1
|
Differential Deleterious Impact of Highly Saturated Versus Monounsaturated Fat Intake on Vascular Function, Structure, and Mechanics in Mice. Nutrients 2021; 13:nu13031003. [PMID: 33808927 PMCID: PMC8003613 DOI: 10.3390/nu13031003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/13/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022] Open
Abstract
Vegetable oils such as palm oil (enriched in saturated fatty acids, SFA) and high-oleic-acid sunflower oil (HOSO, containing mainly monounsaturated fatty acids, MUFA) have emerged as the most common replacements for trans-fats in the food industry. The aim of this study is to analyze the impact of SFA and MUFA-enriched high-fat (HF) diets on endothelial function, vascular remodeling, and arterial stiffness compared to commercial HF diets. Five-week-old male C57BL6J mice were fed a standard (SD), a HF diet enriched with SFA (saturated oil-enriched Food, SOLF), a HF diet enriched with MUFA (unsaturated oil-enriched Food, UOLF), or a commercial HF diet for 8 weeks. Vascular function was analyzed in the thoracic aorta. Structural and mechanical parameters were assessed in mesenteric arteries by pressure myography. SOLF, UOLF, and HF diet reduced contractile responses to phenylephrine and induced endothelial dysfunction in the thoracic aorta. A significant increase in the β-index, and thus in arterial stiffness, was also detected in mesenteric arteries from the three HF groups, due to enhanced deposition of collagen in the vascular wall. SOLF also induced hypotrophic inward remodeling. In conclusion, these data demonstrate a deleterious effect of HF feeding on obesity-related vascular alterations that is exacerbated by SFA.
Collapse
|
2
|
Oxidative Stress and Vascular Damage in the Context of Obesity: The Hidden Guest. Antioxidants (Basel) 2021; 10:antiox10030406. [PMID: 33800427 PMCID: PMC7999611 DOI: 10.3390/antiox10030406] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 02/07/2023] Open
Abstract
The vascular system plays a central role in the transport of cells, oxygen and nutrients between different regions of the body, depending on the needs, as well as of metabolic waste products for their elimination. While the structure of different components of the vascular system varies, these structures, especially those of main arteries and arterioles, can be affected by the presence of different cardiovascular risk factors, including obesity. This vascular remodeling is mainly characterized by a thickening of the media layer as a consequence of changes in smooth muscle cells or excessive fibrosis accumulation. These vascular changes associated with obesity can trigger functional alterations, with endothelial dysfunction and vascular stiffness being especially common features of obese vessels. These changes can also lead to impaired tissue perfusion that may affect multiple tissues and organs. In this review, we focus on the role played by perivascular adipose tissue, the activation of the renin-angiotensin-aldosterone system and endoplasmic reticulum stress in the vascular dysfunction associated with obesity. In addition, the participation of oxidative stress in this vascular damage, which can be produced in the perivascular adipose tissue as well as in other components of the vascular wall, is updated.
Collapse
|
3
|
A Mixture of Algae and Extra Virgin Olive Oils Attenuates the Cardiometabolic Alterations Associated with Aging in Male Wistar Rats. Antioxidants (Basel) 2020; 9:antiox9060483. [PMID: 32503213 PMCID: PMC7346162 DOI: 10.3390/antiox9060483] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/23/2020] [Accepted: 05/28/2020] [Indexed: 02/06/2023] Open
Abstract
Aging is one of the major risk factors for suffering cardiovascular and metabolic diseases. Due to the increase in life expectancy, there is a strong interest in the search for anti-aging strategies to treat and prevent these aging-induced disorders. Both omega 3 polyunsaturated fatty acids (ω-3 PUFA) and extra virgin olive oil (EVOO) exert numerous metabolic and cardiovascular benefits in the elderly. In addition, EVOO constitutes an interesting ingredient to stabilize ω-3 PUFA and decrease their oxidation process due to its high content in antioxidant compounds. ω-3 PUFA are commonly obtained from fish. However, more ecological and sustainable sources, such as algae oil (AO) can also be used. In this study, we aimed to study the possible beneficial effect of an oil mixture composed by EVOO (75%) and AO (25%) rich in ω-3 PUFA (35% docosahexaenoic acid (DHA) and 20% eicosapentaenoic acid (EPA)) on the cardiometabolic alterations associated with aging. For this purpose; young (three months old) and old (24 months old) male Wistar rats were treated with vehicle or with the oil mixture (2.5 mL/kg) for 21 days. Treatment with the oil mixture prevented the aging-induced increase in the serum levels of saturated fatty acids (SFA) and the aging-induced decrease in the serum concentrations of mono-unsaturated fatty acids (MUFA). Old treated rats showed increased serum concentrations of EPA and DHA and decreased HOMA-IR index and circulating levels of total cholesterol, insulin and IL-6. Treatment with the oil mixture increased the mRNA levels of antioxidant and insulin sensitivity-related enzymes, as well as reduced the gene expression of pro-inflammatory markers in the liver and in cardiac and aortic tissues. In addition, the treatment also prevented the aging-induced endothelial dysfunction and vascular insulin resistance through activation of the PI3K/Akt pathway. Moreover, aortic rings from old rats treated with the oil mixture showed a decreased response to the vasoconstrictor AngII. In conclusion, treatment with a mixture of EVOO and AO improves the lipid profile, insulin sensitivity and vascular function in aged rats and decreases aging-induced inflammation and oxidative stress in the liver, and in the cardiovascular system. Thus, it could be an interesting strategy to deal with cardiometabolic alterations associated with aging.
Collapse
|
4
|
Dunn SM, Hilgers R, Das KC. Decreased EDHF-mediated relaxation is a major mechanism in endothelial dysfunction in resistance arteries in aged mice on prolonged high-fat sucrose diet. Physiol Rep 2018; 5:5/23/e13502. [PMID: 29212858 PMCID: PMC5727270 DOI: 10.14814/phy2.13502] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/20/2017] [Accepted: 10/23/2017] [Indexed: 02/01/2023] Open
Abstract
High‐fat sucrose (HFS) diet in aged individuals causes severe weight gain (obesity) with much higher risk of cardiovascular diseases such as hypertension or atherosclerosis. Endothelial dysfunction is a major contributor for these vascular disorders. We hypothesize that prolonged ingestion of HFS diet by aged mice would accentuate endothelial dysfunction in the small resistance arteries. Male C57BL/6J mice at 12 weeks of age were divided into four groups and fed either normal chow (NC) or high‐fat sucrose diet (HFS). Young group received NC for 4 months, and high‐fat diet (HFD) for 3 months and 1 month HFS + 10% Sucrose (HFS diet). Aged mice received NC for 12 months. Aged HFS group received HFD for 4 months + 1 month HFD + 10% sucrose + 8 months HFD. Total body weight, plasma blood glucose levels, and glucose tolerance were determined in all groups. Isolated mesenteric arteries were assessed for arterial remodeling, myogenic tone, and vasomotor responses using pressure and wire myography. Both young and aged HFS mice showed impaired glucose tolerance (Y‐NC, 137 ± 8.5 vs. Y‐NC HFS, 228 ± 11.71; A‐NC, 148 ± 6.42 vs. A‐HFS, 225 ± 10.99), as well as hypercholesterolemia (Y‐NC 99.50 ± 6.35 vs. Y‐HFS 220.40 ± 16.34 mg/dL; A‐NC 108.6 ± vs. A‐HFS 279 ± 21.64) and significant weight gain (Y‐NC 32.13 ± 0.8 g vs. Y‐HFS 47.87 ± 2.18 g; A‐NC 33.72 vs. A‐HFS 56.28 ± 3.47 g) compared to both groups of mice on NC. The mesenteric artery from mice with prolonged HFS diet resulted in outward hypertrophic remodeling, increased stiffness, reduced myogenic tone, impaired vasodilation, increased contractility and blunted nitric oxide (NO) and EDH‐mediated relaxations. Ebselen, a peroxinitrite scavenger rescued the endothelium derived relaxing factor (EDHF)‐mediated relaxations. Our findings suggest that prolonged diet‐induced obesity of aged mice can worsen small resistance artery endothelial dysfunction due to decrease in NO and EDHF‐mediated relaxation, but, EDHF‐mediated relaxation is a major contributor to overall endothelial dysfunction.
Collapse
Affiliation(s)
- Shannon M Dunn
- Department of Pharmacology & Neuroscience, Texas Tech University Health Sciences Center, Lubbock, Texas
| | | | - Kumuda C Das
- The Department of Translational & Vascular Biology, University of Texas Health Sciences Center at Tyler, Tyler, Texas
| |
Collapse
|
5
|
Lagrange J, Didelot M, Mohamadi A, Walton LA, Bloemen S, de Laat B, Louis H, Thornton SN, Derby B, Sherratt MJ, Fève B, Challande P, Akhtar R, Cruickshank JK, Lacolley P, Regnault V. Implication of Free Fatty Acids in Thrombin Generation and Fibrinolysis in Vascular Inflammation in Zucker Rats and Evolution with Aging. Front Physiol 2017; 8:949. [PMID: 29213245 PMCID: PMC5702631 DOI: 10.3389/fphys.2017.00949] [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] [Received: 05/03/2017] [Accepted: 11/08/2017] [Indexed: 12/31/2022] Open
Abstract
Background: The metabolic syndrome (MetS) and aging are associated with modifications in blood coagulation factors, vascular inflammation, and increased risk of thrombosis. Objectives: Our aim was to determine concomitant changes in thrombin generation in the blood compartment and at the surface of vascular smooth muscle cells (VSMCs) and its interplay with adipokines, free fatty acids (FFA), and metalloproteinases (MMPs) in obese Zucker rats that share features of the human MetS. Methods: Obese and age-matched lean Zucker rats were compared at 25 and 80 weeks of age. Thrombin generation was assessed by calibrated automated thrombography (CAT). Results: Endogenous thrombin potential (ETP) was increased in obese rats independent of platelets and age. Clot half-lysis time was delayed with obesity and age. Interleukin (IL)-1β and IL-13 were increased with obesity and age respectively. Addition of exogenous fibrinogen, leptin, linoleic, or palmitic acid increased thrombin generation in plasma whereas adiponectin had an opposite effect. ETP was increased at the surface of VSMCs from obese rats and addition of exogenous palmitic acid further enhanced ETP values. Gelatinase activity was increased in aorta at both ages in obese rats and MMP-2 activity was increased in VSMCs from obese rats. Conclusions: Our study demonstrated in MetS an early prothrombotic phenotype of the blood compartment reinforced by procoagulant properties of dedifferentiated and inflammatory VSMCs. Mechanisms involved (1) increased fibrinogen and impaired fibrinolysis and (2) increased saturated fatty acids responsible for additive procoagulant effects. Whether specifically targeting this hypercoagulability using direct thrombin inhibitors would improve outcome in MetS is worth investigating.
Collapse
Affiliation(s)
- Jérémy Lagrange
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1116, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Nancy, France.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Mélusine Didelot
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1116, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Nancy, France
| | - Amel Mohamadi
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1116, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Nancy, France
| | - Lucy A Walton
- Faculty of Medical and Human Sciences, Institute of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom.,Directorate of Radiography, School of Health Sciences, University of Salford, Salford, United Kingdom
| | - Saartje Bloemen
- Synapse Research Institute, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, Netherlands
| | - Bas de Laat
- Synapse Research Institute, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, Netherlands
| | - Huguette Louis
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1116, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Nancy, France
| | - Simon N Thornton
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1116, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Nancy, France
| | - Brian Derby
- School of Materials, University of Manchester, Manchester, United Kingdom
| | - Michael J Sherratt
- Faculty of Medical and Human Sciences, Institute of Inflammation and Repair, University of Manchester, Manchester, United Kingdom
| | - Bruno Fève
- Centre de Recherche Saint-Antoine Institut National de la Santé et de la Recherche Médicale-Université Pierre et Marie Curie, UMR_S 938, Paris, France.,Institut Hospitalo-Universitaire ICAN, Paris, France.,Assistance-Publique des Hôpitaux de Paris, Service d'Endocrinologie, Hôpital Saint-Antoine, Paris, France
| | - Pascal Challande
- UPMC, University of Paris, Paris, France.,Centre National de la Recherche Scientifique, UMR 7190, Paris, France
| | - Riaz Akhtar
- Centre for Materials and Structures, School of Engineering, University of Liverpool, Liverpool, United Kingdom
| | - J Kennedy Cruickshank
- Diabetes & Cardiovascular Medicine, Nutritional Sciences Division, King's College London, London, United Kingdom
| | - Patrick Lacolley
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1116, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Nancy, France.,CHRU Nancy, Vandœuvre-lès-Nancy, France
| | - Véronique Regnault
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1116, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Nancy, France.,CHRU Nancy, Vandœuvre-lès-Nancy, France
| |
Collapse
|
6
|
Peiró C, Lorenzo Ó, Carraro R, Sánchez-Ferrer CF. IL-1β Inhibition in Cardiovascular Complications Associated to Diabetes Mellitus. Front Pharmacol 2017; 8:363. [PMID: 28659798 PMCID: PMC5468794 DOI: 10.3389/fphar.2017.00363] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 05/26/2017] [Indexed: 01/15/2023] Open
Abstract
Diabetes mellitus (DM) is a chronic disease that affects nowadays millions of people worldwide. In adults, type 2 diabetes mellitus (T2DM) accounts for the majority of all diagnosed cases of diabetes. The course of the T2DM is characterized by insulin resistance and a progressive loss of β-cell mass. DM is associated with a number of related complications, among which cardiovascular complications and atherosclerosis are the main cause of morbidity and mortality in patients suffering from the disease. DM is acknowledged as a low-grade chronic inflammatory state characterized by the over-secretion of pro-inflammatory cytokines, including interleukin (IL)-1β, which reinforce inflammatory signals thus contributing to the development of complications. In this context, the pharmacological approaches to treat diabetes should not only correct hyperglycaemia, but also attenuate inflammation and prevent the development of metabolic and cardiovascular complications. Over the last years, novel biological drugs have been developed to antagonize the pathophysiological actions of IL-1β. The drugs currently used in clinical practice are anakinra, a recombinant form of the naturally occurring IL-1 receptor antagonist, the soluble decoy receptor rilonacept and the monoclonal antibodies canakinumab and gevokizumab. This review will summarize the main experimental and clinical findings obtained with pharmacological IL-1β inhibitors in the context of the cardiovascular complications of DM, and discuss the perspectives of IL-1β inhibitors as novel therapeutic tools for treating these patients.
Collapse
Affiliation(s)
- Concepción Peiró
- Department of Pharmacology, School of Medicine, Universidad Autónoma de MadridMadrid, Spain.,Instituto de Investigación Sanitaria Hospital Universitario de La Paz (IdiPAZ)Madrid, Spain
| | - Óscar Lorenzo
- Department of Medicine, School of Medicine, Universidad Autónoma de MadridMadrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez DíazMadrid, Spain
| | - Raffaele Carraro
- Department of Medicine, School of Medicine, Universidad Autónoma de MadridMadrid, Spain.,Service of Endocrinology, Hospital de La PrincesaMadrid, Spain.,Instituto de Investigación Sanitaria Hospital de La PrincesaMadrid, Spain
| | - Carlos F Sánchez-Ferrer
- Department of Pharmacology, School of Medicine, Universidad Autónoma de MadridMadrid, Spain.,Instituto de Investigación Sanitaria Hospital Universitario de La Paz (IdiPAZ)Madrid, Spain
| |
Collapse
|
7
|
Gil-Ortega M, Martín-Ramos M, Arribas SM, González MC, Aránguez I, Ruiz-Gayo M, Somoza B, Fernández-Alfonso MS. Arterial stiffness is associated with adipokine dysregulation in non-hypertensive obese mice. Vascul Pharmacol 2015; 77:38-47. [PMID: 26028606 DOI: 10.1016/j.vph.2015.05.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 05/06/2015] [Accepted: 05/25/2015] [Indexed: 01/01/2023]
Abstract
The aim of this study was to characterize alterations in vascular structure and mechanics in murine mesenteric arteries from obese non-hypertensive mice, as well as their relationship with adipokines. Four-week old C57BL/6J male mice were assigned either to a control (C, 10% kcal from fat) or a high-fat diet (HFD, 45% kcal from fat) for 32weeks. HFD animals weighed 30% more than controls (p<0.001), exhibited similar blood pressure, increased leptin, insulin and superoxide anion (O2(-)) levels, and reduced adiponectin levels and nitric oxide (NO) bioavailability. Arterial structure showed an outward remodeling with an increase in total number of both adventitial and smooth muscle cells in HFD. Moreover, HFD mice exhibited an increased arterial stiffness assessed by β-values (C=2.4±0.5 vs HFD=5.3±0.8; p<0.05) and aortic pulse wave velocity (PWV, C=3.4±0.1 vs HFD=3.9±0.1; p<0.05). β-Values and PWV positively correlated with leptin, insulin or O2(-) levels, whereas they negatively correlated with adiponectin levels and NO bioavailability (p<0.01). A reduction in fenestrae number together with an increase in type-I collagen amount (p<0.05) were observed in HFD. These data demonstrate that HFD accounts for the development of vascular remodeling and arterial stiffness associated with adipokine dysregulation and oxidative stress, independently of hypertension development.
Collapse
Affiliation(s)
- Marta Gil-Ortega
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad CEU-San Pablo, Madrid, Spain
| | - Miriam Martín-Ramos
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad CEU-San Pablo, Madrid, Spain
| | - Silvia M Arribas
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - M Carmen González
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Isabel Aránguez
- Departamento de Bioquímica, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
| | - Mariano Ruiz-Gayo
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad CEU-San Pablo, Madrid, Spain
| | - Beatriz Somoza
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad CEU-San Pablo, Madrid, Spain.
| | - María S Fernández-Alfonso
- Instituto Pluridisciplinar and Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
| |
Collapse
|
8
|
Qiu S, Mintz JD, Salet CD, Han W, Giannis A, Chen F, Yu Y, Su Y, Fulton DJ, Stepp DW. Increasing muscle mass improves vascular function in obese (db/db) mice. J Am Heart Assoc 2014; 3:e000854. [PMID: 24965025 PMCID: PMC4309080 DOI: 10.1161/jaha.114.000854] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background A sedentary lifestyle is an independent risk factor for cardiovascular disease and exercise has been shown to ameliorate this risk. Inactivity is associated with a loss of muscle mass, which is also reversed with isometric exercise training. The relationship between muscle mass and vascular function is poorly defined. The aims of the current study were to determine whether increasing muscle mass by genetic deletion of myostatin, a negative regulator of muscle growth, can influence vascular function in mesenteric arteries from obese db/db mice. Methods and Results Myostatin expression was elevated in skeletal muscle of obese mice and associated with reduced muscle mass (30% to 50%). Myostatin deletion increased muscle mass in lean (40% to 60%) and obese (80% to 115%) mice through increased muscle fiber size (P<0.05). Myostatin deletion decreased adipose tissue in lean mice, but not obese mice. Markers of insulin resistance and glucose tolerance were improved in obese myostatin knockout mice. Obese mice demonstrated an impaired endothelial vasodilation, compared to lean mice. This impairment was improved by superoxide dismutase mimic Tempol. Deletion of myostatin improved endothelial vasodilation in mesenteric arteries in obese, but not in lean, mice. This improvement was blunted by nitric oxide (NO) synthase inhibitor l‐NG‐nitroarginine methyl ester (l‐NAME). Prostacyclin (PGI2)‐ and endothelium‐derived hyperpolarizing factor (EDHF)‐mediated vasodilation were preserved in obese mice and unaffected by myostatin deletion. Reactive oxygen species) was elevated in the mesenteric endothelium of obese mice and down‐regulated by deletion of myostatin in obese mice. Impaired vasodilation in obese mice was improved by NADPH oxidase inhibitor (GKT136901). Treatment with sepiapterin, which increases levels of tetrahydrobiopterin, improved vasodilation in obese mice, an improvement blocked by l‐NAME. Conclusions Increasing muscle mass by genetic deletion of myostatin improves NO‐, but not PGI2‐ or EDHF‐mediated vasodilation in obese mice; this vasodilation improvement is mediated by down‐regulation of superoxide.
Collapse
Affiliation(s)
- Shuiqing Qiu
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.)
| | - James D Mintz
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.)
| | - Christina D Salet
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.)
| | - Weihong Han
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.) Department of Physiology, Georgia Regents University, Augusta, GA, Germany (W.H., Y.S.)
| | - Athanassios Giannis
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.) Institute of Organic Chemistry, University of Leipzig, Leipzig, Germany (A.G.)
| | - Feng Chen
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.)
| | - Yanfang Yu
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.)
| | - Yunchao Su
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.) Department of Physiology, Georgia Regents University, Augusta, GA, Germany (W.H., Y.S.)
| | - David J Fulton
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.)
| | - David W Stepp
- Vascular Biology Center and Department of Physiology, Georgia Regents University, Augusta, GA, Germany (S.Q., J.D.M., C.D.S., W.H., A.G., F.C., Y.Y., Y.S., D.J.F., D.W.S.)
| |
Collapse
|
9
|
Tucsek Z, Toth P, Tarantini S, Sosnowska D, Gautam T, Warrington JP, Giles CB, Wren JD, Koller A, Ballabh P, Sonntag WE, Ungvari Z, Csiszar A. Aging exacerbates obesity-induced cerebromicrovascular rarefaction, neurovascular uncoupling, and cognitive decline in mice. J Gerontol A Biol Sci Med Sci 2014; 69:1339-52. [PMID: 24895269 DOI: 10.1093/gerona/glu080] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Epidemiological studies show that obesity has deleterious effects on the brain and cognitive function in the elderly population. However, the specific mechanisms through which aging and obesity interact to promote cognitive decline remain unclear. To test the hypothesis that aging exacerbates obesity-induced cerebromicrovascular impairment, we compared young (7 months) and aged (24 months) high-fat diet-fed obese C57BL/6 mice. We found that aging exacerbates the obesity-induced decline in microvascular density both in the hippocampus and in the cortex. The extent of hippocampal microvascular rarefaction and the extent of impairment of hippocampal-dependent cognitive function positively correlate. Aging exacerbates obesity-induced loss of pericyte coverage on cerebral microvessels and alters hippocampal angiogenic gene expression signature, which likely contributes to microvascular rarefaction. Aging also exacerbates obesity-induced oxidative stress and induction of NADPH oxidase and impairs cerebral blood flow responses to whisker stimulation. Collectively, obesity exerts deleterious cerebrovascular effects in aged mice, promoting cerebromicrovascular rarefaction and neurovascular uncoupling. The morphological and functional impairment of the cerebral microvasculature in association with increased blood-brain barrier disruption and neuroinflammation (Tucsek Z, Toth P, Sosnowsk D, et al. Obesity in aging exacerbates blood-brain barrier disruption, neuroinflammation and oxidative stress in the mouse hippocampus: effects on expression of genes involved in beta-amyloid generation and Alzheimer's disease. J Gerontol Biol Med Sci. 2013. In press, PMID: 24269929) likely contribute to obesity-induced cognitive decline in aging.
Collapse
Affiliation(s)
- Zsuzsanna Tucsek
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center.
| | - Peter Toth
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center.
| | - Stefano Tarantini
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Danuta Sosnowska
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Tripti Gautam
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Junie P Warrington
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center. Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson
| | - Cory B Giles
- Oklahoma Medical Research Foundation, Arthritis and Clinical Immunology Research Program
| | - Jonathan D Wren
- Oklahoma Medical Research Foundation, Arthritis and Clinical Immunology Research Program
| | - Akos Koller
- Department of Pathophysiology and Gerontology, Medical School and Szentágothai Research Center, University of Pecs, Hungary
| | - Praveen Ballabh
- Departments of Pediatrics, Anatomy and Cell Biology, New York Medical College-Westchester Medical Center, Valhalla
| | - William E Sonntag
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center
| | - Zoltan Ungvari
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center. Department of Pathophysiology and Gerontology, Medical School and Szentágothai Research Center, University of Pecs, Hungary. Department of Physiology, University of Oklahoma Health Sciences Center.
| | - Anna Csiszar
- Donald W. Reynolds Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center. Department of Pathophysiology and Gerontology, Medical School and Szentágothai Research Center, University of Pecs, Hungary. Department of Physiology, University of Oklahoma Health Sciences Center
| |
Collapse
|
10
|
Evaluating the effects and safety of intravenous lipid emulsion on haloperidol-induced neurotoxicity in rabbit. BIOMED RESEARCH INTERNATIONAL 2014; 2014:949262. [PMID: 24971362 PMCID: PMC4058127 DOI: 10.1155/2014/949262] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 04/24/2014] [Accepted: 04/24/2014] [Indexed: 12/16/2022]
Abstract
There are many reports on the effect of intravenous lipid emulsion (ILE) as an antidote in drugs related toxicities. We determined the effects of ILE on neurotoxicity of haloperidol (HA), a highly lipophilic antipsychotic, as a model of antipsychotics poisoning. We used six groups of five male rabbits. Two groups received distilled water intravenously followed by infusions of either 18 mL/kg of normal saline or ILE 20%, after 30 minutes. The third group received 18 mL/kg of normal saline after HA (2.6 mg/kg) administration. The three other groups received ILE 20% solution (6, 12, and 18 mL/kg) following HA injection. Catalepsy scores, temperature, pupil size, and mortality rate were measured at 0, 0.5, 1, 2, 3, 4, 8, and 24 hours after HA administration began. Blood and tissue samples were taken from all animals at 24 hours or at death time for biochemical, cell count, and pathological studies. ILE reversed cataleptic scores, miotic pupils, and hypothermia of HA intoxication much faster than normal saline (P < 0.001). Biochemical complications and mortality rate of the animals were significantly higher in the HA + 18 mL/Kg ILE group. ILE reversed sings of HA neurotoxicity; however, synergistic effect of high dose of ILE and HA increased complications and mortality.
Collapse
|
11
|
Youcef G, Olivier A, L'Huillier CPJ, Labat C, Fay R, Tabcheh L, Toupance S, Rodriguez-Guéant RM, Bergerot D, Jaisser F, Lacolley P, Zannad F, Laurent Vallar, Pizard A. Simultaneous characterization of metabolic, cardiac, vascular and renal phenotypes of lean and obese SHHF rats. PLoS One 2014; 9:e96452. [PMID: 24831821 PMCID: PMC4022510 DOI: 10.1371/journal.pone.0096452] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Accepted: 04/07/2014] [Indexed: 12/18/2022] Open
Abstract
Individuals with metabolic syndrome (MetS) are prone to develop heart failure (HF). However, the deleterious effects of MetS on the continuum of events leading to cardiac remodeling and subsequently to HF are not fully understood. This study characterized simultaneously MetS and cardiac, vascular and renal phenotypes in aging Spontaneously Hypertensive Heart Failure lean (SHHF(+/?) regrouping (+/+) and (+/cp) rats) and obese (SHHF(cp/cp), "cp" defective mutant allele of the leptin receptor gene) rats. We aimed to refine the milestones and their onset during the progression from MetS to HF in this experimental model. We found that SHHF(cp/cp )but not SHHF(+/?) rats developed dyslipidemia, as early as 1.5 months of age. This early alteration in the lipidic profile was detectable concomitantly to impaired renal function (polyuria, proteinuria but no glycosuria) and reduced carotid distensibility as compared to SHHF(+/?) rats. By 3 months of age SHHFcp/cp animals developed severe obesity associated with dislipidemia and hypertension defining the onset of MetS. From 6 months of age, SHHF(+/?) rats developed concentric left ventricular hypertrophy (LVH) while SHHF(cp/cp) rats developed eccentric LVH apparent from progressive dilation of the LV dimensions. By 14 months of age only SHHF(cp/cp) rats showed significantly higher central systolic blood pressure and a reduced ejection fraction resulting in systolic dysfunction as compared to SHHF(+/?). In summary, the metabolic and hemodynamic mechanisms participating in the faster decline of cardiac functions in SHHF(cp/cp) rats are established long before their physiological consequences are detectable. Our results suggest that the molecular mechanisms triggered within the first three months after birth of SHHF(cp/cp) rats should be targeted preferentially by therapeutic interventions in order to mitigate the later HF development.
Collapse
Affiliation(s)
- Gina Youcef
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; Genomics Research Unit, Centre de Recherche Public de la Santé, Strassen, Luxembourg
| | - Arnaud Olivier
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Clément P J L'Huillier
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France
| | - Carlos Labat
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France
| | - Renaud Fay
- CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Lina Tabcheh
- Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; UMR 7365 CNRS, Vandoeuvre-lès-Nancy, France
| | - Simon Toupance
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Rosa-Maria Rodriguez-Guéant
- Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; U954 Inserm, Vandoeuvre-lès-Nancy, France
| | | | - Frédéric Jaisser
- CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Patrick Lacolley
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France
| | - Faiez Zannad
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Laurent Vallar
- Genomics Research Unit, Centre de Recherche Public de la Santé, Strassen, Luxembourg
| | - Anne Pizard
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| |
Collapse
|
12
|
Moshiri M, Vahabzadeh M, Mohammadpour AH, Hosseinzadeh H. Evaluation of intravenous lipid emulsion on haloperidol-induced hypotension in rabbits. Toxicol Ind Health 2014; 32:945-52. [PMID: 24444695 DOI: 10.1177/0748233713518601] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
There are many reports on the effects of intravenous lipid emulsion (ILE) as an antidote in drug toxicity. Haloperidol (HAL) is a butyrophenone antipsychotic agent which is highly lipophilic. Hypotension is an important adverse effect of HAL administration and overdose. The aim of this study was to investigate the beneficial hemodynamic effects of ILE on acute HAL poisoning. We used six groups of five male rabbits. Two groups received aseptic distilled water intravenously followed by infusion of 18.6 ml/kg normal saline, as negative control group, or ILE 20% after 0.5 h. The third group received 18.6 ml/kg normal saline after HAL infusion (2.6 mg/kg). The other three groups received ILE 20% solution (6, 12, and 18.6 ml/kg) following HAL (2.6 mg/kg) administration. We measured blood pressure at 0, 0.5, 1, 2, 3, 4, 8, and 24 h after starting HAL administration, from left forelimb using a noninvasive method that was carried out automatically with a neonatal intensive care unit bedside monitor. ILE 20% at the dose of 18 ml/kg could return the reduced mean arterial pressure and diastolic blood pressure sooner than the other doses and normal saline. In conclusion, ILE could reverse HAL-induced hypotension same as the other lipophilic drugs. However, the clinical use of ILE for this purpose needs more evaluation to determine its exact indication and safety.
Collapse
Affiliation(s)
- Mohammad Moshiri
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
| | - Maryam Vahabzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
| | - Amir Hooshang Mohammadpour
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
| |
Collapse
|
13
|
Maskali F, Poussier S, Louis H, Boutley H, Lhuillier M, Thornton SN, Karcher G, Lacolley P, Marie PY. Assessment of the early stage of cardiac remodeling of spontaneously hypertensive heart failure rats using the quantitative 3-dimensional analysis provided by acipimox-enhanced FDG-PET. Int J Cardiovasc Imaging 2014; 30:449-56. [DOI: 10.1007/s10554-013-0350-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 12/06/2013] [Indexed: 11/28/2022]
|
14
|
Blanton RM, Takimoto E, Aronovitz M, Thoonen R, Kass DA, Karas RH, Mendelsohn ME. Mutation of the protein kinase I alpha leucine zipper domain produces hypertension and progressive left ventricular hypertrophy: a novel mouse model of age-dependent hypertensive heart disease. J Gerontol A Biol Sci Med Sci 2013; 68:1351-5. [PMID: 23657971 DOI: 10.1093/gerona/glt042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Hypertensive heart disease causes significant mortality in older patients, yet there is an incomplete understanding of molecular mechanisms that regulate age-dependent hypertensive left ventricular hypertrophy (LVH). Therefore, we tested the hypothesis that the cGMP-dependent protein kinase G I alpha (PKGIα) attenuates hypertensive LVH by evaluating the cardiac phenotype in mice with selective mutations of the PKGIα leucine zipper domain. These leucine zipper mutant (LZM) mice develop basal hypertension. Compared with wild-type controls, 8-month-old adult LZM mice developed increased left ventricular end-diastolic pressure but without frank LVH. In advanced age (15 months), the LZM mice developed overt pathological LVH. These findings reveal a role of PKGIα in normally attenuating hypertensive LVH. Therefore, mutation of the PKGIα LZ domain produces a clinically relevant model for hypertensive heart disease of aging.
Collapse
Affiliation(s)
- Robert M Blanton
- Tufts Medical Center, Molecular Cardiology Research Institute, 800 Washington Street, Box 80, Boston, MA 02111.
| | | | | | | | | | | | | |
Collapse
|
15
|
Bailey-Downs LC, Tucsek Z, Toth P, Sosnowska D, Gautam T, Sonntag WE, Csiszar A, Ungvari Z. Aging exacerbates obesity-induced oxidative stress and inflammation in perivascular adipose tissue in mice: a paracrine mechanism contributing to vascular redox dysregulation and inflammation. J Gerontol A Biol Sci Med Sci 2012; 68:780-92. [PMID: 23213032 DOI: 10.1093/gerona/gls238] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Obesity in the elderly individuals is increasing at alarming rates and there is evidence suggesting that elderly individuals are more vulnerable to the deleterious cardiovascular effects of obesity than younger individuals. However, the specific mechanisms through which aging and obesity interact to promote the development of cardiovascular disease remain unclear. The present study was designed to test the hypothesis that aging exacerbates obesity-induced inflammation in perivascular adipose tissue, which contributes to increased vascular oxidative stress and inflammation in a paracrine manner. To test this hypothesis, we assessed changes in the secretome, reactive oxygen species production, and macrophage infiltration in periaortic adipose tissue of young (7 month old) and aged (24 month old) high-fat diet-fed obese C57BL/6 mice. High-fat diet-induced vascular reactive oxygen species generation significantly increased in aged mice, which was associated with exacerbation of endothelial dysfunction and vascular inflammation. In young animals, high-fat diet-induced obesity promoted oxidative stress in the perivascular adipose tissue, which was associated with a marked proinflammatory shift in the profile of secreted cytokines and chemokines. Aging exacerbated obesity-induced oxidative stress and inflammation and significantly increased macrophage infiltration in periaortic adipose tissue. Using cultured arteries isolated from young control mice, we found that inflammatory factors secreted from the perivascular fat tissue of obese aged mice promote significant prooxidative and proinflammatory phenotypic alterations in the vascular wall, mimicking the aging phenotype. Overall, our findings support an important role for localized perivascular adipose tissue inflammation in exacerbation of vascular oxidative stress and inflammation in aging, an effect that likely enhances the risk for development of cardiovascular diseases from obesity in the elderly individuals.
Collapse
Affiliation(s)
- Lora C Bailey-Downs
- Reynolds Oklahoma Center on Aging, Department of Geriatric Medicine, University of Oklahoma HSC, Oklahoma City, OK 73104, USA
| | | | | | | | | | | | | | | |
Collapse
|