Results 11 to 20 of about 164,679 (343)

Gene expression of pro-inflammatory (IL-8, IL-18, TNF-α, and IFN-γ) and anti-inflammatory (IL-10) cytokines in the duodenum of broiler chickens exposed to lipopolysaccharides from Escherichia coli and Bacillus subtilis [PDF]

Veterinary World, 2023
Background and Aim: Intestinal infections are associated with Gram-negative bacteria like Escherichia coli. When eliminated by treatments during replication, E.
Sandra Paola Rodríguez, Albeiro López Herrera, Jaime Eduardo Parra   +2 more
doaj   +1 more source

Esculetin Alleviates Acute Liver Failure following Lipopolysaccharide/D-Galactosamine in Male C57BL/6 Mice [PDF]

Iranian Journal of Medical Sciences, 2021
Background: Acute liver failure (ALF) is a fatal clinical situation that rapidly leads to the loss of normal liver function. Esculetin is a natural herbal compound used for the management of various diseases such as cardiovascular and renal disorders. In
Seyed-Mahdi Mohamadi-Zarch, Tourandokht Baluchnejadmojarad, Davood Nourabadi, Samira Ramazi, Morteza Nazari-Serenjeh, Mehrdad Roghani   +5 more
doaj   +1 more source

АNTIVIRAL ACTIVITY OF LIPOPOLYSACCHARIDES OF Pseudomonas chlororaphis subsp. aureofaciens [PDF]

Biotechnologia Acta, 2013
Lipopolysaccharides and their fractions were obtained from strains Pseudomonas chlororaphis subsp. aureofaciens UCM В-111 and UCM В-306 — components of insectofungicidal gaupsin biopreparation; their activity against tobacco mosaic virus has been studied.
Е. А. Kiprianova, L. D. Varbanets, V. V. Shepelevich, S. I. Voichuk   +3 more
doaj   +1 more source

Exploration of Galectin Ligands Displayed on Gram-Negative Respiratory Bacterial Pathogens with Different Cell Surface Architectures

Biomolecules, 2021
Galectins bind various pathogens through recognition of distinct carbohydrate structures. In this work, we examined the binding of four human galectins to the Gram-negative bacteria Klebsiella pneumoniae (Kpn) and non-typeable Haemophilus influenzae ...
María A. Campanero-Rhodes, Ioanna Kalograiaki, Begoña Euba, Enrique Llobet, Ana Ardá, Jesús Jiménez-Barbero, Junkal Garmendia, Dolores Solís   +7 more
doaj   +1 more source

LpxT-Dependent Phosphorylation of Lipid A in Escherichia coli Increases Resistance to Deoxycholate and Enhances Gut Colonization

Frontiers in Microbiology, 2021
The cell surface of Gram-negative bacteria usually exhibits a net negative charge mostly conferred by lipopolysaccharides (LPS). This property sensitizes bacterial cells to cationic antimicrobial peptides, such as polymyxin B, by favoring their binding ...
Xudong Tian, Guillaume Manat, Elise Gasiorowski, Elise Gasiorowski, Rodolphe Auger, Samia Hicham, Dominique Mengin-Lecreulx, Ivo Gomperts Boneca, Thierry Touzé   +8 more
doaj   +1 more source

Protective effects of Bacillus licheniformis on growth performance, gut barrier functions, immunity and serum metabolome in lipopolysaccharide-challenged weaned piglets

Frontiers in Immunology, 2023
Bacillus licheniformis (B. licheniformis) is a well-accepted probiotic that has many benefits on both humans and animals. This study explored the effects of B. licheniformis on growth performance, intestinal mucosal barrier functions, immunity as well as
Xiaorong Yu, Zhenglie Dai, Guangtian Cao, Zhenchuan Cui, Ruiqiang Zhang, Yinglei Xu, Yanping Wu, Caimei Yang   +7 more
doaj   +1 more source

Protective role of curcumin against lipopolysaccharide-induced inflammation and apoptosis in human neutrophil [PDF]

Anesthesia and Pain Medicine, 2020
Background Sepsis, an uncontrolled host response to infection, may be life-threatening organ injury. Neutrophils play a critical role in regulation of host immune response to infection.
Kyu Bum Cho, Cheon Hee Park, Joungmin Kim, Tran Duc Tin, Sang-Hyun Kwak   +4 more
doaj   +1 more source

Metabolic Endotoxemia, Feeding Studies and the Use of the Limulus Amebocyte (LAL) Assay; Is It Fit for Purpose?

Diagnostics, 2020
The Limulus amebocyte assay (LAL) is increasingly used to quantify metabolic endotoxemia (ME), particularly in feeding studies. However, the assay was not intended to assess plasma at levels typically seen in ME. We aimed to optimize and validate the LAL
Karma Pearce, Dianne Estanislao, Sinan Fareed, Kelton Tremellen   +3 more
doaj   +1 more source

Lipopolysaccharide Endotoxins [PDF]

Annual Review of Biochemistry, 2002
▪ Abstract  Bacterial lipopolysaccharides (LPS) typically consist of a hydrophobic domain known as lipid A (or endotoxin), a nonrepeating “core” oligosaccharide, and a distal polysaccharide (or O-antigen). Recent genomic data have facilitated study of LPS assembly in diverse Gram-negative bacteria, many of which are human or plant pathogens, and have ...
Christian R H, Raetz, Chris, Whitfield
openaire   +2 more sources

Effects of Lipopolysaccharide from Porphyromonas gingivalis and Escherichia coli on Gene Expression Levels of Toll-like Receptors and Inflammatory Cytokines in Human Dental Pulp Stem Cells [PDF]

Iranian Journal of Immunology, 2022
Background: Periodontal diseases originate from a group of oral inflammatory infections initiated by oral pathogens. Among these pathogens, Gram-negative bacteria such as p. gingivalis play a major role in chronic periodontitis. P.
Hanieh Mojtahedi, Nikoo Hossein-khannazer, Seyed Mahmoud Hashemi, Mina Masoudnia, Monireh Askarzadeh, Arash Khojasteh, Mandana Sattari   +6 more
doaj   +1 more source