keyword
MENU ▼
Read by QxMD icon Read
search

macrophage and atherogenesis

keyword
https://www.readbyqxmd.com/read/29343087/sulfhydrated-sirtuin-1-increasing-its-deacetylation-activity-is-an-essential-epigenetics-mechanism-of-anti-atherogenesis-by-hydrogen-sulfide
#1
Congkuo Du, Xianjuan Lin, Wenjing Xu, Fengjiao Zheng, Junyan Cai, Jichun Yang, Qinghua Cui, Chaoshu Tang, Jun Cai, Guoheng Xu, Bin Geng
AIMS: Hydrogen sulfide (H2S) has a protective role in the pathogenesis of atherosclerosis by multiple pathways. Sirtuin-1 (SIRT1) is a histone deacetylase, as an essential mediated longevity gene, and has an anti-atherogenic effect by regulating the acetylation of some functional proteins. Whether SIRT1 is involved in protecting H2S in atherosclerosis and its mechanism remains unclear. RESULTS: In ApoE-knockout atherosclerosis mice, treatment with an H2S donor (NaHS or GYY4137) reduced atherosclerotic plaque area, macrophage infiltration, aortic inflammation and plasma lipid level...
January 17, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29327078/the-role-of-the-thioredoxin-thioredoxin-reductase-system-in-the-metabolic-syndrome-towards-a-possible-prognostic-marker
#2
REVIEW
Alexey A Tinkov, Geir Bjørklund, Anatoly V Skalny, Arne Holmgren, Margarita G Skalnaya, Salvatore Chirumbolo, Jan Aaseth
Mammalian thioredoxin reductase (TrxR) is a selenoprotein with three existing isoenzymes (TrxR1, TrxR2, and TrxR3), which is found primarily intracellularly but also in extracellular fluids. The main substrate thioredoxin (Trx) is similarly found (as Trx1 and Trx2) in various intracellular compartments, in blood plasma, and is the cell's major disulfide reductase. Thioredoxin reductase is necessary as a NADPH-dependent reducing agent in biochemical reactions involving Trx. Genetic and environmental factors like selenium status influence the activity of TrxR...
January 11, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29321388/suppression-of-abdominal-aortic-aneurysm-formation-in-mice-by-teneligliptin-a-dipeptidyl-peptidase-4-inhibitor
#3
Yusuke Takahara, Tomotake Tokunou, Toshihiro Ichiki
AIM: Dipeptidyl peptidase-4 (DPP-4) inhibitors lower blood glucose levels through inhibition of incretin degradation, which stimulates insulin secretion. Recent studies reported that DPP-4 inhibitors suppressed atherogenesis in apolipoprotein E-knockout (ApoEKO) mice. In this study, we investigated whether teneligliptin, a DPP-4 inhibitor, affects the development of abdominal aortic aneurysms (AAA) in ApoEKO mice. METHODS: ApoEKO mice were fed a high-fat diet (HFD) and infused with angiotensin (Ang) II by osmotic mini pumps for 4 weeks to induce AAA with (DPP-4i group) or without (control group) teneligliptin administered orally from 1 week before HFD and Ang II infusion to the end of the experiment...
January 10, 2018: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29321372/chronic-skin-inflammation-accelerates-macrophage-cholesterol-crystal-formation-and-atherosclerosis
#4
Yvonne Baumer, Qimin Ng, Gregory E Sanda, Amit K Dey, Heather L Teague, Alexander V Sorokin, Pradeep K Dagur, Joanna I Silverman, Charlotte L Harrington, Justin A Rodante, Shawn M Rose, Nevin J Varghese, Agastya D Belur, Aditya Goyal, Joel M Gelfand, Danielle A Springer, Christopher Ke Bleck, Crystal L Thomas, Zu-Xi Yu, Mårten Cg Winge, Howard S Kruth, M Peter Marinkovich, Aditya A Joshi, Martin P Playford, Nehal N Mehta
Inflammation is critical to atherogenesis. Psoriasis is a chronic inflammatory skin disease that accelerates atherosclerosis in humans and provides a compelling model to understand potential pathways linking these diseases. A murine model capturing the vascular and metabolic diseases in psoriasis would accelerate our understanding and provide a platform to test emerging therapies. We aimed to characterize a new murine model of skin inflammation (Rac1V12) from a cardiovascular standpoint to identify novel atherosclerotic signaling pathways modulated in chronic skin inflammation...
January 11, 2018: JCI Insight
https://www.readbyqxmd.com/read/29317141/serum-levels-of-osteopontin-predict-major-adverse-cardiovascular-events-in-patients-with-severe-carotid-artery-stenosis
#5
Federico Carbone, Fabio Rigamonti, Fabienne Burger, Aline Roth, Maria Bertolotto, Giovanni Spinella, Bianca Pane, Domenico Palombo, Aldo Pende, Aldo Bonaventura, Luca Liberale, Alessandra Vecchié, Franco Dallegri, François Mach, Fabrizio Montecucco
BACKGROUND: Inflammatory mediators in the blood stream and within plaques are key determinants in atherogenesis. Here, we investigated serum osteopontin (OPN) as a potential predictor of poor outcome in patients with severe carotid atherosclerosis. METHODS: Carotid plaques and serum were collected from patients asymptomatic (n=185) or symptomatic (n=40) for ischemic stroke. Plaques were stained for lipids, smooth muscle cells, neutrophils, M1 and M2 macrophage subsets and matrix metallopropteinase-9 (MMP-9)...
January 5, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29300828/non-coding-rnas-key-regulators-of-smooth-muscle-cell-fate-in-vascular-disease
#6
Nicholas J Leeper, Lars Maegdefessel
The vascular smooth muscle cell (SMC) is one of the most plastic cells in the body. Understanding how non-coding RNAs regulate SMC cell-fate decision making in the vasculature has significantly enhanced our understanding of disease development, and opened up exciting new avenues for potential therapeutic applications. Recent studies on SMC physiology have in addition challenged our traditional view on their role and contribution to vascular disease, mainly in the setting of atherosclerosis as well as aneurysm disease, and restenosis after angioplasties...
December 29, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29299993/exosomes-in-cholesterol-metabolism-and-atherosclerosis
#7
Allison B Reiss, Nicholas A Vernice, Nicolle M Siegart, Joshua DeLeon, Lora J Kasselman
OBJECTIVE: Exosomes are small secreted membrane vesicles formed in the late endocytic compartments by inward budding. Interest in these extracellular vesicles and their role in atherosclerosis is growing, as they can affect multiple cellular processes that lead to lipid overload, cytokine secretion and cellular adhesion. Exosomes protect and transport lipids, proteins, and RNAs, fostering intercellular communication among different cell types involved in atherogenesis such as macrophages, endothelium and smooth muscle...
January 3, 2018: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/29290792/therapeutic-effects-of-targeted-ppar%C3%A9-activation-on-inflamed-high-risk-plaques-assessed-by-serial-optical-imaging-in-vivo
#8
Jah Yeon Choi, Jiheun Ryu, Hyun Jung Kim, Joon Woo Song, Joo Hee Jeon, Dae-Hee Lee, Dong Joo Oh, Dae-Gab Gweon, Wang-Yuhl Oh, Hongki Yoo, Kyeongsoon Park, Jin Won Kim
Rationale: Atherosclerotic plaque is a chronic inflammatory disorder involving lipid accumulation within arterial walls. In particular, macrophages mediate plaque progression and rupture. While PPARγ agonist is known to have favorable pleiotropic effects on atherogenesis, its clinical application has been very limited due to undesirable systemic effects. We hypothesized that the specific delivery of a PPARγ agonist to inflamed plaques could reduce plaque burden and inflammation without systemic adverse effects...
2018: Theranostics
https://www.readbyqxmd.com/read/29287777/tanshindiol-c-inhibits-oxidized-low-density-lipoprotein-induced-macrophage-foam-cell-formation-via-peroxiredoxin-1-dependent-pathway
#9
Yuyu Yang, Xueyan Li, Liying Peng, Lin An, Ningyuan Sun, Xuewen Hu, Ping Zhou, Yong Xu, Ping Li, Jun Chen
NF-E2-related factor 2 (Nrf2) has been shown to be protective in atherosclerosis. The loss of Nrf2 in macrophages enhances foam cell formation and promotes early atherogenesis. Tanshindiol C (Tan C) is isolated from the root of Salvia miltiorrhiza Bge., a traditional Chinese medicine that has been used for the treatment of several cardiovascular diseases for many years. This study was aimed to test the potential role of Tan C against macrophage foam cell formation and to explore the underlying mechanism. Firstly, we observed that Tan C markedly suppressed oxidized low-density lipoprotein (oxLDL) induced macrophage foam cell formation...
December 26, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29259301/global-inactivation-of-carboxylesterase-1-ces1-ces1g-protects-against-atherosclerosis-in-ldlr-mice
#10
Jiesi Xu, Yang Xu, Yanyong Xu, Liya Yin, Yanqiao Zhang
Atherosclerotic cardiovascular disease is a leading cause of death in the western world. Increased plasma triglyceride and cholesterol levels are major risk factors for this disease. Carboxylesterase 1 (Ces1/Ces1g) has been shown to play a role in metabolic control. So far, the role of mouse Ces1/Ces1g deficiency in atherosclerosis is not elucidated. We generated Ces1/Ces1g -/- mice. Compared to wild-type mice, Ces1/Ces1g -/- mice had reduced plasma cholesterol levels. We then generated Ces1g -/- Ldlr -/- double knockout (DKO) mice, which were fed a Western diet for 16 weeks...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29217509/macrophage-associated-lipin-1-enzymatic-activity-contributes-to-modified-low-density-lipoprotein-induced-proinflammatory-signaling-and-atherosclerosis
#11
Aimee E Vozenilek, Aaron R Navratil, Jonette M Green, David T Coleman, Cassidy M R Blackburn, Alexandra C Finney, Brenna H Pearson, Roman Chrast, Brian N Finck, Ronald L Klein, A Wayne Orr, Matthew D Woolard
OBJECTIVE: Macrophage proinflammatory responses induced by modified low-density lipoproteins (modLDL) contribute to atherosclerotic progression. How modLDL causes macrophages to become proinflammatory is still enigmatic. Macrophage foam cell formation induced by modLDL requires glycerolipid synthesis. Lipin-1, a key enzyme in the glycerolipid synthesis pathway, contributes to modLDL-elicited macrophage proinflammatory responses in vitro. The objective of this study was to determine whether macrophage-associated lipin-1 contributes to atherogenesis and to assess its role in modLDL-mediated signaling in macrophages...
December 7, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29208753/compartment-resolved-proteomic-analysis-of-mouse-aorta-during-atherosclerotic-plaque-formation-reveals-osteoclast-specific-protein-expression
#12
Michael Wierer, Matthias Prestel, Herbert Schiller, Guangyao Yan, Christoph Schaab, Sepiede Azghandi, Julia Werner, Thorsten Kessler, Rainer Malik, Marta Murgia, Zouhair Aherrahrou, Heribert Schunkert, Martin Dichgans, Matthias Mann
Atherosclerosis leads to vascular lesions that involve major rearrangements of the vascular proteome, especially of the extracellular matrix (ECM). Using single aortas from ApoE knock out mice, we quantified formation of plaques by single-run, high-resolution mass spectrometry (MS)-based proteomics. To probe localization on a proteome-wide scale we employed quantitative detergent solubility profiling. This compartment- and time-resolved resource of atherogenesis comprised 5,117 proteins, 182 of which changed their expression status in response to vessel maturation and atherosclerotic plaque development...
December 4, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29208678/microrna-100-suppresses-chronic-vascular-inflammation-by-stimulation-of-endothelial-autophagy
#13
Franziska Pankratz, Catherine Hohnloser, Xavier Bemtgen, Caterina Jaenich, Sheena Kreuzaler, Imo E Hoefer, Gerard Pasterkamp, Justin Mastroianni, Robert Zeiser, Christian Smolka, Laura A Schneider, Julien Martin, Maike Juschkat, Thomas Helbing, Martin Moser, Christoph Bode, Sebastian Grundmann
Rationale: The interaction of circulating cells within the vascular wall is a critical event in chronic inflammatory processes such as atherosclerosis, but the control of the vascular inflammatory state is still largely unclear. Objective: This study was undertaken to characterize the function of the endothelial-enriched microRNA miR-100 during vascular inflammation and atherogenesis. Methods and Results: Based on a transcriptome analysis of endothelial cells after miR-100 overexpression, we identified miR-100 as potent suppressor of endothelial adhesion molecule expression, resulting in attenuated leukocyte-endothelial interaction in vitro and in vivo as shown by flow cytometry and intravital imaging approach...
December 5, 2017: Circulation Research
https://www.readbyqxmd.com/read/29197606/elevated-plasma-levels-of-ldl-cholesterol-promote-dissecting-thoracic-aortic-aneurysms-in-angiotensin-ii-induced-mice
#14
Hiroki Tanaka, Yasunori Iida, Takayuki Iwaki, Yuko Suzuki, Hideto Sano, Chiharu Miyajima, Nobuhiro Zaima, Takeshi Sasaki, Ayato Sumioka, Shogo Hakamata, Hideyuki Shimizu, Kazuo Umemura, Tetsumei Urano
BACKGROUND: Plasma low-density lipoprotein (LDL)-cholesterol is implicated in aortic aneurysm (AA) and dissection (AD); however, its role in the pathogenesis of AA and AD, a disease with a high mortality rate, is unknown. The existing animal models such as apolipoprotein E-deficient (Apoe-/-) mice cannot reproduce all the conditions of AA/AD, including elevated LDL-cholesterol levels and spontaneous atheroma formation; therefore, a more reliable in vivo model is required. Here, we analyzed angiotensin II-induced mice with combined deficiency of the LDL receptor and the catalytic component of the apolipoprotein B-edisome complex (Ldlr-/-/Apobec1-/-) to understand AA formation and AD occurrence in relation to plasma lipid composition...
November 29, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29176006/gpr120-mechanism-of-action-role-and-potential-for-medical-applications
#15
Hanna Karakuła-Juchnowicz, Joanna Róg, Dariusz Juchnowicz, Justyna Morylowska-Topolska
G protein-coupled receptors (GPCRs) constitute a family of transmembrane proteins that mediate many cellular processes. GPR120/FFAR4, a receptor from this family that is activated by fatty acids, has received considerable attention recently. This paper presents a literature review concerning the role of GPR120 and its mechanism of action in animal and human studies as well as the potential use of GPR120 for the treatment of chronic diseases. Two electronic databases - Medline and Google Scholar - were searched for available studies addressing the review topic that were written in English and published from 2000 to June 2017...
November 19, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/29175142/flaxseed-oil-rich-in-omega-3-protects-aorta-against-inflammation-and-endoplasmic-reticulum-stress-partially-mediated-by-gpr120-receptor-in-obese-diabetic-and-dyslipidemic-mice-models
#16
Alexandre Moura-Assis, Milessa Silva Afonso, Vanessa de Oliveira, Joseane Morari, Gustavo Aparecido Dos Santos, Marcia Koike, Ana Maria Lottenberg, Rodrigo Ramos Catharino, Licio Augusto Velloso, Adelino Sanchez Ramos da Silva, L P de Moura, Eduardo Rochete Ropelle, José Rodrigo Pauli, Dennys Esper Corrêa Cintra
The "first hit" to atherogenesis is driven by toll-like receptor 4, endoplasmic reticulum stress and ultimately metabolic dysfunction. In this study, we hypothesized that a flaxseed oil-enriched diet (FS) abolishes these inflammatory signaling pathway and restore metabolic homeostasis by activating the fatty acid receptor GPR120 in aorta of obese mice. Glucose homeostasis was assessed by GTT and ITT; lipidomics was performed using a Hybrid Ion Trap-Orbitrap Mass Spectrometer; serum lipids were measured using colorimetric assays; GPR120 and infiltrating macrophages were analyzed by immunofluorescence; protein immunoprecipitation and gene expression were evaluated by Western blot and RT-PCR, respectively...
October 18, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29155735/quantification-of-monocyte-transmigration-and-foam-cell-formation-from-individuals-with-chronic-inflammatory-conditions
#17
Thomas A Angelovich, Anna C Hearps, Anna Maisa, Theodoros Kelesidis, Anthony Jaworowski
Coronary artery disease (CAD) is a leading cause of morbidity and mortality worldwide. Atherosclerosis, a leading cause of CAD, is initiated by the transmigration of innate immune monocytes to inflammatory sites of deposited lipid called fatty streaks, which are present in arterial walls of medium to large arteries. The key pathogenic feature of lesions at this early stage of atherosclerosis is the maturation of monocytes which migrate into arteries to form foam cells or lipid-laden macrophages. Considerable evidence supports the hypothesis that risk of atherosclerosis is increased by chronic inflammatory conditions accompanying diseases such as rheumatoid arthritis and HIV, as well as general ageing, and that this risk is predicted by monocyte activation...
October 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29154950/murine-models-of-sleep-apnea-functional-implications-of-altered-macrophage-polarity-and-epigenetic-modifications-in-adipose-and-vascular-tissues
#18
Wojciech Trzepizur, Rene Cortese, David Gozal
Obstructive sleep apnea (OSA) is a highly prevalent disease across the lifespan, is characterized by chronic intermittent hypoxia and sleep fragmentation, and has been independently associated with substantial cardiometabolic morbidity. However, the reversibility of end-organ morbidity with treatment is not always apparent, suggesting that both tissue remodeling and epigenetic mechanisms may be operationally involved. Here, we review the cumulative evidence focused around murine models of OSA to illustrate the temporal dependencies of cardiometabolic dysfunction and its reversibility, and more particularly to discuss the critical contributions of tissue macrophages to adipose tissue insulin resistance and vascular atherogenesis...
November 15, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29154769/extracellular-lipids-accumulate-in-human-carotid-arteries-as-distinct-three-dimensional-structures-and-have-proinflammatory-properties
#19
Satu Lehti, Su D Nguyen, Ilya Belevich, Helena Vihinen, Hanna M Heikkilä, Rabah Soliymani, Reijo Käkelä, Jani Saksi, Matti Jauhiainen, Gregory A Grabowski, Outi Kummu, Sohvi Hörkkö, Marc Baumann, Perttu J Lindsberg, Eija Jokitalo, Petri T Kovanen, Katariina Öörni
Lipid accumulation is a key characteristic of advancing atherosclerotic lesions. Here we analyzed the ultrastructure of the accumulated lipids in endarterectomized human carotid atherosclerotic plaques using three-dimensional (3D) electron microscopy, a method never used in this context before. 3D-electron microscopy revealed intracellular lipid droplets and extracellular lipoprotein particles. The majority of the particles were aggregated and some connected to needle-shaped or sheet-like cholesterol crystals...
November 14, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29128090/crocus-sativus-l-aqueous-extract-reduces-atherogenesis-increases-atherosclerotic-plaque-stability-and-improves-glucose-control-in-diabetic-atherosclerotic-animals
#20
Ei Christodoulou, N P E Kadoglou, M Stasinopoulou, O A Konstandi, C Kenoutis, Z I Kakazanis, A Rizakou, N Kostomitsopoulos, G Valsami
BACKGROUND AND AIMS: We aimed to evaluate a possible atheroprotective effect of saffron aqueous extract (SFE), and its potential anti-inflammatory mechanisms, in apoE knockout (ApoE(-/-)) mice. METHODS: Fifty male, ApoE(-/-) mice, fed a high-fat diet (HFD) for 12 weeks, were randomized into 5 groups: (1) baseline group, euthanatized, without intervention, (2) three saffron groups, receiving HFD and 30,60,90 mg/kg/day of SFE, respectively, for four weeks, per os through gavage, after reconstitution in water for injection (WFI), (3) control group (COG), receiving daily HFD and the same volume of WFI (four weeks)...
November 1, 2017: Atherosclerosis
keyword
keyword
37161
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"