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Challa AA, Vidal P, Maurya SK, Maurya CK, Baer LA, Wang Y, James NM, Pardeshi PJ, Fasano M, Carley AN, Stanford KI, Lewandowski ED. UCP1-dependent brown adipose activation accelerates cardiac metabolic remodeling and reduces initial hypertrophic and fibrotic responses to pathological stress. FASEB J 2024; 38:e23709. [PMID: 38809700 PMCID: PMC11163965 DOI: 10.1096/fj.202400922r] [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: 04/22/2024] [Revised: 05/06/2024] [Accepted: 05/16/2024] [Indexed: 05/31/2024]
Abstract
Brown adipose tissue (BAT) is correlated to cardiovascular health in rodents and humans, but the physiological role of BAT in the initial cardiac remodeling at the onset of stress is unknown. Activation of BAT via 48 h cold (16°C) in mice following transverse aortic constriction (TAC) reduced cardiac gene expression for LCFA uptake and oxidation in male mice and accelerated the onset of cardiac metabolic remodeling, with an early isoform shift of carnitine palmitoyltransferase 1 (CPT1) toward increased CPT1a, reduced entry of long chain fatty acid (LCFA) into oxidative metabolism (0.59 ± 0.02 vs. 0.72 ± 0.02 in RT TAC hearts, p < .05) and increased carbohydrate oxidation with altered glucose transporter content. BAT activation with TAC reduced early hypertrophic expression of β-MHC by 61% versus RT-TAC and reduced pro-fibrotic TGF-β1 and COL3α1 expression. While cardiac natriuretic peptide expression was yet to increase at only 3 days TAC, Nppa and Nppb expression were elevated in Cold TAC versus RT TAC hearts 2.7- and 2.4-fold, respectively. Eliminating BAT thermogenic activation with UCP1 KO mice eliminated differences between Cold TAC and RT TAC hearts, confirming effects of BAT activation rather than autonomous cardiac responses to cold. Female responses to BAT activation were blunted, with limited UCP1 changes with cold, partly due to already activated BAT in females at RT compared to thermoneutrality. These data reveal a previously unknown physiological mechanism of UCP1-dependent BAT activation in attenuating early cardiac hypertrophic and profibrotic signaling and accelerating remodeled metabolic activity in the heart at the onset of cardiac stress.
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Affiliation(s)
- Azariyas A. Challa
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Pablo Vidal
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Santosh K. Maurya
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Chandan K. Maurya
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Lisa A. Baer
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Yang Wang
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Natasha Maria James
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Parth J. Pardeshi
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Matthew Fasano
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Andrew N. Carley
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Kristin I. Stanford
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - E. Douglas Lewandowski
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
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2
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Medvedev RY, Afolabi SO, Turner DGP, Glukhov AV. Mechanisms of stretch-induced electro-anatomical remodeling and atrial arrhythmogenesis. J Mol Cell Cardiol 2024; 193:11-24. [PMID: 38797242 DOI: 10.1016/j.yjmcc.2024.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 05/15/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024]
Abstract
Atrial fibrillation (AF) is the most common cardiac rhythm disorder, often occurring in the setting of atrial distension and elevated myocardialstretch. While various mechano-electrochemical signal transduction pathways have been linked to AF development and progression, the underlying molecular mechanisms remain poorly understood, hampering AF therapies. In this review, we describe different aspects of stretch-induced electro-anatomical remodeling as seen in animal models and in patients with AF. Specifically, we focus on cellular and molecular mechanisms that are responsible for mechano-electrochemical signal transduction and the development of ectopic beats triggering AF from pulmonary veins, the most common source of paroxysmal AF. Furthermore, we describe structural changes caused by stretch occurring before and shortly after the onset of AF as well as during AF progression, contributing to longstanding forms of AF. We also propose mechanical stretch as a new dimension to the concept "AF begets AF", in addition to underlying diseases. Finally, we discuss the mechanisms of these electro-anatomical alterations in a search for potential therapeutic strategies and the development of novel antiarrhythmic drugs targeted at the components of mechano-electrochemical signal transduction not only in cardiac myocytes, but also in cardiac non-myocyte cells.
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Affiliation(s)
- Roman Y Medvedev
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Saheed O Afolabi
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA; Department of Pharmacology and Therapeutics, University of Ilorin, Ilorin, Nigeria
| | - Daniel G P Turner
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Alexey V Glukhov
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
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3
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Aguilar BA, Vieira S, Veiga AC, da Silva JVMB, Paixao TV, Rodrigues KP, Tank J, Ruys LA, de Souza HCD. Physical exercise is essential for increasing ventricular contractility in hypertensive rats treated with losartan. Hypertens Res 2024; 47:1350-1361. [PMID: 38418900 DOI: 10.1038/s41440-024-01611-z] [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: 08/09/2023] [Revised: 01/07/2024] [Accepted: 01/27/2024] [Indexed: 03/02/2024]
Abstract
The treatment of hypertensive patients with losartan is very common. Despite the reduction in blood pressure, its effects on cardiac contractility and sympathetic autonomic drive are still controversial. In turn, aerobic physical training (APT) also presents an important therapeutic option, providing significant improvements in cardiovascular autonomic control, however little is known about its effects on cardiac contractility, especially when associated with losartan. Therefore, we investigated in spontaneously hypertensive rats (SHR) the effects of losartan and APT on cardiac hemodynamics and functionality, with emphasis on autonomic tonic balance and cardiac contractility. Sixty-four SHR (18 weeks old) were divided into four groups (N = 16): vehicle; vehicle submitted to APT through swimming for 12 weeks; treated with losartan (5 mg·kg-1·d-1) for 12 weeks; and treated with losartan associated with APT. The groups were submitted to cardiac morphological and functional analysis by echocardiography; double blockade of cardiac autonomic receptors with atropine and propranolol; and coronary bed reactivity and left ventricular contractility analyses by the Langendorff technique. APT improved functional parameters and autonomic balance by reducing sympathetic drive and/or increasing vagal drive. In contrast, it promoted a concentric remodeling of the left ventricle (LV). Treatment with losartan reduced sympathetic autonomic drive and cardiac morphological parameters, but there were no significant gains in cardiac functionality and contractility. When combined, the concentric remodeling of the LV to APT was abolished and gains in cardiac functionality and contractility were observed. Our findings suggest that the effects of losartan and APT are complementary and should be applied together in the treatment of hypertension. In spontaneously hypertensive rats, the combination of aerobic physical training with losartan treatment was crucial to greater blood pressure reductions and an increase in left ventricular contractility. Furthermore, losartan treatment prevented the concentric left ventricular remodeling caused by aerobic physical training.
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Affiliation(s)
- Bruno Augusto Aguilar
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Suenimeire Vieira
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ana Catarine Veiga
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Tallys Velasco Paixao
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Karine Pereira Rodrigues
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Jens Tank
- Department of Cardiovascular Aerospace Medicine, Institute of Aerospace Medicine, German Aerospace Center, 51147, Cologne, Germany
| | - Leticia Araujo Ruys
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Hugo Celso Dutra de Souza
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
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Dougherty BV, Moore CJ, Rawls KD, Jenior ML, Chun B, Nagdas S, Saucerman JJ, Kolling GL, Wallqvist A, Papin JA. Identifying metabolic adaptations characteristic of cardiotoxicity using paired transcriptomics and metabolomics data integrated with a computational model of heart metabolism. PLoS Comput Biol 2024; 20:e1011919. [PMID: 38422168 DOI: 10.1371/journal.pcbi.1011919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/12/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024] Open
Abstract
Improvements in the diagnosis and treatment of cancer have revealed long-term side effects of chemotherapeutics, particularly cardiotoxicity. Here, we present paired transcriptomics and metabolomics data characterizing in vitro cardiotoxicity to three compounds: 5-fluorouracil, acetaminophen, and doxorubicin. Standard gene enrichment and metabolomics approaches identify some commonly affected pathways and metabolites but are not able to readily identify metabolic adaptations in response to cardiotoxicity. The paired data was integrated with a genome-scale metabolic network reconstruction of the heart to identify shifted metabolic functions, unique metabolic reactions, and changes in flux in metabolic reactions in response to these compounds. Using this approach, we confirm previously seen changes in the p53 pathway by doxorubicin and RNA synthesis by 5-fluorouracil, we find evidence for an increase in phospholipid metabolism in response to acetaminophen, and we see a shift in central carbon metabolism suggesting an increase in metabolic demand after treatment with doxorubicin and 5-fluorouracil.
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Affiliation(s)
- Bonnie V Dougherty
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
| | - Connor J Moore
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
| | - Kristopher D Rawls
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
| | - Matthew L Jenior
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
| | - Bryan Chun
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
| | - Sarbajeet Nagdas
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia Health System, Charlottesville, Virginia, United States of America
| | - Jeffrey J Saucerman
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
| | - Glynis L Kolling
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Medicine, Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, United States of America
| | - Anders Wallqvist
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Development Command, Fort Detrick, Maryland, United States of America
| | - Jason A Papin
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Medicine, Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Biochemistry & Molecular Genetics, University of Virginia, Charlottesville, Virginia, United States of America
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5
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An Y, Wang X, Guan X, Yuan P, Liu Y, Wei L, Wang F, Qi X. Endoplasmic reticulum stress-mediated cell death in cardiovascular disease. Cell Stress Chaperones 2024; 29:158-174. [PMID: 38295944 PMCID: PMC10939083 DOI: 10.1016/j.cstres.2023.12.003] [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: 10/19/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 02/24/2024] Open
Abstract
The endoplasmic reticulum (ER) plays a vital function in maintaining cellular homeostasis. Endoplasmic reticulum stress (ERS) can trigger various modes of cell death by activating the unfolded protein response (UPR) signaling pathway. Cell death plays a crucial role in the occurrence and development of diseases such as cancer, liver diseases, neurological diseases, and cardiovascular diseases. Several cardiovascular diseases including hypertension, atherosclerosis, and heart failure are associated with ER stress. ER stress-mediated cell death is of interest in cardiovascular disease. Moreover, an increasing body of evidence supports the potential of modulating ERS for treating cardiovascular disease. This paper provides a comprehensive review of the UPR signaling pathway, the mechanisms that induce cell death, and the modes of cell death in cardiovascular diseases. Additionally, we discuss the mechanisms of ERS and UPR in common cardiovascular diseases, along with potential therapeutic strategies.
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Affiliation(s)
- Yajuan An
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinshuang Wang
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiuju Guan
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Peng Yuan
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yue Liu
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
| | - Liping Wei
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
| | - Fei Wang
- Department of Vascular Surgery, Hebei General Hospital, Hebei, China
| | - Xin Qi
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Department of Cardiology, Tianjin Union Medical Center, Tianjin, China.
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6
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Aitken AV, Minassa VS, Batista TJ, Oliveira JKDS, Sant'Anna KDO, Felippe ISA, Paton JFR, Coitinho JB, Bissoli NS, Sampaio KN. Acute poisoning by chlorpyrifos differentially impacts survival and cardiorespiratory function in normotensive and hypertensive rats. Chem Biol Interact 2024; 387:110821. [PMID: 38042398 DOI: 10.1016/j.cbi.2023.110821] [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: 08/16/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023]
Abstract
Hypertension is the most important and well-known risk factor for cardiovascular disease (CVD). Recently, acute organophosphate (OP) poisoning has also been pointed as a CVD risk factor. Despite this evidence, no studies have contrasted the acute toxicosis and cardiovascular (CV) effects of OP poisoning under conditions of normotension and hypertension. In this work, adult male normotensive Wistar and Spontaneously Hypertensive rats (SHR) were intraperitoneally injected with saline or chlorpyrifos (CPF), an OP compound, monitored for acute toxicosis signs and 24-h survival. After poisoning, blood pressure, heart rate and ventilation were recorded, the Bezold-Jarisch Reflex (BJR), the Chemoreflex (CR) were chemically activated, as well as the cardiac autonomic tone (AUT) was assessed. Erythrocyte and brainstem acetylcholinesterase and plasmatic butyrylcholinesterase (BuChE) activities were measured as well as lipid peroxidation, advanced oxidation protein products (AOPP), nitrite/nitrate levels, expression of catalase, TNFα and angiotensin-I converting enzyme (ACE-1) within the brainstem. CPF induced a much more pronounced acute toxicosis and 33 % lethality in SHR. CPF poisoning impaired ventilation in SHR, the BJR reflex responses in Wistar rats, and the chemoreflex tachypneic response in both strains. CPF inhibited activity of cholinesterases in both strains, increased AOPP and nitrite/nitrate levels and expression of TNFα and ACE-1 in the brainstem of Wistar rats. Interestingly, SHR presented a reduced intrinsic BuChE activity, an important bioscavenger. Our findings show that, CPF at sublethal doses in normotensive rats lead to lethality and much more pronounced acute toxicity signs in the SHR. We also showed that cardiorespiratory reflexes were differentially impacted after CPF poisoning in both strains and that the cardiorespiratory disfunction seems to be associated with interference in cholinergic transmission, oxidative stress and inflammation. These results points to an increased susceptibility to acute toxicosis in hypertension, which may impose a significant risk to vulnerable populations.
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Affiliation(s)
- Andrew Vieira Aitken
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil; Department of Anatomy, Physiology, and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, 36849, USA
| | - Vítor Sampaio Minassa
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil; Postgraduate Program in Physiological Sciences, Department of Physiology, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Thatiany Jardim Batista
- Postgraduate Program in Physiological Sciences, Department of Physiology, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Janne Ketly da Silva Oliveira
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Karoline de Oliveira Sant'Anna
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Igor Simões Assunção Felippe
- The Centre for Heart Research - Manaaki Mānawa, Department of Physiology, Faculty of Health & Medical Sciences, University of Auckland, Grafton Campus, Auckland, 1023, New Zealand
| | - Julian Francis Richmond Paton
- The Centre for Heart Research - Manaaki Mānawa, Department of Physiology, Faculty of Health & Medical Sciences, University of Auckland, Grafton Campus, Auckland, 1023, New Zealand
| | - Juliana Barbosa Coitinho
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil; Postgraduate Program in Biochemistry, Department of Physiology, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Nazaré Souza Bissoli
- Postgraduate Program in Physiological Sciences, Department of Physiology, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Karla Nívea Sampaio
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil.
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Gao S, Liu XP, Li TT, Chen L, Feng YP, Wang YK, Yin YJ, Little PJ, Wu XQ, Xu SW, Jiang XD. Animal models of heart failure with preserved ejection fraction (HFpEF): from metabolic pathobiology to drug discovery. Acta Pharmacol Sin 2024; 45:23-35. [PMID: 37644131 PMCID: PMC10770177 DOI: 10.1038/s41401-023-01152-0] [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: 04/19/2023] [Accepted: 08/08/2023] [Indexed: 08/31/2023] Open
Abstract
Heart failure (HF) with preserved ejection fraction (HFpEF) is currently a preeminent challenge for cardiovascular medicine. It has a poor prognosis, increasing mortality, and is escalating in prevalence worldwide. Despite accounting for over 50% of all HF patients, the mechanistic underpinnings driving HFpEF are poorly understood, thus impeding the discovery and development of mechanism-based therapies. HFpEF is a disease syndrome driven by diverse comorbidities, including hypertension, diabetes and obesity, pulmonary hypertension, aging, and atrial fibrillation. There is a lack of high-fidelity animal models that faithfully recapitulate the HFpEF phenotype, owing primarily to the disease heterogeneity, which has hampered our understanding of the complex pathophysiology of HFpEF. This review provides an updated overview of the currently available animal models of HFpEF and discusses their characteristics from the perspective of energy metabolism. Interventional strategies for efficiently utilizing energy substrates in preclinical HFpEF models are also discussed.
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Affiliation(s)
- Si Gao
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, China
| | - Xue-Ping Liu
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, China
| | - Ting-Ting Li
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, China
| | - Li Chen
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, China
| | - Yi-Ping Feng
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, China
| | - Yu-Kun Wang
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, China
| | - Yan-Jun Yin
- School of Pharmacy, Bengbu Medical College, Bengbu, 233000, China
| | - Peter J Little
- School of Pharmacy, University of Queensland, Pharmacy Australia Centre of Excellence, Woolloongabba, QLD, 4102, Australia
| | - Xiao-Qian Wu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Suo-Wen Xu
- Department of Endocrinology, First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China.
| | - Xu-Dong Jiang
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, China.
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8
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Actis Dato AB, Martinez VR, Velez Rueda JO, Portiansky EL, De Giusti V, Ferrer EG, Williams PAM. Improvement of the cardiovascular effect of methyldopa by complexation with Zn(II): Synthesis, characterization and mechanism of action. J Trace Elem Med Biol 2024; 81:127327. [PMID: 37890445 DOI: 10.1016/j.jtemb.2023.127327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/03/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND the antihypertensive drug α-methyldopa (MD) stands as one of the extensively used medications for managing hypertension during pregnancy. Zinc deprivation has been associated with many diseases. In this context, the synthesis of a Zn coordination complex [Zn(MD)(OH)(H2O)2]·H2O (ZnMD) provide a promising alternative pathway to improve the biological properties of MD. METHODS ZnMD was synthesized and physicochemically characterized. Fluorescence spectral studies were conducted to examine the binding of both, the ligand and the metal with bovine serum albumin (BSA). MD, ZnMD, and ZnCl2 were administered to spontaneous hypertensive rats (SHR) rats during 8 weeks and blood pressure and echocardiographic parameters were determined. Ex vivo assays were conducted to evaluate levels of reactive oxygen species (ROS), thiobarbituric acid reactive substances (TBARS), and nitric oxide (NO). Cross-sectional area (CSA) and collagen levels of left ventricular cardiomyocytes were also assessed. Furthermore, the expression of NAD(P)H oxidase subunits (gp91phox and p47phox) and Superoxide Dismutase 1 (SOD1) was quantified through western blot analysis. RESULTS The complex exhibited a moderate affinity for binding with BSA showing a spontaneous interaction (indicated by negative ΔG values) and moderate affinity (determined by affinity constant values). The binding process involved the formation of Van der Waals forces and hydrogen bonds. Upon treatment with MD and ZnMD, a reduction in the systolic blood pressure in SHR was observed, being ZnMD more effective than MD (122 ± 8.1 mmHg and 145 ± 5.6 mmHg, at 8th week of treatment, respectively). The ZnMD treatment prevented myocardial hypertrophy, improved the heart function and reduced the cardiac fibrosis, as evidenced by parameters such as left ventricular mass, fractional shortening, and histological studies. In contrast, MD did not show noticeable differences in these parameters. ZnMD regulates negatively the oxidative damage by reducing levels of ROS and lipid peroxidation, as well as the cardiac NAD(P)H oxidase, and increasing SOD1 expression, while MD did not show significant effect. Moreover, cardiac nitric oxide levels were greater in the ZnMD therapy compared to MD treatment. CONCLUSION Both MD and ZnMD have the potential to be transported by albumin. Our findings provide important evidence suggesting that this complex could be a potential therapeutic drug for the treatment of hypertension and cardiac hypertrophy and dysfunction.
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Affiliation(s)
- Agustin B Actis Dato
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N◦ 1465, 1900 La Plata, Argentina
| | - Valeria R Martinez
- CIC-CONICET-UNLP, Facultad de Médicas, Universidad Nacional de La Plata, 60 y 120, 1900 La Plata, Argentina.
| | - Jorge O Velez Rueda
- CIC-CONICET-UNLP, Facultad de Médicas, Universidad Nacional de La Plata, 60 y 120, 1900 La Plata, Argentina
| | - Enrique L Portiansky
- Laboratorio de Análisis de Imágenes, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, 60 y 118, 1900 La Plata, Argentina
| | - Verónica De Giusti
- CIC-CONICET-UNLP, Facultad de Médicas, Universidad Nacional de La Plata, 60 y 120, 1900 La Plata, Argentina
| | - Evelina G Ferrer
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N◦ 1465, 1900 La Plata, Argentina
| | - Patricia A M Williams
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N◦ 1465, 1900 La Plata, Argentina.
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Zhang W, Zhang Y, Xia Y, Feng G, Wang Y, Wei C, Tang A, Song K, Qiu R, Wu Y, Jin S. Choline induced cardiac dysfunction by inhibiting the production of endogenous hydrogen sulfide in spontaneously hypertensive rats. Physiol Res 2023; 72:719-730. [PMID: 38215059 PMCID: PMC10805251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 09/07/2023] [Indexed: 01/14/2024] Open
Abstract
To investigate the exact effects of dietary choline on hypertensive heart disease (HHD) and explore the potential mechanisms, male spontaneously hypertensive rats (SHR) and Wistar Kyoto rats (WKY) were randomly divided into five groups as follows: WKY group, WKY + Choline group, SHR group, SHR + Choline group, and SHR + Choline + NaHS group. In choline treatment groups, rats were fed with 1.3% (w/v) choline in the drinking water for 3 months. The rats in the SHR + Choline + NaHS group were intraperitoneally injected with NaHS (100 micromol/kg/day, a hydrogen sulfide (H2S) donor) for 3 months. After 3 months, left ventricular ejection fraction (LVEF) and fractional shortening (LVFS), the indicators of cardiac function measured by echocardiography, were increased significantly in SHR as compared to WKY, although there was no significant difference in collagen volumes and Bax/Bcl-2 ratio between the two groups, indicating the early stage of cardiac hypertrophy. There was a significant decrease in LVEF and LVFS and an increase in collagen volumes and Bax/Bcl-2 ratio in SHR fed with choline, meanwhile, plasma H2S levels were significantly decreased significantly in SHR fed with choline accompanying by the decrease of cystathionine-gamma-lyase (CSE) activity. Three months of NaHS significantly increased plasma H2S levels, ameliorated cardiac dysfunction and inhibited cardiac fibrosis and apoptosis in SHR fed with choline. In conclusion, choline aggravated cardiac dysfunction in HHD through inhibiting the production of endogenous H2S, which was reversed by supplementation of exogenous H2S donor.
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Affiliation(s)
- W Zhang
- Department of Physiology, Hebei Medical University, Hebei, China
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10
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Jeremic J, Govoruskina N, Bradic J, Milosavljevic I, Srejovic I, Zivkovic V, Jeremic N, Nikolic Turnic T, Tanaskovic I, Bolevich S, Jakovljevic V, Bolevich S, Zivanovic MN, Okwose N, Seklic D, Milivojevic N, Grujic J, Velicki L, MacGowan G, Jakovljevic DG, Filipovic N. Sacubitril/valsartan reverses cardiac structure and function in experimental model of hypertension-induced hypertrophic cardiomyopathy. Mol Cell Biochem 2023; 478:2645-2656. [PMID: 36997815 DOI: 10.1007/s11010-023-04690-7] [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: 08/12/2022] [Accepted: 02/24/2023] [Indexed: 04/01/2023]
Abstract
This study evaluated the effect of sacubtril/valsartan on cardiac remodeling, molecular and cellular adaptations in experimental (rat) model of hypertension-induced hypertrophic cardiomyopathy. Thirty Wistar Kyoto rats, 10 healthy (control) and 20 rats with confirmed hypertension-induced hypertrophic cardiomyopathy (HpCM), were used for this study. The HpCM group was further subdivided into untreated and sacubitril/valsartan-treated groups. Myocardial structure and function were assessed using echocardiography, Langendorff's isolated heart experiment, blood sampling and qualitative polymerase chain reaction. Echocardiographic examinations revealed protective effects of sacubitril/valsartan by improving left ventricular internal diameter in systole and diastole and fractional shortening. Additionally, sacubitril/valsartan treatment decreased systolic and diastolic blood pressures in comparison with untreated hypertensive rats. Moreover, sacubitril/valsartan treatment reduced oxidative stress and apoptosis (reduced expression of Bax and Cas9 genes) compared to untreated rats. There was a regular histomorphology of cardiomyocytes, interstitium, and blood vessels in treated rats compared to untreated HpCM rats which expressed hypertrophic cardiomyocytes, with polymorphic nuclei, prominent nucleoli and moderately dilated interstitium. In experimental model of hypertension-induced hypertrophic cardiomyopathy, sacubitril/valsartan treatment led to improved cardiac structure, haemodynamic performance, and reduced oxidative stress and apoptosis. Sacubitril/valsartan thus presents as a potential therapeutic strategy resulted in hypertension-induced hypertrophic cardiomyopathy.
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Affiliation(s)
- Jovana Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
| | - Natalia Govoruskina
- Federal Clinical Center for High Medical, Technologies Federal Health Biological Agency, Moscow, Russia
| | - Jovana Bradic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
| | - Isidora Milosavljevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
| | - Ivan Srejovic
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, 34000, Kragujevac, Serbia
- Department of Pharmacology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Vladimir Zivkovic
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, 34000, Kragujevac, Serbia
- Department of Pharmacology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Nevena Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Tamara Nikolic Turnic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
- F.F. Erismann Institute of Public Health, N.A. Semashko Public Health and Healthcare Department, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Irena Tanaskovic
- Department of Histology and Embryology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Stefani Bolevich
- Department of Pharmacology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
- Department of Pathophysiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Vladimir Jakovljevic
- Center of Excellence for Redox Balance Research, Cardiovascular and Metabolic Disorders, Kragujevac, Serbia.
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, 34000, Kragujevac, Serbia.
- Department of Human Pathology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
| | - Sergey Bolevich
- Department of Human Pathology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Marko N Zivanovic
- Institute for Information Technologies Kragujevac, University of Kragujevac, Kragujevac, Serbia
- BioIRC - Bioengineering Research and Development Center, University of Kragujevac, Kragujevac, Serbia
| | - Nduka Okwose
- Translational and Clinical Research Instutute, Faculty of Medical Sciences, Newcastle University and Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - Dragana Seklic
- Institute for Information Technologies Kragujevac, University of Kragujevac, Kragujevac, Serbia
| | - Nevena Milivojevic
- Institute for Information Technologies Kragujevac, University of Kragujevac, Kragujevac, Serbia
| | - Jelena Grujic
- Institute for Information Technologies Kragujevac, University of Kragujevac, Kragujevac, Serbia
| | - Lazar Velicki
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
- Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica, Serbia
| | - Guy MacGowan
- Translational and Clinical Research Instutute, Faculty of Medical Sciences, Newcastle University and Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - Djordje G Jakovljevic
- Translational and Clinical Research Instutute, Faculty of Medical Sciences, Newcastle University and Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
- Faculty Research Centre (CSELS), Faculty of Health and Life Sciences, Institute for Health and Wellbeing (CSELS), Coventry University, London, UK
| | - Nenad Filipovic
- BioIRC - Bioengineering Research and Development Center, University of Kragujevac, Kragujevac, Serbia
- Faculty of Engineering, University of Kragujevac, Kragujevac, Serbia
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11
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Simpson CE, Hemnes AR, Griffiths M, Grunig G, Wilson Tang W, Garcia JGN, Barnard J, Comhair SA, Damico RL, Mathai SC, Hassoun PM. Metabolomic Differences in Connective Tissue Disease-Associated Versus Idiopathic Pulmonary Arterial Hypertension in the PVDOMICS Cohort. Arthritis Rheumatol 2023; 75:2240-2251. [PMID: 37335853 PMCID: PMC10728345 DOI: 10.1002/art.42632] [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] [Received: 03/07/2023] [Revised: 06/09/2023] [Accepted: 06/15/2023] [Indexed: 06/21/2023]
Abstract
OBJECTIVE Patients with connective tissue disease-associated pulmonary arterial hypertension (CTD-PAH) experience worse survival and derive less benefit from pulmonary vasodilator therapies than patients with idiopathic PAH (IPAH). We sought to identify differential metabolism in patients with CTD-PAH versus patients with IPAH that might underlie these observed clinical differences. METHODS Adult participants with CTD-PAH (n = 141) and IPAH (n = 165) from the Pulmonary Vascular Disease Phenomics (PVDOMICS) study were included. Detailed clinical phenotyping was performed at cohort enrollment, including broad-based global metabolomic profiling of plasma samples. Participants were followed prospectively for ascertainment of outcomes. Supervised and unsupervised machine learning algorithms and regression models were used to compare CTD-PAH versus IPAH metabolomic profiles and to measure metabolite-phenotype associations and interactions. Gradients across the pulmonary circulation were assessed using paired mixed venous and wedged samples in a subset of 115 participants. RESULTS Metabolomic profiles distinguished CTD-PAH from IPAH, with patients with CTD-PAH demonstrating aberrant lipid metabolism with lower circulating levels of sex steroid hormones and higher free fatty acids (FAs) and FA intermediates. Acylcholines were taken up by the right ventricular-pulmonary vascular (RV-PV) circulation, particularly in CTD-PAH, while free FAs and acylcarnitines were released. In both PAH subtypes, dysregulated lipid metabolites, among others, were associated with hemodynamic and RV measurements and with transplant-free survival. CONCLUSIONS CTD-PAH is characterized by aberrant lipid metabolism that may signal shifted metabolic substrate utilization. Abnormalities in RV-PV FA metabolism may imply a reduced capacity for mitochondrial beta oxidation within the diseased pulmonary circulation.
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Affiliation(s)
| | - Anna R. Hemnes
- Vanderbilt University Division of Allergy, Pulmonary, and Critical Care Medicine
| | - Megan Griffiths
- University of Texas Southwestern Medical Center, Division of Pediatric Cardiology
| | - Gabriele Grunig
- Divisions of Environmental and Pulmonary Medicine, Department of Medicine, NYU Grossman School of Medicine
| | - W.H. Wilson Tang
- Cleveland Clinic Department of Cardiovascular Medicine, Section of Heart Failure and Transplant Medicine
| | - Joe G. N. Garcia
- University of Arizona College of Medicine – Tucson, Department of Medicine
| | | | | | - Rachel L. Damico
- Johns Hopkins University Division of Pulmonary and Critical Care Medicine
| | - Stephen C. Mathai
- Johns Hopkins University Division of Pulmonary and Critical Care Medicine
| | - Paul M. Hassoun
- Johns Hopkins University Division of Pulmonary and Critical Care Medicine
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12
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Arias-Chávez DJ, Mailloux-Salinas P, Aparicio JL, Bravo G, Gómez-Viquez NL. Combined fructose and sucrose consumption from an early age aggravates cardiac oxidative damage and causes a dilated cardiomyopathy in SHR rats. J Clin Biochem Nutr 2023; 73:205-213. [PMID: 37970552 PMCID: PMC10636576 DOI: 10.3164/jcbn.23-2] [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: 01/10/2023] [Accepted: 04/29/2023] [Indexed: 11/17/2023] Open
Abstract
Obesity increases the risk of arterial hypertension in young adults and favors an early-onset cardiomyopathy by generating oxidative stress. In this sense, indiscriminate consumption of sucrose and fructose sweetened beverages from early ages causes obesity, however its consequences on the heart when there is a genetic predisposition to develop hypertension are not clear. We compared the effects of sucrose, fructose, and their combination in weanling male spontaneously hypertensive rats to determine the relationship between genetic hypertension, obesity, and consumption of these sugars on the degree of cardiac hypertrophy, oxidative stress and Ca2+/calmodulin dependent protein kinase II delta oxidation. Histological, biochemical, and Western blot studies were performed 12 weeks after treatment initiation. We found that chronic consumption of sucrose or fructose leads to obesity, exacerbates genetic arterial hypertension-induced metabolic alterations, and increases cardiac oxidative stress, Ca2+/calmodulin dependent protein kinase II delta oxidation and cardiac hypertrophy. Nonetheless, when sucrose and fructose are consumed together, metabolic alterations worsen and are accompanied by dilated cardiomyopathy. These data suggest that sucrose and fructose combined consumption starting from maternal weaning in rats with genetic predisposition to arterial hypertension accelerates the progression of cardiomyopathy resulting in an early dilated cardiomyopathy.
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Affiliation(s)
- David Julian Arias-Chávez
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional, Mexico City, Mexico. Calz. de los Tenorios 235, Col. Granjas Coapa, Ciudad de México14330, México
| | - Patrick Mailloux-Salinas
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional, Mexico City, Mexico. Calz. de los Tenorios 235, Col. Granjas Coapa, Ciudad de México14330, México
| | - Jessica Ledesma Aparicio
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional, Mexico City, Mexico. Calz. de los Tenorios 235, Col. Granjas Coapa, Ciudad de México14330, México
| | - Guadalupe Bravo
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional, Mexico City, Mexico. Calz. de los Tenorios 235, Col. Granjas Coapa, Ciudad de México14330, México
| | - Norma Leticia Gómez-Viquez
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional, Mexico City, Mexico. Calz. de los Tenorios 235, Col. Granjas Coapa, Ciudad de México14330, México
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13
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Zambach C, Pan J, Gerward S, Fedorowski A, Smith JG, Engström G, Hamrefors V. The relationships between the plasma metabolome and orthostatic blood pressure responses. Sci Rep 2023; 13:18244. [PMID: 37880314 PMCID: PMC10600108 DOI: 10.1038/s41598-023-44226-z] [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: 03/14/2023] [Accepted: 10/05/2023] [Indexed: 10/27/2023] Open
Abstract
Whereas autonomic dysfunction and the metabolic syndrome are clinically associated, the relationships with the plasma metabolome is unknown. We explored the association between orthostatic blood pressure responses and 818 plasma metabolites in middle-aged subjects from the general population. We included 3803 out of 6251 subjects (mean age, 57 years; 52% women) from the Malmö sub-cohort of The Swedish CardioPulmonary bioImage Study with information on smoking habits, diabetes, antihypertensive drug treatment, anthropometrics, hemodynamic measurements and 818 plasma metabolites (mass-spectrometry). The associations between each metabolite and orthostatic systolic blood pressure responses were determined using multivariable linear regression analysis and p values were corrected using the Bonferroni method. Six amino acids, five vitamins, co-factors and carbohydrates, nine lipids and two xenobiotics were associated with orthostatic blood pressure after adjusting for age, gender and systolic blood pressure. After additional adjustments for BMI, diabetes, smoking and antihypertensive treatment, the association remained significant for six lipids, four amino acids and one xenobiotic. Twenty-two out of 818 plasma metabolites were associated with orthostatic blood pressure responses. Eleven metabolites, including lipids in the dihydrosphingomyelin and sphingosine pathways, were independently associated with orthostatic systolic blood pressure responses after additional adjustment for markers of cardio-metabolic disease.
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Affiliation(s)
- Christian Zambach
- Department of Clinical Sciences, Clinical Research Center, Lund University, Box 50332, 20313, Malmö, Sweden.
- Department of Internal Medicine, Skåne University Hospital, Lund, Sweden.
| | - Jingxue Pan
- Department of Clinical Sciences, Clinical Research Center, Lund University, Box 50332, 20313, Malmö, Sweden
- Division of Child Healthcare, Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sofia Gerward
- Department of Clinical Sciences, Clinical Research Center, Lund University, Box 50332, 20313, Malmö, Sweden
| | - Artur Fedorowski
- Department of Clinical Sciences, Clinical Research Center, Lund University, Box 50332, 20313, Malmö, Sweden
- Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - J Gustav Smith
- Department of Cardiology, Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden
- Wallenberg Center for Molecular Medicine and Lund University Diabetes Center, Lund University, Lund, Sweden
- The Wallenberg Laboratory/Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Gunnar Engström
- Department of Clinical Sciences, Clinical Research Center, Lund University, Box 50332, 20313, Malmö, Sweden
| | - Viktor Hamrefors
- Department of Clinical Sciences, Clinical Research Center, Lund University, Box 50332, 20313, Malmö, Sweden
- Department of Cardiology, Skåne University Hospital, Malmö, Sweden
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14
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Changwei L, Bundy JD, Tian L, Zhang R, Chen J, Kelly TN, He J. Examination of Serum Metabolome Altered by Dietary Carbohydrate, Milk Protein, and Soy Protein Interventions Identified Novel Metabolites Associated with Blood Pressure: The ProBP Trial. Mol Nutr Food Res 2023; 67:e2300044. [PMID: 37650262 PMCID: PMC10592004 DOI: 10.1002/mnfr.202300044] [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: 01/25/2023] [Revised: 05/08/2023] [Indexed: 09/01/2023]
Abstract
SCOPE This study aims to discover metabolites of dietary carbohydrate, soy and milk protein supplements and evaluate their roles in blood pressure (BP) regulation in the protein and blood pressure (ProBP), a cross-over trial. METHODS AND RESULTS Plasma metabolites are profiled at pre-trial baseline and after 8 weeks of supplementation with carbohydrate, soy protein, and milk protein, respectively, among 80 ProBP participants. After Bonferroni correction (α = 6.49 × 10-4 ), dietary interventions significantly changed 40 metabolites. Changes of erucate (22:1n9), an omega-9 fatty acid, are positively associated with systolic BP changes (Beta = 1.90, p = 6·27 × 10-4 ). This metabolite is also associated with higher odds of hypertension among 1261 participants of an independent cohort (odds ratio per unit increase = 1.34; 95% confidence interval: 1.07-1.68). High levels of acylcholines dihomo-linolenoyl-choline (p = 4.71E-04) and oleoylcholine (p = 3.48E-04) at baseline predicted larger BP lowering effects of soy protein. Increasing cheese intake during the trial, as reflected by isobutyrylglycine and isovalerylglycine, reduces the BP lowering effect of soy protein. CONCLUSIONS The study identifies molecular signatures of dietary interventions. Erucate (22:1n9) increases systolic BP. Acylcholine enhances and cheese intake reduces the BP lowering effect of soy protein supplement.
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Affiliation(s)
- Li Changwei
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
| | - Joshua D Bundy
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
| | - Ling Tian
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
| | - Ruiyuan Zhang
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
| | - Jing Chen
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
- Department of Medicine, Tulane University School of Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
| | - Tanika N Kelly
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
- Division of Nephrology, Department of Medicine, College of Medicine, University of Illinois Chicago, 820 S. Wood St, Room W420, Chicago, IL, 60612, USA
| | - Jiang He
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
- Department of Medicine, Tulane University School of Medicine, 1440 Canal Street Suite 2000, New Orleans, LA, 70112-2703, USA
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15
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Monga S, Valkovič L, Myerson SG, Neubauer S, Mahmod M, Rider OJ. Role of Cardiac Energetics in Aortic Stenosis Disease Progression: Identifying the High-risk Metabolic Phenotype. Circ Cardiovasc Imaging 2023; 16:e014863. [PMID: 37847766 PMCID: PMC10581424 DOI: 10.1161/circimaging.122.014863] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/01/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Severe aortic stenosis (AS) is associated with left ventricular (LV) hypertrophy and cardiac metabolic alterations with evidence of steatosis and impaired myocardial energetics. Despite this common phenotype, there is an unexplained and wide individual heterogeneity in the degree of hypertrophy and progression to myocardial fibrosis and heart failure. We sought to determine whether the cardiac metabolic state may underpin this variability. METHODS We recruited 74 asymptomatic participants with AS and 13 healthy volunteers. Cardiac energetics were measured using phosphorus spectroscopy to define the myocardial phosphocreatine to adenosine triphosphate ratio. Myocardial lipid content was determined using proton spectroscopy. Cardiac function was assessed by cardiovascular magnetic resonance cine imaging. RESULTS Phosphocreatine/adenosine triphosphate was reduced early and significantly across the LV wall thickness quartiles (Q2, 1.50 [1.21-1.71] versus Q1, 1.64 [1.53-1.94]) with a progressive decline with increasing disease severity (Q4, 1.48 [1.18-1.70]; P=0.02). Myocardial triglyceride content levels were overall higher in all the quartiles with a significant increase seen across the AV pressure gradient quartiles (Q2, 1.36 [0.86-1.98] versus Q1, 1.03 [0.81-1.56]; P=0.034). While all AS groups had evidence of subclinical LV dysfunction with impaired strain parameters, impaired systolic longitudinal strain was related to the degree of energetic impairment (r=0.219; P=0.03). Phosphocreatine/adenosine triphosphate was not only an independent predictor of LV wall thickness (r=-0.20; P=0.04) but also strongly associated with myocardial fibrosis (r=-0.24; P=0.03), suggesting that metabolic changes play a role in disease progression. The metabolic and functional parameters showed comparable results when graded by clinical severity of AS. CONCLUSIONS A gradient of myocardial energetic deficit and steatosis exists across the spectrum of hypertrophied AS hearts, and these metabolic changes precede irreversible LV remodeling and subclinical dysfunction. As such, cardiac metabolism may play an important and potentially causal role in disease progression.
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Affiliation(s)
- Shveta Monga
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom (S.M., L.V., S.G.M., S.N., M.M., O.J.R.)
| | - Ladislav Valkovič
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom (S.M., L.V., S.G.M., S.N., M.M., O.J.R.)
- Department of Imaging Methods, Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia (L.V.)
| | - Saul G. Myerson
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom (S.M., L.V., S.G.M., S.N., M.M., O.J.R.)
| | - Stefan Neubauer
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom (S.M., L.V., S.G.M., S.N., M.M., O.J.R.)
| | - Masliza Mahmod
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom (S.M., L.V., S.G.M., S.N., M.M., O.J.R.)
| | - Oliver J. Rider
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom (S.M., L.V., S.G.M., S.N., M.M., O.J.R.)
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16
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Li J, Minczuk K, Huang Q, Kemp BA, Howell NL, Chordia MD, Roy RJ, Patrie JT, Qureshi Z, Kramer CM, Epstein FH, Carey RM, Kundu BK, Keller SR. Progressive Cardiac Metabolic Defects Accompany Diastolic and Severe Systolic Dysfunction in Spontaneously Hypertensive Rat Hearts. J Am Heart Assoc 2023; 12:e026950. [PMID: 37183873 PMCID: PMC10227297 DOI: 10.1161/jaha.122.026950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 04/14/2023] [Indexed: 05/16/2023]
Abstract
Background Cardiac metabolic abnormalities are present in heart failure. Few studies have followed metabolic changes accompanying diastolic and systolic heart failure in the same model. We examined metabolic changes during the development of diastolic and severe systolic dysfunction in spontaneously hypertensive rats (SHR). Methods and Results We serially measured myocardial glucose uptake rates with dynamic 2-[18F] fluoro-2-deoxy-d-glucose positron emission tomography in vivo in 9-, 12-, and 18-month-old SHR and Wistar Kyoto rats. Cardiac magnetic resonance imaging determined systolic function (ejection fraction) and diastolic function (isovolumetric relaxation time) and left ventricular mass in the same rats. Cardiac metabolomics was performed at 12 and 18 months in separate rats. At 12 months, SHR hearts, compared with Wistar Kyoto hearts, demonstrated increased isovolumetric relaxation time and slightly reduced ejection fraction indicating diastolic and mild systolic dysfunction, respectively, and higher (versus 9-month-old SHR decreasing) 2-[18F] fluoro-2-deoxy-d-glucose uptake rates (Ki). At 18 months, only few SHR hearts maintained similar abnormalities as 12-month-old SHR, while most exhibited severe systolic dysfunction, worsening diastolic function, and markedly reduced 2-[18F] fluoro-2-deoxy-d-glucose uptake rates. Left ventricular mass normalized to body weight was elevated in SHR, more pronounced with severe systolic dysfunction. Cardiac metabolite changes differed between SHR hearts at 12 and 18 months, indicating progressive defects in fatty acid, glucose, branched chain amino acid, and ketone body metabolism. Conclusions Diastolic and severe systolic dysfunction in SHR are associated with decreasing cardiac glucose uptake, and progressive abnormalities in metabolite profiles. Whether and which metabolic changes trigger progressive heart failure needs to be established.
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Affiliation(s)
- Jie Li
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVA
| | - Krzysztof Minczuk
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVA
- Department of Experimental Physiology and PathophysiologyMedical University of BiałystokBialystokPoland
| | - Qiao Huang
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVA
| | - Brandon A. Kemp
- Department of Medicine, Division of Endocrinology and MetabolismUniversity of VirginiaCharlottesvilleVA
| | - Nancy L. Howell
- Department of Medicine, Division of Endocrinology and MetabolismUniversity of VirginiaCharlottesvilleVA
| | - Mahendra D. Chordia
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVA
| | - R. Jack Roy
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVA
| | - James T. Patrie
- Department of Public Health SciencesUniversity of VirginiaCharlottesvilleVA
| | - Zoraiz Qureshi
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVA
- Department of Computer ScienceUniversity of VirginiaCharlottesvilleVA
| | - Christopher M. Kramer
- Department of Medicine, Cardiovascular DivisionUniversity of VirginiaCharlottesvilleVA
| | | | - Robert M. Carey
- Department of Medicine, Division of Endocrinology and MetabolismUniversity of VirginiaCharlottesvilleVA
| | - Bijoy K. Kundu
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVA
- Department of Biomedical EngineeringUniversity of VirginiaCharlottesvilleVA
- Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVA
| | - Susanna R. Keller
- Department of Medicine, Division of Endocrinology and MetabolismUniversity of VirginiaCharlottesvilleVA
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17
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Kovilakath A, Wohlford G, Cowart LA. Circulating sphingolipids in heart failure. Front Cardiovasc Med 2023; 10:1154447. [PMID: 37229233 PMCID: PMC10203217 DOI: 10.3389/fcvm.2023.1154447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/04/2023] [Indexed: 05/27/2023] Open
Abstract
Lack of significant advancements in early detection and treatment of heart failure have precipitated the need for discovery of novel biomarkers and therapeutic targets. Over the past decade, circulating sphingolipids have elicited promising results as biomarkers that premonish adverse cardiac events. Additionally, compelling evidence directly ties sphingolipids to these events in patients with incident heart failure. This review aims to summarize the current literature on circulating sphingolipids in both human cohorts and animal models of heart failure. The goal is to provide direction and focus for future mechanistic studies in heart failure, as well as pave the way for the development of new sphingolipid biomarkers.
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Affiliation(s)
- Anna Kovilakath
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, United States
| | - George Wohlford
- Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, United States
| | - L. Ashley Cowart
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, United States
- Richmond Veteran's Affairs Medical Center, Richmond, VA, United States
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18
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Yu J, Tang Y, Wang Y, Zhou M, Li Y, Hong J, Li C, Xu B, Guo X, Mao J. Serum exosomes derived from spontaneously hypertensive rats induce cardiac hypertrophy in vitro and in vivo by increasing autocrine release of angiotensin II in cardiomyocytes. Biochem Pharmacol 2023; 210:115462. [PMID: 36849061 DOI: 10.1016/j.bcp.2023.115462] [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: 11/27/2022] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 02/27/2023]
Abstract
Identifying the key factors mediating the progression from hypertension to cardiac hypertrophy is critically important for developing a strategy to protect against heart failure. Serum exosomes have been revealed to be involved in the development of cardiovascular disease. In the current study, we found that either serum or serum exosomes derived from SHR induced hypertrophy in H9c2 cardiomyocytes. SHR Exo injection through the tail vein for 8 weeks induced left ventricular wall thickening and decreased cardiac function in C57BL/6 mice. SHR Exo carried the renin-angiotensin system (RAS) proteins AGT, renin, and ACE into cardiomyocytes, which increased the autocrine secretion of Ang II. Moreover, the AT1-type receptor antagonist telmisartan prevented hypertrophy of H9c2 cells induced by SHR Exo.These results identified a novel role of exosomes derived from SHR serum in cardiac hypertrophy and revealed that SHR Exo induced cardiac hypertrophy by carrying AGT, renin, and ACE proteins into cardiomyocytes to increase their autocrine secretion of Ang II. The emergence of this new mechanism will help us better understand how hypertension progresses to cardiac hypertrophy.
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Affiliation(s)
- Jingwei Yu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China; These authors contributed equally to this work
| | - Yuan Tang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China; These authors contributed equally to this work
| | - Yu Wang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China; These authors contributed equally to this work
| | - Mi Zhou
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China; These authors contributed equally to this work
| | - Yanwen Li
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiahuan Hong
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Chunmei Li
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Bin Xu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xinmin Guo
- Department of Ultrasound, Guangzhou Red Cross Hospital, Medical College, Jinan University, Guangzhou, Guangdong 510220, China.
| | - Jianwen Mao
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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19
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Nyrén R, Scherman H, Axelsson J, Chang CL, Olivecrona G, Ericsson M. Visualizing increased uptake of [18F]FDG and [18F]FTHA in kidneys from obese high-fat diet fed C57BL/6J mice using PET/CT ex vivo. PLoS One 2023; 18:e0281705. [PMID: 36787333 PMCID: PMC9928095 DOI: 10.1371/journal.pone.0281705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 01/31/2023] [Indexed: 02/15/2023] Open
Abstract
It is known that high-fat diet (HFD) and/or diabetes may influence substrate preferences and energy demands in the heart preceding diabetic cardiomyopathy. They may also induce structural glomerular changes causing diabetic nephropathy. PET/CT has been utilized to examine uptake of energy substrates, and to study metabolic changes or shifts before onset of metabolic disorders. However, conventional PET/CT scanning of organs with relatively low uptake, such as the kidney, in small animals in vivo may render technical difficulties. To address this issue, we developed a PET/CT ex vivo protocol with radiolabeled glucose and fatty acid analouges, [18F]FDG and [18F]FTHA,to study substrate uptake in mouse kidneys. We also aimed to detect a possible energy substrate shift before onset of diabetic nephropathy. The ex vivo protocol reduced interfering background as well as interindividual variances. We found increased uptake of [18F]FDG and [18F]FTHA in kidneys after HFD, compared to kidneys from young mice on standard chow. Levels of kidney triglycerides also increased on HFD. Lipoprotein lipase (LPL) activity, the enzyme responsible for release of fatty acids from circulating lipoproteins, is normally increased in postprandial mice kidneys. After long-term HFD, we found that LPL activity was suppressed, and could therefore not explain the increased levels of stored triglycerides. Suppressed LPL activity was associated with increased expression of angiopoietin-like protein4, an inhibitor of LPL. HFD did not alter the transcriptional control of some common glucose and fatty acid transporters that may mediate uptake of [18F]FDG and [18F]FTHA. Performing PET/CT ex vivo reduced interfering background and interindividual variances. Obesity and insulin resistance induced by HFD increased the uptake of [18F]FDG and [18F]FTHA and triglyceride accumulation in mouse kidneys. Increased levels of [18F]FDG and [18F]FTHA in obese insulin resistant mice could be used clinically as an indicator of poor metabolic control, and a complementary test for incipient diabetic nephropathy.
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Affiliation(s)
- Rakel Nyrén
- Department of Medical Biosciences/Physiological Chemistry, Umeå University, Umeå, Sweden
- Department of Medical Biosciences/Pathology, Umeå University, Umeå, Sweden
| | - Henrik Scherman
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Jan Axelsson
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Chuchun L. Chang
- Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York, United States of America
| | - Gunilla Olivecrona
- Department of Medical Biosciences/Physiological Chemistry, Umeå University, Umeå, Sweden
| | - Madelene Ericsson
- Department of Medical Biosciences/Physiological Chemistry, Umeå University, Umeå, Sweden
- Umeå Centre for Molecular Medicine, Umeå University, Umeå, Sweden
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20
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The Traditional Chinese Medicine Gedan Jiangya Decoction Alleviates Left Ventricular Hypertrophy via Suppressing the Ras/ERK1/2 Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:6924197. [PMID: 36437833 PMCID: PMC9699742 DOI: 10.1155/2022/6924197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/31/2022] [Accepted: 08/07/2022] [Indexed: 11/19/2022]
Abstract
Gedan Jiangya Decoction (GJD), a Chinese herbal medicine composed of six botanical medicines, was designed to treat hypertension (patent published number (CN114246896A)). The overexpression of the ERK (extracellular signal-regulated kinase) signaling pathway is essential in developing left ventricular hypertrophy (LVH). This study aimed to evaluate GJD's effects on LVH in spontaneously hypertensive rats (SHRs) and examine its potential mechanisms on Ras/ERK1/2 pathway regulation. Thirty-five ten-week-old SHRs were randomly assigned to one of five groups: GJD low dosage, medium dose, high dose, model, and captopril. Wistar–Kyoto (WKY) rats served as the control group. All rats received a 6-week treatment. The following parameters were measured: systolic (SBP) and diastolic blood pressure (DBP), left ventricular mass index (LVMI), and serum TGF-beta1. The pathologic structure was determined by H & E staining and Masson. TGF-beta1, Ras, ERK1/2, and C-Fos levels were determined using western blotting and real-time qPCR. SBP, DBP, and LVMI were reduced significantly in the GJD group compared with the model group. GJD inhibited TGF-beta1, Ras, ERK1/2, and C-Fos expression in LVH. In conclusion, GJD reduced the Ras/ERK1/2 pathway expression, which decreased hypertension-induced heart hypertrophy. GJD may protect hypertension-induced myocardial hypertrophy by altering gene expression patterns in the heart.
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21
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Fang Q, Wang J, Wei J, Long X, Wang Y, He J, Yuan X, Du J. Transcriptomic profile analysis of the left atrium in spontaneously hypertensive rats in the early stage. Front Pharmacol 2022; 13:989636. [PMID: 36324689 PMCID: PMC9620422 DOI: 10.3389/fphar.2022.989636] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 09/28/2022] [Indexed: 11/19/2022] Open
Abstract
Left atrial remodeling, characterized by enlargement and hypertrophy of the left atrium and increased fibrosis, was accompanied by an increased incidence of atrial fibrillation. While before morphological changes at the early stage of hypertension, how overloaded hypertension influences the transcriptomic profile of the left atrium remains unclear. Therefore, RNA-sequencing was performed to define the RNA expressing profiles of left atrium in spontaneously hypertensive rats (SHRs) and normotensive Wistar-Kyoto (WKY) rats as a control group. We also compared the changes in the RNA expression profiles in SHRs treated with an angiotensin receptor blocker (ARB) and angiotensin receptor-neprilysin inhibitor (ARNI) to assess the distinct effects on the left atrium. In total, 1,558 differentially expressed genes were found in the left atrium between WKY rats and SHRs. Bioinformatics analysis showed that these mRNAs could regulate upstream pathways in atrial remodeling through atrial fibrosis, inflammation, electrical remodeling, and cardiac metabolism. The regulated transcripts detected in the left atrial tissue in both the ARB-treated and ARNI-treated groups were related to metabolism. In contrast to the ARB-treated rates, the transcripts in ARNI-treated rats were mapped to the cyclic guanosine monophosphate-protein kinase G signaling pathway.
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Affiliation(s)
- Qinghua Fang
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Wang
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiangjun Wei
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xianglin Long
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yao Wang
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiacheng He
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Yuan
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jianlin Du
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Jianlin Du,
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22
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Khwaounjoo P, Sands GB, LeGrice IJ, Ramulgun G, Ashton JL, Montgomery JM, Gillis AM, Smaill BH, Trew ML. Multimodal imaging shows fibrosis architecture and action potential dispersion are predictors of arrhythmic risk in spontaneous hypertensive rats. J Physiol 2022; 600:4119-4135. [PMID: 35984854 PMCID: PMC9544618 DOI: 10.1113/jp282526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 08/08/2022] [Indexed: 11/08/2022] Open
Abstract
Hypertensive heart disease (HHD) increases risk of ventricular tachycardia (VT) and ventricular fibrillation (VF). The roles of structural vs. electrophysiological remodelling and age vs. disease progression are not fully understood. This cross-sectional study of cardiac alterations through HHD investigates mechanistic contributions to VT/VF risk. Risk was electrically assessed in Langendorff-perfused, spontaneously hypertensive rat hearts at 6, 12 and 18 months, and paced optical membrane voltage maps were acquired from the left ventricular (LV) free wall epicardium. Distributions of LV patchy fibrosis and 3D cellular architecture in representative anterior LV mid-wall regions were quantified from macroscopic and microscopic fluorescence images of optically cleared tissue. Imaging showed increased fibrosis from 6 months, particularly in the inner LV free wall. Myocyte cross-section increased at 12 months, while inter-myocyte connections reduced markedly with fibrosis. Conduction velocity decreased from 12 months, especially transverse to the myofibre direction, with rate-dependent anisotropy at 12 and 18 months, but not earlier. Action potential duration (APD) increased when clustered by age, as did APD dispersion at 12 and 18 months. Among 10 structural, functional and age variables, the most reliably linked were VT/VF risk, general LV fibrosis, a measure quantifying patchy fibrosis, and non-age clustered APD dispersion. VT/VF risk related to a quantified measure of patchy fibrosis, but age did not factor strongly. The findings are consistent with the notion that VT/VF risk is associated with rate-dependent repolarization heterogeneity caused by structural remodelling and reduced lateral electrical coupling between LV myocytes, providing a substrate for heterogeneous intramural activation as HHD progresses. KEY POINTS: There is heightened arrhythmic risk with progression of hypertensive heart disease. Risk is related to increasing left ventricular fibrosis, but the nature of this relationship has not been quantified. This study is a novel systematic characterization of changes in active electrical properties and fibrotic remodelling during progression of hypertensive heart disease in a well-established animal disease model. Arrhythmic risk is predicted by several left ventricular measures, in particular fibrosis quantity and structure, and epicardial action potential duration dispersion. Age alone is not a good predictor of risk. An improved understanding of links between arrhythmic risk and fibrotic architectures in progressive hypertensive heart disease aids better interpretation of late gadolinium-enhanced cardiac magnetic resonance imaging and electrical mapping signals.
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Affiliation(s)
| | - Gregory B. Sands
- Auckland Bioengineering InstituteUniversity of AucklandAucklandNew Zealand
| | - Ian J. LeGrice
- Auckland Bioengineering InstituteUniversity of AucklandAucklandNew Zealand,Department of PhysiologyUniversity of AucklandAucklandNew Zealand
| | - Girish Ramulgun
- Auckland Bioengineering InstituteUniversity of AucklandAucklandNew Zealand,IHU‐LirycUniversity of BordeauxBordeauxFrance
| | - Jesse L. Ashton
- Auckland Bioengineering InstituteUniversity of AucklandAucklandNew Zealand,Department of PhysiologyUniversity of AucklandAucklandNew Zealand
| | | | - Anne M. Gillis
- Libin Cardiovascular Institute of AlbertaUniversity of CalgaryCalgaryAlbertaCanada
| | - Bruce H. Smaill
- Auckland Bioengineering InstituteUniversity of AucklandAucklandNew Zealand
| | - Mark L. Trew
- Auckland Bioengineering InstituteUniversity of AucklandAucklandNew Zealand
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23
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Quigg M, Kundu B. Dynamic FDG-PET demonstration of functional brain abnormalities. Ann Clin Transl Neurol 2022; 9:1487-1497. [PMID: 36069052 PMCID: PMC9463948 DOI: 10.1002/acn3.51546] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 11/27/2022] Open
Abstract
Positron emission tomography with fluorine‐18 fluorodeoxyglucose (18F‐FDG‐PET) has been used over 3 decades to map patterns of brain glucose metabolism to evaluate normal brain function or demonstrate abnormalities of metabolism in brain disorders. Traditional PET maps patterns of absolute tracer uptake but has demonstrated shortcomings in disorders such as brain neoplasm or focal epilepsy in the ability to resolve normally from pathological tissue. In this review, we describe an alternative process of metabolic mapping, dynamic PET. This new technology quantifies the dynamics of tracer uptake and decays with the goal of improving the functional mapping of the desired metabolic activity in the target organ. We discuss technical implementation and findings of initial pilot studies in brain tumor treatment and epilepsy surgery.
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Affiliation(s)
- Mark Quigg
- Department of Neurology, University of Virginia, Charlottesville, Virginia, 22908, USA
| | - Bijoy Kundu
- Departments of Radiology & Medical Imaging and Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
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24
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Zhang M, Guo F, Li X, Xian M, Wang T, Wu H, Wei J, Huang Y, Cui X, Wu S, Gong M, Yang H. Yi-Xin-Shu capsule ameliorates cardiac hypertrophy by regulating RB/HDAC1/GATA4 signaling pathway based on proteomic and mass spectrometry image analysis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 103:154185. [PMID: 35679794 DOI: 10.1016/j.phymed.2022.154185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/28/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Cardiac hypertrophy (CH) forms the main pathological basis of chronic heart failure (CHF). Mitigating and preventing CH is the key strategy for the treatment of ventricular remodeling in CHF. Yi-Xin-Shu capsule (YXS) has been commonly applied in the clinical treatment of CHF in Asian countries for several decades. However, the underlying mechanism of YXS has not been revealed yet. PURPOSE To assess the efficiency of YXS in CH and identify its potential therapeutic targets for the managing of CH. METHOD Ultrasonic cardiogram was used to evaluate the cardiac function of CH rats. Hematein Eosin (HE)-staining, Masson-staining and transmission electron microscope were used to measure the morphological changes, cardiac fibrosis degree and ultrastructure characteristics of cardiomyocytes, respectively. ELISA was used to detect the myocardial injury biomarkers. Then, the potential targets regulated by YXS were screened out via proteomic analysis and mass spectrometry image analysis. Finally, the targets were validated by real-time quantitative (RT-q) PCR, immunofluorescence, immunohistochemistry, and western-blotting methods. RESULTS YXS improved the cardiac function of CH rats and attenuated the injuries in morphology and subcellular structure of cardiomyocytes. A core protein-protein interaction network was established on differentially expressed proteins (DEP) using proteomics analysis. GATA binding protein 4 (GATA4) was identified as the key target regulated by YXS. The results of mass spectrometry image analysis indicated that the expressions of histone deacetylase 1 (HDAC1) and retinoblastoma (RB) could also be regulated by YXS. Further valuative experiments showed that YXS may attenuate CH by regulating the RB/HDAC1/GATA4 signaling pathway. CONCLUSIONS For the first time, this study discloses the precise mechanism investigation of the efficacy of YXS against CH. These data demonstrate that YXS may protect against CH by regulating the RB/HDAC1/GATA4 signaling pathway.
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Affiliation(s)
- Minyu Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing 100069, China
| | - Feifei Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xianyu Li
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Minghua Xian
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Tingting Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Hongwei Wu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Junying Wei
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ying Huang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiangning Cui
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Sha Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing 100069, China
| | - Muxin Gong
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing 100069, China.
| | - Hongjun Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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25
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Of Mouse and Man: Cross-Species Characterization of Hypertensive Cardiac Remodeling. Int J Mol Sci 2022; 23:ijms23147709. [PMID: 35887055 PMCID: PMC9323458 DOI: 10.3390/ijms23147709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 02/07/2023] Open
Abstract
Hypertension is a major public health concern and poses a significant risk for sudden cardiac death (SCD). However, the characterisation of human tissues tends to be macroscopic, with little appreciation for the quantification of the pathological remodelling responsible for the advancement of the disease. While the components of hypertensive remodelling are well established, the timeline and comparative quantification of pathological changes in hypertension have not been shown before. Here, we sought to identify the phasing of cardiac remodelling with hypertension using post-mortem tissue from SCD patients with early and advanced hypertensive heart disease (HHD). In order to study and quantify the progression of phenotypic changes, human specimens were contrasted to a well-described angiotensin-II-mediated hypertensive mouse model. While cardiomyocyte hypertrophy is an early adaptive response in the mouse that stabilises in established hypertension and declines as the disease progresses, this finding did not translate to the human setting. In contrast, optimising fibrosis quantification methods and applying them to each setting identified perivascular fibrosis as the prevailing possible cause for overall disease progression. Indeed, assessing myocardial inflammation highlights CD45+ inflammatory cell infiltration that precedes fibrosis and is an early-phase event in response to elevated arterial pressures that may underscore perivascular remodelling. Along with aetiology insight, we highlight cross-species comparison for quantification of cardiac remodelling in human hypertension. As such, this platform could assist with the development of therapies specific to the disease phase rather than targeting global components of hypertension, such as blood pressure lowering.
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26
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Rossi BRO, Philbois SV, Maida KD, Sánchez-Delgado JC, Veiga AC, Souza HCD. Role of aerobic physical training on cardiac autonomic and morphophysiological dysfunction in hypertensive rats subjected to ovarian hormone deprivation. Braz J Med Biol Res 2022; 55:e11916. [PMID: 35584451 PMCID: PMC9113528 DOI: 10.1590/1414-431x2022e11916] [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: 11/26/2021] [Accepted: 03/10/2022] [Indexed: 11/22/2022] Open
Abstract
Here we investigated the effects of physical training on cardiovascular autonomic control and cardiac morphofunctional parameters in spontaneously hypertensive rats (SHRs) subjected to ovarian hormone deprivation. Forty-eight 10-week-old SHRs were divided into two groups: ovariectomized (OVX, n=24) and sham (SHAM, n=24). Half of each group (n=12) was trained by swimming for 12 weeks (OVX-T and SHAM-T). Cardiac morphology and functionality were assessed using echocardiography, and autonomic parameters were assessed using double pharmacological autonomic block, baroreflex sensitivity (BRS), and analyses of heart rate variability (HRV) and blood pressure variability (BPV). Ovariectomy did not influence the cardiac autonomic tonus balance unlike physical training, which favored greater participation of the vagal autonomic tonus. Ovariectomy and aerobic physical training did not modify HRV and BRS, unlike BPV, for which both methods reduced low-frequency oscillations, suggesting a reduction in sympathetic vascular modulation. Untrained ovariectomized animals showed a reduced relative wall thickness (RWT) and increased diastolic and systolic volumes and left ventricular diameters, resulting in increased stroke volume. Trained ovariectomized animals presented reduced posterior wall thickness and RWT as well as increased final diastolic diameter, left ventricular mass, and stroke volume. Ovarian hormone deprivation in SHRs promoted morphofunctional adaptations but did not alter the evaluation of cardiac autonomic parameters. In turn, aerobic physical training contributed to a more favorable cardiac autonomic balance to the vagal autonomic component and promoted morphological adaptations but had little effect on cardiac functionality.
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Affiliation(s)
- B R O Rossi
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - S V Philbois
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - K D Maida
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - J C Sánchez-Delgado
- Faculty of Physical Culture, Sports and Recreation, University Santo Tomás, Bucaramanga, Colombia
| | - A C Veiga
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - H C D Souza
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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27
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Haidar A, Taegtmeyer H. Strategies for Imaging Metabolic Remodeling of the Heart in Obesity and Heart Failure. Curr Cardiol Rep 2022; 24:327-335. [PMID: 35107704 PMCID: PMC9074778 DOI: 10.1007/s11886-022-01650-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/17/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Define early myocardial metabolic changes among patients with obesity and heart failure, and to describe noninvasive methods and their applications for imaging cardiac metabolic remodeling. RECENT FINDINGS Metabolic remodeling precedes, triggers, and sustains functional and structural remodeling in the stressed heart. Alterations in cardiac metabolism can be assessed by using a variety of molecular probes. The glucose tracer analog, 18F-FDG, and the labeled tracer 11C-palmitate are still the most commonly used tracers to assess glucose and fatty acid metabolism, respectively. The development of new tracer analogs and imaging agents, including those targeting the peroxisome proliferator-activated receptor (PPAR), provides new opportunities for imaging metabolic activities at a molecular level. While the use of cardiac magnetic resonance spectroscopy in the clinical setting is limited to the assessment of intramyocardial and epicardial fat, new technical improvements are likely to increase its usage in the setting of heart failure. Noninvasive imaging methods are an effective tool for the serial assessment of alterations in cardiac metabolism, either during disease progression, or in response to treatment.
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Affiliation(s)
- Amier Haidar
- McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Heinrich Taegtmeyer
- Division of Cardiology, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, MSB 1.220, Houston, TX, 77030, USA.
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Tirandi A, Carbone F, Montecucco F, Liberale L. The role of metabolic syndrome in sudden cardiac death risk: Recent evidence and future directions. Eur J Clin Invest 2022; 52:e13693. [PMID: 34714544 PMCID: PMC9286662 DOI: 10.1111/eci.13693] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/23/2021] [Accepted: 09/28/2021] [Indexed: 12/14/2022]
Abstract
Metabolic syndrome (MetS) is a frequent condition whose deleterious effects on the cardiovascular system are often underestimated. MetS is nowadays considered a real pandemic with an estimated prevalence of 25% in general population. Individuals with MetS are at high risk of sudden cardiac death (SCD) as this condition accounts for 50% of all cardiac deaths in such a population. Of interest, recent studies demonstrated that individuals with MetS show 70% increased risk of SCD even without previous history of coronary heart disease (CHD). However, little is known about the interplay between the two conditions. MetS is a complex disease determined by genetic predisposition, unhealthy lifestyle and ageing with deleterious effects on different organs. MetS components trigger a systemic chronic low-grade pro-inflammatory state, associated with excess of sympathetic activity, cardiac hypertrophy, arrhythmias and atherosclerosis. Thus, MetS has an important burden on the cardiovascular system as demonstrated by both preclinical and clinical evidence. The aim of this review is to summarize recent evidence concerning the association between MetS and SCD, showing possible common aetiological processes, and to indicate prospective for future studies and therapeutic targets.
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Affiliation(s)
- Amedeo Tirandi
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Federico Carbone
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy
| | - Fabrizio Montecucco
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy
| | - Luca Liberale
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,Center for Molecular Cardiology, University of Zürich, Schlieren, Switzerland
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29
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Donertas Ayaz B, Oliveira AC, Malphurs WL, Redler T, de Araujo AM, Sharma RK, Sirmagul B, Zubcevic J. Central Administration of Hydrogen Sulfide Donor NaHS Reduces Iba1-Positive Cells in the PVN and Attenuates Rodent Angiotensin II Hypertension. Front Neurosci 2021; 15:690919. [PMID: 34602965 PMCID: PMC8479468 DOI: 10.3389/fnins.2021.690919] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 08/10/2021] [Indexed: 12/21/2022] Open
Abstract
Hydrogen sulfide (H2S) is a gaseous signaling molecule with neuromodulatory, anti-inflammatory, and anti-hypertensive effects. Here, we investigate whether chronic intracerebroventricular (ICV) infusion of sodium hydrosulfide (NaHS), an H2S donor, can alleviate angiotensin II (Ang II)-induced hypertension (HTN), improve autonomic function, and impact microglia in the paraventricular nucleus (PVN) of the hypothalamus, a brain region associated with autonomic control of blood pressure (BP) and neuroinflammation in HTN. Chronic delivery of Ang II (200 ng/kg/min, subcutaneous) for 4 weeks produced a typical increase in BP and sympathetic drive and elevated the number of ionized calcium binding adaptor molecule 1-positive (Iba1+) cells in the PVN of male, Sprague-Dawley rats. ICV co-infusion of NaHS (at 30 and/or 60 nmol/h) significantly attenuated these effects of Ang II. Ang II also increased the abundance of cecal Deltaproteobacteria and Desulfovibrionales, among others, which was prevented by ICV NaHS co-infusion at 30 and 60 nmol/h. We observed no differences in circulating H2S between the groups. Our results suggest that central H2S may alleviate rodent HTN independently from circulating H2S via effects on autonomic nervous system and PVN microglia.
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Affiliation(s)
- Basak Donertas Ayaz
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
- Department of Pharmacology, College of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Aline C. Oliveira
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, United States
| | - Wendi L. Malphurs
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Ty Redler
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Alan Moreira de Araujo
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Ravindra K. Sharma
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, United States
| | - Basar Sirmagul
- Department of Pharmacology, College of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Jasenka Zubcevic
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
- Department of Physiology and Pharmacology, Center for Hypertension and Precision Medicine, College of Medicine, University of Toledo, Toledo, OH, United States
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30
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Liu J, Hu J, Tan L, Zhou Q, Wu X. Abnormalities in lysine degradation are involved in early cardiomyocyte hypertrophy development in pressure-overloaded rats. BMC Cardiovasc Disord 2021; 21:403. [PMID: 34418957 PMCID: PMC8379758 DOI: 10.1186/s12872-021-02209-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 08/13/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Cardiomyocyte metabolism changes before cardiac remodeling, but its role in early cardiac hypertrophy detection remains unclear. This study investigated early changes in plasma metabolomics in a pressure-overload cardiac hypertrophy model induced by transverse aortic constriction (TAC). METHODS The TAC model was constructed by partly ligating the aortic arch. Twelve Sprague-Dawley rats were randomly divided into the TAC group (n = 6) and sham group (n = 6). Three weeks after surgery, cardiac echocardiography was performed to assess cardiac remodeling and function. Hematoxylin/eosin (HE), Masson, and wheat germ agglutinin (WGA) stains were used to observe pathological changes. Plasma metabolites were detected by UPLC-QTOFMS and Q-TOFMS. Specific metabolites were screened by orthogonal partial least squares discriminant analysis (OPLS-DA). Metabolic pathways were characterized by Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and the predictive value of the screened metabolites was analyzed by receiver operating characteristic (ROC) curve analysis. RESULTS Three weeks after surgery, the TAC and sham groups had similar left heart function and interventricular septum and diastolic left ventricular posterior wall thicknesses. However, on pathological examination, the cross-sectional area of cardiomyocytes and myocardial fibrosis severity were significantly elevated in TAC rats. OPLS-DA showed different metabolic patterns between the TAC and sham groups. Based on the criteria VIP > 1 and P < 0.05, 13 metabolites were screened out. KEGG analysis identified disrupted lysine degradation through the related metabolites 5-aminopentanoic acid, N6-acetyl-L-lysine, and L-lysine, with areas under the ROC curve (AUCs) of 0.917, 0.889, and 0.806, respectively, for predicting compensated cardiomyocyte hypertrophy. CONCLUSION Disruption of lysine degradation might be involved in early cardiac hypertrophy development, and related metabolites might be potential predictive and interventional targets for subclinical cardiomyocyte hypertrophy.
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Affiliation(s)
- Jialing Liu
- Cardiovascular Department of the Second Affiliated Hospital of Chongqing Medical University, NO.74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China
| | - Junhao Hu
- Cardiovascular Department of the Second Affiliated Hospital of Chongqing Medical University, NO.74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China
| | - Lanlan Tan
- Cardiovascular Department of the Second Affiliated Hospital of Chongqing Medical University, NO.74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China
| | - Qi Zhou
- Cardiovascular Department of the Second Affiliated Hospital of Chongqing Medical University, NO.74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China.
| | - Xiaojing Wu
- Cardiovascular Department of Shenzhen University General Hospital and Shenzhen University Clinical Medical Academy, NO.1098 Xueyuan Street, Nanshan District, Shenzhen, 518060, People's Republic of China.
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31
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Role of metabolomics in identifying cardiac hypertrophy: an overview of the past 20 years of development and future perspective. Expert Rev Mol Med 2021; 23:e8. [PMID: 34376261 DOI: 10.1017/erm.2021.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Cardiac hypertrophy (CH) is an augmentation of either the right ventricular or the left ventricular mass in order to compensate for the increase of work load on the heart. Metabolic abnormalities lead to histological changes of cardiac myocytes and turn into CH. The molecular mechanisms that lead to initiate CH have been of widespread concern, hence the development of the new field of research, metabolomics: one 'omics' approach that can reveal comprehensive information of the paradigm shift of metabolic pathways network in contrast to individual enzymatic reaction-based metabolites, have attempted and until now only 19 studies have been conducted using experimental animal and human specimens. Nuclear magnetic resonance spectroscopy and mass spectrometry-based metabolomics studies have found that CH is a metabolic disease and is mainly linked to the harmonic imbalance of glycolysis, citric acid cycle, amino acids and lipid metabolism. The current review will summarise the main outcomes of the above mentioned 19 studies that have expanded our understanding of the molecular mechanisms that may lead to CH and eventually to heart failure.
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Abstract
Alterations in cardiac energy metabolism contribute to the severity of heart failure. However, the energy metabolic changes that occur in heart failure are complex and are dependent not only on the severity and type of heart failure present but also on the co-existence of common comorbidities such as obesity and type 2 diabetes. The failing heart faces an energy deficit, primarily because of a decrease in mitochondrial oxidative capacity. This is partly compensated for by an increase in ATP production from glycolysis. The relative contribution of the different fuels for mitochondrial ATP production also changes, including a decrease in glucose and amino acid oxidation, and an increase in ketone oxidation. The oxidation of fatty acids by the heart increases or decreases, depending on the type of heart failure. For instance, in heart failure associated with diabetes and obesity, myocardial fatty acid oxidation increases, while in heart failure associated with hypertension or ischemia, myocardial fatty acid oxidation decreases. Combined, these energy metabolic changes result in the failing heart becoming less efficient (ie, a decrease in cardiac work/O2 consumed). The alterations in both glycolysis and mitochondrial oxidative metabolism in the failing heart are due to both transcriptional changes in key enzymes involved in these metabolic pathways, as well as alterations in NAD redox state (NAD+ and nicotinamide adenine dinucleotide levels) and metabolite signaling that contribute to posttranslational epigenetic changes in the control of expression of genes encoding energy metabolic enzymes. Alterations in the fate of glucose, beyond flux through glycolysis or glucose oxidation, also contribute to the pathology of heart failure. Of importance, pharmacological targeting of the energy metabolic pathways has emerged as a novel therapeutic approach to improving cardiac efficiency, decreasing the energy deficit and improving cardiac function in the failing heart.
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Affiliation(s)
- Gary D Lopaschuk
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada (G.D.L., Q.G.K.)
| | - Qutuba G Karwi
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada (G.D.L., Q.G.K.)
| | - Rong Tian
- Mitochondria and Metabolism Center, University of Washington, Seattle (R.T.)
| | - Adam R Wende
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham (A.R.W.)
| | - E Dale Abel
- Division of Endocrinology and Metabolism, University of Iowa Carver College of Medicine, Iowa City (E.D.A.).,Fraternal Order of Eagles Diabetes Research Center, University of Iowa Carver College of Medicine, Iowa City (E.D.A.)
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33
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Tomaz de Castro QJ, Araujo CM, Watai PY, de Castro E Silva SS, de Lima WG, Becker LK, Locatelli J, Guimarães HN, Grabe-Guimarães A. Effects of physical exercise combined with captopril or losartan on left ventricular hypertrophy of hypertensive rats. Clin Exp Hypertens 2021; 43:536-549. [PMID: 33870805 DOI: 10.1080/10641963.2021.1907399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background: Left ventricular hypertrophy (LVH) is an endpoint of hypertensive cardiac alterations. Renin-angiotensin-aldosterone system (RAAS) blockers are among the most effective on LVH regression. Physical exercise combined to antihypertensive drug contributes to arterial pressure (AP) control and LVH prevention. We evaluated the effects of physical exercise combined to captopril or losartan during eight weeks for spontaneously hypertensive rats (SHR) on some cardiac parameters.Methods: SHR (n=5-6 per group) were sedentary or trained 5 days a week in treadmill during 8 weeks; and they were treated with daily oral captopril (12.5, 25, or 50mg/kg), losartan (2.5, 5, or 10mg/kg), or vehicle. At the end, it was obtained systolic AP (SAP), electrocardiogram (ECG), and hearts metalloproteinase 2 (MMP-2) activity and histology.Results: Captopril 25 and 50 mg/kg, and losartan 10 mg/kg lowered SAP of sedentary and trained SHR. Losartan 5 mg/kg combined with physical exercise also lowered SAP. Combined with exercise, captopril 50 mg/kg lowered 13.6% of QT interval, 14.2% of QTc interval, and 22.8% of Tpeak-Tend compared to sedentary SHR. Losartan 5 and 10mg/kg lowered QT interval of sedentary and trained SHR. Losartan 2.5, 5 and 10mg/kg combined with physical exercise lowered respectively 25.4%, 24.8%, and 31.8% of MMP-2 activity. Losartan (10mg/kg) combined with exercise reduced cardiomyocyte diameter.Conclusion: These data support the hypothesis of physical exercise combined with RAAS blockers could improve the benefits on hypertensive LVH treatment.
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Affiliation(s)
| | - Carolina Morais Araujo
- Pharmaceutical Science Program (CiPharma), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Patrícia Yoshie Watai
- Pharmaceutical Science Program (CiPharma), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | | | | | | | - Jamille Locatelli
- Sports Center (CEDUFOP), Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Homero Nogueira Guimarães
- Department of Electrical Engineering, Federal University of Minas Gerais, Belo Horizonte,Minas Gerais, Brazil
| | - Andrea Grabe-Guimarães
- Pharmaceutical Science Program (CiPharma), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
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Massey JC, Seshadri V, Paul S, Mińczuk K, Molinos C, Li J, Kundu BK. Model Corrected Blood Input Function to Compute Cerebral FDG Uptake Rates From Dynamic Total-Body PET Images of Rats in vivo. Front Med (Lausanne) 2021; 8:618645. [PMID: 33898476 PMCID: PMC8058193 DOI: 10.3389/fmed.2021.618645] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 02/15/2021] [Indexed: 12/17/2022] Open
Abstract
Recently, we developed a three-compartment dual-output model that incorporates spillover (SP) and partial volume (PV) corrections to simultaneously estimate the kinetic parameters and model-corrected blood input function (MCIF) from dynamic 2-[18F] fluoro-2-deoxy-D-glucose positron emission tomography (FDG PET) images of mouse heart in vivo. In this study, we further optimized this model and utilized the estimated MCIF to compute cerebral FDG uptake rates, Ki, from dynamic total-body FDG PET images of control Wistar–Kyoto (WKY) rats and compared to those derived from arterial blood sampling in vivo. Dynamic FDG PET scans of WKY rats (n = 5), fasted for 6 h, were performed using the Albira Si Trimodal PET/SPECT/CT imager for 60 min. Arterial blood samples were collected for the entire imaging duration and then fitted to a seven-parameter function. The 60-min list mode PET data, corrected for attenuation, scatter, randoms, and decay, were reconstructed into 23 time bins. A 15-parameter dual-output model with SP and PV corrections was optimized with two cost functions to compute MCIF. A four-parameter compartment model was then used to compute cerebral Ki. The computed area under the curve (AUC) and Ki were compared to that derived from arterial blood samples. Experimental and computed AUCs were 1,893.53 ± 195.39 kBq min/cc and 1,792.65 ± 155.84 kBq min/cc, respectively (p = 0.76). Bland–Altman analysis of experimental vs. computed Ki for 35 cerebral regions in WKY rats revealed a mean difference of 0.0029 min−1 (~13.5%). Direct (AUC) and indirect (Ki) comparisons of model computations with arterial blood sampling were performed in WKY rats. AUC and the downstream cerebral FDG uptake rates compared well with that obtained using arterial blood samples. Experimental vs. computed cerebral Ki for the four super regions including cerebellum, frontal cortex, hippocampus, and striatum indicated no significant differences.
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Affiliation(s)
- James C Massey
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States
| | - Vikram Seshadri
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States
| | - Soumen Paul
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States
| | - Krzysztof Mińczuk
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States.,Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Białystok, Poland
| | - Cesar Molinos
- Preclinical Imaging Division, Bruker Biospin, Billerica, MA, United States
| | - Jie Li
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States
| | - Bijoy K Kundu
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States.,Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, United States.,Cardiovascular Research Center, University of Virginia, Charlottesville, VA, United States
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Miotto DS, Duchatsch F, Macedo AG, Ruiz TFR, Vicentini CA, Amaral SL. Perindopril Reduces Arterial Pressure and Does Not Inhibit Exercise-Induced Angiogenesis in Spontaneously Hypertensive Rats. J Cardiovasc Pharmacol 2021; 77:519-528. [PMID: 33394824 DOI: 10.1097/fjc.0000000000000977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 12/09/2020] [Indexed: 12/17/2022]
Abstract
ABSTRACT Sympathetic activity, arteriolar structure, and angiogenesis are important mechanisms modulating hypertension and this study aimed to analyze the effects of perindopril treatment, associated or not with exercise training, on the mechanisms that control blood pressure (BP) in hypertensive rats. Spontaneously hypertensive rats (SHR) were allocated into 4 groups: 1/sedentary (S); 2/perindopril (P, 3.0 mg/kg/d); 3/trained (T); and 4/trained + perindopril (TP). Wistar rats were used as normotensive sedentary control group. SHR were assigned to undergo a treadmill training (T) or were kept sedentary. Heart rate, BP, sympathetic activity to the vessels (LF-SBP), and skeletal muscle and myocardial morphometric analyses were performed. BP was significantly lower after all 3 strategies, compared with S and was accompanied by lower LF-SBP (-76%, -53%, and -44%, for P, T, and TP, respectively). Arteriolar vessel wall cross-sectional area was lower after treatments (-56%, -52%, and -56%, for P, T, and TP, respectively), and only TP presented higher arteriolar lumen area. Capillary rarefaction was present in soleus muscle and myocardium in S group and both trained groups presented higher vessel density, although perindopril attenuated this increase in soleus muscle. Although myocyte diameter was not different between groups, myocardial collagen deposition area, higher in S group, was lower after 3 strategies. In conclusion, we may suggest that perindopril could be an option for the hypertensive people who practice exercise and need a specific pharmacological treatment to reach a better BP control, mainly because training-induced angiogenesis is an important response to facilitate blood flow perfusion and oxygen uptake and perindopril did not attenuate this response.
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Affiliation(s)
- Danyelle S Miotto
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil
| | - Francine Duchatsch
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil
| | - Anderson G Macedo
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil
| | - Thalles F R Ruiz
- Department of Biology, Institute of Biosciences, Humanities and Exact Sciences- UNESP, School of Sciences, São José do Rio Preto/SP, Brazil; and
| | | | - Sandra L Amaral
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil
- Physical Education, UNESP, School of Sciences, Bauru/SP, Brazil
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36
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Ramachandra CJA, Cong S, Chan X, Yap EP, Yu F, Hausenloy DJ. Oxidative stress in cardiac hypertrophy: From molecular mechanisms to novel therapeutic targets. Free Radic Biol Med 2021; 166:297-312. [PMID: 33675957 DOI: 10.1016/j.freeradbiomed.2021.02.040] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/11/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
When faced with increased workload the heart undergoes remodelling, where it increases its muscle mass in an attempt to preserve normal function. This is referred to as cardiac hypertrophy and if sustained, can lead to impaired contractile function. Experimental evidence supports oxidative stress as a critical inducer of both genetic and acquired forms of cardiac hypertrophy, a finding which is reinforced by elevated levels of circulating oxidative stress markers in patients with cardiac hypertrophy. These observations formed the basis for using antioxidants as a therapeutic means to attenuate cardiac hypertrophy and improve clinical outcomes. However, the use of antioxidant therapies in the clinical setting has been associated with inconsistent results, despite antioxidants having been shown to exert protection in several animal models of cardiac hypertrophy. This has forced us to revaluate the mechanisms, both upstream and downstream of oxidative stress, where recent studies demonstrate that apart from conventional mediators of oxidative stress, metabolic disturbances, mitochondrial dysfunction and inflammation as well as dysregulated autophagy and protein homeostasis contribute to disease pathophysiology through mechanisms involving oxidative stress. Importantly, novel therapeutic targets have been identified to counteract oxidative stress and attenuate cardiac hypertrophy but more interestingly, the repurposing of drugs commonly used to treat metabolic disorders, hypertension, peripheral vascular disease, sleep disorders and arthritis have also been shown to improve cardiac function through suppression of oxidative stress. Here, we review the latest literature on these novel mechanisms and intervention strategies with the aim of better understanding the complexities of oxidative stress for more precise targeted therapeutic approaches to prevent cardiac hypertrophy.
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Affiliation(s)
- Chrishan J A Ramachandra
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore.
| | - Shuo Cong
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; Yong Loo Lin School of Medicine, National University Singapore, Singapore
| | - Xavier Chan
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; Faculty of Science, National University of Singapore, Singapore
| | - En Ping Yap
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; Yong Loo Lin School of Medicine, National University Singapore, Singapore
| | - Fan Yu
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; Yong Loo Lin School of Medicine, National University Singapore, Singapore
| | - Derek J Hausenloy
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; Yong Loo Lin School of Medicine, National University Singapore, Singapore; The Hatter Cardiovascular Institute, University College London, London, UK; Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taiwan
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37
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Geraets IME, Coumans WA, Strzelecka A, Schönleitner P, Antoons G, Schianchi F, Willemars MMA, Kapsokalyvas D, Glatz JFC, Luiken JJFP, Nabben M. Metabolic Interventions to Prevent Hypertrophy-Induced Alterations in Contractile Properties In Vitro. Int J Mol Sci 2021; 22:ijms22073620. [PMID: 33807195 PMCID: PMC8037191 DOI: 10.3390/ijms22073620] [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: 03/02/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 12/13/2022] Open
Abstract
(1) Background: The exact mechanism(s) underlying pathological changes in a heart in transition to hypertrophy and failure are not yet fully understood. However, alterations in cardiac energy metabolism seem to be an important contributor. We characterized an in vitro model of adrenergic stimulation-induced cardiac hypertrophy for studying metabolic, structural, and functional changes over time. Accordingly, we investigated whether metabolic interventions prevent cardiac structural and functional changes; (2) Methods: Primary rat cardiomyocytes were treated with phenylephrine (PE) for 16 h, 24 h, or 48 h, whereafter hypertrophic marker expression, protein synthesis rate, glucose uptake, and contractile function were assessed; (3) Results: 24 h PE treatment increased expression of hypertrophic markers, phosphorylation of hypertrophy-related signaling kinases, protein synthesis, and glucose uptake. Importantly, the increased glucose uptake preceded structural and functional changes, suggesting a causal role for metabolism in the onset of PE-induced hypertrophy. Indeed, PE treatment in the presence of a PAN-Akt inhibitor or of a GLUT4 inhibitor dipyridamole prevented PE-induced increases in cellular glucose uptake and ameliorated PE-induced contractile alterations; (4) Conclusions: Pharmacological interventions, forcing substrate metabolism away from glucose utilization, improved contractile properties in PE-treated cardiomyocytes, suggesting that targeting glucose uptake, independent from protein synthesis, forms a promising strategy to prevent hypertrophy and hypertrophy-induced cardiac dysfunction.
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Affiliation(s)
- Ilvy M. E. Geraets
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
| | - Will A. Coumans
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
| | - Agnieszka Strzelecka
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
| | - Patrick Schönleitner
- Departments of Physiology, Maastricht University, 6200-MD Maastricht, The Netherlands; (P.S.); (G.A.)
- CARIM School for Cardiovascular Diseases, Maastricht University, 6200-MD Maastricht, The Netherlands
| | - Gudrun Antoons
- Departments of Physiology, Maastricht University, 6200-MD Maastricht, The Netherlands; (P.S.); (G.A.)
- CARIM School for Cardiovascular Diseases, Maastricht University, 6200-MD Maastricht, The Netherlands
| | - Francesco Schianchi
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
| | - Myrthe M. A. Willemars
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
| | - Dimitrios Kapsokalyvas
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
| | - Jan F. C. Glatz
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
- CARIM School for Cardiovascular Diseases, Maastricht University, 6200-MD Maastricht, The Netherlands
| | - Joost J. F. P. Luiken
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
- Department of Clinical Genetics, Maastricht University Medical Center, 6200-MD Maastricht, The Netherlands
| | - Miranda Nabben
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200-MD Maastricht, The Netherlands; (I.M.E.G.); (W.A.C.); (A.S.); (F.S.); (M.M.A.W.); (D.K.); (J.F.C.G.); (J.J.F.P.L.)
- CARIM School for Cardiovascular Diseases, Maastricht University, 6200-MD Maastricht, The Netherlands
- Department of Clinical Genetics, Maastricht University Medical Center, 6200-MD Maastricht, The Netherlands
- Correspondence: ; Tel.: +31-43-3881998
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Vázquez-Sánchez S, Poveda J, Navarro-García JA, González-Lafuente L, Rodríguez-Sánchez E, Ruilope LM, Ruiz-Hurtado G. An Overview of FGF-23 as a Novel Candidate Biomarker of Cardiovascular Risk. Front Physiol 2021; 12:632260. [PMID: 33767635 PMCID: PMC7985069 DOI: 10.3389/fphys.2021.632260] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 02/15/2021] [Indexed: 12/12/2022] Open
Abstract
Fibroblast growth factor-23 (FGF)-23 is a phosphaturic hormone involved in mineral bone metabolism that helps control phosphate homeostasis and reduces 1,25-dihydroxyvitamin D synthesis. Recent data have highlighted the relevant direct FGF-23 effects on the myocardium, and high plasma levels of FGF-23 have been associated with adverse cardiovascular outcomes in humans, such as heart failure and arrhythmias. Therefore, FGF-23 has emerged as a novel biomarker of cardiovascular risk in the last decade. Indeed, experimental data suggest FGF-23 as a direct mediator of cardiac hypertrophy development, cardiac fibrosis and cardiac dysfunction via specific myocardial FGF receptor (FGFR) activation. Therefore, the FGF-23/FGFR pathway might be a suitable therapeutic target for reducing the deleterious effects of FGF-23 on the cardiovascular system. More research is needed to fully understand the intracellular FGF-23-dependent mechanisms, clarify the downstream pathways and identify which could be the most appropriate targets for better therapeutic intervention. This review updates the current knowledge on both clinical and experimental studies and highlights the evidence linking FGF-23 to cardiovascular events. The aim of this review is to establish the specific role of FGF-23 in the heart, its detrimental effects on cardiac tissue and the possible new therapeutic opportunities to block these effects.
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Affiliation(s)
- Sara Vázquez-Sánchez
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Jonay Poveda
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - José Alberto Navarro-García
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Laura González-Lafuente
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Elena Rodríguez-Sánchez
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Luis M. Ruilope
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
- CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
- School of Doctoral Studies and Research, European University of Madrid, Madrid, Spain
| | - Gema Ruiz-Hurtado
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
- CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
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Tardelli LP, Duchatsch F, Herrera NA, Vicentini CA, Okoshi K, Amaral SL. Differential effects of dexamethasone on arterial stiffness, myocardial remodeling and blood pressure between normotensive and spontaneously hypertensive rats. J Appl Toxicol 2021; 41:1673-1686. [PMID: 33629383 DOI: 10.1002/jat.4155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/01/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022]
Abstract
Dexamethasone (DEX)-induced hypertension is observed in normotensive rats, but little is known about the effects of DEX on spontaneously hypertensive animals (SHR). This study aimed to evaluate the effects of DEX on hemodynamics, cardiac hypertrophy and arterial stiffness in normotensive and hypertensive rats. Wistar rats and SHR were treated with DEX (50 μg/kg s.c., 14 d) or saline. Pulse wave velocity (PWV), echocardiographic parameters, blood pressure (BP), autonomic modulation and histological analyses of heart and thoracic aorta were performed. SHR had higher BP compared with Wistar, associated with autonomic unbalance to the heart. Echocardiographic changes in SHR (vs. Wistar) were suggestive of cardiac remodeling: higher relative wall thickness (RWT, +28%) and left ventricle mass index (LVMI, +26%) and lower left ventricle systolic diameter (LVSD, -19%) and LV diastolic diameter (LVDD, -10%), with slightly systolic dysfunction and preserved diastolic dysfunction. Also, SHR had lower myocardial capillary density and similar collagen deposition area. PWV was higher in SHR due to higher aortic collagen deposition. DEX-treated Wistar rats presented higher BP (~23%) and autonomic unbalance. DEX did not change cardiac structure in Wistar, but PWV (+21%) and aortic collagen deposition area (+21%) were higher compared with control. On the other side, DEX did not change BP or autonomic balance to the heart in SHR, but reduced RWT and LV collagen deposition area (-12% vs. SHRCT ). In conclusion, the results suggest a differential effect of dexamethasone on arterial stiffness, myocardial remodeling and blood pressure between normotensive and spontaneously hypertensive rats.
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Affiliation(s)
- Lidieli P Tardelli
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | - Francine Duchatsch
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | - Naiara A Herrera
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | | | - Katashi Okoshi
- Department of Medical Clinic, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Sandra L Amaral
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil.,Department of Physical Education, School of Sciences, São Paulo State University (UNESP), Bauru, Brazil
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Lu L, Eldeniz C, An H, Li R, Yang Y, Schindler TH, Peterson LR, Woodard PK, Zheng J. Quantification of myocardial oxygen extraction fraction: A proof-of-concept study. Magn Reson Med 2021; 85:3318-3325. [PMID: 33497013 DOI: 10.1002/mrm.28673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 12/17/2020] [Accepted: 12/19/2020] [Indexed: 01/09/2023]
Abstract
PURPOSE To demonstrate a proof of concept for the measurement of myocardial oxygen extraction fraction (mOEF) by a cardiovascular magnetic resonance technique. METHODS The mOEF measurement was performed using an electrocardiogram-triggered double-echo asymmetric spin-echo sequence with EPI readout. Seven healthy volunteers (22-37 years old, 5 females) were recruited and underwent the same imaging scans at rest on 2 different days for reproducibility assessment. Another 5 subjects (23-37 years old, 4 females) underwent cardiovascular magnetic resonance studies at rest and during a handgrip isometric exercise with a 25% of maximal voluntary contraction. Both mOEF and myocardial blood volume values were obtained in septal regions from respective maps. RESULTS The reproducibility was excellent for the measurements of mOEF in septal myocardium (coefficient of variation: 3.37%) and moderate for myocardial blood volume (coefficient of variation: 19.7%). The average mOEF and myocardial blood volume of 7 subjects at rest were 0.61 ± 0.05 and 11.0 ± 4.3%, respectively. The mOEF agreed well with literature values that were measured by PET in healthy volunteers. In the exercise study, there was no significant change in mOEF (0.61 ± 0.06 vs 0.62 ± 0.07) or myocardial blood volume (12 ± 6% vs 13 ± 4%) from rest to exercise, as expected. CONCLUSION The implemented cardiovascular magnetic resonance method shows potential for the quantitative assessment of mOEF in vivo. Future technical work is needed to improve image quality and to further validate mOEF measurements.
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Affiliation(s)
- Lillian Lu
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Cihat Eldeniz
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Hongyu An
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Ran Li
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Yang Yang
- Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Thomas H Schindler
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Linda R Peterson
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Pamela K Woodard
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jie Zheng
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
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Wu J, Lu J, Huang J, You J, Ding Z, Ma L, Dai F, Xu R, Li X, Yin P, Zhao G, Wang S, Yuan J, Yang X, Ge J, Zou Y. Variations in Energy Metabolism Precede Alterations in Cardiac Structure and Function in Hypertrophic Preconditioning. Front Cardiovasc Med 2020; 7:602100. [PMID: 33426002 PMCID: PMC7793816 DOI: 10.3389/fcvm.2020.602100] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/09/2020] [Indexed: 12/26/2022] Open
Abstract
Recent studies have unveiled that myocardial hypertrophic preconditioning (HP), which is produced by de-banding (De-TAC) of short-term transverse aortic constriction (TAC), protects the heart against hypertrophic responses caused by subsequent re-constriction (Re-TAC) in mice. Although cardiac substrate metabolism is impaired in heart failure, it remains unclear about the role of HP-driven energetics in the development of cardiac hypertrophy. Here, we investigated energy metabolism, cardiac hypertrophy, and function following variational loading conditions, as well as their relationships in HP. Male C57BL/6J mice (10–12 weeks old) were randomly subjected to Sham, HP [TAC for 3days (TAC 3d), de-banding the aorta for 4 days (De-TAC 4d), and then re-banding the aorta for 4 weeks (Re-TAC 4W)], and TAC (TAC for 4 weeks without de-banding). Cardiac echocardiography, hemodynamics, and histology were utilized to evaluate cardiac remodeling and function. The mRNA expression levels of fetal genes (ANP and BNP), glucose metabolism-related genes (glut4, pdk4), and fatty acid oxidation-related genes (mcad, pgc1α, mcd, pparα) were quantitated by real-time quantitative PCR. Activation of hypertrophy regulators ERK1/2, a metabolic stress kinase AMP-activated protein kinase (AMPK), and its downstream target acetyl-coA carboxylase (ACC) were explored by western blot. Compared with TAC 4W mice, Re-TAC 4W mice showed less impairment in glucose and fatty acid metabolism, as well as less cardiac hypertrophy and dysfunction. Moreover, no significant difference was found in myocardial hypertrophy, fibrosis, and cardiac function in TAC 3d and De-TAC 4d groups compared with Sham group. However, glut4, pdk4, mcad, pgc1α, mcd, and pparα were all decreased, while AMPK and ACC were activated in TAC 3d and returned to Sham level in De-TAC 4d, suggesting that the change in myocardial energy metabolism in HP mice was earlier than that in cardiac structure and function. Collectively, HP improves energy metabolism and delays cardiac remodeling, highlighting that early metabolic improvements drive a potential beneficial effect on structural and functional restoration in cardiac hypertrophy.
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Affiliation(s)
- Jian Wu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jing Lu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jiayuan Huang
- Key Laboratory of Guangdong Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Jieyun You
- Department of Cardiovascular Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhiwen Ding
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Leilei Ma
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Fangjie Dai
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Ran Xu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xuan Li
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Peipei Yin
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Gang Zhao
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Shijun Wang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jie Yuan
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xiangdong Yang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yunzeng Zou
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
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Duchatsch F, Tardelli LP, Herrera NA, Ruiz TFR, Vicentini CA, Okoshi K, Santos CF, Amaral SL. Dexamethasone and Training-Induced Cardiac Remodeling Improve Cardiac Function and Arterial Pressure in Spontaneously Hypertensive Rats. J Cardiovasc Pharmacol Ther 2020; 26:189-199. [PMID: 32856477 DOI: 10.1177/1074248420953271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Dexamethasone (DEX)-induced hypertension and cardiac remodeling are still unclear, especially in spontaneously hypertensive rats (SHR). On the other side, exercise training is a good strategy to control hypertension. Therefore, this study investigated the effects of DEX treatment and physical training on arterial pressure and cardiac remodeling in SHR. MATERIAL AND METHODS SHR underwent treadmill training (5 days/week, 1h/session, at 50-60% of maximal capacity, 0% degree, 75 days) and received low-dose of DEX (50µg/kg, s.c.) during the last 15 days. Sedentary Wistar rats (W) were used as control. Echocardiography and artery catheterization were performed for cardiac remodeling and function, arterial pressure and autonomic nervous system analyses. In addition, left ventricle (LV) capillary density, myocyte diameter and collagen deposition area were analyzed using specific histological staining. RESULTS Low-dose of DEX treatment did not exacerbate arterial pressure of SHR and trained groups had lower values, regardless of DEX. DEX and training decreased relative left ventricle wall thickness (RWT) and determined LV angiogenesis (+19%) and lower collagen deposition area (-22%). In addition, it determined increased left ventricular diastolic diameter. These changes were followed by improvements on systolic and diastolic function, since it was observed increased posterior wall shortening velocity (PWSV) and reduced isovolumetric relaxation time (IVRT). CONCLUSION In conclusion, this study is unique to indicate that low-dose of DEX treatment does not exacerbate arterial pressure in SHR and, when associated with training, it improves LV systolic and diastolic function, which may be due to LV angiogenesis and reduction of wall collagen deposition area.
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Affiliation(s)
- Francine Duchatsch
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil
| | - Lidieli P Tardelli
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil
| | - Naiara A Herrera
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil
| | - Thalles F R Ruiz
- Department of Biological Sciences, School of Sciences, 28108São Paulo State University (Unesp), Bauru/SP, Brazil
| | - Carlos A Vicentini
- Department of Biological Sciences, School of Sciences, 28108São Paulo State University (Unesp), Bauru/SP, Brazil
| | - Katashi Okoshi
- Department of Internal Medicine, Botucatu Medical School, 28108São Paulo State University (Unesp), Botucatu/SP, Brazil
| | - Carlos F Santos
- Department of Biological Sciences, Bauru School of Dentistry, 28133University of São Paulo (Usp), Bauru/SP, Brazil
| | - Sandra L Amaral
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos/SP, Brazil.,Department of Physical Education, School of Sciences, 28108São Paulo State University (Unesp), Bauru/SP, Brazil
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Schiattarella GG, Rodolico D, Hill JA. Metabolic inflammation in heart failure with preserved ejection fraction. Cardiovasc Res 2020; 117:423-434. [PMID: 32666082 DOI: 10.1093/cvr/cvaa217] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/24/2020] [Accepted: 07/07/2020] [Indexed: 12/11/2022] Open
Abstract
One in 10 persons in the world aged 40 years and older will develop the syndrome of HFpEF (heart failure with preserved ejection fraction), the most common form of chronic cardiovascular disease for which no effective therapies are currently available. Metabolic disturbance and inflammatory burden contribute importantly to HFpEF pathogenesis. The interplay within these two biological processes is complex; indeed, it is now becoming clear that the notion of metabolic inflammation-metainflammation-must be considered central to HFpEF pathophysiology. Inflammation and metabolism interact over the course of syndrome progression, and likely impact HFpEF treatment and prevention. Here, we discuss evidence in support of a causal, mechanistic role of metainflammation in shaping HFpEF, proposing a framework in which metabolic comorbidities profoundly impact cardiac metabolism and inflammatory pathways in the syndrome.
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Affiliation(s)
- Gabriele G Schiattarella
- Department of Internal Medicine (Cardiology), University of Texas Southwestern Medical Center, 6000 Harry Hines Blvd, NB11.208, Dallas, TX 75390-8573, USA.,Department of Advanced Biomedical Sciences, University Federico II, Via Pansini 5, 80131 Naples, Italy
| | - Daniele Rodolico
- Department of Cardiovascular and Pulmonary Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Joseph A Hill
- Department of Internal Medicine (Cardiology), University of Texas Southwestern Medical Center, 6000 Harry Hines Blvd, NB11.208, Dallas, TX 75390-8573, USA.,Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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Ashraf S, Yilmaz G, Chen X, Harmancey R. Dietary Fat and Sugar Differentially Affect β-Adrenergic Stimulation of Cardiac ERK and AKT Pathways in C57BL/6 Male Mice Subjected to High-Calorie Feeding. J Nutr 2020; 150:1041-1050. [PMID: 31950177 PMCID: PMC7198302 DOI: 10.1093/jn/nxz342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/16/2019] [Accepted: 12/23/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND High dietary fat and sugar promote cardiac hypertrophy independently from an increase in blood pressure. The respective contribution that each macronutrient exerts on cardiac growth signaling pathways remains unclear. OBJECTIVE The goal of this study was to investigate the mechanisms by which high amounts of dietary fat and sugar affect cardiac growth regulatory pathways. METHODS Male C57BL/6 mice (9 wk old; n = 20/group) were fed a standard rodent diet (STD; kcal% protein-fat-carbohydrate, 29-17-54), a high-fat diet (HFD; 20-60-20), a high-fat and high-sugar Western diet (WD; 20-45-35), a high-sugar diet with mixed carbohydrates (HCD; 20-10-70), or a high-sucrose diet (HSD; 20-10-70). Body composition was assessed weekly by EchoMRI. Whole-body glucose utilization was assessed with an intraperitoneal glucose tolerance test. After 6 wk on diets, mice were treated with saline or 20 mg/kg isoproterenol (ISO), and the activity of cardiac growth regulatory pathways was analyzed by immunoblotting. Data were analyzed by ANOVA with data from the STD group included for references only. RESULTS Compared with HCD and HSD, WD and HFD increased body fat mass 2.7- to 3.8-fold (P < 0.001), induced glucose intolerance (P < 0.001), and increased insulin concentrations >1.5-fold (P < 0.05), thereby enhancing basal and ISO-stimulated AKT phosphorylation at both threonine 308 and serine 473 residues (+25-63%; P < 0.05). Compared with HFD, the high-sugar diets potentiated ISO-mediated stimulation of the glucose-sensitive kinases PYK2 (>47%; P < 0.05 for HCD and HSD) and ERK (>34%; P < 0.05 for WD, HCD, and HSD), thereby leading to increased phosphorylation of protein synthesis regulator S6K1 at threonine 389 residue (>64%; P < 0.05 for WD, HCD, and HSD). CONCLUSIONS Dietary fat and sugar affect cardiac growth signaling pathways in C57BL/6 mice through distinct and additive mechanisms. The findings may provide new insights into the role of overnutrition in pathological cardiac remodeling.
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Affiliation(s)
- Sadia Ashraf
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Gizem Yilmaz
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Xu Chen
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Romain Harmancey
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS,Address correspondence to RH (e-mail: )
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Álvarez-Aliaga A, Frómeta-Guerra A, Suárez-Quesada A, Del Llano-Sosa D, Berdú-Saumell J, Lago-Santiesteban YA. Prognostic model of the adaptive changes from hypertensive cardiopathy: from mild diastolic dysfunction to depressed systolic function. Medwave 2020; 20:e7873. [PMID: 32469849 DOI: 10.5867/medwave.2020.03.7873] [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: 11/04/2019] [Accepted: 03/18/2020] [Indexed: 11/27/2022] Open
Abstract
Introduction By definition, hypertensive cardiopathy is a series of complex and variable effects responsible for the chronic elevation of blood pressure in the heart. It stands out within a broad spectrum of cardiovascular diseases associated with hypertension. Objective To evaluate the capacity to predict the development of adaptive changes to hypertensive cardiopathy within ten years following diagnosis of the condition, using a model based on prognostic factors. Methods A prospective cohort study was conducted in hypertensive patients. The patients were followed at the specialized hypertension physicians office of the specialty policlinic attached to Carlos Manuel de Céspedes University Hospital, in the Bayamo Municipality, Granma Province, Cuba, from 1 January 2008 to 31 December 2018. Results Coxs proportional regression model showed a significant statistical relationship between most of the factors and the development of the adaptive changes in hypertensive cardiopathy within ten years of follow-up after the diagnosis of this condition. The lack of blood pressure control (Hazard ratio: 2.090; confidence interval 95%: 1.688 to 2.588; p: 0.000) followed by stage 2 of hypertension (hazard ratio: 1.987; confidence interval 95%: 1.584 to 2.491; p: 0.000) were the main factors. Internal validation of the model, discriminant capacity (C- statistic: 0.897) and calibration Hosmer-Lemeshow (χ2: 5.384; p: 0.716), was acceptable. Conclusions We develop a model to predict the progression of hypertensive cardiopathy from grade I to grade IV with adequate discriminatory capacity. The model is based on prognostic factors, among which characteristic effects of arterial hypertension, diabetes mellitus, and chronic kidney disease stood out.
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Affiliation(s)
- Alexis Álvarez-Aliaga
- Hospital General Universitario Carlos Manuel de Céspedes, Bayamo, Granma, Cuba. Universidad de Ciencias Médicas de Granma, Bayamo, Cuba. . ORCID: 0000-0002-4706-3821
| | - Adonis Frómeta-Guerra
- Hospital General Universitario Carlos Manuel de Céspedes, Bayamo, Granma, Cuba. Universidad de Ciencias Médicas de Granma, Bayamo, Cuba. ORCID: 0000-0003-0436-5974
| | - Alexis Suárez-Quesada
- Hospital General Universitario Carlos Manuel de Céspedes, Bayamo, Granma, Cuba. Universidad de Ciencias Médicas de Granma, Bayamo, Cuba. ORCID: 0000-0002-7672-5601
| | - David Del Llano-Sosa
- Hospital General Universitario Carlos Manuel de Céspedes, Bayamo, Granma, Cuba. Universidad de Ciencias Médicas de Granma, Bayamo, Cuba. ORCID: 0000-0002-0104-1715
| | - Joel Berdú-Saumell
- Hospital General Universitario Carlos Manuel de Céspedes, Bayamo, Granma, Cuba. Universidad de Ciencias Médicas de Granma, Bayamo, Cuba. ORCID: 0000-0002-8818-2704
| | - Yasel Alberto Lago-Santiesteban
- Hospital General Universitario Carlos Manuel de Céspedes, Bayamo, Granma, Cuba. Universidad de Ciencias Médicas de Granma, Bayamo, Cuba. ORCID: 0000-0003-2933-0663
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Li J, Minćzuk K, Massey JC, Howell NL, Roy RJ, Paul S, Patrie JT, Kramer CM, Epstein FH, Carey RM, Taegtmeyer H, Keller SR, Kundu BK. Metformin Improves Cardiac Metabolism and Function, and Prevents Left Ventricular Hypertrophy in Spontaneously Hypertensive Rats. J Am Heart Assoc 2020; 9:e015154. [PMID: 32248762 PMCID: PMC7428616 DOI: 10.1161/jaha.119.015154] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background In spontaneously hypertensive rats (SHR) we observed profound myocardial metabolic changes during early hypertension before development of cardiac dysfunction and left ventricular hypertrophy. In this study, we evaluated whether metformin improved myocardial metabolic abnormalities and simultaneously prevented contractile dysfunction and left ventricular hypertrophy in SHR. Methods and Results SHR and control Wistar–Kyoto rats were treated with metformin from 2 to 5 months of age, when SHR hearts exhibit metabolic abnormalities and develop cardiac dysfunction and left ventricular hypertrophy. We evaluated the effect of metformin on myocardial glucose uptake rates with dynamic 2‐[18F] fluoro‐2‐deoxy‐D‐glucose positron emission tomography. We used cardiac MRI in vivo to assess the effect of metformin on ejection fraction, left ventricular mass, and end‐diastolic wall thickness, and also analyzed metabolites, AMP‐activated protein kinase and mammalian target‐of‐rapamycin activities, and mean arterial blood pressure. Metformin‐treated SHR had lower mean arterial blood pressure but remained hypertensive. Cardiac glucose uptake rates, left ventricular mass/tibia length, wall thickness, and circulating free fatty acid levels decreased to normal, and ejection fraction improved in treated SHR. Hearts of treated SHR exhibited increased AMP‐activated protein kinase phosphorylation and reduced mammalian target‐of‐rapamycin activity. Cardiac metabolite profiling demonstrated that metformin decreased fatty acyl carnitines and markers of oxidative stress in SHR. Conclusions Metformin reduced blood pressure, normalized myocardial glucose uptake, prevented left ventricular hypertrophy, and improved cardiac function in SHR. Metformin may exert its effects by normalizing myocardial AMPK and mammalian target‐of‐rapamycin activities, improving fatty acid oxidation, and reducing oxidative stress. Thus, metformin may be a new treatment to prevent or ameliorate chronic hypertension–induced left ventricular hypertrophy.
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Affiliation(s)
- Jie Li
- Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - Krzysztof Minćzuk
- Department of Radiology and Medical Imaging University of Virginia Charlottesville VA.,Department of Experimental Physiology and Pathophysiology Medical University of Białystok Białystok Poland
| | - James C Massey
- Department of Radiology and Medical Imaging University of Virginia Charlottesville VA.,Department of Biomedical Engineering University of Virginia Charlottesville VA
| | - Nancy L Howell
- Division of Endocrinology and Metabolism Department of Medicine University of Virginia Charlottesville VA
| | - R Jack Roy
- Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - Soumen Paul
- Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - James T Patrie
- Department of Public Health Sciences University of Virginia Charlottesville VA
| | | | - Frederick H Epstein
- Department of Biomedical Engineering University of Virginia Charlottesville VA
| | - Robert M Carey
- Division of Endocrinology and Metabolism Department of Medicine University of Virginia Charlottesville VA
| | - Heinrich Taegtmeyer
- McGovern Medical School The University of Texas Health Science Center, Houston, TX
| | - Susanna R Keller
- Division of Endocrinology and Metabolism Department of Medicine University of Virginia Charlottesville VA
| | - Bijoy K Kundu
- Department of Radiology and Medical Imaging University of Virginia Charlottesville VA.,Department of Biomedical Engineering University of Virginia Charlottesville VA.,Cardiovascular Research Center University of Virginia Charlottesville VA
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Korobkova EO, Kozhevnikova MV, Ilgisonis IS, Shakaryants GA, Appolonova SA, Kukharenko AV, Larcova EV, Maltseva AA, Khabarova NV, Belenkov YN. [Metabolomic profiling in patients with metabolic syndrome]. KARDIOLOGIIA 2020; 60:37-43. [PMID: 32375614 DOI: 10.18087/cardio.2020.3.n903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 11/28/2019] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To identify biomarkers, which are most specific for patients with metabolic syndrome (MS) using metabolomic profiling. MATERIALS AND METHODS Metabolomic profiling of patients with MS and comparison of their profile with the profile of volunteers was performed using high-performance liquid chromatography-mass-spectrometry. RESULTS The metabolomic profile of MS patients differed in several amino acids, including choline, cysteine, and serine and in the acylcarnitine group (р<0.05 for all comparisons). CONCLUSION The metabolites most specific for MS patients were identified. Increased concentrations of a combination of amino acids and carnitines can be considered as possible additional risk factors for cardiovascular diseases.
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Affiliation(s)
- E O Korobkova
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - M V Kozhevnikova
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - I S Ilgisonis
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - G A Shakaryants
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - S A Appolonova
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - A V Kukharenko
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - E V Larcova
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - A A Maltseva
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - N V Khabarova
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - Yu N Belenkov
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
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Li J, Kemp BA, Howell NL, Massey J, Mińczuk K, Huang Q, Chordia MD, Roy RJ, Patrie JT, Davogustto GE, Kramer CM, Epstein FH, Carey RM, Taegtmeyer H, Keller SR, Kundu BK. Metabolic Changes in Spontaneously Hypertensive Rat Hearts Precede Cardiac Dysfunction and Left Ventricular Hypertrophy. J Am Heart Assoc 2020; 8:e010926. [PMID: 30764689 PMCID: PMC6405673 DOI: 10.1161/jaha.118.010926] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Sustained pressure overload leads to changes in cardiac metabolism, function, and structure. Both time course and causal relationships between these changes are not fully understood. Therefore, we studied spontaneously hypertensive rats (SHR) during early hypertension development and compared them to control Wistar Kyoto rats. Methods and Results We serially evaluated myocardial glucose uptake rates (Ki) with dynamic 2‐[18F] fluoro‐2‐deoxy‐D‐glucose positron emission tomography, and ejection fraction and left ventricular mass to body weight ratios with cardiac magnetic resonance imaging in vivo, determined glucose uptake and oxidation rates in isolated perfused hearts, and analyzed metabolites, mammalian target of rapamycin activity and endoplasmic reticulum stress in dissected hearts. When compared with Wistar Kyoto rats, SHR demonstrated increased glucose uptake rates (Ki) in vivo, and reduced ejection fraction as early as 2 months of age when hypertension was established. Isolated perfused SHR hearts showed increased glucose uptake and oxidation rates starting at 1 month. Cardiac metabolite analysis at 2 months of age revealed elevated pyruvate, fatty acyl‐ and branched chain amino acid‐derived carnitines, oxidative stress, and inflammation. Mammalian target of rapamycin activity increased in SHR beginning at 2 months. Left ventricular mass to body weight ratios and endoplasmic reticulum stress were elevated in 5 month‐old SHR. Conclusions Thus, in a genetic hypertension model, chronic cardiac pressure overload promptly leads to increased myocardial glucose uptake and oxidation, and to metabolite abnormalities. These coincide with, or precede, cardiac dysfunction while left ventricular hypertrophy develops only later. Myocardial metabolic changes may thus serve as early diagnostic markers for hypertension‐induced left ventricular hypertrophy.
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Affiliation(s)
- Jie Li
- 1 Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - Brandon A Kemp
- 2 Division of Endocrinology and Metabolism Department of Medicine University of Virginia Charlottesville VA
| | - Nancy L Howell
- 2 Division of Endocrinology and Metabolism Department of Medicine University of Virginia Charlottesville VA
| | - James Massey
- 1 Department of Radiology and Medical Imaging University of Virginia Charlottesville VA.,3 Department of Biomedical Engineering University of Virginia Charlottesville VA
| | - Krzysztof Mińczuk
- 1 Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - Qiao Huang
- 1 Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - Mahendra D Chordia
- 1 Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - R Jack Roy
- 1 Department of Radiology and Medical Imaging University of Virginia Charlottesville VA
| | - James T Patrie
- 4 Department of Public Health Sciences University of Virginia Charlottesville VA
| | - Giovanni E Davogustto
- 5 McGovern Medical School University of Texas Health Science Center in Houston Houston TX
| | - Christopher M Kramer
- 6 Department of Cardiovascular Medicine University of Virginia Charlottesville VA
| | - Frederick H Epstein
- 3 Department of Biomedical Engineering University of Virginia Charlottesville VA
| | - Robert M Carey
- 2 Division of Endocrinology and Metabolism Department of Medicine University of Virginia Charlottesville VA
| | - Heinrich Taegtmeyer
- 5 McGovern Medical School University of Texas Health Science Center in Houston Houston TX
| | - Susanna R Keller
- 2 Division of Endocrinology and Metabolism Department of Medicine University of Virginia Charlottesville VA
| | - Bijoy K Kundu
- 1 Department of Radiology and Medical Imaging University of Virginia Charlottesville VA.,3 Department of Biomedical Engineering University of Virginia Charlottesville VA.,7 Cardiovascular Research Center University of Virginia Charlottesville VA
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Huang Q, Massey JC, Mińczuk K, Li J, Kundu BK. Non-invasive determination of blood input function to compute rate of myocardial glucose uptake from dynamic FDG PET images of rat heart in vivo: comparative study between the inferior vena cava and the left ventricular blood pool with spill over and partial volume corrections. Phys Med Biol 2019; 64:165010. [PMID: 31307015 DOI: 10.1088/1361-6560/ab3238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The purpose of this work was to compute blood input function from the inferior vena cava (IVC) with partial volume (PV) corrections and compare to that obtained from the left ventricular blood pool (LVBP) with spill-over (SP) and PV corrections. These were then used to compute and validate rates of myocardial 2-deoxy-2-[18F]fluoro-D-glucose (FDG) uptake (Ki) from dynamic positron emission tomography (PET) images of rat hearts in vivo in comparison to that obtained from invasive arterial blood sampling. Whole body 60 min dynamic FDG PET/CT imaging of n = 8 control Wistar Kyoto (WKY) rats were performed using Albira trimodal PET/CT/SPECT scanner. Image derived blood input function (IDIF) obtained from IVC corrected for PV averaging (IVC-PV) and IDIF from the left ventricular blood pool (LVBP) with SP and PV corrections (LVBP-SP-PV) were computed. Next, computed Ki (indirect comparison) in a 5-parameter (using IVC-PV) and a 15-parameter (using LVBP-SP-PV) 3-compartment models in WKY rat hearts in vivo were compared to that obtained using arterial blood sampling reported in literature in control Spraque Dawley (SD) rats. Using IVC-PV in a three-compartment five-parameter model resulted in a ~46% deviation in the mean computed Ki compared to that obtained with LVBP-SP-PV in a three-compartment 15-parameter model with a ~57% deviation in the mean computed Ki. The mean computed Ki in WKY rat hearts using the above methods, however, did not differ significantly to that obtained from invasive arterial blood sampling in SD rat hearts (p = 0.91 for IVC-PV and p = 0.58 for LVBP-SP-PV). Hence, Ki obtained in WKY rat hearts with input curve from IVC (IVC-PV) in a dynamic FDG PET scan is comparatively more repetitive to that obtained from the LVBP (LVBP-SP-PV). Ki computed using both the methods, however, agree well with each other and that obtained using arterial blood sampling.
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Affiliation(s)
- Qiao Huang
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States of America. Equal contribution
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The microRNA in ventricular remodeling: the miR-30 family. Biosci Rep 2019; 39:BSR20190788. [PMID: 31320543 PMCID: PMC6680373 DOI: 10.1042/bsr20190788] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/07/2019] [Accepted: 07/16/2019] [Indexed: 12/14/2022] Open
Abstract
Ventricular remodeling (VR) is a complex pathological process of cardiomyocyte apoptosis, cardiac hypertrophy, and myocardial fibrosis, which is often caused by various cardiovascular diseases (CVDs) such as hypertension, acute myocardial infarction, heart failure (HF), etc. It is also an independent risk factor for a variety of CVDs, which will eventually to damage the heart function, promote cardiovascular events, and lead to an increase in mortality. MicroRNAs (miRNAs) can participate in a variety of CVDs through post-transcriptional regulation of target gene proteins. Among them, microRNA-30 (miR-30) is one of the most abundant miRNAs in the heart. In recent years, the study found that the miR-30 family can participate in VR through a variety of mechanisms, including autophagy, apoptosis, oxidative stress, and inflammation. VR is commonly found in ischemic heart disease (IHD), hypertensive heart disease (HHD), diabetic cardiomyopathy (DCM), antineoplastic drug cardiotoxicity (CTX), and other CVDs. Therefore, we will review the relevant mechanisms of the miR-30 in VR induced by various diseases.
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