Results 11 to 20 of about 10,484 (294)

From Lithium and Sodium Superoxides to Singlet-Oxygen - Insights into the Mechanism of Dissociation Using SHARC-MD. [PDF]

open access: yesChemphyschem
The formation of highly reactive singlet oxygen from alkaline superoxides presents an important reactivity of this component class. Investigations of the reaction paths such as disproportionation of LiO 2 and NaO 2 have been presented.
Pietruschka DS   +4 more
europepmc   +3 more sources

Correlation-driven metal-insulator transition in unconventional magnetic metal superoxides [PDF]

open access: yes, 2023
Using first-principles electronic structure calculations, we have extensively studied the electronic and magnetic properties of alkali sodium superoxide (NaO2) in comparison with that of potassium superoxide (KO2) both at high and low temperatures. These
Biswas, Sarajit   +2 more
core   +1 more source

Interrelated influence of superoxides and free fatty acids over mitochondrial uncoupling in skeletal muscle [PDF]

open access: yes, 2008
Mitochondrial uncoupling protein 3 (UCP3)-mediated uncoupling has been postulated to depend on several factors, including superoxides, free fatty acids (FFAs), and fatty acid hydroperoxides and/or their derivatives.
de Lange, Pieter   +6 more
core   +2 more sources

COX-2-derived prostanoids and oxidative stress additionally reduce endothelium-mediated relaxation in old type 2 diabetic rats. [PDF]

open access: yesPLoS ONE, 2013
Endothelial dysfunction in resistance arteries alters end organ perfusion in type 2 diabetes. Superoxides and cyclooxygenase-2 (COX-2) derivatives have been shown separately to alter endothelium-mediated relaxation in aging and diabetes but their role in
Emilie Vessières   +6 more
doaj   +1 more source

Bee Venom Induces Acute Inflammation through a H2O2-Mediated System That Utilizes Superoxide Dismutase

open access: yesToxins, 2022
Venoms from venomous arthropods, including bees, typically induce an immediate local inflammatory response; however, how venoms acutely elicit inflammatory response and which components induce an inflammatory response remain unknown.
Kwang-Sik Lee   +10 more
doaj   +1 more source

Scavenging of superoxide by a membrane-bound superoxide oxidase [PDF]

open access: yesNature Chemical Biology, 2018
Superoxide is a reactive oxygen species produced during aerobic metabolism in mitochondria and prokaryotes. It causes damage to lipids, proteins and DNA and is implicated in cancer, cardiovascular disease, neurodegenerative disorders and aging. As protection, cells express soluble superoxide dismutases, disproportionating superoxide to oxygen and ...
Lundgren, Camilla A K   +9 more
openaire   +5 more sources

Regulatory effect of bacterial melanin on the isoforms of new superoxide-producing associates from rat tissues in rotenone-induced Parkinson’s disease

open access: yesBMC Neuroscience, 2023
According to recent research, selective neuronal vulnerability in Parkinson’s disease (PD) results from several phenotypic traits, including calcium-dependent, feed-forward control of mitochondrial respiration leading to elevated reactive oxygen species ...
Margarita Danielyan   +8 more
doaj   +1 more source

Superoxide Dismutases and Superoxide Reductases

open access: yesChemical Reviews, 2014
Superoxide, O2•–, is formed in all living organisms that come in contact with air, and, depending upon its biological context, it may act as a signaling agent, a toxic species, or a harmless intermediate that decomposes spontaneously. Its levels are limited in vivo by two different types of enzymes, superoxide reductase (SOR) and superoxide dismutase ...
Sheng, Yuewei   +6 more
openaire   +2 more sources

Pathobiochemical pathways of redox imbalance in the neurological long-term effects of COVID-19 and the role of chondroitin sulfate in the redox status restoration

open access: yesНеврология, нейропсихиатрия, психосоматика, 2021
The review examines the epidemiology and clinical manifestations of COVID-19 long-term neurological effects, main pathobiochemical mechanisms, and integrated circuits of redox status impairment in COVID-19, such as the decrease of adenosine triphosphate ...
I. V. Sarvilina   +2 more
doaj   +1 more source

Metallic Aluminum Suboxides with Ultrahigh Electrical Conductivity at High Pressure

open access: yesResearch, 2022
Aluminum, as the most abundant metallic elemental content in the Earth’s crust, usually exists in the form of alumina (Al2O3). However, the oxidation state of aluminum and the crystal structures of aluminum oxides in the pressure range of planetary ...
Tianheng Huang   +9 more
doaj   +1 more source

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