Search results for "Selectin"

ChemInform Abstract: Synthetic Inhibitors of Cell Adhesion: A Glycopeptide from E-Selectin Ligand 1 (ESL-1) with the Arabino Sialyl Lewisx Structure.

2010

ChemInform Abstract: Chemical and Chemoenzymatic Synthesis of Glycopeptide Selectin Ligands Containing Sialyl Lewis X Structures

2010

ChemInform Abstract: Syntheses of Sialyl Lewis A Glycopeptides - A Partial Sequence of the P-Selectin Ligand PSGL-1.

2000

Immunological Markers for PML Prediction in MS Patients Treated with Natalizumab

2015

International audience; Natalizumab (NTZ), a monoclonal antibody recognizing the alpha4 integrin chain, has been approved for the treatment of active multiple sclerosis, but expose to the onset of a rare side effect, progressive multifocal leukoencephalopathy (PML). Estimating the individual risk of PML in NTZ-treated patients is a major challenge, and therapeutic strategies are mainly guided by the overall PML risk assessed by identified risk factors: JC virus (JCV) seropositivity, treatment duration (with peak incidence after 24 months), and the previous use of immunosuppressive therapies. Given that this stratification does not yet allow a precise individual prediction of PML, other pred…

Autentiskie video materiāli skolēnu klausīšanās prasmju pilnveidei angļu valodas stundās 8. klasē

2022

Diplomdarbā tiek pētīts, kā iespējams pilnveidot 8. klases skolēnu klausīšanās prasmes, izmantojot autentiskos video materiālus angļu valodas stundās. Darbs sniedz ieskatu klausīšanās prasmju nozīmē komunikācijā un autentisko video materiālu izmantošanā angļu valodas stundās. Izvēlētā pētījuma metode bija gadījuma pētījums kādā no Latvijas vidusskolām. Skolēnu aptaujas, testi, skolēnu atsauksmes un intervijas ar trīs angļu valodas skolotājām tika izmantotas kā datu ieguves metodes. Iegūtie dati liecina, ka autentisku video materiālu izmantošana angļu valodas stundās, pozitīvi ietekmē skolēnu klausīšanās prasmes: skolēniem ir vieglāk saprast dažādus akcentus, viņus mazāk ietekmē fona troksni…

Cryopreserved platelets: from in vitro thrombin generation potential to in vivo safety

2015

Abstract Background: Cryopreservation of platelets (PLTs) at -80°C with dimethyl sulfoxide (DMSO) can extend their shelf life up to 2 years. Cryopreserved PLTs (CRY-PLTs) are reported to have a greater in vivo hemostatic effect than liquid-stored PLTs. Aims of this study were: i. to evaluate the thrombin generation potential of buffy coat derived cryopreserved PLTs (CRY- BC PLT) in comparison with fresh buffy coat derived platelets concentrates; ii. to determine the efficacy and safety of CRY-PLTs transfusion in hematological patients with severe thrombocytopenia. Materials and methods: BC PLTs were obtained from 5 buffy coats and pooled. The final PLTs concentrates were leukoreduced by fil…

Effects of soy isoflavones on endothelial function in healthy postmenopausal women.

2005

Objective: To evaluate the effects of soy isoflavone administration on endothelial function in healthy postmenopausal women. Design: Sixty naturally postmenopausal women were randomly assigned to receive isoflavone or placebo tablets for 6 months. Endothelium-dependent vasodilatation was measured by brachial reactivity technique along with levels of plasma soluble intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), E-selectin, P-selectin and soluble thrombomodulin, von Willebrand factor, and tissue plasminogen activator. Differences between endothelium-dependent and endothelium-independent vasodilatation were assessed by evaluating brachial reactivity par…

IgG anti-endothelial cell antibodies (AECA) in type I diabetes mellitus; induction of adhesion molecule expression in cultured endothelial cells

1998

SUMMARYAECA were detected in 25 of 71 patients with type 1 diabetes mellitus and in two of 33 healthy subjects. Patients with diabetes of < 1 year duration and those with long-standing disease had the highest levels of these antibodies. Inhibition studies suggest that at least part of the AECA reactivity is due to cross-reactive anti-ssDNA antibodies. AECA-positive sera were able to increase intercellular adhesion molecule-1 (ICAM-1) and E-selectin on human umbilical vein endothelial cells (HUVEC). Increased binding of polymorphonuclear (PMN) cells was also found to accompany raised E-selectin expression. Soluble ICAM-1 and E-selectin were also found to be increased in the sera of AE…

Cytokines, Selectins and Adhesion Molecules Plasma Levels in Acute Ischaemic Stroke: Relationship with Stroke Subtype, Ischaemic Lesion Site and Clin…

2007

Angiotensin II induces leukocyte-endothelial cell interactions in vivo via AT(1) and AT(2) receptor-mediated P-selectin upregulation.

2000

Background —Angiotensin II (Ang II) plays a critical role in the development of vascular lesions in hypertension, atherosclerosis, and several renal diseases. Because Ang II may contribute to the leukocyte recruitment associated with these pathological states, the aim of the present study was to assess the role of Ang II in leukocyte–endothelial cell interactions in vivo. Methods and Results —Intravital microscopy of the rat mesenteric postcapillary venules was used. Sixty minutes of superfusion with 1 nmol/L Ang II induced a significant increase in leukocyte rolling flux (83.8±20.7 versus 16.4±3.1 cells/min), adhesion (11.4±1.0 versus 0.8±0.5 cells/100 μm), and emigration (4.0±0.7 versus …