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Atherosclerosis

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https://www.readbyqxmd.com/read/27915415/exendin-4-protects-huvecs-from-tunicamycin-induced-apoptosis-via-inhibiting-the-ire1a-jnk-caspase-3-pathway
#1
Li Wu, XiaoYing Liu, LinXi Wang, YanPing Wang, LiJing Wang, BinBin Guan, Zhou Chen, LiBin Liu
PURPOSE: The abnormal increase of apoptosis of endothelial cells induced by endoplasmic reticulum stress is a significant factor for vascular disease, especially for atherosclerosis. Protecting endothelial cells from endoplasmic reticulum stress is a crucial strategies to combate these diseases. The goal of this study was to explore the effect of Exendin-4, a glucagon-like peptide-1 receptor agonist, on tunicamycin-induced apoptosis in human umbilical vein endothelial cells. METHODS: All studies were performed in primary human umbilical vein endothelial cells treated with tunicamycin with or without Exendin-4 pretreatment...
December 3, 2016: Endocrine
https://www.readbyqxmd.com/read/27915400/the-pathophysiological-role-of-nox2-in-hypertension-and-organ-damage
#2
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/27915217/human-cells-involved-in-atherosclerosis-have-a-sex
#3
REVIEW
Flavia Franconi, Giuseppe Rosano, Stefania Basili, Andrea Montella, Ilaria Campesi
The influence of sex has been largely described in cardiovascular diseases. Atherosclerosis is a complex process that involves many cell types such as vessel cells, immune cells and endothelial progenitor cells; however, many, if not all, studies do not report the sex of the cells. This review focuses on sex differences in human cells involved in the atherosclerotic process, emphasizing the role of sex hormones. Furthermore, we report sex differences and issues related to the processes that determine the fate of the cells such as apoptotic and autophagic mechanisms...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27915184/anti-atherosclerotic-effects-of-pravastatin-in-brachiocephalic-artery-in-comparison-with-en-face-aorta-and-aortic-roots-in-apoe-ldlr-mice
#4
Renata B Kostogrys, Magdalena Franczyk-Zarow, Marlena Gasior-Glogowska, Edyta Kus, Agnieszka Jasztal, Tomasz P Wrobel, Malgorzata Baranska, Izabela Czyzynska-Cichon, Anna Drahun, Angelika Manterys, Stefan Chlopicki
BACKGROUND: Cholesterol-dependent and independent mechanisms were proposed to explain anti-atherosclerotic action of statins in humans. However, their effects in murine models of atherosclerosis have not been consistently demonstrated. Here, we studied the effects of pravastatin on atherosclerosis in ApoE/LDLR(-/-) mice fed a control and atherogenic diet. METHODS: ApoE/LDLR(-/-) mice were fed a control (CHOW) or an atherogenic (Low Carbohydrate High Protein, LCHP) diet...
September 17, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27915034/atheroprotective-role-of-caveolin-1-and-enos-in-an-innovative-transplantation-model-is-mainly-mediated-by-local-effects
#5
Johannes Mierke, Marian Christoph, Christian Pfluecke, Stefanie Jellinghaus, Carsten Wunderlich, Ruth H Strasser, Karim Ibrahim, David M Poitz
Endothelial dysfunction is crucial in the initiation of atherosclerosis, which is associated with a lack of nitric oxide. The endothelial NO synthase (eNOS) is responsible for constitutive synthesis of NO and inhibited by caveolin-1 (Cav1). In the current study, we examined the influence on intima formation through single and combined deletion of eNOS and Cav1 with a focus on differentiation of local and systemic effects. A sex-mismatch transplantation of denudated aortae from female C57BL/6n (WT), Cav1(-/-), eNOS(-/-) and Cav1(-/-)/eNOS(-/-) (C/e(--/--)) mice in common carotid artery of male WT mice was performed...
November 30, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27914728/-nanotechnology-a-new-paradigm-in-atherosclerosis-treatment
#6
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/27914613/association-between-cardiometabolic-index-and-erectile-dysfunction-a-new-index-for-predicting-cardiovascular-disease
#7
Murat Dursun, Huseyin Besiroglu, Alper Otunctemur, Emin Ozbek
Over the past decade, it has been suggested that erectile dysfunction (ED) is an early indicator of cardiovascular disease. In a recent study, a new index, termed as cardiometabolic index (CMI), was defined and measured as the product of triglyceride (TG)/high-density lipoprotein-cholesterol (HDL-C) ratio and waist-to-height ratio, which are good predictors of coronary artery disease and main components of metabolic syndrome (MetS). All components of the CMI are also included in MetS criteria. Thus, we decided to evaluate the correlation between CMI, including the criteria of MetS, and ED...
December 2016: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/27914461/the-role-of-cytokines-in-the-development-of-atherosclerosis
#8
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/27914134/association-between-lumbar-bone-mineral-density-and-carotid-intima-media-thickness-in-korean-adults-a-cross-sectional-study-of-healthy-twin-study
#9
Jinyoung Shin, Joo Hyun Park, Yun Mi Song, Kayoung Lee, Joohon Sung
Bone mineral density (BMD) has been suggested to be associated with atherosclerosis. In the present study, we evaluated the association between lumbar BMD and the segments of carotid intima-media thickness (CIMT), a surrogate marker of subclinical atherosclerosis, in Korean adults, with consideration of sex and menopause status. Among 1,679 Korean adults who enrolled in a Healthy Twin Study, 723 men, 690 premenopausal women, and 266 postmenopausal women measured the CIMT at the common carotid artery intima-media thickness (CCA-IMT), carotid bifurcation intima-media thickness (BIF-IMT), internal carotid artery intima-media thickness (ICA-IMT) using B-mode ultrasound and lumbar BMD using dual-energy X-ray absorptiometry...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27914034/identification-of-oxidized-phosphatidylinositols-present-in-oxldl-and-human-atherosclerotic-plaque
#10
Devin Hasanally, Andrea Edel, Rakesh Chaudhary, Amir Ravandi
Oxidized low-density lipoprotein (OxLDL) plays an important role in initiation and progression of atherosclerosis. Proatherogenic effects of OxLDL have been attributed to bioactive phospholipids generated during LDL oxidation. It is unknown what effect oxidation has on the phosphatidylinositol (PtdIns) molecules in LDL, even though PtdIns is 6% of the total LDL phospholipid pool. We sought to identify and quantitate oxidized phosphatidylinositol (OxPtdIns) species in OxLDL and human atherosclerotic plaque. Bovine liver PtdIns was subjected to non-enzymatic and lipoxygenase-catalyzed oxidation...
December 2, 2016: Lipids
https://www.readbyqxmd.com/read/27913876/atherosclerosis-assessment-and-rheumatoid-arthritis
#11
C Bes, S Gürel, G Buğdaycı, O Dikbaş, M Soy
BACKGROUND AND AIM: Rheumatoid arthritis is associated with increased morbidity and mortality due to atherosclerotic cardiovascular diseases. Lipoprotein-associated phospholipase A2 (Lp-PLA2) is an enzyme of phospholipase A2; it plays an important role in inflammation and atherosclerosis. Herein we aimed to investigate whether Lp-PLA2 activity is associated with atherosclerosis in patients with rheumatoid arthritis and compare the Lp-PLA2 activity with carotid intima media thickness (CIMT)...
December 2, 2016: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/27913753/neutrophil-derived-microparticles-are-released-into-the-coronary-circulation-following-percutaneous-coronary-intervention-in-acute-coronary-syndromes
#12
Gonzalo J Martinez, Jennifer Y Barraclough, Shirley Nakhla, Vivian Kienzle, Stacy Robertson, Ziad Mallat, David S Celermajer, Sanjay Patel
AIMS: To evaluate (i) local coronary and systemic levels of microparticles (MP) in Acute Coronary Syndrome (ACS) and Stable Angina Pectoris (SAP) patients and (ii) their release after plaque disruption with percutaneous coronary intervention (PCI). BACKGROUND: Microparticles are small vesicles originating from plasma membranes of cells after activation or apoptosis and are implicated in the pathogenesis of atherosclerosis. Neutrophils play a role in plaque destabilisation and shed neutrophil-derived microparticles have the potential to drive significant pro-inflammatory and thrombotic downstream effects...
December 2, 2016: Bioscience Reports
https://www.readbyqxmd.com/read/27913444/correlation-of-retinal-arterial-wall-thickness-with-atherosclerosis-predictors-in-type-2-diabetes-without-clinical-retinopathy
#13
Shigeta Arichika, Akihito Uji, Tomoaki Murakami, Kiyoshi Suzuma, Norimoto Gotoh, Nagahisa Yoshimura
AIMS: To evaluate retinal arterial wall thickness (WT) using high-resolution retinal imaging in patients with type 2 diabetes and assess its correlation with risk factors for arteriosclerosis. METHODS: Outer diameter, inner diameter and WT of the retinal artery were measured using adaptive optics scanning laser ophthalmoscopy in 28 patients with type 2 diabetes without clinically apparent diabetic retinopathy and normal volunteers. Laboratory values and intima-media thickness (IMT) in the common carotid artery were measured...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913202/adiponectin-gene-polymorphism-and-ischemic-stroke-subtypes-in-a-chinese-population
#14
Shanshan Li, Ning Lu, Zhongnan Li, Bin Jiao, Hanping Wang, Jia Yang, Tao Yu
As an adipose tissue-specific protein, adiponectin has been suggested as a protective factor for stroke, acting through anti-inflammatory and antiatherogenic effects. Therefore, we aimed to investigate whether 3 polymorphisms (rs1501299, rs2241767, and rs3774261) in the adiponectin (ADIPOQ) gene and their haplotypes were associated with ischemic stroke (IS) and its subtypes in a Chinese population. ADIPOQ gene rs1501299, rs2241767, and rs3774261 polymorphisms were analyzed in 385 IS patients, including 182 patients with large-artery atherosclerosis (LAA), 203 patients with small-vessel occlusion (SVO), and 418 matched controls...
November 29, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27913124/lower-expression-of-genes-involved-in-protection-against-oxidative-stress-in-symptomatic-carotid-atherosclerosis
#15
Nuria Zamora-González, Jesús Crespo-Sanjuán, M Dolores Calvo-Nieves, Diego Sánchez, M Dolores Ganfornina, Gerardo Martínez, Beatriz Aguirre-Gervás, J Antonio González-Fajardo
OBJECTIVE: Oxidative stress is increased in atherosclerosis, manifested both in blood and tissue (atherosclerotic plaque). We aim at describing the expression of a number of genes related to oxidative stress response in carotid atherosclerotic plaques and their relation to symtomatic state. MATERIALS AND METHODS: We have studied the mRNA expression levels for genes related to oxidative stress in a population of 44 patients undergoing carotid endarterectomy, according to the presence (24 patients) or absence (20 patients) of symptoms...
November 29, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27912883/miltirone-protects-human-ea-hy926-endothelial-cells-from-oxidized-low-density-lipoprotein-derived-oxidative-stress-via-a-heme-oxygenase-1-and-mapk-nrf2-dependent-pathway
#16
Liu Zhang, Hui Zhang, Xueyan Li, Bingjie Jia, Yuyu Yang, Ping Zhou, Ping Li, Jun Chen
BACKGROUND: Oxidized low-density lipoprotein (ox-LDL) is an underlying cause of endothelial dysfunction, which is an early event in the pathogenesis of atherosclerosis. In our previous study, we established an ARE-driven luciferase reporter system and screened out several potential Nrf2 activators from Salvia miltiorrhiza Bunge. PURPOSE: Since miltirone showed the most potent ARE-driven luciferase activity, the aim of this study was to test the protective role of miltirone against oxidative stress in endothelial cell and to investigate the underlying mechanistic signaling pathways...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27911414/isolation-and-culture-of-primary-endothelial-cells-from-canine-arteries-and-veins
#17
Loes A Oosterhoff, Hedwig S Kruitwagen, Bart Spee, Frank G van Steenbeek
Cardiovascular disease is studied in both human and veterinary medicine. Endothelial cells have been used extensively as an in vitro model to study vasculogenesis, (tumor) angiogenesis, and atherosclerosis. The current standard for in vitro research on human endothelial cells (ECs) is the use of Human Umbilical Vein Endothelial Cells (HUVECs) and Human Umbilical Artery Endothelial Cells (HUAECs). For canine endothelial research, only one cell line (CnAOEC) is available, which is derived from canine aortic endothelium...
November 18, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911311/risk-factors-and-pathological-substrates-associated-with-agitation-aggression-in-alzheimer-s-disease-a-preliminary-study-using-nacc-data
#18
Simrin Sennik, Tom A Schweizer, Corinne E Fischer, David G Munoz
BACKGROUND: Neuropsychiatric symptoms are common manifestations of Alzheimer's disease (AD). A number of studies have targeted psychosis, i.e., hallucinations and delusions in AD, but few have assessed agitation/aggression in AD. OBJECTIVE: To investigate the risk factors and pathological substrates associated with presence [A(+)] and absence [A(-)] of agitation/aggression (A) in autopsy-confirmed AD. METHODS: Data was collected from the UDS data as of 2015 on the NACC database...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911007/assessment-of-subclinical-atherosclerosis-in-hidradenitis-suppurativa
#19
José C Pascual, Iris González, Diego Corona, Patricia Hispán, José M Ramos, José Sánchez-Paya, Gregor B Jemec
BACKGROUND: Patients with Hidradenitis Suppurativa (HS) have an increased prevalence of traditional cardiovascular (CV) risk factors. OBJECTIVE: Our aim was to investigate the association between subclinical atherosclerosis, detected by carotid ultrasound, and HS. METHODS: A prospective observation and analytical study assessing subclinical atherosclerosis using carotid ultrasound in patients with HS. RESULTS: A total of 62 HS-patients and 62 matched-controls were studied...
December 2, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27911005/adsorption-as-a-contributor-for-inflammatory-mediators-removal-by-different-hemofiltration-membranes-a-pilot-study
#20
Benjamin Malard, Nans Florens, Corine Lambert, Laurent Juillard
Atherosclerosis is an important predictor of mortality in patients with chronic kidney disease (CKD) and is associated with a wide inflammatory response. The aim of this study is to evaluate in vitro how different membranes can remove mediators associated with this pathology in a closed loop dialysis model. We performed experimental hemofiltration in vitro using three different membrane materials. Human plasma was preliminarily incubated with various inflammatory mediators and filtered in a closed loop circulation model for 240 min...
December 2, 2016: Artificial Organs
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