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https://www.readbyqxmd.com/read/28448865/glycolipids-from-spinach-suppress-lps-induced-vascular-inflammation-through-enos-and-nk-%C3%AE%C2%BAb-signaling
#1
Masakazu Ishii, Tatsuo Nakahara, Daisuke Araho, Juri Murakami, Masahiro Nishimura
Glycolipids are the major constituent of the thylakoid membrane of higher plants and have a variety of biological and pharmacological activities. However, anti-inflammatory effects of glycolipids on vascular endothelial cells have not been elucidated. Here, we investigated the effect of glycolipids extracted from spinach on lipopolysaccharides (LPS)-induced endothelial inflammation and evaluated the underlying molecular mechanisms. Treatment with glycolipids from spinach had no cytotoxic effects on cultured human umbilical vein endothelial cells (HUVECs) and significantly blocked the expression of LPS-induced interleukin (IL)-6, monocyte chemoattractant protein-1 (MCP-1), vascular cell adhesion molecule-1 (VCAM-1), and intracellular adhesion molecule-1 (ICAM-1) in them...
April 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28441794/reciprocal-interactions-of-leukemic-cells-with-bone-marrow-stromal-cells-promote-enrichment-of-leukemic-stell-cell-compartments-in-response-to-curcumin-and-daunorubicin
#2
Saeed Mohammadi, Mohsen Nikbakht, Seyed Mehdi Sajjadi, Fariba Rad, Bahram Chahardouli, Javid Sabour Takanlu, Shahrbano Rostami, Kamran Alimoghaddam, Ardeshir Ghavamzadeh, Seyed H Ghaffari
A predominant challenge in developing curative leukemia therapy is interactions of leukemic cells with the bone marrow stromal microenvironment. We aimed to investigate the role of stromal cells, such as bone marrow mesenchymal stromal cells (BMSCs) and osteoblasts (OBs), in curcumin (CUR) and daunorubicin (DNR) induced apoptosis of acute myeloid leukemia (AML) cells. We used KG1 and U937 as leukemia cell line models and treated them with CUR and DNR. The cells were then co-cultured with BMSCs or a combination of BMSCs and OBs as feeders...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441665/microrna-1185-promotes-arterial-stiffness-though-modulating-vcam-1-and-e-selectin-expression
#3
Haoyuan Deng, Zhenfeng Song, Huan Xu, Xinrui Deng, Qiao Zhang, Hongyu Chen, Yanjiao Wang, Ying Qin, Ying Li
BACKGROUND/AIMS: Atherosclerosis is the primary cause of cardiovascular ischaemic events; arterial stiffness is a characteristic of the atherosclerotic process. MicroRNAs (miRNAs) have been revealed as crucial modulators of atherosclerosis. However, the role of arterial stiffness-related miRNAs in the atherosclerotic process is still unclear. METHODS: Four hundred six participants from Northern China were enrolled in this study. Circulating miR-1185 and adhesion molecule levels were measured...
April 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28436294/overexpression-of-vla-4-in-glial-restricted-precursors-enhances-their-endothelial-docking-and-induces-diapedesis-in-a-mouse-stroke-model
#4
Anna Jablonska, Daniel J Shea, Suyi Cao, Jeff Wm Bulte, Miroslaw Janowski, Konstantinos Konstantopoulos, Piotr Walczak
The loss of oligodendrocytes after stroke is one of the major causes of secondary injury. Glial-restricted progenitors (GRPs) have remylenating potential after intraparenchymal cerebral transplantation. The intraarterial (IA) injection route is an attractive gateway for global brain delivery, but, after IA infusion, naive GRPs fail to bind to the cerebral vasculature. The aim of this study was to test whether overexpression of Very Late Antigen-4 (VLA-4) increases endothelial docking and cerebral homing of GRPs in a stroke model...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28434729/effects-of-intrauterine-infusion-of-escherichia-coli-lipopolysaccharide-on-uterine-mrna-gene-expression-and-peripheral-polymorphonuclear-leukocytes-in-jersey-cows-diagnosed-with-purulent-vaginal-discharge
#5
João G N Moraes, Luís G D Mendonça, Paula R B Silva, Alexandre A Scanavez, Klibs N Galvão, Michael A Ballou, Milli Worku, Ricardo C Chebel
The objectives of the current experiment were to investigate the effects of intrauterine treatment of cows with purulent vaginal discharge (PVD) using lipopolysaccharide (LPS) from Escherichia coli on uterine mRNA expression of genes related to inflammatory responses, peripheral polymorphonuclear leukocyte (PMN) function, hematological parameters, and blood concentrations of cortisol, haptoglobin, and progesterone (P4). Jersey cows (n = 3,084) were examined for PVD at 35 ± 6 d postpartum using the Metricheck device (Simcro, Hamilton, New Zealand)...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28433555/systemic-application-of-sirolimus-prevents-neointima-formation-not-via-a-direct-anti-proliferative-effect-but-via-its-anti-inflammatory-properties
#6
Jan-Marcus Daniel, Jochen Dutzmann, Hannes Brunsch, Johann Bauersachs, Rüdiger Braun-Dullaeus, Daniel G Sedding
BACKGROUND: Systemic treatment with sirolimus, as used for immunosuppression in transplant patients, results in markedly low rates of in-stent restenosis. Since the underlying mechanisms remain obscure, we aimed to determine the molecular and cellular effects of systemic sirolimus treatment on vascular remodeling processes. METHODS AND RESULTS: Systemic sirolimus treatment significantly reduced smooth muscle cell (SMC) proliferation 14days after wire-induced injury and neointima formation 28days after injury in C57BL/6 mice, while simultaneously impairing re-endothelialization...
March 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28432157/effect-of-interleukin-6-inhibition-on-coronary-microvascular-and-endothelial-function-in-myocardial-infarction
#7
Espen Holte, Ola Kleveland, Thor Ueland, Gabor Kunszt, Marte Bratlie, Kaspar Broch, Annika E Michelsen, Bjørn Bendz, Brage H Amundsen, Svend Aakhus, Jan Kristian Damås, Lars Gullestad, Pål Aukrust, Rune Wiseth
OBJECTIVE: Interleukin-6 (IL-6) is a driver of inflammation and associated endothelial cell activation in acute coronary syndromes. We evaluated the effect of the IL-6 receptor antagonist tocilizumab on coronary microvascular function and endothelial dysfunction measured by coronary flow reserve (CFR) and markers of endothelial cell activation in patients with non-ST-elevation myocardial infarction (NSTEMI). METHODS: This substudy was part of a two-centre, double-blind, randomised, placebo-controlled trial evaluating the effect of a single dose of tocilizumab in NSTEMI...
April 21, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28430714/ultrasound-molecular-imaging-of-inflammation-in-mouse-abdominal-aorta
#8
Shiying Wang, Sunil Unnikrishnan, Elizabeth B Herbst, Alexander L Klibanov, Frank William Mauldin, John A Hossack
OBJECTIVES: The aim of this study was to demonstrate a new clinically translatable ultrasound molecular imaging approach, modulated acoustic radiation force-based imaging, which is capable of rapid and reliable detection of inflammation as validated in mouse abdominal aorta. MATERIALS AND METHODS: Animal studies were approved by the Institutional Animal Care and Use Committee at the University of Virginia. C57BL/6 mice stimulated with tumor necrosis factor α, or fed with a high-fat diet, were used as inflammation (MInflammation) and diet-induced obesity (DIO) (MDIO) models, respectively...
April 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28429235/regulation-of-human-brain-microvascular-endothelial-cell-adhesion-and-barrier-functions-by-memantine
#9
Fei Wang, Zhirong Zou, Yi Gong, Dong Yuan, Xun Chen, Tao Sun
Vascular risk factors have been linked to cognitive decline and dementia in the elderly. Microvascular inflammation, especially of the endothelium, may contribute to the progression of neurodegenerative events in Alzheimer's disease (AD). Memantine, an uncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist, is a licensed drug used for the treatment of moderate to severe AD. However, little information is available regarding its anti-inflammatory effects on the endothelium. In this study, we investigated the effects of memantine on human brain microvascular endothelial dysfunction induced by the pro-inflammatory cytokine tumor necrosis factor-α (TNF-α)...
April 20, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28424824/resistin-and-ngal-are-associated-with-inflammatory-response-endothelial-activation-and-clinical-outcomes-in-sepsis
#10
Stephen P J Macdonald, Erika Bosio, Claire Neil, Glenn Arendts, Sally Burrows, Lisa Smart, Simon G A Brown, Daniel M Fatovich
OBJECTIVE AND DESIGN: Resistin and neutrophil gelatinase-associated lipocalin (NGAL) are upregulated in circulating leucocytes in sepsis, but the significance of this is uncertain. We evaluated associations between Resistin and NGAL with endothelial cell activation and clinical outcomes in a prospective observational study in the Emergency Department (ED). METHODS: Serum levels of Resistin, NGAL, inflammatory cytokines (IL-6, IL-10) and soluble endothelial adhesion molecules (VCAM-1, ICAM-1) were measured at defined time points up to 24 h...
April 19, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28420166/hypaphorine-attenuates-lipopolysaccharide-induced-endothelial-inflammation-via-regulation-of-tlr4-and-ppar-%C3%AE-dependent-on-pi3k-akt-mtor-signal-pathway
#11
Haijian Sun, Xuexue Zhu, Weiwei Cai, Liying Qiu
Endothelial lesion response to injurious stimuli is a necessary step for initiating inflammatory cascades in blood vessels. Hypaphorine (Hy) from different marine sources is shown to exhibit anti-inflammatory properties. However, the potential roles and possible molecular mechanisms of Hy in endothelial inflammation have yet to be fully clarified. We showed that Hy significantly inhibited the positive effects of lipopolysaccharide (LPS) on pro-inflammatory cytokines expressions, including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), monocyte chemoattractant protein 1 (MCP-1) and vascular cellular adhesion molecule-1 (VCAM-1), as well as induction of the phosphorylation of Akt and mTOR in HMEC-1 cells...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28415917/exercise-rehabilitation-immediately-following-ischemic-stroke-exacerbates-inflammatory-injury
#12
Fengwu Li, John T Pendy, Jessie N Ding, Changya Peng, Xiaorong Li, Jiamei Shen, Sainan Wang, Xiaokun Geng
OBJECTIVES: The rehabilitative benefits of physical exercise after stroke appear to be contingent upon exercise initiation timing. The present study assessed the hypothesis that very early post-stroke exercise would amplify cellular stress and increases expression of pro-inflammatory mediators, while exercise initiated later would limit the inflammation associated with cerebral ischemia/reperfusion injury. METHODS: Adult rats were subjected to middle cerebral artery occlusion and subsequently assigned to one of seven groups: one sham injury control group, three stroke groups subjected to exercise initiated after 6, 24 hours, or 3 days of reperfusion, and three stroke groups not subjected to exercise...
April 17, 2017: Neurological Research
https://www.readbyqxmd.com/read/28414311/a-self-sustained-loop-of-inflammation-driven-inhibition-of-beige-adipogenesis-in-obesity
#13
Kyoung-Jin Chung, Antonios Chatzigeorgiou, Matina Economopoulou, Ruben Garcia-Martin, Vasileia I Alexaki, Ioannis Mitroulis, Marina Nati, Janine Gebler, Tjalf Ziemssen, Susan E Goelz, Julia Phieler, Jong-Hyung Lim, Katia P Karalis, Thalia Papayannopoulou, Matthias Blüher, George Hajishengallis, Triantafyllos Chavakis
In obesity, inflammation of white adipose tissue (AT) is associated with diminished generation of beige adipocytes ('beige adipogenesis'), a thermogenic and energy-dissipating function mediated by beige adipocytes that express the uncoupling protein UCP1. Here we delineated an inflammation-driven inhibitory mechanism of beige adipogenesis in obesity that required direct adhesive interactions between macrophages and adipocytes mediated by the integrin α4 and its counter-receptor VCAM-1, respectively; expression of the latter was upregulated in obesity...
April 17, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28410617/treatment-with-high-dose-n-3-pufas-has-no-effect-on-platelet-function-coagulation-metabolic-status-or-inflammation-in-patients-with-atherosclerosis-and-type-2-diabetes
#14
Malgorzata Poreba, Magdalena Mostowik, Aleksander Siniarski, Renata Golebiowska-Wiatrak, Krzysztof Piotr Malinowski, Maciej Haberka, Ewa Konduracka, Jadwiga Nessler, Anetta Undas, Grzegorz Gajos
BACKGROUND: Despite numerous studies on cardioprotective effects of omega-3 polyunsaturated fatty acids (n-3 PUFAs), there is limited evidence for n-3 PUFA-mediated effects, especially at its higher dose, on cardiovascular risk in patients with type 2 diabetes (DM2) and established atherosclerosis. PURPOSE: To investigate the effect of daily treatment with a higher dose (2 g) of n-3 PUFAs on platelet function, coagulation parameters, fibrin clot properties, markers of systemic inflammation and metabolic status, in patients with atherosclerotic vascular disease and DM2 who receive optimal medical therapy...
April 14, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28407719/anti-inflammatory-activity-of-clove-eugenia-caryophyllata-essential-oil-in-human-dermal-fibroblasts
#15
Xuesheng Han, Tory L Parker
CONTEXT: Clove (Eugenia caryophyllata Thunb. [Myrtaceae]) essential oil (CEO) has been shown to possess antimicrobial, antifungal, antiviral, antioxidant, anti-inflammatory and anticancer properties. However, few studies have focused on its topical use. OBJECTIVE: We investigated the biological activity of a commercially available CEO in a human skin disease model. MATERIALS AND METHODS: We evaluated the effect of CEO on 17 protein biomarkers that play critical roles in inflammation and tissue remodelling in a validated human dermal fibroblast system, which was designed to model chronic inflammation and fibrosis...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28406580/low-glucose-induces-mitochondrial-reactive-oxygen-species-via-fatty-acid-oxidation-in-bovine-aortic-endothelial-cells
#16
Nobuhiro Kajihara, Daisuke Kukidome, Kiminori Sada, Hiroyuki Motoshima, Noboru Furukawa, Takeshi Matsumura, Takeshi Nishikawa, Eiichi Araki
AIMS/INTRODUCTION: Overproduction of reactive oxygen species (ROS) in endothelial cells (ECs) plays a pivotal role in endothelial dysfunction. Mitochondrial ROS (mtROS) is one of the key players in the pathogenesis of diabetic vascular complications. Hypoglycemia is linked to increased ROS production and vascular events; however, the underlying mechanisms remain unclear. In this study, we aimed to determine whether and how low glucose (LG) mediates mtROS generation in ECs and to examine the impact of LG-induced mtROS on endothelial dysfunction...
April 12, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28406245/nanomechanics-of-the-endothelial-glycocalyx-contribute-to-na-induced-vascular-inflammation
#17
Florian Schierke, Margot J Wyrwoll, Martin Wisdorf, Leon Niedzielski, Martina Maase, Tobias Ruck, Sven G Meuth, Kristina Kusche-Vihrog
High dietary salt (NaCl) is a known risk factor for cardiovascular pathologies and inflammation. High plasma Na(+) concentrations (high Na(+)) have been shown to stiffen the endothelial cortex and decrease nitric oxide (NO) release, a hallmark of endothelial dysfunction. Here we report that chronic high Na(+) damages the endothelial glycocalyx (eGC), induces release of inflammatory cytokines from the endothelium and promotes monocyte adhesion. Single cell force spectroscopy reveals that high Na(+) enhances vascular adhesion protein-1 (VCAM-1)-dependent adhesion forces between monocytes and endothelial surface, giving rise to increased numbers of adherent monocytes on the endothelial surface...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28400700/serum-retinol-binding-protein-induced-endothelial-inflammation-is-mediated-through-the-activation-of-toll-like-receptor-4
#18
Mei Du, Ashley Martin, Franklin Hays, Jennifer Johnson, Rafal A Farjo, Krysten M Farjo
PURPOSE: Elevation of serum retinol-binding protein 4 (RBP4) induces inflammation in primary human retinal microvascular endothelial cells (HRECs) via a retinol-independent mechanism; thus, it may play a causative role in the development and progression of vascular lesions in diabetic retinopathy (DR). Since HRECs do not express the classical RBP4 receptor, stimulated by retinoic acid gene 6 (STRA6), this study focuses on identifying the endothelial cell receptor and signaling that mediate RBP4-induced inflammation...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28399171/association-between-arsenic-exposure-and-soluble-thrombomodulin-a-cross-sectional-study-in-bangladesh
#19
M M Hasibuzzaman, Shakhawoat Hossain, Md Shofikul Islam, Atiqur Rahman, Adiba Anjum, Faruk Hossain, Nayan Chandra Mohanto, Md Rezaul Karim, Md Mominul Hoque, Zahangir Alam Saud, Hideki Miyataka, Seiichiro Himeno, Khaled Hossain
Chronic exposure to arsenic is associated with increased morbidity and mortality from cardiovascular disease (CVD); however, plausible biomarker for early prediction and the underlying mechanism of arsenic-related CVD have not yet been clearly understood. Endothelial dysfunction plays a central role in the development of CVD. We hypothesized that endothelial damage or dysfunction is an important aspect and may be an early event of arsenic-related CVD. Soluble thrombomodulin (sTM) in serum is thought to be a specific and stable marker for endothelial damage or dysfunction...
2017: PloS One
https://www.readbyqxmd.com/read/28394335/progenitor-t-cell-differentiation-from-hematopoietic-stem-cells-using-delta-like-4-and-vcam-1
#20
Shreya Shukla, Matthew A Langley, Jastaranpreet Singh, John M Edgar, Mahmood Mohtashami, Juan Carlos Zúñiga-Pflücker, Peter W Zandstra
The molecular and cellular signals that guide T-cell development from hematopoietic stem and progenitor cells (HSPCs) remain poorly understood. The thymic microenvironment integrates multiple niche molecules to potentiate T-cell development in vivo. Recapitulating these signals in vitro in a stromal cell-free system has been challenging and limits T-cell generation technologies. Here, we describe a fully defined engineered in vitro niche capable of guiding T-lineage development from HSPCs. Synergistic interactions between Notch ligand Delta-like 4 and vascular cell adhesion molecule 1 (VCAM-1) were leveraged to enhance Notch signaling and progenitor T-cell differentiation rates...
May 2017: Nature Methods
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