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https://www.readbyqxmd.com/read/27932239/the-therapeutic-effect-of-rosuvastatin-and-propylthiouracil-on-ameliorating-high-cholesterol-diet-induced-rabbit-aortic-atherosclerosis-and-stiffness
#1
Pao-Yuan Lin, Fan-Yen Lee, Christopher Glenn Wallace, Kuan-Hung Chen, Gour-Shenq Kao, Pei-Hsun Sung, Sarah Chua, Sheung-Fat Ko, Yung-Lung Chen, Shun-Cheng Wu, Hsueh-Wen Chang, Hon-Kan Yip, Pei-Lin Shao
BACKGROUND: We tested the hypothesis that arteriosclerosis-augmented aortic pulse wave velocity (PWV) and -impaired vasorelaxation were attenuated by rosuvastatin (Rosu) and propylthiouracil (PTU) therapy. METHODS AND RESULTS: Thirty-two New Zealand rabbits were equally divided into group 1 (sham-control), group 2 [high-cholesterol-diet (HCD) for 8weeks], group 3 [HCD-Rosu (20mg/kg/day administration after 4-week HFD for 4weeks)], and group 4 [HCD-PTU (0.1% PTU in drinking water), the treatment course as group 3]...
September 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27929421/ghrelin-attenuates-intestinal-barrier-dysfunction-following-intracerebral-hemorrhage-in-mice
#2
Yijun Cheng, Yongxu Wei, Wenlei Yang, Yu Cai, Bin Chen, Guoyuan Yang, Hanbing Shang, Weiguo Zhao
Intestinal barrier dysfunction remains a critical problem in patients with intracerebral hemorrhage (ICH) and is associated with poor prognosis. Ghrelin, a brain-gut peptide, has been shown to exert protection in animal models of gastrointestinal injury. However, the effect of ghrelin on intestinal barrier dysfunction post-ICH and its possible underlying mechanisms are still unknown. This study was designed to investigate whether ghrelin administration attenuates intestinal barrier dysfunction in experimental ICH using an intrastriatal autologous blood infusion mouse model...
December 6, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27928450/lipoprotein-associated-phospholipase-a2-myeloperoxidase-and-vascular-endothelial-growth-factor-predictors-of-high-vascular-risk-in-respiratory-bacterial-infections
#3
Seri A, Marta Ds, Madalan A, Popescu M, Tiglea Ai, Moldoveanu E
Objective. Respiratory bacterial infections are associated with important coagulation disturbances that amplify the pulmonary lesions and determine a more severe course of the disease. The aim of our study was to investigate the correlation between the evolution of the general clinical parameters and the occurrence of thrombotic events on one side, and plasma levels of selected proteins involved in inflammation and coagulation on the other side, with the intent to establish and to validate a laboratory test panel for the assessment of the vascular risk in patients with bacterial respiratory infections...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27925192/pathogenic-role-of-associated-adherent-invasive-escherichia-coli-in-crohn-s-disease
#4
Giuseppe Mazzarella, Angelica Perna, Angela Marano, Angela Lucariello, Vera Rotondi Aufiero, Raffaele Melina, Germano Guerra, Fabio Silvio Taccone, Gaetano Iaquinto, Antonio De Luca
Several lines of evidence suggest that adherent-invasive E. coli (AIEC) strains play an important role in Crohn's disease (CD). The objective of this study was to investigate the pathogenic role of two AIEC strains, LF82 and O83:H1, in CD patients. Organ cultures of colonic biopsies from patients were set up to assess the effects of LF82 and O83:H1 on the expression of CEACAM6, LAMP1, HLA-DR, ICAM1 by immunohistochemistry and of IL-8, IFNΓ and TNF-α genes by RT-PCR. Moreover, on Caco2 cells we analyzed the cell cycle, the expression of MGMT and DNMT1 genes and DNA damage induced by LF82 and O83:H1, by FACS, RT-PCR and DAPI staining, respectively...
December 7, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27923705/icam-5-telencephalin-is-a-functional-entry-receptor-for-enterovirus-d68
#5
Wei Wei, Haoran Guo, Junliang Chang, Yingzi Yu, Guanchen Liu, Nannan Zhang, Stephen H Willard, Shu Zheng, Xiao-Fang Yu
Enterovirus D68 (EV-D68) is a member of the Picornaviridae family. Although EV-D68-associated infection was once considered rare, it has been increasing in recent years. EV-D68 infection is most frequently associated with respiratory illness. However, it has also been implicated in a polio-like neurological disorder, acute flaccid myelitis. Although sialic acid has been implicated in EV-D68 entry, the existence of a protein receptor has yet to be clarified. Here we identify neuron-specific intercellular adhesion molecule 5 (ICAM-5/telencephalin) as a cellular receptor for sialic acid-dependent and -independent EV-D68 viruses...
November 9, 2016: Cell Host & Microbe
https://www.readbyqxmd.com/read/27923320/3d-co-culture-model-to-analyze-the-crosstalk-between-endothelial-and-smooth-muscle-cells
#6
Minu Karthika Ganesan, Richard Finsterwalder, Heide Leb, Ulrike Resch, Karin Neumüller, Rainer de Martin, Peter Petzelbauer
The response of blood vessels to physiological and pathological stimuli partly depends on the crosstalk between endothelial cells (EC) lining the luminal side and smooth muscle cells (SMC) building the inner part of the vascular wall. Thus, the in vitro analysis of the pathophysiology of blood vessels requires co-culture systems of EC and SMC. We have developed and validated a modified 3D sandwich co-culture (3D SW-CC) of EC and SMC employing open µ-Slides with a thin glass bottom allowing direct imaging. The culture dish comprises of an intermediate plate to minimize the meniscus resulting in homogenous cell distribution...
December 6, 2016: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/27920727/genetic-targeting-of-arginase-ii-in-mouse-prevents-renal-oxidative-stress-and-inflammation-in-diet-induced-obesity
#7
Ji Huang, Angana Rajapakse, Yuyan Xiong, Jean-Pierre Montani, François Verrey, Xiu-Fen Ming, Zhihong Yang
Obesity is associated with development and progression of chronic kidney disease (CKD). Recent evidence demonstrates that enhanced levels of the L-arginine:ureahydrolase, including the two isoenzymes arginase-I (Arg-I) and arginase-II (Arg-II) in vascular endothelial cells promote uncoupling of endothelial nitric oxide synthase (eNOS), leading to increased superoxide radical anion and decreased NO production thereby endothelial dysfunction. Arg-II but not Arg-I is abundantly expressed in kidney and the role of Arg-II in CKD is uncertain and controversial...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27918735/comparative-immunoexpression-of-icam-1-tgf-%C3%AE-1-and-ki-67-in-periapical-and-residual-cysts
#8
R Martins, L Armada, T-C Dos Santos, F-R Pires
BACKGROUND: This study compared the immunohistochemical expression of ki-67, transforming growth factor beta 1 (TGF-β1) and intercellular adhesion molecule-1 (ICAM-1) in inflammatory periapical cysts and residual cysts. MATERIAL AND METHODS: The study sample was composed by 25 periapical cysts and 25 residual cysts and immunohistochemical reactions were carried out using antibodies directed against ICAM-1, TGF-β1 and ki-67. Clinical, radiological, gross, histological and immunohistochemical data were tabulated for descriptive and comparative analysis using the SPSS software and differences were considered statistically significant when p<0...
December 6, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/27911915/marathon-race-affects-neutrophil-surface-molecules-role-of-inflammatory-mediators
#9
Vinicius Coneglian Santos, Ana Paula Renno Sierra, Rodrigo Oliveira, Kim Guimarães Caçula, César Miguel Momesso, Fabio Takeo Sato, Maysa Braga Barros Silva, Heloisa Helena Oliveira, Maria Elizabeth Pereira Passos, Diego Ribeiro de Souza, Olivia Santos Gondim, Marino Benetti, Adriana Cristina Levada-Pires, Nabil Ghorayeb, Maria Augusta Peduti Dal Molin Kiss, Renata Gorjão, Tânia Cristina Pithon-Curi, Maria Fernanda Cury-Boaventura
The fatigue induced by marathon races was observed in terms of inflammatory and immunological outcomes. Neutrophil survival and activation are essential for inflammation resolution and contributes directly to the pathogenesis of many infectious and inflammatory conditions. The aim of this study was to investigate the effect of marathon races on surface molecules related to neutrophil adhesion and extrinsic apoptosis pathway and its association with inflammatory markers. We evaluated 23 trained male runners at the São Paulo International Marathon 2013...
2016: PloS One
https://www.readbyqxmd.com/read/27907146/glycocalyx-degradation-induces-a-proinflammatory-phenotype-and-increased-leukocyte-adhesion-in-cultured-endothelial-cells-under-flow
#10
Karli K McDonald, Scott Cooper, Lisa Danielzak, Richard L Leask
Leukocyte adhesion to the endothelium is an early step in the pathogenesis of atherosclerosis. Effective adhesion requires the binding of leukocytes to their cognate receptors on the surface of endothelial cells. The glycocalyx covers the surface of endothelial cells and is important in the mechanotransduction of shear stress. This study aimed to identify the molecular mechanisms underlying the role of the glycocalyx in leukocyte adhesion under flow. We performed experiments using 3-D cell culture models, exposing human abdominal aortic endothelial cells to steady laminar shear stress (10 dynes/cm2 for 24 hours)...
2016: PloS One
https://www.readbyqxmd.com/read/27907087/prenylated-polyphenols-from-clusiaceae-and-calophyllaceae-with-immunomodulatory-activity-on-endothelial-cells
#11
Caroline Rouger, Sylvain Pagie, Séverine Derbré, Anne-Marie Le Ray, Pascal Richomme, Béatrice Charreau
Endothelial cells (ECs) are key players in inflammation and immune responses involved in numerous pathologies. Although attempts were experimentally undertaken to prevent and control EC activation, drug leads and probes still remain necessary. Natural products (NPs) from Clusiaceous and Calophyllaceous plants were previously reported as potential candidates to prevent endothelial dysfunction. The present study aimed to identify more precisely the molecular scaffolds that could limit EC activation. Here, 13 polyphenols belonging to 5 different chemical types of secondary metabolites (i...
2016: PloS One
https://www.readbyqxmd.com/read/27906544/lfa-1-icam-1-interaction-as-a-therapeutic-target-in-dry-eye-disease
#12
Stephen C Pflugfelder, Michael Stern, Steven Zhang, Amir Shojaei
Dry eye disease (DED) is a common ocular disorder associated with inflammation of the lacrimal gland and ocular surface. The interaction of the integrin lymphocyte function-associated antigen-1 (LFA-1) with its cognate ligand intercellular adhesion molecule-1 (ICAM-1) is known to have important roles in the interaction of a variety of cells involved in immune responses and inflammation, including those prominent in ocular surface inflammation. Lifitegrast, an LFA-1 antagonist that blocks binding of ICAM-1 to LFA-1, has recently been approved in the United States for the treatment of signs and symptoms of DED...
December 1, 2016: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27903586/microrna-125a-5p-alleviates-the-deleterious-effects-of-ox-ldl-on-multiple-functions-of-human-brain-microvessel-endothelial-cells
#13
Qunwen Pan, Xiaorong Liao, Hua Liu, Yan Wang, Yanfang Chen, Bin Zhao, Eric Lazartigues, Yi Yang, Xiaotang Ma
MicroRNA-125a-5p(miR-125a-5p)could participate in the pathogenesis of vascular diseases. In this study, we investigated the role of miR-125a-5p in oxidized low density lipoprotein (ox-LDL) induced functional changes in human brain microvessel endothelial cells (HBMEC). The reactive oxygen species (ROS) production, nitric oxide (NO) generation, senescence, apoptosis and functions of HBMEC were analyzed. For mechanism study, the epidermal growth factor receptor (EGFR)/ extracellular regulated protein kinases (ERK)/ p38 mitogen-activated protein kinase (p38 MAPK), and phosphatidylinositol-3-kinase (PI3K), serine/threonine kinase (Akt), endothelial nitric oxide synthase (eNOS), and p-Akt were analyzed...
November 30, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/27902740/extensive-characterization-and-comparison-of-endothelial-cells-derived-from-dermis-and-adipose-tissue-potential-use-in-tissue-engineering
#14
Hanneke N Monsuur, Ester M Weijers, Frank B Niessen, Amit Gefen, Pieter Koolwijk, Susan Gibbs, Lenie J van den Broek
Tissue-engineered constructs need to become quickly vascularized in order to ensure graft take. One way of achieving this is to incorporate endothelial cells (EC) into the construct. The adipose tissue stromal vascular fraction (adipose-SVF) might provide an alternative source for endothelial cells as adipose tissue can easily be obtained by liposuction. Since adipose-EC are now gaining more interest in tissue engineering, we aimed to extensively characterize endothelial cells from adipose tissue (adipose-EC) and compare them with endothelial cells from dermis (dermal-EC)...
2016: PloS One
https://www.readbyqxmd.com/read/27901489/membrane-bound-icam-1-contributes-to-the-onset-of-proinvasive-tumor-stroma-by-controlling-acto-myosin-contractility-in-carcinoma-associated-fibroblasts
#15
Stephanie Bonan, Jean Albrengues, Eloise Grasset, Sanya-Eduarda Kuzet, Nicolas Nottet, Isabelle Bourget, Thomas Bertero, Bernard Mari, Guerrino Meneguzzi, Cedric Gaggioli
Acto-myosin contractility in carcinoma-associated fibroblasts leads to assembly of the tumor extracellular matrix. The pro-inflammatory cytokine LIF governs fibroblast activation in cancer by regulating the myosin light chain 2 activity. So far, however, how LIF mediates cytoskeleton contractility remains unknown. Using phenotypic screening assays based on knock-down of LIF-dependent genes in fibroblasts, we identified the glycoprotein ICAM-1 as a crucial regulator of stroma fibroblast proinvasive matrix remodeling...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27900814/effects-of-intratracheal-exposure-of-2-chloroethyl-ethyl-sulfide-cees-on-the-activation-of-ccaat-enhancer-binding-protein-c-ebp-and-its-protection-by-antioxidant-liposome
#16
Somdutta Sinha Roy, Shyamali Mukherjee, Salil K Das
Exposure of 2-chloroethyl ethyl sulfide (CEES) to guinea pigs causes lung injury by infiltration of neutrophils in interstitial lung spaces. A unique MAPK-regulated transcription factor, C/EBP (CCAAT-enhancer-binding protein), regulates the expression of intracellular adhesion molecule-1 (ICAM-1), involved in recruiting neutrophils in lung. The present study was to determine if CEES exposure causes activation of C/EBP, in particular the predominant β-isoform and if so whether it can be prevented by intratracheal delivery of an antioxidant liposome containing N-acetyl cysteine and tocopherols...
November 30, 2016: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/27898103/glyoxalase-1-knockdown-in-human-aortic-endothelial-cells-effect-on-the-proteome-and-endothelial-function-estimates
#17
Bernd Stratmann, Britta Engelbrecht, Britta C Espelage, Nadine Klusmeier, Janina Tiemann, Thomas Gawlowski, Yvonne Mattern, Martin Eisenacher, Helmut E Meyer, Naila Rabbani, Paul J Thornalley, Diethelm Tschoepe, Gereon Poschmann, Kai Stühler
Methylglyoxal (MG), an arginine-directed glycating agent, is implicated in diabetic late complications. MG is detoxified by glyoxalase 1 (GLO1) of the cytosolic glyoxalase system. The aim was to investigate the effects of MG accumulation by GLO1-knockdown under hyperglycaemic conditions in human aortic endothelial cells (HAECs) hypothesizing that the accumulation of MG accounts for the deleterious effects on vascular function. SiRNA-mediated knockdown of GLO1 was performed and MG concentrations were determined...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27894808/protective-effect-of-betulinic-acid-on-early-atherosclerosis-in-diabetic-apolipoprotein-e-gene-knockout-mice
#18
Jung Joo Yoon, Yun Jung Lee, Byung Hyuk Han, Eun Sik Choi, Min Chul Kho, Ji Hun Park, You Mee Ahn, Hye Yoom Kim, Dae Gill Kang, Ho Sub Lee
Atherosclerosis, a chronic and progressive disease, is a leading cause of endothelial dysfunction, diabetes mellitus, hypertension, and hypercholesterolemia. Betulinic acid (BA), a pentacyclic triterpene, has been reported to have a variety of biological effects, including anti-inflammatory and immunomodulatory properties. This study was designed to determine whether BA could prevent atherosclerosis in diabetic apolipoprotein-E gene knockout (ApoE KO) mice. The mice were treated with BA for 12 weeks to examine its beneficial effects on atherosclerosis in ApoE KO mice...
November 25, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27894415/intercellular-adhesion-molecule-1-polymorphisms-k469e-and-g261r-and-susceptibility-to-vasculitis-and-rheumatoid-arthritis-a-meta-analysis
#19
Y H Lee, S-C Bae
The aim of this study was to determine whether intercellular adhesion molecule-1 (ICAM-1) polymorphisms are associated with susceptibility to vasculitis or rheumatoid arthritis (RA). Meta-analyses were performed to assess the associations between K469E and G241R polymorphisms of ICAM-1 and vasculitis or RA. A total of 12 studies on 1,368 patients and 1,922 controls, which comprised 8 vasculitis studies and 4 RA studies, were included in the meta-analysis. We found no significant association between vasculitis and K469E E allele among the various subjects (OR = 1...
October 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27892682/can-serum-icam-1-distinguish-pancreatic-cancer-from-chronic-pancreatitis
#20
amal mohamed, Yasmine Saad, Doaa Saleh, Rehab Elawady, Rasha Eletreby, Ahmad Khairalla, Eman Badr
Background and aim: Pancreatic cancer is the fourth leading cause of cancer-related death worldwide, with an overall 5-year survival of <5% mainly due to presence of advanced disease at time of diagnosis. Therefore development of valid biomarkers to diagnose pancreatic cancer in early stages is an urgent need. This study concerned the sensitivity and specificity of serum ICAM 1 versus CA 19-9 in differentiation between pancreatic cancer and healthy subjects and acohort of patients with chronic pancreatitis with a focus on assessing validity in diagnosis of early stages of pancreatic cancer...
January 10, 2016: Asian Pacific Journal of Cancer Prevention: APJCP
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