Results 201 to 210 of about 11,665 (263)

A Phosphorylation‐Dependent Partner‐Switching‐Like Module Regulates a Glycosyltransferase Required for Heterocyst Polysaccharide Layer Formation in Anabaena sp. Strain PCC 7120

Molecular Microbiology, EarlyView.
The glycosyltransferase All4160 is regulated by the reversible phosphorylation of Ser74. The kinase Alr3423 phosphorylates and inactivates All4160, while the SpoIIE‐like phosphatase HenR restores its activity through dephosphorylation. A nonphosphorylatable variant of All4160 bypasses the need for HenR, which demonstrates that a phosphorylation ...
Mai Harada, Satoshi Matsuoka, Shigeki Ehira   +2 more
wiley   +1 more source

Porphyromonas gingivalis GroEL exacerbates orthotopic allograft transplantation vasculopathy via impairment of endothelial cell function

Molecular Oral Microbiology, EarlyView.
Abstract Orthotopic allograft transplantation (OAT) is a significant approach to addressing organ failure. However, persistent immune responses to the allograft affect chronic rejection, which induces OAT vasculopathy (OATV) and organ failure. Porphyromonas gingivalis can infiltrate remote organs via the bloodstream, thereby intensifying the severity ...
Chien‐Sung Tsai, Chun‐Yao Huang, Yi‐Ting Tsai, Chun‐Ming Shih, Ze‐Hao Lai, Chen‐Wei Liu, Yi‐Wen Lin, Feng‐Yen Lin   +7 more
wiley   +1 more source

Antimicrobial photodynamic therapy in Candida spp. biofilms: In vitro and in vivo protocols

Photochemistry and Photobiology, EarlyView.
This review addresses the critical challenges in translating in vitro antimicrobial photodynamic therapy protocols to in vivo models, with a particular focus on the hurdles of standardization. The vast diversity in photosensitizers and light parameters across different target cells and models requires a rigorous optimization process.
Lívia Mara Alves Figueiredo‐Godoi, Ana Júlia Barbosa Tomé, Cristina Kurachi   +2 more
wiley   +1 more source

Engineered surface strategies to manage dental implant‐related infections

Periodontology 2000, EarlyView.
Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza, Bruna E. Nagay, Rodrigo Martins, Martinna Bertolini, Jamil A. Shibli, Conrado Aparicio, Magda Feres, Valentim A. R. Barão   +7 more
wiley   +1 more source

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Sulfated Seaweed Polysaccharides

2021
Mankind has used natural resources for many different applications, from food and clothes to drugs, but only recently is giving the due attention to the need for a responsible management of these resources toward sustainability. One of the approaches is to take the most out of its resources, addressing the several components of natural resources, which
Inácio, Ana Rita Matos, Carvalho, Ana C., Oliveira, Catarina, Reys, Lara Priscila Lopes, Silva, Simone S., Neves, N. M., Martins, Albino, Reis, R. L., Silva, Tiago H.   +8 more
openaire   +1 more source

Sulfation of Polysaccharides using Monomethyl Sulfate

Journal of Carbohydrate Chemistry, 2000
ABSTRACT The polysaccharides, curdlan, starch and dextran were sulfated when heated in DMSO with sodium methyl sulfate and a catalytic amount of H2SO4 or with pyridinium methyl sulfate. Use of diminished pressure and anhydrous CaSO4 as a desiccant improved the degree of sulfation and recovery.
Ryo Takano, Tomomi Nagai, Xiaofen Wu, Xin-Yan Xu, Nguyen Tien Huy, Kaeko Kamei, Saburo Hara   +6 more
openaire   +1 more source

Secretion of Sulfated Polysaccharides by the Gastric Mucosa

Digestion, 2009
Presence of chondroitin-4-sulfate has been demonstrated in the gastric fundic juice of the dog. It is secreted by the chief peptic cells. Chondroitin sulfate-like material was also observed in the pyloric cells of the same animal. In the dog, chondroitin-4- sulfate secretion by the fundus is increased during cholinergic stimulation but not during ...
Woussen Colle, Marie-Claire, Wlllems, G., Bremen, Jacques, Ley, Robert, Verbeustel, Suzanne, Gerard, André, De Graef, Jacques   +6 more
openaire   +3 more sources

Antioxidant activities of sulfated pumpkin polysaccharides

International Journal of Biological Macromolecules, 2019
Pumpkin polysaccharide was extracted by hot water extraction method. It was modified with chlorosulfonic acid-pyridine to obtain sulfated pumpkin polysaccharides (SP1, SP2) with different degrees of substitution, which was 0.35 and 0.65, respectively.
Ling, Chen, Gangliang, Huang
openaire   +2 more sources