Results 251 to 260 of about 15,268,560 (303)
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Chromatography of methyl ethers of d-glucosamine
Analytical Biochemistry, 1971Abstract Identification of methyl ethers obtained by methylation and subsequent hydrolysis is a powerful technique for determination of linkage positions in structure studies of complex carbohydrates. Although methyl ethers of neutral sugars have been separated by various chromatographic methods, separation of methyl ethers of 2-amino-2-deoxy- d ...
Jane R. Scocca, Yuan C. Lee
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Polycondensation of N-acetyl-D-glucosamine and structure of poly (N-acetyl-D-glucosamine)
Polymer, 1977Abstract N- Acetyl- d -glucosamine was polymerized by the action of phosphorus in dimethyl sulphoxide or poly(phosphoric acid ester) in dimethylformamide. The structure of the synthetic poly ( N- acetyl- d -glucosamine ) was determined by chemical methods. Polymers obtained from the phosphorus pentoxide/dimethyl sulphoxide system were
Masahiko Sisido +2 more
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Production of N-methyl-d-glucosamine [PDF]
Pharmaceutical Chemistry Journal, 1967 A method was developed for the production of N-methyl-d-glucosamine by the reductive animation of d-glucose.
V. Ya. Yakovleva +5 more
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D-Glucosamine and N-Acetyl D-Glucosamine: Their Potential Use as Regenerative Medicine
2015Glucosamine (GlcN), an amino sugar, is a compound derived from substitution of a hydroxyl group of a glucose molecule with an amino group. GlcN and its acetylated derivative, N-acetylglucosamine (GlcNAc), have been widely used in food, cosmetics, and pharmaceutical industries and are currently produced by acid hydrolysis of chitin (a linear polymer of ...
P. K. Dutta, Tanvi Jain, Hridyesh Kumar
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Transdermal Permeability of N-Acetyl-D-Glucosamine
Pharmaceutical Development and Technology, 2007Transdermal permeation of N-acetyl-D-glucosamine (NAG), a metabolite of glucosamine was examined. Glucosamine salts are nutraceuticals used in the oral treatment of osteoarthritis. Sparse information is available regarding glucosamine and NAG transdermal or percutaneous transport and absorption.
Solomon T. Garner +5 more
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Inhibition of lysozyme by derivatives of d-glucosamine. I
Biochimica et Biophysica Acta (BBA) - Protein Structure, 1967Abstract 1. 1. 2-Acylamido derivatives of 2-deoxy- d -glucose have been tested as inhibitors of the lysis of Microccocus lysodeikticus cell suspensions by lysozyme (mucopeptide N -acetylmuramylhydrolase, EC 3.2.1.17) at pH 6.2. 2. 2. Only the 2-acetamido derivative was found to be effective as an inhibitor amongst the reducing derivatives ...
B.M. Wilson, A. Neuberger
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Hydrolysis of α-d-glucosamine-1-phosphate
Archives of Biochemistry and Biophysics, 1965Abstract The hydrolysis of α- d -glucosamine-1-phosphate at 100 °C from pH 3 to 6 demonstrates a pH behavior and stability similar to that observed for α- d -glucose-1-phosphate. The observed rate is due to the hydrolysis of the neutral species, IIa ( k = 4 × 10 −5 sec −1 ) and one of the negatively charged zwitterions, IIIb ( k = 3.4 × 10 −5
O.Bertrand Ramsay +3 more
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d-glucosamine uptake by rat brain synaptosomes
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1977Abstract Uptake of d -glucosamine by rat brain synaptosomes occurs via a saturable transport process ( K m 2.1 mM , V 3.0 nmol/mg per min) which was clearly distinguishable from simple diffusion. This transport process is highly sensitive to cytochalasin ( K i = 7 · 10 −5 mM.
C. H. Tan, N.A. Peterson, E. Raghupathy
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Phosphorylation of D-Glucosamine by Rat Liver Glucokinase
The Journal of Biochemistry, 1975D-Glucosamine was found to be phosphorylated by a rat liver extract in the presence of a high concentration of glucose, which was formerly believed to be a strong competitive inhibitor of this reaction. Results suggested that glucosamine may be phosphorylated by high Km hexokinase, i.e. glucokinase [EC 2.7.1.2].
Nobu Akamatsu +3 more
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A Reaction of D-Glucosamine in the Presence of ‘Dry’ Protein
Nature, 1952IN work on the reaction of reducing sugars with proteins in the ‘dry’ state already reported1, glucosamine (2-amino-D-glucose) was used as an aldo hexose modified at the important carbon 2 position. Browning of the reaction mixture was found to occur extremely rapidly; but the chemical data indicated that something quite different from the normal ...
D. N. Rhodes, S. Borrell, C. H. Lea
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