Results 21 to 30 of about 17,627 (184)

Evaluation of Sulfated Polysaccharides from the Brown Seaweed Dictyopteris Justii as Antioxidant Agents and as Inhibitors of the Formation of Calcium Oxalate Crystals

Molecules, 2013
Oxalate crystals and other types of crystals are the cause of urolithiasis, and these are related to oxidative stress. The search for new compounds with antioxidant qualities and inhibitors of these crystal formations is therefore necessary.
Karoline Rachel Teodosio Melo, Rafael Barros Gomes Camara, Moacir Fernandes Queiroz, Arthur Anthunes Jacome Vidal, Camila Renata Machado Lima, Raniere Fagundes Melo-Silveira, Jailma Almeida-Lima, Hugo Alexandre Oliveira Rocha   +7 more
doaj   +2 more sources

Physicochemical Characteristics and Anticoagulant Activities of the Polysaccharides from Sea Cucumber Pattalus mollis

Marine Drugs, 2019
Sulfated polysaccharides from sea cucumbers possess distinct chemical structure and various biological activities. Herein, three types of polysaccharides were isolated and purified from Pattalus mollis, and their structures and bioactivities were ...
Wenqi Zheng, Lutan Zhou, Lisha Lin, Ying Cai, Huifang Sun, Longyan Zhao, Na Gao, Ronghua Yin, Jinhua Zhao   +8 more
doaj   +2 more sources

Impact of sulfation pattern on the conformation and dynamics of sulfated fucan oligosaccharides as revealed by NMR and MD. [PDF]

Glycobiology, 2015
Sulfated fucans from sea urchin egg jelly express well-defined chemical structures that vary with species. This species specificity regulates the sperm acrosome reaction, a critical step to assure intra-specific fertilization. In addition, these polysaccharides are involved in other biological activities such as anticoagulation.
Queiroz IN, Wang X, Glushka JN, Santos GR, Valente AP, Prestegard JH, Woods RJ, Mourão PA, Pomin VH.   +8 more
europepmc   +4 more sources

Sulfated fucans, fresh perspectives: structures, functions, and biological properties of sulfated fucans and an overview of enzymes active toward this class of polysaccharide [PDF]

Glycobiology, 2003
Sulfated fucans, frequently referred to simply as fucans, constitute a class of polysaccharides first isolated in 1913. For many years fucans were regarded only as a potential source of l-fucose, although their anticoagulant activity was known. Even as the potent effects of fucans on physiological systems have become better characterized, structural ...
Olivier, Berteau, Barbara, Mulloy
openaire   +2 more sources

Anti-Inflammatory Activity of Fucan from Spatoglossum schröederi in a Murine Model of Generalized Inflammation Induced by Zymosan. [PDF]

Mar Drugs, 2023
Fucans from marine algae have been the object of many studies that demonstrated a broad spectrum of biological activities, including anti-inflammatory effects. The aim of this study was to verify the protective effects of a fucan extracted from the brown
Silva AKA, Souza CRM, Silva HMD, Jales JT, Gomez LAS, da Silveira EJD, Rocha HAO, Souto JT.   +7 more
europepmc   +2 more sources

Is there a correlation between structure and anticoagulant action of sulfated galactans and sulfated fucans? [PDF]

Glycobiology, 2002
We attempted to identify the specific structural features in sulfated galactans and sulfated fucans that confer anticoagulant activity. For this study we employed a variety of invertebrate polysaccharides with simple structures composed of well-defined units of oligosaccharides.
Mariana S, Pereira, Fábio R, Melo, Paulo A S, Mourão   +2 more
openaire   +2 more sources

Recent Progressions in Applications of Bioactive Polysaccharides in Food and Health Sciences: A Comprehensive Review. [PDF]

Food Sci Nutr
Polysaccharides play a pivotal role in the development of safe and healthy foods. They ameliorate fatigue, preserve the microflora of the gastrointestinal tract, and provide health for the gut in living organisms. These biopolymers are applied for the fabrication of breakthrough drug delivery systems and potential platforms in regenerative medicine ...
Chaitanya MVNL, Alhasso B, Alkhazali WH, Bishoyi AK, Oweis R, Jyothi SR, Kalia R, Maharana L, Chauhan AS, Sameer HN, Yaseen A, Athab ZH, Adil M, Narmani A, Farhood B.   +14 more
europepmc   +2 more sources

Structure, biology, evolution, and medical importance of sulfated fucans and galactans [PDF]

Glycobiology, 2008
Sulfated fucans and galactans are strongly anionic polysaccharides found in marine organisms. Their structures vary among species, but their major features are conserved among phyla. Sulfated fucans are found in marine brown algae and echinoderms, whereas sulfated galactans occur in red and green algae, marine angiosperms, tunicates (ascidians), and ...
Vitor H, Pomin, Paulo A S, Mourão
openaire   +2 more sources

Secretion of sulfated fucans by diatoms may contribute to marine aggregate formation [PDF]

Limnology and Oceanography, 2021
Abstract Microalgae produce copious amounts of structurally diverse polysaccharides, some are bound within cells and cell walls, while others are secreted into the surrounding seawater. A fraction of the secreted polysaccharides assembles into particles promoting aggregation and in turn formation of aggregates increases the export of ...
Guoyin Huang, Silvia Vidal‐Melgosa, Andreas Sichert, Stefan Becker, Yang Fang, Jutta Niggemann, Morten Hvitfeldt Iversen, Yi Cao, Jan‐Hendrik Hehemann   +8 more
openaire   +1 more source

Dynamic changes of peptidome and release of polysaccharide in sea cucumber (Apostichopus japonicus) hydrolysates depending on enzymatic hydrolysis approaches

Food Science and Human Wellness, 2022
Enzymatic hydrolysis has been widely used to produce bioactive hydrolysates from sea cucumber body wall. Here, inspired by the clarification of Apostichopus japonicus genome, we investigated the enzymatic hydrolysis of sea cucumber body wall by using the
Yanchao Wang, Yan Song, Yaoguang Chang, Yanyan Liu, Guangning Chen, Changhu Xue   +5 more
doaj   +1 more source