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Chondroitin sulfate-E (chondroitin-4, 6-disulfate) was prepared from chondroitin sulfate-A (chondroitin-4 - sulfate) by regioselective sulfonation, performed using trimethylamine sulfur trioxide in formamide under argon. The structure of semi-synthetic chondroitin sulfate-E was analyzed by PAGE, (1)H NMR, (13)C NMR, 2D NMR and disaccharide analysis and compared with natural chondroitin sulfate-E. Both semi-synthetic and natural chondroitin sulfate-E were each biotinylated and immobilized on BIAcore SA biochips and their interactions with fibroblast growth factors displayed very similar binding kinetics and binding affinities. The current semi-synthesis offers an economical approach for the preparation of the rare chondroitin sulfate-E from the readily available chondroitin sulfate-A.
This article was published in the following journal.
Name: Carbohydrate polymers
Currently marketed chondroitin sulfate isolated from animal sources and structurally quite heterogenous. Synthesis of structurally defined chondroitin sulfate is highly desired. The capsular polysacch...
We have investigated the role chondroitin sulfate has on cell interactions during neural plate formation in the early chick embryo. Using tissue culture isolates from the prospective neural plate, we ...
Osteoarthritic patients treated with high doses of chondroitin sulfate (CS) have a lower incidence of coronary heart disease - but the mechanistic aspects of these beneficial effects of CS remain unde...
In previous in-vitro and ex-vivo studies we proved the specific uptake of (99m)Tc radiolabeled chondroitin sulfate (CS) in human articular cartilage. As a logical next step for the clinical use for im...
Use of biological scaffolds and automating the cells directing process with materials such as growth factors and glycosaminoglycans (GAGs) in a certain path may have beneficial effects in tissue engin...
This study was conducted to evaluate the efficacy and safety of prednisolone and chloroquine add on therapies to combined glucosamine, chondroitin sulfate in osteoarthritis of the knee whi...
The purpose of this study is to assess the efficacy and safety of glucosamine and chondroitin sulfate association in the treatment of patients with osteoarthrosis of the knee.
The purpose of this study is to examine the way the dietary supplements glucosamine and chondroitin are absorbed and distributed throughout the body.
The purpose of this study is to determine the effect of a chondroitin sulphate conventional treatment on the degree of severity of synovitis, as measured by magnetic resonance in patients ...
The purpouse of this study is to determine the efficacy and safety of chondroitin sulphate conventional treatment in patients with both knee osteoarthritis and plaque psoriasis.
Derivatives of chondroitin which have a sulfate moiety esterified to the galactosamine moiety of chondroitin. Chondroitin sulfate A, or chondroitin 4-sulfate, and chondroitin sulfate C, or chondroitin 6-sulfate, have the sulfate esterified in the 4- and 6-positions, respectively. Chondroitin sulfate B (beta heparin; DERMATAN SULFATE) is a misnomer and this compound is not a true chondroitin sulfate.
Enzymes which catalyze the elimination of glucuronate residues from chondroitin A,B, and C or which catalyze the hydrolysis of sulfate groups of the 2-acetamido-2-deoxy-D-galactose 6-sulfate units of chondroitin sulfate. EC 4.2.2.-.
Enzymes which catalyze the elimination of delta-4,5-D-glucuronate residues from polysaccharides containing 1,4-beta-hexosaminyl and 1,3-beta-D-glucuronosyl or 1,3-alpha-L-iduronosyl linkages thereby bringing about depolymerization. EC 18.104.22.168 acts on chondroitin sulfate A and C as well as on dermatan sulfate and slowly on hyaluronate. EC 22.214.171.124 acts on chondroitin sulfate A and C.
Proteoglycans consisting of proteins linked to one or more CHONDROITIN SULFATE-containing oligosaccharide chains.
A naturally occurring glycosaminoglycan found mostly in the skin and in connective tissue. It differs from CHONDROITIN SULFATE A (see CHONDROITIN SULFATES) by containing IDURONIC ACID in place of glucuronic acid, its epimer, at carbon atom 5. (from Merck, 12th ed)
Biotechnology - Biotech
"using living things to create products or to do tasks for humans" About Biotechnology - Biotech Biotechnology is the practice of using plants, animals and micro-organisms such as bacteria, as well as biological processes - such as the ripen...