Results 41 to 50 of about 125,833 (306)

Analysis of lipopolysaccharide antigens of Treponema hyodysenteriae [PDF]

, 1989
Lipopolysaccharide (LPS) extracts obtained from Treponema hyodysenteriae of serogroups A, B, D and E, and from T. innocens were examined by SDS-polyacrylamide gel electrophoresis (SDS-PAGE), silver-staining, and immunoblotting with hyperimmune rabbit ...
Hampson, D.J., Mhoma, J.R.L., Combs, B.
core   +2 more sources

The serological grouping system for Serpulina (Treponema) hyodysenteriae [PDF]

, 1992
Lipopolysaceharide from serostrains of Serpulina (Treponema) hyodysenteriae for serogroups A to I was characterized using sodium dodecylsulphate polyacrylamide gel electrophoresis and silver staining.
Lau, T.T.A., Hampson, D.J.
core   +2 more sources

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

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Alcohol Abstinence Does Not Fully Reverse Abnormalities of Mucosal-Associated Invariant T Cells in the Blood of Patients With Alcoholic Hepatitis [PDF]

, 2019
OBJECTIVES: Alcoholic hepatitis (AH) develops in approximately 30% of chronic heavy drinkers. The immune system of patients with AH is hyperactivated, yet ineffective against infectious diseases.
Bolte, Bottcher, Chan, Chayanupatkul, Chiba, Corbett, Cosgrove, Degre, Dhanda, Dusseaux, Eckle, Fergusson, Fung, Gao, Gao, Gerart, Hegde, Hengst, Jampana, Jeffery, Jiang, Kjer-Nielsen, Kurioka, Leclercq, Leeansyah, Leeansyah, Li, Liangpunsakul, Liangpunsakul, Loh, Markwick, Mutlu, Nagy, O'Shea, Pasala, Patel, Puri, Rao, Reantragoon, Riva, Saberi, Slichter, Spaan, Tang, Tilloy, Ussher, van Wilgenburg, Wong, Yong   +48 more
core   +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

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Anti-cytokine Storm Activity of Fraxin, Quercetin, and their Combination on Lipopolysaccharide-Induced Cytokine Storm in Mice: Implications in COVID-19 [PDF]

Iranian Journal of Medical Sciences
Background: Cytokine release syndrome (CRS) is the leading cause of mortality in advanced stages of coronavirus patients. This study examined the prophylactic effects of fraxin, quercetin, and a combination of fraxin+quercetin (FQ) on lipopolysaccharide ...
Nada Sahib Shaker, Hayder B Sahib, Nibras J Tahseen   +2 more
doaj   +1 more source

The Effects of Flecainide Acetate on Inflammatory-Immune Response in Lipopolysaccharide-Stimulated Neutrophils and on Mortality in Septic Rats [PDF]

Acute and Critical Care, 2018
Background Flecainide acetate is a drug used primarily for cardiac arrhythmia. Some studies also imply that flecainide acetate has the potential to regulate inflammatory-immune responses; however, its mechanism of action is contended.
Shi Young Chung, Jinyoung Kim, Hong Bum Bae, Tran Duc Tin, Wan Ju, Sang Hyun Kwak   +5 more
doaj   +1 more source

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

FEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho, Rebecca Schmitt, Aneesha Dasgupta, Alexandra Ducharme, Jason Doles   +4 more
wiley   +1 more source