scholarly journals Effects of Antioxidant Components of AREDS Vitamins and Zinc Ions on Endothelial Cell Activation: Implications for Macular Degeneration

2012 ◽  
Vol 53 (2) ◽  
pp. 1041 ◽  
Author(s):  
Shemin Zeng ◽  
Jasmine Hernández ◽  
Robert F. Mullins
Keyword(s):  
Endothelial Cell ◽  
Macular Degeneration ◽  
Cell Activation ◽  
Zinc Ions ◽  
Endothelial Cell Activation

scholarly journals Platelet disturbances correlate with endothelial cell activation in uncomplicated Plasmodium vivax malaria

2020 ◽  
Vol 14 (7) ◽  
pp. e0007656
Author(s):  
João Conrado Khouri Dos-Santos ◽  
João Luiz Silva-Filho ◽  
Carla C. Judice ◽  
Ana Carolina Andrade Vitor Kayano ◽  
Júlio Aliberti ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Plasmodium Vivax ◽  
Vivax Malaria ◽  
Cell Activation ◽  
Endothelial Cell Activation ◽  
Plasmodium Vivax Malaria

scholarly journals Signs of sympathetic and endothelial cell activation in the skin of patients with restless legs syndrome

2021 ◽  
Author(s):  
Melanie Bergmann ◽  
Anna Heidbreder ◽  
Ambra Stefani ◽  
Cecilia Raccagni ◽  
Elisabeth Brandauer ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Restless Legs Syndrome ◽  
Cell Activation ◽  
Endothelial Cell Activation ◽  
Restless Legs

OR17 Heme oxygenase-1 modulates HLA class I antibody-dependent endothelial cell activation

2015 ◽  
Vol 76 ◽  
pp. 15
Author(s):  
Eva Zilian ◽  
Hendry Saragih ◽  
Oliver Hiller ◽  
Abid Aljabri ◽  
Constanca Figueiredo ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Heme Oxygenase ◽  
Cell Activation ◽  
Hla Class I ◽  
Class I ◽  
Heme Oxygenase 1 ◽  
Endothelial Cell Activation

scholarly journals Dengue Virus Induces the Expression and Release of Endocan from Endothelial Cells by an NS1–TLR4-Dependent Mechanism

2021 ◽  
Vol 9 (6) ◽  
pp. 1305
Author(s):  
Carlos Alonso Domínguez-Alemán ◽  
Luis Alberto Sánchez-Vargas ◽  
Karina Guadalupe Hernández-Flores ◽  
Andrea Isabel Torres-Zugaide ◽  
Arturo Reyes-Sandoval ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Mrna Expression ◽  
Cell Lines ◽  
Cell Activation ◽  
Dengue Infection ◽  
Elevated Serum ◽  
Fold Increase ◽  
Endothelial Cell Activation ◽  
Stimulation Of

A common hallmark of dengue infections is the dysfunction of the vascular endothelium induced by different biological mechanisms. In this paper, we studied the role of recombinant NS1 proteins representing the four dengue serotypes, and their role in promoting the expression and release of endocan, which is a highly specific biomarker of endothelial cell activation. We evaluated mRNA expression and the levels of endocan protein in vitro following the stimulation of HUVEC and HMEC-1 cell lines with recombinant NS1 proteins. NS1 proteins increase endocan mRNA expression 48 h post-activation in both endothelial cell lines. Endocan mRNA expression levels were higher in HUVEC and HMEC-1 cells stimulated with NS1 proteins than in non-stimulated cells (p < 0.05). A two-fold to three-fold increase in endocan protein release was observed after the stimulation of HUVECs or HMEC-1 cells with NS1 proteins compared with that in non-stimulated cells (p < 0.05). The blockade of Toll-like receptor 4 (TLR-4) signaling on HMEC-1 cells with an antagonistic antibody prevented NS1-dependent endocan production. Dengue-infected patients showed elevated serum endocan levels (≥30 ng/mL) during early dengue infection. High endocan serum levels were associated with laboratory abnormalities, such as lymphopenia and thrombocytopenia, and are associated with the presence of NS1 in the serum.

scholarly journals Experimental endotoxemia in humans: analysis of cytokine release and coagulation, fibrinolytic, and complement pathways

Blood ◽  
1990 ◽  
Vol 76 (12) ◽  
pp. 2520-2526 ◽  
Author(s):  
SJ van Deventer ◽  
HR Buller ◽  
JW ten Cate ◽  
LA Aarden ◽  
CE Hack ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Plasminogen Activator ◽  
Cell Activation ◽  
Plasminogen Activator Inhibitor ◽  
Contact System ◽  
Initial Increase ◽  
Cytokine Release ◽  
Endothelial Cell Activation ◽  
System A ◽  
Von Willebrand

Abstract Endotoxemia was evoked by bolus injection of Escherichia coli endotoxin (2 ng/kg body weight) in six healthy subjects to investigate the early kinetics of cytokine release in relation to the development of clinical and hematologic abnormalities frequently seen in gram-negative septicemia. The plasma concentration of tumor necrosis factor (TNF) increased markedly after 30 to 45 minutes, and reached a maximal level after 60 to 90 minutes. In each volunteer, the initial increase of plasma interleukin 6 (IL-6) concentrations occurred 15 minutes after the initial TNF increase, and maximal IL-6 concentrations were reached at 120 to 150 minutes. A transient increase in body temperature and pulse rate occurred simultaneously with the initial TNF and IL-6 increases, whereas a significant decrease in blood pressure occurred after 120 minutes. These changes were proportional to the changes in TNF and IL-6 concentrations. Coagulation activation, as assessed by a rise of prothrombin fragments and thrombin-antithrombin III complexes, was noted after 120 minutes, in the absence of activation of the contact system. A two- to sixfold increase in the concentrations of tissue plasminogen activator (t-PA) and von Willebrand factor antigen indicated endothelial cell activation. This increase started at 120 and 90 minutes, respectively. The release of t-PA coincided with activation of the fibrinolytic pathway, as measured by plasmin-alpha 2-antiplasmin complexes. The fibrinolytic activity of t-PA was subsequently offset by release of plasminogen activator inhibitor, observed 150 minutes after the endotoxin injection, and reaching a peak at 240 minutes. No complement activation was detected. These results show that in humans endotoxin induces an early, rapidly counteracted fibrinolytic response, and a more long-lasting activation of thrombin by a mechanism other than contact system activation. In addition, our data suggest that endotoxin-induced leukopenia and endothelial cell activation are mediated by TNF.

scholarly journals High expression levels of egfl7 correlate with low endothelial cell activation in peritumoral vessels of human breast cancer

2016 ◽  
Vol 12 (2) ◽  
pp. 1422-1428 ◽  
Author(s):  
Diane Pannier ◽  
Géraldine Philippin-Lauridant ◽  
Marie-Christine Baranzelli ◽  
Delphine Bertin ◽  
Emilie Bogart ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Endothelial Cell ◽  
Human Breast Cancer ◽  
Cell Activation ◽  
High Expression ◽  
Human Breast ◽  
Endothelial Cell Activation ◽  
Expression Levels ◽  
Peritumoral Vessels
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