Results 221 to 230 of about 11,404 (259)

A Novel Method for Differentiating Dextran Sulfate from Related Sulfated Polysaccharides

Journal of Pharmaceutical Sciences, 1991
A method is described for unequivocal identification of dextran sulfate, based on combined chemical desulfation and dextranase enzymolysis of dextran sulfate moieties to isomaltose, a specific indicator of dextran-type precursors. The method was developed using high-resolution (300 MHz) 1H NMR spectroscopy for assurance of the molecular transformations,
K G, Ludwig-Baxter, R N, Rej, A S, Perlin, G A, Neville   +3 more
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Immune-enhancing activity comparison of sulfated ophiopogonpolysaccharide and sulfated jujube polysaccharide

International Journal of Biological Macromolecules, 2013
The immune-enhancing activities of four sulfated polysaccharides, sOPS(t), sOPS(80), sJPS(t) and sJPS(50) picked out in our previous researches, were compared taking four corresponding unmodified polysaccharides as control. In vitro experiment, the effects of eight polysaccharides on chicken peripheral lymphocyte proliferation were determined by MTT ...
Jing, Zhang, Jin, Chen, Deyun, Wang, Yuanliang, Hu, Cunshuai, Zhang, Tao, Qin, Cui, Liu, Xin, Sheng, The Luong, Nguyen   +8 more
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Sulfated polysaccharides and their anticoagulant activity: A review

Applied Biochemistry and Microbiology, 2010
Published data on the sulfated polysaccharides of various origins that display an anticoagulant activity are summarized and analyzed. The methods used for producing semisynthetic derivatives are considered. A key role of the polysaccharide structure in the mechanisms of specific interaction with various blood plasma proteinases is discussed.
N M, Mestechkina, V D, Shcherbukhin
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Microwave-assisted desulfation of sulfated polysaccharides

Carbohydrate Polymers, 2007
Abstract Several sulfated polysaccharides were desulfated by heating their pyridinium salts dissolved in dimethyl sulfoxide in a microwave oven. The procedure was applied to different products like a λ-carrageenan, a partially cyclized μ/ν-carrageenan, an agar-like product like corallinan, a fucoidan and a chondroitin sulfate.
Diego A. Navarro, María L. Flores, Carlos A. Stortz   +2 more
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Fucoidans — sulfated polysaccharides of brown algae

Russian Chemical Reviews, 2009
The methods of isolation of fucoidans and determination of their chemical structures are reviewed. The fucoidans represent sulfated polysaccharides of brown algae, the composition of which varies from simple fucan sulfates to complex heteropolysaccharides. The currently known structures of such biopolymers are presented.
Anatolii I Usov, M I Bilan
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[Hypolipidemic effect of sulfated polysaccharides].

Voprosy meditsinskoi khimii, 1997
In experiments on hyperlipidemic rats it was observed the hypolipidemic effect of new sulfated polisaccharides-chitosan, lutelan and krilan sulfates, More pronounced decrease was established in VLDL and increase of HDL after sulfated polysaccharides treatment. The most distinct efficiency exhibites preparation with moledular mass of 20-40 x 10(3) D and
V E, Ryzhenkov, M A, Solov'eva, O V, Remezova, I V, Okunevich   +3 more
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Sulfated polysaccharides and nanotechnology

2015
Sulfated polysacchar ides (SPs) are a complex group of biomolecules, many of which present relevant biological activities, such as antibiotic, anti-oxidant, anti-mutant, anticoagulant, antiviral, antitumor, anti-inflammatory, immunomodu latory. Additionally, being biocompatible, biodegradable and suitable for processing into membranes, hydrogels and ...
Carvalho, Vera Maria Rego Silva, Gama, F. M.   +1 more
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[Anticoagulant activity of sulfated polysaccharides].

Eksperimental'naia i klinicheskaia farmakologiia, 2007
The paper reviews published data on the chemical structure of sulfated polysaccharides of animal, plant, and microbial origin as well as synthetic or semi-synthetic derivatives, and on the anticoagulant activity of these compounds in vitro and in vivo.
N N, Drozd, G E, Bannikova, V A, Makarov, V P, Varlamov   +3 more
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Molecular modification of marine sulfated polysaccharides

2019
Molecular modification of marine polysaccharides constitutes an ever-expanding area in the field of carbohydrate chemistry. The goal of molecular modification through physical, chemical, and enzymatic methods is to produce newer derivatives such as grafted copolymers, cross-linked polymers, oversulfated, acetylated, deacetylated, benzoylated ...
Sutapa Biswas Majee, Dhruti Avlani, Gopa Roy Biswas   +2 more
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Sulfated polysaccharides of the red seaweeds

Food Hydrocolloids, 1992
Abstract This review is concerned with the latest concepts on the chemical structures of sulfated polysaccharides obtained from the red seaweeds and with some investigations in this field carried out at the Institute of Organic Chemistry in Moscow.
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