Results 41 to 50 of about 318,307 (167)

Role of vitamin E in glutathione-induced oxidant stress: methemoglobin, lipid peroxidation, and hemolysis

Journal of Lipid Research, 1977
Red blood cells (RBC) from normal and vitamin E-deficient rats were incubated in a hypertonic solution of reduced glutathione adjusted to pH 8. Methemoglobin formation occurred in intact RBC from both normal and vitamin E-deficient rats.
N R Brownlee, J J Huttner, R V Panganamala, D G Cornwell   +3 more
doaj   +1 more source

Cyanobacteria Scytonema javanicum and Scytonema ocellatum Lipopolysaccharides Elicit Release of Superoxide Anion, Matrix-Metalloproteinase-9, Cytokines and Chemokines by Rat Microglia In Vitro

Toxins, 2018
Cosmopolitan Gram-negative cyanobacteria may affect human and animal health by contaminating terrestrial, marine and freshwater environments with toxins, such as lipopolysaccharide (LPS).
Lucas C. Klemm, Evan Czerwonka, Mary L. Hall, Philip G. Williams, Alejandro M. S. Mayer   +4 more
doaj   +1 more source

Superoxide and peroxynitrite inatherosclerosis. [PDF]

Proceedings of the National Academy of Sciences, 1994
The role of reactive oxygen species in the vascular pathology associated with atherosclerosis was examined by testing the hypothesis that impaired vascular reactivity results from the reaction of nitric oxide (.NO) with superoxide (O2-), yielding the oxidant peroxynitrite (ONOO-).
C R, White, T A, Brock, L Y, Chang, J, Crapo, P, Briscoe, D, Ku, W A, Bradley, S H, Gianturco, J, Gore, B A, Freeman   +9 more
openaire   +2 more sources

Spontaneous Reduction of Cu(II) Complexes with Imidazole-Derived Ligands in Acetonitrile

Molecules
The spontaneous reduction of one Cu(II) center to Cu(I) in a series of three dinuclear copper complexes in acetonitrile is described. These complexes feature ligands that include nitrogen donors from a diazecine ring and imidazole, designated as promeim,
Brenda Sánchez-Eguía, Carolina Sánchez-López, Marcos Flores-Álamo, Nils Schuth, Víctor M. Ugalde-Saldívar, Virginia Gómez-Vidales, Chiara E. Campi, Juan Raúl Álvarez Idaboy, Liliana Quintanar, Laura Gasque   +9 more
doaj   +1 more source

In adenosine A2B knockouts acute treatment with inorganic nitrate improves glucose disposal, oxidative stress and AMPK signaling in the liver

Frontiers in Physiology, 2015
Rationale: Accumulating studies suggest that nitric oxide (NO) deficiency and oxidative stress are central pathological mechanisms in type 2 diabetes.
Maria ePeleli, Michael eHezel, Christa eZollbrecht, A. Erik G Persson, Jon O Lundberg, Eddie eWeitzberg, Bertil B Fredholm, Mattias eCarlstrom   +7 more
doaj   +1 more source

Superoxide and superoxide dismutase in red blood cells.

The St. Luke's Hospital gazette, 1976
In 1969 a previously obscure copper protein of red blood cells, erythrocuprein, was shown to catalyse the dismutation of superoxide radicals. Erythrocuprein thus became superoxide dismutase and the object of intensive study. Superoxide dismutase is typically an enzyme of aerobic organisms which utilize oxygen as the major electron acceptor.
Anastasi, Angela, Bannister, J. V., Bannister, William H.   +2 more
openaire   +2 more sources

Tight Regulation of Extracellular Superoxide Points to Its Vital Role in the Physiology of the Globally Relevant Roseobacter Clade

mBio, 2019
There is a growing appreciation within animal and plant physiology that the reactive oxygen species (ROS) superoxide is not only detrimental but also essential for life.
Colleen M. Hansel, Julia M. Diaz, Sydney Plummer   +2 more
doaj   +1 more source

Effective and Novel Application of Hydrodynamic Voltammetry to the Study of Superoxide Radical Scavenging by Natural Phenolic Antioxidants

Antioxidants, 2019
The reactions of antioxidants with superoxide radical were studied by cyclic voltammetry (CV)—and hydrodynamic voltammetry at a rotating ring-disk electrode (RRDE).
Stuart Belli, Miriam Rossi, Nora Molasky, Lauren Middleton, Charles Caldwell, Casey Bartow-McKenney, Michelle Duong, Jana Chiu, Elizabeth Gibbs, Allison Caldwell, Christopher Gahn, Francesco Caruso   +11 more
doaj   +1 more source

Generation of reactive oxygen species by hydroxypyridone compound/iron complexes

Redox Report, 2020
Objectives: Prooxidant properties of iron-binding hydroxypyridone compounds including deferiprone and mimosine were analyzed. Methods: Hydroxypyridone/iron-dependent production of reactive oxygen species was evidenced by the inactivation of aconitase ...
Keiko Murakami, Masataka Yoshino
doaj   +1 more source

Dual Redox Behavior of Mitochondria‐Targeting Antioxidant: Prooxidant Activity Through Light‐Induced Redox Active Triplet State

ChemistryEurope
Mitochondria‐targeting neutral small molecules are promising candidates for redox modulation and diagnostic imaging in mammalian cells. A deeper understanding of how the properties of these molecules affect mitochondria is essential for these ...
Kusaji Pundlik Raul, Somanathapura K. NaveenKumar, V. Venkatesh, Govindasamy Mugesh   +3 more
doaj   +1 more source