Results 21 to 30 of about 279,832 (297)

Protective Effects of Pterostilbene on Lipopolysaccharide-Induced Acute Lung Injury in Mice by Inhibiting NF-κB and Activating Nrf2/HO-1 Signaling Pathways

open access: yesFrontiers in Pharmacology, 2021
Pterostilbene (PTER) is a kind of stilbene compound with biological activity isolated from plants such as red sandalwood, blueberry and grape. It has anti-tumor, anti-bacterial, anti-oxidation and other pharmacological activities. However, the underlying
Yong Zhang   +8 more
doaj   +1 more source

Critical Role of TLR4 on the Microglia Activation Induced by Maternal LPS Exposure Leading to ASD-Like Behavior of Offspring

open access: yesFrontiers in Cell and Developmental Biology, 2021
Objective: To investigate the role of TLR4 on the microglia activation in the pre-frontal cortex, which leads to autism-like behavior of the offspring induced by maternal lipopolysaccharide (LPS) exposure.Methods: Pregnant TLR4−/− (knockout, KO) and WT ...
Lu Xiao   +16 more
doaj   +1 more source

Lipopolysaccharides in diazotrophic bacteria [PDF]

open access: yesFrontiers in Cellular and Infection Microbiology, 2014
Biological nitrogen fixation (BNF) is a process in which the atmospheric nitrogen (N2) is transformed into ammonia (NH3) by a select group of nitrogen-fixing organisms, or diazotrophic bacteria. In order to furnish the biologically useful nitrogen to plants, these bacteria must be in constant molecular communication with their host plants.
openaire   +4 more sources

A DedA Family Membrane Protein Is Required for Burkholderia thailandensis Colistin Resistance

open access: yesFrontiers in Microbiology, 2019
Colistin is a “last resort” antibiotic for treatment of infections caused by some multidrug resistant Gram-negative bacterial pathogens. Resistance to colistin varies between bacterial species. Some Gram-negative bacteria such as Burkholderia spp.
Pradip R. Panta   +10 more
doaj   +1 more source

The atypical lipopolysaccharide ofFrancisella [PDF]

open access: yesCarbohydrate Research, 2013
Bacterial lipopolysaccharides (LPSs) are ubiquitous molecules that are prominent components of the outer membranes of most gram-negative bacteria. Genetic and structural characterizations of Francisella LPS have revealed substantial differences when compared to more commonly studied LPSs of the Enterobacteriaceae. This review discusses both the general
Dennis L. Kasper, Nihal A. Okan
openaire   +2 more sources

A colorimetric estimation of lipopolysaccharides

open access: yesFEBS Letters, 1971
The lipopolysaccharides of Gram-negative bacteria are not confined to cell walls but may accumulate in culture fluids of cells grown under certain conditions [l-3] . Study of this accumulation has been aided by development of a calorimetric estimation for lipopolysaccharides which is specific, sensitive and technically simple in comparison with methods
J. Janda, Elizabeth Work
openaire   +3 more sources

Antioxidant capacity of Typha angustifolia extracts and two active flavonoids

open access: yesPharmaceutical Biology, 2017
Context: The pollen of Typha angustifolia L. (Typhaceae) has been used as a traditional Chinese medicine for improving the microcirculation and promoting wound healing.
Peidong Chen   +4 more
doaj   +1 more source

Hyperbaric oxygen therapy: A new look on treating stroke and traumatic brain injury

open access: yesBrain Circulation, 2019
Although hyperbaric oxygen therapy (HBOT) is common as a treatment for injuries, this study aimed to research the ability of HBOT in preconditioning to diminish any potential damage. The hypothesis stated that HBOT preconditioning alleviated the death of
Bella Gonzales-Portillo   +4 more
doaj   +1 more source

EOP, a Newly Synthesized Ethyl Pyruvate Derivative, Attenuates the Production of Inflammatory Mediators via p38, ERK and NF-κB Pathways in Lipopolysaccharide-Activated BV-2 Microglial Cells

open access: yesMolecules, 2014
Microglia-induced neuroinflammation is an important pathological mechanism influencing various neurodegenerative disorders. Excess activation of microglia produces a myriad of proinflammatory mediators that decimate neurons.
Soon Min   +7 more
doaj   +1 more source

IL-22 regulates endometrial regeneration by enhancing tight junctions and orchestrating extracellular matrix

open access: yesFrontiers in Immunology, 2022
The uterine endometrium uniquely regenerates after menses, postpartum, or after breaks in the uterine layer integrity throughout women’s lives. Direct cell–cell contacts ensured by tight and adherens junctions play an important role in endometrial ...
Umida Ganieva   +6 more
doaj   +1 more source

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