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Peripheral blood and atherosclerosis

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https://www.readbyqxmd.com/read/28433861/c-reactive-protein-and-enzymatically-modified-ldl-cooperatively-promote-dendritic-cell-mediated-t-cell-activation
#1
Wei He, Yong Ren, Xiao Wang, Qiao Chen, Shifang Ding
BACKGROUND: Enzymatically modified low density lipoprotein (eLDL), C reactive protein (CRP), dendritic cells (DCs), and T cells were shown to be involved in the pathogenesis of atherosclerosis. This study aimed to investigate whether eLDL and CRP could cooperatively promote DC-mediated T cell activation and proliferation. METHOD: Low density lipoprotein was isolated from healthy human plasma and treated with proteases and cholesterol esterase. CD14(+) monocytes were isolated from human peripheral blood by gradient centrifugation and enriched with CD14 Microbeads, which were then induced with recombinant human IL-4 and granulocyte-macrophage colony-stimulating factor before treated with eLDL and/or CRP...
April 7, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28424820/microparticles-during-long-term-follow-up-after-acute-myocardial-infarction-association-to-atherosclerotic-burden-and-risk-of-cardiovascular-events
#2
Christina Christersson, Åsa Thulin, Agneta Siegbahn
Microparticles (MPs) are formed from platelets (PMPs), endothelial cells (EMPs) and monocytes (MMPs), and in acute myocardial infarction (MI), there is an increase of MPs in the culprit artery. In this study MPs were evaluated in whole blood in 105 patients with MI at five time-points during a two-year follow-up (FU). Patients with non-ST-elevated MI had higher concentrations of CD41+MPs compared to ST-elevated MI patients (p=0.024). The concentrations of PMPs in whole blood increased during the time period (p<0...
April 20, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28420383/ppbp-and-defa1-defa3-genes-in-hyperlipidaemia-as-feasible-synergistic-inflammatory-biomarkers-for-coronary-heart-disease
#3
Yaowapa Maneerat, Kriengchai Prasongsukarn, Surachet Benjathummarak, Wilanee Dechkhajorn
BACKGROUND: Coronary heart disease (CHD) is an important complication of atherosclerosis. Biomarkers, which associate with CHD development, are potential to predict CHD risk. To determine whether genes showing altered expression in hyperlipidaemia (H) and coronary heart disease (CHD) patients compared with controls could be CHD risk biomarkers. METHODS: Control, H, and CHD groups represented atherosclerosis to CHD development. Gene profiling was investigated in peripheral blood mononuclear cells using DNA microarrays...
April 19, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28416142/nanoparticle-mediated-drug-delivery-system-for-atherosclerotic-cardiovascular-disease
#4
REVIEW
Tetsuya Matoba, Jun-Ichiro Koga, Kaku Nakano, Kensuke Egashira, Hiroyuki Tsutsui
Administration of drugs and other therapeutic agents has been the central strategy of contemporary medicine for cardiovascular disease. The use of drug delivery systems (DDS) includes micelles, liposomes, polymeric nanoparticles, dendrimers, carbon nanotubes, and crystalline metals. Nano-DDS modify in vivo drug kinetics, depending on (patho)physiological mechanisms such as retard excretion, vascular permeability, and incorporation by mononuclear phagocyte systems, which constitute the 'passive-targeting' property of nano-DDS...
April 13, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28414714/excess-atherosclerosis-in-systemic-lupus-erythematosus-a-matter-of-renal-involvement-case-control-study-of-281-sle-patients-and-281-individually-matched-population-controls
#5
Johanna T Gustafsson, Marie Herlitz Lindberg, Iva Gunnarsson, Susanne Pettersson, Kerstin Elvin, John Öhrvik, Anders Larsson, Kerstin Jensen-Urstad, Elisabet Svenungsson
BACKGROUND: Systemic lupus erythematosus (SLE), is a heterogeneous disease which predominantly affects young females (90%). SLE is associated with a shorter life expectancy than in the general population. Standardized mortality ratios (SMR) of 2.4 have been reported, which is comparable to diabetes. In modern societies cardiovascular disease (CVD) is the major cause of premature mortality. Accelerated atherosclerosis is generally assumed to be the underlying cause for SLE related CVD...
2017: PloS One
https://www.readbyqxmd.com/read/28405802/vasculo-protective-effect-of-bms-309403-is-independent-of-its-specific-inhibition-of-fatty-acid-binding-protein-4
#6
Yuta Okamura, Kosuke Otani, Akihiro Sekiguchi, Taisuke Kogane, Chiharu Kakuda, Yuzaburo Sakamoto, Tomoko Kodama, Muneyoshi Okada, Hideyuki Yamawaki
Fatty acid-binding protein (FABP) 4 is an adipocytokine mainly expressed in adipocyte and macrophage. Blood FABP4 is related not only to metabolic disorders including insulin resistance and atherosclerosis but also increased blood pressure. We tested the hypothesis that FABP4 plays roles in pathogenesis of hypertension development including proliferation, migration, and inflammation of vascular smooth muscle cells (SMCs) as well as contractile reactivity. FABP4 alone had no influence on proliferation, migration, and inflammation of rat mesenteric arterial SMCs, while it significantly enhanced smooth muscle contraction and increases of systolic blood pressure (SBP) induced by noradrenaline (NA)...
April 13, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28403850/rationale-and-design-of-a-multicenter-placebo-controlled-double-blind-randomized-trial-to-evaluate-the-effect-of-empagliflozin-on-endothelial-function-the-emblem-trial
#7
RANDOMIZED CONTROLLED TRIAL
Atsushi Tanaka, Michio Shimabukuro, Yosuke Okada, Isao Taguchi, Minako Yamaoka-Tojo, Hirofumi Tomiyama, Hiroki Teragawa, Seigo Sugiyama, Hisako Yoshida, Yasunori Sato, Atsushi Kawaguchi, Yumi Ikehara, Noritaka Machii, Tatsuya Maruhashi, Kosuke R Shima, Toshinari Takamura, Yasushi Matsuzawa, Kazuo Kimura, Masashi Sakuma, Jun-Ichi Oyama, Teruo Inoue, Yukihito Higashi, Shinichiro Ueda, Koichi Node
BACKGROUND: Type 2 diabetes mellitus (T2DM) is characterized by systemic metabolic abnormalities and the development of micro- and macrovascular complications, resulting in a shortened life expectancy. A recent cardiovascular (CV) safety trial, the EMPA-REG OUTCOME trial, showed that empagliflozin, a sodium glucose cotransporter 2 (SGLT2) inhibitor, markedly reduced CV death and all-cause mortality and hospitalization for heart failure in patients with T2DM and established CV disease (CVD)...
April 12, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28403739/hydrogen-peroxide-and-lipopolysaccharide-differentially-affect-the-expression-of-micrornas-10a-33a-21-221-in-endothelial-cells-before-and-after-coculture-with-monocytes
#8
Atefe Ghamar Talepoor, Mehdi Kalani, Alamtaj Samsami Dahaghani, Mehrnoosh Doroudchi
Inflammation and oxidative stress are important risk factors affecting various cells in the formation of atherosclerosis. MicroRNAs (miRs) are regulators of inflammation and atherogenesis. The expressions of endothelial cell (EC)-specific miR-10a and miR-21 and monocyte-specific miR-33a and miR-221 were investigated using coculture of the ECs and monocytes upon exposure to H2O2 as an oxidative stressor, and endotoxin/lipopolysaccharide (LPS) as a microbial stressor. Human umbilical endothelial cells (HUVECs) and peripheral blood mononuclear cells (or monocytes) were cocultured in M199 complete medium and were incubated with LPS (20 ng/mL) or H2O2 (1%) for 8 hours at 37°C...
March 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28387800/molecular-characterization-of-chlamydia-pneumoniae-associated-to-atherosclerosis
#9
Loubna El Yazouli, Alexis Criscuolo, Hicham Hejaji, Mohamed Bouaaza, Naima Elmdaghri, Aziz Aroussi Alami, Abderahim Amraoui, Nadia Dakka, Fouzia Radouani
Chlamydia pneumoniae is a respiratory pathogen associated with chronic inflammatory diseases such as asthma and atherosclerosis, and its detection in human carotid and coronary atheroma suggests some support for its involvement in atherogenesis. The main objective of our study was to evaluate the association between Chlamydia pneumoniae and atherosclerosis in Moroccan patients through a case/control approach and detected strain genotyping. A total of 137 cases and 124 controls were enrolled, nested PCR was performed for Chlamydia pneumoniae screening of the peripheral blood mononuclear cells (PBMCs) of both cases and controls as well as atheroma plaques from 37 cases, and positive samples were subjected to sequencing for genotyping and phylogenetic analysis...
April 6, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28374070/knockdown-of-microrna-17-5p-ameliorates-atherosclerotic-lesions-in-apoe-mice-and-restores-the-expression-of-very-low-density-lipoprotein-receptor
#10
Lili Tan, Liang Meng, Xiaojing Shi, Bo Yu
OBJECTIVE: To propose and verify a hypothesis that miR-17-5p knockdown may mitigate atherosclerotic lesions using atherosclerotic ApoE(-/-) mice as serum microRNA-17-5p (miR-17-5p) is elevated in patients with atherosclerosis. RESULTS: The level of miR-17-5p was higher while the level of very low density lipoprotein receptor (VLDLR), a predicted target of miR-17-5p, was lower in the peripheral blood lymphocytes (PBLs) of atherosclerosis patients as compared with control PBLs...
April 3, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28349710/endovascular-devices-and-revascularization-techniques-for-limb-threatening-ischemia-in-individuals-with-diabetes
#11
Jayer Chung
Diabetes mellitus (DM) is a rapidly worsening global epidemic over the last thirty-five years. The increased prevalence of DM has changed the phenotypic expression of atherosclerotic limb threatening ischemia (LTI), resulting in an increase in lesions in the tibial vessels. These patients are also afflicted with peripheral neuropathy, foot deformities, and medial calcification of the vasculature. In response to the evolving phenotype of atherosclerosis, newer minimally invasive tools and techniques have been developed to improve the blood supply in LTI...
March 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28344615/usefulness-of-the-platelet-to-lymphocyte-ratio-in-predicting-long-term-cardiovascular-mortality-in-patients-with-peripheral-arterial-occlusive-disease
#12
Fatih Uzun, Mehmet Erturk, Huseyin Altug Cakmak, Ali Kemal Kalkan, Ibrahim Faruk Akturk, Ahmet Arif Yalcin, Begum Uygur, Umit Bulut, Kursat Oz
INTRODUCTION: Inflammation and increased platelet activation play a crucial role in the initiation and progression of atherosclerosis. Platelet-to-lymphocyte ratio (PLR) has recently been reported as a new independent predictor for major adverse cardiovascular events in cardiovascular diseases. AIM: To investigate the relation between PLR and cardiovascular mortality in patients with intermittent claudication or critical limb ischemia (CLI) or both. MATERIAL AND METHODS: In our retrospective study, 602 consecutive patients who were admitted to a large tertiary hospital with the diagnosis of symptomatic peripheral arterial occlusive disease (PAOD) were included...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28340040/impaired-ability-to-grow-colonies-of-endothelial-stem-cells-could-be-the-mechanism-explaining-the-high-cardiovascular-morbidity-mortality-of-patients-with-depression
#13
Blum Arnon, Pastukh Nina, Zaroura Imad, Jonathan Rotem, Farhat Kamal
Background: Subjects with depression are more prone to develop cardiovascular complications. Severity of depression is associated with higher rates of cardiovascular mortality and morbidity. Several mechanisms were suggested including accelerated atherosclerosis, alteration of the cardiac autonomic response with a decrease in heart rate variability. There is evidence that circulating endothelial progenitor cells (EPCs) are decreased in patients with major depression. Our hypothesis was that patients with depression would have an impaired ability to build colonies of endothelial progenitor cells...
March 9, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28334721/microrna-9-inhibits-nlrp3-inflammasome-activation-in-human-atherosclerosis-inflammation-cell-models-through-the-jak1-stat-signaling-pathway
#14
Yue Wang, Zhihua Han, Yuqi Fan, Junfeng Zhang, Kan Chen, Lin Gao, Huasu Zeng, Jiatian Cao, Changqian Wang
BACKGROUND/AIMS: MicroRNA-9 (miR-9) is involved in inflammatory reaction in atherosclerosis; however, its function and regulatory mechanisms remain unclear. We aimed to uncover the exact roles of miR-9 and downstream signaling pathways using in vitro human atherosclerosis models. METHODS: We used oxidized low-density lipoprotein (oxLDL)-stimulated human THP-1 derived macrophages, oxLDL-stimulated human primary peripheral blood monocytes and lipopolysaccharides (LPS) or Alum-stimulated human THP-1 derived macrophages as in vitro atherosclerosis inflammation models...
March 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28320747/association-of-cardiovascular-health-with-subclinical-disease-and-incident-events-the-multi-ethnic-study-of-atherosclerosis
#15
Tamar S Polonsky, Hongyan Ning, Martha L Daviglus, Kiang Liu, Gregory L Burke, Mary Cushman, John Eng, Aaron R Folsom, Pamela L Lutsey, Jennifer A Nettleton, Wendy S Post, Ralph L Sacco, Moyses Szklo, Donald M Lloyd-Jones
BACKGROUND: Few adults have ideal cardiovascular health (CVH). We studied associations of an overall CVH score with subclinical cardiovascular disease and events. We assessed whether associations varied by race/ethnicity. METHODS AND RESULTS: Among 5961 participants in the Multi-Ethnic Study of Atherosclerosis, components of CVH were measured at baseline, 2000-2002: systolic blood pressure, total cholesterol, fasting glucose, smoking, physical activity, diet, and body mass index...
March 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28315571/the-relationship-of-micronucleus-frequency-and-nuclear-division-index-with-coronary-artery-disease-syntax-and-gensini-scores
#16
Emrah İpek, Emrah Ermiş, Handan Uysal, Halit Kızılet, Selami Demirelli, Erkan Yıldırım, Sedat Ünver, Bircan Demir, Nergiz Kızılet
OBJECTIVE: We aimed to evaluate the relationship of micronucleus (MN) frequency and nuclear division index (NDI) with SYNTAX and Gensini scores and thrombolysis in myocardial infarction (TIMI) frame counts of coronary arteries in patients undergoing coronary angiography. METHODS: In a single-center prospective observational study, a total of 63 individuals, 48 consecutive patients with coronary artery disease (CAD) and 15 healthy people were included. Before coronary angiography (exposure to X-ray), blood samples were collected for lymphocyte cultures, MN and NDI measurements...
March 9, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28267600/abo-blood-group-is-associated-with-peripheral-arterial-disease-in-african-americans-the-multi-ethnic-study-of-atherosclerosis-mesa
#17
Mindy M Pike, Nicholas B Larson, Christina L Wassel, Kevin P Cohoon, Michael Y Tsai, James S Pankow, Naomi Q Hanson, Paul A Decker, Cecilia Berardi, Kristine S Alexander, Mary Cushman, Neil A Zakai, Suzette J Bielinski
INTRODUCTION: Peripheral artery disease (PAD) affects 8.5 million Americans and thus improving our understanding of PAD is critical to developing strategies to reduce disease burden. The objective of the study was to determine the association of ABO blood type with ankle brachial index (ABI) as well as prevalent and incident PAD in a multi-ethnic cohort. METHODS: The Multi-Ethnic Study of Atherosclerosis includes non-Hispanic White, African, Hispanic, and Chinese Americans aged 45-84...
February 24, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28260335/-association-of-peripheral-and-central-systolic-blood-pressure-with-urinary-albumin-to-creatinine-ratio-in-a-community-based-population-in-beijing
#18
F F Fan, Y X Li, J Jia, H X Li, L T Qi, Y Huo, Y Zhang
Objective: The aim of this study was to investigate the association of both peripheral and central systolic blood pressure (pSBP and cSBP) with urinary albumin-to-creatinine ratio (UACR) in a community-based population in Beijing. Methods: A total of 3 479 Chinese subjects with questionnaire, UACR, pSBP, and cSBP data available were included from an atherosclerosis cohort of Peking University First Hospital in Shijingshan District, Beijing followed up from April to July in 2014. Multivariate linear regression analyses were used to examine the effect of pSBP and cSBP on lnUACR, and further tests for interactions were performed according to associated covariates...
March 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28251701/molecular-effect-of-fenofibrate-on-pbmc-gene-transcription-related-to-lipid-metabolism-in-metabolic-syndrome-patients
#19
I Moreno-Indias, F J Tinahones, M Clemente-Postigo, D Castellano-Castillo, J C Fernández-García, M Macias-Gonzalez, M I Queipo-Ortuño, F Cardona
BACKGROUND: Both fasting and postprandial hypertriglyceridaemia are considered independent risk factors for atherosclerosis. Treatment of hypertriglyceridaemia is based on fibrates, which activate the peroxisome proliferator-activated receptor alpha (PPARα). However, the metabolic pathways that activate or inhibit fibrates, and how the postprandial triglyceride levels are modified, have not yet been fully described. Accordingly, the aim of this study was to determine the feasibility of peripheral blood mononuclear cells (PBMC) to study the effects of fenofibrate in patients with the metabolic syndrome...
March 2, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28251235/cold-exposure-down-regulates-immune-response-pathways-in-ferret-aortic-perivascular-adipose-tissue
#20
Bàrbara Reynés, Evert M van Schothorst, Estefanía García-Ruiz, Jaap Keijer, Andreu Palou, Paula Oliver
Perivascular adipose tissue (PVAT) surrounds blood vessels and releases paracrine factors, such as cytokines, which regulate local inflammation. The inflammatory state of PVAT has an important role in vascular disease; a pro-inflammatory state has been related with atherosclerosis development, whereas an anti-inflammatory one is protective. Cold exposure beneficially affects immune responses and, could thus impact the pathogenesis of cardiovascular diseases. In this study, we investigated the effects of one-week of cold exposure at 4°C of ferrets on aortic PVAT (aPVAT) versus subcutaneous adipose tissue...
March 2, 2017: Thrombosis and Haemostasis
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