Results 311 to 320 of about 640,255 (384)

Effects of Phenolcarboxylic Acids on Superoxide Anion and Lipid Peroxidation Induced by Superoxide Anion

Planta Medica, 1991
The effects of phenolcarboxylic acids, caffeic acid, p-coumaric acid, and ferulic acid on the generation of superoxide anion and the production of lipid peroxide induced by superoxide anion were studied. Only ferulic acid anion among the phenolcarboxylic acids scavenged superoxide.
Shizuo Toda, Michio Kumura, Motoyo Ohnishi   +2 more
openaire   +2 more sources

Superoxide Anion Scavenging Property of Dipyridamole

Thrombosis and Haemostasis, 1989
[No abstract available]
IULIANO, Luigi, A. Ghiselli, C. Alessandri, M. S. Bonavita, VIOLI, Francesco   +4 more
openaire   +3 more sources

Thymoquinone Is a Potent Superoxide Anion Scavenger

Drug and Chemical Toxicology, 2003
The antioxidant and pro-oxidant effects of thymoquinone (TQ), a natural main constituent of the volatile oil of Nigella saliva seeds, and a synthetic structurally-related tert-butylhydroquinone (TBHQ), were examined in vitro. Both TQ and TBHQ efficiently inhibited iron-dependent microsomal lipid peroxidation in a concentration-dependent manner with ...
Badary, Osama A., Taha, Ragia A., Gamal El-Din, Ayman M., Abdel-Wahab, Mohamed H.   +3 more
openaire   +3 more sources

Scavenging of superoxide anion radical by chaparral

Molecular and Cellular Biochemistry, 1999
Chaparral is considered to act as an antioxidant. However, the inhibitory effects of chaparral on specific radical species are not well understood. Using electron paramagnetic resonance (EPR) spectroscopy in combination with spin trapping techniques, we have found that chaparral scavenges superoxide anion radical (O2*-) in a dose-dependent manner.
Val Vallyathan, Greg Cosma, Lun-Yi Zang, Henry S. Gardner, Xianglin Shi, Kenneth Starks   +5 more
openaire   +3 more sources

Mitochondria-Targeted Ratiometric Fluorescent Probe Based on Diketopyrrolopyrrole for Detecting and Imaging of Endogenous Superoxide Anion in Vitro and in Vivo.

Analytical Chemistry, 2019
Intracellular reactive oxygen species is involved in a wide variety of physiological and pathological processes. In this work, we have developed a new mitochondria-targeting probe (DPP-S) for superoxide anion detection with ratiometric fluorescence ...
Jian Wang, Lingyan Liu, Weibo Xu, Zhicheng Yang, Yongchao Yan, Xiaoxu Xie, Yu Wang, T. Yi, Chengyu Wang, Jianli Hua   +9 more
semanticscholar   +1 more source

Bioluminescence detection of superoxide anion using aequorin.

Analytical Chemistry, 2019
Although the superoxide anion (O2-•) is generated during normal cellular respiration and has fundamental roles in a wide range of cellular processes such as cell proliferation, migration, apoptosis and homeostasis, its dysregulation is associated with a ...
Hossein Rahmani, Fahimeh Ghavamipour, R. H. Sajedi   +2 more
semanticscholar   +1 more source

Ionol (BHT) Produces Superoxide Anion

Biochemistry (Moscow), 2002
In aqueous medium etiolated wheat seedlings release superoxide anion (O2*-). Interaction of a synthetic antioxidant, butylated hydroxytoluene (BHT, ionol), with oxygen in the aqueous medium is accompanied by O2*- formation. This suggests that under certain conditions BHT behaves as a prooxidant.
E Yu Lyubimova, G M Kolesova, N I Alexandrushkina, Yu I Lyubimov, E. G. Smirnova, Lev S. Yaguzhinsky, T G Malinina, Boris F. Vanyushin   +7 more
openaire   +3 more sources

Reaction of polyacrylonitrile with superoxide anion

Polymer Degradation and Stability, 1992
The reaction of polyacrylonitrile with superoxide anion (O•2), generated from KO2 and by electrochemical reduction of O2, was carried out in dimethyl formamide solution at 40°C under nitrogen. A rapid decrease in the molecular weight of the polymer with scarcely any loss of the yield of recovered polymer was observed.
Yoshihito Uchida, Arata Kumakura, Keiji Kobayashi, Zenjiro Osawa   +3 more
openaire   +2 more sources

Superoxide Anion Scavenging Effect of Coumarins

The American Journal of Chinese Medicine, 1996
The superoxide scavenging effects of fifteen coumarins were tested on the xanthine-xanthine oxidase-cytochrome C system. The results showed that fraxetin(10) displayed the strongest activity, and its percent inhibition at 100, 10 and 1 μM were 100, 100 and 53.13% respectively.
Chun-Ching Lin, Hsüch-Ching Chiang, Wen-Shin Chang, Shu-Chuan Chuang   +3 more
openaire   +3 more sources

Analysis of Superoxide Anion Production in Tissue

2005
Endothelial production of oxygen free radicals, especially superoxide anion (O(2)-), is an important mechanism of vascular dysfunction in hypertension. Overproduction of oxygen free radicals, mainly O(2)- occurs in human hypertension and in a wide variety of animal models.
ZANETTI, MICHELA, d'Uscio L.V., Peterson T.E., Katusic Z.S., O'Brien T.   +4 more
openaire   +4 more sources