Results 21 to 30 of about 1,407 (187)

Sulfated Galactofucans: An Outstanding Class of Fucoidans with Promising Bioactivities

Marine Drugs, 2022
Fucoidans encompass versatile and heterogeneous sulfated biopolysaccharides of marine origin, specifically brown algae and marine invertebrates. Their chemistry and bioactivities have been extensively investigated in the last few decades.
Ahmed Zayed, Jose Avila-Peltroche, Mona El-Aasr, Roland Ulber   +3 more
doaj   +1 more source

Structural Analysis and Anticoagulant Activities of the Novel Sulfated Fucan Possessing a Regular Well-Defined Repeating Unit from Sea Cucumber

Marine Drugs, 2015
Sulfated fucans, the complex polysaccharides, exhibit various biological activities. Herein, we purified two fucans from the sea cucumbers Holothuria edulis and Ludwigothurea grisea. Their structures were verified by means of HPGPC, FT-IR, GC–MS and NMR.
Mingyi Wu, Li Xu, Longyan Zhao, Chuang Xiao, Na Gao, Lan Luo, Lian Yang, Zi Li, Lingyun Chen, Jinhua Zhao   +9 more
doaj   +1 more source

Partial characterization and anticoagulant activity of a heterofucan from the brown seaweed Padina gymnospora [PDF]

, 2005
The brown algae Padina gymnospora contain different fucans. Powdered algae were submitted to proteolysis with the proteolytic enzyme maxataze. The first extract of the algae was constituted of polysaccharides contaminated with lipids, phenols, etc ...
Alves, L.g., Chavante, Suely Ferreira, Leite, E.l., Marques, C.t., Queiroz, K.c.s. de, Rocha, Hugo Alexandre Oliveira, Santos, M.g.l., Silva, T.m.a.   +7 more
core   +4 more sources

Heterofucans from Dictyota menstrualis have anticoagulant activity

Brazilian Journal of Medical and Biological Research, 2004
Fucan is a term used to denote a family of sulfated L-fucose-rich polysaccharides which are present in the extracellular matrix of brown seaweed and in the egg jelly coat of sea urchins.
I.R.L. Albuquerque, K.C.S. Queiroz, L.G. Alves, E.A. Santos, E.L. Leite, H.A.O. Rocha   +5 more
doaj   +1 more source

Polysaccharides from brown seaweed: Physicochemical properties, absorption in the intestine, and beneficial effects on intestinal barrier

Food Frontiers, Volume 4, Issue 4, Page 1547-1560, December 2023., 2023
Brown seaweed polysaccharides (BSP) exerted many benefits in enhancing the integrity and function of the intestinal epithelium barrier and modulating gut microbiota composition. The main mechanisms involved in BSP‐associated beneficial activities included reducing intestinal oxidative stress and inflammation, ameliorating TJs dysfunction, increasing ...
Wanzi Yao, Qiuhong Kong, Lijun You, Saiyi Zhong, Kseniya Hileuskaya   +4 more
wiley   +1 more source

Chemical Structures and Bioactivities of Sulfated Polysaccharides from Marine Algae

Marine Drugs, 2011
Sulfated polysaccharides and their lower molecular weight oligosaccharide derivatives from marine macroalgae have been shown to possess a variety of biological activities.
H. Stephen Ewart, Junzeng Zhang, Guangling Jiao, Guangli Yu   +3 more
doaj   +1 more source

Comparison of Physicochemical Characteristics and Anticoagulant Activities of Polysaccharides from Three Sea Cucumbers

Marine Drugs, 2013
In order to search for sulfated polysaccharides in different invertebrate connective tissues and to examine their biological activities, we have isolated three types of polysaccharides from the body wall of the three sea cucumbers Holothuria edulis ...
Shengmin Wang, Na Gao, Chuang Xiao, Feng Lu, Jingying Xiang, Wu Lian, Li Xu, Mingyi Wu, Lan Luo, Jinhua Zhao   +9 more
doaj   +1 more source

Isolation and culture of a marine bacterium degrading the sulfated fucans from marine brown algae. [PDF]

Mar Biotechnol (NY), 2006
Fucoidans are matrix polysaccharides from marine brown algae, consisting of an alpha-L-fucose backbone substituted by sulfate-ester groups and masked with ramifications containing other monosaccharide residues. In spite of their interest as biologically active compounds in a number of homologous and heterologous systems, no convenient sources with ...
Descamps V, Colin S, Lahaye M, Lahaye M, Jam M, Richard C, Potin P, Barbeyron T, Yvin JC, Kloareg B.   +9 more
europepmc   +6 more sources

miRNAs as Regulators of Antidiabetic Effects of Fucoidans [PDF]

, 2019
open access articleDiabetes mellitus is a metabolic disease with a high mortality rate worldwide. MicroRNAs (miRNAs), and other small noncoding RNAs, serve as endogenous gene regulators through binding to specific sequences in RNA and modifying gene ...
Arroo, R. R. J., El-Seed, Hesham, Ismail, Amin, Lai, Shanshan, Liu, Dan, Wu, Desheng, Xiao, Jianbo, Zhao, Chao, Zou, Xiaobo   +8 more
core   +1 more source

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