Results 1 to 10 of about 315,385 (314)

Superoxide Scavenging by Capers and Kaempferol, Measured by Hydrodynamic Voltammetry, Shows Kaempferol Synergistic Action with Vitamin C; Density Functional Theory (DFT) Results Support Experimental Kaempferol Catalytic Behavior Similar to Superoxide Dismutases (SODs) [PDF]

Molecules
In this work, we measured the antioxidant capacity of capers (Capparis spinosa L.) and an important component, kaempferol, as scavengers of the superoxide radical anion using hydrodynamic voltammetry with a rotating ring disk electrode (RRDE).
Miriam Rossi, Stuart Belli, Paloma Velez, Alessio Caruso, Camilla Morresi, Tiziana Bacchetti, Francesco Caruso   +6 more
doaj   +2 more sources

Constraints on superoxide mediated formation of manganese oxides

Frontiers in Microbiology, 2013
Manganese (Mn) oxides are among the most reactive sorbents and oxidants within the environment, where they play a central role in the cycling of nutrients, metals, and carbon.
Deric R Learman, Colleen M Hansel
exaly   +3 more sources

Depth-resolved photochemical production of hydrogen peroxide in the global ocean using remotely sensed ocean color

Frontiers in Remote Sensing, 2022
Hydrogen peroxide (H2O2) is an important reactive oxygen species (ROS) in natural waters, affecting water quality via participation in metal redox reactions and causing oxidative stress for marine ecosystems.
Yuting Zhu, Leanne C. Powers, David J. Kieber, William L. Miller   +3 more
doaj   +1 more source

Detection of Superoxide Alterations Induced by 5-Fluorouracil on HeLa Cells with a Cell-Based Biosensor

Biosensors, 2019
Background: In vitro cell culture monitoring can be used as an indicator of cellular oxidative stress for the assessment of different chemotherapy agents.
Sophia Mavrikou, Vasileios Tsekouras, Maria-Argyro Karageorgou, Georgia Moschopoulou, Spyridon Kintzios   +4 more
doaj   +1 more source

Vasomotor Regulation of Coronary Microcirculation by Oxidative Stress: Role of Arginase

Frontiers in Immunology, 2013
Overproduction of reactive oxygen species, i.e., oxidative stress, is associated with the activation of redox signaling pathways linking to inflammatory insults and cardiovascular diseases by impairing endothelial function and consequently blood flow ...
Lih eKuo, Lih eKuo, Lih eKuo, Travis eHein, Travis eHein   +4 more
doaj   +1 more source

Dark production of extracellular superoxide by the coral Porites astreoides and representative symbionts

Frontiers in Marine Science, 2016
The reactive oxygen species (ROS) superoxide has been implicated in both beneficial and detrimental processes in coral biology, ranging from pathogenic disease resistance to coral bleaching.
Tong Zhang, Julia Diaz, Caterina Brighi, Rachel Parsons, Sean McNally, Amy Apprill, Colleen Hansel   +6 more
doaj   +1 more source

Oxidative stress markers in intestinal mucosa of Tunisian inflammatory bowel disease patients

The Saudi Journal of Gastroenterology, 2013
Background / Aims: Inflammatory bowel diseases (IBDs), Crohn′s disease (CrD) and ulcerative colitis (UC), are chronic gastrointestinal inflammatory disorders.
Dorra Bouzid, Bochra Gargouri, Riadh Ben Mansour, Ali Amouri, Nabil Tahri, Saloua Lassoued, Hatem Masmoudi   +6 more
doaj   +1 more source

Inhibition of Aflatoxin Production by Paraquat and External Superoxide Dismutase in Aspergillus flavus

Toxins, 2019
Aflatoxin contamination of crops is a worldwide problem, and elucidation of the regulatory mechanism of aflatoxin production, for example relative to the oxidative⁻antioxidative system, is needed. Studies have shown that oxidative stress induced by
Tomohiro Furukawa, Shohei Sakuda
doaj   +1 more source

Fluorescent monitoring of copper-occupancy in His-ended catalytic oligo-peptides

Communicative & Integrative Biology, 2016
Controlled generation of reactive oxygen species (ROS) is widely beneficial to various medical, environmental, and agricultural studies. As inspired by the functional motifs in natural proteins, our group has been engaged in development of catalytically ...
Reina Inokuchi, Tomonori Kawano
doaj   +1 more source

Composto homeopático reduz a liberação de ânion superóxido pelas células mononucleares de ema (Rhea americana)

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2011
The action of the "Stress Factor Ostrich (Arenales - Fauna and Flora)" was tested in the release of superoxide anion by cells in the peripheral blood of rhea (Rhea americana).
W.R Bertoldo, J.L França, L.T.O Fernandes, A.C França-Botelho   +3 more
doaj   +1 more source