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ATHEROSCLEROSIS PREVENTION

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https://www.readbyqxmd.com/read/28106157/tlr4-antagonist-fp7-inhibits-lps-induced-cytokine-production-and-glycolytic-reprogramming-in-dendritic-cells-and-protects-mice-from-lethal-influenza-infection
#1
Laure Perrin-Cocon, Anne Aublin-Gex, Stefania E Sestito, Kari Ann Shirey, Mira C Patel, Patrice André, Jorge C Blanco, Stefanie N Vogel, Francesco Peri, Vincent Lotteau
Dysregulated Toll-like receptor (TLR)-4 activation is involved in acute systemic sepsis, chronic inflammatory diseases, such as atherosclerosis and diabetes, and in viral infections, such as influenza infection. Thus, therapeutic control of the TLR4 signalling pathway is of major interest. Here we tested the activity of the small-molecule synthetic TLR4 antagonist, FP7, in vitro on human monocytes and monocyte-derived dendritic cells (DCs) and in vivo during influenza virus infection of mice. Our results indicate that FP7 antagonized the secretion of proinflammatory cytokines (IL-6, IL-8, and MIP-1β) by monocytes and DCs (IC50 < 1 μM) and prevented DC maturation upon TLR4 activation by ultrapure lipopolysaccharide (LPS)...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28104071/cardiac-autonomic-dysfunction-and-incidence-of-atrial-fibrillation-results-from-20-years-follow-up
#2
Sunil K Agarwal, Faye L Norby, Eric A Whitsel, Elsayed Z Soliman, Lin Y Chen, Laura R Loehr, Valentin Fuster, Gerardo Heiss, Josef Coresh, Alvaro Alonso
BACKGROUND: Cardiac autonomic perturbations frequently antecede onset of paroxysmal atrial fibrillation (AF). Interventions that influence autonomic inputs to myocardium may prevent AF. However, whether low heart rate or heart rate variability (HRV), which are noninvasive measures of cardiac autonomic dysfunction, are associated with AF incidence is unclear. OBJECTIVES: This study sought to study the association between HRV and risk of AF. METHODS: This study included 11,715 middle-aged adults in the ARIC (Atherosclerosis Risk In Communities) cohort with heart rate and HRV measures obtained from 2-min electrocardiogram recordings performed at baseline (1987 to 1989)...
January 24, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28102849/berberine-sonodynamic-therapy-induces-autophagy-and-lipid-unloading-in-macrophage
#3
Jiayuan Y Kou, Ying Li, Zhaoyu Y Zhong, Yueqing Q Jiang, Xuesong S Li, Xiaobo B Han, Zhongni N Liu, Ye Tian, Liming M Yang
Impaired autophagy in macrophages accompanies the progression of atherosclerosis and contributes to lipid loading in plaques and ineffective lipid degradation. Therefore, evoking autophagy and its associated cholesterol efflux may provide a therapeutic treatment for atherosclerosis. In the present study, berberine-mediated sonodynamic therapy (BBR-SDT) was used to induce autophagy and cholesterol efflux in THP-1 macrophages and derived foam cells. Following BBR-SDT, autophagy was increased in the macrophages, autophagy resistance in the foam cells was prevented, and cholesterol efflux was induced...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28101339/pre-treatment-with-simvastatin-prevents-the-induction-of-diet-induced-atherosclerosis-in-a-rabbit-model
#4
Nikolaos Oikonomidis, Nikolaos Kavantzas, Laskarina-Maria Korou, Panagiotis Konstantopoulos, Vasilios Pergialiotis, Evangelos Misiakos, Ioannis Rizos, Christos Verikokos, Despina N Perrea
The aim of the present study was to investigate the potential antiatherosclerotic activities of simvastatin in rabbits. Twenty-two, male, New Zealand rabbits were divided into the following groups: Control group (group C); cholesterol group (group A), in which the rabbits were fed a commercial rabbit chow supplemented with 0.5% w/w cholesterol for 8 weeks and then fed with normal chow for an additional 8 weeks; and a treatment group (group B), in which the rabbits initially received standard commercial rabbit chow along with being administered simvastatin for 8 weeks, following which they consumed a high-cholesterol diet for a further 8 weeks...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28100853/antioxidant-and-antimicrobial-properties-of-bioactive-phytochemicals-from-cranberry
#5
Monika Baranowska, Agnieszka Bartoszek
In the rational human diet, the important role of fruits and vegetables, which are a source of bioactive phytochemicals, is emphasized. Among fruits particular attention, due to a number of documented health-promoting properties, is focused on cranberry. This fruit is characterized by the high content of antioxidant phenolic compounds, which may support the natural antioxidant defense system of the body in the prevention of damage caused by oxidative stress induced by reactive oxygen species (ROS). Therefore, cranberry is suggested for the prevention of civilization diseases such as atherosclerosis, hypertension and cancer, whose etiology is associated directly with oxidative stress...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28099551/cholesterol-and-prevention-of-atherosclerotic-events-limits-of-a-new-frontier
#6
Luís Eduardo Teixeira de Macedo, Faerstein E
Control of atherosclerotic cardiovascular disease - a highly prevalent condition and one of the main causes of mortality in Brazil and worldwide - is a recurrent subject of great interest for public health. Recently, three new guidelines on dyslipidemia and atherosclerosis prevention have been published. The close release of these important publications is a good opportunity for comparison: the Brazilian model has greater sensitivity, the English model does not work with risk stratification, and the American model may be overestimating the risk...
January 12, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28098353/the-role-of-various-peroxisome-proliferator-activated-receptors-and-their-ligands-in-clinical-practice
#7
REVIEW
Giuseppe Derosa, Amirhossein Sahebkar, Pamela Maffioli
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors involved in several physiological processes including modulation of cellular differentiation, development, metabolism of carbohydrates, lipids, proteins, and tumorigenesis. The aim of this review is to examine how different PPAR ligands act, and discuss their use in clinical practice. PPAR ligands have a lot of effects and applications in clinical practice. Some PPAR ligands such as fibrates (PPAR-α ligands) are currently used for the treatment of dyslipidemia, while pioglitazone and rosiglitazone (PPAR-γ ligands) are anti-diabetic and insulin-sensitizing agents...
January 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28089168/the-relationship-between-dietary-intake-and-other-cardiovascular-risk-factors-with-blood-pressure-in-individuals-without-a-history-of-a-cardiovascular-event-evidence-based-study-with-5670-subjects
#8
Mohsen Mazidi, Mohsen Nematy, Ali Reza Heidari-Bakavoli, Zahra Namadchian, Majid Ghayour-Mobarhan, Gordon A Ferns
BACKGROUND AND AIM: Raised blood pressure is a leading cause of morbidity and mortality worldwide; improved nutritional approaches to population-wide prevention are required.We aimed to investigate the relationship between dietary intake and other cardiovascular risk factors with blood pressure in individuals without a history of a cardiovascular event in an Iranian cohort. MATERIAL AND METHOD: A cross-sectional study of 5670 healthy subjects [approximately 40% (n=2179) males and 60% (n=3491) females] was undertaken in a sample from northeastern Iran...
December 9, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28088205/quercetin-improves-macrophage-reverse-cholesterol-transport-in-apolipoprotein-e-deficient-mice-fed-a-high-fat-diet
#9
Yingjie Cui, Pengbo Hou, Fahui Li, Qinghua Liu, Shucun Qin, Guanghai Zhou, Xuelian Xu, Yanhong Si, Shoudong Guo
BACKGROUND: Quercetin, one of the most widely distributed flavonoids in plants, has been demonstrated to reduce hyperlipidaemia and atherosclerotic lesion formation. Reverse cholesterol transport (RCT) plays a crucial role in exporting cholesterol from peripheral cells, which is one mechanism utilized in the prevention and treatment of atherosclerosis. The aim of this study is to investigate whether quercetin reduces lipid accumulation by improving RCT in vivo. METHODS: Apolipoprotein E-deficient mice fed a high-fat diet were used to investigate the effect of quercetin on RCT by an isotope tracing method, and the underlying mechanisms were clarified by molecular techniques...
January 14, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28087552/screening-for-atrial-fibrillation-using-economical-and-accurate-technology-safety-a-pilot-study
#10
Mark Lown, Arthur Yue, George Lewith, Paul Little, Mike Moore
INTRODUCTION: Atrial fibrillation (AF) is a cause of stroke and a marker of atherosclerosis and of all patients with stroke, around 17% have AF. The screening and treatment of AF could prevent about 12% of all strokes. Several relatively low-cost devices with good accuracy now exist which can detect AF including WatchBP and AliveCor. However, they can only measure the ECG or pulse over short time periods. Inexpensive devices such as heart rate monitors, which are widely available, can measure heart rate for prolonged periods and may have potential in screening for AF...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28078510/relationship-between-framingham-risk-score-and-subclinical-atherosclerosis-in-carotid-plaques-an-in-vivo-study-using-multi-contrast-mri
#11
Feiyu Li, Xiaoying Wang
The assessment and management of early-stage atherosclerosis are important for the prevention of cardiovascular disease (CVD). In this study, we used multi-contrast magnetic resonance imaging (MRI) to investigate the carotid plaque feature in asymptomatic, at-risk subjects; we also evaluated the correlation between MRI findings and Framingham risk score (FRS). One hundred sixty-six asymptomatic individuals with risk factors for CVD underwent multi-contrast MRI. After the arterial morphology and plaque components were outlined, the differences in carotid plaque burden among the various risk categories were analyzed...
January 4, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28075404/advanced-oxidation-protein-products-modified-albumin-induces-differentiation-of-raw264-7-macrophages-into-dendritic-like-cells-which-is-modulated-by-cell-surface-thiols
#12
Silvano Garibaldi, Chiara Barisione, Barbara Marengo, Pietro Ameri, Claudio Brunelli, Manrico Balbi, Giorgio Ghigliotti
Local accumulation of Advanced Oxidation Protein Products (AOPP) induces pro-inflammatory and pro-fibrotic processes in kidneys and is an independent predictor of renal fibrosis and of rapid decline of eGFR in patients with chronic kidney disease (CKD). In addition to kidney damage, circulating AOPP may be regarded as mediators of systemic oxidative stress and, in this capacity, they might play a role in the progression of atherosclerotic damage of arterial walls. Atherosclerosis is a chronic inflammatory disease that involves activation of innate and adaptive immunity...
January 10, 2017: Toxins
https://www.readbyqxmd.com/read/28074932/the-helicobacter-cinaedi-antigen-caip-participates-in-atherosclerotic-inflammation-by-promoting-the-differentiation-of-macrophages-in-foam-cells
#13
Mario Milco D'Elios, Francesca Vallese, Nagaja Capitani, Marisa Benagiano, Maria Lina Bernardini, Mirko Rossi, Gian Paolo Rossi, Mauro Ferrari, Cosima Tatiana Baldari, Giuseppe Zanotti, Marina de Bernard, Gaia Codolo
Recent studies have shown that certain specific microbial infections participate in atherosclerosis by inducing inflammation and immune reactions, but how the pathogens implicated in this pathology trigger the host responses remains unknown. In this study we show that Helicobacter cinaedi (Hc) is a human pathogen linked to atherosclerosis development since at least 27% of sera from atherosclerotic patients specifically recognize a protein of the Hc proteome, that we named Cinaedi Atherosclerosis Inflammatory Protein (CAIP) (n = 71)...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28071010/the-role-of-intestinal-microbiota-in-the-pathogenesis-of-metabolic-diseases
#14
Iwona Węgielska, Joanna Suliburska
The incidence of metabolic diseases is increasing rapidly all over the world. This situation has led researchers to attempt to explain the pathomechanisms of these disorders and to develop specific recommendations for the prevention and treatment of diseases such as obesity, type-2 diabetes, and atherosclerosis. Recent studies show clear evidence of the role of human intestinal microbiota in health and in predispositions to diseases. Gut microbiota affect a number of complex metabolic reactions, significantly altering the functioning of the human body...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28063668/activation-of-cd137-signaling-accelerates-vascular-calcification-in-vivo-and-vitro
#15
Yao Chen, Abdul Basit Bangash, Juan Song, Wei Zhong, Cuiping Wang, Chen Shao, Zhongqun Wang, Jinchuan Yan
OBJECTIVES: Vascular calcification is a characteristic feature of atherosclerosis and is considered as an independent predictor of cardiovascular risk. CD137 signaling has previously shown to be involved in atherosclerosis. However, the possible role of CD137 signaling in regulation of vascular calcification has not been reported. In the present study, we investigated the effect of CD137 signaling on vascular calcification in ApoE(-/-) mice and in vascular smooth muscle cells (VSMCs) of mice...
December 30, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28062625/high-sensitivity-troponin-i-in-stable-patients-with-atherosclerotic-disease-in-the-tra-2%C3%A2-p-timi-50-trial
#16
Alon Eisen, Marc P Bonaca, Petr Jarolim, Benjamin M Scirica, Harvey D White, Michal Tendera, Mikael Dellborg, Jose C Nicolau, Joao Morais, Keith A A Fox, Erin A Bohula, Sabina A Murphy, Eugene Braunwald, David A Morrow
BACKGROUND: Cardiac troponin I, measured with a high-sensitivity assay (hs-TnI), is well-established for risk prediction in acute coronary syndromes. However, its prognostic role in stable atherosclerotic disease, particularly for future myocardial infarction (MI), is less well defined. METHODS: We measured hs-TnI (Abbott ARCHITECT) in 15833 patients with prior MI, ischemic stroke, or peripheral arterial disease from the placebo-controlled Thrombin Receptor Antagonist in Secondary Prevention of Atherothrombotic Ischemic Events (TRA 2°P)-Thrombolysis in Myocardial Infarction (TIMI) 50 trial of the platelet inhibitor vorapaxar, excluding patients with recent MI (<30 days)...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28062509/adam17-deficiency-promotes-atherosclerosis-by-enhanced-tnfr2-signaling-in-mice
#17
Alexandros Nicolaou, Zhen Zhao, Bernd H Northoff, Kristina Sass, Andreas Herbst, Alexander Kohlmaier, Athena Chalaris, Christian Wolfrum, Christian Weber, Sabine Steffens, Stefan Rose-John, Daniel Teupser, Lesca M Holdt
OBJECTIVE: ADAM17 (a disintegrin and metalloproteinase 17) is a sheddase releasing different types of membrane-bound proteins, including adhesion molecules, cytokines, and their receptors as well as inflammatory mediators. Because these substrates modulate important mechanisms of atherosclerosis, we hypothesized that ADAM17 might be involved in the pathogenesis of this frequent disease. APPROACH AND RESULTS: Because Adam17-knockout mice are not viable, we studied the effect of Adam17 deficiency on atherosclerosis in Adam17 hypomorphic mice (Adam17(ex/ex)), which have low residual Adam17 expression...
December 22, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28062503/protective-aptitude-of-annexin-a1-in-arterial-neointima-formation-in-atherosclerosis-prone-mice
#18
Renske J de Jong, Nicole Paulin, Patricia Lemnitzer, Joana R Viola, Carla Winter, Bartolo Ferraro, Jochen Grommes, Christian Weber, Chris Reutelingsperger, Maik Drechsler, Oliver Soehnlein
OBJECTIVE: Restenosis as a consequence of arterial injury is aggravated by inflammatory pathways. Here, we investigate the role of the proresolving protein annexin A1 (AnxA1) in healing after wire injury. APPROACH AND RESULTS: Apoe(-/-) and Apoe(-/-)Anxa1(-/-) mice were subjected to wire injury while fed a high-cholesterol diet. Subsequently, localization of AnxA1 and AnxA1 plasma levels were examined. AnxA1 was found to localize within endothelial cells and macrophages in the neointima...
December 29, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28062492/poliovirus-receptor-related-2-a-cholesterol-responsive-gene-affecting-atherosclerosis-development-by-modulating-leukocyte-migration
#19
Aránzazu Rossignoli, Ming-Mei Shang, Hanna Gladh, Christine Moessinger, Hassan Foroughi Asl, Husain Ahammad Talukdar, Oscar Franzén, Steffen Mueller, Johan L M Björkegren, Erika Folestad, Josefin Skogsberg
OBJECTIVE: Recently, poliovirus receptor-related 2 (Pvrl2) emerged as a top gene in a global gene expression study aiming to detect plasma cholesterol-responsive genes causally related to atherosclerosis regression in hypercholesterolemic mice. PVRL2 is an adherens junction protein implied to play a role in transendothelial migration of leukocytes, a key feature in atherosclerosis development. In this study, we investigated the effect of Pvrl2 deficiency on atherosclerosis development and transendothelial migration of leukocytes activity...
January 5, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28059952/atp-citrate-lyase-genetics-molecular-biology-and-therapeutic-target-for-dyslipidemia
#20
Amy C Burke, Murray W Huff
PURPOSE OF REVIEW: ATP-citrate lyase (ACLY) has re-emerged as a drug target for LDL cholesterol (LDL-C) lowering. We review ACLY as a therapeutic strategy, its genetics, its molecular and cellular biology, and also its inhibition. RECENT FINDINGS: ACLY is a critical enzyme linking glucose catabolism to lipogenesis by providing acetyl-CoA from mitochondrial citrate for fatty acid and cholesterol biosynthesis. Human genetic variants have been associated with enhanced growth and survival of several cancers, and with attenuated plasma triglyceride responses to dietary fish oil...
January 5, 2017: Current Opinion in Lipidology
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