Polysaccharides Sulfated
Mostrando 1-12 de 69 artigos, teses e dissertações.
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1. Polysaccharides of red alga Gracilaria intermedia: structure, antioxidant activity and rheological behavior
Abstract A sulfated polysaccharide fraction from the red alga Gracilaria intermedia (PLS) was obtained by papain digestion (60 °C, 30 min). The extract was subjected to colorimetry and turbidimetry analysis, Fourier transform infrared (FTIR) spectroscopy, 1H, 13 C and 2D 1H COSY nuclear magnetic resonance (NMR) and gas chromatography/mass spectrometry anal
Polímeros. Publicado em: 21/05/2018
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2. Sperm and Egg Jelly Coat from Sea Urchin Lytechinus variegatus Collected in Rio de Janeiro Contain Distinct Sialic Acid-Rich Polysaccharides
This work found the occurrence of a distinct sialic acid-rich polysaccharide in the sperm surface of the sea urchin Lytechinus variegatus, which differed significantly from a similar molecule found in the egg jelly. The sperm polysaccharide extracted by protease digestion was purified using anion exchange chromatography and characterized using agarose gel el
Braz. arch. biol. technol.. Publicado em: 2015-08
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3. Streptozotocin-induced diabetes mellitus affects lysosomal enzymes in rat liver
It has been previously shown that dextran sulfate administered to diabetic rats accumulates in the liver and kidney, and this could be due to a malfunction of the lysosomal digestive pathway. The aim of the present study was to evaluate the expression and activities of lysosomal enzymes that act upon proteins and sulfated polysaccharides in the livers of dia
Braz J Med Biol Res. Publicado em: 2014-06
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4. Sulfated polysaccharide extracted of the green algae Caulerpa racemosa increase the enzymatic activity and paw edema induced by sPLA2 from Crotalus durissus terrificus venom
Sulfated polysaccharides derived from seaweed have shown great potential for use in the development of new drugs. In this study, we observed that a low-molecular-weight sulfated polysaccharide from Caulerpa racemosa, termed CrSP, could interact with secretory phospholipase A2 (sPLA2) isolated from Crotalus durissus terrificus venom. When native sPLA2 (14 kDa
Rev. bras. farmacogn.. Publicado em: 02/08/2013
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5. Role of the NO/K ATP pathway in the protective effect of a sulfated-polysaccharide fraction from the algae Hypnea musciformis against ethanol-induced gastric damage in mice
Seaweeds are the most abundant source of polysaccharides such as alginates and agar, as well as carrageenans. This study aimed to investigate the gastroprotective activity and the mechanism underlying this activity of a sulfated-polysaccharide fraction extracted from the algae Hypnea musciformis (Wulfen) J.V. Lamour. (Gigartinales-Rhodophyta). Mice were trea
Rev. bras. farmacogn.. Publicado em: 01/02/2013
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6. Polissacarídeos da alga marinha lithothamnion muelleri: obtenção, caracterização química e atividade antiartrítica
Marine organisms are a promising source of bioactive compounds, including red seaweeds, which are known to produce sulfated polysaccharides with different biological properties. The aim of this study was to obtain and characterize polysaccharide-rich fractions of the marine red alga Lithothamnion muelleri Lenormand ex Rosanoff (Hapalidiaceae), as well as to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012
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7. Structure versus anticoagulant and antithrombotic actions of marine sulfated polysaccharides
Marine sulfated polysaccharides (MSP), such as sulfated fucans (SF), sulfated galactans (SG) and glycosaminoglycans (GAG) isolated from either algae or invertebrate animals, are highly anionic polysaccharides capable of interacting with certain cationic proteins, such as (co)-factors of the coagulation cascade during clotting-inhibition processes. These mole
Revista Brasileira de Farmacognosia. Publicado em: 24/05/2012
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8. AvaliaÃÃo dos imunoparÃmetros do camarÃo branco Litopenaeus vannamei submetido a banhos de imersÃo com polissacarÃdeos sulfatados de Spirulina platensis / Evaluation of immune parameters of white shrimp Litopenaeus vannamei submitted to baths of immersion with sulfated polysaccharides Spirulina platensis
A aquicultura à uma das atividades produtoras de alimento que mais cresce a nÃvel mundial e o cultivo de camarÃes marinhos apresentou a maior taxa de crescimento mÃdia nos Ãltimos 50 anos. A busca por produÃÃo, muitas vezes, requer um incremento na densidade utilizada, levando os indivÃduos cultivados a condiÃÃes de estresse e ao surgimento de doen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/10/2011
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9. Fucana ativa via das Map quinases e inibe a proliferação de células de ovário de hamster chinês (CHO)
Fucana é um termo utilizado para denominar polissacarídeos sulfatados ricos em L-Fucose. As fucanas têm sido estudadas devido suas atividades farmacológicas: antitrombótica, antiproliferativa e antioxidante. Nós extraímos três frações de fucanas da alga Spatoglossum schröederi. Essas fucanas, denominadas de Fuc B 1, Fuc B 1.5 e Fuc B 2, apresentam
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011
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10. Propriedades na nocicepÃÃo e na inflamaÃÃo de uma fraÃÃo polissacarÃdica sulfatada da alga marinha Acanthophora muscoides / Properties in nociception and inflammation of a sulfated polisaccharidic fraction from the red marine alga Accanthophora muscoides
Herein, a sulfated polysaccharidic fraction obtained from the marine alga Acanthophora muscoides (AmII) was evaluated using models of nociception and inflammation. The systemic toxicity of the total sulfated polysaccharides was also assessed. The antinociceptive properties were assayed using the writhing test induced by acetic acid, the formalin and the hot
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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11. Atividades antinociceptiva e antiinflamatÃria dos polissacarÃdeos sulfatados da alga marinha vermelha Gracilaria cornea J. Agardh / Antinociceptive and anti-inflammatory activities of sulfated polusaccharides from the red marine alga Gracilaria cornea J. Agardh (1852) in animals
Marine algae are natural sources of sulfated polysaccharides possessing several biological activities (anticoagulant, antithrombotic, antinociceptive, anti-inflammatory etc.) and that exhibit minimal toxicity and are considered of great interest to the pharmaceutical and food industries. This study aimed to evaluate the effects of sulfated polysaccharides to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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12. Galactans: an overview of their most important sourcing and applications as natural polysaccharides
Since last decades, lot of biological and rheological properties of polysaccharides and oligosaccharides were described. Among them, galactans and more especially sulfated galactans from seaweeds have shown interesting and specific properties not only as texturing agents but also as biological active compounds on several organisms. This class of polysacchari
Brazilian Archives of Biology and Technology. Publicado em: 2011-12