The critical role of superoxide anion radicals on delaying tetrachlorohydroquinone autooxidation by penicillamine

2021 ◽  
Vol 163 ◽  
pp. 369-378
Author(s):  
Li Mao ◽  
Chun-Hua Huang ◽  
Bo Shao ◽  
Li Qin ◽  
Miao Tang ◽  
...  
Keyword(s):  
Superoxide Anion ◽  
Critical Role ◽  
Superoxide Anion Radicals ◽  
Anion Radicals

Study of the simulated sunlight photolysis mechanism of ketoprofen: the role of superoxide anion radicals, transformation byproducts, and ecotoxicity assessment

2017 ◽  
Vol 19 (9) ◽  
pp. 1176-1184 ◽  
Author(s):  
Yingfei Wang ◽  
Wen Deng ◽  
Fengliang Wang ◽  
Yuehan Su ◽  
Yiping Feng ◽  
...  
Keyword(s):  
Superoxide Anion ◽  
Simulated Sunlight ◽  
Sunlight Irradiation ◽  
Superoxide Anion Radicals ◽  
Anion Radicals

ROS play a key role in the photolysis of KET under simulated sunlight irradiation and the photoproducts may still have toxicity.

On the role of superoxide anion radicals in skin tumour promotion

1984 ◽  
Vol 5 (12) ◽  
pp. 1663-1670 ◽  
Author(s):  
Michael Schwanz ◽  
Gabriele Peres ◽  
Werner Kunz ◽  
Gerhard Fürstenberger ◽  
Walter Kittstein ◽  
...  
Keyword(s):  
Superoxide Anion ◽  
Skin Tumour ◽  
Tumour Promotion ◽  
Superoxide Anion Radicals ◽  
Anion Radicals

scholarly journals Role of superoxide anion radicals in ethanol metabolism by blood monocyte-derived human macrophages.

1989 ◽  
Vol 169 (3) ◽  
pp. 755-763 ◽  
Author(s):  
S N Wickramasinghe
Keyword(s):  
Superoxide Anion ◽  
Ethanol Oxidation ◽  
Fold Increase ◽  
Ethanol Metabolism ◽  
Blood Monocyte ◽  
Human Macrophages ◽  
20 Nm ◽  
Superoxide Anion Radicals ◽  
Anion Radicals

The effects of a number of additives on the rate of conversion of ethanol (1 mg/ml; 21.7 mM) to acetate by monolayers of blood monocyte-derived human macrophages were investigated. The additives studied were superoxide dismutase (SOD; 1,500 U/ml), catalase (1,500 U/ml), tetrahydrofurane (20 mM), and PMA (20 nM), either singly or in various combinations. SOD, catalase, SOD plus catalase, tetrahydrofurane, and tetrahydrofurane plus SOD inhibited ethanol oxidation by 49.2, 12.1, 52.9, 60.4, and 66.8%, respectively. PMA caused a 4.0-8.3-fold increase in the rate of ethanol metabolism and this increase was completely suppressed in the presence of SOD. The data indicate that a substantial proportion of the ethanol metabolism by both unstimulated and PMA-stimulated blood monocyte-derived macrophages was dependent on the generation of superoxide anion radicals.

Role of superoxide anion radicals in the bacterial corrosion of metals

2012 ◽  
Vol 48 (3) ◽  
pp. 270-274 ◽  
Author(s):  
D. V. Belov ◽  
A. A. Kalinina ◽  
T. N. Sokolova ◽  
V. F. Smirnov ◽  
M. V. Chelnokova ◽  
...  
Keyword(s):  
Superoxide Anion ◽  
Bacterial Corrosion ◽  
Superoxide Anion Radicals ◽  
Anion Radicals

An ESR study of UV-irradiated solutions of tetramethylammonium mercaptoundecahydro-closo-dodecaborate(2-) at 77 K

1991 ◽  
Vol 56 (3) ◽  
pp. 657-662 ◽  
Author(s):  
Pavel Stopka ◽  
Oldřich Štrouf
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Ultraviolet Irradiation ◽  
Superoxide Anion ◽  
Oxygen Molecule ◽  
Superoxide Anion Radicals ◽  
Anion Radicals

The superoxide anion-radicals O2·- are generated by the ultraviolet irradiation of air- or oxygen-saturated aqueous solutions of tetramethylammonium mercaptoundecahydro-closo-dodecaborate(2-) at 77 K. The superoxide anion-radicals are formed from the oxygen molecule coordinated on the mercaptoundecahydro-closo-dodecaborate dianion. In the absence of this dianion no O2·- are generated. By the irradiation in the presence of hydrogen peroxide the formation of the superoxide anion-radicals is more intensive than in the presence of oxygen only. Simultaneously with O2·- generation the corresponding thiol radicals are formed. These radicals give the disulfide compound [B12H11S]24-. A possible role of sulfur-centered radicals in the autoxidation transformations of the mercaptoundecahydro-closo-dodecaborate dianion is discussed.

Studies on the Role of Superoxide Anion Radicals for the Cardiotoxicity of Adrenochrome

2011 ◽  
Vol 51 (12) ◽  
pp. 964-970
Author(s):  
Rump Alexis ◽  
Schierholz Jörg ◽  
Rösen Renate ◽  
Güttier Kuno ◽  
Klaus Wolfgang
Keyword(s):  
Superoxide Anion ◽  
Superoxide Anion Radicals ◽  
Anion Radicals

scholarly journals A critical role of superoxide anion in selenite-induced mitophagic cell death

Autophagy ◽  
2008 ◽  
Vol 4 (1) ◽  
pp. 76-78 ◽  
Author(s):  
Eun Hee Kim ◽  
Kyeong Sook Choi
Keyword(s):  
Cell Death ◽  
Superoxide Anion ◽  
Critical Role
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