Results 81 to 90 of about 4,376 (119)

Utilization of Neuraminic Acid Receptors by Mycoplasmas

Journal of Bacteriology, 1969
Erythrocytes and H-HeLa cells were treated with neuraminidase and then compared with untreated cells for their ability to adsorb to mycoplasma colonies or be agglutinated by suspensions of the mycoplasmas. Of the 17 mycoplasma serotypes examined, only 4 were found to use neuraminic acid receptors; these were Mycoplasma ...
R J, Manchee, D, Taylor-Robinson
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Circular dichroism of oligosaccharides containing neuraminic acid

Biochemistry, 1975
In order to test the usefulness of circular dichroism in stereochemical and structural studies of oligosaccharides of glycoproteins, we measured the circular dichroism (CD) for N-acetylneuraminic acid (NAcNA) and several derivates. By acidic mathanolysis, we have prepared the deacetylated methyl ester, methyl glycoside of NAcNA, as well as a saponified
H R, Dickinson, C A, Bush
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Characterization of visna virus envelope neuraminic acid

Journal of Virology, 1977
Visna virus particles inhibit influenza virus hemagglutination in an assay for neuraminic acid-containing viruses. Pretreatment of visna virus with neuraminidase abolished hemagglutination inhibition activity but did not significantly affect attachment, infectivity, or virus-induced cell fusion in sheep choroid plexus cell monolayers.
M J, August, D H, Harter, R W, Compans
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Dialysable Neuraminic Acid in Human Cerebrospinal Fluid

Nature, 1962
BECAUSE of the presence of interfering sugars in great excess, it has not been possible heretofore to determine with any certainty in other laboratories as well as our own1 whether neuraminic acid occurs in dialysable form in cerebrospinal fluid. Recent methods developed in this laboratory for the quantitative fractionation of all the carbohydrate ...
S, BOGOCH, P, EVANS
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8-O-Sialylation of Neuraminic Acid

Journal of the American Chemical Society, 1998
Synthesis of Neu5Acα(2−3)Galβ(1−4)Glc and Neu5Acα(2−8)Neu5Ac derivatives 12α and 14α, from lactose derivative 6 and 2,3-dehydro-Neu5Ac derivative 7, respectively, with anchimerically assisted Neu5Ac donor 3e, 3f, or 3g has been studied. Reaction of halogenose 3e, having a 3-phenoxythiocarbonyloxy moiety as the assisting group, afforded with 6 and 7 in ...
Julio C. Castro-Palomino, Yury E. Tsvetkov, Richard R. Schmidt   +2 more
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Neuraminic acid - structure, chemistry, biological activity

2002
STUDIES IN NATURAL PRODUCTS CHEMISTRY, ELSEVIER, ATTA-UR-RAHMAN ...
Bianco A., Melchioni C.
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Cerebrospinal Fluid Neuraminic Acid Deficiency in Schizophrenia

Archives of Neurology And Psychiatry, 1958
With the thought that metabolic disturbances nuclear to the schizophrenic process might best be studied in the central nervous system itself, the attention of this laboratory has been directed to certain little-known chemical constituents of the brain and cerebrospinal fluid.
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Determination of neuraminic acid in cerebral tissues

Analytical Biochemistry, 1960
Abstract The concentration of neuraminic acid was determined in the gray matter of the insular and temporal cortex as well as of the basal ganglia, and in the white matter of normal autopsy human brains. Samples from the cerebral tissues were separated into two fractions: a water-soluble lipid and a lipid-free residue.
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Inhibition of neuraminidase with neuraminic acid C -glycosides

Bioorganic & Medicinal Chemistry Letters, 2000
Neuraminic (sialic) acid based alpha-C-glycosides have been synthesized and their inhibitory activity towards bacterial neuraminidase (sialidase) was examined. While some C-glycosides were found to be potent inhibitors (Ki 15-30 microM) of this neuraminidase, others afforded no measurable activity.
Q, Wang, M, Wolff, T, Polat, Y, Du, R J, Linhardt   +4 more
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Some Observations on Certain Mucoproteins containing Neuraminic Acid

Nature, 1959
IT is now well established1–4 that mucoproteins, particularly those containing neuraminic acids, play a major part in the natural defences of the human body. With the object of determining what part is played by such mucoproteins in human cancer we have assessed the amount and distribution of mucoproteins containing neuraminic acid by determination of ...
S. A. BARKER, M. STACEY, D. J. TIPPER, J. H. KIRKHAM   +3 more
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