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https://www.readbyqxmd.com/read/28076855/microrna-126-reduces-blood-retina-barrier-breakdown-via-the-regulation-of-vcam-1-and-bcl2l11-in-ischemic-retinopathy
#1
Xia Bai, Junpeng Luo, Xiaofeng Zhang, Jingjing Han, Zhaoyue Wang, Jingcheng Miao, Yanyan Bai
To evaluate the role of microRNA-126 (miR-126) in maintaining the integrity of the blood-retina barrier (BRB), we established a mouse model of oxygen-induced retinopathy (OIR) and measured the retinal levels of miR-126 using recombinant plasmid pCMV-MIR or pCMV-MIR-126 intravitreal injections. We also detected VCAM-1 and BCL2L11 levels. Retinal vaso-obliteration, VCAM-1 localization on retinal endothelial cells, the blood-retina vascular permeability or albumin leakage in retinas, TUNEL histology, Evans blue assays, or Western blotting for detecting albumin or tight junction levels in the retina was performed...
January 12, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28074914/hydroxysafflor-yellow-a-attenuates-the-expression-of-inflammatory-cytokines-in-acute-soft-tissue-injury
#2
Fang Dong, Changjiang Xue, Yu Wang, Yuanyuan Peng, Yadan Zhang, Ming Jin, Baoxia Zang
We examined the effect of hydroxysafflor yellow A (HSYA) on the inflammatory response to strike-induced acute soft tissue injury in rats. Soft tissue injury was induced in rat leg muscles using a strike hammer, followed by intraperitoneal administration of HSYA at 16, 32, or 64 mg/kg. After 24 h, the rats were anaesthetized, blood and muscle samples were taken. Plasma levels of interleukin (IL)-6, IL-1β, and tumour necrosis factor (TNF)-αwere measured by enzyme-linked immunosorbent assay. Total RNA and protein were isolated from muscle tissue to determine the mRNA levels of IL-6, IL-1β, TNF-α, vascular cell adhesion molecule (VCAM)-1, and intercellular adhesion molecule (ICAM)-1, and the protein level of phosphorylated p38 mitogen-activated protein kinase (MAPK)...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28069582/human-apolipoprotein-a-i-exerts-a-prophylactic-effect-on-high-fat-diet-induced-atherosclerosis-via-inflammation-inhibition-in-a-rabbit-model
#3
Jiyang Li, Weina Wang, Lei Han, Meiqing Feng, Hui Lu, Li Yang, Xiangxiang Hu, Si Shi, Shanshan Jiang, Qian Wang, Li Ye
Apolipoprotein A-I (apoA-I) is the major functional protein fraction of high-density lipoprotein. The prophylactic effect and mechanism of human apoA-I on atherosclerosis (AS) were investigated in a high-fat diet-induced AS rabbit model. The rabbits were injected with apoA-I once a week while fed high-fat diet for 20 weeks. Our results showed that apoA-I could raise the serum level of high-density lipoprotein-cholesterol and reduce those of lipid total cholesterol, triglyceride, and low-density lipoprotein-cholesterol in AS rabbits...
January 8, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28069066/anti-inflammatory-effect-of-resveratrol-in-human-coronary-arterial-endothelial-cells-via-induction-of-autophagy-implication-for-the-treatment-of-kawasaki-disease
#4
Fu-Chen Huang, Ho-Chang Kuo, Ying-Hsien Huang, Hong-Ren Yu, Sung-Chou Li, Hsing-Chun Kuo
BACKGROUND: Kawasaki disease (KD) is an acute febrile vasculitis in childhood, which is the leading cause of acquired heart disease in children. If untreated, KD can result in coronary aneurysms in 25% of patients, and even under intravenous immunoglobulin (IVIG) treatment, 10-20% of children will have IVIG resistance and increased risk of developing coronary arteritis complication. Additional therapies should be explored to decrease the incidence of coronary artery lesions and improve the prognosis in KD...
January 9, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28068281/pathophysiological-role-of-adiponectin-leptin-and-asymmetric-dimethylarginine-in-the-process-of-atherosclerosis
#5
Daniela Iv Koleva, Maria M Orbetzova, Julia G Nikolova, Tanya I Deneva
Adipose tissue is recognized as a rich source of proinflammatory mediators that may directly contribute to vascular injury, insulin resistance, and atherogenesis. Many studies have shown that adiponectin has antiatherogenic and anti-inflammatory properties. Adiponectin acts not only as a factor increasing insulin sensitivity, and the protective effect may result from its ability to suppress production of proinflammatory cytokines. It negatively regulates the expression of TNF-alpha and C-reactive protein (CRP) in adipose tissue; reduces expression of vascular and intracellular adhesion molecules (VCAM-1, ICAM-1), E-selectin, interleukin-8 (IL-8)...
December 1, 2016: Folia Medica
https://www.readbyqxmd.com/read/28066794/altered-monocyte-and-endothelial-cell-adhesion-molecule-expression-is-linked-to-vascular-inflammation-in-human-immunodeficiency-virus-infection
#6
Manjusha Kulkarni, Emily Bowman, Janelle Gabriel, Taylor Amburgy, Elizabeth Mayne, David A Zidar, Courtney Maierhofer, Abigail Norris Turner, Jose A Bazan, Susan L Koletar, Michael M Lederman, Scott F Sieg, Nicholas T Funderburg
BACKGROUND: Human immunodeficiency virus (HIV)-infected individuals have increased risk for vascular thrombosis, potentially driven by interactions between activated leukocytes and the endothelium. METHODS: Monocyte subsets (CD14(+)CD16(-), CD14(+)CD16(+), CD14(Dim)CD16(+)) from HIV negative (HIV(-)) and antiretroviral therapy-treated HIV positive (HIV(+)) participants (N = 19 and 49) were analyzed by flow cytometry for adhesion molecule expression (lymphocyte function-associated antigen 1 [LFA-1], macrophage-1 antigen [Mac-1], CD11c/CD18, very late antigen [VLA]-4) and the fractalkine receptor (CX3CR1); these receptors recognize ligands (intercellular adhesion molecules [ICAMs], vascular cell adhesion molecule [VCAM]-1, fractalkine) on activated endothelial cells (ECs) and promote vascular migration...
October 2016: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28061467/cytological-study-on-the-regulation-of-lymphocyte-homing-in-the-chicken-spleen-during-lps-stimulation
#7
Qian Zhang, Yasir Waqas, Ping Yang, Xuejing Sun, Yi Liu, Nisar Ahmed, Bing Chen, Quanfu Li, Lisi Hu, Yufei Huang, Hong Chen, Bing Hu, Qiusheng Chen
The immune function of the chicken spleen depends on its different compartments of red and white pulps, but little is known about the mechanism underlying lymphocyte homing towards the different compartments. In the present study, the role of lymphocyte homing in the chicken spleen was investigated during lipopolysaccharide (LPS) stimulation. Morphological analysis demonstrated the cuboidal endothelial cells of the splenic sheathed capillary facilitated the passage of lymphocyte homing to the chicken spleen...
January 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28044245/mri-detection-of-endothelial-cell-inflammation-using-targeted-superparamagnetic-particles-of-iron-oxide-spio
#8
Joyce M S Chan, Maggie S H Cheung, Richard G J Gibbs, Kishore K Bhakoo
BACKGROUND: There is currently no clinical imaging technique available to assess the degree of inflammation associated with atherosclerotic plaques. This study aims to develop targeted superparamagnetic particles of iron oxide (SPIO) as a magnetic resonance imaging (MRI) probe for detecting inflamed endothelial cells. METHODS: The in vitro study consists of the characterisation and detection of inflammatory markers on activated endothelial cells by immunocytochemistry and MRI using biotinylated anti-P-selectin and anti-VCAM-1 (vascular cell adhesion molecule 1) antibody and streptavidin conjugated SPIO...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28035003/a-quininib-analogue-and-cysteinyl-leukotreine-receptor-antagonist-inhibits-vegf-independent-angiogenesis-and-exerts-an-additive-anti-angiogenic-response-with-bevacizumab
#9
Clare T Butler, Alison L Reynolds, Miriam Tosetto, Eugene T Dillon, Patrick Guiry, Gerard Cagney, Jacintha O'Sullivan, Breand Aacuten N Kennedy
Excess blood vessel growth contributes to the pathology of metastatic cancers and age-related retinopathies. Despite development of improved treatments, these conditions are associated with high economic costs and drug resistance. Bevacizumab (Avastin®), a monoclonal antibody against vascular endothelial growth factor (VEGF) is used clinically to treat certain types of metastatic cancers. Unfortunately, many patients do not respond or inevitably become resistant to bevacizumab, highlighting the need for more effective anti-angiogenic drugs with novel mechanisms of action...
December 29, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28034277/the-two-faces-of-interleukin-17a-in-atherosclerosis-interleukin-17a-and-atherosclerosis
#10
Mohammadreza Akhavanpoor, Hamidreza Akhavanpoor, Christian A Gleissner, Susanne Wangler, Andreas O Doesch, Hugo A Katus, Christian Erbel
A complex network of different cytokines and chemokines modulate atherosclerosis, a chronic inflammatory disease. Interleukin-17A (IL-17A) is expressed by different leukocyte subsets such as CD4+IL-17+ T cells (Th17), γδ T cells, natural killer cells, natural killer T cells, and neutrophils. IL-17A plays an important role in host defense and is involved in the pathology of different autoimmune and inflammatory diseases. Recent studies demonstrate an association of IL-17A with atherosclerosis. IL-17A seems to have primarily pro-inflammatory effects in atherogenesis, although there are partially controversial results in the literature...
December 29, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/28032527/bioreactivity-of-stent-material-activation-of-platelets-coagulation-leukocytes-and-endothelial-cell-dysfunction-in-vitro
#11
Veronique Ollivier, Caroline Roques, Nicolas Receveur, Matthias Gratz, Laurent Feldman, Didier Letourneur, Christian Gachet, Pierre H Mangin, Martine Jandrot-Perrus
Outcome of patients with coronary artery disease has been significantly improved by percutaneous coronary interventions with stent implantation. However, despite progress made on devices and antithrombotic treatments, stent thrombosis remains an important issue because of serious adverse consequences. Several mechanisms are assumed to favor stent thrombosis as platelet aggregation, fibrin formation, defective healing and local inflammation. The objective of this study was to evaluate in vitro the thrombogenicity, proinflammatory properties and healing capacities of cobalt-chromium (CoCr), an alloy commonly used for cardiovascular implants...
December 29, 2016: Platelets
https://www.readbyqxmd.com/read/28030939/evaluation-of-vcam-1-and-icam-1-concentration-and-values-of-global-tests-concerning-the-coagulation-system-of-patients-suffering-from-subarachnoid-haemorrage
#12
Abu-Sitta Al-Drawi, Michał Wiciński, Grzegorz Grześk, Katarzyna Szadujkis-Szadurska, Elżbieta Grześk, Mateusz Maciej Węclewicz, Agnieszka Michalska, Anna Czeczuk, Elżbieta Huk-Wieliczuk
INTRODUCTION: The term 'subarachnoid haemorrhage' (SAH) stands for bleeding into the subarachnoid space, regardless of its source. It may be of primary character when the source of bleeding is situated within the subarachnoid space. Subarachnoid haemorrhage is often described as spontaneous bleeding, mainly in order to differentiate it from post-traumatic bleeding. OBJECTIVE: The aim of the study was to evaluate the concentration of ICAM-1 and VCAM-1 in the blood of patients in the early phase following subarachnoid haemorrhage in terms of searching for markers useful in subarachnoid bleeding diagnostics and monitoring a patient's clinical state...
23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28027722/celastrol-suppresses-expression-of-adhesion-molecules-and-chemokines-by-inhibiting-jnk-stat1-nf-%C3%AE%C2%BAb-activation-in-poly-i-c-stimulated-astrocytes
#13
Soo Yeon An, Gi Soo Youn, Hyejin Kim, Soo Young Choi, Jinseu Park
In the central nervous system, viral infection can induce inflammation by up-regulating pro-inflammatory mediators that contribute to enhanced infiltration of immune cells into the central nervous areas. Celastrol is known to exert various regulatory functions, including anti-microbial activities. In this study, we investigated the regulatory effects and the mechanisms of action of celastrol against astrocytes activated with polyinosinic-polycytidylic acid (poly(I:C)), a synthetic dsRNA, as a model of pro-inflammatory mediated responses...
September 2, 2016: BMB Reports
https://www.readbyqxmd.com/read/28013300/notch4-signaling-pathway-of-endothelial-progenitor-cells-in-a-kawasaki-disease-model-induced-by-lactobacillus-casei-cell-wall-extract
#14
Huafeng Wang, Yuanyuan Xia, Songling Fu, Wei Wang, Chunhong Xie, Yiying Zhang, Fangqi Gong
The Notch4 signaling pathway of endothelial progenitor cells (EPCs) may play a crucial role in Kawasaki disease (KD). We investigated the proliferation, adhesion, migration, angiogenesis, and expression levels of Notch4, recombination signal-binding protein-Jκ (RBP-Jκ), P-selectin, and vascular cell adhesion molecule-1 (VCAM-1) of bone marrow (BM) EPCs in a KD model induced by Lactobacillus casei cell wall extract. The numbers of BM EPCs decreased significantly in the KD models. The Notch4 expression level on the EPC surface was higher in the KD models than in the controls...
December 24, 2016: Journal of Vascular Research
https://www.readbyqxmd.com/read/28000367/cell-adhesive-peptides-functionalized-on-cocr-alloy-stimulate-endothelialization-and-prevent-thrombogenesis-and-restenosis
#15
Maria Isabel Castellanos, Jordi Guillem-Marti, Carlos Mas-Moruno, Maribel Díaz-Ricart, Ginés Escolar, Maria Pau Ginebra, Francisco Javier Gil, Marta Pegueroles, Jose María Manero
Immobilization of bioactive peptide sequences on CoCr surfaces is an effective route to improve endothelialization, which is of great interest for cardiovascular stents. In this work, we explored the effect of physical and covalent immoblization of RGDS, YIGSR and their equimolar combination peptides on endothelial cells (EC) and smooth muscle cell (SMC) adhesion and on thrombogenicity. We extensively investigated using RT-qPCR, the expression by ECs cultured on functionalised CoCr surfaces of different genes...
December 21, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27994710/serum-from-varicose-patients-induces-senescence-related-dysfunction-of-vascular-endothelium-generating-local-and-systemic-proinflammatory-conditions
#16
Justyna Mikuła-Pietrasik, Paweł Uruski, Krzysztof Aniukiewicz, Patrycja Sosińska, Zbigniew Krasiński, Andrzej Tykarski, Krzysztof Książek
Although the role of endothelium in varicose vein development is indisputable, the effect of the pathology on biological properties of endothelial cells remains unclear. Here we examined if the presence of varicose veins affects senescence of endothelial cells (HUVECs) and, if so, what will be the local and systemic outcome of this effect. Experiments showed that HUVECs subjected to serum from varicose patients display improved proliferation, increased expression of senescence marker, SA-β-Gal, and increased generation of reactive oxygen species (ROS), as compared with serum from healthy donors...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27993857/simvastatin-attenuates-endothelial-activation-through-15-epi-lipoxin-a4-production-in-murine-chronic-chagas-cardiomyopathy
#17
Fabiola González-Herrera, Allysson Cramer, Pollyana Pimentel, Christian Castillo, Ana Liempi, Ulrike Kemmerling, Fabiana S Machado, Juan D Maya
Current treatments for chronic Chagas cardiomyopathy, a disease with high mortality rates and caused by the protozoan Trypanosoma cruzi, are unsatisfactory. Myocardial inflammation, including endothelial activation, is responsible for the structural and functional damage seen in the chronic phase. The clinical efficacy of benznidazole could be improved by decreasing chronic inflammation. Statins, which have anti-inflammatory properties, may improve the action of benznidazole. Herein, the action of simvastatin in a murine model of chronic Chagas cardiomyopathy and the link with the production of the pro-resolving eicosanoid 15-epi-lipoxin A4, produced by 5-lipoxygenase, are evaluated...
December 19, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27989579/plasma-palmitoylethanolamide-pea-as-a-potential-biomarker-for-impaired-coronary-function
#18
Alessandra Quercioli, Federico Carbone, Aldo Bonaventura, Luca Liberale, Zoltan Pataky, Aurélien Thomas, Sébastien Lenglet, Estelle Lauer, Alain Golay, Franco Dallegri, Vincenzo Di Marzo, Thomas H Schindler, Fabrizio Montecucco
BACKGROUND: Among endocannabinoid (EC)-related mediators, Oleoyl-ethanolamide (OEA) and Palmitoyl-ethanolamide (PEA), two endogenous PPARα agonists with lipolytic and anti-inflammatory action, respectively, are being actively investigated. Here, we assessed the potential association between plasma levels of PEA and OEA and coronary function in a cohort including normal, overweight, obese, and morbidly obese (MOB) individuals. METHODS: Myocardial perfusion and endothelium-related myocardial blood flow (MBF) responses to cold pressor test (CPT) and during pharmacological vasodilation with dipyridamole were measured with (13)N-ammonia positron emission tomography/computed tomography...
December 13, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27986128/high-thyroid-stimulating-hormone-levels-increase-proinflammatory-and-cardiovascular-markers-in-patients-with-extreme-obesity
#19
Jaime Héctor Gómez-Zamudio, Victoria Mendoza-Zubieta, Aldo Ferreira-Hermosillo, Marío Antonio Molina-Ayala, Adán Valladares-Sálgado, Fernando Suárez-Sánchez, Jose de Jesús Peralta-Romero, Miguel Cruz
BACKGROUND AND AIMS: Obesity is an important health problem worldwide and many studies have suggested a relationship between obesity and thyroid function, with controversial results. Interestingly, high TSH levels have been involved with the presence of inflammatory state and risk for developing cardiovascular diseases in hypothyroid and obese patients. The aim in this work was to determine the prevalence of hypothyroidism in patients with extreme obesity and to determine whether their TSH levels were related to increased serum levels of inflammatory and cardiovascular markers...
August 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27986123/effects-of-castanospermine-on-inflammatory-response-in-a-rat-model-of%C3%A2-experimental-severe-acute-pancreatitis
#20
Yu-Pu Hong, Chen Chen, Wen-Yi Guo, Liang Zhao, Fang-Chao Mei, Ming-Wei Xiang, Wei-Xing Wang
BACKGROUND AND AIMS: Acute pancreatitis (AP) is an acute inflammatory disorder characterized by autodigestion of pancreatic tissue resulting in local pancreatic injury or systemic inflammatory response. Castanospermine (CAST) is an alkaloid from the Castanospermum australe, known as an anti-inflammatory agent and immunosuppressant in animal experiments. However, whether CAST can attenuate AP remains unclear. This study investigated the effects of CAST on sodium taurocholate (STC)-induced severe acute pancreatitis (SAP) in rats and the pertinent mechanism...
August 2016: Archives of Medical Research
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