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https://www.readbyqxmd.com/read/29341140/lipoprotein-modifications-by-gingipains-of-porphyromonas-gingivalis
#1
J Lönn, S Ljunggren, K Klarström-Engström, I Demirel, T Bengtsson, H Karlsson
BACKGROUND AND OBJECTIVE: Several studies have shown an association between periodontitis and cardiovascular disease (CVD). Atherosclerosis is the major cause of CVD, and a key event in the development of atherosclerosis is accumulation of lipoproteins within the arterial wall. Bacteria are the primary etiologic agents in periodontitis and Porphyromonas gingivalis is the major pathogen in the disease. Several studies support a role of modified low-density lipoprotein (LDL) in atherogenesis; however, the pathogenic stimuli that induce the changes and the mechanisms by which this occur are unknown...
January 17, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29338745/study-of-correlation-between-wall-shear-stress-and-elasticity-in-atherosclerotic-carotid-arteries
#2
Bo Zhang, Junyi Gu, Ming Qian, Lili Niu, Dhanjoo Ghista
OBJECTIVE: This paper presents the use of the texture matching method to measure the rabbit carotid artery elasticity value of the experimental group and control group respectively. It compares the experimental rabbits, when they are prompted by pathological histology to be at the period of carotid atherosclerosis fatty streaks and fiber plaques, with the control group. METHODS: We have used ultrasound linear array probe for scanning the rabbit carotid arteries...
January 16, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29337706/cholesterol-efflux-in-the-transplant-patient
#3
Sangita Sudharshan, Ali Javaheri
PURPOSE OF REVIEW: Cholesterol metabolism is increasingly recognized in inflammatory diseases including transplantation. This review discusses the mechanistic underpinnings that tie macrophage cholesterol efflux capacity (CEC) of high-density lipoprotein (HDL) to chronic rejection in transplanted patients. RECENT FINDINGS: Animal studies suggest that administration of apolipoprotein A-I, the main protein constituent of HDL, can prevent transplant arteriosclerosis...
January 13, 2018: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/29336478/apelin-13-treatment-enhances-the-stability-of-atherosclerotic-plaques
#4
Rodrigo Araujo Fraga-Silva, Hugo Seeman, Fabrizio Montecucco, Analina Raquel da Silva, Fabienne Burger, Fabiana Pereira Costa-Fraga, Léa Anguenot, François Mach, Robson Augusto Souza Dos Santos, Nikolaos Stergiopulos, Rafaela Fernandes da Silva
BACKGROUND: Apelin is an endogenous peptidergic system which modulates cardiovascular function. Recent studies pointed out a fundamental contribution of apelin on atherosclerosis development; however, such reports revealed contradictory data, and to date, it is difficult to accurately define a beneficial or deleterious role. To better understand apelin function on atherosclerosis, we aimed to investigate apelin-13 treatment effects on atherosclerotic plaques composition. DESIGN: Apolipoprotein E gene-deleted mice were fed on Western-type diet for 11 weeks...
January 16, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29336246/the-role-of-colchicine-in-the-prevention-of-cerebrovascular-ischemia
#5
Georgios Tsivgoulis, Aristeidis H Katsanos, Georgios Giannopoulos, Vasiliki Panagopoulou, Dalius Jatuzis, Robin Lemnens, Spyridon Deftereos, Peter J Kelly
INTRODUCTION: Despite the proven efficacy of anti-thrombotic, lipid-lowering, anti-hypertensive therapies and lifestyle modification changes for secondary ischemic stroke prevention, the risk of recurrent stroke, coronary events and vascular death remains substantial even for patients treated with high rates of established secondary preventive medications. METHODS: In the present review, we summarize available literature data on the association between systemic inflammation and symptomatic atherosclerosis including recurrent cerebral ischemia...
January 15, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29334984/new-insights-into-angplt3-in-controlling-lipoprotein-metabolism-and-risk-of-cardiovascular-diseases
#6
REVIEW
Xin Su, Dao-Quan Peng
Dyslipidemia, characterized by elevation of plasma low density lipoprotein cholesterol (LDL-C), triglyceride (TG) and reduction of plasma high density lipoprotein cholesterol (HDL-C), has been verified as a causal risk factor for cardiovascular diseases (CVD), leading to a high mortality rate in general population. It is important to understand the molecular metabolism underlying dyslipidemia in order to reduce the risk and to develop effective therapeutic approaches against CVD. ANGPTL3 (human) or Angptl3 (mouse), one member of the angiopoietin-like protein (ANGPTL) family, has been identified as an important regulator of lipid metabolism by inhibiting LPL and EL activity...
January 15, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29331960/pregnancy-loss-and-carotid-intima-media-thickness-in-mexican-women
#7
Sandra A Hartasanchez, Mario Flores-Torres, Adriana Monge, Elsa Yunes, Beatriz Rodriguez, Carlos Cantu-Brito, Daniela Colaci, Hector Lamadrid-Figueroa, Ruy Lopez-Ridaura, Martin Lajous
BACKGROUND: Cardiovascular disease in women often develops without conventional risk factors. Prenatal loss is a common pregnancy outcome that may result in physiological changes can increase the potential future risk of cardiovascular disease. Insufficient information exists regarding the impact of pregnancy loss on early markers of cardiovascular disease risk. METHODS AND RESULTS: Cross-sectional analysis of 1767 disease-free women from the MTC (Mexican Teachers' Cohort) who had been pregnant was used to evaluate the relationship between pregnancy loss and carotid intima-media thickness (IMT)...
January 13, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29331485/impact-of-9p21-3-region-and-atherosclerosis-related-genes-variants-on-long-term-recurrent-hard-cardiac-events-after-a-myocardial-infarction
#8
German J Osmak, Boris V Titov, Natalia A Matveeva, Vitalina V Bashinskaya, Roman M Shakhnovich, Tatiana S Sukhinina, Nino G Kukava, Mikhail Ya Ruda, Olga O Favorova
Atherosclerotic coronary artery disease (CAD) and myocardial infarction (MI) as its most severe clinical complication remain the leading causes of mortality in the majority of countries. Despite the progress in the treatment of MI, quite often the patients, after the first-time MI, develop subsequently a variety of adverse cardiovascular events. In this retrospective study we evaluated the contribution of allelic variations in 9p21.3 locus and in 21 atherogenesis-related genes to the development of hard cardiac events in a cohort of patients of Russian ethnicity after the first acute MI during long-term follow-up (7-10 years)...
January 10, 2018: Gene
https://www.readbyqxmd.com/read/29331080/design-synthesis-and-evaluation-of-novel-oxazaborine-inhibitors-of-the-nlrp3-inflammasome
#9
Alex George Baldwin, Victor S Tapia, Tessa Swanton, Claire S White, James A Beswick, David Brough, Sally Freeman
The NLRP3 inflammasome is an important regulator of the sterile inflammatory response and its activation by host-derived sterile molecules leads to the intracellular activation of caspase-1, processing of the pro-inflammatory cytokines interleukin-1β (IL 1β)/IL-18, and pyroptotic cell death. Inappropriate activation of NLRP3 drives a chronic inflammatory response and is implicated in several non-communicable diseases, including gout, atherosclerosis, type II diabetes and Alzheimer's disease. In this study, we report the design, synthesis and biological evaluation of novel boron compounds (NBCs) as NLRP3 inflammasome inhibitors...
January 13, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29330987/pattern-of-dyslipidaemia-and-its-association-with-hypovitaminosis-d-in-type-2-diabetes-mellitus
#10
Farhat Bashir, Zia Ullah Khan, Naresh Kumar Seetlani, Zaman Sheikh
BACKGROUND: Macrovascular atherosclerosis is an important long-term complication of type 2 diabetes mellitus. Concurrent dyslipidaemia acts as an additional risk factor for these complications. Hypovitaminosis D has been associated with adverse cardiovascular events. These modifiable risk factors of cardiovascular disease are inter-related. In the presence of an increasing incidence of type 2 diabetes mellitus and its associated metabolic abnormalities and widespread vitamin D deficiency in Pakistan, this association needs to be investigated...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29329335/immunization-with-gingipain-a-hemagglutinin-domain-of-porphyromonas-gingivalis-induces-igm-antibodies-binding-to-malondialdehyde-acetaldehyde-modified-low-density-lipoprotein
#11
Mikael Kyrklund, Outi Kummu, Jari Kankaanpää, Ramin Akhi, Antti Nissinen, S Pauliina Turunen, Pirkko Pussinen, Chunguang Wang, Sohvi Hörkkö
Treatment of periodontitis has beneficial effects on systemic inflammation markers that relate to progression of atherosclerosis. We aimed to investigate whether immunization with A hemagglutinin domain (Rgp44) of Porphyromonas gingivalis (Pg), a major etiologic agent of periodontitis, would lead to an antibody response cross-reacting with oxidized low-density lipoprotein (OxLDL) and how it would affect the progression of atherosclerosis in low-density lipoprotein receptor-deficient (LDLR-/-) mice. The data revealed a prominent IgM but not IgG response to malondialdehyde-acetaldehyde modified LDL (MAA-LDL) after Rgp44 and Pg immunizations, implying that Rgp44/Pg and MAA adducts may share cross-reactive epitopes that prompt IgM antibody production and consequently confer atheroprotection...
2018: PloS One
https://www.readbyqxmd.com/read/29328492/exosomes-derived-from-oxidized-ldl-stimulated-macrophages-attenuate-the-growth-and-tube-formation-of-endothelial-cells
#12
Chaoyang Huang, Yuan Huang, Yijiang Zhou, Wencheng Nie, Xiangyuan Pu, Xiaolei Xu, Jianhua Zhu
Oxidized low-density lipoprotein (oxLDL) has a critical role in the development of atherosclerosis. The participation of oxLDL‑stimulated macrophages has been well‑established in atherosclerosis, however the underlying mechanisms are unclear. Macrophage‑derived exosomes are actively released and are involved in numerous physiological and pathological processes. However, the function of exosomes secreted by oxLDL‑stimulated macrophages in atherosclerosis remains unknown. Exosomes from oxLDL‑treated macrophages and controls were co‑cultured with endothelial cells and the exosomes were taken up by endocytosis...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29326139/carotid-artery-wall-imaging-perspective-and-guidelines-from-the-asnr-vessel-wall-imaging-study-group-and-expert-consensus-recommendations-of-the-american-society-of-neuroradiology
#13
L Saba, C Yuan, T S Hatsukami, N Balu, Y Qiao, J K DeMarco, T Saam, A R Moody, D Li, C C Matouk, M H Johnson, H R Jäger, M Mossa-Basha, M E Kooi, Z Fan, D Saloner, M Wintermark, D J Mikulis, B A Wasserman
Identification of carotid artery atherosclerosis is conventionally based on measurements of luminal stenosis and surface irregularities using in vivo imaging techniques including sonography, CT and MR angiography, and digital subtraction angiography. However, histopathologic studies demonstrate considerable differences between plaques with identical degrees of stenosis and indicate that certain plaque features are associated with increased risk for ischemic events. The ability to look beyond the lumen using highly developed vessel wall imaging methods to identify plaque vulnerable to disruption has prompted an active debate as to whether a paradigm shift is needed to move away from relying on measurements of luminal stenosis for gauging the risk of ischemic injury...
January 11, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29325640/selective-egf-receptor-inhibition-in%C3%A2-cd4-%C3%A2-t%C3%A2-cells-induces-anergy-and%C3%A2-limits%C3%A2-atherosclerosis
#14
Lynda Zeboudj, Mikael Maître, Lea Guyonnet, Ludivine Laurans, Jeremie Joffre, Jeremie Lemarie, Simon Bourcier, Wared Nour-Eldine, Coralie Guérin, Jonas Friard, Abdelilah Wakkach, Elizabeth Fabre, Alain Tedgui, Ziad Mallat, Pierre-Louis Tharaux, Hafid Ait-Oufella
BACKGROUND: Several epidermal growth factor receptor (EGFR) inhibitors have been successfully developed for the treatment of cancer, limiting tumor growth and metastasis. EGFR is also expressed by leukocytes, but little is known about its role in the modulation of the immune response. OBJECTIVES: The aim of this study was to determine whether EGFR expressed on CD4+ T cells is functional and to address the consequences of EGFR inhibition in atherosclerosis, a T cell-mediated vascular chronic inflammatory disease...
January 16, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29323716/oxidative-burden-in-familial-hypercholesterolemia
#15
REVIEW
Hamid Mollazadeh, Federico Carbone, Fabrizio Montecucco, Matteo Pirro, Amirhossein Sahebkar
Familial hypercholesterolemia (FH) is a genetic disorder characterized by high serum levels of low-density lipoprotein cholesterol (LDL-c). FH is characterized by accelerated development of atherosclerosis and represents the most frequent hereditary cause of premature coronary heart disease. Mutations of the LDL receptor gene are the genetic signature of FH, resulting in abnormal levels of circulating LDLs. Moreover, FH promotes the generation of reactive oxygen species (ROS) which is another key mechanism involved in atherosclerosis development and progression...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29323337/regulatory-t-cells-as-a-new-therapeutic-target-for-atherosclerosis
#16
REVIEW
Han-Xiao Ou, Bing-Bing Guo, Qi Liu, Yu-Kun Li, Zhen Yang, Wen-Jie Feng, Zhong-Cheng Mo
Atherosclerosis is an autoimmune disease caused by self- and non-self-antigens contributing to excessive activation of T and B cell immune responses. These responses further aggravate vascular inflammation and promote progression of atherosclerosis and vulnerability to plaques via releasing pro-inflammatory cytokines. Regulatory T cells (Tregs) as the major immunoregulatory cells, in particular, induce and maintain immune homeostasis and tolerance by suppressing the immune responses of various cells such as T and B cells, natural killer (NK) cells, monocytes, and dendritic cells (DCs), as well as by secreting inhibitory cytokines interleukin (IL)-10, IL-35 and transcription growth factor β (TGF-β) in both physiological and pathological states...
January 11, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29322712/a-cross-sectional-study-of-cardiovascular-involvement-in-systemic-lupus-erythematosus-in-an-urban-indian-tertiary-care-centre-with-emphasis-on-2-d-echocardiography
#17
Seema Kini, Chetan Vekhande, Vikram Londhey
Background: Cardiovascular manifestations are responsible for considerable morbidity and mortality in patients with SLE. A wide range of manifestations due to active lupus, like pericarditis, valvular affection, myocarditis, and less commonly pulmonary hypertension, are described. This study was undertaken to study cardiovascular manifestations in SLE, with a focus on echocardiography findings, in an urban Indian setting. Methodology: Fifty consecutive cases of SLE following up in the Rheumatology Clinic of TNMC and BYL Nair Charitable hospital, an Indian tertiary care hospital were studied...
November 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29322198/association-of-cardiovascular-biomarkers-with-incident-heart-failure-with-preserved-and-reduced-ejection-fraction
#18
Rudolf A de Boer, Matthew Nayor, Christopher R deFilippi, Danielle Enserro, Vijeta Bhambhani, Jorge R Kizer, Michael J Blaha, Frank P Brouwers, Mary Cushman, Joao A C Lima, Hossein Bahrami, Pim van der Harst, Thomas J Wang, Ron T Gansevoort, Caroline S Fox, Hanna K Gaggin, Willem J Kop, Kiang Liu, Ramachandran S Vasan, Bruce M Psaty, Douglas S Lee, Hans L Hillege, Traci M Bartz, Emelia J Benjamin, Cheeling Chan, Matthew Allison, Julius M Gardin, James L Januzzi, Sanjiv J Shah, Daniel Levy, David M Herrington, Martin G Larson, Wiek H van Gilst, John S Gottdiener, Alain G Bertoni, Jennifer E Ho
Importance: Nearly half of all patients with heart failure have preserved ejection fraction (HFpEF) as opposed to reduced ejection fraction (HFrEF), yet associations of biomarkers with future heart failure subtype are incompletely understood. Objective: To evaluate the associations of 12 cardiovascular biomarkers with incident HFpEF vs HFrEF among adults from the general population. Design, Setting, and Participants: This study included 4 longitudinal community-based cohorts: the Cardiovascular Health Study (1989-1990; 1992-1993 for supplemental African-American cohort), the Framingham Heart Study (1995-1998), the Multi-Ethnic Study of Atherosclerosis (2000-2002), and the Prevention of Renal and Vascular End-stage Disease study (1997-1998)...
January 10, 2018: JAMA Cardiology
https://www.readbyqxmd.com/read/29321950/manifestations-of-renal-impairment-in-fructose-induced-metabolic-syndrome
#19
Kameliya Bratoeva, George S Stoyanov, Albena Merdzhanova, Mariya Radanova
Introduction International studies show an increased incidence of chronic kidney disease (CKD) in patients with metabolic syndrome (MS). It is assumed that the major components of MS - obesity, insulin resistance, dyslipidemia, and hypertension - are linked to renal damage through the systemic release of several pro-inflammatory mediators, such as uric acid (UA), C-reactive protein (CRP), and generalized oxidative stress. The aim of the present study was to investigate the extent of kidney impairment and manifestations of dysfunction in rats with fructose-induced MS...
November 7, 2017: Curēus
https://www.readbyqxmd.com/read/29321129/novel-reversible-model-of-atherosclerosis-and-regression-using-oligonucleotide-regulation-of-the-ldl-receptor
#20
Debapriya Basu, Yunying Hu, Lesley-Ann Huggins, Adam E Mullick, Mark J Graham, Tomasz A Wietecha, Shelley L Barnhart, Allison Mogul, Katharina Pfeiffer, Andreas Zirlik, Edward A Fisher, Karin E Bornfeldt, Florian Willecke, Ira J Goldberg
Rationale: Animal models have been used to explore factors that regulate atherosclerosis. More recently, they have been used to study the factors that promote loss of macrophages and reduction in lesion size after lowering of plasma cholesterol levels. However, current animal models of atherosclerosis regression require challenging surgeries, time-consuming breeding strategies, and/or methods that block liver lipoprotein secretion. Objective: We sought to develop a more direct and time-effective method to create and then reverse hypercholesterolemia as well as atherosclerosis via transient knockdown of the hepatic LDL receptor (LDLR) followed by its rapid restoration...
January 10, 2018: Circulation Research
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