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Improta-Caria AC, Rodrigues LF, Joaquim VHA, De Sousa RAL, Fernandes T, Oliveira EM. MicroRNAs regulating signaling pathways in cardiac fibrosis: potential role of the exercise training. Am J Physiol Heart Circ Physiol 2024; 326:H497-H510. [PMID: 38063810 PMCID: PMC11219062 DOI: 10.1152/ajpheart.00410.2023] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 02/09/2024]
Abstract
Cardiovascular and metabolic diseases such as hypertension, type 2 diabetes, and obesity develop long-term fibrotic processes in the heart, promoting pathological cardiac remodeling, including after myocardial infarction, reparative fibrotic processes also occur. These processes are regulated by many intracellular signaling pathways that have not yet been completely elucidated, including those associated with microRNA (miRNA) expression. miRNAs are small RNA transcripts (18-25 nucleotides in length) that act as posttranscriptionally regulators of gene expression, inhibiting or degrading one or more target messenger RNAs (mRNAs), and proven to be involved in many biological processes such as cell cycle, differentiation, proliferation, migration, and apoptosis, directly affecting the pathophysiology of several diseases, including cardiac fibrosis. Exercise training can modulate the expression of miRNAs and it is known to be beneficial in various cardiovascular diseases, attenuating cardiac fibrosis processes. However, the signaling pathways modulated by the exercise associated with miRNAs in cardiac fibrosis were not fully understood. Thus, this review aims to analyze the expression of miRNAs that modulate signaling pathways in cardiac fibrosis processes that can be regulated by exercise training.
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Affiliation(s)
- Alex Cleber Improta-Caria
- Laboratory of Biochemistry and Molecular Biology of the Exercise, Physical Education and Sport School, University of São Paulo, São Paulo, Brazil
| | - Luis Felipe Rodrigues
- Laboratory of Biochemistry and Molecular Biology of the Exercise, Physical Education and Sport School, University of São Paulo, São Paulo, Brazil
| | - Victor Hugo Antonio Joaquim
- Laboratory of Biochemistry and Molecular Biology of the Exercise, Physical Education and Sport School, University of São Paulo, São Paulo, Brazil
| | | | - Tiago Fernandes
- Laboratory of Biochemistry and Molecular Biology of the Exercise, Physical Education and Sport School, University of São Paulo, São Paulo, Brazil
| | - Edilamar Menezes Oliveira
- Laboratory of Biochemistry and Molecular Biology of the Exercise, Physical Education and Sport School, University of São Paulo, São Paulo, Brazil
- Departments of Internal Medicine, Center for Regenerative Medicine, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States
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Improta-Caria AC, Soci ÚPR, Rodrigues LF, Fernandes T, Oliveira EM. MicroRNAs Regulating Pathophysiological Processes in Obesity: The Impact of Exercise Training. CURRENT OPINION IN PHYSIOLOGY 2023. [DOI: 10.1016/j.cophys.2023.100648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Regular Exercise in Drosophila Prevents Age-Related Cardiac Dysfunction Caused by High Fat and Heart-Specific Knockdown of skd. Int J Mol Sci 2023; 24:ijms24021216. [PMID: 36674733 PMCID: PMC9865808 DOI: 10.3390/ijms24021216] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Skuld (skd) is a subunit of the Mediator complex subunit complex. In the heart, skd controls systemic obesity, is involved in systemic energy metabolism, and is closely linked to cardiac function and aging. However, it is unclear whether the effect of cardiac skd on cardiac energy metabolism affects cardiac function. We found that cardiac-specific knockdown of skd showed impaired cardiac function, metabolic impairment, and premature aging. Drosophila was subjected to an exercise and high-fat diet (HFD) intervention to explore the effects of exercise on cardiac skd expression and cardiac function in HFD Drosophila. We found that Hand-Gal4>skd RNAi (KC) Drosophila had impaired cardiac function, metabolic impairment, and premature aging. Regular exercise significantly improved cardiac function and metabolism and delayed aging in HFD KC Drosophila. Thus, our study found that the effect of skd on cardiac energy metabolism in the heart affected cardiac function. Exercise may counteract age-related cardiac dysfunction and metabolic disturbances caused by HFD and heart-specific knockdown of skd. Skd may be a potential therapeutic target for heart disease.
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Fan W, Sun X, Yang C, Wan J, Luo H, Liao B. Pacemaker activity and ion channels in the sinoatrial node cells: MicroRNAs and arrhythmia. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 177:151-167. [PMID: 36450332 DOI: 10.1016/j.pbiomolbio.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/13/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022]
Abstract
The primary pacemaking activity of the heart is determined by a spontaneous action potential (AP) within sinoatrial node (SAN) cells. This unique AP generation relies on two mechanisms: membrane clocks and calcium clocks. Nonhomologous arrhythmias are caused by several functional and structural changes in the myocardium. MicroRNAs (miRNAs) are essential regulators of gene expression in cardiomyocytes. These miRNAs play a vital role in regulating the stability of cardiac conduction and in the remodeling process that leads to arrhythmias. Although it remains unclear how miRNAs regulate the expression and function of ion channels in the heart, these regulatory mechanisms may support the development of emerging therapies. This study discusses the spread and generation of AP in the SAN as well as the regulation of miRNAs and individual ion channels. Arrhythmogenicity studies on ion channels will provide a research basis for miRNA modulation as a new therapeutic target.
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Affiliation(s)
- Wei Fan
- Department of Cardiovascular Surgery, Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, Sichuan Province, 646000, China
| | - Xuemei Sun
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, Sichuan Province, 646000, China
| | - Chao Yang
- Department of Cardiovascular Surgery, Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, Sichuan Province, 646000, China
| | - Juyi Wan
- Department of Cardiovascular Surgery, Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, Sichuan Province, 646000, China.
| | - Hongli Luo
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, Sichuan Province, 646000, China.
| | - Bin Liao
- Department of Cardiovascular Surgery, Affiliated Hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, Luzhou, Sichuan Province, 646000, China.
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Silveira A, Gomes J, Roque F, Fernandes T, de Oliveira EM. MicroRNAs in Obesity-Associated Disorders: The Role of Exercise Training. Obes Facts 2022; 15:105-117. [PMID: 35051942 PMCID: PMC9021631 DOI: 10.1159/000517849] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 06/09/2021] [Indexed: 11/19/2022] Open
Abstract
Obesity is a worldwide epidemic affecting over 13% of the adult population and is defined by an excess of body fat that predisposes comorbidities. It is considered a multifactorial disease in which environmental and genetic factors interact, and it is a risk marker for cardiovascular disease. Lifestyle modifications remain the mainstay of treatment for obesity based on adequate diet and physical exercise. In addition, obesity is related to cardiovascular and skeletal muscle disorders, such as cardiac hypertrophy, microvascular rarefaction, and skeletal muscle atrophy. The discovery of obesity-involved molecular pathways is an important step to improve both the prevention and management of this disease. MicroRNAs (miRNAs) are a class of gene regulators which bind most commonly, but not exclusively, to the 3'-untranslated regions of messenger RNAs of protein-coding genes and negatively regulate their expression. Considerable effort has been made to identify miRNAs and target genes that predispose to obesity. Besides their intracellular function, recent studies have demonstrated that miRNAs can be exported or released by cells and circulate within the blood in a remarkably stable form. The discovery of circulating miRNAs opens up intriguing possibilities for the use of circulating miRNA patterns as biomarkers for obesity and cardiovascular diseases. The aim of this review is to provide an overview of the recent discoveries of the role played by miRNAs in the obese phenotype and associated comorbidities. Furthermore, we will discuss the role of exercise training on regulating miRNAs, indicating the mechanisms related to these alterations.
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Affiliation(s)
- Andre Silveira
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
- Endurance Performance Research Group (GEDAE-USP), School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - João Gomes
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - Fernanda Roque
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - Tiago Fernandes
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
- *Tiago Fernandes,
| | - Edilamar Menezes de Oliveira
- Laboratory of Biochemistry and Molecular Biology of Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
- **Edilamar Menezes de Oliveira,
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Improta-Caria AC, Aras Júnior R. Physical Exercise Training and Chagas Disease: Potential Role of MicroRNAs. Arq Bras Cardiol 2021; 117:132-141. [PMID: 34320083 PMCID: PMC8294722 DOI: 10.36660/abc.20200330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/16/2020] [Indexed: 12/12/2022] Open
Abstract
A doença de Chagas (DC) é causada pelo Trypanosoma Cruzi. Esse parasita pode infectar vários órgãos do corpo humano, especialmente o coração, causando inflamação, fibrose, arritmias e remodelação cardíaca, e promovendo a cardiomiopatia chagásica crônica (CCC) no longo prazo. Entretanto, poucas evidências científicas elucidaram os mecanismos moleculares que regulam os processos fisiopatológicos nessa doença. Os microRNAs (miRNAs) são reguladores de expressão gênica pós-transcricional que modulam a sinalização celular, participando de mecanismos fisiopatológicos da DC, mas o entendimento dos miRNAs nessa doença é limitado. Por outro lado, há muitas evidências científicas demonstrando que o treinamento com exercício físico (TEF) modula a expressão de miRNAs, modificando a sinalização celular em indivíduos saudáveis. Alguns estudos também demonstram que o TEF traz benefícios para indivíduos com DC, porém esses não avaliaram as expressões de miRNA. Dessa forma, não há evidências demonstrando o papel do TEF na expressão dos miRNAs na DC. Portanto, essa revisão teve o objetivo de identificar os miRNAs expressos na DC que poderiam ser modificados pelo TEF.
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Affiliation(s)
- Alex Cleber Improta-Caria
- Programa de Pós-Graduação em Medicina e Saúde, Faculdade de Medicina, Universidade Federal da Bahia, Salvador, BA - Brasil.,Departamento de Educação Física em Cardiologia do Estado da Bahia, Sociedade Brasileira de Cardiologia,Salvador, BA - Brasil
| | - Roque Aras Júnior
- Programa de Pós-Graduação em Medicina e Saúde, Faculdade de Medicina, Universidade Federal da Bahia, Salvador, BA - Brasil
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Lavorato VN, Miranda DCD, Isoldi MC, Drummond FR, Soares LL, Reis ECC, Pelúzio MDCG, Pedrosa ML, Silva ME, Natali AJ. Effects of aerobic exercise training and açai supplementation on cardiac structure and function in rats submitted to a high-fat diet. Food Res Int 2021; 141:110168. [PMID: 33642024 DOI: 10.1016/j.foodres.2021.110168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 12/21/2020] [Accepted: 01/15/2021] [Indexed: 01/25/2023]
Abstract
This study evaluated the effect of aerobic exercise training (AET) and supplementation with açai on cardiac structure and function in rats submitted to a high-fat diet. Two-month old Fischer male rats were divided into 5 groups: Control (C), High-fat Diet (H), High-fat Diet + Açai (HA), High-fat Diet + AET (HT), High-fat Diet + Açai + AET (HAT). The high-fat diet had 21.8% lard and 1% cholesterol (H and HT), or supplemented with 1% lyophilized açai pulp (HA and HAT). The HT and HAT groups performed AET on a treadmill (5 days/week, 1 h/day, 60% of the maximum running speed) for 8 weeks. Exercise tolerance test were performed, and adiposity index calculated. After euthanasia, the left ventricle (LV) was dissected and processed for histological, single myocyte intracellular calcium ([Ca2+]i) transient and contractility, oxidative stress and gene expression analysis. AET improved running capacity and reduced the adiposity index. Both AET and açai supplementation inhibited the increase in the LV collagen content, the deleterious effects on the [Ca2+]i transient and contractility in cardiomyocytes and the increment in oxidative stress, caused by the consumption of a high-fat diet. Aerobic exercise training and açai supplementation can mitigate damage caused by high-fat diet in cardiac structure and function, though the combination of treatments had no additional effects.
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Affiliation(s)
- Victor Neiva Lavorato
- Department of Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
| | | | - Mauro César Isoldi
- Department of Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Filipe Rios Drummond
- Department of Physical Education, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Leôncio Lopes Soares
- Department of Physical Education, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil.
| | | | | | - Maria Lúcia Pedrosa
- Department of Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | | | - Antônio José Natali
- Department of Physical Education, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil.
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Qin R, Murakoshi N, Xu D, Tajiri K, Feng D, Stujanna EN, Yonebayashi S, Nakagawa Y, Shimano H, Nogami A, Koike A, Aonuma K, Ieda M. Exercise training reduces ventricular arrhythmias through restoring calcium handling and sympathetic tone in myocardial infarction mice. Physiol Rep 2020; 7:e13972. [PMID: 30806037 PMCID: PMC6389758 DOI: 10.14814/phy2.13972] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 12/21/2022] Open
Abstract
Exercise can improve morbidity and mortality in heart failure patients; however, the underlying mechanisms remain to be fully investigated. Thus, we investigated the effects of exercise on cardiac function and ventricular arrhythmias in myocardial infarction (MI) induced heart failure mice. Wild-type male mice underwent sham-operation or permanent left coronary artery ligation to induce MI. MI mice were divided into a sedentary (MI-Sed) and two intervention groups: MI-Ex (underwent 6-week treadmill exercise training) and MI-βb (oral bisoprolol treatment (1 mg/kg/d) without exercise). Cardiac function and structure were assessed by echocardiography and histology. Exercise capacity and cardiopulmonary function was accepted as oxygen consumption at peak exercise (peak VO2 ). Autonomic nervous system function and the incidence of spontaneous ventricular arrhythmia were evaluated via telemetry recording. mRNA and protein expressions in the left ventricle (LV) were investigated by real-time PCR and Western blotting. There were no differences in survival rate, MI size, cardiac function and structure, while exercise training improved peak VO2 . Compared with MI-Sed, MI-Ex, and MI-βb showed decreased sympathetic tone and lower incidence of spontaneous ventricular arrhythmia. By Western blot, the hyperphosphorylation of CaMKII and RyR2 were restored by exercise and β-blocker treatment. Furthermore, elevated expression of miR-1 and decreased expression of its target protein PP2A were recovered by exercise and β-blocker treatment. Continuous intensive exercise training can suppress ventricular arrhythmias in subacute to chronic phase of MI through restoring autonomic imbalance and impaired calcium handling, similarly to that for β-blockers.
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Affiliation(s)
- Rujie Qin
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Nobuyuki Murakoshi
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - DongZhu Xu
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Kazuko Tajiri
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Duo Feng
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Endin N Stujanna
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Saori Yonebayashi
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Yoshimi Nakagawa
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hitoshi Shimano
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Akira Koike
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.,Medical Science, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
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Zhang Y, He N, Feng B, Ye H. Exercise Mediates Heart Protection via Non-coding RNAs. Front Cell Dev Biol 2020; 8:182. [PMID: 32266263 PMCID: PMC7098911 DOI: 10.3389/fcell.2020.00182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/04/2020] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular diseases (CVDs) have become the central matter of death worldwide and have emerged as a notable concern in the healthcare field. There is accumulating evidence that regular exercise training can be as a reliable and widely favorable approach to prevent the heart from cardiovascular events. Non-coding RNAs (ncRNAs) could act as innovative biomarkers and auspicious therapeutic targets to reduce the incidence of CVDs. In this review, we summarized the regulatory effects of ncRNAs in the cardiac-protection provided by exercise to assess potential therapies for CVDs and disease prevention.
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Affiliation(s)
- Yuelin Zhang
- Department of Cardiology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, China
| | - Nana He
- Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, China.,Department of Experimental Medical Science, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Beili Feng
- Department of Cardiology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, China
| | - Honghua Ye
- Department of Cardiology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, China
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Holmes L, Lim A, Comeaux CR, Dabney KW, Okundaye O. DNA Methylation of Candidate Genes (ACE II, IFN-γ, AGTR 1, CKG, ADD1, SCNN1B and TLR2) in Essential Hypertension: A Systematic Review and Quantitative Evidence Synthesis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16234829. [PMID: 31805646 PMCID: PMC6926644 DOI: 10.3390/ijerph16234829] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/17/2019] [Accepted: 11/21/2019] [Indexed: 12/11/2022]
Abstract
Physical, chemical, and social environments adversely affect the molecular process and results in cell signal transduction and the subsequent transcription factor dysregulation, leading to impaired gene expression and abnormal protein synthesis. Stressful environments such as social adversity, isolation, sustained social threats, physical inactivity, and highly methylated diets predispose individuals to molecular level alterations such as aberrant epigenomic modulations that affect homeostasis and hemodynamics. With cardiovascular disease as the leading cause of mortality in the US and blacks/African Americans being disproportionately affected by hypertension (HTN) which contributes substantially to these deaths, reflecting the excess mortality and survival disadvantage of this sub-population relative to whites, understanding the molecular events, including epigenomic and socio-epigenomic modulations, is relevant to narrowing the black-white mortality risk differences. We aimed to synthesize epigenomic findings in HTN namely (a) angiotensin-converting enzyme 2 (ACE II) gene, (b) Toll-like receptor 2 (TLR2) gene, (c) interferon γ (IFN-γ) gene, and (d) Capping Actin Protein, Gelosin-Like (CAPG) gene, adducin 1(ADD1) gene, (e) Tissue inhibitor of metalloproteinase 3 (TIMP3), (f) mesoderm specific transcript (MEST) loci, (g) sodium channel epithelial 1 alpha subunit 2 (SCNN1B), (h) glucokinase (CKG) gene (i) angiotensin II receptor, type1 (AGTR1), and DNA methylation (mDNA). A systematic review and quantitative evidence synthesis (QES) was conducted using Google Scholar and PubMed with relevant search terms. Data were extracted from studies on: (a) Epigenomic modulations in HTN based on ACE II (b) TLR2, (c) IFN-γ gene, (d) CAPG, ADD1, TIMP3, MEST loci, and mDNA. The random-effect meta-analysis method was used for a pooled estimate of the common effect size, while z statistic and I^2 were used for the homogeneity of the common effect size and between studies on heterogeneity respectively. Of the 642 studies identified, five examined hypermethylation while seven studies assessed hypomethylation in association with HTN. The hypermethylation of ACE II, SCNN1B, CKG, IFN-γ gene, and miR-510 promoter were associated with hypertension, the common effect size (CES) = 6.0%, 95% CI, −0.002–11.26. In addition, the hypomethylation of TLR2, IFN-γ gene, ADD1, AGTR1, and GCK correlated with hypertension, the CES = 2.3%, 95% CI, −2.51–7.07. The aberrant epigenomic modulation of ACE II, TLR2, IFN-γ, AGTR1, and GCK correlated with essential HTN. Transforming the environments resulting from these epigenomic lesions will facilitate early intervention mapping in reducing HTN in the US population, especially among socially disadvantaged individuals, particularly racial/ethnic minorities.
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Affiliation(s)
- Laurens Holmes
- Nemours/A.I. DuPont Children’s Hospital, Nemours Office of Health Equity & Inclusion, 2200 Concord Pike, 7th Floor, Wilmington, DE 19803, USA; (A.L.); (C.R.C.); (K.W.D.); (O.O.)
- Biological Sciences Department, University of Delaware, Newark, DE 19711, USA
- Correspondence: ; Tel.: +1-302-298-7741; Fax: +1-302-651-6782
| | - Andrew Lim
- Nemours/A.I. DuPont Children’s Hospital, Nemours Office of Health Equity & Inclusion, 2200 Concord Pike, 7th Floor, Wilmington, DE 19803, USA; (A.L.); (C.R.C.); (K.W.D.); (O.O.)
| | - Camillia R. Comeaux
- Nemours/A.I. DuPont Children’s Hospital, Nemours Office of Health Equity & Inclusion, 2200 Concord Pike, 7th Floor, Wilmington, DE 19803, USA; (A.L.); (C.R.C.); (K.W.D.); (O.O.)
- Institute of Public Health, Florida A&M University, Tallahassee, FL 32301, USA
| | - Kirk W. Dabney
- Nemours/A.I. DuPont Children’s Hospital, Nemours Office of Health Equity & Inclusion, 2200 Concord Pike, 7th Floor, Wilmington, DE 19803, USA; (A.L.); (C.R.C.); (K.W.D.); (O.O.)
| | - Osatohamwen Okundaye
- Nemours/A.I. DuPont Children’s Hospital, Nemours Office of Health Equity & Inclusion, 2200 Concord Pike, 7th Floor, Wilmington, DE 19803, USA; (A.L.); (C.R.C.); (K.W.D.); (O.O.)
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11
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Netrin-1 plays a role in the effect of moderate exercise on myocardial fibrosis in rats. PLoS One 2019; 14:e0199802. [PMID: 30789913 PMCID: PMC6383912 DOI: 10.1371/journal.pone.0199802] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 12/24/2018] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION This study aimed to investigate the effect of aerobic exercise on the expression of neitrin-1,DCC receptor and myocardial fibrosis in rats with acute myocardial infarction. METHODS Twenty-four rats were randomly divided into three groups: the sham group (n = 8), the acute myocardial infarction (AMI) model group (n = 8), and the aerobic exercise treatment after acute myocardial infarction group (ET) (n = 8). After 10 weeks, the serum levels of netrin-1, tumor necrosis factor alpha α (TNF-α), and interleukin 6 (IL-6) were measured. The expression of matrix metalloproteinase 2 and 9 (MMP2, 9), and their inhibitor, tissue inhibitor of metalloproteinase 2 (TIMP2), myocardial netrin-1, and the deleted in colorectal cancer (DCC) receptor were evaluated. Histopathological results were also evaluated. The collagen volume fraction of the myocardial tissues was also calculated. RESULTS Compared with the sham group, in the AMI and ET groups, left ventricular end diastolic pressure (LVEDP) were increased, while left ventricular systolic pressure (LVSP), and left ventricular pressure maximal rate of rise and fall (± dp/dtmax) were significantly decreased (P<0.05,). Compared with the AMI group, in the ET group, LVSP, and ±dp/dtmax were significantly increased while LVEDP was decreased (P<0.05). Compared with the sham group, the AMI group and ET groups showed increased levels of serum TNF-α, IL-6 and significantly reduced levels of netrin-1. Levels of TNF-α and IL-6 were significantly reduced in the ET group compared with the AMI group, whereas the level of netrin-1 was increased. The expression of myocardial MMP2 and MMP9 was significantly increased in the AMI group compared with the sham group, whereas that of myocardial netrin-1, TIMP2 and the DCC receptor, was significantly reduced. Compared with the AMI group, the ET group showed reduced expression of myocardial MMP2 and MMP9 proteins, whereas expression of myocardial netrin-1, TIMP2 and the DCC receptor, was significantly increased. The collagen volume fraction of the myocardial tissues was significantly increased in the AMI group and the ET group compared with the sham group, with a greater increase in the AMI group. CONCLUSIONS Aerobic exercise increased levels of serum netrin-1, myocardial netrin-1, and the DCC receptor and reduced the expression of myocardial MMP2 and MMP9 proteins, to improve the degree of fibrosis following myocardial infarction in rats.
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Fernandes T, Barretti DL, Phillips MI, Menezes Oliveira E. Exercise training prevents obesity-associated disorders: Role of miRNA-208a and MED13. Mol Cell Endocrinol 2018; 476:148-154. [PMID: 29746886 DOI: 10.1016/j.mce.2018.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/17/2018] [Accepted: 05/05/2018] [Indexed: 12/21/2022]
Abstract
Exercise training (ET) has been established as an important treatment for obesity, since it counteracts aberrant cardiac metabolism and weight gain; however, underlying mechanisms remain to be further determined. MicroRNAs (miRNAs) inhibit protein expression by base-pairing with the 3' UTRs of mRNA targets. MiRNA-208a is a cardiac-specific miRNA that regulates β-MHC content and systemic energy homeostasis via MED13. We investigated whether ET regulates the cardiac miRNA-208a and its target MED13, reducing the weight gain and β-MHC expression in obese Zucker rats (OZR). OZR (n = 11) and Lean (L, n = 10) male rats were assigned into 4 groups: OZR, trained OZR (OZRT), L and trained L (LT). Swimming ET consisted of 60 min of duration, 1x/day, 5x/week/10 weeks. MiRNA and gene expression were analyzed by real-time PCR and protein levels by western blot. Resting bradycardia was observed in trained groups. ET reduced weight gain, retroperitoneal fat weight and adipocyte cell size in OZRT compared with OZR group. Cardiac miRNA-208a levels increased 57% in OZR paralleled with a decrease of 39% in MED13 protein levels compared with L group. In contrast, ET corrected the cardiac miRNA-208a and MED13 levels in OZRT compared with L group. Furthermore, ET reduced the increased cardiac mass and normalized β-MHC protein levels caused by obesity. These results suggest that ET can prevent weight gain and pathological cardiac hypertrophy via increased of cardiac MED13 by the regulation of miRNA-208a. Therefore, miRNA-208a can be used as potential therapeutic target for metabolic and cardiac disorders.
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Affiliation(s)
- Tiago Fernandes
- Laboratory of Biochemistry and Molecular Biology of the Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, SP, Brazil; Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Diego Lopes Barretti
- Laboratory of Biochemistry and Molecular Biology of the Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - M Ian Phillips
- Laboratory of Stem Cells, Keck Graduate Institute, Claremont, CA, USA
| | - Edilamar Menezes Oliveira
- Laboratory of Biochemistry and Molecular Biology of the Exercise, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, SP, Brazil.
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13
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Corrigendum to "Exercise Training Restores Cardiac MicroRNA-1 and MicroRNA-29c to Nonpathological Levels in Obese Rats". OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4818310. [PMID: 29683145 PMCID: PMC5845500 DOI: 10.1155/2018/4818310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 12/12/2017] [Indexed: 11/17/2022]
Abstract
[This corrects the article DOI: 10.1155/2017/1549014.].
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