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atherosclerosis development

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https://www.readbyqxmd.com/read/28434000/apolipoprotein-a1-inhibits-the-tgf-%C3%AE-1-induced-endothelial-to-mesenchymal-transition-of-human-coronary-artery-endothelial-cells
#1
Juling Feng, Jingjing Zhang, Ampadu O Jackson, Xiao Zhu, Hainan Chen, Wen Chen, Qingjun Gui, Kai Yin
OBJECTIVE: Transforming growth factor β1 (TGF-β1) is the major cytokine for stimulating endothelial cells (ECs) to transdifferentiate to mesenchymal cells (MCs) in the process known as endothelial-to-mesenchymal transition (EndMT). Recently, TGF-β1-induced EndMT has been implicated in the pathogenesis of atherosclerosis (AS). It has been identified that apolipoprotein A1 (ApoA-I) obstructs TGF-β1-induced endothelial dysfunction, providing a protective effect for ECs and also anti-AS activity...
April 22, 2017: Cardiology
https://www.readbyqxmd.com/read/28433630/loss-of-murc-cavin-4-induces-jnk-and-mmp-9-activity-enhancement-in-vascular-smooth-muscle-cells-and-exacerbates-abdominal-aortic-aneurysm
#2
Kotaro Miyagawa, Takehiro Ogata, Tomomi Ueyama, Takeru Kasahara, Naohiko Nakanishi, Daisuke Naito, Takuya Taniguchi, Tetsuro Hamaoka, Naoki Maruyama, Masahiro Nishi, Taizo Kimura, Hiroyuki Yamada, Hiroki Aoki, Satoaki Matoba
Abdominal aortic aneurysm (AAA) is relatively common in elderly patients with atherosclerosis. MURC (muscle-restricted coiled-coil protein)/Cavin-4 modulating the caveolae function of muscle cells is expressed in cardiomyocytes, skeletal muscle cells and smooth muscle cells. Here, we show a novel functional role of MURC/Cavin-4 in vascular smooth muscle cells (VSMCs) and AAA development. Both wild-type (WT) and MURC/Cavin-4 knockout (MURC(-/-)) mice subjected to periaortic application of CaCl2 developed AAAs...
April 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28432984/cigarette-smoke-extract-counteracts-atheroprotective-effects-of-high-laminar-flow-on-endothelial-function
#3
Sindy Giebe, Natalia Cockcroft, Katherine Hewitt, Melanie Brux, Anja Hofmann, Henning Morawietz, Coy Brunssen
Tobacco smoking and hemodynamic forces are key stimuli in the development of endothelial dysfunction and atherosclerosis. High laminar flow has an atheroprotective effect on the endothelium and leads to a reduced response of endothelial cells to cardiovascular risk factors compared to regions with disturbed or low laminar flow. We hypothesize that the atheroprotective effect of high laminar flow could delay the development of endothelial dysfunction caused by cigarette smoking. Primary human endothelial cells were stimulated with increasing dosages of aqueous cigarette smoke extract (CSEaq)...
April 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/28432115/effects-of-exercise-on-vascular-function-structure-and-health-in-humans
#4
Daniel J Green, Kurt J Smith
Physical activity has profound impacts on the vasculature in humans. Acute exercise induces immediate changes in artery function, whereas repeated episodic bouts of exercise induce chronic functional adaptation and, ultimately, structural arterial remodeling. The nature of these changes in function and structure are dependent on the characteristics of the training load and may be modulated by other factors such as exercise-induced inflammation and oxidative stress. The clinical implications of these physiological adaptations are profound...
April 21, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28430919/non-coding-rnas-in-cardiovascular-diseases-diagnostic-and-therapeutic-perspectives
#5
Wolfgang Poller, Stefanie Dimmeler, Stephane Heymans, Tanja Zeller, Jan Haas, Mahir Karakas, David-Manuel Leistner, Philipp Jakob, Shinichi Nakagawa, Stefan Blankenberg, Stefan Engelhardt, Thomas Thum, Christian Weber, Benjamin Meder, Roger Hajjar, Ulf Landmesser
Recent research has demonstrated that the non-coding genome plays a key role in genetic programming and gene regulation during development as well as in health and cardiovascular disease. About 99% of the human genome do not encode proteins, but are transcriptionally active representing a broad spectrum of non-coding RNAs (ncRNAs) with important regulatory and structural functions. Non-coding RNAs have been identified as critical novel regulators of cardiovascular risk factors and cell functions and are thus important candidates to improve diagnostics and prognosis assessment...
April 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28430357/reactive-oxygen-species-key-regulators-in-vascular-health-and-diseases
#6
REVIEW
Qishan Chen, Qiwen Wang, Jianhua Zhu, Qingzhong Xiao, Li Zhang
Reactive oxygen species (ROS) are a group of small reactive molecules that play critical roles in the regulation of various cell functions and biological processes. In the vascular system, physiological levels of ROS are essential for normal vascular functions including endothelial homeostasis and smooth muscle cell contraction. In contrast, uncontrolled overproduction of ROS resulted from imbalance of ROS generation and elimination, leads to the development of vascular diseases. Excessive ROS cause vascular cell damages, recruitment of inflammatory cells, lipid peroxidation, activation of metalloproteinases, and deposition of extracellular matrix, collectively leading to vascular remodeling...
April 21, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28429701/-microbiota-and-metabolic-syndrome
#7
Yüksel Altuntaş, Adnan Batman
The role of gut bacteria in the pathogenesis and treatment of various diseases has been a focus of attention in the last 10 years. Prevalence of diabetes, obesity, and cardiovascular diseases continues to increase, in spite of technological developments and treatment alternatives. Microbial dysbiosis, described as the decrease of useful bacteria and the increase of harmful bacteria, has been associated with diabetes, obesity, atherosclerosis, and metabolic syndrome. In microbial dysbiosis, increase of harmful metabolites and changes to composition of bile acids occur via carbohydrate and protein fermentation...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28428195/progression-of-coronary-artery-calcium-and-incident-heart-failure-the-multi-ethnic-study-of-atherosclerosis
#8
Hooman Bakhshi, Bharath Ambale-Venkatesh, Xiaoying Yang, Mohammad R Ostovaneh, Colin O Wu, Matthew Budoff, Hossein Bahrami, Nathan D Wong, David A Bluemke, João A C Lima
BACKGROUND: Although the association between coronary artery calcium (CAC) and future heart failure (HF) has been shown previously, the value of CAC progression in the prediction of HF has not been investigated. In this study, we investigated the association of CAC progression with subclinical left ventricular (LV) dysfunction and incident HF in the Multi-Ethnic Study of Atherosclerosis. METHODS AND RESULTS: The Multi-Ethnic Study of Atherosclerosis is a population-based study consisting of 6814 men and women aged 45 to 84, free of overt cardiovascular disease at enrollment, who were recruited from 4 ethnicities...
April 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28427040/cortex-mori-radicis-extract-attenuates-myocardial-damages-in-diabetic-rats-by-regulating-ers
#9
Jiangfang Lian, Jiayuan Chen, Yanyan Yuan, Jiayi Chen, M Daud M Sayed, Lin Luo, Yabing Zhu, Song Li, Shizhong Bu
Diabetic cardiomyopathy (DCM) is diagnosed when patients with diabetes develop ventricular dysfunction but do not exhibit coronary atherosclerosis or hypertension. Cortex Mori (CM) Radicis,he epidermis of the root of Morus alba L, has been traditionally used for cough treatment in oriental medicine. In this study, we investigated the protection of myocardium by CM in streptozotocin (STZ)-induced diabetic rats and the underlying mechanisms. Diabetes was induced in rats by an injection of STZ at 25mg/kg. The animals were randomly divided into 4 groups: control, diabetes, diabetes with CM treatment, diabetes with CM preventative treatment...
April 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28425862/the-impact-of-il-17-in-atherosclerosis
#10
Xinjie Lu
Atherosclerosis is a chronic vascular disease in which atherosclerotic plaques develop in the arterial wall. It is believed that inflammation plays a major role in atherosclerotic formation and progression. Thus, atherosclerosis can be considered as an inflammatory disease of the arterial vessel. Mouse model demonstrated that T and B cell deficiency reduces the atherosclerotic burden in the formation of an atherosclerotic lesion. CD4+ T helper cells (Th), such as Th1 cells known being the major CD4+ T cell subtype found in mouse models of atherogenesis, increase plaque formation caused by oxLDL...
April 19, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28424433/-investigating-the-role-of-ceramide-metabolism-associated-cers5-lass5-gene-in-atherosclerosis-pathogenesis-in-endothelial-cells
#11
Neslihan Çoban, Filiz Güçlü Geyik, Özlem Yıldırım, Nihan Erginel Ünaltuna
OBJECTIVE: Ceramide, the backbone of sphingolipids, is the key component affecting atherosclerotic changes through its important second-messenger role. Previous studies have demonstrated protective role of AMP-activated protein kinase (AMPK) genes in regulating atherosclerosis and hypertension. Ceramide synthase 5 (LASS5 or CERS5) gene has function in de novo synthesis of ceramide, and has indirect effect on AMPK gene. Aim of the present study was to identify role of LASS5 gene in atherosclerosis...
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28424305/numerical-simulation-of-haemodynamics-and-low-density-lipoprotein-transport-in-the-rabbit-aorta-and-their-correlation-with-atherosclerotic-plaque-thickness
#12
Xiaoyin Li, Xiao Liu, Peng Zhang, Chenglong Feng, Anqiang Sun, Hongyan Kang, Xiaoyan Deng, Yubo Fan
Two mechanisms of shear stress and mass transport have been recognized to play an important role in the development of localized atherosclerosis. However, their relationship and roles in atherogenesis are still obscure. It is necessary to investigate quantitatively the correlation among low-density lipoproteins (LDL) transport, haemodynamic parameters and plaque thickness. We simulated blood flow and LDL transport in rabbit aorta using computational fluid dynamics and evaluated plaque thickness in the aorta of a high-fat-diet rabbit...
April 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28423914/current-views-on-neuropeptide-y-and-diabetes-related-atherosclerosis
#13
Wei-Wei Sun, Ping Zhu, Yan-Chuan Shi, Chen-Liang Zhang, Xu-Feng Huang, Shi-Yu Liang, Zhi-Yuan Song, Shu Lin
Diabetes-induced atherosclerotic cardiovascular disease is the leading cause of death of diabetic patients. Neuronal regulation plays a critical role in glucose metabolism and cardiovascular function under physiological and pathological conditions, among which, neurotransmitter neuropeptide Y has been shown to be closely involved in these two processes. Elevated central neuropeptide Y level promotes food intake and reduces energy expenditure, thereby increasing adiposity. Neuropeptide Y is co-localized with noradrenaline in central and sympathetic nervous systems...
April 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28422048/sak-hv-decreases-the-self-ubiquitination-of-mekk1-to-promote-macrophage-proliferation-via-mapk-erk-and-jnk-pathways
#14
Chao Zhang, Yao Chen, Xiangdong Gan, Zhiguang Huang, Minji Zou, Wenliang Fu, Weiwei Xing, Donggang Xu
SAK-HV is an anti-atherosclerosis recombinant fusion protein developed by our lab. Our study determined that SAK-HV promoted macrophage proliferation, of which the mechanism was explored by both RAW264.7 cells and primary macrophages. Mass spectrometric analysis and co-immunoprecipitation were combined to screen the SAK-HV-interacting proteins in RAW264.7 cells. Confocal microscopy was adopted to detect the localization of SAK-HV in cells. The results indicated that SAK-HV triggered macrophage proliferation via the mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinases (ERK) and c-Jun N-terminal kinases (JNK) pathways by its SAK-mutant functional domain...
April 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28420668/hypercholesterolemia-induces-differentiation-of-regulatory-t-cells-in-the-liver
#15
Reiner K Mailer, Anton Gisterå, Konstantinos A Polyzos, Daniel F Ketelhuth, Göran K Hansson
Rationale: The liver is the central organ that responds to dietary cholesterol intake and facilitates the release and clearance of lipoprotein particles. Persistent hypercholesterolemia leads to immune responses against lipoprotein particles that drive atherosclerosis. However, the effect of hypercholesterolemia on hepatic T cell differentiation remains unknown. Objective: To investigate hepatic T cell subsets upon hypercholesterolemia. Methods and Results: We observed that hypercholesterolemia elevated the intrahepatic regulatory T (Treg) cell population and increased the expression of transforming growth factor beta 1 in the liver...
April 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28420383/ppbp-and-defa1-defa3-genes-in-hyperlipidaemia-as-feasible-synergistic-inflammatory-biomarkers-for-coronary-heart-disease
#16
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/28419584/context-dependent-function-of-ros-in-the-vascular-endothelium-the-role-of-the-notch-pathway-and-shear-stress
#17
REVIEW
Francesco Vieceli Dalla Sega, Giorgio Aquila, Francesca Fortini, Mauro Vaccarezza, Paola Secchiero, Paola Rizzo, Gianluca Campo
Reactive oxygen species (ROS) act as signal molecules in several biological processes whereas excessive, unregulated, ROS production contributes to the development of pathological conditions including endothelial dysfunction and atherosclerosis. The maintenance of a healthy endothelium depends on many factors and on their reciprocal interactions; in this framework, the Notch pathway and shear stress (SS) play two lead roles. Recently, evidence of a crosstalk between ROS, Notch, and SS, is emerging. The aim of this review is to describe the way ROS interact with the Notch pathway and SS protecting from-or promoting-the development of endothelial dysfunction...
April 17, 2017: BioFactors
https://www.readbyqxmd.com/read/28419534/endocrine-imbalance-associated-with-proteome-changes-in-diabetes
#18
Amr A Sayed, Ahmed M Alhawary, Aboalela Farag, Dina R Johar, Larry H Bernstein
The dynamics of cellular metabolism involves rapid interactions between proteins and nucleotides, proteins and proteins, proteins and mRNA, the action of miRNA, and signaling. These also involve the interactions with respect to the sulfur bond, oxygen radicals that initiate a change in conformation and a chain of events. We review a development in molecular medicine that is a very promising work in progress. We also review the current and future research methods involving mitochondria. Long-term effects of diabetes include glycation of proteins, e...
April 17, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28419519/deletion-of-a-distal-rankl-gene-enhancer-delays-progression-of-atherosclerotic-plaque-calcification-in-hypercholesterolemic-mice
#19
Sohel Shamsuzzaman, Melda Onal, Hillary C St John, J Wesley Pike
Receptor activator of NF-κB ligand (RANKL) is a TNFα-like cytokine which mediates diverse physiological functions including bone remodeling and immune regulation. RANKL has been identified in atherosclerotic lesions; however, its role in atherosclerotic plaque development remains elusive. An enhancer located 75kb upstream of the murine RANKL gene's transcription start site designated D5 is important for its calciotropic hormone- and cytokine-mediated expression. Here, we determined the impact of RANKL levels in atherosclerotic plaque development in the D5 enhancer-null (D5(-/-) ) mice in an atherogenic Apoe(-/-) background fed a high-fat diet (HFD)...
April 17, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28417216/pathogenic-mechanisms-following-ischemic-stroke
#20
REVIEW
Seyed Esmaeil Khoshnam, William Winlow, Maryam Farzaneh, Yaghoob Farbood, Hadi Fathi Moghaddam
Stroke is the second most common cause of death and the leading cause of disability worldwide. Brain injury following stroke results from a complex series of pathophysiological events including excitotoxicity, oxidative and nitrative stress, inflammation, and apoptosis. Moreover, there is a mechanistic link between brain ischemia, innate and adaptive immune cells, intracranial atherosclerosis, and also the gut microbiota in modifying the cerebral responses to ischemic insult. There are very few treatments for stroke injuries, partly owing to an incomplete understanding of the diverse cellular and molecular changes that occur following ischemic stroke and that are responsible for neuronal death...
April 17, 2017: Neurological Sciences
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