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atherosclerosis development

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https://www.readbyqxmd.com/read/27915400/the-pathophysiological-role-of-nox2-in-hypertension-and-organ-damage
#1
REVIEW
Maurizio Forte, Cristina Nocella, Elena De Falco, Silvia Palmerio, Leonardo Schirone, Valentina Valenti, Giacomo Frati, Roberto Carnevale, Sebastiano Sciarretta
NADPH oxidases (NOXs) represent one of the major sources of reactive oxygen species in the vascular district. Reactive oxygen species are responsible for vascular damage that leads to several cardiovascular pathological conditions. Among NOX isoforms, NOX2 is widely expressed in many cells types, such as cardiomyocytes, endothelial cells, and vascular smooth muscle cells, confirming its pivotal role in vascular pathophysiology. Studies in mice models with systemic deletion of NOX2, as well as in transgenic mice overexpressing NOX2, have demonstrated the undeniable involvement of NOX2 in the development of hypertension, atherosclerosis, diabetes mellitus, cardiac hypertrophy, platelet aggregation, and aging...
December 3, 2016: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/27914728/-nanotechnology-a-new-paradigm-in-atherosclerosis-treatment
#2
Virna M Martín Giménez, María Belén Ruiz-Roso, Alejandra Beatriz Camargo, Diego Kassuha, Walter Manucha
Atherosclerosis, a known and prevalent disease, causes progressive deterioration of affected vessels, inducing a blood flow reduction with different complications, and its symptoms usually manifest in advanced stages of the disease. Therefore, the classic therapeutic alternatives are insufficient because the damages are many times irreversible. For this reason, there is a need to implement intelligent forms of drug administration and develop new therapeutic targets that reduce the progression of atherosclerotic lesion...
November 30, 2016: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/27914461/the-role-of-cytokines-in-the-development-of-atherosclerosis
#3
REVIEW
A R Fatkhullina, I O Peshkova, E K Koltsova
Atherosclerosis contributes to the development of many cardiovascular diseases, which remain the leading cause of death in developed countries. Atherosclerosis is a chronic inflammatory disease of large and medium-sized arteries. It is caused by dyslipidemia and mediated by both innate and adaptive immune responses. Inflammation is a key factor at all stages of atherosclerosis progression. Cells involved in pathogenesis of atherosclerosis were shown to be activated by soluble factors, cytokines, that strongly influence the disease development...
November 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27910059/gene-therapy-for-post-infarction-ventricular-tachycardia
#4
J Kevin Donahue
Cardiac arrhythmias are a leading cause of morbidity and mortality in the developed world. In particular, cardiac arrest or sudden cardiac death is the leading cause of death in these countries. Death generally results from a ventricular tachyarrhythmia, and pathology data have shown that cardiac arrest victims very frequently have evidence of coronary atherosclerosis with either acute ischemia or healed myocardial infarction. In this work, we describe an animal model that reproducibly has inducible ventricular tachyarrhythmias after healing of a myocardial infarction scar and a gene delivery method that allows gene transfer to the scar and surrounding myocardial tissues...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27909694/2015-clinical-practice-guidelines-for-the-management-of-dyslipidemia-in-the-philippines-executive-summary-dyslipidemia-guidelines-2015
#5
Adriel E Guerrero
The Philippine Heart Association, the Philippine Lipid and Atherosclerosis Society, and the Philippine Society of Endocrinology, Diabetes, and Metabolism, collaborated to develop the 2015 Clinical Practice Guidelines for the Management of Dyslipidemia in the Philippines (2015 CPG). These guidelines are meant to update the 2005 Clinical Practice Guidelines on the Management of Dyslipidemia in the Philippines (2005 CPG). A panel of experts in the fields of dyslipidemia, cardiology, endocrinology and epidemiology were assembled to comprise the technical research committee (TRC) tasked to review available clinical evidence on dyslipidemia management...
October 2016: ASEAN Heart Journal: Official Journal of the ASEAN Federation of Cardiology
https://www.readbyqxmd.com/read/27907146/glycocalyx-degradation-induces-a-proinflammatory-phenotype-and-increased-leukocyte-adhesion-in-cultured-endothelial-cells-under-flow
#6
Karli K McDonald, Scott Cooper, Lisa Danielzak, Richard L Leask
Leukocyte adhesion to the endothelium is an early step in the pathogenesis of atherosclerosis. Effective adhesion requires the binding of leukocytes to their cognate receptors on the surface of endothelial cells. The glycocalyx covers the surface of endothelial cells and is important in the mechanotransduction of shear stress. This study aimed to identify the molecular mechanisms underlying the role of the glycocalyx in leukocyte adhesion under flow. We performed experiments using 3-D cell culture models, exposing human abdominal aortic endothelial cells to steady laminar shear stress (10 dynes/cm2 for 24 hours)...
2016: PloS One
https://www.readbyqxmd.com/read/27907038/equol-attenuates-atherosclerosis-in-apolipoprotein-e-deficient-mice-by-inhibiting-endoplasmic-reticulum-stress-via-activation-of-nrf2-in-endothelial-cells
#7
Ting Zhang, Qin Hu, Linying Shi, Li Qin, Qianyong Zhang, Mantian Mi
The development of atherosclerosis is closely related to excessive endoplasmic reticulum stress (ERs). Equol reportedly protects against cardiovascular disease; however, the underlying mechanism for this protection remains unknown. Herein, the mechanisms contributing to the atheroprotective effect of equol were addressed using apolipoprotein E knockout (apoE-/-) mice fed a high-fat diet (HFD) with or without equol. Equol intervention reduced atherosclerotic lesions in the aorta in HFD-fed apoE-/- mice. Plasma lipid analysis showed that equol intervention reduced triglycerides, total cholesterol and LDL-cholesterol and increased HDL-cholesterol...
2016: PloS One
https://www.readbyqxmd.com/read/27906461/measurement-of-intestinal-and-peripheral-cholesterol-fluxes-by-a-dual-tracer-balance-method
#8
Onne A H O Ronda, Theo H van Dijk, H J Verkade, Albert K Groen
Long-term elevated plasma cholesterol levels put individuals at risk for developing atherosclerosis. Plasma cholesterol levels are determined by the balance between cholesterol input and output fluxes. Here we describe in detail the methodology to determine the different cholesterol fluxes in mice. The percentage of absorbed cholesterol is calculated from a stable isotope-based double-label method. Cholesterol synthesis is calculated from MIDA after (13) C-acetate enrichment. Cholesterol is removed from the body via the feces...
December 1, 2016: Current Protocols in Mouse Biology
https://www.readbyqxmd.com/read/27906187/systemic-application-of-3-methyladenine-markedly-inhibited-atherosclerotic-lesion-in-apoe-mice-by-modulating-autophagy-foam-cell-formation-and-immune-negative-molecules
#9
Shen Dai, Bo Wang, Wen Li, Liyang Wang, Xingguo Song, Chun Guo, Yulan Li, Fengming Liu, Faliang Zhu, Qun Wang, Xiaoyan Wang, Yongyu Shi, Jianing Wang, Wei Zhao, Lining Zhang
A growing body of evidence demonstrates that autophagy, an evolutionarily conserved intracellular degradation process, is involved in the pathogenesis of atherosclerosis and has become a potential therapeutic target. Here we tested the effect of two inhibitors of phosphatidylinositol 3-kinase, 3-methyladenine (3-MA) and 2-(4-morpholinyl)-8-phenyl-chromone (LY294002), commonly used as inhibitors of autophagy, in atherosclerosis in apolipoprotein E(-/-) mice. Systemic application of 3-MA but not LY294002 markedly reduced the size of atherosclerotic plaque and increased the stability of lesions in high-fat diet-fed mice as compared with controls...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27905925/expression-of-insulin-receptor-ir-a-and-b-isoforms-igf-ir-and-ir-igf-ir-hybrid-receptors-in-vascular-smooth-muscle-cells-and-their-role-in-cell-migration-in-atherosclerosis
#10
N Beneit, C E Fernández-García, J L Martín-Ventura, L Perdomo, Ó Escribano, J B Michel, G García-Gómez, S Fernández, S Díaz-Castroverde, J Egido, A Gómez-Hernández, M Benito
BACKGROUND: Abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) is a major contributor to the development of atherosclerotic process. In a previous work, we demonstrated that the insulin receptor isoform A (IRA) and its association with the insulin-like growth factor-I receptor (IGF-IR) confer a proliferative advantage to VSMCs. However, the role of IR and IGF-IR in VSMC migration remains poorly understood. METHODS: Wound healing assays were performed in VSMCs bearing IR (IRLoxP(+/+) VSMCs), or not (IR(-/-) VSMCs), expressing IRA (IRA VSMCs) or expressing IRB (IRB VSMCs)...
December 1, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27905479/role-of-gut-microbiota-in-atherosclerosis
#11
REVIEW
Annika Lindskog Jonsson, Fredrik Bäckhed
Infections have been linked to the development of cardiovascular disease and atherosclerosis. Findings from the past decade have identified microbial ecosystems residing in different habitats of the human body that contribute to metabolic and cardiovascular-related disorders. In this Review, we describe three pathways by which microbiota might affect atherogenesis. First, local or distant infections might cause a harmful inflammatory response that aggravates plaque development or triggers plaque rupture. Second, metabolism of cholesterol and lipids by gut microbiota can affect the development of atherosclerotic plaques...
December 1, 2016: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27905474/inflammatory-processes-in-cardiovascular-disease-a-route-to-targeted-therapies
#12
REVIEW
Neil Ruparelia, Joshua T Chai, Edward A Fisher, Robin P Choudhury
Inflammatory processes are firmly established as central to the development and complications of cardiovascular diseases. Elevated levels of inflammatory markers have been shown to be predictive of future cardiovascular events. The specific targeting of these processes in experimental models has been shown to attenuate myocardial and arterial injury, reduce disease progression, and promote healing. However, the translation of these observations and the demonstration of clear efficacy in clinical practice have been disappointing...
December 1, 2016: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27905470/a-previously-unreported-impact-of-a-pla2g7-gene-polymorphism-on-the-plasma-levels-of-lipoprotein-associated-phospholipase-a2-activity-and-mass
#13
Yue Qi, Dong Zhao, Zhangrong Jia, Wei Wang, Miao Wang, Jiayi Sun, Jun Liu, Yan Li, Wuxiang Xie, Jing Liu
Lipoprotein-associated phospholipase A2 (Lp-PLA2) levels are associated with the development of atherosclerosis. We aimed to assess the genetic determinants of Lp-PLA2 activity and mass by genotyping multiple polymorphisms in PLA2G7, the gene encoding Lp-PLA2, among 1258 participants from the Chinese Multi-provincial Cohort Study-Beijing Project. The Sequenom MassARRAY system, Taqman assay and direct sequencing were adopted. For the first time, the rs13218408 polymorphism was found to be significantly associated with reduced Lp-PLA2 levels...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905385/-a-role-of-genetic-factors-and-related-disorder-of-the-folate-cycle-in-ischemic-stroke
#14
V M Shklovsky, I P Lukashevich, A Yu Remennik, S M Gerasimova, G S Selishchev, D I Malin, V V Valyaeva
AIM: To study a role of MTHFR mutations and their associations with the disturbances of basic parameters of the folate cycle in the development of ischemic stroke (IS). MATERIAL AND METHODS: Fifty-one post-stroke patients, 26 women and 25 men, aged from 29 to 87 years, were included in the study. The control group consisted of 47 healthy people, 23 women and 24 men, aged from 30 to 83 years. MTHFR: rs1801131 and rs1801133 polymorphisms were genotyped. Contents of folate, B12 and homocysteine were measured...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27904611/selective-serotonin-reuptake-inhibitors-and-cardiovascular-events-a-systematic-review
#15
REVIEW
Mohammad Hassan Nezafati, Ali Eshraghi, Mohammad Vojdanparast, Saeed Abtahi, Pouya Nezafati
BACKGROUND: Given the importance of the role of depression in predicting the outcome of cardiovascular disorders, current medications for treating depression, particularly selective serotonin reuptake inhibitors (SSRIs), are taken into consideration. This study aimed to systematically review the published findings in the use of SSRIs and the risk for cardiac events. MATERIALS AND METHODS: An independent review of the Web of Science, PubMed, Scopus, Cochrane, CINAHL, index Copernicus, and Google Scholar, up to 2014, was performed...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27903567/increased-plasma-ige-accelerate-atherosclerosis-in-secreted-igm-deficiency
#16
Dimitrios Tsiantoulas, Ilze Bot, Maria Ozsvar Kozma, Laura Goederle, Thomas Perkmann, Karsten Hartvigsen, Daniel H Conrad, Johan Kuiper, Ziad Mallat, Christoph J Binder
RATIONALE: Deficiency of secreted IgM (sIgM(-/-)) accelerates atherosclerosis in Ldlr(-/-) mice. Several atheroprotective effects of increased levels of IgM antibodies have been suggested, including preventing inflammation induced by oxidized LDL and promoting apoptotic cell clearance. However, the mechanisms by which the lack of sIgM promotes lesion formation remain unknown. OBJECTIVE: To identify the mechanisms by which sIgM deficiency accelerates atherosclerosis in mice...
November 30, 2016: Circulation Research
https://www.readbyqxmd.com/read/27898070/lipids-lipoprotein-distribution-and-depressive-symptoms-the-multi-ethnic-study-of-atherosclerosis
#17
K L Ong, M J Morris, R L McClelland, J Maniam, M A Allison, K-A Rye
Previous studies suggest lower concentrations of total and high-density lipoprotein (HDL) cholesterol to be predictive of depression. We therefore investigated the relationship of lipids and lipoprotein distribution with elevated depressive symptoms (EDS) in healthy men and women from the Multi-Ethnic Study of Atherosclerosis (MESA). Participants were followed up over a 9.5-year period. EDS were defined as a Center for Epidemiological Studies Depression (CES-D) score ⩾16 and/or use of antidepressant drugs...
November 29, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27896968/exploring-the-reproducibility-of-probabilistic-causal-molecular-network-models
#18
Ariella Cohain, Aparna A Divaraniya, Kuixi Zhu, Joseph R Scarpa, Andrew Kasarskis, Jun Zhu, Rui Chang, Joel T Dudley, Eric E Schadt
Network reconstruction algorithms are increasingly being employed in biomedical and life sciences research to integrate large-scale, high-dimensional data informing on living systems. One particular class of probabilistic causal networks being applied to model the complexity and causal structure of biological data is Bayesian networks (BNs). BNs provide an elegant mathematical framework for not only inferring causal relationships among many different molecular and higher order phenotypes, but also for incorporating highly diverse priors that provide an efficient path for incorporating existing knowledge...
2016: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/27893801/pulsatility-index-as-a-diagnostic-parameter-of-reciprocating-wall-shear-stress-parameters-in-physiological-pulsating-waveforms
#19
Idit Avrahami, Dikla Kersh, Alexander Liberzon
Arterial wall shear stress (WSS) parameters are widely used for prediction of the initiation and development of atherosclerosis and arterial pathologies. Traditional clinical evaluation of arterial condition relies on correlations of WSS parameters with average flow rate (Q) and heart rate (HR) measurements. We show that for pulsating flow waveforms in a straight tube with flow reversals that lead to significant reciprocating WSS, the measurements of HR and Q are not sufficient for prediction of WSS parameters...
2016: PloS One
https://www.readbyqxmd.com/read/27890841/development-of-a-scoring-system-for-the-prediction-of-early-graft-failure-after-peripheral-arterial-bypass-surgery
#20
Andreas M Lazaris, Sotiria Mastoraki, Evangelos Kontopantelis, Konstantinos Seretis, Maria Karouki, Konstantinos Moulakakis, Miltiadis Matsagkas, Spyros N Vasdekis
OBJECTIVES: An occluded lower limb arterial bypass is associated with poor prognosis for the limb. Currently, no risk assessment method to estimate the risk of early graft failure exists. Aim of this study was to investigate the effect of various potential factors on early graft failure of infrainguinal bypass surgery and to develop a risk-scoring model to predict it. DESIGN AND METHODS: A prospective observational clinical study was performed. One hundred infrainguinal bypass procedures (60 autologous and 40 synthetic grafts), throughout a 3-year period were included...
November 24, 2016: Annals of Vascular Surgery
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