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Inflammation,atherosclerosis,oxidative stress

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https://www.readbyqxmd.com/read/28926407/dysfunctional-hdl-from-hiv-individuals-promotes-monocyte-derived-foam-cell-formation-in-vitro
#1
Thomas A Angelovich, Anna C Hearps, Michael N Oda, Mark S Borja, Diana Huynh, Stefanie Homann, Anthony Jaworowski, Theodoros Kelesidis
OBJECTIVE: The role of HDL function in HIV-related atherosclerotic cardiovascular disease (CVD) is unclear. HDLs isolated from HIV+ [HIV(+)HDL] and HIV-uninfected individuals (HDL) were assessed for HDL function and ability to promote monocyte-derived foam cell formation (MDFCF) (a key event in HIV-related CVD) ex vivo. DESIGN/METHODS: Using an established in vitro model of atherogenesis and plasma samples from an established cross-sectional study of virologically-suppressed HIV+ males on stable effective antiretroviral therapy (ART) and with low CVD risk (median age: 42 years; n = 10), we explored the impact of native HDL [HIV(+)HDL] on MDFCF...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28912780/inflammatory-markers-for-arterial-stiffness-in-cardiovascular-diseases
#2
REVIEW
Ioana Mozos, Clemens Malainer, Jarosław Horbańczuk, Cristina Gug, Dana Stoian, Constantin Tudor Luca, Atanas G Atanasov
Arterial stiffness predicts an increased risk of cardiovascular events. Inflammation plays a major role in large arteries stiffening, related to atherosclerosis, arteriosclerosis, endothelial dysfunction, smooth muscle cell migration, vascular calcification, increased activity of metalloproteinases, extracellular matrix degradation, oxidative stress, elastolysis, and degradation of collagen. The present paper reviews main mechanisms explaining the crosstalk between inflammation and arterial stiffness and the most common inflammatory markers associated with increased arterial stiffness, considering the most recent clinical and experimental studies...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28910789/end-stage-renal-disease-inflammation-and-cardiovascular-outcomes
#3
Lu Dai, Edyta Golembiewska, Bengt Lindholm, Peter Stenvinkel
Despite marked improvements in renal replacement therapy during the last 30 years, the age-adjusted mortality rate in end-stage renal disease (ESRD) patients is still unacceptably high and comparable to that of many malignancies. Cardiovascular disease (CVD) remains the major cause of morbidity and mortality in ESRD patients. However, traditional risk factors can only partially explain the high premature cardiovascular burden in this population. Nontraditional risk factors, including persistent low-grade inflammation, are critical in the pathogenesis of atherosclerosis, vascular calcification, and other causes of CVD and may also contribute to protein-energy wasting and other complications in chronic kidney disease (CKD) patients...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28903453/the-p38-pathway-a-major-pleiotropic-cascade-that-transduces-stress-and-metastatic-signals-in-endothelial-cells
#4
REVIEW
Isabelle Corre, François Paris, Jacques Huot
By gating the traffic of molecules and cells across the vessel wall, endothelial cells play a central role in regulating cardiovascular functions and systemic homeostasis and in modulating pathophysiological processes such as inflammation and immunity. Accordingly, the loss of endothelial cell integrity is associated with pathological disorders that include atherosclerosis and cancer. The p38 mitogen-activated protein kinase (MAPK) cascades are major signaling pathways that regulate several functions of endothelial cells in response to exogenous and endogenous stimuli including growth factors, stress and cytokines...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28899694/anti-atherosclerotic-effect-of-hesperidin-in-ldlr-mice-and-its-possible-mechanism
#5
Ye-Zi Sun, Jian-Fei Chen, Li-Min Shen, Ji Zhou, Cui-Fang Wang
Hesperidin, a citrus bioflavonoid, exerts numerous pharmacological activities. However, its protective effect against atherosclerosis in vivo remains poorly understood. In the present study, we aimed to observe the effects of hesperidin on high fat diet (HFD)-induced atherosclerosis using LDL receptor deficient (LDLr(-/-)) mice. After 12 weeks of treatment, the animals were sacrificed. The blood samples were collected for further analysis. Mouse peritoneal macrophages were collected. Hepatic lipid content, quantification of atherosclerosis, assessment of oxidative stress and inflammation, gene expressions were performed on liver and aorta samples...
September 9, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28892255/does-cardiovascular-risk-vary-according-to-the-criteria-for-a-diagnosis-of-polycystic-ovary-syndrome
#6
Sedef Ramoglu, Tevfik Yoldemir, Kemal Atasayan, Dilek Gogas Yavuz
AIM: The risk of cardiovascular disease is higher in women with polycystic ovary syndrome (PCOS) compared to healthy individuals. Chronic inflammation, insulin resistance, hyperandrogenemia, hyperlipidemia and increased oxidative stress are known to have a role in the formation of atherosclerosis and cardiovascular disease. The aim of our study was to evaluate if cardiovascular risk varied according to different PCOS criteria, using carotid intima-media thickness (CIMT), which is an important marker of major cardiovascular events in the later stages of life...
September 11, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28888894/exercise-intervention-attenuates-hyperhomocysteinemia-induced-aortic-endothelial-oxidative-injury-by-regulating-sirt1-through-mitigating-nadph-oxidase-lox-1-signaling
#7
Shih-Hung Chan, Ching-Hsia Hung, Jhih-Yuan Shih, Pei-Ming Chu, Yung-Hsin Cheng, Huei-Chen Lin, Pei-Ling Hsieh, Kun-Ling Tsai
Coronary artery disease (CAD) is a critical cardiovascular disease and a cause of high morbidity and mortality in this world. Hyperhomocysteinemia (HHcy) has been suggested as a risk factor for CAD. In addition, SIRT1 (sirtuin 1) has been reported to play a protective role in a variety of diseases, especially in the cardiovascular system. The main purpose of this study was to investigate the effects of exercise training on apoptosis and inflammation in HHcy animals. We also tested whether exercise protected against Hhcy-induced dysfunction of endothelium through modulation of SIRT1...
August 24, 2017: Redox Biology
https://www.readbyqxmd.com/read/28883908/increased-levels-of-oxidative-stress-markers-soluble-cd40-ligand-and-carotid-intima-media-thickness-reflect-acceleration-of-atherosclerosis-in-male-patients-with-ankylosing-spondylitis-in-active-phase-and-without-the-classical-cardiovascular-risk-factors
#8
Agata Stanek, Armand Cholewka, Tomasz Wielkoszyński, Ewa Romuk, Karolina Sieroń, Aleksander Sieroń
OBJECTIVE: The primary aim of the study was to assess levels of oxidative stress markers, soluble CD40 ligand (sCD40L), serum pregnancy-associated plasma protein-A (PAPP-A), and placental growth factor (PlGF) as well as carotid intima-media thickness (IMT) in patients with ankylosing spondylitis (AS) with active phase without concomitant classical cardiovascular risk factors. MATERIAL AND METHODS: The observational study involved 96 male subjects: 48 AS patients and 48 healthy ones, who did not differ significantly regarding age, BMI, comorbid disorders, and distribution of classical cardiovascular risk factors...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28882977/influence-of-diabetes-on-circulating-apoptotic-microparticles-in-patients-with-chronic-hepatitis-c
#9
Jolanta Zuwala-Jagiello, Monika Pazgan-Simon, Eugenia Murawska-Cialowicz, Krzysztof Simon
BACKGROUND/AIM: Type 2 diabetes mellitus (DM) frequently occurs in patients with chronic hepatitis C (CHC) and is associated with atherosclerosis, in which circulating microparticles (MPs) play an important role. We asked whether the presence of DM affects endothelial-derived (EMPs) and platelet-derived microparticles (PMPs) levels; and whether MPs levels associate with biomarkers of inflammation and oxidative stress in patients with CHC. MATERIALS AND METHODS: Overall, 136 patients were enrolled in the study, 86 CHC patients (41 with DM with moderate glycemic control), 20 outpatients with DM and 30 controls...
September 2017: In Vivo
https://www.readbyqxmd.com/read/28878685/oxidative-stress-mediated-atherosclerosis-mechanisms-and-therapies
#10
REVIEW
Xinyu Yang, Yang Li, Yanda Li, Xiaomeng Ren, Xiaoyu Zhang, Dan Hu, Yonghong Gao, Yanwei Xing, Hongcai Shang
Atherogenesis, the formation of atherosclerotic plaques, is a complex process that involves several mechanisms, including endothelial dysfunction, neovascularization, vascular proliferation, apoptosis, matrix degradation, inflammation, and thrombosis. The pathogenesis and progression of atherosclerosis are explained differently by different scholars. One of the most common theories is the destruction of well-balanced homeostatic mechanisms, which incurs the oxidative stress. And oxidative stress is widely regarded as the redox status realized when an imbalance exists between antioxidant capability and activity species including reactive oxygen (ROS), nitrogen (RNS) and halogen species, non-radical as well as free radical species...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28875043/the-role-of-endoplasmic-reticulum-stress-in-cardiovascular-disease-and-exercise
#11
REVIEW
Junyoung Hong, Kwangchan Kim, Jong-Hee Kim, Yoonjung Park
Endoplasmic reticulum (ER) stress, which is highly associated with cardiovascular disease, is triggered by a disturbance in ER function because of protein misfolding or an increase in protein secretion. Prolonged disruption of ER causes ER stress and activation of the unfolded protein response (UPR) and leads to various diseases. Eukaryotic cells respond to ER stress via three major sensors that are bound to the ER membrane: activating transcription factor 6 (ATF6), inositol-requiring protein 1α (IRE1α), and protein kinase RNA-like ER kinase (PERK)...
2017: International Journal of Vascular Medicine
https://www.readbyqxmd.com/read/28860752/gold-nanoparticles-reduce-high-glucose-induced-oxidative-nitrosative-stress-regulated-inflammation-and-apoptosis-via-tuberin-mtor-nf-%C3%AE%C2%BAb-pathways-in-macrophages
#12
Huma Rizwan, Jagdeep Mohanta, Satyabrata Si, Arttatrana Pal
Hyperglycemia is a risk factor for cardiovascular mortality and morbidity, and directly responsible for exacerbating macrophage activation and atherosclerosis. We showed that gold nanoparticles (AuNPs) reduce the high glucose (HG)-induced atherosclerosis-related complications in macrophages via oxidative-nitrosative stress-regulated inflammation and apoptosis. The effects of AuNPs on oxidative-nitrosative stress markers such as cellular antioxidants were attenuated by HG exposure, leading to reduction in the accumulation of reactive oxygen/nitrogen species in cellular compartments...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28855976/antioxidant-effects-of-a-hydroxytyrosol-based-pharmaceutical-formulation-on-body-composition-metabolic-state-and-gene-expression-a-randomized-double-blinded-placebo-controlled-crossover-trial
#13
Carmela Colica, Laura Di Renzo, Domenico Trombetta, Antonella Smeriglio, Sergio Bernardini, Giorgia Cioccoloni, Renata Costa de Miranda, Paola Gualtieri, Paola Sinibaldi Salimei, Antonino De Lorenzo
Hydroxytyrosol (HT) plays a significant role in cardiovascular disease (CVD) protection, and its metabolites are able to protect from the endothelial dysfunction commonly present in atherosclerosis. This randomized double-blinded, placebo-controlled crossover trial determined the effect in healthy volunteers of two gastroresistant capsules containing 15 mg/day of HT, for a 3-week period (HTT). Evaluation of nutritional status, serum metabolites, oxidative stress biomarkers, and gene expression of 9 genes related to oxidative stress, inflammation, and CVDs was performed...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28842356/impact-of-micrornas-on-ischemic-stroke-from-pre-to-post-disease
#14
REVIEW
Guangwen Li, Kahlilia C Morris-Blanco, Mary S Lopez, Tuo Yang, Haiping Zhao, Raghu Vemuganti, Yumin Luo
Stroke is the number one cause of neurological dysfunction in adults and has a heavy socioeconomic burden worldwide. The etiological origins of ischemic stroke and resulting pathological processes are mediated by a multifaceted cascade of molecular mechanisms that are in part modulated by posttranscriptional activity. Accumulating evidence has revealed a role for microRNAs (miRNAs) as essential mediators of posttranscriptional gene silencing in both the physiology of brain development and pathology of ischemic stroke...
August 24, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28836260/hyperhomocysteinemia-and-vascular-injury-the-advance-of-mechanisms-and-drug-targets
#15
REVIEW
Yi Fu, Xian Wang, Wei Kong
Homocysteine (Hcy) is a sulphur-containing non-proteinogenic amino acid. Hyperhomocysteinemia (HHcy), the pathogenic elevation of plasma Hcy as a result of an imbalance of Hcy metabolism, is an independent risk factor for various vascular diseases, such as atherosclerosis, hypertension, vascular calcification, and aneurysm. Hcy-lowering therapy via dietary supplementation with folic acids and vitamin B exhibits a stronger effect on vascular disease prevention in regions in which the population has a low folate consumption than in areas exposed to folate fortification...
August 24, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28830235/endothelial-cell-apoptosis-correlates-with-low-haptoglobin-concentrations-in-diabetes
#16
Rinkoo Dalan, Xiaofeng Liu, Liuh Ling Goh, Sun Bing, Kathy Qian Luo
OBJECTIVE: The haptoglobin 2-2 genotype is associated with lower haptoglobin concentrations and atherosclerosis in diabetes. Endothelial cell apoptosis contributes significantly to atherosclerosis. We studied endothelial cell apoptosis in diabetes patients with haptoglobin 2-2 and non-haptoglobin 2-2 genotype. Approach and results: We pooled plasma from 10 patients with haptoglobin 2-2 and non-haptoglobin 2-2 genotype and quantified endothelial cell apoptosis using a hemodynamic lab-on-chip system...
August 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28812379/dietary-polyphenols-for-atherosclerosis-a-comprehensive-review-and-future-perspectives
#17
Roodabeh Bahramsoltani, Farnaz Ebrahimi, Mohammad Hosein Farzaei, Armaghan Baratpourmoghaddam, Pardis Ahmadi Borkani, Pourouchista Rostamiasrabadi, Amir Hosein Rasouli Amirabadi, Roja Rahimi
Atherosclerosis is one of the most prevalent reasons for premature death in adults. Despite the several conventional drugs in the market; many patients are not completely treated. Here we comprehensively review current clinical evidence regarding the efficacy of dietary polyphenols in atherosclerosis and related complications. PubMed, Cochrane library and Scopus were searched from inception until August 2016 to obtain clinical trials in which polyphenols were evaluated in cardiovascular parameters related to atherosclerosis...
August 16, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28793282/increased-risk-of-atherosclerosis-in-patients-with-sarcoidosis
#18
Elena Bargagli, Elisabetta Rosi, Massimo Pistolesi, Federico Lavorini, Luca Voltolini, Paola Rottoli
Sarcoidosis is a systemic granulomatous disease of unknown etiology. Recent studies demonstrated that its pathogenesis is related with enhanced oxidative stress (protein carbonylation and lipid peroxidation) and alterations in the circulating lipid profile. Alterations of lipid metabolism (including the reduction in high-density lipoprotein cholesterol levels and apolipoprotein A1 concentrations) induce plasma membrane, bronchial and lung capillary endothelial cell damage in sarcoidosis patients. Dyslipidemia is associated with increased oxidative stress, diminished overall antioxidative protection and increased risk for atherosclerosis...
August 10, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28791379/felodipine-inhibits-ox-ldl-induced-reactive-oxygen-species-production-and-inflammation-in-human-umbilical-vein-endothelial-cells
#19
Jie Qi, Jian-Bao Zheng, Wen-Ting Ai, Xiao-Wei Yao, Lei Liang, Gong Cheng, Xi-Ling Shou, Chao-Feng Sun
Oxidative stress and inflammation are involved in the pathogenesis of atherosclerosis. Calcium channel blockers (CCBs) inhibit the development of atherosclerosis, although the underlying molecular basis has not been completely elucidated. The present study was designed to investigate the effects of felodipine, a CCB, on inflammation and oxidative stress in human umbilical vein endothelial cells (HUVECs) and to examine the underlying mechanisms of action. Oxidized low‑density lipoprotein (ox‑LDL) was used to induce an inflammatory response in HUVECs...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28750629/role-of-free-fatty-acids-in-endothelial-dysfunction
#20
REVIEW
Arijit Ghosh, Lei Gao, Abhimanyu Thakur, Parco M Siu, Christopher W K Lai
Plasma free fatty acids levels are increased in subjects with obesity and type 2 diabetes, playing detrimental roles in the pathogenesis of atherosclerosis and cardiovascular diseases. Increasing evidence showing that dysfunction of the vascular endothelium, the inner lining of the blood vessels, is the key player in the pathogenesis of atherosclerosis. In this review, we aimed to summarize the roles and the underlying mechanisms using the evidence collected from clinical and experimental studies about free fatty acid-mediated endothelial dysfunction...
July 27, 2017: Journal of Biomedical Science
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