neuraminic acid/inflamație

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Variations of plasma sialic acid and N-acetylglucosamine levels in cancer, inflammatory diseases and bone marrow transplantation: a proton NMR spectroscopy study.

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Proton NMR spectroscopy allows the detection in plasma of resonances arising from N-acetyl-glucosamine (NAG) and N-acetyl-neuraminic acid (NANA) which have been shown to be borne by acute phase glycoproteins. These resonances can be identified using 2 different protocols of spectrum acquisition

Nontypeable Haemophilus influenzae: the role of N-acetyl-5-neuraminic acid in biology.

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Nontypeable Haemophilus influenzae (NTHi) is an exclusive human pathogen, which has evolved a number of unique mechanisms to survive within the human environment. An important part of this is the ability of the organism to take up and incorporate sialic acid into its surface structures. This

Synthesis and Functional Characterization of Novel Sialyl LewisX Mimic-Decorated Liposomes for E-selectin-Mediated Targeting to Inflamed Endothelial Cells.

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Sialyl LewisX (sLeX) is a natural ligand of E-selectin that is overexpressed by inflamed and tumor endothelium. Although sLeX is a potential ligand for drug targeting, synthesis of the tetrasaccharide is complicated with many reaction steps. In this study, structurally simplified novel sLeX

Detection of sarcolectin-specific receptors like the cytokine macrophage migration inhibitory factor in rheumatoid nodules.

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The objective of this study was the evaluation of the relation between the N-acetyl-neuraminic acid-binding endogenous lectin sarcolectin and the cytokine macrophage migration inhibitory factor (MIF) during development of rheumatoid nodules (RN) in seropositive rheumatoid arthritis (RA). Sarcolectin

Graphic-aided study of metabolic modifications of plasma in cancer using proton magnetic resonance spectroscopy.

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Proton high-resolution MRS of human plasma allows the rapid detection, on the same spectrum, of many compounds originating from different metabolic pathways. In this paper, we illustrate the modifications of the plasma metabolic profiles recorded by proton NMR spectroscopy in different classes of

[Clinical relevance of sialic acids determination in serum and synovial fluid in orthopaedic disorders].

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Sialic acids, derivatives of neuraminic acid, are present as structural components of mucoprotein mainly in the alpha 1 and alpha 2-globulin regions, and they are known to change in diseases associated with acute inflammation or tissue necrosis. The present study was performed to clarify the

The binding of human lactoferrin to mouse peritoneal cells.

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Human iron-saturated Lf (FeLf), which was labeled with 125I or 50Fe, was found to combine with the membrane of mouse peritoneal cells (MPC) which consisted of 70% macrophages. The following experimental data suggested the involvement of a specific receptor. (a) The binding of FeLf to MPC reached a

Xenogeneic Neu5Gc and self-glycan Neu5Ac epitopes are potential immune targets in MS.

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To explore the repertoire of glycan-specific immunoglobulin G (IgG) antibodies in treatment-naive patients with relapsing-remitting multiple sclerosis (RRMS).A systems-level approach combined with glycan array technologies was used to determine

Hemolytic Uremic Syndrome Associated With Non-Shigatoxin-producing Infectious Agents: Expanding the Shigatoxin Theory.

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Diarrhea-associated hemolytic uremic syndrome (HUS) is usually associated with shigatoxin-producing Escherichia coli or shigella infections. We report 2 cases of HUS, respectively, caused by salmonella and Campylobacter jejuni infections. None of these bacteria produce shigatoxins, and the

Fluorescent mimetics of CMP-Neu5Ac are highly potent, cell-permeable polarization probes of eukaryotic and bacterial sialyltransferases and inhibit cellular sialylation.

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Oligosaccharides of the glycolipids and glycoproteins at the outer membranes of human cells carry terminal neuraminic acids, which are responsible for recognition events and adhesion of cells, bacteria, and virus particles. The synthesis of neuraminic acid containing glycosides is accomplished by

Immunohistochemical detection of sepsis-induced lung injury in human autopsy material.

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This review addresses our present-day knowledge on the role of different cellular adhesion molecules, cytokines and glycoproteins for the detection of sepsis-induced injury in the microvasculature of the human lung using immunohistochemistry. Through the induction and modulation of endothelial cell

Lectin binding patterns of alveolar epithelium and subepithelial seromucous glands of the bronchi in sepsis and controls--an approach to characterize the non-specific immunological response of the human lung to sepsis.

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A delayed or deficient immunological protection as well as an overstimulation of the mucosal immune system may act as possible additional promoters of sepsis-induced lung injury in patients suffering from a severe septic condition. Lectin-binding patterns in pulmonary tissue samples obtained at

Inverse hormesis of cancer growth mediated by narrow ranges of tumor-directed antibodies.

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Compelling evidence for naturally occurring immunosurveillance against malignancies informs and justifies some current approaches toward cancer immunotherapy. However, some types of immune reactions have also been shown to facilitate tumor progression. For example, our previous studies showed that

Correlation between sialic acid levels in the synovial fluid and the radiographic severity of knee osteoarthritis.

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Osteoarthritis (OA) is associated with the presence of inflammation. Sialic acid (SA), an acetylated derivative of neuraminic acid, is reported to be a useful biomarker of inflammation. The aim of the present study was to investigate the correlation between SA levels in the serum and synovial fluid

Human peripheral blood lymphocyte severe combined immunodeficiency (hu-PBL SCID) models of toxoplasmosis.

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Toxoplasmosis is a potentially fatal opportunistic infection of immunocompromised hosts. Improved animal models of toxoplasmosis are needed to more nearly approximate conditions that occur in immunocompromised humans. The development of models of toxoplasmosis using human peripheral blood

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