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Endothelial function diet

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https://www.readbyqxmd.com/read/28546217/increased-hepatic-expression-of-endothelial-lipase-inhibits-cholesterol-diet-induced-hypercholesterolemia-and-atherosclerosis-in-transgenic-rabbits
#1
Chuan Wang, Kazutoshi Nishijima, Shuji Kitajima, Manabu Niimi, Haizhao Yan, Yajie Chen, Bo Ning, Fumikazu Matsuhisa, Enqi Liu, Jifeng Zhang, Y Eugene Chen, Jianglin Fan
OBJECTIVE: Endothelial lipase (EL) is a key determinant in plasma high-density lipoprotein-cholesterol. However, functional roles of EL on the development of atherosclerosis have not been clarified. We investigated whether hepatic expression of EL affects plasma lipoprotein metabolism and cholesterol diet-induced atherosclerosis. APPROACH AND RESULTS: We generated transgenic (Tg) rabbits expressing the human EL gene in the liver and then examined the effects of EL expression on plasma lipids and lipoproteins and compared the susceptibility of Tg rabbits with cholesterol diet-induced atherosclerosis with non-Tg littermates...
May 25, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28541356/food-and-plant-bioactives-for-reducing-cardiometabolic-disease-risk-an-evidence-based-approach
#2
REVIEW
Arrigo F G Cicero, Federica Fogacci, Alessandro Colletti
Cardiovascular diseases (CVDs) are one of the major causes of mortality and disability in Western countries. Prevention is known to be the cornerstone to lessen the incidence of CVDs and also to reduce the economic burden of both the citizen and the healthcare system. "Interventional medicine" certainly puts lifestyle modification as the first therapeutic step, including a healthy diet and physical activity. Secondly, a large body of research individuated a number of food and plant bioactives, which are potentially efficacious in preventing and reducing some highly prevalent CV risk factors, such as hypercholesterolemia, hypertension, vascular inflammation and vascular compliance...
May 25, 2017: Food & Function
https://www.readbyqxmd.com/read/28539257/propranolol-treatment-lowers-blood-pressure-reduces-vascular-inflammatory-markers-and-improves-endothelial-function-in-obese-mice
#3
Nathalia da Silva Franco, Camila Lubaczeuski, Daniele M Guizoni, Jamaira A Victorio, Junia C Santos-Silva, Patricia C Brum, Everardo M Carneiro, Ana P Davel
Obesity-associated hypertension is accompanied by a number of cardiovascular risk factors including vascular insulin resistance (IR) and higher sympathetic nervous activity. Therefore, autonomic blockade was demonstrated to reverse hypertension, endothelial dysfunction and IR in obese individuals. We hypothesized that β-AR blockade with propranolol would restore endothelial function and vascular insulin signaling in obesity, associated with an anti-inflammatory effect. Body weight, systolic blood pressure (SBP), plasma biochemical parameters and aortic endothelial function were analyzed in mice fed standard diet (control group) or a high fat diet (HFD) that were treated with vehicle (water) or propranolol (10mg/kg/day) for 8 weeks...
May 21, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28535009/microrna-let-7g-alleviates-atherosclerosis-via-the-targeting-of-lox-1-in-vitro-and-in-vivo
#4
Mingxin Liu, Guizhou Tao, Qifeng Liu, Kun Liu, Xinchun Yang
Atherosclerosis is a chronic arterial disease and the leading cause of stroke and myocardial infarction. Micro-RNAs (miRNAs or miRs) have been reported to act as essential modulators during the progression of atherosclerosis. Although miR-let-7g has been demonstrated to contribute to maintaining endothelial function and vascular homeostasis, it is not known whether miR-let-7g exerts a therapeutic effect on experimental atherosclerosis. The aim of this study was to investigate the effects of miR-let-7g on atherosclerosis in vivo and in vitro and to explore its underlying mechanisms...
May 18, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28528109/the-hypoglycemic-effects-of-guava-leaf-psidium-guajava-l-extract-are-associated-with-improving-endothelial-dysfunction-in-mice-with-diet-induced-obesity
#5
Elixabet Díaz-de-Cerio, Alba Rodríguez-Nogales, Francesca Algieri, Miguel Romero, Vito Verardo, Antonio Segura-Carretero, Juan Duarte, Julio Galvez
Obesity is associated with a low-grade inflammatory status that affects vascular function. Previous studies have reported the beneficial effects of Psidium guajava L. (guava) on diabetes. Here we evaluate the how guava leaf extract at the dose of 5 mg/kg, affects vascular dysfunction in obese mice fed a high-fat diet for 7 weeks. Extract intake did not alter weight over time, although it reduced glycemia and insulin resistance, improving the serum lipid profile in obese mice. Additionally, guava leaf extract reversed the endothelial dysfunction found in obese mice in terms of endothelium- and NO (nitric oxide)-dependent vasodilatation induced by acetylcholine in aortic rings...
June 2017: Food Research International
https://www.readbyqxmd.com/read/28501983/understanding-the-two-faces-of-low-salt-intake
#6
REVIEW
Branko Braam, Xiaohua Huang, William A Cupples, Shereen M Hamza
Fierce debate has developed whether low-sodium intake, like high-sodium intake, could be associated with adverse outcome. The debate originates in earlier epidemiological studies associating high-sodium intake with high blood pressure and more recent studies demonstrating a higher cardiovascular event rate with both low- and high-sodium intake. This brings into question whether we entirely understand the consequences of high- and (very) low-sodium intake for the systemic hemodynamics, the kidney function, the vascular wall, the immune system, and the brain...
June 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28499911/aging-associated-metabolic-disorder-induces-nox2-activation-and-oxidative-damage-of-endothelial-function
#7
Lampson M Fan, Sarah Cahill-Smith, Li Geng, Junjie Du, Gavin Brooks, Jian-Mei Li
Oxidative stress attributable to the activation of a Nox2-containing NADPH oxidase is involved in the development of vascular diseases and in aging. However, the mechanism of Nox2 activation in normal aging remains unclear. In this study, we used age-matched wild-type (WT) and Nox2 knockout (KO) mice at 3-4 months (young); 11-12 months (middle-aged) and 21-22 months (aging) to investigate age-related metabolic disorders, Nox2 activation and endothelial dysfunction. Compared to young mice, middle-aged and aging WT mice had significant hyperglycaemia, hyperinsulinaemia, increased systemic oxidative stress and higher blood pressure...
May 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28488397/dietary-sodium-intake-relates-to-vascular-health-in-children-with-type-1-diabetes
#8
Jemma Anderson, Jennifer J Couper, Sarah Toome, Christine Mpundu-Kaambwa, Lynne C Giles, Roger Gent, Brian Coppin, Alexia S Peña
BACKGROUND AND OBJECTIVE: Children with type 1 diabetes (T1D) have vascular dysfunction and frequently struggle to adhere to dietary recommendations. Limited data exist for the vascular consequences of poor diet quality in children. We aimed to evaluate the association between dietary components and vascular function in children with T1D. METHODS: Cross-sectional study including 90 children (13.6 [3.5] years, 41 boys) with T1D. They had evaluation of dietary micro and macronutrients (Australian Child and Adolescent Eating Survey), vascular endothelial and smooth muscle function (flow-mediated dilatation and glyceryl trinitrate mediated dilatation [GTN], respectively), clinical and biochemical variables...
May 10, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28487392/epha2-expression-regulates-inflammation-and-fibroproliferative-remodeling-in-atherosclerosis
#9
Alexandra C Finney, Steven D Funk, Jonette Green, Arif Yurdagul, Mohammad A Rana, Rebecca Pistorius, Miriam Henry, Andrew D Yurochko, Christopher B Pattillo, James G Traylor, Jin Chen, Matthew D Woolard, Christopher G Kevil, A Wayne Orr
Background -Atherosclerotic plaque formation results from chronic inflammation and fibroproliferative remodeling in the vascular wall. We previously demonstrated that both human and mouse atherosclerotic plaques show elevated expression of EphA2, a guidance molecule involved in cell-cell interactions and tumorigenesis. Methods -Here, we assessed EphA2's role in atherosclerosis by deleting EphA2 in a mouse model of atherosclerosis (Apoe(-/-)) and by assessing EphA2 function in multiple vascular cell culture models...
May 9, 2017: Circulation
https://www.readbyqxmd.com/read/28487316/atheroma-susceptible-to-thrombosis-exhibit-impaired-endothelial-permeability-in-vivo-as-assessed-by-nanoparticle-based-fluorescence-molecular-imaging
#10
Ashley F Stein-Merlob, Tetsuya Hara, Jason R McCarthy, Adam Mauskapf, James A Hamilton, Vasilis Ntziachristos, Peter Libby, Farouc A Jaffer
BACKGROUND: The role of local alterations in endothelial functional integrity in atherosclerosis remains incompletely understood. This study used nanoparticle-enhanced optical molecular imaging to probe in vivo mechanisms involving impaired endothelial barrier function in experimental atherothrombosis. METHODS AND RESULTS: Atherosclerosis was induced in rabbits (n=31) using aortic balloon injury and high-cholesterol diet. Rabbits received ultrasmall superparamagnetic iron oxide nanoparticles (CLIO) derivatized with a near-infrared fluorophore (CyAm7) 24 hours before near-infrared fluorescence imaging...
May 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28466012/obesity-induces-artery-specific-alterations-evaluation-of-vascular-function-and-inflammatory-and-smooth-muscle-phenotypic-markers
#11
Antonio Garcia Soares, Maria Helena Catelli de Carvalho, Eliana Akamine
Vascular alterations are expected to occur in obese individuals but the impact of obesity could be different depending on the artery type. We aimed to evaluate the obesity effects on the relaxing and contractile responses and inflammatory and smooth muscle (SM) phenotypic markers in two vascular beds. Obesity was induced in C57Bl/6 mice by 16-week high-fat diet and vascular reactivity, mRNA expression of inflammatory and SM phenotypic markers, and collagen deposition were evaluated in small mesenteric arteries (SMA) and thoracic aorta (TA)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28445811/liraglutide-a-glp-1-receptor-agonist-inhibits-vascular-smooth-muscle-cell-proliferation-by-enhancing-amp-activated-protein-kinase-and-cell-cycle-regulation-and-delays-atherosclerosis-in-apoe-deficient-mice
#12
Teruo Jojima, Kohsuke Uchida, Kazumi Akimoto, Takanori Tomotsune, Kazunori Yanagi, Toshie Iijima, Kunihiro Suzuki, Kikuo Kasai, Yoshimasa Aso
BACKGROUND AND AIMS: Several studies have demonstrated that both native glucagon-like peptide-1 (GLP-1) and GLP-1 receptor agonists suppress the progression of atherosclerosis in animal models. METHODS: We investigated whether liraglutide, a GLP-1 analogue, could prevent the development of atherosclerosis in apolipoprotein E knockout mice (ApoE(-/-)) on a high-fat diet. We also examined the influence of liraglutide on angiotensin II-induced proliferation of rat vascular smooth muscle cells (VSMCs) via enhancement of AMP-activated protein kinase (AMPK) signaling and regulation of cell cycle progression...
April 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28430983/absence-of-endothelial-er%C3%AE-results-in-arterial-remodeling-and-decreased-stiffness-in-western-diet-fed-male-mice
#13
Camila Manrique-Acevedo, Francisco I Ramirez-Perez, Jaume Padilla, Victoria J Vieira-Potter, Annayya R Aroor, Brady J Barron, Dongqing Chen, Dominic Haertling, Cory Declue, James R Sowers, Luis A Martinez-Lemus
The role of estrogen receptor alpha (ERα) signaling in the vasculature of females has been described under different experimental conditions and our group recently reported that lack of endothelial 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 over-nutrition and insulin resistance, augmented arterial stiffness, endothelial dysfunction and arterial remodeling contribute to the development of cardiovascular disease...
April 18, 2017: Endocrinology
https://www.readbyqxmd.com/read/28424187/a-mediterranean-diet-lowers-blood-pressure-and-improves-endothelial-function-results-from-the-medley-randomized-intervention-trial
#14
Courtney R Davis, Jonathan M Hodgson, Richard Woodman, Janet Bryan, Carlene Wilson, Karen J Murphy
Background: The consumption of a Mediterranean diet (MedDiet) is associated with a lower risk of cardiovascular disease. However, its impact on blood pressure and endothelial function is not clear.Objective: We sought to determine the effects of adhering to the consumption of a MedDiet for 6 mo on blood pressure and endothelial function in older, healthy Australians.Design: A total of 166 men and women aged >64 y were allocated via minimization to consume either a MedDiet (n = 85) or their habitual diet (HabDiet; control: n = 81) for 6 mo...
April 19, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28420164/the-angiogenesis-inhibitor-als-l1023-from-lemon-balm-leaves-attenuates-high-fat-diet-induced-nonalcoholic-fatty-liver-disease-through-regulating-the-visceral-adipose-tissue-function
#15
Jeongjun Kim, Haerim Lee, Jonghoon Lim, Jaeho Oh, Soon Shik Shin, Michung Yoon
Similar to neoplastic tissues, growth and development of adipose tissue are thought to be angiogenesis-dependent. Since visceral adipose tissue (VAT) is associated with development and progression of nonalcoholic fatty liver disease (NAFLD), we hypothesized that angiogenesis inhibition would attenuate obesity-induced NAFLD. We fed C57BL/6J mice a low-fat diet (LFD, chow 10% kcal fat), a high-fat diet (HFD, 45% kcal fat) or HFD supplemented with the lemon-balm extract ALS-L1023 (HFD-ALS) for 15 weeks. ALS-L1023 reduced endothelial cell-tube formation in vitro...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28399917/metformin-and-sulodexide-restore-cardiac-microvascular-perfusion-capacity-in-diet-induced-obese-rats
#16
Judith van Haare, M Eline Kooi, Jurgen W G E van Teeffelen, Hans Vink, Jos Slenter, Hanneke Cobelens, Gustav J Strijkers, Dennis Koehn, Mark J Post, Marc van Bilsen
BACKGROUND: Disturbances in coronary microcirculatory function, such as the endothelial glycocalyx, are early hallmarks in the development of obesity and insulin resistance. Accordingly, in the present study myocardial microcirculatory perfusion during rest and stress was assessed following metformin or sulodexide therapy in a rat model of diet-induced obesity. Additionally, the effect of degradation of the glycocalyx on myocardial perfusion was assessed in chow-fed rats. METHODS: Rats were fed a high fat diet (HFD) for 8 weeks and were divided into a group without therapy, and groups that received the anti-diabetic drug metformin or the glycocalyx-stabilizing drug sulodexide in their drinking water during the last 4 weeks of the feeding period...
April 11, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28393867/endothelial-lrp1-regulates-metabolic-responses-by-acting-as-a-co-activator-of-ppar%C3%AE
#17
Hua Mao, Pamela Lockyer, Luge Li, Christie M Ballantyne, Cam Patterson, Liang Xie, Xinchun Pi
Low-density lipoprotein receptor-related protein 1 (LRP1) regulates lipid and glucose metabolism in liver and adipose tissue. It is also involved in central nervous system regulation of food intake and leptin signalling. Here we demonstrate that endothelial Lrp1 regulates systemic energy homeostasis. Mice with endothelial-specific Lrp1 deletion display improved glucose sensitivity and lipid profiles combined with increased oxygen consumption during high-fat-diet-induced obesity. We show that the intracellular domain of Lrp1 interacts with the nuclear receptor Pparγ, a central regulator of lipid and glucose metabolism, acting as its transcriptional co-activator in endothelial cells...
April 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28391290/role-of-nitric-oxide-synthase-on-blood-pressure-regulation-and-vascular-function-in-pregnant-rats-on-a-high-fat-diet
#18
Ana C Palei, Frank T Spradley, Joey P Granger
BACKGROUND: While obesity is a leading risk factor for preeclampsia, the mechanisms whereby obese women are more susceptible to pregnancy-induced hypertension are unclear. As high-fat diet (HFD) is an important contributor to the development of obesity, we tested the hypothesis that pregnant rats on HFD have hypertension and endothelial dysfunction due to reduced nitric oxide synthase (NOS). METHODS: Twelve-week-old Sprague-Dawley female rats were fed normal diet (ND, 13% fat kcal) or HFD (40% fat kcal) for 9 weeks...
March 1, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28382387/high-soluble-endoglin-levels-do-not-induce-changes-in-structural-parameters-of-mouse-heart
#19
Jana Rathouska, Petra Fikrova, Alena Mrkvicova, Katerina Blazickova, Michala Varejckova, Eva Dolezelova, Ivana Nemeckova, Barbora Vitverova, Lenka Peslova, Eunate Gallardo-Vara, Miguel Pericacho, Petr Nachtigal
A soluble form of endoglin (sEng) released into the circulation was suggested to be a direct inducer of endothelial dysfunction, inflammation and contributed to the development of hypertension by interfering with TGF-β signaling in cardiovascular pathologies. In the present study, we assessed the hypothesis that high sEng level-induced hypertension via a possible sEng interference with TGF-β signaling pathways may result in inflammatory, structural or fibrotic changes in hearts of Sol-Eng+ mice (mice with high levels of soluble endoglin) fed either chow or high-fat diet...
April 5, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28377388/targeting-the-gut-microbiota-with-inulin-type-fructans-preclinical-demonstration-of-a-novel-approach-in-the-management-of-endothelial-dysfunction
#20
Emilie Catry, Laure B Bindels, Anne Tailleux, Sophie Lestavel, Audrey M Neyrinck, Jean-François Goossens, Irina Lobysheva, Hubert Plovier, Ahmed Essaghir, Jean-Baptiste Demoulin, Caroline Bouzin, Barbara D Pachikian, Patrice D Cani, Bart Staels, Chantal Dessy, Nathalie M Delzenne
OBJECTIVE: To investigate the beneficial role of prebiotics on endothelial dysfunction, an early key marker of cardiovascular diseases, in an original mouse model linking steatosis and endothelial dysfunction. DESIGN: We examined the contribution of the gut microbiota to vascular dysfunction observed in apolipoprotein E knockout (Apoe(-/-)) mice fed an n-3 polyunsaturated fatty acid (PUFA)-depleted diet for 12 weeks with or without inulin-type fructans (ITFs) supplementation for the last 15 days...
April 4, 2017: Gut
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