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Endothelial function diet

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https://www.readbyqxmd.com/read/29230001/diacylglycerol-triggers-rim101-pathway-dependent-necrosis-in-yeast-a-model-for-lipotoxicity
#1
Patrick Rockenfeller, Martin Smolnig, Jutta Diessl, Mina Bashir, Vera Schmiedhofer, Oskar Knittelfelder, Julia Ring, Joakim Franz, Ines Foessl, Muhammad J Khan, René Rost, Wolfgang F Graier, Guido Kroemer, Andreas Zimmermann, Didac Carmona-Gutierrez, Tobias Eisenberg, Sabrina Büttner, Stephan J Sigrist, Ronald P Kühnlein, Sepp D Kohlwein, Campbell W Gourlay, Frank Madeo
The loss of lipid homeostasis can lead to lipid overload and is associated with a variety of disease states. However, little is known as to how the disruption of lipid regulation or lipid overload affects cell survival. In this study we investigated how excess diacylglycerol (DG), a cardinal metabolite suspected to mediate lipotoxicity, compromises the survival of yeast cells. We reveal that increased DG achieved by either genetic manipulation or pharmacological administration of 1,2-dioctanoyl-sn-glycerol (DOG) triggers necrotic cell death...
December 11, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29229555/reduced-cerebrovascular-reactivity-and-increased-resting-cerebral-perfusion-in-rats-exposed-to-a-cafeteria-diet
#2
Mariana Gomez-Smith, Rafal Janik, Evelyn M Lake, Lynsie A M Thomason, Conner Adams, Matthew S Jeffers, Bojana Stefanovic, Dale Corbett
To better understand the effects of a diet high in fat, sugar, and sodium on cerebrovascular function, Sprague Dawley rats were chronically exposed to a Cafeteria diet. Resting cerebral perfusion and cerebrovascular reactivity were quantified using continuous arterial spin labeling (CASL) magnetic resonance imaging (MRI). In addition, structural changes to the cerebrovasculature and susceptibility to ischemic lesion were examined. Compared to control animals fed standard chow (SD), Cafeteria diet (CAF) rats exhibited increased resting brain perfusion in the hippocampus and reduced cerebrovascular reactivity in response to 10% inspired CO2 challenges in both the hippocampus and the neocortex...
December 8, 2017: Neuroscience
https://www.readbyqxmd.com/read/29225119/d-chiro-inositol-enriched-fagopyrum-tataricum-l-gaench-extract-alleviates-mitochondrial-malfunction-and-inhibits-er-stress-jnk-associated-inflammation-in-the-endothelium
#3
Bobo Zhang, Caifeng Gao, Yunlong Li, Min Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Tartary buckwheat is a food medicine dual-use crop with healing effects on cardiovascular diseases and type2 diabetes. It has been proposed that endothelial dysfunction is the initial lesion in these diseases and it's associated with mitochondrial dysfunction, endoplasmic reticulum (ER) stress and inflammation. D-chiro-inositol (DCI) is a bioactive compound of Tartary buckwheat and is always deficit in type2 diabetes. However, it remains unknown whether DCI-enriched Tartary buckwheat extract can ameliorate mitochondrial dysfunction, ER stress and inflammation in the endothelium...
December 7, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29209827/hemostasis-endothelial-stress-inflammation-and-the-metabolic-syndrome
#4
REVIEW
Gerald Grandl, Christian Wolfrum
Obesity and the metabolic syndrome (MS) are two of the pressing healthcare problems of our time. The MS is defined as increased abdominal obesity in concert with elevated fasting glucose levels, insulin resistance, elevated blood pressure, and plasma lipids. It is a key risk factor for type 2 diabetes mellitus (T2DM) and for cardiovascular complications and mortality. Here, we review work demonstrating that various aspects of coagulation and hemostasis, as well as vascular reactivity and function, become impaired progressively during chronic ingestion of a western diet, but also acutely after meals...
December 5, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/29207193/all%C3%A2-trans-retinoic-acid-reduces-endothelin%C3%A2-1-expression-and-increases-endothelial-nitric-oxide-synthase-phosphorylation-in-rabbits-with-atherosclerosis
#5
Linlin Tao, Yumei Nie, Ganxian Wang, Yanhui Ding, Junli Ding, Fangyuan Xiong, Songtao Tang, Yuan Wang, Birong Zhou, Huaqing Zhu
All-trans retinoic acid (ATRA) is a natural derivative of vitamin A that ameliorates atherosclerosis (AS) by regulating inflammatory factors. However, studies concerning the role of retinoic acid in artery endothelial function are rare. Therefore, the present study investigated its role in regulating the production of endothelin‑1 (ET‑1) and nitric oxide (NO) in rabbits with AS. The rabbits were randomly divided into 3 groups: The control group was administered an ordinary diet, while the high fat group and the ATRA drug intervention group were administered a high fat diet...
November 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29196345/mitoprotection-attenuates-myocardial-vascular-impairment-in-porcine-metabolic-syndrome
#6
Fang Yuan, Ahmad F Hedayat, Christopher M Ferguson, Amir Lerman, Lilach O Lerman, Alfonso Eirin
INTRODUCTION: The metabolic syndrome (MetS) leads to cardiac vascular injury, which may reflect in increased retention of endothelial progenitor cells (EPC). Coronary endothelial cell (EC) mitochondria partly regulate vascular function and structure. We hypothesized that chronic mitoprotection would preserve EC mitochondria and attenuate coronary vascular injury and dysfunction in swine MetS. METHODS: Pigs were studied after 16 weeks of diet-induced MetS, MetS treated for the last 4 weeks with the mitochondria-targeted peptide elamipretide (ELAM, 0...
December 1, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29191808/suberanilohydroxamic-acid-as-a-pharmacological-kruppel-like-factor-2-activator-that-represses-vascular-inflammation-and-atherosclerosis
#7
Yanni Xu, Suowen Xu, Peng Liu, Marina Koroleva, Shuya Zhang, Shuyi Si, Zheng Gen Jin
BACKGROUND: Kruppel-like factor 2 (KLF2) is an important zinc-finger transcription factor that maintains endothelial homeostasis by its anti-inflammatory, -thrombotic, -oxidative, and -proliferative effects in endothelial cells. In light of the potent vasoprotective effects of KLF2, modulating KLF2 expression or function could give rise to new therapeutic strategies to treat cardiovascular diseases. METHODS AND RESULTS: High-throughput drug screening based on KLF2 promoter luciferase reporter assay was performed to screen KLF2 activators...
November 30, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29191384/the-effect-of-bioresorbable-vascular-scaffold-implantation-on-distal-coronary-endothelial-function-in-dyslipidemic-swine-with-and-without-diabetes
#8
Mieke van den Heuvel, Oana Sorop, Nienke S van Ditzhuijzen, René de Vries, Richard W B van Duin, Ilona Krabbendam-Peters, Janine E van Loon, Moniek P de Maat, Heleen M van Beusekom, Wim J van der Giessen, A H Jan Danser, Dirk J Duncker
BACKGROUND: We studied the effect of bioresorbable vascular scaffold (BVS) implantation on distal coronary endothelial function, in swine on a high fat diet without (HFD) or with diabetes (DM+HFD). METHODS: Five DM+HFD and five HFD swine underwent BVS implantation on top of coronary plaques, and were studied six months later. Conduit artery segments >5mm proximal and distal to the scaffold and corresponding control segments of non-scaffolded coronary arteries, as well as segments of small arteries within the flow-territories of scaffolded and non-scaffolded arteries were harvested for in vitro vasoreactivity studies...
November 20, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29188890/iberian-cured-ham-consumption-improves-endothelial-function-in-healthy-subjects
#9
J Saban-Ruiz, M Fabregate-Fuente, R Fabregate-Fuente, A Andres-Castillo, A Palomino-Antolin, D Barrio-Carreras, L Martin-Fernandez, F Altamirano, C Fernandez-Fernandez, C Andres-Lacueva
OBJECTIVES: Previous studies have shown that dietary components such as oleic acid or polyphenols exert beneficial effects on endothelium. We aimed to assess the impact of regular consumption of Iberian cured-ham (ICH) on endothelial function. DESIGN: An open-label, randomized controlled parallel study. SETTING: Volunteers recruited through advertisements at a hospital in Madrid, Spain. PARTICIPANTS: 102 Caucasian adults (76...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29181133/use-of-dark-chocolate-for-diabetic-patients-a-review-of-the-literature-and-current-evidence
#10
REVIEW
Syed Raza Shah, Richard Alweis, Najla Issa Najim, Amin Muhammad Dharani, Muhammad Ahmed Jangda, Maira Shahid, Ahmed Nabeel Kazi, Syed Arbab Shah
Dietary changes are a major lifestyle factor that can influence the progression of chronic diseases such as diabetes. Recently, flavanols, a subgroup of plant-derived phytochemicals called flavonoids, have gained increasing attention, due to studies showing an inverse correlation between dietary intake of flavanols and incidence of diabetes. Flavanoids in the cocoa plant may ameliorate insulin resistance by improving endothelial function, altering glucose metabolism, and reducing oxidative stress. Oxidative stress has been proposed as the main culprit for insulin resistance...
October 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/29175268/peripheral-vascular-atherosclerosis-in-a-novel-pcsk9-gain-of-function-mutant-ossabaw-miniature-pig-model
#11
Ahmad F Hedayat, Kyoung-Ha Park, Taek-Geun Kwon, John R Woollard, Kai Jiang, Daniel F Carlson, Amir Lerman, Lilach O Lerman
Hypercholesterolemia is a major risk factor for atherosclerosis. Remaining challenges in the management of atherosclerosis necessitate development of animal models that mimic human pathophysiology. We characterized a novel mutant pig model with DNA transposition of D374Y gain-of-function (GOF) cDNA of chimp proprotein convertase subtilisin/kexin type-9 (PCSK9), and tested the hypothesis that it would develop peripheral vascular remodeling and target organ injury in the kidney. Wild-type or PCSK9-GOF Ossabaw miniature pigs fed a standard or atherogenic diet (AD) (n = 7 each) were studied in vivo after 3 and 6 months of diet...
November 3, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29170641/endothelial-function-in-healthy-young-individuals-is-associated-with-dietary-consumption-of-saturated-fat
#12
Elisabeth A Lambert, Sarah Phillips, Regina Belski, Ainura Tursunalieva, Nina Eikelis, Carolina I Sari, John B Dixon, Nora Straznicky, Mariee Grima, Geoffrey A Head, Markus Schlaich, Gavin W Lambert
Background: A diet rich in fat, in particular saturated fat (SF), may be linked to cardiovascular disease development, possibly due to a detrimental effect of fat on endothelial function (EF). Objective: We aimed to determine whether the habitual SF intake [as a ratio to total fat (the sum of saturated, polyunsaturated, and monounsaturated fat)] might influence endothelial function in young, overweight but otherwise healthy adults. Design: Sixty-nine young adults (49 males, mean age: 23 ± 1 years, mean BMI: 29...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29167167/cellular-mechanisms-underlying-obesity-induced-arterial-stiffness
#13
Annayya R Aroor, Guanghong Jia, James R Sowers
Obesity is an emerging pandemic driven by consumption of a diet rich in high fat and high refined carbohydrates (western diet [WD]) and a sedentary life style in both children and adults. There is mounting evidence that arterial stiffness in obesity is an independent and strong predictor of adverse cardiovascular disease (CVD), cognitive functional decline and chronic kidney disease. Cardiovascular stiffness is a precursor to systolic hypertension, cardiac diastolic dysfunction, impairment of coronary and cerebral blood flow, and atherosclerosis...
November 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29164133/role-of-dietary-antioxidants-in-the-preservation-of-vascular-function-and-the-modulation-of-health-and-disease
#14
REVIEW
Saradhadevi Varadharaj, Owen J Kelly, Rami N Khayat, Purnima S Kumar, Naseer Ahmed, Jay L Zweier
In vascular diseases, including hypertension and atherosclerosis, vascular endothelial dysfunction (VED) occurs secondary to altered function of endothelial nitric oxide synthase (eNOS). A novel redox regulated pathway was identified through which eNOS is uncoupled due to S-glutathionylation of critical cysteine residues, resulting in superoxide free radical formation instead of the vasodilator molecule, nitric oxide. In addition, the redox sensitive cofactor tetrahydrobiopterin, BH4, is also essential for eNOS coupling...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29162773/a-high-fat-and-high-cholesterol-diet-induces-cardiac-fibrosis-vascular-endothelial-and-left-ventricular-diastolic-dysfunction-in-shrsp5-dmcr-rats
#15
Shogo Watanabe, Shota Kumazaki, Katsuhiro Kusunoki, Terumi Inoue, Yui Maeda, Shinichi Usui, Ryoko Shinohata, Takashi Ohtsuki, Satoshi Hirohata, Shozo Kusachi, Kazuya Kitamori, Mari Mori, Yukio Yamori, Hisao Oka
AIM: Non-alcoholic steatohepatitis (NASH) increases cardiovascular risk regardless of risk factors in metabolic syndrome. However, the intermediary factors between NASH and vascular disease are still unknown because a suitable animal model has never been established. The stroke-prone (SP) spontaneously hypertensive rat, SHRSP5/Dmcr, simultaneously develops hypertension, acute arterial lipid deposits in mesenteric arteries, and NASH when feed with a high-fat and high-cholesterol (HFC) diet...
November 22, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29143455/understanding-the-functional-role-of-microrna-214-3p-in-atherosclerosis-for-the-identification-of-novel-targeted-therapies-to-prevent-or-reverse-endothelial-cell-dysfunction-and-stimulate-autophagy
#16
EDITORIAL
Adriana Georgescu
The original article by Jing Wang and collaborators, entitled "MicroRNA-214-3p: A Link between Autophagy and Endothelial Cell Dysfunction in Atherosclerosis", brings new data concerning molecular mechanisms linking decreased autophagy to endothelial dysfunction in atherosclerosis. In this issue of Acta Physiologica, the authors concluded that microRNA-214-3p (miR-214-3p) controls oxidized low-density lipoprotein (ox-LDL)-induced autophagy in human umbilical vein endothelial cells (HUVECs) by regulating intracellular levels of autophagy-related protein 5 (ATG5), and may have a relevant role in the pathogenesis of atherosclerosis...
November 16, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29129602/standardized-fraction-of-xylocarpus-moluccensis-fruits-improve-vascular-relaxation-and-plaque-stability-in-dyslipidemic-models-of-atherosclerosis
#17
Jitendra S Kanshana, Sanjay C Rebello, Priya Pathak, Babu Nageswararao Kanuri, Hobby Aggarwal, Vasundhara Srivastava, Vivek Khanna, Vishal Singh, Kumaravelu Jagavelu, Manoj K Barthwal, Madhu Dikshit
ETHNOPHARMACOLOGICAL RELEVANCE: Xylocarpus moluccensis (Lamk.) M. Roem of family Meliaceae has triterpenoids rich fruits. Triterpenoids have been known to possess cardioprotection and anti-atherosclerotic activities (Han and Bakovic, 2015; Wu et al., 2009). Standardized fraction of these fruits exhibited anti-dyslipidemic (Srivastava et al., 2015), anti-inflammatory (Ravangpai et al., 2011) and CNS depressant activity (Sarker et al., 2007). However, there is no report in the literature on its cardiovascular effects...
November 10, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29127233/vascular-endothelial-function-masks-increased-sympathetic-vasopressor-activity-in-rats-with-metabolic-syndrome
#18
Sylvain Battault, Cindy Meziat, Alessandro R Nascimento, Laura Braud, Sandrine Gayrard, Christian Legros, Frederic De Nardi, Jocelyne Drai, Olivier Cazorla, Jérôme Thireau, Gregory Meyer, Cyril Reboul
OBJECTIVE: Sympathetic hyperactivation, a common feature of obesity and metabolic syndrome, is a key trigger of hypertension. However, some obese subjects with autonomic unbalance present a dissociation between sympathetic activity mediated vasoconstriction and increased blood pressure. Here, we aimed to determine in a rat model of metabolic syndrome, whether the endothelium eNOS-NO pathway contribute to counteract the vasopressor effect of the sympathetic system. METHODS: Rats were fed a high fat and high sucrose diet for 15 weeks (HFS)...
November 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29106612/mediterranean-diet-as-the-diet-of-choice-for-patients-with-chronic-kidney-disease
#19
Philippe Chauveau, Michel Aparicio, Vincenzo Bellizzi, Katrina Campbell, Xu Hong, Lina Johansson, Anne Kolko, Pablo Molina, Siren Sezer, Christoph Wanner, Pieter M Ter Wee, Daniel Teta, Denis Fouque, Juan J Carrero
Traditional dietary management of chronic kidney disease (CKD) focuses on the quantity within the diet of energy and protein, and the restriction of single micronutrients, with little mention of dietary quality. Dietary patterns that are more plant-based, lower in meat (including processed meat), sodium and refined sugar, and have a higher content of grains and fibres are now included in multiple clinical guidelines for chronic disease prevention. The Mediterranean diet (MD) has been associated with reduced cardiovascular disease incidence in both observational and interventional studies...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29106302/comparative-study-on-the-effects-of-apple-peel-polyphenols-and-apple-flesh-polyphenols-on-cardiovascular-risk-factors-in-mice
#20
Jia Tian, Xiaoyan Wu, Moyang Zhang, Zhongyi Zhou, Yingfeng Liu
Apple consumption has been demonstrated to be associated with reduced risk of cardiovascular disease, and the beneficial effect is probably due to the polyphenols in apple. Here, we for the first time evaluated and compared the in vivo effects of the polyphenolic extracts of apple peels (PAP) and apple fleshes (PAF) on blood pressure, vascular endothelial function, lipid metabolism and insulin resistance. A high-fat and high-fructose (HFHF) diet was used to cause cardiovascular disorders in mice, with blood pressure, serum ET-1, TC, TG, LDL-C, glucose and insulin levels increased, and serum NO and HDL-C levels decreased...
November 6, 2017: Clinical and Experimental Hypertension: CHE
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