Results 91 to 100 of about 80,205 (222)

Decreased Glutathione Peroxidase Activities with Concomitant Increased Oxidized Glutathione Levels among Residents in an Arsenic Contaminated Community of Southern Thailand

open access: yesWalailak Journal of Science and Technology, 2011
Glutathione peroxidase (GPx) and glutathione are important antioxidants responsible for the scavenging of reactive oxygen species (ROS). It has been shown that changes in GPx activities and glutathione levels are associated with various diseases ...
Warangkana CHUNGLOK
doaj   +1 more source

New Perspectives on Semiconducting Conjugated Oligomers for Neuromodulation in Hydra vulgaris

open access: yesAdvanced Materials Interfaces, EarlyView.
Semiconducting organic compounds, thiophene‐based, modify the rhythmic electrical activity of the cnidarian Hydra vulgaris acting on specific neuronal circuits. The ETE‐S trimer also forms electronically conducting wires in the living tissues of the animal.
Giuseppina Tommasini   +7 more
wiley   +1 more source

Delayed treatment with nimesulide reduces measures of oxidative stress following global ischemic brain injury in gerbils [PDF]

open access: yesNeuroscience Research 47(2): 245-253 (2003), 2007
Metabolism of arachidonic acid by cyclooxygenase is one of the primary sources of reactive oxygen species in the ischemic brain. Neuronal overexpression of cyclooxygenase-2 has recently been shown to contribute to neurodegeneration following ischemic injury.
arxiv  

Synthesis of Bimetallic (Iron–Cobalt) Single Atom Catalysts for Electrochemical Detection of Nitrites

open access: yesAdvanced Materials Technologies, EarlyView.
A CO2 laser‐assisted solid‐state synthesis of a bimetallic single‐atom catalyst is presented. The resulting material consists of a 3D porous graphene support with iron and cobalt atoms anchored as single atoms. Through electrochemical methods, the material's efficiency is demonstrated in the sensitive and selective determination of nitrite, mimicking ...
Guillermo Tostado‐Blazquez   +5 more
wiley   +1 more source

Selective vulnerability to kainate-induced oxidative damage in different rat brain regions [PDF]

open access: yesJournal of Applied Toxicology 21(5): 403-407 (2001), 2007
Some markers of oxidative injury were measured in different rat brain areas (hippocampus, cerebral cortex, striatum, hypothalamus, amygdala/piriform cortex and cerebellum) after the systemic administration of an excitotoxic dose of kainic acid (KA, 9 mg kg(-1) i.p.) at two different sampling times (24 and 48 h).
arxiv  

Pseudomonas aeruginosa gshA Mutant Is Defective in Biofilm Formation, Swarming, and Pyocyanin Production

open access: yesmSphere, 2018
Pseudomonas aeruginosa is a ubiquitous Gram-negative bacterium that can cause severe opportunistic infections. The principal redox buffer employed by this organism is glutathione (GSH). To assess the role of GSH in the virulence of P.
Tricia A. Van Laar   +5 more
doaj   +1 more source

Progress in Surface Plasmon and Other Resonance Biosensors for Biomedical Applications

open access: yesAdvanced Materials Technologies, EarlyView.
This is the shortened version: Recent advancements in surface plasmon resonance and other optical resonance biosensors for biomedical applications are presented. Advanced sensing strategies are examined for the detection of diverse analytes, integration of nanomaterials and machine learning, and emerging nonplasmonic modes like guided mode resonance ...
Faten Bashar Kamal Eddin   +8 more
wiley   +1 more source

Pt nanoparticles dispersed in a metal-organic framework as peroxidase mimics for colorimetric detection of GSH [PDF]

open access: yesarXiv
Metal-organic skeleton materials have been widely used in catalysis with their porous structure and adsorption properties. Precious metal nanoparticles have good catalytic properties. If the noble metal nanoparticles are adsorbed on the MOFs surface, the active sites can be increased and the catalytic effect of the materials can be greatly improved. We
arxiv  

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