Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"D-Galactose"”.
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The influence of monosaccharide types (D-glucose, D-mannose and D- galactose) in inducing lactic acidosis in goats
Call number: LD2668 .T4 1978 M78
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CHEMICAL AND KINETIC STUDIES OF BACTERIAL TRANSPORT AND CHEMORECEPTOR PROTEINS
… of specific ligands with the L-arabinose-, D-galactose-,D-maltose- and L-histidine-binding proteins were examined by stopped flow rapid mixing techniques. The change in tryptophan fluorescence that occurs in these reactions is adequately described in all cases by a rapid second order process, …
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Queratinofilia e perfil histoquímico de fungos isolados do solo de áreas de lazer da cidade do Recife, Pernambuco, Brasil.
… de N-acetil- D-glucosamina, L-fucose, D-galactose e glucose/manose na parede celular de fungos filamentosos queratinofílicos, isolados de solos de áreas de lazer, através de um simples protocolo de marcação com lectinas. As culturas fúngicas usadas foram isoladas de solos de parquet …
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Darstellung langkettiger Monosaccharide mittels Olefin-Metathese-Reaktion
… jeweils auf Basis von D-Mannose, D-Glucose, D-Galactose oder D-Mannitol darstellen lassen. Es erfolgte zunächst eine Klammerung mittels einer Silyletherbrücke zu einem Dien. Anschließend erfolgte im Schlüsselschritt der Sequenz eine intermolekulare Metathese-Reaktion, wobei ein Ringschluss …
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Structural analysis of glycolipid-derived oligosaccharides from metabolically radiolabelled colorectal carcinoma SW1116 cells
… labelled with 222 μCi/ml of either 6-[³H]-D-galactose (25 Ci/mMol) or 6-[³H]-D-glucosamine (38 Ci/mMol) for 30 hours, incorporated 1%-3% of the radioactivity into their glycoconjugates. Approximately 63% of the radioactivity recovered in the glycoconjugates corresponded to glycolipids when …
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Some South African red seaweed polysaccharides
… esters of polysaccharides which contain D-galactose. Agar and carrageenin mucilages are obtained by aqueous extraction from certain red seaweeds of the class Florideae. Agar is extensively used in the meat canning and confectionery trades where it has to a very large extent replaced …
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Studies on fucosylation in Trypanosoma brucei
… reaction product identified it as a GDP-Fuc: ß-D-galactose a-1,2-fucosyltransferase with preference for Galß1,3GlcNAc containing structures as glycan acceptors. A procyclic form conditional null mutant for TbFT was generated and this glycosyltransferase shown to be essential for parasite growth in …
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Non-electrolyte transport in brush border membrane vesicles from bovine small intestine
… stimulated, and inhibited by phloridzin, D-galactose, and D-xylose. Transport of L-alanine was sodium stimulated and mediated by at least two systems. Apparent affinities for L-alanine transport were .039, and .943 mM. Maximum velocities were 29.2, and 53.4 pmoles/mg protein/sec, for the two …
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Synthesis and Characterization of Monosaccharide-derived Low Molecular Weight Gelators
… and characterization of ester derivatives of D-galactose, D-glucose, and amide derivatives of D-glucosamine will be discussed in chapters 2-4, along with their evaluation for gelation in aqueous and organic solvents, such as hexane, ethanol, water, and aqueous DMSO or ethanol mixtures.</p>
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Synthesis of glycolipids inspired by Fucus distichus and natural product isolation and characterization of Euphorbia lancifolia
… identified as a glycolipid consisting of beta- D-galactose linked to two o-linolenic acid chains via a glycerol unit. The synthesis of this glycolipid, as well as a number of derivatives, is described to investigate their antibiotic and antiviral activity relative to the natural product. One major …
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Growth and metabolism of Aquaspirillum gracile
… been previously investigated. Only D-glucose, D-galactose, and L-arabinose are attacked. The soluble portion of extracts of glucose-grown cells was found by spectrophotometric methods to contain enzyme activities characteristic of the Entner-Doudoroff and the Embden-Meyerhof-Parnas pathways. Much …
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Chemical synthesis of <em>Leishmania </em>lipophosphoglycan structures conjugated to a biotin moiety
… the biotin-spacer moiety as a phosphate at the D-galactose unit. This meant performing chain elongation from the reducing end, with the first disaccharide unit being capped at the D-mannose anomeric position with a methyl group. Below are examples of the targeted biotinylated phosphoglycan …
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Complex bioactive fiber systems by means of electrospinning
… saccharides. Aminofunctionalized D-Mannose or D-Galactose was reacted with the active pentafluorophenyl esters as followed by UV/Vis spectroscopy and XPS. The functionality was shown to be bioactive using macrophage cell culture. The meshes functionalized with D-Mannose specifically stimulated …
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Radical Tools to Transform Biomass Sugars
… commercial scales (e.g. D-glucose, D-xylose, D-galactose), there are > 500 ’rare’ sugars that feature prominently and are difficult to isolate from natural sources. Instead, these rare glycosides are typically prepared through multistep chemical syntheses which commonly rely on protecting group …
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Sodium and glucose transport across the in vitro perfused midgut of the blue crab, Callinectes sapidus Rathbun
… was also decreased by the presence of mucosal D-galactose, but not D-fructose or L-glucose. The net glucose flux followed Michaelis-Menten kinetics. The mucosal glucose uptake by the midgut was composed of two processes: a sodium-dependent, saturable component, and a sodium-indenpendent, …
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The Role of CH–π Interactions in Protein-Carbohydrate Binding
… of CH–π stacking interactions formed by β-D-galactose and found that numerous orientations are highly favorable. I then identified carbon atom distances that define an orientational landscape for these interactions. To assess the interplay between non-covalent interactions in …
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Mannaric Acid and Mannaric Acid Polyamides: Synthesis and Characterization
… occurring aldohexose after D-glucose and D-galactose, respectively. Historically, D-mannaric acid has been prepared by the nitric acid oxidation of D-mannose. The first published report comes from Haworth et al. in 1944 with D-mannaric acid isolated as crystalline …
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Mannaric Acid and Mannaric Acid Polyamides: Synthesis and Characterization
… occurring aldohexose after D-glucose and D-galactose, respectively. Historically, D-mannaric acid has been prepared by the nitric acid oxidation of D-mannose. The first published report comes from Haworth et al. in 1944 with D-mannaric acid isolated as crystalline …
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Protective effects of regular exercise and Korea red ginseng against high-fat diet-increased renal injury in ᴅ-galactose-induced aging rats
… to investigate whether HFD would accelerate ᴅ-galactose (GAL)-induced renal injury and to examine the preventive effects of a regular exercise and KRG on GAL/HFD -induced renal injury. In the first experiment, age-related renal injury was induced by an administration with GAL (100 mg/kg, i.p.) …
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