نتایج جستجو برای: urinary oligosaccharides
تعداد نتایج: 117536 فیلتر نتایج به سال:
how to cite this article: shakiba m. diagnosis in lysosomal disorders. iran j child neurol autumn 2012; 6:4 (suppl. 1):15- 16. pls see pdf.
A new method of urinary oligosaccharides identification by matrix-assisted laser desorption time-of-flight mass spectrometry is presented. The method involves three steps: coupling of the urinary oligosaccharides with 8-aminonaphthalene-1,3,6-trisulfonic acid; fast purification over a porous graphite carbon extraction column; and mass spectrometric analysis. Identification of urinary oligosacch...
Fifteen different structures of terminal GalNAc-containing N-linked oligosaccharides from human urinary kallidinogenase have been identified. These N-linked oligosaccharides were mostly neutral, because sialic acid content was lower than 0.13 mol of sialic acid/mol of sugar chain, and sulfate was not detected. The oligosaccharides were released from pepsin-digested protein by glycoamidase A (fr...
Many lysosomal storage diseases are characterized by an increased urinary excretion of glycoconjugates and oligosaccharides that are characteristic for the underlying enzymatic defect. Here, we have used capillary high-performance anion-exchange chromatography (HPAEC) hyphenated to mass spectrometry to analyze free oligosaccharides from urine samples of patients suffering from the lysosomal sto...
OBJECTIVE We investigated the mechanism of antihypertensive effects of sodium alginate oligosaccharides, which are enzymatic products of high-molecular-weight natural alginate from seaweeds, in Dahl salt-sensitive (Dahl S) rats. MATERIALS AND METHODS Dahl S rats fed a high-salt (4% NaCl) diet were subcutaneously administered sodium alginate oligosaccharides (60 mg/day using a continuous osmot...
Robust assays for the isolation and characterization of urinary FOS (free oligosaccharides) have been developed to screen patients for altered protein and/or lipid glycosylation. A FOS analysis can therefore identify potential biomarkers for hepatocellular carcinoma, since variations in glycosylation as a result of tumorigenecity should be detectable in the FOS of patients. HCC (hepatocellular ...
We describe a circular (radial) thin-layer chromatographic procedure for separating urinary oligosaccharides. Results were better than those obtained by a single linear development. Bands and specific patterns were finely resolved for various known oligosaccharidoses. The procedure provides a simple means of screening for these disorders.
Two homologous series of urinary oligosaccharides were identified by h.p.l.c. and fast-atom-bombardment mass spectrometry in feline alpha-mannosidosis. The predominant series has the composition Man2-8GlcNAc2 and a minor series the composition Man2-9GlcNAc. The structure of the most abundant oligosaccharide, which accounts for over 80% of the urinary oligosaccharide, was shown to be alpha-D-Man...
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