Results 11 to 20 of about 620,257 (337)

Cigarette Smoke Extract Produces Superoxide in Aqueous Media by Reacting with Bicarbonate

Toxics, 2021
The toxicity of cigarette smoke (CS) is largely attributed to its ability to generate reactive oxygen species (ROS). Reportedly, CS generates superoxide in cell culture systems by stimulating the cells to produce superoxide and through direct chemical ...
Jung-Min Park, Haerin Jeong, Yoon-Seok Seo, Van Quan Do, Seong-Jin Choi, Kyuhong Lee, Kyung-Chul Choi, Won Jun Choi, Moo-Yeol Lee   +8 more
doaj   +1 more source

Design Optimization of a Submersible Chemiluminescent Sensor (DISCO) for Improved Quantification of Reactive Oxygen Species (ROS) in Surface Waters

Sensors, 2022
Reactive oxygen species (ROS) are key drivers of biogeochemical cycling while also exhibiting both positive and negative effects on marine ecosystem health.
Kalina C. Grabb, William A. Pardis, Jason Kapit, Scott D. Wankel, Eric B. Hayden, Colleen M. Hansel   +5 more
doaj   +1 more source

Magnetism of sodium superoxide [PDF]

, 2013
By combining first-principles electronic-structure calculations with the model Hamiltonian approach, we systematically study the magnetic properties of sodium superoxide (NaO2), originating from interacting superoxide molecules.
Mazurenko, V. V., Pchelkina, Z. V., Solovyev, I. V.   +2 more
core   +1 more source

Investigating the Potential of Conjugated Selenium Redox Folic Acid as a Treatment for Triple Negative Breast Cancer

Antioxidants, 2020
Previous studies have demonstrated that redox selenium compounds arrest cancer cell viability in vitro through their pro-oxidative activity by generating superoxide (O2•−).
Soni Khandelwal, Mallory Boylan, Gilbert Kirsch, Julian E. Spallholz, Lauren S. Gollahon   +4 more
doaj   +1 more source

Crucial role of local peroxynitrite formation in neutrophil-induced endothelial cell activation [PDF]

, 2003
Introduction and methods: The reaction of superoxide anions and NO not only results in a decreased availability of NO, but also leads to the formation of peroxynitrite, the role of which in the cardiovascular system is still discussed controversially. In
Gloe, Torsten, Keller, Matthias, Klauss, Volker, Krötz, Florian, Pohl, Ulrich, Schiele, Thomas M., Sohn, Hae-Young, Theisen, Karl, Zahler, Stefan   +8 more
core   +1 more source

Superoxide Dismutases and Superoxide Reductases

Chemical 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, Abreu, Isabel A., Cabelli, Diane E., Maroney, Michael J., Miller, Anne-Frances, Teixeira, Miguel, Valentine, Joan Selverstone   +6 more
openaire   +2 more sources

Cloning, Characteristics and Functional Analysis of Rabbit NADPH Oxidase 5

Frontiers in Physiology, 2016
Background: Nox5 was the last member of the Nox enzyme family to be identified. Functionally distinct from the other Nox isoforms, our understanding of its physiological significance has been hampered by the absence of Nox5 in mouse and rat genomes. Nox5
Feng Chen, Christiana Dimitropoulou, David Fulton   +2 more
doaj   +1 more source

MitoNeoD:a mitochondria-targeted superoxide probe [PDF]

, 2017
Mitochondrial superoxide (O2⋅−) underlies much oxidative damage and redox signaling. Fluorescent probes can detect O2⋅−, but are of limited applicability in vivo, while in cells their usefulness is constrained by side reactions and DNA intercalation.
Anderson, Robert F., Arndt, Sabine, Bright, Thomas P., Cairns, Andrew G., Caldwell, Stuart T., Cobley, James N., Hall, Andrew R., Hartley, Richard C., James, Andrew M., Krieg, Thomas, Logan, Angela, Mulvey, John F., Murphy, Michael P., Pell, Victoria R., Prag, Hiran A., Prime, Tracy A., Senn, Hans M., Shchepinova, Maria M., Vidoni, Sara, Yadav, Pooja   +19 more
core   +5 more sources

The effect of vitamin C on the erythrocyte antioxidant enzymes in intoxicated-lead rat offsprings [PDF]

, 2013
Objective: Lead exposure or lead poisoning is known to cause a large spectrum of physiological, biochemical, and behavioural disorders in animals.
Eshginia, S., Marjani, A.
core   +1 more source

Hydrogen peroxide-independent generation of superoxide by plant peroxidase: Hypotheses and supportive data employing ferrous ion as a model stimulus

Frontiers in Plant Science, 2014
When plants are threaten by microbial attacks or treated with elicitors, alkalization of extracellular space is often induced and thus pH-dependent extracellular peroxidase-mediated oxidative burst reportedly takes place, especially at the site of ...
Makoto eKimura, Yosuke eUmemoto, Tomonori eKawano   +2 more
doaj   +1 more source