oxygen species (ROS), mainly derived from mitochondria. Excessive ROS production causes oxidation of macromolecules inducing cell apoptosis mediated by cytochrome-c release. Oxidation of mitochondrial cardiolipin loosens cytochrome-c binding, thus, favoring its cytosolic release and activation of the apoptotic cascade. Oxidative stress increases vascular permeability, promotes leukocyte adhesion, and induces alterations in endothelial signal transduction and redox-regulated transcription factors. Identification of new endothelial dysfunction-related oxidative stress markers represents a research goal for better prevention and therapy of CVD. New-generation therapeutic approaches based on carriers, gene therapy, cardiolipin stabilizer, and enzyme inhibitors have proved useful in clinical practice to counteract endothelial dysfunction. Experimental studies are in continuous development to discover new personalized treatments. Gene regulatory mechanisms, implicated in endothelial dysfunction, represent potential new targets for developing drugs able to prevent and counteract CVD-related endothelial dysfunction. Nevertheless, many challenges remain to overcome before these technologies and personalized therapeutic strategies can be used in CVD management.
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105
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El-Mahdy MA, Abdelghany TM, Hemann C, Ewees MG, Mahgoup EM, Eid MS, Shalaan MT, Alzarie YA, Zweier JL. Chronic cigarette smoke exposure triggers a vicious cycle of leukocyte and endothelial-mediated oxidant stress that results in vascular dysfunction. Am J Physiol Heart Circ Physiol 2020; 319:H51-H65. [PMID: 32412791 DOI: 10.1152/ajpheart.00657.2019] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although there is a strong association between cigarette smoking exposure (CSE) and vascular endothelial dysfunction (VED), the underlying mechanisms by which CSE triggers VED remain unclear. Therefore, studies were performed to define these mechanisms using a chronic mouse model of cigarette smoking (CS)-induced cardiovascular disease mirroring that in humans. C57BL/6 male mice were subjected to CSE for up to 48 wk. CSE impaired acetylcholine (ACh)-induced relaxation of aortic and mesenteric segments and triggered hypertension, with mean arterial blood pressure at 32 and 48 wk of exposure of 122 ± 6 and 135 ± 5 mmHg compared with 99 ± 4 and 102 ± 6 mmHg, respectively, in air-exposed mice. CSE led to monocyte activation with superoxide generation in blood exiting the pulmonary circulation. Macrophage infiltration with concomitant increase in NADPH oxidase subunits p22phox and gp91phox was seen in aortas of CS-exposed mice at 16 wk, with further increase out to 48 wk. Associated with this, increased superoxide production was detected that decreased with Nox inhibition. Tetrahydrobiopterin was progressively depleted in CS-exposed mice but not in air-exposed controls, resulting in endothelial nitric oxide synthase (eNOS) uncoupling and secondary superoxide generation. CSE led to a time-dependent decrease in eNOS and Akt expression and phosphorylation. Overall, CSE induces vascular monocyte infiltration with increased NADPH oxidase-mediated reactive oxygen species generation and depletes the eNOS cofactor tetrahydrobiopterin, uncoupling eNOS and triggering a vicious cycle of oxidative stress with VED and hypertension. Our study provides important insights toward understanding the process by which smoking contributes to the genesis of cardiovascular disease and identifies biomarkers predictive of disease.NEW & NOTEWORTHY In a chronic model of smoking-induced cardiovascular disease, we define underlying mechanisms of smoking-induced vascular endothelial dysfunction (VED). Smoking exposure triggered VED and hypertension and led to vascular macrophage infiltration with concomitant increase in superoxide and NADPH oxidase levels as early as 16 wk of exposure. This oxidative stress was accompanied by tetrahydrobiopterin depletion, resulting in endothelial nitric oxide synthase uncoupling with further superoxide generation triggering a vicious cycle of oxidative stress and VED.
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Affiliation(s)
- Mohamed A El-Mahdy
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Tamer M Abdelghany
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio.,Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Craig Hemann
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Mohamed G Ewees
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio.,Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Elsayed M Mahgoup
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio.,Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Mahmoud S Eid
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio.,Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Mahmoud T Shalaan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio.,Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Yasmin A Alzarie
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio.,Department of Pharmacology and Toxicology, College of Pharmacy, Helwan University, National Organization of Drug Control and Research, Cairo, Egypt
| | - Jay L Zweier
- Division of Cardiovascular Medicine, Department of Internal Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio
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106
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New Insights into the Implication of Mitochondrial Dysfunction in Tissue, Peripheral Blood Mononuclear Cells, and Platelets during Lung Diseases. J Clin Med 2020; 9:jcm9051253. [PMID: 32357474 PMCID: PMC7287602 DOI: 10.3390/jcm9051253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/16/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022] Open
Abstract
Lung diseases such as chronic obstructive pulmonary disease, asthma, pulmonary arterial hypertension, or idiopathic pulmonary fibrosis are major causes of morbidity and mortality. Complex, their physiopathology is multifactorial and includes lung mitochondrial dysfunction and enhanced reactive oxygen species (ROS) release, which deserves increased attention. Further, and importantly, circulating blood cells (peripheral blood mononuclear cells-(PBMCs) and platelets) likely participate in these systemic diseases. This review presents the data published so far and shows that circulating blood cells mitochondrial oxidative capacity are likely to be reduced in chronic obstructive pulmonary disease (COPD), but enhanced in asthma and pulmonary arterial hypertension in a context of increased oxidative stress. Besides such PBMCs or platelets bioenergetics modifications, mitochondrial DNA (mtDNA) changes have also been observed in patients. These new insights open exciting challenges to determine their role as biomarkers or potential guide to a new therapeutic approach in lung diseases.
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107
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Ma GY, Cai L, Fan LM, Zhao M, Cui WL, Yang JT, Golden AR. Association of socioeconomic factors and prevalence of hypertension with sleep disorder among the elderly in rural southwest China. Sleep Med 2020; 71:106-110. [PMID: 32505023 DOI: 10.1016/j.sleep.2020.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES This study examines the distribution of sleep disorder prevalence across socioeconomic status (SES) and investigates the relationship between sleep disorders and hypertension among southwest China's rural older adult population. METHODS A cross-sectional survey was conducted in rural Yunnan Province, China from 2017 to 2018, consisting of 4833 consenting participants aged ≥60 years. Each participant completed a structured interview and had their blood pressure measured. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). Multivariate logistic regression was used to model variations in prevalence of sleep disorders and hypertension. RESULTS In the study population, the prevalence rates of sleep disorders and hypertension were 46.5% and 50.3%, respectively. Women had higher prevalence of both chronic illnesses (53.4% vs. 38.7%, 53.1% vs. 47.6%, P < 0.01). After adjusting for age, sex, and residential status, older adults of minority ethnicity had a higher prevalence of sleep disorders than the Han ethnic majority (P < 0.01). Attainment of higher levels of education and lower annual household income were also associated with a greater risk of sleep disorders (P < 0.01). Further, logistic regression analysis indicated that older adults with sleep disorders had a greater risk of being hypertensive (P < 0.01). CONCLUSIONS Sleep disorders are highly prevalent in rural southwest China. Future interventions to improve sleep quality would benefit from tailoring to address individual SES. Improving sleep quality profoundly reduces prevalence of hypertension.
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Affiliation(s)
- Guo-Yu Ma
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming 650500, China.
| | - Le Cai
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming 650500, China.
| | - Lu-Ming Fan
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming 650500, China.
| | - Min Zhao
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming 650500, China; The Third Affiliated Hospital of Kunming Medical University, China.
| | - Wen-Long Cui
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming 650500, China.
| | - Jia-Tian Yang
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming 650500, China.
| | - Allison Rabkin Golden
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming 650500, China.
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108
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Yang Y, Li T, Li Z, Liu N, Yan Y, Liu B. Role of Mitophagy in Cardiovascular Disease. Aging Dis 2020; 11:419-437. [PMID: 32257551 PMCID: PMC7069452 DOI: 10.14336/ad.2019.0518] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/18/2019] [Indexed: 12/17/2022] Open
Abstract
Cardiovascular disease is the leading cause of mortality worldwide, and mitochondrial dysfunction is the primary contributor to these disorders. Recent studies have elaborated on selective autophagy-mitophagy, which eliminates damaged and dysfunctional mitochondria, stabilizes mitochondrial structure and function, and maintains cell survival and growth. Numerous recent studies have reported that mitophagy plays an important role in the pathogenesis of various cardiovascular diseases. This review summarizes the mechanisms underlying mitophagy and advancements in studies on the role of mitophagy in cardiovascular disease.
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Affiliation(s)
- Yibo Yang
- Department of Cardiology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Tianyi Li
- Department of Cardiology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Zhibo Li
- Department of Cardiology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Ning Liu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Youyou Yan
- Department of Cardiology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Bin Liu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun 130041, China
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109
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Ho H, Guo H, Means S, Tang J, Hunter P. Maternal Smoking Induced Cardiovascular Risks in Fetuses: How Can in silico Models Help? Front Bioeng Biotechnol 2020; 8:97. [PMID: 32140462 PMCID: PMC7042462 DOI: 10.3389/fbioe.2020.00097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 02/03/2020] [Indexed: 12/30/2022] Open
Affiliation(s)
- Harvey Ho
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - Hongchao Guo
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, United States
| | - Shawn Means
- School of Natural and Computational Sciences, Massey University, Auckland, New Zealand
| | - Jing Tang
- Chongqing Health Center for Women and Children, Chongqing, China
| | - Peter Hunter
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
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110
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Affiliation(s)
- Francis J Miller
- From the Department of Medicine, Duke University and Veterans Affairs Medical Center, Durham, NC
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111
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Liu J, Hu S, Zhu B, Shao S, Yuan L. Grape seed procyanidin suppresses inflammation in cigarette smoke-exposed pulmonary arterial hypertension rats by the PPAR-γ/COX-2 pathway. Nutr Metab Cardiovasc Dis 2020; 30:347-354. [PMID: 31791634 DOI: 10.1016/j.numecd.2019.09.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/27/2019] [Accepted: 09/19/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND AIM Pulmonary arterial hypertension (PAH) is characterized by pulmonary vascular remodeling, which is mainly caused by inflammation. Inhibiting inflammation can relieve PAH. Grape seed procyanidin (GSP) possesses remarkable anti-inflammatory property and vascular protective function. In this experiment, we verified the anti-inflammatory property of GSP in cigarette smoke-exposed PAH rats and revealed its molecular mechanism. METHODS AND RESULTS In vivo, 45 Sprague Dawley (SD) rats were divided into 5 groups randomly, treated with normoxia/cigarette smoke (CS)/GSP + CS/CS + solvent/GSP. After GSP + CS administration, a decrease in mPAP, PVR, RVHI, WT%, and WA% was detected in the rats as compared to those treated with CS. In vitro, the proliferation of pulmonary arterial smooth muscle cells (PASMCs) caused by cigarette smoke extract (CSE) was effectively attenuated with GSP + CSE administration. Furthermore, GSP significantly increased the expression of peroxisome proliferator-activated receptor γ (PPAR-γ) together with the lowered expression level of cyclooxygenase 2 (COX-2) in PASMCs co-incubated with CSE. CONCLUSION These findings indicate that GSP ameliorates inflammation by the PPAR-γ/COX-2 pathway and finally inhibits the proliferation of PASMCs, which leads to pulmonary vascular remodeling.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- Cell Proliferation/drug effects
- Cells, Cultured
- Cigarette Smoking
- Cyclooxygenase 2/metabolism
- Disease Models, Animal
- Grape Seed Extract/pharmacology
- Inflammation/enzymology
- Inflammation/etiology
- Inflammation/physiopathology
- Inflammation/prevention & control
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- PPAR gamma/metabolism
- Proanthocyanidins/pharmacology
- Pulmonary Arterial Hypertension/drug therapy
- Pulmonary Arterial Hypertension/enzymology
- Pulmonary Arterial Hypertension/etiology
- Pulmonary Arterial Hypertension/physiopathology
- Pulmonary Artery/drug effects
- Pulmonary Artery/enzymology
- Pulmonary Artery/pathology
- Rats, Sprague-Dawley
- Signal Transduction
- Vascular Remodeling/drug effects
- Ventricular Function, Right/drug effects
- Ventricular Remodeling/drug effects
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Affiliation(s)
- Jiantao Liu
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, PR China
| | - Songli Hu
- The Renji College, Wenzhou Medical University, Wenzhou, PR China
| | - Bingqing Zhu
- The Renji College, Wenzhou Medical University, Wenzhou, PR China
| | - Siming Shao
- The Renji College, Wenzhou Medical University, Wenzhou, PR China
| | - Linbo Yuan
- Department of Physiology, Basic Medical Science School, Wenzhou Medical University, Wenzhou, PR China.
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112
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Scuruchi M, Potì F, Rodríguez-Carrio J, Campo GM, Mandraffino G. Biglycan and atherosclerosis: Lessons from high cardiovascular risk conditions. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158545. [PMID: 31672572 DOI: 10.1016/j.bbalip.2019.158545] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/26/2019] [Accepted: 10/17/2019] [Indexed: 02/07/2023]
Abstract
Atherosclerosis (ATH) is a chronic, dynamic, evolutive process involving morphological and structural subversion of artery walls, leading to the formation of atherosclerotic plaques. ATH generally initiates during the childhood, occurring as a result of a number of changes in the intima tunica and in the media of arteries. A key event occurring during the pathobiology of ATH is the accumulation of lipoproteins in the sub-intimal spaces mediated by extracellular matrix (ECM) molecules, especially by the chondroitin sulfate/dermatan sulfate (CS/DS) -containing proteoglycans (CS/DSPGs). Among them, the proteoglycan biglycan (BGN) is critically involved in the onset and progression of ATH and evidences show that BGN represents the missing link between the pro-atherogenic status induced by both traditional and non-traditional cardiovascular risk factors and the development and progression of vascular damage. In the light of these findings, the role of BGN in dyslipidemia, hypertension, cigarette smoking, diabetes, chronic kidney disease and inflammatory status is briefly analyzed and discussed in order to shed new light on the underlying mechanisms governing the association between BGN and ATH.
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Affiliation(s)
- Michele Scuruchi
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Francesco Potì
- Department of Medicine and Surgery-Unit of Neurosciences, University of Parma, Parma, Italy
| | - Javier Rodríguez-Carrio
- Area of Immunology, Department of Functional Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain; Instituto de Investigación Sanitaria Del Principado de Asturias (ISPA), Oviedo, Spain; Bone and Mineral Research Unit, Instituto Reina Sofía de Investigación Nefrológica, REDinREN Del ISCIII, Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | - Giuseppe Mandraffino
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.
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113
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Dikalova AE, Pandey A, Xiao L, Arslanbaeva L, Sidorova T, Lopez MG, Billings FT, Verdin E, Auwerx J, Harrison DG, Dikalov SI. Mitochondrial Deacetylase Sirt3 Reduces Vascular Dysfunction and Hypertension While Sirt3 Depletion in Essential Hypertension Is Linked to Vascular Inflammation and Oxidative Stress. Circ Res 2019; 126:439-452. [PMID: 31852393 DOI: 10.1161/circresaha.119.315767] [Citation(s) in RCA: 213] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
RATIONALE Hypertension represents a major risk factor for stroke, myocardial infarction, and heart failure and affects 30% of the adult population. Mitochondrial dysfunction contributes to hypertension, but specific mechanisms are unclear. The mitochondrial deacetylase Sirt3 (Sirtuin 3) is critical in the regulation of metabolic and antioxidant functions which are associated with hypertension, and cardiovascular disease risk factors diminish Sirt3 level. OBJECTIVE We hypothesized that reduced Sirt3 expression contributes to vascular dysfunction in hypertension, but increased Sirt3 protects vascular function and decreases hypertension. METHODS AND RESULTS To test the therapeutic potential of targeting Sirt3 expression, we developed new transgenic mice with global Sirt3OX (Sirt3 overexpression), which protects from endothelial dysfunction, vascular oxidative stress, and hypertrophy and attenuates Ang II (angiotensin II) and deoxycorticosterone acetate-salt induced hypertension. Global Sirt3 depletion in Sirt3-/- mice results in oxidative stress due to hyperacetylation of mitochondrial superoxide dismutase (SOD2), increases HIF1α (hypoxia-inducible factor-1), reduces endothelial cadherin, stimulates vascular hypertrophy, increases vascular permeability and vascular inflammation (p65, caspase 1, VCAM [vascular cell adhesion molecule-1], ICAM [intercellular adhesion molecule-1], and MCP1 [monocyte chemoattractant protein 1]), increases inflammatory cell infiltration in the kidney, reduces telomerase expression, and accelerates vascular senescence and age-dependent hypertension; conversely, increased Sirt3 expression in Sirt3OX mice prevents these deleterious effects. The clinical relevance of Sirt3 depletion was confirmed in arterioles from human mediastinal fat in patients with essential hypertension showing a 40% decrease in vascular Sirt3, coupled with Sirt3-dependent 3-fold increases in SOD2 acetylation, NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) activity, VCAM, ICAM, and MCP1 levels in hypertensive subjects compared with normotensive subjects. CONCLUSIONS We suggest that Sirt3 depletion in hypertension promotes endothelial dysfunction, vascular hypertrophy, vascular inflammation, and end-organ damage. Our data support a therapeutic potential of targeting Sirt3 expression in vascular dysfunction and hypertension.
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Affiliation(s)
- Anna E Dikalova
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Arvind Pandey
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Liang Xiao
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Liaisan Arslanbaeva
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Tatiana Sidorova
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Marcos G Lopez
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Frederic T Billings
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Eric Verdin
- Buck Institute for Research on Aging, Novato, CA (E.V.)
| | - Johan Auwerx
- Ecole Polytechnique Fédérale de Lausanne, Switzerland (J.A.)
| | - David G Harrison
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
| | - Sergey I Dikalov
- From the Vanderbilt University Medical Center, Nashville, TN (A.E.D., A.P., L.X., L.A., T.S., M.G.L., F.T.B., D.G.H., S.I.D.)
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114
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Khojah HMJ, Ahmed SA. Comparative assessment of individual RONS in serum of smokers compared with non-smokers and their correlation with the lipid profile and antioxidant status. J Int Med Res 2019; 47:6223-6234. [PMID: 31640448 PMCID: PMC7045672 DOI: 10.1177/0300060519882563] [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] [Indexed: 11/24/2022] Open
Abstract
Objective Cigarette smoking generates free radicals, such as reactive oxygen and nitrogen species (RONS) that contribute to many diseases. The aim of this study was to compare the levels of individual RONS in serum from smokers and non-smokers, and to examine their impact on lipid profiles and the endogenous antioxidant status, which is represented by vitamins C and E. Methods Ninety-four healthy Egyptian volunteers (48 smokers and 46 non-smokers) were enrolled. Blood samples were collected and analysed for common haematological tests, lipid profiles, and serum antioxidants. Six reactive oxygen species and three reactive nitrogen species were measured. Results A significant increase in radical levels was observed, as well as significant increases in haemoglobin (Hb), haematocrit, platelet count, total cholesterol, triglycerides, low-density lipoprotein cholesterol, and very low-density lipoprotein cholesterol in smokers compared with non-smokers. In contrast, high-density lipoprotein cholesterol was significantly reduced in smokers compared with non-smokers. A moderate negative correlation was found between serum levels of vitamins C and E and O2–•, HO•, H2O2, NO•, and ONO•, reflecting a negative impact of elevated RONS levels on the endogenous antioxidant status. Conclusion These results may increase our understanding of the pathological role of smoking in several diseases.
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Affiliation(s)
- Hani MJ Khojah
- Department of Clinical and Hospital Pharmacy, College of Pharmacy, Taibah University, Medinah, Saudi Arabia
| | - Sameh A Ahmed
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Medinah, Saudi Arabia
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
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115
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Wavreil FD, Heggland SJ. Cinnamon-flavored electronic cigarette liquids and aerosols induce oxidative stress in human osteoblast-like MG-63 cells. Toxicol Rep 2019; 7:23-29. [PMID: 31871899 PMCID: PMC6909334 DOI: 10.1016/j.toxrep.2019.11.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/27/2019] [Accepted: 11/28/2019] [Indexed: 12/26/2022] Open
Abstract
As noncombustible nicotine delivery devices, electronic cigarettes (e-cigarettes) are the most popular tobacco product among youth. The widespread popularity of e-cigarettes combined with possible health consequences suggest a need to further research health hazards associated with e-cigarette use. Since conventional tobacco use is a risk factor for osteoporosis, this study investigates the impact of nicotine-free, cinnamon-flavored e-cigarette liquid (e-liquid) on bone-forming osteoblasts compared to flavorless e-liquid. Human tumor-derived osteoblast-like MG-63 cells were exposed for 24 h or 48 h to 0.0.4 %, 0.04 %, 0.4 % or 1 % of unvaped e-liquid or 0.0025 %, 0.025 %, 0.25 %, 1 % or 2.5 % of aerosol condensate in addition to a culture medium only control. Changes in cell viability were assessed by MTT assay, and the expression of a key bone protein, collagen type I, was analyzed by immunofluorescence. Production of reactive oxygen species (ROS) was detected by fluorometry to assess oxidative stress. Cell viability decreased in a dose-dependent manner, and ROS production increased, which was most pronounced with cinnamon-flavored e-liquids. There were no detectable changes in collagen type I protein following exposure to any of the aerosol condensates. This study demonstrates osteoblast-like cells are sensitive to both e-liquids and aerosol condensates and suggests the cytotoxicity of cinnamon-flavored e-liquids might be associated with oxidative stress rather than changes in collagen type I protein expression. This in vitro study provides insight into the potential impacts of e-cigarette use on bone cells.
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Affiliation(s)
| | - Sara J. Heggland
- Department of Biology, The College of Idaho, 2112 Cleveland Blvd, Caldwell, ID, 83605, USA
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116
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Zong D, Liu X, Li J, Ouyang R, Chen P. The role of cigarette smoke-induced epigenetic alterations in inflammation. Epigenetics Chromatin 2019; 12:65. [PMID: 31711545 PMCID: PMC6844059 DOI: 10.1186/s13072-019-0311-8] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 10/23/2019] [Indexed: 12/19/2022] Open
Abstract
Background Exposure to cigarette smoke (CS) is a major threat to human health worldwide. It is well established that smoking increases the risk of respiratory diseases, cardiovascular diseases and different forms of cancer, including lung, liver, and colon. CS-triggered inflammation is considered to play a central role in various pathologies by a mechanism that stimulates the release of pro-inflammatory cytokines. During this process, epigenetic alterations are known to play important roles in the specificity and duration of gene transcription. Main text Epigenetic alterations include three major modifications: DNA modifications via methylation; various posttranslational modifications of histones, namely, methylation, acetylation, phosphorylation, and ubiquitination; and non-coding RNA sequences. These modifications work in concert to regulate gene transcription in a heritable fashion. The enzymes that regulate these epigenetic modifications can be activated by smoking, which further mediates the expression of multiple inflammatory genes. In this review, we summarize the current knowledge on the epigenetic alterations triggered by CS and assess how such alterations may affect smoking-mediated inflammatory responses. Conclusion The recognition of the molecular mechanisms of the epigenetic changes in abnormal inflammation is expected to contribute to the understanding of the pathophysiology of CS-related diseases such that novel epigenetic therapies may be identified in the near future.
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Affiliation(s)
- Dandan Zong
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, 410011, Hunan, China
| | - Xiangming Liu
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, 410011, Hunan, China
| | - Jinhua Li
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, 410011, Hunan, China
| | - Ruoyun Ouyang
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, 410011, Hunan, China
| | - Ping Chen
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China. .,Research Unit of Respiratory Disease, Central South University, Changsha, 410011, Hunan, China.
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Vascular Inflammation and Oxidative Stress: Major Triggers for Cardiovascular Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7092151. [PMID: 31341533 PMCID: PMC6612399 DOI: 10.1155/2019/7092151] [Citation(s) in RCA: 376] [Impact Index Per Article: 75.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/20/2019] [Indexed: 02/08/2023]
Abstract
Cardiovascular disease is a leading cause of death and reduced quality of life, proven by the latest data of the Global Burden of Disease Study, and is only gaining in prevalence worldwide. Clinical trials have identified chronic inflammatory disorders as cardiovascular risks, and recent research has revealed a contribution by various inflammatory cells to vascular oxidative stress. Atherosclerosis and cardiovascular disease are closely associated with inflammation, probably due to the close interaction of inflammation with oxidative stress. Classical therapies for inflammatory disorders have demonstrated protective effects in various models of cardiovascular disease; especially established drugs with pleiotropic immunomodulatory properties have proven beneficial cardiovascular effects; normalization of oxidative stress seems to be a common feature of these therapies. The close link between inflammation and redox balance was also supported by reports on aggravated inflammatory phenotype in the absence of antioxidant defense proteins (e.g., superoxide dismutases, heme oxygenase-1, and glutathione peroxidases) or overexpression of reactive oxygen species producing enzymes (e.g., NADPH oxidases). The value of immunomodulation for the treatment of cardiovascular disease was recently supported by large-scale clinical trials demonstrating reduced cardiovascular mortality in patients with established atherosclerotic disease when treated by highly specific anti-inflammatory therapies (e.g., using monoclonal antibodies against cytokines). Modern antidiabetic cardiovascular drugs (e.g., SGLT2 inhibitors, DPP-4 inhibitors, and GLP-1 analogs) seem to share these immunomodulatory properties and display potent antioxidant effects, all of which may explain their successful lowering of cardiovascular risk.
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