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Showing 1 to 20 of 63 for “"lipopolysaccharides"”.
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The Chemistry of The Lipopolysaccharides of Escherichia Coli
Made available in DSpace on 2014-12-05T19:37:44Z (GMT). No. of bitstreams: 1 6104266.pdf: 4834377 bytes, checksum: ac51cf0449f91adcdd3ef3c066052a6b (MD5) Previous issue date: 1961
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Differential Interactions of Lipopolysaccharides with Lipid Bilayers: Applications for Pathogen Detection
This dissertation describes the development of new tailored methods for the discriminative detection of amphiphilic lipopolysaccharide (LPS) antigens, so as to improve screening methodologies for food-safety applications, and detection of amphiphiles in general. LPS is associated with the outer …
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The recognition of lipopolysaccharides present in Gram-negative bacteria by receptors of the immune system
… bacteria. This pathogen is covered with lipopolysaccharides (LPS), which are recognized by macrophages through the cluster of differentiation receptor 14 (CD14). CD14 functions with the co-receptor known as Toll-like receptor 4 (TLR-4), which in the presence of an accessory receptor known …
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Investigating the effect of mutations in lipopolysaccharides (LPS) (O-antigen and Core region) of Salmonella Typhimurium on the colonisation of “microgreens”
… aimed to investigate the effect of mutations in lipopolysaccharides (LPS) of S. Typhimurium on the colonisation of microgreens. Extracts from nine different microgreens root and leaf samples infected by S. Typhimurium ATCC 14028 were plated on Xylose Lysine Deoxycholate (XLD) agar to quantify …
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CHARACTERIZATION OF BACTERIAL LIPOPOLYSACCHARIDES (Pseudomonas syringae pv. tomato and Pseudomonas syringae pv. apii) AND PECTINS OF TOMATO AND CELERY PLANTS (Lycopersicon esculentum and Apium graveolens) REGARDING THEIR POSSIBLE ROLE IN HOST/PATHOGEN-INTERACTION
… Hauptrechner-Strecke, die durch den Aufbau der lipopolysaccharides festgestellt wird, die auf ihrer Zelle Oberfläche und auf der Natur der Interaktion mit spezifischen Polymer-Plastiken des Hauptrechners vorhanden sind, besonders die Betriebspektine. Die Interaktionen zwischen bakteriellen …
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The Potential of Coelomocyte Chemotaxis as an Immune Biomarker in the Earthworm, Lumbricus terrestris
… Migration responses to immunostimulatory agents lipopolysaccharides (LPS), N-formly-methionyl-leucyl-phenylalanine (FMLP), sheep erythrocytes, Saccharomyces cerevisiae, Aeromonas hydrophila, Eisenia fetida and Rhabditis pellio were characterized. Chemotaxis was reported to LPS, FMLP, sheep …
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The Development of a Per-O-Benzylated 1-C-Aryl-glycal for the Synthesis of Kdo Glycosides
… acid (Kdo) is a key component of lipopolysaccharides (LPS) found in all gram-negative bacteria. The Kdo sugar exists almost exclusively in alpha-glycoside form and is essential for bacterial survival. Previously the Ling group has shown that a 1-C-aryl-3,4;6,7-diisopropylidenated …
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X-ray diffraction of a gram-negative bacterial membrane mimetic
… diffraction to measure he membrane structure of lipopolysaccharides and to develop a better model of a LPS bacterial melilbrane that can be used for biophysical research on antibiotics that attack cell membranes. \iVe ha'e Inodified the Physics department x-ray machine for use 3.'3 a thin film …
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Harnessing the optical properties of gold nanorods: fluorescence enhancement, biosensing and photothermal therapy
… bacteria by monitoring the binding of bacterial lipopolysaccharides to gold nanorods. We demonstrate that interactions between gold nanorods and lipopolysaccharides are governed by the nanoparticle surface coating. Polymer-coated gold nanorod substrates are exposed to lipopolysaccharides …
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Naujo tetrakatijoninio porfirino sukeltos Escherichia coli fotopažaidos /
… The dye forms complexes with nucleic acids and lipopolysaccharides in buffer solution, the interaction being of electrostatic nature. The interaction with surface structures of E. coli may facilitate the targeting of bacterial envelope. The study presents evidences for outer membrane …
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Anti-Inflammatory Mechanism By Oxysterols In Cultured Rat Brain Astrocytes
… of oxysterols in brain inflammation, I treated lipopolysaccharides(LPS)- or interferon gamma(IFN-stimulated rat brain astrocytes with two oxysterols, 7-ketocholesterol and 22(R)-hydroxycholesterol. In LPS-stimulated astrocytes, both oxysterols suppressed inducible nitric oxide synthase …
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An Investigation of Short-Term Memory Functioning in a Neurodevelopmental Rat Model of Schizophrenia
… symptoms in rats. The present study used Lipopolysaccharides to activate the cytokine-mediated inflammatory response injected into pregnant dams. A T-maze was used to measure short-term memory in rats. The goal of the present study was to test if rats with LPS-treated mothers had cognitive …
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Oil palm phenolics suppresses oxidative stress and inflammation
… OPP on cell size, morphology and phagocytosis of Lipopolysaccharides (LPS) induced inflammation in BV-2 microglial cells. This study was followed by experiments to quantify the reduction of nitrite and anti-inflammatory protein expression changes after addition of OPP in LPS-stimulated BV-2 cells. …
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Assembly of the O Antigen in the Highly Pathogenic Escherichia Coli Serotype O104:H4
… which can lead to kidney failure and death. Lipopolysaccharides (LPS) are important virulence factors in Gram-negative bacteria and our goal is to understand the enzymes and mechanisms involved in the assembly of the outer O antigenic polysaccharides of the ECO104 LPS. The O antigen repeating …
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Use of methionine sulfoximine to dissect the role of glutamine synthetase and glutamine in progression of acute liver failure
… were given intraperitoneal injections of E. coli lipopolysaccharides (LPS) and sugar D-galactosamine (D-GalN). When these animals were pretreated with MSO, 80% of the animals were completely rescued from liver failure. Moreover, when we characterized the immune response generated during ALF using …
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COMPARISON OF E. COLI AND Y. PESTIS LPS TLR4 TIME COURSE ON P388D1 MACROPHAGES USING FLUORESCENT CONJUGATED ANTIBODIES
… stimuli provided by a variety of bacterial lipopolysaccharides (LPS), known stimulants of the innate immune system. It has been shown that LPS-induced TLR4 dimerization and clustering correlate to an appropriate innate immune response. Imaging the degree of TLR4 clustering after exposure to …
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Evaluation of long-term effects of early auditory deprivation: an animal model for otitis media
… of the syndrome. It consisted of the infusion of lipopolysaccharides (derived from the plasmolemmae of Klebsiella pneumoniae, a pathogen known to cause the infection in nature) into the middle ear cavity. In the young (12 day old) animal, it was found that a dosage 200 times that employed in …
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Increased Mitochondrial Calpain-1 Is an Important Mechanism Contributing to Mitochondrial ROS Generation in Cardiac Diseases
… of streptozotocin-induced type-1 diabetes and lipopolysaccharides- induced sepsis, we show that the protein levels of calpain-1 and calpain activities in mitochondria were significantly elevated in diabetic and septic hearts. The elevation of mitochondrial calpain-1 correlated with an increase …
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