Xanthine oxidase was shown to be present in these cells and to be the primary source of free radicals. While the concentration of this enzyme did not change after anoxia, the concentration of its substrate, hypoxanthine, markedly increased, resulting in increased free radical generation upon ...
Journal of Polymer Science,Part A:Polymer Chemistry . 2010Photoinitiation mechanism of free radical photopolymerization in the presence of cyclicacetals and related compounds. Xiao P,Lalevé J,Allonas1X,Fouassier J P,Ley C,El-Roz1M,Shi S Q,Nie J. Polymer Chemistry . 2010...
Peroxide and pressure cyanidation can greatly reduce the time for cyanide Au leaching. This is attributed to the intensification of free radical reaction. Therefore, it is pointed out that the free radical reaction should be promoted to intensify Au leaching process.LiangZeng...
Free-radical scavenging activities of baicalein, baicalin, wogonin and wogonoside, the four major flavonoids in a traditional Chinese herb medicine, the radix ofScutellaria baicalensis Georgi, were examined by electron paramagnetic resonance (EPR). The results showed that baicalein and baicalin scavenged ...
III. Kinetics and mechanism of styrene grafting to polyisoprene. Cameron GG,Qureshi MY. Journal of Polymer Science: Polymer Chemistry Edition . 1980Free radical grafting of monomers to polydienes.III. Kinetics and mechanism of styrene grafting to polyisoprene. G.G.Gameron,M. Y. Qureshi. J ....
4c and d), which indicates that the hydroxyl C-dots have stronger ability to capture HO2• free radicals. In the Michaelis-Menten equation, KM denotes the equilibrium constant of the following reaction: $${{{\rm{HO}}}_{2}}^{\cdot*} \to {{{\rm{HO}}}_{2}}^{\cdot }{+}^{\...
Free radicals and cardioplegia: Is the mechanism of myocardial protection by allopurinol mediated via xanthine oxidase inhibition?: DJ Chambers, A Takahashi, SM Humphrey, DM Harvey, MV Braimbridge, DJ Hearse. Cardiovascular Research, St Thomas' Hospital, London, UK...
In plants, melatonin mainly functions as a growth promoter and antioxidant9. It has the activities of delaying senescence, enhancing photosynthesis, regulating the photoperiod, affecting seed germination and root morphogenesis, regulating flowering and fruit ripening, removing free radicals, and alleviating...
There has been a considerable debate over past decade on how reactive oxidant species (ROS) in blood augment the cell signaling processes involved in the pathogenesis of coronary heart disease. In particular, it is not clear whether ROS is an important component of the cross-talk between blood ...
Unsaturated fatty acids play a major role in cell membrane lipid peroxidation, which is driven by free radicals, and its products increase during ferroptosis. PUFA peroxidation is crucial for ferroptosis despite the fact that a variety of cell membrane lipids may undergo oxidation [26,27]. ...