Results 51 to 60 of about 809,751 (208)

Chemoenzymatically Synthesized O‐Acetylated GD3 Gangliosides to Examine Viral Receptor Specificities in a Cellular Context

open access: yesAngewandte Chemie, Volume 138, Issue 2, 9 January 2026.
7‐O‐, 9‐O‐, and 7,9‐di‐O‐acetylated GD3 gangliosides can be prepared by chemical assembly of a tetrasaccharide as α‐glycosyl fluoride that is coupled to sphingosine using a glycosynthase, followed by O‐acetyl editing by coronaviral hemagglutinin‐esterases (HEs).
Zhiyong Zhang   +5 more
wiley   +2 more sources

Free and bound forms of sialic acid in blood plasma of patients with chronic lymphocytic leukemia

open access: yesRegulatory Mechanisms in Biosystems, 2015
The level of free and bound forms of sialic acids (SА) was investigated in chronic lymphocytic leukemia (CLL) and at different stages of receiving chemotherapy.
O. V. Netronina
doaj   +1 more source

Bio‐Based Microfluidics With Snail Slime: A By‐Product of Agriculture Plays an Exciting Role in the Chemistry of Microfluidic Reaction Chambers

open access: yesMacromolecular Rapid Communications, EarlyView.
Due to a broad spectrum of active ingredients, snail slime presents a variety of exciting physical properties and chemical reactivities. Especially in the role of the reduction‐ and stabilizing agent for the manufacturing of gold nanoparticles, its great potential is revealed. Utilising the proteins found in slime, Nanoparticle‐comprising hydrogels are
Andrea Koball, Jens Gaitzsch
wiley   +1 more source

Molecular Characterization of a Novel N-Acetylneuraminate Lyase from a Deep-Sea Symbiotic Mycoplasma

open access: yesMarine Drugs, 2018
N-acetylneuraminic acid (Neu5Ac) based novel pharmaceutical agents and diagnostic reagents are highly required in medical fields. However, N-acetylneuraminate lyase(NAL)for Neu5Ac synthesis is not applicable for industry due to its low catalytic ...
Shao-lu Wang   +6 more
doaj   +1 more source

Advancements in Mass Spectrometry‐Based Glycomics in Food and Nutritional Science

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT This review highlights advancements in mass spectrometry (MS)‐based glycomics in food and nutritional science. Carbohydrates, which are vital for human health, exhibit complex structures, making their analysis challenging. MS has become an indispensable tool for elucidating the structures of carbohydrates, including glycans, through soft ...
JaeHui Song   +3 more
wiley   +1 more source

Gas–liquid chromatographic assay of lipid-bound sialic acids: measurement of gangliosides in brain of several species

open access: yesJournal of Lipid Research, 1970
A method is described for analysis of gangliosides by GLC assay of the sialic acid component. Mild acid treatment in methanol converted the latter to methyl ketoside methyl ester, which was then chromatographed as the TMS derivative.
ROBERT K. YU, ROBERT W. LEDEEN
doaj   +1 more source

Overproduction of N-Acetylneuraminic Acid (Sialic Acid) by Sialuria Fibroblasts [PDF]

open access: yesPediatric Research, 1985
Fibroblasts from the original sialuria patient are shown to contain high levels of free sialic acid, i.e., an average of 87 versus a normal average of 2 nmol/mg of protein. Gas liquid chromatography-mass spectrometry analysis confirmed that the accumulated material is N-acetylneuraminic acid.
G H, Thomas, L W, Reynolds, C S, Miller
openaire   +2 more sources

Synthesis of Sustainable Chromium‐Based Nanoparticles With Fluorescence Tunable Ability for Biosensing of Tumor‐Derived Exosomes and Molecular Information Protection

open access: yesSusMat, EarlyView.
The study uses rapidly prepared Cr NPs with controllable fluorescence, enabling co‐regulation of quenching and enhancement for dyes and DNA of differing structures. By assembling a CD63‐specific aptamer with Cr NPs, it creates a quantitative readout for CD63‐positive TDEs.
Meng Yao Wu   +5 more
wiley   +1 more source

Adhesion of Immunoglobulins to Band3 Promotes Increased Erythrocyte Sedimentation Rate in Multiple Myeloma

open access: yesCell Proliferation, EarlyView.
Decreased sialic acid increases the adhesion of RBC membranes to immunoglobulins leading to an increased erythrocyte sedimentation rate (ESR). The increase in reactive oxygen species (ROS) damages the sialic acid glycosyl chains on the surface of RBC membrane proteins, causing the membrane proteins to be overexposed to the plasma environment due to the
Sicheng Bian   +16 more
wiley   +1 more source

Generation of α1,3-galactosyltransferase and cytidine monophospho-N-acetylneuraminic acid hydroxylase gene double-knockout pigs

open access: yesJournal of reproduction and development, 2015
Zinc-finger nucleases (ZFNs) and transcription activator-like effector nucleases (TALENs) are new tools for producing gene knockout (KO) animals. The current study reports produced genetically modified pigs, in which two endogenous genes were knocked out.
S. Miyagawa   +14 more
semanticscholar   +1 more source

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