superoxide


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Related to superoxide: hydroxyl radical, superoxide dismutase

superoxide

(ˌsuːpərˈɒksaɪd)
n
(Chemistry) any of certain metal oxides that contain the O2 ion: potassium superoxide, KO2.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

su•per•ox•ide

(ˌsu pərˈɒk saɪd, -sɪd)

n.
a compound containing the univalent ion O2.
[1840–50]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.superoxide - a metallic oxide containing the univalent anion O2-
oxide - any compound of oxygen with another element or a radical
2.superoxide - the univalent anion O2-; "much of the O2 supporting cellular respiration is reduced to the superoxide anion O2-"
anion - a negatively charged ion
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
When compared with normal mouse brain cells, the researchers found that the genetically modified mouse neurons were far more vulnerable to these stressors - particularly at the hand of a harmful form of oxygen called superoxide.
The antioxidant defense system of fish including enzymes superoxide dismutase, glutathione, metallothioneins and catalase activated after the production of ROS (Bagnyukova et al., 2006).
Type of ROS includes hydroxyl radical, superoxide anion radical, nitric oxide radical, hypochlorite radical, and lipid peroxidases.
Superoxide radical (*[O.sub.2]), hydrogen peroxide ([H.sub.2][O.sub.2]) and hydroxyl radical (OH*) are referred as ROS and have became more recognizable in the last few decades.
In vitro antioxidant assays indicated that the polysaccharides CJHP-1 and CJHP-2 had noticeable scavenging activities when examined for their ability to react with DPPH radicals, hydroxyl radicals, superoxide radicals and to chelate Fe2+.
The most important biochemical event, associated with this process, is the production of a large amount of superoxide in the activated synapse for a very short time, due to the large amount of metabolically active mitochondria in this locus (Figure 2a).
Voyager presented results for VY-SOD101, which targets the superoxide dismutase 1 gene, the first mutant gene discovered to be causal for the development of amyotrophic lateral sclerosis.
Among the endogenous antioxidants, manganese superoxide dismutase (MnSOD) is one of the critical enzymes which defends against ROS in the mitochondria.
Superoxide dismutase activity has been shown in the granulose and theca cells of the follicle, where glutathione peroxidase enzyme is localized in follicular fluid (2).
This material - termed as 'superoxide' - is absorbed readily by bacteria.
Objective: To study alterations in superoxide dismutase at molecular level in spirometry-proven bronchial asthma.
Manganese is used by the body as a co-factor for the antioxidant enzyme, superoxide dismutase.