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superoxide dismutase

open access: yesCatalysis from A to Z, 2020
Proteins that protect cells against elevated levels of superoxide a reactive oxygen species. These antioxidant enzymes catalyze the formation of molecular oxygen and hydrogen peroxide from the superoxide anion.
P. Sears
semanticscholar   +1 more source

Expression of Extracellular Superoxide Dismutase Protein in Diabetes [PDF]

open access: yesArchives of Plastic Surgery, 2013
Background Diabetes is characterized by chronic hyperglycemia, which can increase reactive oxygen species (ROS) production by the mitochondrial electron transport chain.
Chul Han Kim
doaj   +2 more sources

The protective effect of M40401, a superoxide dismutase mimetic, on post-ischemic brain damage in Mongolian gerbils [PDF]

open access: yes, 2003
BACKGROUND: Overproduction of free radical species has been shown to occur in brain tissues after ischemia-reperfusion injury. However, most of free radical scavengers known to antagonize oxidative damage (e.g. superoxide dismutase, catalase), are unable
Granato, Teresa   +8 more
core   +2 more sources

ASSOCIATION BETWEEN BLOOD DONATION FREQUENCY, ANTIOXIDANT ENZYMES AND LIPID PEROXIDATION [PDF]

open access: yesActa Medica Iranica, 2008
"nIron is a pro-oxidant cofactor that may be linked to atherosclerosis progression. Free iron catalyzes the generation of free radicals and free radicals promote the oxidation of lipids.
M Mehrabani   +6 more
doaj   +2 more sources

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 ...
Isabel A. Abreu   +7 more
openaire   +3 more sources

EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS) [PDF]

open access: yes, 1995
Superoxide dismutase activity in water hyacinth leaves was not sensitive to small changes in environmental pH, but declined markedly with greater pH changes.
Guangyuan He, Xuebao Li, Zhenbin Wu
core   +1 more source

Paradoxical roles of antioxidant enzymes:Basic mechanisms and health implications [PDF]

open access: yes, 2015
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are generated from aerobic metabolism, as a result of accidental electron leakage as well as regulated enzymatic processes.
Amit R. Reddi   +38 more
core   +1 more source

Superoxide DismutasE in Spring Barley Caryopses

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016
Superoxide dismutase (SOD) activity was determined in caryopses of spring barley grown in field trials in 2004–2006. A total set under study included five malting varieties with hulled grain, three waxy hull-less and hulled varieties (of US origin ...
Natálie Březinová Belcredi   +1 more
doaj   +1 more source

Superoxide dismutase: an evolutionary puzzle. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1985
We have obtained the complete amino acid sequence of copper/zinc-containing superoxide dismutase (SOD, superoxide:superoxide oxidoreductase, EC 1.15.1.1) from Drosophila melanogaster. The sequence of this enzyme is also known for man, horse, cow, and the yeast Saccharomyces cerevisiae. The rate of evolution of this enzyme is far from constant.
Lee, YM, Friedman, DJ, Ayala, FJ
openaire   +6 more sources

Superoxide Dismutase 1 in Health and Disease: How a Frontline Antioxidant Becomes Neurotoxic

open access: yesAngewandte Chemie, 2020
Cu/Zn superoxide dismutase (SOD1) is a frontline antioxidant enzyme catalysing superoxide breakdown and is important for most forms of eukaryotic life.
B. G. Trist   +4 more
semanticscholar   +1 more source

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