Results 21 to 30 of about 917 (187)

Jasmonates disrupt carrageenan synthesis during carposporogenesis in the red seaweed Grateloupia imbricata

Frontiers in Marine Science, 2023
In this study, we monitored changes in cell wall sulfated galactans in the red seaweed Grateloupia imbricata after the rapid (48 h) induction of cystocarp maturation and carpospore development by the volatile hormone methyl jasmonate (MEJA). Synthesis of
Diana Del Rosario-Santana, Rafael Robaina, Pilar Garcia-Jimenez   +2 more
doaj   +2 more sources

Preventive Effect of Depolymerized Sulfated Galactans from Eucheuma serra on Enterotoxigenic Escherichia coli-Caused Diarrhea via Modulating Intestinal Flora in Mice [PDF]

Marine Drugs, 2021
In this work, the preventive effect of depolymerized sulfated polysaccharides from Eucheuma serra (DESP) on bacterial diarrhea by regulating intestinal flora was investigated in vivo.
Yu Ma, Qian Zhang, Wenqiang Liu, Zhaohua Chen, Chao Zou, Linglin Fu, Yanbo Wang, Yixiang Liu   +7 more
doaj   +2 more sources

Repeated (Weekly) Intra-Articular Injections of Sulfated Galactans Attenuate Cartilage Degeneration in a Rat Model of Osteoarthritis. [PDF]

J Orthop Res
Knee osteoarthritis (OA) is characterized by progressive cartilage degeneration and remains a major cause of joint dysfunction with limited disease‐modifying therapies. This study evaluated the therapeutic potential of sulfated galactans (SG) extracted from Gracilaria fisheri in a rat OA model induced by anterior cruciate ligament transection and ...
Srianake N, Thongsuk A, Desclaux S, Phuagpan T, Sriwong J, Kongchanagul A, Himakhun W, Hemstapat R, Wongprasert K.   +8 more
europepmc   +2 more sources

Structural Diversity in Galactans From Red Seaweeds and Its Influence on Rheological Properties [PDF]

Frontiers in Plant Science, 2020
Galactans are important components of many plant cell walls. Besides, they are the major polysaccharides in extracellular matrixes from different seaweeds, and other marine organisms, which have an acidic character due to the presence of sulfate groups ...
Marina Ciancia, María Cristina Matulewicz, María Cristina Matulewicz, Rando Tuvikene   +3 more
doaj   +2 more sources

Marine Non-Glycosaminoglycan Sulfated Glycans as Potential Pharmaceuticals

Pharmaceuticals, 2015
Sulfated fucans (SFs) and sulfated galactans (SGs) are currently the marine non-glycosaminoglycan (GAG) sulfated glycans most studied in glycomics.
Vitor H. Pomin
doaj   +2 more sources

Occurrence of sulfated galactans in marine angiosperms: evolutionary implications [PDF]

Glycobiology, 2004
We report for the first time that marine angiosperms (seagrasses) possess sulfated polysaccharides, which are absent in terrestrial and freshwater plants. The structure of the sulfated polysaccharide from the seagrass Ruppia maritima was determined. It is a sulfated D-galactan composed of the following regular tetrasaccharide repeating unit: [3-beta-D ...
Ana Paula Valente, Leonardo R Andrade, Paulo A S Mourao   +2 more
exaly   +3 more sources

Diversity of Sulfated Polysaccharides From Cell Walls of Coenocytic Green Algae and Their Structural Relationships in View of Green Algal Evolution

Frontiers in Plant Science, 2020
Seaweeds biosynthesize sulfated polysaccharides as key components of their cell walls. These polysaccharides are potentially interesting as biologically active compounds.
Marina Ciancia, Paula Virginia Fernández, Frederik Leliaert, Frederik Leliaert   +3 more
doaj   +3 more sources

Comparative Study of Sulfated Polysaccharides From Ulva Lactuca Grown in Tunisia and Morocco: in Vitro Antioxidant Activity and in Vivo Anti-Inflammatory and Anti-Ulcer Effects. [PDF]

Chem Biodivers
ABSTRACT This study presents a comparative analysis of sulfated polysaccharides extracted from Ulva lactuca collected in Tunisia (PSUT) and Morocco (PSUM). FTIR confirmed the presence of sulfate groups, while GC‐MS identified diverse sugar components. Both polysaccharides showed strong antioxidant activity, with DPPH and ABTS radical scavenging rates ...
Kharrat N, Touhamia Y, Abdallah Kolsi RB, Hamden K, Said RB, Lahcen TOB, Salah HB, Allouche N.   +7 more
europepmc   +2 more sources

The Protective Role of Sulfated Polysaccharides from Green Seaweed Udotea flabellum in Cells Exposed to Oxidative Damage [PDF]

Marine Drugs, 2018
Seaweed is a rich source of bioactive sulfated polysaccharides. We obtained six sulfated polysaccharide-rich fractions (UF-0.3, UF-0.5, UF-0.6, UF-0.7, UF-1.0, and UF-2.0) from the green seaweed Udotea flabellum (UF) by proteolytic digestion followed by ...
Fernando Bastos Presa, Maxsuell Lucas Mendes Marques, Rony Lucas Silva Viana, Leonardo Thiago Duarte Barreto Nobre, Leandro Silva Costa, Hugo Alexandre Oliveira Rocha   +5 more
doaj   +3 more sources

Galactan polysaccharides extraction from invasive algae Asparagopsis armata (Harvey) of the Peniche coast.

Frontiers in Marine Science, 2014
Marine macroalgae are important sources of sulfated polysaccharides with different structure according to each species of algae. These compounds from the seaweeds of the division Rhodophyta are mainly galactans consisting entirely of galactose or ...
Marcia Sofia Santos
doaj   +2 more sources