1
|
Pizzo E, Cervantes DO, Ripa V, Filardo A, Berrettoni S, Ketkar H, Jagana V, Di Stefano V, Singh K, Ezzati A, Ghadirian K, Kouril A, Jacobson JT, Bisserier M, Jain S, Rota M. The cAMP/PKA signaling pathway conditions cardiac performance in experimental animals with metabolic syndrome. J Mol Cell Cardiol 2024; 196:35-51. [PMID: 39251059 DOI: 10.1016/j.yjmcc.2024.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 07/20/2024] [Accepted: 09/05/2024] [Indexed: 09/11/2024]
Abstract
Metabolic syndrome (MetS) increases the risk of coronary artery disease, but effects of this condition on the working myocardium remain to be fully elucidated. In the present study we evaluated the consequences of diet-induced metabolic disorders on cardiac function and myocyte performance using female mice fed with Western diet. Animals maintained on regular chow were used as control (Ctrl). Mice on the Western diet (WesD) had increased body weight, impaired glucose metabolism, preserved diastolic and systolic function, but increased left ventricular (LV) mass, with respect to Ctrl animals. Moreover, WesD mice had reduced heart rate variability (HRV), indicative of altered cardiac sympathovagal balance. Myocytes from WesD mice had increased volume, enhanced cell mechanics, and faster kinetics of contraction and relaxation. Moreover, levels of cAMP and protein kinase A (PKA) activity were enhanced in WesD myocytes, and interventions aimed at stabilizing cAMP/PKA abrogated functional differences between Ctrl and WesD cells. Interestingly, in vivo β-adrenergic receptor (β-AR) blockade normalized the mechanical properties of WesD myocytes and revealed defective cardiac function in WesD mice, with respect to Ctrl. Collectively, these results indicate that metabolic disorders induced by Western diet enhance the cAMP/PKA signaling pathway, a possible adaptation required to maintain cardiac function.
Collapse
Affiliation(s)
- Emanuele Pizzo
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | | | - Valentina Ripa
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Andrea Filardo
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Silvia Berrettoni
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Harshada Ketkar
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, USA
| | - Vineeta Jagana
- Department of Cell Biology and Anatomy, New York Medical College, Valhalla, NY, USA
| | | | - Kanwardeep Singh
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Asha Ezzati
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Kash Ghadirian
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Anna Kouril
- Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Jason T Jacobson
- Department of Physiology, New York Medical College, Valhalla, NY, USA; Department of Cardiology, Westchester Medical Center, Valhalla, NY, USA
| | - Malik Bisserier
- Department of Physiology, New York Medical College, Valhalla, NY, USA; Department of Cell Biology and Anatomy, New York Medical College, Valhalla, NY, USA
| | - Sudhir Jain
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, USA
| | - Marcello Rota
- Department of Physiology, New York Medical College, Valhalla, NY, USA.
| |
Collapse
|
2
|
Jalink EA, Schonk AW, Boon RA, Juni RP. Non-coding RNAs in the pathophysiology of heart failure with preserved ejection fraction. Front Cardiovasc Med 2024; 10:1300375. [PMID: 38259314 PMCID: PMC10800550 DOI: 10.3389/fcvm.2023.1300375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/11/2023] [Indexed: 01/24/2024] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) is the largest unmet clinical need in cardiovascular medicine. Despite decades of research, the treatment option for HFpEF is still limited, indicating our ongoing incomplete understanding on the underlying molecular mechanisms. Non-coding RNAs, comprising of microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs), are non-protein coding RNA transcripts, which are implicated in various cardiovascular diseases. However, their role in the pathogenesis of HFpEF is unknown. Here, we discuss the role of miRNAs, lncRNAs and circRNAs that are involved in the pathophysiology of HFpEF, namely microvascular dysfunction, inflammation, diastolic dysfunction and cardiac fibrosis. We interrogated clinical evidence and dissected the molecular mechanisms of the ncRNAs by looking at the relevant in vivo and in vitro models that mimic the co-morbidities in patients with HFpEF. Finally, we discuss the potential of ncRNAs as biomarkers and potential novel therapeutic targets for future HFpEF treatment.
Collapse
Affiliation(s)
- Elisabeth A. Jalink
- Department of Physiology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Microcirculation, Amsterdam, Netherlands
| | - Amber W. Schonk
- Department of Physiology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Microcirculation, Amsterdam, Netherlands
| | - Reinier A. Boon
- Department of Physiology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Microcirculation, Amsterdam, Netherlands
- Institute for Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
- German Centre for Cardiovascular Research, Partner Site Frankfurt Rhein/Main, Frankfurt, Germany
| | - Rio P. Juni
- Department of Physiology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Microcirculation, Amsterdam, Netherlands
| |
Collapse
|
3
|
Boutari C, Kokkorakis M, Stefanakis K, Valenzuela-Vallejo L, Axarloglou E, Volčanšek Š, Chakhtoura M, Mantzoros CS. Recent research advances in metabolism, clinical and experimental. Metabolism 2023; 149:155722. [PMID: 37931873 DOI: 10.1016/j.metabol.2023.155722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Affiliation(s)
- Chrysoula Boutari
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Michail Kokkorakis
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Konstantinos Stefanakis
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Laura Valenzuela-Vallejo
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Evangelos Axarloglou
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Špela Volčanšek
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Center Ljubljana, Zaloska 7, 1000 Ljubljana, Slovenia; Medical Faculty Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Marlene Chakhtoura
- Department of Internal Medicine, Division of Endocrinology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Christos S Mantzoros
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America; Department of Medicine, Boston VA Healthcare System, Boston, MA 02130, United States of America.
| |
Collapse
|
4
|
Norton CE, Shaw RL, Segal SS. Differential Effects of High Fat Diets on Resilience to H 2O 2-Induced Cell Death in Mouse Cerebral Arteries: Role for Processed Carbohydrates. Antioxidants (Basel) 2023; 12:1433. [PMID: 37507971 PMCID: PMC10376469 DOI: 10.3390/antiox12071433] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/30/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
High fat, western-style diets increase vascular oxidative stress. We hypothesized that smooth muscle cells and endothelial cells adapt during the consumption of high fat diets to become more resilient to acute oxidative stress. Male C57Bl/6J mice were fed a western-style diet high in fat and processed carbohydrates (WD), a high fat diet that induces obesity (DIO), or their respective control (CD) and standard (SD) diets for 16 weeks. Posterior cerebral arteries (PCAs) were isolated and pressurized for study. During acute exposure to H2O2 (200 µM), smooth muscle cell and endothelial cell death were reduced in PCAs from WD, but not DIO mice. WD selectively attenuated mitochondrial membrane potential depolarization and vessel wall Ca2+ influx during H2O2 exposure. Selective inhibition of transient receptor potential (TRP) V4 or TRPC3 channels reduced smooth muscle cell and endothelial cell death in concert with the vessel wall [Ca2+]i response to H2O2 for PCAs from CD mice and eliminated differences between CD and WD. Inhibiting Src kinases reduced smooth muscle cell death along with [Ca2+]i response to H2O2 only in PCAs from CD mice and eliminated differences between diets. However, Src kinase inhibition did not alter endothelial cell death. These findings indicate that consuming a WD, but not high fat alone, leads to adaptations that limit Ca2+ influx and vascular cell death during exposure to acute oxidative stress.
Collapse
Affiliation(s)
- Charles E Norton
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65212, USA
| | - Rebecca L Shaw
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65212, USA
| | - Steven S Segal
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65212, USA
- Dalton Cardiovascular Research Center, Columbia, MO 65211, USA
- Department of Biomedical Sciences, University of Missouri, Columbia, MO 65201, USA
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO 65211, USA
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO 65211, USA
| |
Collapse
|
5
|
Demaria TM, Crepaldi LD, Costa-Bartuli E, Branco JR, Zancan P, Sola-Penna M. Once a week consumption of Western diet over twelve weeks promotes sustained insulin resistance and non-alcoholic fat liver disease in C57BL/6 J mice. Sci Rep 2023; 13:3058. [PMID: 36810903 PMCID: PMC9942638 DOI: 10.1038/s41598-023-30254-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
The Western diet (high in fat and sucrose) consumption is a highly prevalent feature in the whole world, mainly due to the increasing consumption of ultra-processed foods (UPF), which are cheaper and easier-to-eat, as compared to fresh and highly nutritive meals. Epidemiological studies have associated UPF consumption with development of obesity, non-alcoholic fat liver disease (NAFLD) and insulin resistance. For molecular studies, mice fed with Western diets have been used to characterize signaling pathways involved in these diet-induced pathologies. However, these studies fed mice continuously with the diets, which is not compatible with what occurs in real life, when consumption is occasional. Here, we fed mice once-a-week with a high fat, high sucrose (HFHS) diet and compared these animals with those fed continuously with HFHS diet or with a standard diet. Our results show that after a single day of consuming HFHS, animals presented impaired oral glucose tolerance test (oGTT) as compared to control group. Although this impairment was reversed after 24 h consuming regular diet, repetition of HFHS consumption once-a-week aggravated the picture such as after 12-weeks, oGTT impairment was not reversed after 6 days under control diet. Liver steatosis, inflammation, impaired insulin signaling pathway and endoplasmic reticulum stress are similar comparing animals that consumed HFHS once-a-week with those that continuously consumed HFHS, though weekly-fed animals did not gain as much weight. Therefore, we conclude that regimen of one day HFHS plus 6 days normal diet over 12 weeks is sufficient to induce insulin resistance and NAFLD in mice.
Collapse
Affiliation(s)
- Thainá Magalhães Demaria
- grid.8536.80000 0001 2294 473XThe Metabolizsm’ Group, Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ 21941-902 Brazil
| | - Leticia Diniz Crepaldi
- grid.8536.80000 0001 2294 473XThe Metabolizsm’ Group, Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ 21941-902 Brazil
| | - Emylle Costa-Bartuli
- grid.8536.80000 0001 2294 473XThe Metabolizsm’ Group, Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ 21941-902 Brazil
| | - Jessica Ristow Branco
- grid.8536.80000 0001 2294 473XThe Metabolizsm’ Group, Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ 21941-902 Brazil
| | - Patricia Zancan
- grid.8536.80000 0001 2294 473XThe Metabolizsm’ Group, Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ 21941-902 Brazil
| | - Mauro Sola-Penna
- The Metabolizsm' Group, Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.
| |
Collapse
|
6
|
Aroor A, DeMarco VG, Whaley-Connell AT, Jia G, Yang Y, Sharma N, Naz H, Hans C, Hayden MR, Hill MA, Sowers JR, Manrique-Acevedo C, Lastra G. Endothelial cell-specific mineralocorticoid receptor activation promotes diastolic dysfunction in diet-induced obese male mice. Am J Physiol Regul Integr Comp Physiol 2023; 324:R90-R101. [PMID: 36440901 PMCID: PMC9799154 DOI: 10.1152/ajpregu.00274.2021] [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: 11/08/2021] [Revised: 11/17/2022] [Accepted: 11/17/2022] [Indexed: 11/30/2022]
Abstract
Widespread consumption of diets high in fat and fructose (Western diet, WD) has led to increased prevalence of obesity and diastolic dysfunction (DD). DD is a prominent feature of heart failure with preserved ejection fraction (HFpEF). However, the underlying mechanisms of DD are poorly understood, and treatment options are still limited. We have previously shown that deletion of the cell-specific mineralocorticoid receptor in endothelial cells (ECMR) abrogates DD induced by WD feeding in female mice. However, the specific role of ECMR activation in the pathogenesis of DD in male mice has not been clarified. Therefore, we fed 4-wk-old ECMR knockout (ECMRKO) male mice and littermates (LM) with either a WD or chow diet (CD) for 16 wk. WD feeding resulted in DD characterized by increased left ventricle (LV) filling pressure (E/e') and diastolic stiffness [E/e'/LV inner diameter at end diastole (LVIDd)]. Compared with CD, WD in LM resulted in increased myocardial macrophage infiltration, oxidative stress, and increased myocardial phosphorylation of Akt, in concert with decreased phospholamban phosphorylation. WD also resulted in focal cardiomyocyte remodeling, characterized by areas of sarcomeric disorganization, loss of mitochondrial electron density, and mitochondrial fragmentation. Conversely, WD-induced DD and associated biochemical and structural abnormalities were prevented by ECMR deletion. In contrast with our previously reported observations in females, WD-fed male mice exhibited enhanced Akt signaling and a lower magnitude of cardiac injury. Collectively, our data support a critical role for ECMR in obesity-induced DD and suggest critical mechanistic differences in the genesis of DD between males and females.
Collapse
Affiliation(s)
- Annayya Aroor
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans Affairs Hospital, Columbia, Missouri
| | - Vincent G DeMarco
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans Affairs Hospital, Columbia, Missouri
| | - Adam T Whaley-Connell
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans Affairs Hospital, Columbia, Missouri
- Division of Nephrology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Guanghong Jia
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Yan Yang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Neekun Sharma
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Huma Naz
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans Affairs Hospital, Columbia, Missouri
| | - Chetan Hans
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Division of Cardiovascular Medicine, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Melvin R Hayden
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - James R Sowers
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Camila Manrique-Acevedo
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans Affairs Hospital, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Guido Lastra
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans Affairs Hospital, Columbia, Missouri
| |
Collapse
|
7
|
Kelley RC, Lapierre SS, Muscato DR, Hahn D, Christou DD, Ferreira LF. Cardiac and respiratory muscle responses to dietary N-acetylcysteine in rats consuming a high-saturated fat, high-sucrose diet. Exp Physiol 2022; 107:1312-1325. [PMID: 35938289 PMCID: PMC9633399 DOI: 10.1113/ep090332] [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] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 07/22/2022] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? This study addresses whether a high-fat, high-sucrose diet causes cardiac and diaphragm muscle abnormalities in male rats and whether supplementation with the antioxidant N-acetylcysteine reverses diet-induced dysfunction. What is the main finding and its importance? N-Acetylcysteine attenuated the effects of high-fat, high-sucrose diet on markers of cardiac hypertrophy and diastolic dysfunction, but neither high-fat, high-sucrose diet nor N-acetylcysteine affected the diaphragm. These results support the use of N-acetylcysteine to attenuate cardiovascular dysfunction induced by a 'Western' diet. ABSTRACT Individuals with overweight or obesity display respiratory and cardiovascular dysfunction, and oxidative stress is a causative factor in the general aetiology of obesity and of skeletal and cardiac muscle pathology. Thus, this preclinical study aimed to define diaphragmatic and cardiac morphological and functional alterations in response to an obesogenic diet in rats and the therapeutic potential of an antioxidant supplement, N-acetylcysteine (NAC). Young male Wistar rats consumed ad libitum a 'lean' or high-saturated fat, high-sucrose (HFHS) diet for ∼22 weeks and were randomized to control or NAC (2 mg/ml in the drinking water) for the last 8 weeks of the dietary intervention. We then evaluated diaphragmatic and cardiac morphology and function. Neither HFHS diet nor NAC supplementation affected diaphragm-specific force, peak power or morphology. Right ventricular weight normalized to estimated body surface area, left ventricular fractional shortening and posterior wall maximal shortening velocity were higher in HFHS compared with lean control animals and not restored by NAC. In HFHS rats, the elevated deceleration rate of early transmitral diastolic velocity was prevented by NAC. Our data showed that the HFHS diet did not compromise diaphragmatic muscle morphology or in vitro function, suggesting other possible contributors to breathing abnormalities in obesity (e.g., abnormalities of neuromuscular transmission). However, the HFHS diet resulted in cardiac functional and morphological changes suggestive of hypercontractility and diastolic dysfunction. Supplementation with NAC did not affect diaphragm morphology or function but attenuated some of the cardiac abnormalities in the rats receiving the HFHS diet.
Collapse
Affiliation(s)
- Rachel C. Kelley
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL
| | - Stephanie S. Lapierre
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL
| | - Derek R. Muscato
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL
| | - Dongwoo Hahn
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL
| | - Demetra D. Christou
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL
| | - Leonardo F. Ferreira
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL
| |
Collapse
|
8
|
Wingard MC, Dalal S, Shook PL, Ramirez P, Raza MU, Johnson P, Connelly BA, Thewke D, Singh M, Singh K. Deficiency of ataxia-telangiectasia mutated kinase attenuates Western-type diet-induced cardiac dysfunction in female mice. Physiol Rep 2022; 10:e15434. [PMID: 36117462 PMCID: PMC9483716 DOI: 10.14814/phy2.15434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/29/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022] Open
Abstract
Chronic consumption of Western-type diet (WD) induces cardiac structural and functional abnormalities. Previously, we have shown that WD consumption in male ATM (ataxia-telangiectasia mutated kinase) deficient mice associates with accelerated body weight (BW) gain, cardiac systolic dysfunction with increased preload, and exacerbation of hypertrophy, apoptosis, and inflammation. This study investigated the role of ATM deficiency in WD-induced changes in functional and biochemical parameters of the heart in female mice. Six-week-old wild-type (WT) and ATM heterozygous knockout (hKO) female mice were placed on WD or NC (normal chow) for 14 weeks. BW gain, fat accumulation, and cardiac functional and biochemical parameters were measured 14 weeks post-WD. WD-induced subcutaneous and total fat contents normalized to body weight were higher in WT-WD versus hKO-WD. Heart function measured using echocardiography revealed decreased percent fractional shortening and ejection fraction, and increased LV end systolic diameter and volume in WT-WD versus WT-NC. These functional parameters remained unchanged in hKO-WD versus hKO-NC. Myocardial fibrosis, myocyte hypertrophy, and apoptosis were higher in WT-WD versus WT-NC. However, apoptosis was significantly lower and hypertrophy was significantly higher in hKO-WD versus WT-WD. MMP-9 and Bax expression, and Akt activation were higher in WT-WD versus WT-NC. PARP-1 (full-length) expression and mTOR activation were lower in WT-WD versus hKO-WD. Thus, ATM deficiency in female mice attenuates fat weight gain, preserves heart function, and associates with decreased cardiac cell apoptosis in response to WD.
Collapse
Affiliation(s)
- Mary C. Wingard
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
| | - Suman Dalal
- Department of Health SciencesEast Tennessee State UniversityJohnson CityTennesseeUSA
- Center of Excellence in Inflammation, Infectious Disease and ImmunityJohnson CityTennesseeUSA
| | - Paige L. Shook
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
| | - Paulina Ramirez
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
| | - Muhammad U. Raza
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
| | - Patrick Johnson
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
| | - Barbara A. Connelly
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
- Research and Development ServiceJames H Quillen Veterans Affairs Medical CenterMountain HomeTennesseeUSA
| | - Douglas P. Thewke
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
| | - Mahipal Singh
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
| | - Krishna Singh
- Department of Biomedical SciencesJames H Quillen College of Medicine, East Tennessee State UniversityJohnson CityTennesseeUSA
- Center of Excellence in Inflammation, Infectious Disease and ImmunityJohnson CityTennesseeUSA
- Research and Development ServiceJames H Quillen Veterans Affairs Medical CenterMountain HomeTennesseeUSA
| |
Collapse
|
9
|
Li H, Konja D, Wang L, Wang Y. Sex Differences in Adiposity and Cardiovascular Diseases. Int J Mol Sci 2022; 23:ijms23169338. [PMID: 36012601 PMCID: PMC9409326 DOI: 10.3390/ijms23169338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/11/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Body fat distribution is a well-established predictor of adverse medical outcomes, independent of overall adiposity. Studying body fat distribution sheds insights into the causes of obesity and provides valuable information about the development of various comorbidities. Compared to total adiposity, body fat distribution is more closely associated with risks of cardiovascular diseases. The present review specifically focuses on the sexual dimorphism in body fat distribution, the biological clues, as well as the genetic traits that are distinct from overall obesity. Understanding the sex determinations on body fat distribution and adiposity will aid in the improvement of the prevention and treatment of cardiovascular diseases (CVD).
Collapse
|
10
|
Martínez-Martínez E, Fernández-Irigoyen J, Santamaría E, Nieto ML, Bravo-San Pedro JM, Cachofeiro V. Mitochondrial Oxidative Stress Induces Cardiac Fibrosis in Obese Rats through Modulation of Transthyretin. Int J Mol Sci 2022; 23:ijms23158080. [PMID: 35897655 PMCID: PMC9330867 DOI: 10.3390/ijms23158080] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 02/01/2023] Open
Abstract
A proteomic approach was used to characterize potential mediators involved in the improvement in cardiac fibrosis observed with the administration of the mitochondrial antioxidant MitoQ in obese rats. Male Wistar rats were fed a standard diet (3.5% fat; CT) or a high-fat diet (35% fat; HFD) and treated with vehicle or MitoQ (200 μM) in drinking water for 7 weeks. Obesity modulated the expression of 33 proteins as compared with controls of the more than 1000 proteins identified. These include proteins related to endoplasmic reticulum (ER) stress and oxidative stress. Proteomic analyses revealed that HFD animals presented with an increase in cardiac transthyretin (TTR) protein levels, an effect that was prevented by MitoQ treatment in obese animals. This was confirmed by plasma levels, which were associated with those of cardiac levels of both binding immunoglobulin protein (BiP), a marker of ER stress, and fibrosis. TTR stimulated collagen I production and BiP in cardiac fibroblasts. This upregulation was prevented by the presence of MitoQ. In summary, the results suggest a role of TTR in cardiac fibrosis development associated with obesity and the beneficial effects of treatment with mitochondrial antioxidants.
Collapse
Affiliation(s)
- Ernesto Martínez-Martínez
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain;
- Ciber de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28222 Madrid, Spain;
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain
- Correspondence: (E.M.-M.); (V.C.); Tel.: +34-913-941-483 (E.M.-M.); +34-913-941-489 (V.C.)
| | - Joaquín Fernández-Irigoyen
- Proteomics Platform, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain; (J.F.-I.); (E.S.)
| | - Enrique Santamaría
- Proteomics Platform, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain; (J.F.-I.); (E.S.)
| | - María Luisa Nieto
- Ciber de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28222 Madrid, Spain;
- Instituto de Biología y Genética Molecular, CSIC-Universidad de Valladolid, 47002 Valladolid, Spain
| | | | - Victoria Cachofeiro
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain;
- Ciber de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28222 Madrid, Spain;
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain
- Correspondence: (E.M.-M.); (V.C.); Tel.: +34-913-941-483 (E.M.-M.); +34-913-941-489 (V.C.)
| |
Collapse
|
11
|
Habibi J, DeMarco VG, Hulse JL, Hayden MR, Whaley-Connell A, Hill MA, Sowers JR, Jia G. Inhibition of sphingomyelinase attenuates diet - Induced increases in aortic stiffness. J Mol Cell Cardiol 2022; 167:32-39. [PMID: 35331697 PMCID: PMC9107502 DOI: 10.1016/j.yjmcc.2022.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/18/2022] [Indexed: 10/18/2022]
Abstract
Sphingomyelinases ensure ceramide production and play an integral role in cell turnover, inward budding of vesicles and outward release of exosomes. Recent data indicate a unique role for neutral sphingomyelinase (nSMase) in the control of ceramide-dependent exosome release and inflammatory pathways. Further, while inhibition of nSMase in vascular tissue attenuates the progression of atherosclerosis, little is known regarding its role on metabolic signaling and arterial vasomotor function. Accordingly, we hypothesized that nSMase inhibition with GW4869, would attenuate Western diet (WD) - induced increases in aortic stiffness through alterations in pathways which lead to oxidative stress, inflammation and vascular remodeling. Six week-old female C57BL/6L mice were fed either a WD containing excess fat (46%) and fructose (17.5%) for 16 weeks or a standard chow diet (CD). Mice were variably treated with GW4869 (2.0 μg/g body weight, intraperitoneal injection every 48 h for 12 weeks). WD feeding increased nSMase2 expression and activation while causing aortic stiffening and impaired vasorelaxation as determined by pulse wave velocity (PWV) and wire myography, respectively. Moreover, these functional abnormalities were associated with aortic remodeling and attenuated AMP-activated protein kinase, Sirtuin 1, and endothelial nitric oxide synthase activation. GW4869 treatment prevented the WD-induced increases in nSMase activation, PWV, and impaired endothelium dependent/independent vascular relaxation. GW4869 also inhibited WD-induced aortic CD36 expression, lipid accumulation, oxidative stress, inflammatory responses, as well as aortic remodeling. These findings indicate that targeting nSMase prevents diet - induced aortic stiffening and impaired vascular relaxation by attenuating oxidative stress, inflammation and adverse vascular remodeling.
Collapse
Affiliation(s)
- Javad Habibi
- Department of Medicine - Endocrinology and Metabolism, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Vincent G DeMarco
- Department of Medicine - Endocrinology and Metabolism, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Jack L Hulse
- Department of Medicine - Endocrinology and Metabolism, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Melvin R Hayden
- Department of Medicine - Endocrinology and Metabolism, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Adam Whaley-Connell
- Department of Medicine - Endocrinology and Metabolism, University of Missouri School of Medicine, Columbia, MO 65212, USA; Department of Medicine - Nephrology and Hypertension, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - James R Sowers
- Department of Medicine - Endocrinology and Metabolism, University of Missouri School of Medicine, Columbia, MO 65212, USA; Department of Medicine - Nephrology and Hypertension, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO 65201, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Guanghong Jia
- Department of Medicine - Endocrinology and Metabolism, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO 65201, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA.
| |
Collapse
|
12
|
Induction of Accelerated Aging in a Mouse Model. Cells 2022; 11:cells11091418. [PMID: 35563724 PMCID: PMC9102583 DOI: 10.3390/cells11091418] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/11/2022] [Accepted: 04/20/2022] [Indexed: 12/12/2022] Open
Abstract
With the global increase of the elderly population, the improvement of the treatment for various aging-related diseases and the extension of a healthy lifespan have become some of the most important current medical issues. In order to understand the developmental mechanisms of aging and aging-related disorders, animal models are essential to conduct relevant studies. Among them, mice have become one of the most prevalently used model animals for aging-related studies due to their high similarity to humans in terms of genetic background and physiological structure, as well as their short lifespan and ease of reproduction. This review will discuss some of the common and emerging mouse models of accelerated aging and related chronic diseases in recent years, with the aim of serving as a reference for future application in fundamental and translational research.
Collapse
|
13
|
Habibi J, Chen D, Hulse JL, Whaley-Connell A, Sowers JR, Jia G. Targeting mineralocorticoid receptors in diet-induced hepatic steatosis and insulin resistance. Am J Physiol Regul Integr Comp Physiol 2022; 322:R253-R262. [PMID: 35107025 PMCID: PMC8896998 DOI: 10.1152/ajpregu.00316.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mineralocorticoid receptor (MR) activation plays an important role in hepatic insulin resistance. However, the precise mechanisms by which MR activation promotes hepatic insulin resistance remains unclear. Therefore, we sought to investigate the roles and mechanisms by which MR activation promotes Western diet (WD)-induced hepatic steatosis and insulin resistance. Six-week-old C57BL6J mice were fed either mouse chow or a WD, high in saturated fat and refined carbohydrates, with or without the MR antagonist spironolactone (1 mg/kg/day) for 16 wk. WD feeding resulted in systemic insulin resistance at 8 and 16 wk. WD also induced impaired hepatic insulin metabolic signaling via phosphoinositide 3-kinases/protein kinase B pathways, which was associated with increased hepatic CD36, fatty acid transport proteins, fatty acid-binding protein-1, and hepatic steatosis. Meanwhile, consumption of a WD-induced hepatic mitochondria dysfunction, oxidative stress, and inflammatory responses. These abnormalities occurring in response to WD feeding were blunted with spironolactone treatment. Moreover, spironolactone promoted white adipose tissue browning and hepatic glucose transporter type 4 expression. These data suggest that enhanced hepatic MR signaling mediates diet-induced hepatic steatosis and dysregulation of adipose tissue browning, and subsequent hepatic mitochondria dysfunction, oxidative stress, inflammation, as well as hepatic insulin resistance.
Collapse
Affiliation(s)
- Javad Habibi
- 1Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,3Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri
| | - Dongqing Chen
- 1Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,3Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri
| | - Jack L. Hulse
- 1Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,3Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri
| | - Adam Whaley-Connell
- 1Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,2Division of Nephrology and Hypertension, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,3Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri
| | - James R. Sowers
- 1Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,2Division of Nephrology and Hypertension, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,3Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri,4Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri,5Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri
| | - Guanghong Jia
- 1Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri School of Medicine, Columbia, Missouri,3Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri,4Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| |
Collapse
|
14
|
Lieder B, Čonka J, Reiner AT, Zabel V, Ameur D, Somoza MM, Šebeková K, Celec P, Somoza V. Long-Term Consumption of a Sugar-Sweetened Soft Drink in Combination with a Western-Type Diet Is Associated with Morphological and Molecular Changes of Taste Markers Independent of Body Weight Development in Mice. Nutrients 2022; 14:nu14030594. [PMID: 35276952 PMCID: PMC8837962 DOI: 10.3390/nu14030594] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/20/2022] [Accepted: 01/27/2022] [Indexed: 02/01/2023] Open
Abstract
We investigated whether the long-term intake of a typical sugar-sweetened soft drink (sugar-sweetened beverage, SSB) alters markers for taste function when combined with a standard diet (chow) or a model chow mimicking a Western diet (WD). Adult male CD1 mice had ad libitum access to tap water or SSB in combination with either the chow or the WD for 24 weeks. Energy intake from fluid and food was monitored three times a week. Cardiometabolic markers (body weight and composition, waist circumference, glucose and lipid profile, and blood pressure) were analyzed at the end of the intervention, as was the number and size of the fungiform papillae as well as mRNA levels of genes associated with the different cell types of taste buds and taste receptors in the circumvallate papillae using a cDNA microarray and qPCR. Although the overall energy intake was higher in the WD groups, there was no difference in body weight or other cardiometabolic markers between the SSB and water groups. The chemosensory surface from the fungiform papillae was reduced by 36 ± 19% (p < 0.05) in the WD group after SSB compared to water intake. In conclusion, the consumption of the SSB reduced the chemosensory surface of the fungiform papillae of CD1 mice when applied in combination with a WD independent of body weight. The data suggest synergistic effects of a high sugar-high fat diet on taste dysfunction, which could further influence food intake and promote a vicious cycle of overeating and taste dysfunction.
Collapse
Affiliation(s)
- Barbara Lieder
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (A.T.R.); (V.Z.); (V.S.)
- Correspondence:
| | - Jozef Čonka
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, 81101 Bratislava, Slovakia; (J.Č.); (K.Š.); (P.C.)
| | - Agnes T. Reiner
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (A.T.R.); (V.Z.); (V.S.)
| | - Victoria Zabel
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (A.T.R.); (V.Z.); (V.S.)
| | - Dominik Ameur
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (D.A.); (M.M.S.)
| | - Mark M. Somoza
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (D.A.); (M.M.S.)
- Leibniz Institute for Food Systems Biology at the Technical University of Munich, 85345 Freising, Germany
- Food Chemistry and Molecular Sensory Science, Technical University of Munich, 85345 Freising, Germany
| | - Katarína Šebeková
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, 81101 Bratislava, Slovakia; (J.Č.); (K.Š.); (P.C.)
| | - Peter Celec
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, 81101 Bratislava, Slovakia; (J.Č.); (K.Š.); (P.C.)
| | - Veronika Somoza
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (A.T.R.); (V.Z.); (V.S.)
- Leibniz Institute for Food Systems Biology at the Technical University of Munich, 85345 Freising, Germany
- Nutritional Systems Biology, School of Life Sciences, Technical University of Munich, 85345 Freising, Germany
| |
Collapse
|
15
|
de Moraes Arnoso BJ, Magliaccio FM, de Araújo CA, de Andrade Soares R, Santos IB, de Bem GF, Fernandes-Santos C, Ognibene DT, de Moura RS, Resende AC, Daleprane JB, Costa CAD. Açaí seed extract (ASE) rich in proanthocyanidins improves cardiovascular remodeling by increasing antioxidant response in obese high-fat diet-fed mice. Chem Biol Interact 2022; 351:109721. [PMID: 34715092 DOI: 10.1016/j.cbi.2021.109721] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/24/2021] [Accepted: 10/23/2021] [Indexed: 02/06/2023]
Abstract
Obesity is recognized as an independent risk factor for cardiovascular diseases and is an important contributor to cardiac mortality. Açaí seed extract (ASE), rich in proanthocyanidins, has been shown to have potential anti-obesity effects. This study aimed to investigate the therapeutic effect of ASE in cardiovascular remodeling associated with obesity and compare it with that of rosuvastatin. Male C57BL/6 mice were fed a high-fat diet or a standard diet for 12 weeks. The ASE (300 mg/kg/day) and rosuvastatin (20 mg/kg/day) treatments started in the 8th week until the 12th week, totaling 4 weeks of treatment. Our data showed that treatment with ASE and rosuvastatin reduced body weight, ameliorated lipid profile, and improved cardiovascular remodeling. Treatment with ASE but not rosuvastatin reduced hyperglycemia and oxidative stress by reducing immunostaining of 8-isoprostane and increasing SOD-1 and GPx expression in HFD mice. ASE and rosuvastatin reduced NOX4 expression, increased SIRT-1 and Nrf2 expression and catalase and GPx activities, and improved vascular and cardiac remodeling in HFD mice. The therapeutic effect of ASE was similar to that of rosuvastatin in reducing dyslipidemia and cardiovascular remodeling but was superior in reducing oxidative damage and hyperglycemia, suggesting that ASE was a promising natural product for the treatment of cardiovascular alterations associated with obesity.
Collapse
Affiliation(s)
| | - Fabrizia Mansur Magliaccio
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Caroline Alves de Araújo
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Ricardo de Andrade Soares
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Izabelle Barcellos Santos
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Graziele Freitas de Bem
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Caroline Fernandes-Santos
- Department of Basic Sciences, Institute of Health, Fluminense Federal University, Nova Friburgo, RJ, Brazil
| | - Dayane Teixeira Ognibene
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Roberto Soares de Moura
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Angela Castro Resende
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Julio Beltrame Daleprane
- Department of Basic and Experimental Nutrition, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Cristiane Aguiar da Costa
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil.
| |
Collapse
|
16
|
Roy S, Sleiman MB, Jha P, Ingels JF, Chapman CJ, McCarty MS, Ziebarth JD, Hook M, Sun A, Zhao W, Huang J, Neuner SM, Wilmott LA, Shapaker TM, Centeno AG, Ashbrook DG, Mulligan MK, Kaczorowski CC, Makowski L, Cui Y, Read RW, Miller RA, Mozhui K, Williams EG, Sen S, Lu L, Auwerx J, Williams RW. Gene-by-environment modulation of lifespan and weight gain in the murine BXD family. Nat Metab 2021; 3:1217-1227. [PMID: 34552269 PMCID: PMC8478125 DOI: 10.1038/s42255-021-00449-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 08/06/2021] [Indexed: 02/07/2023]
Abstract
How lifespan and body weight vary as a function of diet and genetic differences is not well understood. Here we quantify the impact of differences in diet on lifespan in a genetically diverse family of female mice, split into matched isogenic cohorts fed a low-fat chow diet (CD, n = 663) or a high-fat diet (HFD, n = 685). We further generate key metabolic data in a parallel cohort euthanized at four time points. HFD feeding shortens lifespan by 12%: equivalent to a decade in humans. Initial body weight and early weight gains account for longevity differences of roughly 4-6 days per gram. At 500 days, animals on a HFD typically gain four times as much weight as control, but variation in weight gain does not correlate with lifespan. Classic serum metabolites, often regarded as health biomarkers, are not necessarily strong predictors of longevity. Our data indicate that responses to a HFD are substantially modulated by gene-by-environment interactions, highlighting the importance of genetic variation in making accurate individualized dietary recommendations.
Collapse
Affiliation(s)
- Suheeta Roy
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Maroun Bou Sleiman
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Pooja Jha
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Jesse F Ingels
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Casey J Chapman
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Melinda S McCarty
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Jesse D Ziebarth
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Michael Hook
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Anna Sun
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Wenyuan Zhao
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Jinsong Huang
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Sarah M Neuner
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Lynda A Wilmott
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Thomas M Shapaker
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Arthur G Centeno
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - David G Ashbrook
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Megan K Mulligan
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | | | - Liza Makowski
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Yan Cui
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Robert W Read
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Richard A Miller
- Department of Pathology, University of Michigan Geriatrics Center, Ann Arbor, MI, USA
| | - Khyobeni Mozhui
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Evan G Williams
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Saunak Sen
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Lu Lu
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Robert W Williams
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA.
| |
Collapse
|
17
|
Tuleta I, Frangogiannis NG. Fibrosis of the diabetic heart: Clinical significance, molecular mechanisms, and therapeutic opportunities. Adv Drug Deliv Rev 2021; 176:113904. [PMID: 34331987 PMCID: PMC8444077 DOI: 10.1016/j.addr.2021.113904] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/19/2021] [Accepted: 07/24/2021] [Indexed: 01/02/2023]
Abstract
In patients with diabetes, myocardial fibrosis may contribute to the pathogenesis of heart failure and arrhythmogenesis, increasing ventricular stiffness and delaying conduction. Diabetic myocardial fibrosis involves effects of hyperglycemia, lipotoxicity and insulin resistance on cardiac fibroblasts, directly resulting in increased matrix secretion, and activation of paracrine signaling in cardiomyocytes, immune and vascular cells, that release fibroblast-activating mediators. Neurohumoral pathways, cytokines, growth factors, oxidative stress, advanced glycation end-products (AGEs), and matricellular proteins have been implicated in diabetic fibrosis; however, the molecular links between the metabolic perturbations and activation of a fibrogenic program remain poorly understood. Although existing therapies using glucose- and lipid-lowering agents and neurohumoral inhibition may act in part by attenuating myocardial collagen deposition, specific therapies targeting the fibrotic response are lacking. This review manuscript discusses the clinical significance, molecular mechanisms and cell biology of diabetic cardiac fibrosis and proposes therapeutic targets that may attenuate the fibrotic response, preventing heart failure progression.
Collapse
Affiliation(s)
- Izabela Tuleta
- The Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), Albert Einstein College of Medicine, Bronx NY, USA
| | - Nikolaos G Frangogiannis
- The Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), Albert Einstein College of Medicine, Bronx NY, USA.
| |
Collapse
|
18
|
Fourny N, Lan C, Bernard M, Desrois M. Male and Female Rats Have Different Physiological Response to High-Fat High-Sucrose Diet but Similar Myocardial Sensitivity to Ischemia-Reperfusion Injury. Nutrients 2021; 13:2914. [PMID: 34578791 PMCID: PMC8472056 DOI: 10.3390/nu13092914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 11/17/2022] Open
Abstract
Prediabetes is a strong predictor of type 2 diabetes and its associated cardiovascular complications, but few studies explore sexual dimorphism in this context. Here, we aim to determine whether sex influences physiological response to high-fat high-sucrose diet (HFS) and myocardial tolerance to ischemia-reperfusion injury. Male and female Wistar rats were subjected to standard (CTRL) or HFS diet for 5 months. Then, ex-vivo experiments on isolated perfused heart model were performed to evaluate tolerance to ischemia-reperfusion injury. HFS diet induced fasting hyperglycemia and increased body fat percent to a similar level in both sexes. However, glucose intolerance was more pronounced in female HFS. Cholesterol was increased only in female while male displayed higher level of plasmatic leptin. We observed increased heart weight to tibia length ratio only in males, but we showed a similar decrease in tolerance to ischemia-reperfusion injury in female and male HFS compared with respective controls, characterized by impaired cardiac function, energy metabolism and coronary flow during reperfusion. In conclusion, as soon as glucose intolerance and hyperglycemia develop, we observe higher sensitivity of hearts to ischemia-reperfusion injury without difference between males and females.
Collapse
Affiliation(s)
- Natacha Fourny
- Aix Marseille University, CNRS, CRMBM, 13005 Marseille, France; (C.L.); (M.B.); (M.D.)
| | | | | | | |
Collapse
|
19
|
Withaar C, Lam CSP, Schiattarella GG, de Boer RA, Meems LMG. Heart failure with preserved ejection fraction in humans and mice: embracing clinical complexity in mouse models. Eur Heart J 2021; 42:4420-4430. [PMID: 34414416 PMCID: PMC8599003 DOI: 10.1093/eurheartj/ehab389] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/15/2021] [Accepted: 06/02/2021] [Indexed: 02/06/2023] Open
Abstract
Heart failure (HF) with preserved ejection fraction (HFpEF) is a multifactorial disease accounting for a large and increasing proportion of all clinical HF presentations. As a clinical syndrome, HFpEF is characterized by typical signs and symptoms of HF, a distinct cardiac phenotype and raised natriuretic peptides. Non-cardiac comorbidities frequently co-exist and contribute to the pathophysiology of HFpEF. To date, no therapy has proven to improve outcomes in HFpEF, with drug development hampered, at least partly, by lack of consensus on appropriate standards for pre-clinical HFpEF models. Recently, two clinical algorithms (HFA-PEFF and H2FPEF scores) have been developed to improve and standardize the diagnosis of HFpEF. In this review, we evaluate the translational utility of HFpEF mouse models in the context of these HFpEF scores. We systematically recorded evidence of symptoms and signs of HF or clinical HFpEF features and included several cardiac and extra-cardiac parameters as well as age and sex for each HFpEF mouse model. We found that most of the pre-clinical HFpEF models do not meet the HFpEF clinical criteria, although some multifactorial models resemble human HFpEF to a reasonable extent. We therefore conclude that to optimize the translational value of mouse models to human HFpEF, a novel approach for the development of pre-clinical HFpEF models is needed, taking into account the complex HFpEF pathophysiology in humans.
Collapse
Affiliation(s)
- Coenraad Withaar
- Department of Cardiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, the Netherlands
| | - Carolyn S P Lam
- Department of Cardiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, the Netherlands.,National University Heart Centre, Singapore and Duke-National University of Singapore
| | - Gabriele G Schiattarella
- Translational Approaches in Heart Failure and Cardiometabolic Disease, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany.,Department of Cardiology, Center for Cardiovascular Research (CCR), Charité - Universitätsmedizin Berlin, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.,Division of Cardiology, Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy.,Department of Internal Medicine (Cardiology), University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Rudolf A de Boer
- Department of Cardiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, the Netherlands
| | - Laura M G Meems
- Department of Cardiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, the Netherlands
| |
Collapse
|
20
|
Vileigas DF, de Souza SLB, Corrêa CR, Silva CCVDA, de Campos DHS, Padovani CR, Cicogna AC. The effects of two types of Western diet on the induction of metabolic syndrome and cardiac remodeling in obese rats. J Nutr Biochem 2021; 92:108625. [PMID: 33705955 DOI: 10.1016/j.jnutbio.2021.108625] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 02/02/2021] [Accepted: 02/04/2021] [Indexed: 12/13/2022]
Abstract
Metabolic syndrome (MetS) include obesity as a critical feature and is strongly associated with risk of cardiovascular disease (CVD). Insights into mechanisms involved in the pathophysiology of these clinical manifestations are essential for the development of therapeutic strategies. Thus, Western diets (WD) have been widely employed in diet-induced obesity (DIO) model. However, there are variations in fat and sugar proportions of such diets, making comparisons challenging. We aimed to assess the impact of two types of the WD on metabolic status and cardiac remodeling, to achieve a DIO model that better mimics the human pathogenesis of MetS-induced CVD. Male Wistar rats were distributed into three groups: control diet, Western diet fat (WDF), and Western diet sugar (WDS) for 41 weeks. Metabolic and inflammatory parameters and cardiac changes were characterized. WDF and WDS feeding promoted higher serum triglycerides, glucose intolerance, and insulin resistance, while just WDF presented inflammation in adipose tissue. WDF-fed rats showed increased catalase activity and malondialdehyde (MDA) and carbonyl protein levels, suggesting cardiac oxidative stress, while WDS-fed rats only raised MDA. Both WD equally elevated protein expressions involved in lipid metabolism, but only WDF downregulated the glycolysis pathway. Furthermore, the mechanical myocardial function was impaired in obese rats, being more relevant in WDF. In conclusion, both WD effectively triggered MetS features, although inflammation was detected just on the WDF-fed animals. Moreover, the WDF promoted a more pronounced functional, metabolic, and oxidative cardiac disorder, suggesting to be an adequate model for studying CVD in the scenario of MetS.
Collapse
Affiliation(s)
- Danielle Fernandes Vileigas
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
| | - Sérgio Luiz Borges de Souza
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Camila Renata Corrêa
- Department of Patology, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | | | | | - Carlos Roberto Padovani
- Department of Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Antonio Carlos Cicogna
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
| |
Collapse
|
21
|
Hill MA, Yang Y, Zhang L, Sun Z, Jia G, Parrish AR, Sowers JR. Insulin resistance, cardiovascular stiffening and cardiovascular disease. Metabolism 2021; 119:154766. [PMID: 33766485 DOI: 10.1016/j.metabol.2021.154766] [Citation(s) in RCA: 274] [Impact Index Per Article: 91.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/10/2021] [Accepted: 03/17/2021] [Indexed: 12/18/2022]
Abstract
The cardiometabolic syndrome (CMS) and obesity are typically characterized by a state of metabolic insulin resistance. As global and US rates of obesity increase there is an acceleration of the incidence and prevalence of insulin resistance along with associated cardiovascular disease (CVD). Under physiological conditions insulin regulates glucose homeostasis by enhancing glucose disposal in insulin sensitive tissues while also regulating delivery of nutrients through its vasodilation actions on small feed arteries. Specifically, insulin-mediated production of nitric oxide (NO) from the vascular endothelium leads to increased blood flow enhancing disposal of glucose. Typically, insulin resistance is considered as a decrease in sensitivity or responsiveness to the metabolic actions of insulin including insulin-mediated glucose disposal. However, a decreased sensitivity to the normal vascular actions of insulin, especially diminished nitric oxide production, plays an additional important role in the development of CVD in states of insulin resistance. One mechanism by which insulin resistance and attendant hyperinsulinemia promote CVD is via increases in vascular stiffness. Although obesity and insulin resistance are known to be associated with substantial increases in the prevalence of vascular fibrosis and stiffness the mechanisms and mediators that underlie vascular stiffening in insulin resistant states are complex and have only recently begun to be addressed. Current evidence supports the role of increased plasma levels of aldosterone and insulin and attendant reductions in bioavailable NO in the pathogenesis of impaired vascular relaxation and vascular stiffness in the CMS and obesity. Aldosterone and insulin both increase the activity of serum and glucocorticoid kinase 1 (SGK-1) which in turn is a major regulator of vascular and renal sodium (Na+) channel activity.The importance of SGK-1 in the pathogenesis of the CMS is highlighted by observations that gain of function mutations in SGK-1 in humans promotes hypertension, insulin resistance and obesity. In endothelial cells, an increase in Na+ flux contributes to remodeling of the cytoskeleton, reduced NO bioavailability and vascular stiffening. Thus, endothelial SGK-1 may represent a point of convergence for insulin and aldosterone signaling in arterial stiffness associated with obesity and the CMS. This review examines our contemporary understanding of the link between insulin resistance and increased vascular stiffness with emphasis placed on a role for enhanced SGK-1 signaling as a key node in this pathological process.
Collapse
Affiliation(s)
- Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA.
| | - Yan Yang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA
| | - Liping Zhang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Zhe Sun
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Guanghong Jia
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Alan R Parrish
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - James R Sowers
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA.
| |
Collapse
|
22
|
Hill MA, Jaisser F, Sowers JR. Role of the vascular endothelial sodium channel activation in the genesis of pathologically increased cardiovascular stiffness. Cardiovasc Res 2020; 118:130-140. [PMID: 33188592 DOI: 10.1093/cvr/cvaa326] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/10/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022] Open
Abstract
Cardiovascular (CV) stiffening represents a complex series of events evolving from pathological changes in individual cells of the vasculature and heart which leads to overt tissue fibrosis. While vascular stiffening occurs naturally with ageing it is accelerated in states of insulin (INS) resistance, such as obesity and type 2 diabetes. CV stiffening is clinically manifested as increased arterial pulse wave velocity and myocardial fibrosis-induced diastolic dysfunction. A key question that remains is how are these events mechanistically linked. In this regard, heightened activation of vascular mineralocorticoid receptors (MR) and hyperinsulinaemia occur in obesity and INS resistance states. Further, a downstream mediator of MR and INS receptor activation, the endothelial cell Na+ channel (EnNaC), has recently been identified as a key molecular determinant of endothelial dysfunction and CV fibrosis and stiffening. Increased activity of the EnNaC results in a number of negative consequences including stiffening of the cortical actin cytoskeleton in endothelial cells, impaired endothelial NO release, increased oxidative stress-meditated NO destruction, increased vascular permeability, and stimulation of an inflammatory environment. Such endothelial alterations impact vascular function and stiffening through regulation of vascular tone and stimulation of tissue remodelling including fibrosis. In the case of the heart, obesity and INS resistance are associated with coronary vascular endothelial stiffening and associated reductions in bioavailable NO leading to heart failure with preserved systolic function (HFpEF). After a brief discussion on mechanisms leading to vascular stiffness per se, this review then focuses on recent findings regarding the role of INS and aldosterone to enhance EnNaC activity and associated CV stiffness in obesity/INS resistance states. Finally, we discuss how coronary artery-mediated EnNaC activation may lead to cardiac fibrosis and HFpEF, a condition that is especially pronounced in obese and diabetic females.
Collapse
Affiliation(s)
- Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA.,Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, 134 Research Park Drive, Columbia, MO 65212, USA
| | - Frederic Jaisser
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris, F-75006 Paris, France
| | - James R Sowers
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA.,Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, 134 Research Park Drive, Columbia, MO 65212, USA.,Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA.,Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| |
Collapse
|
23
|
Sowers JR, Habibi J, Jia G, Bostick B, Manrique-Acevedo C, Lastra G, Yang Y, Chen D, Sun Z, Domeier TL, Durante W, Whaley-Connell AT, Hill MA, Jaisser F, DeMarco VG, Aroor AR. Endothelial sodium channel activation promotes cardiac stiffness and diastolic dysfunction in Western diet fed female mice. Metabolism 2020; 109:154223. [PMID: 32275972 PMCID: PMC7676474 DOI: 10.1016/j.metabol.2020.154223] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/20/2020] [Accepted: 04/03/2020] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Obesity is associated with myocardial fibrosis and impaired diastolic relaxation, abnormalities that are especially prevalent in women. Normal coronary vascular endothelial function is integral in mediating diastolic relaxation, and recent work suggests increased activation of the endothelial cell (EC) mineralocorticoid receptor (ECMR) is associated with impaired diastolic relaxation. As the endothelial Na+ channel (EnNaC) is a downstream target of the ECMR, we sought to determine whether EC-specific deletion of the critical alpha subunit, αEnNaC, would prevent diet induced-impairment of diastolic relaxation in female mice. METHODS AND MATERIALS Female αEnNaC KO mice and littermate controls were fed a Western diet (WD) high in fat (46%), fructose corn syrup (17.5%) and sucrose (17.5%) for 12-16 weeks. Measurements were conducted for in vivo cardiac function, in vitro cardiomyocyte stiffness and EnNaC activity in primary cultured ECs. Additional biochemical studies examined indicators of oxidative stress, including aspects of antioxidant Nrf2 signaling, in cardiac tissue. RESULTS Deletion of αEnNaC in female mice fed a WD significantly attenuated WD mediated impairment in diastolic relaxation. Improved cardiac relaxation was accompanied by decreased EnNaC-mediated Na+ currents in ECs and reduced myocardial oxidative stress. Further, deletion of αEnNaC prevented WD-mediated increases in isolated cardiomyocyte stiffness. CONCLUSION Collectively, these findings support the notion that WD feeding in female mice promotes activation of EnNaC in the vasculature leading to increased cardiomyocyte stiffness and diastolic dysfunction.
Collapse
Affiliation(s)
- James R Sowers
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Javad Habibi
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Guanghong Jia
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Brian Bostick
- Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Camila Manrique-Acevedo
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Guido Lastra
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Yan Yang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA
| | - Dongqing Chen
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Zhe Sun
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Timothy L Domeier
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - William Durante
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Adam T Whaley-Connell
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Michael A Hill
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA
| | - Frederic Jaisser
- INSERM, UMRS 1138, Cordeliers Research Center, Sorbonne University, USPC, Université Paris Descartes, Université Paris Diderot, F-75006 Paris, France
| | - Vincent G DeMarco
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Annayya R Aroor
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA.
| |
Collapse
|
24
|
Manrique-Acevedo C, Chinnakotla B, Padilla J, Martinez-Lemus LA, Gozal D. Obesity and cardiovascular disease in women. Int J Obes (Lond) 2020; 44:1210-1226. [PMID: 32066824 PMCID: PMC7478041 DOI: 10.1038/s41366-020-0548-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/20/2020] [Accepted: 02/06/2020] [Indexed: 12/12/2022]
Abstract
As the prevalence of obesity continues to grow worldwide, the health and financial burden of obesity-related comorbidities grows too. Cardiovascular disease (CVD) is clearly associated with increased adiposity. Importantly, women are at higher risk of CVD when obese and insulin resistant, in particular at higher risk of developing heart failure with preserved ejection fraction and ischemic heart disease. Increased aldosterone and mineralocorticoid receptor activation, aberrant estrogenic signaling and elevated levels of androgens are among some of the proposed mechanisms explaining the heightened CVD risk. In addition to traditional cardiovascular risk factors, understanding nontraditional risk factors specific to women, like excess weight gain during pregnancy, preeclampsia, gestational diabetes, and menopause are central to designing personalized interventions aimed to curb the epidemic of CVD. In the present review, we examine the available evidence supporting a differential cardiovascular impact of increased adiposity in women compared with men and the proposed pathophysiological mechanisms behind these differences. We also discuss women-specific cardiovascular risk factors associated with obesity and insulin resistance.
Collapse
Affiliation(s)
- Camila Manrique-Acevedo
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
| | - Bhavana Chinnakotla
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA
| | - Jaume Padilla
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Luis A Martinez-Lemus
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - David Gozal
- Department of Child Health, University of Missouri, Columbia, MO, USA.
| |
Collapse
|
25
|
Yang L, Li Y, Feng X, Zhang S, Xie Y. WITHDRAWN: HMGB1 and COX2 are regulated during organ damage following obesity-induced hypertension in a metabolic syndrome mouse model. Mol Cell Probes 2020:101592. [PMID: 32389788 DOI: 10.1016/j.mcp.2020.101592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/20/2020] [Accepted: 04/29/2020] [Indexed: 10/24/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
Collapse
Affiliation(s)
- Lingchao Yang
- Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| | - Yigang Li
- Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| | - Xiangfei Feng
- Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| | - Song Zhang
- Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| | - Yuquan Xie
- Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| |
Collapse
|
26
|
Xiong Y, Aroor AR, Ramirez-Perez FI, Jia G, Habibi J, Manrique-Acevedo C, Lastra G, Chen D, DeMarco VG, Martinez-Lemus LA, Hill MA, Jaisser F, Sowers JR, Whaley-Connell A. Western diet induces renal artery endothelial stiffening that is dependent on the epithelial Na + channel. Am J Physiol Renal Physiol 2020; 318:F1220-F1228. [PMID: 32281419 DOI: 10.1152/ajprenal.00517.2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Consumption of a Western diet (WD) induces central aortic stiffening that contributes to the transmittance of pulsatile blood flow to end organs, including the kidney. Our recent work supports that endothelial epithelial Na+ channel (EnNaC) expression and activation enhances aortic endothelial cell stiffening through reductions in endothelial nitric oxide (NO) synthase (eNOS) and bioavailable NO that result in inflammatory and oxidant responses and perivascular fibrosis. However, the role that EnNaC activation has on endothelial responses in the renal circulation remains unknown. We hypothesized that cell-specific deletion of the α-subunit of EnNaC would prevent WD-induced central aortic stiffness and protect the kidney from endothelial dysfunction and vascular stiffening. Twenty-eight-week-old female αEnNaC knockout and wild-type mice were fed either mouse chow or WD containing excess fat (46%), sucrose, and fructose (17.5% each). WD feeding increased fat mass, indexes of vascular stiffening in the aorta and renal artery (in vivo pulse wave velocity and ultrasound), and renal endothelial cell stiffening (ex vivo atomic force microscopy). WD further impaired aortic endothelium-dependent relaxation and renal artery compliance (pressure myography) without changes in blood pressure. WD-induced renal arterial stiffening occurred in parallel to attenuated eNOS activation, increased oxidative stress, and aortic and renal perivascular fibrosis. αEnNaC deletion prevented these abnormalities and support a novel mechanism by which WD contributes to renal arterial stiffening that is endothelium and Na+ channel dependent. These results demonstrate that cell-specific EnNaC is important in propagating pulsatility into the renal circulation, generating oxidant stress, reduced bioavailable NO, and renal vessel wall fibrosis and stiffening.
Collapse
Affiliation(s)
- Yuxin Xiong
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Division of Nephrology and Hypertension, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Endocrinology, The Second People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Annayya R Aroor
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Francisco I Ramirez-Perez
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri.,Department of Bioengineering, University of Missouri, Columbia, Missouri
| | - Guanghong Jia
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Javad Habibi
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Camila Manrique-Acevedo
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Guido Lastra
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Donqqing Chen
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Vincent G DeMarco
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medical Pharmacology and Physiology, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Luis A Martinez-Lemus
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri.,Department of Medical Pharmacology and Physiology, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Bioengineering, University of Missouri, Columbia, Missouri
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri.,Department of Medical Pharmacology and Physiology, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Frederic Jaisser
- Institut National de la Santé et de la Recherche Médicale, UMRS 1138, Cordeliers Research Center, Sorbonne University, University Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - James R Sowers
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| | - Adam Whaley-Connell
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri.,Diabetes and Cardiovascular Center, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Department of Medicine, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Nephrology and Hypertension, University of Missouri-Columbia School of Medicine, Columbia, Missouri.,Division of Endocrinology and Metabolism, University of Missouri-Columbia School of Medicine, Columbia, Missouri
| |
Collapse
|
27
|
Norton CE, Jacobsen NL, Sinkler SY, Manrique-Acevedo C, Segal SS. Female sex and Western-style diet protect mouse resistance arteries during acute oxidative stress. Am J Physiol Cell Physiol 2019; 318:C627-C639. [PMID: 31891519 DOI: 10.1152/ajpcell.00342.2019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A Western-style diet (WD; high in fat and carbohydrates) increases vascular oxidative stress. We hypothesized that vascular cells adapt to a WD by developing resilience to oxidative stress. Male and female C57BL/6J mice (4 wk of age) were fed a control diet (CD) or a WD for 16-20 wk. Superior epigastric arteries (SEAs; diameter, ~125 µm) were isolated and pressurized for study. Basal reactive oxygen species production was greatest in SEAs from males fed the WD. During exposure to H2O2 (200 μM, 50 min), propidium iodide staining identified nuclei of disrupted endothelial cells (ECs) and smooth muscle cells (SMCs). For mice fed the CD, death of SMCs (21%) and ECs (6%) was greater (P < 0.05) in SEAs from males than females (9% and 2%, respectively). WD consumption attenuated cell death most effectively in SEAs from males. With no difference at rest, H2O2 increased intracellular Ca2+ concentration ([Ca2+]i) to the greatest extent in SEAs from males, as shown by fura 2 fluorescence. Selective disruption of the endothelium (luminal air bubble) increased [Ca2+]i and SMC death during H2O2 exposure irrespective of sex; the WD reduced both responses most effectively in males. Nonselective transient receptor potential (TRP) channel inhibition (ruthenium red, 5 μM) attenuated the rise of [Ca2+]i, as did selective inhibition of TRP vanilloid type 4 (TRPV4) channels (HC-067047, 1 μM), which also attenuated cell death. In contrast, inhibition of voltage-gated Ca2+ channels (diltiazem, 50 μM) was without effect. Thus, for resistance arteries during acute oxidative stress: 1) ECs are more resilient than (and can protect) SMCs, 2) vessels from females are inherently more resilient than those from males, and 3) a WD increases vascular resilience by diminishing TRPV4 channel-dependent Ca2+ entry.
Collapse
Affiliation(s)
- Charles E Norton
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Nicole L Jacobsen
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Shenghua Y Sinkler
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Camila Manrique-Acevedo
- Department of Medicine, University of Missouri, Columbia, Missouri.,Research Services, Harry S Truman Memorial Veterans Hospital, Columbia, Missouri.,Dalton Cardiovascular Research Center, Columbia, Missouri
| | - Steven S Segal
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri.,Dalton Cardiovascular Research Center, Columbia, Missouri
| |
Collapse
|
28
|
Brandhorst S, Longo VD. Dietary Restrictions and Nutrition in the Prevention and Treatment of Cardiovascular Disease. Circ Res 2019; 124:952-965. [PMID: 30870119 DOI: 10.1161/circresaha.118.313352] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death in many developed countries and remains one of the major diseases strongly affected by the diet. Nutrition can affect CVD directly by contributing to the accumulation of vascular plaques and also indirectly by regulating the rate of aging. This review summarizes research on nutrition and CVD incidence based on a multipillar system that includes basic research focused on aging, epidemiological studies, clinical studies, and studies of centenarians. The relevant research linking nutrition and CVD with focus on macronutrients and aging will be highlighted. We will review some of the most relevant studies on nutrition and CVD treatment, also focusing on interventions known to delay aging. We will discuss both everyday dietary compositions, as well as intermittent and periodic fasting interventions with the potential to prevent and treat CVD.
Collapse
Affiliation(s)
- Sebastian Brandhorst
- From the Longevity Institute, Davis School of Gerontology, University of Southern California, Los Angeles (S.B., V.D.L.)
| | - Valter D Longo
- From the Longevity Institute, Davis School of Gerontology, University of Southern California, Los Angeles (S.B., V.D.L.).,Institute of Molecular Oncology, Italian Foundation for Cancer Research, Milan (V.D.L.)
| |
Collapse
|
29
|
Padilla J, Woodford ML, Lastra-Gonzalez G, Martinez-Diaz V, Fujie S, Yang Y, Lising AMC, Ramirez-Perez FI, Aroor AR, Morales-Quinones M, Ghiarone T, Whaley-Connell A, Martinez-Lemus LA, Hill MA, Manrique-Acevedo C. Sexual Dimorphism in Obesity-Associated Endothelial ENaC Activity and Stiffening in Mice. Endocrinology 2019; 160:2918-2928. [PMID: 31617909 PMCID: PMC6853665 DOI: 10.1210/en.2019-00483] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 10/10/2019] [Indexed: 02/08/2023]
Abstract
Obesity and insulin resistance stiffen the vasculature, with females appearing to be more adversely affected. As augmented arterial stiffness is an independent predictor of cardiovascular disease (CVD), the increased predisposition of women with obesity and insulin resistance to arterial stiffening may explain their heightened risk for CVD. However, the cellular mechanisms by which females are more vulnerable to arterial stiffening associated with obesity and insulin resistance remain largely unknown. In this study, we provide evidence that female mice are more susceptible to Western diet-induced endothelial cell stiffening compared with age-matched males. Mechanistically, we show that the increased stiffening of the vascular intima in Western diet-fed female mice is accompanied by enhanced epithelial sodium channel (ENaC) activity in endothelial cells (EnNaC). Our data further indicate that: (i) estrogen signaling through estrogen receptor α (ERα) increases EnNaC activity to a larger extent in females compared with males, (ii) estrogen-induced activation of EnNaC is mediated by the serum/glucocorticoid inducible kinase 1 (SGK-1), and (iii) estrogen signaling stiffens endothelial cells when nitric oxide is lacking and this stiffening effect can be reduced with amiloride, an ENaC inhibitor. In aggregate, we demonstrate a sexual dimorphism in obesity-associated endothelial stiffening, whereby females are more vulnerable than males. In females, endothelial stiffening with obesity may be attributed to estrogen signaling through the ERα-SGK-1-EnNaC axis, thus establishing a putative therapeutic target for female obesity-related vascular stiffening.
Collapse
Affiliation(s)
- Jaume Padilla
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Makenzie L Woodford
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Guido Lastra-Gonzalez
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans’ Hospital, Columbia, Missouri
| | - Vanesa Martinez-Diaz
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans’ Hospital, Columbia, Missouri
| | - Shumpei Fujie
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Faculty of Sport and Health Sciences, University of Tsukuba, Ibaraki, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Yan Yang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Alexandre M C Lising
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Francisco I Ramirez-Perez
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Biological Engineering, University of Missouri, Columbia, Missouri
| | - Annayya R Aroor
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans’ Hospital, Columbia, Missouri
| | | | - Thaysa Ghiarone
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Adam Whaley-Connell
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans’ Hospital, Columbia, Missouri
- Division of Nephrology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Luis A Martinez-Lemus
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Biological Engineering, University of Missouri, Columbia, Missouri
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Camila Manrique-Acevedo
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans’ Hospital, Columbia, Missouri
- Correspondence: Camila Manrique-Acevedo, MD, Department of Medicine, University of Missouri, D109 Diabetes Center UHC, One Hospital Drive, Columbia, Missouri 65212. E-mail:
| |
Collapse
|
30
|
Moss ME, Carvajal B, Jaffe IZ. The endothelial mineralocorticoid receptor: Contributions to sex differences in cardiovascular disease. Pharmacol Ther 2019; 203:107387. [PMID: 31271793 PMCID: PMC6848769 DOI: 10.1016/j.pharmthera.2019.06.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 06/26/2019] [Indexed: 12/20/2022]
Abstract
Cardiovascular disease remains the leading cause of death for both men and women. The observation that premenopausal women are protected from cardiovascular disease relative to age-matched men, and that this protection is lost with menopause, has led to extensive study of the role of sex steroid hormones in the pathogenesis of cardiovascular disease. However, the molecular basis for sex differences in cardiovascular disease is still not fully understood, limiting the ability to tailor therapies to male and female patients. Therefore, there is a growing need to investigate molecular pathways outside of traditional sex hormone signaling to fully understand sex differences in cardiovascular disease. Emerging evidence points to the mineralocorticoid receptor (MR), a steroid hormone receptor activated by the adrenal hormone aldosterone, as one such mediator of cardiovascular disease risk, potentially serving as a sex-dependent link between cardiovascular risk factors and disease. Enhanced activation of the MR by aldosterone is associated with increased risk of cardiovascular disease. Emerging evidence implicates the MR specifically within the endothelial cells lining the blood vessels in mediating some of the sex differences observed in cardiovascular pathology. This review summarizes the available clinical and preclinical literature concerning the role of the MR in the pathophysiology of endothelial dysfunction, hypertension, atherosclerosis, and heart failure, with a special emphasis on sex differences in the role of endothelial-specific MR in these pathologies. The available data regarding the molecular mechanisms by which endothelial-specific MR may contribute to sex differences in cardiovascular disease is also summarized. A paradigm emerges from synthesis of the literature in which endothelial-specific MR regulates vascular function in a sex-dependent manner in response to cardiovascular risk factors to contribute to disease. Limitations in this field include the relative paucity of women in clinical trials and, until recently, the nearly exclusive use of male animals in preclinical investigations. Enhanced understanding of the sex-specific roles of endothelial MR could lead to novel mechanistic insights underlying sex differences in cardiovascular disease incidence and outcomes and could identify additional therapeutic targets to effectively treat cardiovascular disease in men and women.
Collapse
Affiliation(s)
- M Elizabeth Moss
- Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA, United States of America; Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA, United States of America
| | - Brigett Carvajal
- Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA, United States of America; Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA, United States of America
| | - Iris Z Jaffe
- Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA, United States of America; Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA, United States of America.
| |
Collapse
|
31
|
Sowers JR, Habibi J, Aroor AR, Yang Y, Lastra G, Hill MA, Whaley-Connell A, Jaisser F, Jia G. Epithelial sodium channels in endothelial cells mediate diet-induced endothelium stiffness and impaired vascular relaxation in obese female mice. Metabolism 2019; 99:57-66. [PMID: 31302199 PMCID: PMC6901094 DOI: 10.1016/j.metabol.2019.153946] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 07/10/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Mineralocorticoid receptor activation of the epithelial sodium channel in endothelial cells (ECs) (EnNaC) is accompanied by aldosterone induced endothelial stiffening and impaired nitric oxide (NO)-mediated arterial relaxation. Recent data support enhanced activity of the alpha subunit of EnNaC (αEnNaC) mediates this aldosterone induced endothelial stiffening and associated endothelial NO synthase (eNOS) activation. There is mounting evidence that diet induced obesity diminishes expression and activation of AMP-activated protein kinase α (AMPKα), sirtuin 1 (Sirt1), which would be expected to lead to impaired downstream eNOS activation. Thereby, we posited that enhanced EnNaC activation contributes to diet induced obesity related increases in stiffness of the endothelium and diminished NO mediated vascular relaxation by increasing oxidative stress and related inhibition of AMPKα, Sirt1, and associated eNOS inactivation. MATERIALS/METHODS Sixteen to twenty week-old αEnNaC knockout (αEnNaC-/-) and wild type littermate (EnNaC+/+) female mice were fed a mouse chow or an obesogenic western diet (WD) containing excess fat (46%) and fructose (17.5%) for 16 weeks. Sodium currents of ECs, endothelial stiffness and NO mediated aortic relaxation were examined along with indices of aortic oxidative stress, vascular remodeling and fibrosis. RESULTS Enhanced EnNaC activation-mediated WD-induced increases in sodium currents in isolated lung ECs, increased endothelial stiffness and impaired aortic endothelium-dependent relaxation to acetylcholine (10-9-10-4 mol/L). These abnormalities occurred in conjunction with WD-mediated aortic tissue oxidative stress, inflammation, and decreased activation of AMPKα, Sirt1, and downstream eNOS were substantially mitigated in αEnNaC-/- mice. Importantly, αEnNaC-/- prevented WD induced increases in endothelial stiffness and related impairment of endothelium-dependent relaxation as well as aortic fibrosis and remodeling. However, EnNaC signaling was not involved in diet-induced abnormal expression of adipokines and CYP11b2 in abdominal aortic perivascular adipose tissue. CONCLUSION These data suggest that endothelial specific EnNaC activation mediates WD-induced endothelial stiffness, impaired eNOS activation, aortic fibrosis and remodeling through increased aortic oxidative stress and increased inflammation related to a reduction of AMPKα and Sirt 1 mediated eNOS phosphorylation/activation and NO production.
Collapse
Affiliation(s)
- James R Sowers
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Javad Habibi
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Annayya R Aroor
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Yan Yang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA
| | - Guido Lastra
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Adam Whaley-Connell
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Frederic Jaisser
- INSERM, UMRS 1138, Cordeliers Research Center, Sorbonne University, USPC, Université Paris Descartes, Université Paris Diderot, F-75006 Paris, France
| | - Guanghong Jia
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA; Department of Medicine, University of Missouri School of Medicine, Columbia, MO 65212, USA.
| |
Collapse
|
32
|
|
33
|
Spearman AD, Ke X, Fu Q, Lane RH, Majnik A. Adverse maternal environment leads to cardiac fibrosis in adult male mice. Birth Defects Res 2019; 110:1551-1555. [PMID: 30576090 DOI: 10.1002/bdr2.1428] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/21/2018] [Accepted: 11/02/2018] [Indexed: 01/28/2023]
Abstract
BACKGROUND Cardiac fibrosis is a cardinal feature of multiple types of cardiovascular disease, which lead to heart failure. Multiple studies connect adverse maternal environment (AME) with cardiac fibrosis. AME does not always result in fibrosis, though. An additional "insult", such as an adult Western diet (WD), is frequently necessary. The additive effects of AME and adult WD on cardiac fibrosis is not well-understood. AME can also alter DNA methylation. DNA methyltransferase (DNMT) and ten-eleven translocation (TET) are methylation modifying genes that regulate DNA methylation, but it is unknown if AME changes cardiac gene expression of DNMT and TET. We sought to use a model of AME and adult WD to investigate the development of cardiac fibrosis and cardiac mRNA expression of DNMT and TET genes. METHODS We exposed dams to WD or control diet (CD) 5 weeks before pregnancy and through lactation. We added environmental stressors during the last third of pregnancy to dams on WD to create AME. Dams on CD experienced no added stressors to create control maternal environment (CME). Male offspring were weaned at Postnatal Week 3 (W3) and placed on WD or CD to create four groups: CME-CD, CME-WD, AME-CD, and AME-WD. RESULTS AME-WD increased cardiac fibrosis in adulthood (p < .05), whereas AME-CD and CME-WD did not. TET1-3 and DNMT3a mRNA levels decreased in AME versus CME offspring (p < .01). CONCLUSION AME increases susceptibility to cardiac fibrosis in adult male mice. Early-life changes to TET expression may mediate susceptibility to fibrosis, but further testing is needed.
Collapse
Affiliation(s)
- Andrew D Spearman
- Department of Pediatrics, Division of Cardiology, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Xingrao Ke
- Department of Pediatrics, Division of Neonatology, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Qi Fu
- Department of Pediatrics, Division of Neonatology, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Robert H Lane
- Department of Pediatrics, Division of Neonatology, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Amber Majnik
- Department of Pediatrics, Division of Neonatology, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| |
Collapse
|
34
|
Aroor AR, Habibi J, Nistala R, Ramirez-Perez FI, Martinez-Lemus LA, Jaffe IZ, Sowers JR, Jia G, Whaley-Connell A. Diet-Induced Obesity Promotes Kidney Endothelial Stiffening and Fibrosis Dependent on the Endothelial Mineralocorticoid Receptor. Hypertension 2019; 73:849-858. [PMID: 30827147 PMCID: PMC6448566 DOI: 10.1161/hypertensionaha.118.12198] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 02/04/2019] [Indexed: 12/29/2022]
Abstract
Obesity is characterized by enhanced MR (mineralocorticoid receptor) activation, vascular stiffness, and associated cardiovascular and kidney disease. Consumption of a Western-style diet (WD), high in saturated fat and refined carbohydrates, by female mice, leads to obesity and vascular stiffening. Use of ECMR (endothelial cell-specific MR) knockout mice supports that ECMR activation is critical for development of vascular and cardiac fibrosis and stiffening. However, the role of ECMR activation in kidney inflammation and fibrosis remains unknown. We hypothesized that cell-specific deletion of ECMR would prevent WD-induced central aortic stiffness and protect the kidney from endothelial dysfunction and vascular stiffening. Four-week-old female ECMR KO and wild-type mice were fed either mouse chow or WD for 16 weeks. WD feeding increased body weight and fat mass, proteinuria, as well as vascular stiffness indices (pulse wave velocity and kidney artery stiffening) and impaired endothelial-dependent vasodilatation without blood pressure changes. The WD-induced kidney arterial stiffening was associated with attenuated eNOS (endothelial NO synthase) activation, increased oxidative stress, proinflammatory immune responses, alterations in extracellular matrix degradation pathways, and fibrosis. ECMR deletion prevented these abnormalities by improving eNOS activation and reducing macrophage proinflammatory M1 polarization, expression of TG2 (transglutaminase 2), and MMP (matrix metalloproteinase)-9. Our data support the concept that ECMR activation contributes to endothelial dysfunction, increased kidney artery fibrosis/stiffening, and impaired NOS (NO synthase) activation, processes associated with macrophage infiltration and polarization, inflammation, and oxidative stress, collectively resulting in tubulointerstitial fibrosis in females consuming a WD.
Collapse
Affiliation(s)
- Annayya R Aroor
- From the Diabetes and Cardiovascular Center (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Department of Medicine (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Division of Endocrinology and Metabolism (A.R.A., J.H., J.R.S., G.J., A.W.-C.)
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO (A.R.A., J.H., R.N., L.A.M.-L., J.R.S., A.W.-C.)
| | - Javad Habibi
- From the Diabetes and Cardiovascular Center (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Department of Medicine (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Division of Endocrinology and Metabolism (A.R.A., J.H., J.R.S., G.J., A.W.-C.)
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO (A.R.A., J.H., R.N., L.A.M.-L., J.R.S., A.W.-C.)
| | - Ravi Nistala
- From the Diabetes and Cardiovascular Center (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Department of Medicine (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Division of Nephrology and Hypertension (R.N., A.W.-C.)
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO (A.R.A., J.H., R.N., L.A.M.-L., J.R.S., A.W.-C.)
| | - Francisco I Ramirez-Perez
- Dalton Cardiovascular Research Center, University of Missouri-Columbia School of Medicine (F.I.R.-P., L.A.M.-L., J.R.S.)
| | - Luis A Martinez-Lemus
- Department of Medical Pharmacology and Physiology (L.A.M.-L., J.R.S.)
- Dalton Cardiovascular Research Center, University of Missouri-Columbia School of Medicine (F.I.R.-P., L.A.M.-L., J.R.S.)
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO (A.R.A., J.H., R.N., L.A.M.-L., J.R.S., A.W.-C.)
| | - Iris Z Jaffe
- Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA (I.Z.J.)
| | - James R Sowers
- From the Diabetes and Cardiovascular Center (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Department of Medicine (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Division of Endocrinology and Metabolism (A.R.A., J.H., J.R.S., G.J., A.W.-C.)
- Department of Medical Pharmacology and Physiology (L.A.M.-L., J.R.S.)
- Dalton Cardiovascular Research Center, University of Missouri-Columbia School of Medicine (F.I.R.-P., L.A.M.-L., J.R.S.)
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO (A.R.A., J.H., R.N., L.A.M.-L., J.R.S., A.W.-C.)
| | - Guanghong Jia
- From the Diabetes and Cardiovascular Center (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Department of Medicine (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Division of Endocrinology and Metabolism (A.R.A., J.H., J.R.S., G.J., A.W.-C.)
| | - Adam Whaley-Connell
- From the Diabetes and Cardiovascular Center (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Department of Medicine (A.R.A., J.H., R.N., J.R.S., G.J., A.W.-C.)
- Division of Endocrinology and Metabolism (A.R.A., J.H., J.R.S., G.J., A.W.-C.)
- Division of Nephrology and Hypertension (R.N., A.W.-C.)
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO (A.R.A., J.H., R.N., L.A.M.-L., J.R.S., A.W.-C.)
| |
Collapse
|
35
|
Effective Treatment of Diabetic Cardiomyopathy and Heart Failure with Reconstituted HDL (Milano) in Mice. Int J Mol Sci 2019; 20:ijms20061273. [PMID: 30871282 PMCID: PMC6470758 DOI: 10.3390/ijms20061273] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 02/21/2019] [Accepted: 03/08/2019] [Indexed: 12/16/2022] Open
Abstract
The risk of heart failure (HF) is prominently increased in patients with type 2 diabetes mellitus. The objectives of this study were to establish a murine model of diabetic cardiomyopathy induced by feeding a high-sugar/high-fat (HSHF) diet and to evaluate the effect of reconstituted HDLMilano administration on established HF in this model. The HSHF diet was initiated at the age of 12 weeks and continued for 16 weeks. To investigate the effect of reconstituted HDLMilano on HF, eight intraperitoneal administrations of MDCO-216 (100 mg/kg protein concentration) or of an identical volume of control buffer were executed with a 48-h interval starting at the age of 28 weeks. The HSHF diet-induced obesity, hyperinsulinemia, and type 2 diabetes mellitus. Diabetic cardiomyopathy was present in HSHF diet mice as evidenced by cardiac hypertrophy, increased interstitial and perivascular fibrosis, and decreased myocardial capillary density. Pressure-volume loop analysis indicated the presence of both systolic and diastolic dysfunction and of decreased cardiac output in HSHF diet mice. Treatment with MDCO-216 reversed pathological remodelling and cardiac dysfunction and normalized wet lung weight, indicating effective treatment of HF. No effect of control buffer injection was observed. In conclusion, reconstituted HDLMilano reverses HF in type 2 diabetic mice.
Collapse
|
36
|
Huang Y, Ting PY, Yao TM, Homma T, Brooks D, Katayama Rangel I, Adler GK, Romero JR, Williams JS, Pojoga LH, Williams GH. Histone demethylase LSD1 deficiency and biological sex: impact on blood pressure and aldosterone production. J Endocrinol 2019; 240:111-122. [PMID: 30400034 PMCID: PMC6824586 DOI: 10.1530/joe-18-0247] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 10/26/2018] [Indexed: 12/15/2022]
Abstract
Human risk allele carriers of lysine-specific demethylase 1 (LSD1) and LSD1-deficient mice have salt-sensitive hypertension for unclear reasons. We hypothesized that LSD1 deficiency causes dysregulation of aldosterone's response to salt intake resulting in increased cardiovascular risk factors (blood pressure and microalbumin). Furthermore, we determined the effect of biological sex on these potential abnormalities. To test our hypotheses, LSD1 male and female heterozygote-knockout (LSD1+/-) and WT mice were assigned to two age groups: 18 weeks and 36 weeks. Plasma aldosterone levels and aldosterone production from zona glomerulosa cells studied ex vivo were greater in both male and female LSD1+/- mice consuming a liberal salt diet as compared to WT mice consuming the same diet. However, salt-sensitive blood pressure elevation and increased microalbuminuria were only observed in male LSD1+/- mice. These data suggest that LSD1 interacts with aldosterone's secretory response to salt intake. Lack of LSD1 causes inappropriate aldosterone production on a liberal salt diet; males appear to be more sensitive to this aldosterone increase as males, but not females, develop salt sensitivity of blood pressure and increased microalbuminuria. The mechanism responsible for the cardiovascular protective effect in females is uncertain but may be related to estrogen modulating the effect of mineralocorticoid receptor activation.
Collapse
Affiliation(s)
- Yuefei Huang
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Pei Yee Ting
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Tham M Yao
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Tsuyoshi Homma
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Danielle Brooks
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Isis Katayama Rangel
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gail K Adler
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jose R Romero
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan S Williams
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Luminita H Pojoga
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gordon H Williams
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
37
|
Liu M, Jeong EM, Liu H, Xie A, So EY, Shi G, Jeong GE, Zhou A, Dudley SC. Magnesium supplementation improves diabetic mitochondrial and cardiac diastolic function. JCI Insight 2019; 4:123182. [PMID: 30626750 DOI: 10.1172/jci.insight.123182] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 12/05/2018] [Indexed: 01/11/2023] Open
Abstract
In heart failure and type 2 diabetes mellitus (DM), the majority of patients have hypomagnesemia, and magnesium (Mg) supplementation has improved cardiac function and insulin resistance. Recently, we have shown that DM can cause cardiac diastolic dysfunction (DD). Therefore, we hypothesized that Mg supplementation would improve diastolic function in DM. High-fat diet-induced diabetic mouse hearts showed increased cardiac DD and hypertrophy. Mice with DM showed a significantly increased E/e' ratio (the ratio of transmitral Doppler early filling velocity [E] to tissue Doppler early diastolic mitral annular velocity [e']) in the echocardiogram, left ventricular end diastolic volume (LVEDV), incidence of DD, left ventricular posterior wall thickness in diastole (PWTd), and ratio of heart weight to tibia length (HW/TL) when compared with controls. DM mice also had hypomagnesemia. Ventricular cardiomyocytes isolated from DM mice exhibited decreased mitochondrial ATP production, a 1.7- ± 0.2-fold increase of mitochondrial ROS, depolarization of the mitochondrial membrane potential, and mitochondrial Ca2+ overload. Dietary Mg administration (50 mg/ml in the drinking water) for 6 weeks increased plasma Mg concentration and improved cardiac function. At the cellular level, Mg improved mitochondrial function with increased ATP, decreased mitochondrial ROS and Ca2+ overload, and repolarized mitochondrial membrane potential. In conclusion, Mg supplementation improved mitochondrial function, reduced oxidative stress, and prevented DD in DM.
Collapse
Affiliation(s)
- Man Liu
- Division of Cardiology, Department of Medicine, the Lillehei Heart Institute, University of Minnesota at Twin Cities, Minneapolis, Minnesota
| | - Euy-Myoung Jeong
- Cardiovascular Research Center, Lifespan Rhode Island Hospital, Providence, Rhode Island.,The Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Hong Liu
- Division of Cardiology, Department of Medicine, the Lillehei Heart Institute, University of Minnesota at Twin Cities, Minneapolis, Minnesota
| | - An Xie
- Division of Cardiology, Department of Medicine, the Lillehei Heart Institute, University of Minnesota at Twin Cities, Minneapolis, Minnesota
| | - Eui Young So
- Cardiovascular Research Center, Lifespan Rhode Island Hospital, Providence, Rhode Island.,The Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Guangbin Shi
- Cardiovascular Research Center, Lifespan Rhode Island Hospital, Providence, Rhode Island
| | | | - Anyu Zhou
- Cardiovascular Research Center, Lifespan Rhode Island Hospital, Providence, Rhode Island.,The Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Samuel C Dudley
- Division of Cardiology, Department of Medicine, the Lillehei Heart Institute, University of Minnesota at Twin Cities, Minneapolis, Minnesota
| |
Collapse
|
38
|
Alex L, Russo I, Holoborodko V, Frangogiannis NG. Characterization of a mouse model of obesity-related fibrotic cardiomyopathy that recapitulates features of human heart failure with preserved ejection fraction. Am J Physiol Heart Circ Physiol 2018; 315:H934-H949. [PMID: 30004258 PMCID: PMC6230908 DOI: 10.1152/ajpheart.00238.2018] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/25/2018] [Accepted: 07/05/2018] [Indexed: 12/12/2022]
Abstract
Heart failure with preserved ejection fraction (HFpEF) is caused, or exacerbated by, a wide range of extracardiac conditions. Diabetes, obesity, and metabolic dysfunction are associated with a unique HFpEF phenotype, characterized by inflammation, cardiac fibrosis, and microvascular dysfunction. Development of new therapies for HFpEF is hampered by the absence of reliable animal models. The leptin-resistant db/ db mouse has been extensively studied as a model of diabetes-associated cardiomyopathy; however, data on the functional and morphological alterations in db/ db hearts are conflicting. In the present study, we report a systematic characterization of the cardiac phenotype in db/ db mice, focusing on the time course of functional and histopathological alterations and on the identification of sex-specific cellular events. Although both male and female db/ db mice developed severe obesity, increased adiposity, and hyperglycemia, female mice had more impressive weight gain and exhibited a modest but significant increase in blood pressure. db/ db mice had hypertrophic ventricular remodeling and diastolic dysfunction with preserved ejection fraction; the increase in left ventricular mass was accentuated in female mice. Histological analysis showed that both male and female db/ db mice had cardiomyocyte hypertrophy and interstitial fibrosis, associated with marked thickening of the perimysial collagen, and expansion of the periarteriolar collagen network, in the absence of replacement fibrosis. In vivo and in vitro experiments showed that fibrotic changes in db/ db hearts were associated with increased collagen synthesis by cardiac fibroblasts, in the absence of periostin, α-smooth muscle actin, or fibroblast activation protein overexpression. Male db/ db mice exhibited microvascular rarefaction. In conclusion, the db/ db mouse model recapitulates functional and histological features of human HFpEF associated with metabolic dysfunction. Development of fibrosis in db/ db hearts, in the absence of myofibroblast conversion, suggests that metabolic dysfunction may activate an alternative profibrotic pathway associated with accentuated extracellular matrix protein synthesis. NEW & NOTEWORTHY We provide a systematic analysis of the sex-specific functional and structural myocardial alterations in db/ db mice. Obese diabetic C57BL6J db/ db mice exhibit diastolic dysfunction with preserved ejection fraction, associated with cardiomyocyte hypertrophy, interstitial/perivascular fibrosis, and microvascular rarefaction, thus recapitulating aspects of human obesity-related heart failure with preserved ejection fraction. Myocardial fibrosis in db/ db mice is associated with a matrix-producing fibroblast phenotype, in the absence of myofibroblast conversion, suggesting an alternative mechanism of activation.
Collapse
MESH Headings
- Adiposity
- Animals
- Cardiomyopathies/etiology
- Cardiomyopathies/metabolism
- Cardiomyopathies/pathology
- Cardiomyopathies/physiopathology
- Cells, Cultured
- Disease Models, Animal
- Echocardiography, Doppler
- Extracellular Matrix/metabolism
- Extracellular Matrix/pathology
- Extracellular Matrix Proteins/metabolism
- Female
- Fibroblasts/metabolism
- Fibroblasts/pathology
- Fibrosis
- Heart Failure/etiology
- Heart Failure/metabolism
- Heart Failure/pathology
- Heart Failure/physiopathology
- Heart Ventricles/metabolism
- Heart Ventricles/pathology
- Heart Ventricles/physiopathology
- Humans
- Hypertension/etiology
- Hypertension/physiopathology
- Hypertrophy, Left Ventricular/etiology
- Hypertrophy, Left Ventricular/physiopathology
- Male
- Mice, Inbred C57BL
- Mice, Obese
- Myocardium/metabolism
- Myocardium/pathology
- Obesity/complications
- Obesity/genetics
- Obesity/physiopathology
- Sex Factors
- Stroke Volume
- Time Factors
- Ventricular Dysfunction, Left/etiology
- Ventricular Dysfunction, Left/physiopathology
- Ventricular Function, Left
- Ventricular Remodeling
Collapse
Affiliation(s)
- Linda Alex
- Department of Medicine (Cardiology), The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York
| | - Ilaria Russo
- Department of Medicine (Cardiology), The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York
| | - Volodymir Holoborodko
- Department of Medicine (Cardiology), The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York
| | - Nikolaos G Frangogiannis
- Department of Medicine (Cardiology), The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York
| |
Collapse
|
39
|
Jia G, Habibi J, Aroor AR, Hill MA, Yang Y, Whaley-Connell A, Jaisser F, Sowers JR. Epithelial Sodium Channel in Aldosterone-Induced Endothelium Stiffness and Aortic Dysfunction. Hypertension 2018; 72:731-738. [PMID: 29987101 PMCID: PMC6202124 DOI: 10.1161/hypertensionaha.118.11339] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/12/2018] [Indexed: 12/15/2022]
Abstract
Enhanced activation of the endothelial mineralocorticoid receptor contributes to the development of arterial stiffness, which is an independent predictor of cardiovascular disease. Previously, we showed that enhanced endothelium mineralocorticoid receptor signaling in female mice prompts expression and translocation of the α-subunit of the epithelial sodium channel to the endothelial cell (EC) surface (EnNaC) inducing vascular fibrosis and stiffness. Further, amiloride, an epithelial sodium channel antagonist, inhibits vascular fibrosis, remodeling, and stiffness induced by feeding a Western diet high in saturated fat and refined carbohydrates. However, how this occurs remains unknown. Thereby, we hypothesized that endothelial cell-specific EnNaC activation is necessary for aldosterone-mediated endothelium stiffness. To address this notion, EnNaC α-subunit knockout (EnNaC-/-) and wild-type littermate female mice were administrated aldosterone (250 µg/kg per day) via osmotic minipumps for 3 weeks beginning at 25 to 28 weeks of age. In isolated mouse endothelial cells, inward sodium currents were significantly reduced in amiloride controls, as well as in EnNaC-/-. Likewise, aldosterone-induced endothelium stiffness was increased and endothelium-dependent relaxation less in EnNaC-/- versus wild-type. Further, EnNaC-/- mice exhibited attenuated responses to aldosterone infusion, including aortic endoplasmic reticulum stress, endothelium nitric oxide synthase activation, endothelium permeability, expression of proinflammatory cytokines, oxidative stress, and aortic collagen 1 deposition, supporting the notion that αEnNaC subunit activation contributes to these vascular responses.
Collapse
Affiliation(s)
- Guanghong Jia
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO, 65212, USA
- Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO, 65201, USA
| | - Javad Habibi
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO, 65212, USA
- Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO, 65201, USA
| | - Annayya R. Aroor
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO, 65212, USA
- Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO, 65201, USA
| | - Michael A. Hill
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, 65212, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, 65212, USA
| | - Yan Yang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, 65212, USA
| | - Adam Whaley-Connell
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO, 65212, USA
- Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO, 65201, USA
| | - Frederic Jaisser
- INSERM, UMR_S 1138, Team 1, Centre de Recherche des Cordeliers, UPMC Univ Paris 06, Université Paris Descartes, F-75006, Paris, France
| | - James R. Sowers
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO, 65212, USA
- Research Service, Harry S Truman Memorial Veterans Hospital, Research Service, 800 Hospital Dr, Columbia, MO, 65201, USA
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, 65212, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, 65212, USA
| |
Collapse
|
40
|
Mineralocorticoids and Cardiovascular Disease in Females with Insulin Resistance and Obesity. Curr Hypertens Rep 2018; 20:88. [PMID: 30109433 DOI: 10.1007/s11906-018-0887-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF THE REVIEW In the present review, we will discuss the evidence and the mechanisms underlying the complex interplay between obesity, mineralocorticoid receptor activation, and cardiovascular dysfunction with special emphasis on the pathogenesis of cardiovascular disease (CVD) in obese and insulin-resistant females. RECENT FINDINGS Since the initial isolation of aldosterone in 1953 and the cloning of the mineralocorticoid receptor (MR) decades later, our understanding has expanded tremendously regarding their involvement in the pathogenesis of CVD. Recent results from both pre-clinical and clinical studies support a close correlation between increase adiposity and enhanced aldosterone production (MR activation). Importantly, insulin resistance and obese females are more prone to the deleterious cardiovascular effects of MR activation, and enhanced MR activation in females has emerged as an important causative event in the genesis of a more severe CVD in diabetic women. Different clinical trials have been completed examining the effect of MR blockade in subjects with CVD. Despite its important beneficial mortality impact, side effects are frequent and a newer MR antagonist, finerenone, with less risk of hyperkalemia is currently being tested in large clinical trials.
Collapse
|
41
|
Aroor AR, Das NA, Carpenter AJ, Habibi J, Jia G, Ramirez-Perez FI, Martinez-Lemus L, Manrique-Acevedo CM, Hayden MR, Duta C, Nistala R, Mayoux E, Padilla J, Chandrasekar B, DeMarco VG. Glycemic control by the SGLT2 inhibitor empagliflozin decreases aortic stiffness, renal resistivity index and kidney injury. Cardiovasc Diabetol 2018; 17:108. [PMID: 30060748 PMCID: PMC6065158 DOI: 10.1186/s12933-018-0750-8] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 07/23/2018] [Indexed: 02/06/2023] Open
Abstract
Background Arterial stiffness is emerging as an independent risk factor for the development of chronic kidney disease. The sodium glucose co-transporter 2 (SGLT2) inhibitors, which lower serum glucose by inhibiting SGLT2-mediated glucose reabsorption in renal proximal tubules, have shown promise in reducing arterial stiffness and the risk of cardiovascular and kidney disease in individuals with type 2 diabetes mellitus. Since hyperglycemia contributes to arterial stiffness, we hypothesized that the SGLT2 inhibitor empagliflozin (EMPA) would improve endothelial function, reduce aortic stiffness, and attenuate kidney disease by lowering hyperglycemia in type 2 diabetic female mice (db/db). Materials/methods Ten-week-old female wild-type control (C57BLKS/J) and db/db (BKS.Cg-Dock7m+/+Leprdb/J) mice were divided into three groups: lean untreated controls (CkC, n = 17), untreated db/db (DbC, n = 19) and EMPA-treated db/db mice (DbE, n = 19). EMPA was mixed with normal mouse chow at a concentration to deliver 10 mg kg−1 day−1, and fed for 5 weeks, initiated at 11 weeks of age. Results Compared to CkC, DbC showed increased glucose levels, blood pressure, aortic and endothelial cell stiffness, and impaired endothelium-dependent vasorelaxation. Furthermore, DbC exhibited impaired activation of endothelial nitric oxide synthase, increased renal resistivity and pulsatility indexes, enhanced renal expression of advanced glycation end products, and periarterial and tubulointerstitial fibrosis. EMPA promoted glycosuria and blunted these vascular and renal impairments, without affecting increases in blood pressure. In addition, expression of “reversion inducing cysteine rich protein with Kazal motifs” (RECK), an anti-fibrotic mediator, was significantly suppressed in DbC kidneys and partially restored by EMPA. Confirming the in vivo data, EMPA reversed high glucose-induced RECK suppression in human proximal tubule cells. Conclusions Empagliflozin ameliorates kidney injury in type 2 diabetic female mice by promoting glycosuria, and possibly by reducing systemic and renal artery stiffness, and reversing RECK suppression.
Collapse
Affiliation(s)
- Annayya R Aroor
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO, USA.,Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA.,Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Nitin A Das
- Cardiothoracic Surgery, University of Texas Health Science Center, San Antonio, San Antonio, TX, USA
| | - Andrea J Carpenter
- Cardiothoracic Surgery, University of Texas Health Science Center, San Antonio, San Antonio, TX, USA
| | - Javad Habibi
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO, USA.,Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA.,Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Guanghong Jia
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO, USA.,Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA.,Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | | | - Luis Martinez-Lemus
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA.,Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Camila M Manrique-Acevedo
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO, USA.,Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA.,Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Melvin R Hayden
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO, USA.,Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA
| | - Cornel Duta
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA.,Division of Nephrology, Department of Medicine, University of Missouri, Columbia, MO, USA
| | - Ravi Nistala
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA.,Division of Nephrology, Department of Medicine, University of Missouri, Columbia, MO, USA
| | - Eric Mayoux
- Boehringer Ingelheim, Biberach an der Riss, Germany
| | - Jaume Padilla
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA.,Department of Child Health, University of Missouri, Columbia, MO, USA.,Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
| | - Bysani Chandrasekar
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA.,Division of Cardiology, Department of Medicine, University of Missouri, Columbia, MO, USA.,Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA.,Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Vincent G DeMarco
- Diabetes and Cardiovascular Center, University of Missouri School of Medicine, Columbia, MO, USA. .,Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO, USA. .,Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA. .,Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA. .,Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri-Columbia School of Medicine, D110, DC043.0, One Hospital Dr, Columbia, MO, 65212, USA.
| |
Collapse
|
42
|
Abstract
PURPOSE OF REVIEW Increased arterial stiffness, an abnormal structural and functional change in the vascular wall, is a precursor for hypertension, coronary heart disease, stroke, and associated cardiovascular disease (CVD). The aim of this paper is to review the etiology of arterial stiffening and potential therapeutic approaches to modulate arterial fibrosis and stiffness. RECENT FINDINGS The Framingham Heart Study demonstrated that arterial stiffness is an independent predictor of CVD and related morbidity and mortality. Dysfunction of endothelial cells, vascular smooth muscle cells, extracellular matrix, and other functional elements of the vessel wall contribute to underlying pathophysiology of increased arterial stiffness. An activated renin-angiotensin-aldosterone system, oxidative stress, abnormal peri-vascular adipose tissue, inflammation, and increased sympathetic nervous system activity are associated with the development and progression of arterial fibrosis, stiffening, and associated CVD. In this review, we will discuss the structural and function changes and mechanisms of the vessel wall in arterial stiffness and provide potential therapeutic strategies.
Collapse
|
43
|
Peyton KJ, Liu XM, Shebib AR, Johnson FK, Johnson RA, Durante W. Arginase inhibition prevents the development of hypertension and improves insulin resistance in obese rats. Amino Acids 2018; 50:747-754. [PMID: 29700652 DOI: 10.1007/s00726-018-2567-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 04/09/2018] [Indexed: 01/12/2023]
Abstract
This study investigated the temporal activation of arginase in obese Zucker rats (ZR) and determined if arginase inhibition prevents the development of hypertension and improves insulin resistance in these animals. Arginase activity, plasma arginine and nitric oxide (NO) concentration, blood pressure, and insulin resistance were measured in lean and obese animals. There was a chronological increase in vascular and plasma arginase activity in obese ZR beginning at 8 weeks of age. The increase in arginase activity in obese animals was associated with a decrease in insulin sensitivity and circulating levels of arginine and NO. The rise in arginase activity also preceded the increase in blood pressure in obese ZR detected at 12 weeks of age. Chronic treatment of 8-week-old obese animals with an arginase inhibitor or L-arginine for 4 weeks prevented the development of hypertension and improved plasma concentrations of arginine and NO. Arginase inhibition also improved insulin sensitivity in obese ZR while L-arginine supplementation had no effect. In conclusion, arginase inhibition prevents the development of hypertension and improves insulin sensitivity while L-arginine administration only mitigates hypertension in obese animals. Arginase represents a promising therapeutic target in ameliorating obesity-associated vascular and metabolic dysfunction.
Collapse
Affiliation(s)
- Kelly J Peyton
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, M409 Medical Sciences Building, One Hospital Drive, Columbia, MO, 65212, USA
| | - Xiao-Ming Liu
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, M409 Medical Sciences Building, One Hospital Drive, Columbia, MO, 65212, USA
| | - Ahmad R Shebib
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, M409 Medical Sciences Building, One Hospital Drive, Columbia, MO, 65212, USA
| | - Fruzsina K Johnson
- College of Osteopathic Medicine, William Cary University, Hattiesburg, MS, USA
| | - Robert A Johnson
- College of Osteopathic Medicine, William Cary University, Hattiesburg, MS, USA
| | - William Durante
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, M409 Medical Sciences Building, One Hospital Drive, Columbia, MO, 65212, USA.
| |
Collapse
|
44
|
do Carmo JM, da Silva AA, Freeman JN, Wang Z, Moak SP, Hankins MW, Drummond HA, Hall JE. Neuronal Suppressor of Cytokine Signaling 3: Role in Modulating Chronic Metabolic and Cardiovascular Effects of Leptin. Hypertension 2018; 71:1248-1257. [PMID: 29686012 DOI: 10.1161/hypertensionaha.118.11127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 03/06/2018] [Accepted: 03/19/2018] [Indexed: 12/21/2022]
Abstract
We determined whether deficiency of neuronal SOCS3 (suppressor of cytokine signaling 3)-a potential negative regulator of leptin signaling-amplifies the chronic effects of leptin on food intake, energy expenditure, glucose, and blood pressure (BP) and protects against adverse cardiometabolic effects of obesity. BP and heart rate were recorded by telemetry, and oxygen consumption (VO2) was monitored in 22-week-old mice with nervous system SOCS3 deficiency (SOCS3-Nestin-Cre) and control mice (SOCS3flox/flox) fed normal or high-fat-high-fructose diet from 6 to 22 weeks of age. Compared with controls, SOCS3-Nestin-Cre mice had lower plasma glucose (124±7 versus 146±10 mg/dL), consumed less food (3.0±0.4 versus 3.6±0.2 g/d), and had similar VO2 (77±6 versus 73±3 mL/kg per minute) and BP (103±3 versus 107±3 mm Hg) but higher heart rate (666±15 versus 602±17 bpm). In mice fed the normal diet, leptin infusion for 7 days caused similar reductions in food intake (2.3±0.1 versus 2.4±0.2 g) but greater increases in BP (15±3 versus 7±2 mm Hg) in SOCS3-Nestin-Cre compared with controls. Leptin reduced blood glucose concentrations in both groups. Male or female SOCS3-Nestin-Cre fed high-fat-high-fructose diet exhibited less weight gain, body fat, and liver steatosis and greater energy expenditure and heart rate compared with controls. Female SOCS3-Nestin-Cre mice fed high-fat-high-fructose diet had higher BP compared with controls. Thus, neuronal SOCS3 seems to play an important role in cardiometabolic regulation because neuronal SOCS3 deficiency reduced body weight and food intake while amplifying leptin's effects on appetite and BP and attenuating the adverse metabolic effects of high-fat-high-fructose diet.
Collapse
Affiliation(s)
- Jussara M do Carmo
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.)
| | - Alexandre A da Silva
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.).,Faculdade de Medicina, Departamento de Fisiologia, Barão de Mauá University Center, Ribeirão Preto, São Paulo, Brazil (A.A.d.S.).,and Faculdade de Medicina, Departamento de Fisiologia, Universidade Estadual de Minas Gerais, Passos, Brazil (A.A.d.S.)
| | - John Nathan Freeman
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.)
| | - Zhen Wang
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.)
| | - Sydney P Moak
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.)
| | - Michael W Hankins
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.)
| | - Heather A Drummond
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.)
| | - John E Hall
- From the Department of Physiology and Biophysics, Mississippi Center for Obesity Research, Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson (J.M.d.C., A.A.d.S., J.N.F., Z.W., S.P.M., M.W.H., H.A.D., J.E.H.)
| |
Collapse
|
45
|
Valero-Muñoz M, Sam F. Reply. JACC Basic Transl Sci 2018; 3:158-159. [PMID: 30062201 PMCID: PMC6059000 DOI: 10.1016/j.jacbts.2018.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Flora Sam
- Whitaker Cardiovascular Institute, Cardiovascular Medicine Section, Boston University School of Medicine, 700 Albany Street, W507, Boston, Massachusetts 02118
| |
Collapse
|
46
|
Qiao S, Mao G, Li H, Ma Z, Hong L, Zhang H, Wang C, An J. DPP-4 Inhibitor Sitagliptin Improves Cardiac Function and Glucose Homeostasis and Ameliorates β-Cell Dysfunction Together with Reducing S6K1 Activation and IRS-1 and IRS-2 Degradation in Obesity Female Mice. J Diabetes Res 2018; 2018:3641516. [PMID: 30116740 PMCID: PMC6079488 DOI: 10.1155/2018/3641516] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/08/2018] [Accepted: 06/14/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Chronic overnutrition leads to cardiac dysfunction and insulin (INS) resistance. Dipeptidyl peptidase-4 (DPP-4) improves glucose metabolism and insulin sensitivity in both human and animal models. In this study, we explored whether DPP-4 inhibitor sitagliptin (SIT) is involved in the protection of cardiac function and β-cell function using an obesity female mouse model. METHODS Six-week-old C57BL6/J mice were fed a high fat and fructose Western diet with DPP-4 inhibitor SIT for 12 weeks. Cardiac function was examined by echocardiography. Body weight, plasma glucose, and insulin concentrations were measured. The contents of total S6 kinase 1 (S6K1), phosphorylation of S6K1 activation, and INS docking proteins INS receptor substrates 1 and 2 (IRS-1, IRS-2) were assayed, and histology of heart tissue was performed. RESULTS Chronic Western diet consumption elevated plasma glucose and insulin and caused obesity, diastolic dysfunction, and β-cell dysfunction. DPP-4 inhibition with SIT resulted in reduction in body weight, fasting glucose, and plasma insulin, and improved cardiac diastolic dysfunction. SIT also decreased mTOR/S6K1 activation and prevented the degradation of IRS-1 and IRS-2. CONCLUSIONS This study revealed pleiotropic protective effects of DPP-4 inhibitor SIT on cardiac function, glycemia, and β-cell function together with reducing S6K1 activation and IRS-1 and IRS-2 degradation in the obesity female mouse model.
Collapse
Affiliation(s)
- Shigang Qiao
- Institute of Clinical Medicine Research, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
- Department of Anesthesiology and Perioperative Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
- Department of Pharmacology, Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Soochow University, No. 199 Renai Road, Suzhou 215123, China
| | - Guofang Mao
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
| | - Hua Li
- Department of Anesthesiology and Perioperative Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
| | - Zhimin Ma
- Department of Endocrinology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
| | - Lei Hong
- Institute of Clinical Medicine Research, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
| | - Huiling Zhang
- Department of Pharmacology, Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Soochow University, No. 199 Renai Road, Suzhou 215123, China
| | - Chen Wang
- Institute of Clinical Medicine Research, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
- Department of Anesthesiology and Perioperative Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
| | - Jianzhong An
- Institute of Clinical Medicine Research, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
| |
Collapse
|
47
|
Jia G, Habibi J, Aroor AR, Hill MA, DeMarco VG, Lee LE, Ma L, Barron BJ, Whaley-Connell A, Sowers JR. Enhanced endothelium epithelial sodium channel signaling prompts left ventricular diastolic dysfunction in obese female mice. Metabolism 2018; 78:69-79. [PMID: 28920862 DOI: 10.1016/j.metabol.2017.08.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/21/2017] [Accepted: 08/25/2017] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Enhanced activation of cell specific mineralocorticoid receptors (MRs) in obesity plays a key role in the development of cardiovascular disease including cardiac diastolic dysfunction as a critical prognosticator. Our previous investigations demonstrated that selective endothelium MR activation promotes a maladaptive inflammatory response and fibrosis in cardiovascular tissue in female mice fed a western diet (WD), and this was associated with expression and activation of the epithelial sodium channel on the surface of endothelial cells (EnNaC). However, the specific role of EnNaC signaling in the development of cardiac stiffness and diastolic dysfunction has not been examined. We hypothesized that targeted inhibition of EnNaC with low dose amiloride would prevent WD-induced diastolic dysfunction by suppressing abnormal endothelial permeability, inflammation and oxidative stress, and myocardial fibrosis. MATERIALS/METHODS Four week-old female C57BL6/J mice were fed a WD with or without a low dose of amiloride (1mg/kg/day) for 16weeks. Left ventricular cardiac function was evaluated by magnetic resonance imaging. In addition, we examined coronary vessel and cardiac remodeling, fibrosis, macrophage infiltration using immunohistochemistry, western blot and real time PCR. RESULTS Amiloride, an antagonist of EnNaC, attenuated WD-induced impairment of left ventricular initial filling rate and relaxation time. Cardiac diastolic dysfunction was associated with increases in coronary endothelium remodeling and permeability that paralleled WD-induced increases in F-actin and fibronectin, decreased expression of claudin-5 and occludin, and increased macrophage recruitment, M1 polarization, cardiac oxidative stress, fibrosis and maladaptive remodeling. CONCLUSION Our data support the concept that EnNaC activation mediates endothelium permeability which, in turn, promotes macrophage infiltration, M1 polarization, and oxidative stress, resulting in cardiac fibrosis and diastolic dysfunction in females with diet induced obesity.
Collapse
Affiliation(s)
- Guanghong Jia
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA.
| | - Javad Habibi
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Annayya R Aroor
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Michael A Hill
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA
| | - Vincent G DeMarco
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Li E Lee
- Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Radiology, University of Missouri school of Medicine, Columbia, MO 65212, USA
| | - Lixin Ma
- Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Radiology, University of Missouri school of Medicine, Columbia, MO 65212, USA
| | - Brady J Barron
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA
| | - Adam Whaley-Connell
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA
| | - James R Sowers
- Diabetes and Cardiovascular Research Center, University of Missouri School of Medicine, Columbia, MO 65212, USA; Research Service, Harry S Truman Memorial Veterans Hospital, 800 Hospital Dr, Columbia, MO 65201, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65212, USA.
| |
Collapse
|
48
|
Aroor AR, Jia G, Sowers JR. Cellular mechanisms underlying obesity-induced arterial stiffness. Am J Physiol Regul Integr Comp Physiol 2017; 314:R387-R398. [PMID: 29167167 DOI: 10.1152/ajpregu.00235.2016] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Obesity is an emerging pandemic driven by consumption of a diet rich in fat and highly refined carbohydrates (a Western diet) and a sedentary lifestyle in both children and adults. There is mounting evidence that arterial stiffness in obesity is an independent and strong predictor of cardiovascular disease (CVD), cognitive functional decline, and chronic kidney disease. Cardiovascular stiffness is a precursor to atherosclerosis, systolic hypertension, cardiac diastolic dysfunction, and impairment of coronary and cerebral flow. Moreover, premenopausal women lose the CVD protection normally afforded to them in the setting of obesity, insulin resistance, and diabetes, and this loss of CVD protection is inextricably linked to an increased propensity for arterial stiffness. Stiffness of endothelial and vascular smooth muscle cells, extracellular matrix remodeling, perivascular adipose tissue inflammation, and immune cell dysfunction contribute to the development of arterial stiffness in obesity. Enhanced endothelial cortical stiffness decreases endothelial generation of nitric oxide, and increased oxidative stress promotes destruction of nitric oxide. Our research over the past 5 years has underscored an important role of increased aldosterone and vascular mineralocorticoid receptor activation in driving development of cardiovascular stiffness, especially in females consuming a Western diet. In this review the cellular mechanisms of obesity-associated arterial stiffness are highlighted.
Collapse
Affiliation(s)
- Annayya R Aroor
- Diabetes and Cardiovascular Center, University of Missouri Columbia School of Medicine , Columbia, Missouri.,Harry S Truman Memorial Veterans Hospital , Columbia, Missouri
| | - Guanghong Jia
- Diabetes and Cardiovascular Center, University of Missouri Columbia School of Medicine , Columbia, Missouri.,Harry S Truman Memorial Veterans Hospital , Columbia, Missouri
| | - James R Sowers
- Diabetes and Cardiovascular Center, University of Missouri Columbia School of Medicine , Columbia, Missouri.,Departments of Medical Pharmacology and Physiology, University of Missouri Columbia School of Medicine , Columbia, Missouri.,Harry S Truman Memorial Veterans Hospital , Columbia, Missouri.,Dalton Cardiovascular Center Columbia , Columbia, Missouri
| |
Collapse
|
49
|
A High-Fructose-High-Coconut Oil Diet Induces Dysregulating Expressions of Hippocampal Leptin and Stearoyl-CoA Desaturase, and Spatial Memory Deficits in Rats. Nutrients 2017. [PMID: 28621759 PMCID: PMC5490598 DOI: 10.3390/nu9060619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We investigated the effects of high-fructose-high-fat diets with different fat compositions on metabolic parameters, hippocampal-dependent cognitive function, and brain leptin (as well as stearoyl-CoA desaturase (SCD1) mRNA expressions). Thirty-two male Wistar rats were divided into 3 groups, a control group (n = 8), a high-fructose soybean oil group (37.5% of fat calories, n = 12), and a high-fructose coconut oil group (37.5% of fat calories, n = 12) for 20 weeks. By the end of the study, the coconut oil group exhibited significantly higher serum fasting glucose, fructosamine, insulin, leptin, and triglyceride levels compared to those of the control and soybean oil groups. However, hippocampal leptin expression and leptin receptor mRNA levels were significantly lower, while SCD1 mRNA was significantly higher in rats fed the high-fructose-high-coconut oil diet than in rats fed the other experimental diets. In addition, the coconut oil group spent significantly less time in the target quadrant on the probe test in the Morris water maze (MWM) task. Rats fed the high-fructose-high-coconut oil diet for 20 weeks were prone to develop hyperglycemia, hyperinsulinemia, hyperleptinemia, and hypertriglyceridemia. These metabolic consequences may contribute to hippocampal-dependent memory impairment, accompanied by a lower central leptin level, and a higher SCD1 gene expression in the brain.
Collapse
|
50
|
Manrique-Acevedo C, Ramirez-Perez FI, Padilla J, Vieira-Potter VJ, Aroor AR, Barron BJ, Chen D, Haertling D, Declue C, Sowers JR, Martinez-Lemus LA. Absence of Endothelial ERα Results in Arterial Remodeling and Decreased Stiffness in Western Diet-Fed Male Mice. Endocrinology 2017; 158:1875-1885. [PMID: 28430983 PMCID: PMC5460939 DOI: 10.1210/en.2016-1831] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/13/2017] [Indexed: 01/16/2023]
Abstract
The role of estrogen receptor-α (ERα) signaling in the vasculature of females has been described under different experimental conditions and our group recently reported that lack of endothelial cell (EC) ERα in female mice fed a Western diet (WD) results in amelioration of vascular stiffness. Conversely, the role of ERα in the male vasculature in this setting has not been explored. In conditions of overnutrition and insulin resistance, augmented arterial stiffness, endothelial dysfunction, and arterial remodeling contribute to the development of cardiovascular disease. Here, we used a rodent model of decreased ERα expression in ECs [endothelial cell estrogen receptor-α knockout (EC-ERαKO)] to test the hypothesis that, similar to our findings in females, loss of ERα signaling in the endothelium of insulin-resistant males would result in decreased arterial stiffness. EC-ERαKO male mice and same-sex littermates were fed a WD (high in fructose and fat) for 20 weeks and then assessed for vascular function and stiffness. EC-ERαKO mice were heavier than littermates but exhibited decreased vascular stiffness without differences in endothelial-dependent vasodilatory responses. Mesenteric arteries from EC-ERαKO mice had significantly increased diameters, wall cross-sectional areas, and mean wall thicknesses, indicative of outward hypertrophic remodeling. This remodeling paralleled an increased vessel wall content of collagen and elastin, inhibition of matrix metalloproteinase activation and a decrease of the incremental modulus of elasticity. In addition, internal elastic lamina fenestrae were more abundant in the EC-ERαKO mice. In conclusion, loss of endothelial ERα reduces vascular stiffness in male mice fed a WD with an associated outward hypertrophic remodeling of resistance arteries.
Collapse
Affiliation(s)
- Camila Manrique-Acevedo
- Department of Medicine, Division of Endocrinology, University of Missouri, Columbia, Missouri 65212
| | - Francisco I Ramirez-Perez
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri 65211
- Department of Biological Engineering, University of Missouri, Columbia, Missouri 65211
| | - Jaume Padilla
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri 65211
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri 65211
- Department of Child Health, University of Missouri, Columbia, Missouri 65212
| | - Victoria J Vieira-Potter
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri 65211
| | - Annayya R Aroor
- Department of Medicine, Division of Endocrinology, University of Missouri, Columbia, Missouri 65212
| | - Brady J Barron
- Department of Medicine, Division of Endocrinology, University of Missouri, Columbia, Missouri 65212
| | - Dongqing Chen
- Department of Medicine, Division of Endocrinology, University of Missouri, Columbia, Missouri 65212
| | - Dominic Haertling
- School of Medicine, University of Missouri, Columbia, Missouri 65212
| | - Cory Declue
- School of Medicine, University of Missouri, Columbia, Missouri 65212
| | - James R Sowers
- Department of Medicine, Division of Endocrinology, University of Missouri, Columbia, Missouri 65212
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri 65211
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri 65212
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65201
| | - Luis A Martinez-Lemus
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri 65211
- Department of Biological Engineering, University of Missouri, Columbia, Missouri 65211
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri 65212
| |
Collapse
|