Results 11 to 20 of about 1,886 (192)

A Repeating Sulfated Galactan Motif Resuscitates Dormant Micrococcus luteus Bacteria. [PDF]

open access: yesAppl Environ Microbiol, 2018
ABSTRACT Only a small fraction of bacteria can autonomously initiate growth on agar plates. Nongrowing bacteria typically enter a metabolically inactive dormant state and require specific chemical trigger factors or signals to exit this state and to resume growth.
Böttcher T, Szamosvári D, Clardy J.
europepmc   +4 more sources

Characterization and immunomodulatory activity of sulfated galactan from the red seaweed Gracilaria fisheri. [PDF]

open access: yesInt J Biol Macromol, 2021
Polysaccharides from the red seaweed Gracilaria fisheri possess many functions, which include antioxidant, antiviral, and antibacterial activities. However, detailed data on their immunomodulatory activities are scarce. Here, we isolated sulfated galactans (SG) from G. fisheri. We found that the predominant SG from G.
Khongthong S   +5 more
europepmc   +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]

open access: yesChem 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   +7 more
europepmc   +2 more sources

Porphyra tenera Protects against PM2.5-Induced Cognitive Dysfunction with the Regulation of Gut Function

open access: yesMarine Drugs, 2022
To evaluate the biological effects of Porphyra tenera (P. tenera), we tried to confirm the possibility that the intake of P. tenera could modulate cognitive and intestinal functions in PM2.5-induced cognitive decline mice. P.
Seon Kyeong Park   +9 more
doaj   +1 more source

Advances in Research on Antiviral Activities of Sulfated Polysaccharides from Seaweeds

open access: yesPharmaceuticals, 2022
In recent years, various viral diseases have suddenly erupted, resulting in widespread infection and death. A variety of biological activities from marine natural products have gradually attracted the attention of people.
Qiang Wei   +7 more
doaj   +1 more source

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

open access: yesJ 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   +8 more
europepmc   +2 more sources

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

open access: yesGlycobiology, 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 ...
Rafael S, Aquino   +4 more
openaire   +2 more sources

Antiviral activity of marine sulfated glycans against pathogenic human coronaviruses

open access: yesScientific Reports, 2023
Great interest exists towards the discovery and development of broad-spectrum antivirals. This occurs due to the frequent emergence of new viruses which can also eventually lead to pandemics.
Mary Zoepfl   +4 more
doaj   +1 more source

In Vitro Pro-angiogenic Activity of Porphyran Prepared from Porphyra yezoensis in Human Umbilical Vein Endothelial Cells (HUVECs) Model [PDF]

open access: yesShipin Kexue, 2023
In this study, the total sugar, protein, 3,6-anhydro galactose and sulfate contents, apparent molecular mass and monosaccharide composition of porphyran isolated from Porphyra yezoensis were analyzed.
FENG Fengzhen, ZHENG Mingjing, HONG Tao, LI Zhipeng, DU Xiping, ZHU Yanbing, NI Hui, JIANG Zedong
doaj   +1 more source

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