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High Altitude and Free Radicals
High altitude reactive oxygen and nitrogen species oxidative stress oxidative damage antioxidants acute mountain sickness
2015/3/12
High altitude exposure results in decreased oxygen pressure and an increased formation of reactive oxygen and nitrogen species (RONS), which is often associated with increases in oxidative damage to l...
Role of Oxygen-free radicals on the motility of rat ileum effects of Xanthine plus Xanthine Oxidase
Isolated ileum muscle Xanthine Xanthine oxidase Hydroxyl radical Singlet oxygen Superoxide dismutase
2009/12/24
The major objective of the present study was to characterize the effects of oxidants generated b xanthine (X) plus xanthine oxidase (XO) on isolated rat ileum motility. The effects of three concentrat...
Free Radicals, Antioxidants in Disease and Health
free radicals antioxidants beneficial effects deleterious effects oxidative stress
2009/4/29
Free radicals and oxidants play a dual role as both toxic and beneficial compounds, since they can be either harmful or helpful to the body. They are produced either from normal cell metabolisms in ...
Concentration of free radicals in faba bean seeds after the pre-sowing treatment of the seeds with laser light
laser bio-stimulation of seeds faba bean free radicals Electron Paramagnetic Resonance
2008/11/26
Science and Plant Cultivation in Puławy, the Agricultural University and University of Maria Curie-Skłodowska in Lublin. The first row factor were three morphologically differentiated white ...
Concentration of free radicals in pea seeds after pre-sowing treatmentwith magnetic field
Electron Paramagnetic Resonance free radicals pea stimulation of seeds
2008/11/26
The aim of the research was the estimation of seed lot magnetic stimulation effect on free radicals concentration and dynamics of pea seeds germination. The first factor were two cultivars of pea: Rol...
Electron paramagnetic resonance (EPR) investigations of laser induced free radicals in spring wheat grains
wheat grain laser electron paramagnetic resonance
2008/11/26
Electron paramagnetic resonance (EPR) spectroscopy was applied to the studies on free radicals in wheat grains. The stable free radicals normally present in cereal grains can be detected by EPR measu...
Predicting arene rate coefficients with respect to hydroxyl and other free radicals in the gas-phase: a simple and effective method using a single topological descriptor
arene hydroxyl free radicals topological descriptor
2008/11/12
The reactivity of aromatic compounds is of great relevance to pure and applied chemical disciplines, yet existing methods for estimating gas-phase rate coefficients for their reactions with free radic...
The influence of gamma-irradiation on the formation of free radicals and antioxidant status of oregano (Origanum vulgare L.)
oregano irradiation EPR spectroscopy free radicals thermal stability life-time antioxidant activity
2014/3/4
The influence of various gamma-radiation dose absorptions on oregano (Origanum vulgare L.) solid samples was monitored by means of electron paramagnetic resonance (EPR) spectroscopy. Further, the anti...
Effect of Low Ambient Temperature on the Concentration of Free Radicals Related to Ascites in Broiler Chickens
Ascites in Broilers Free Radicals MDA SOD NO L-arginine
2016/4/19
A flock of Arbor Acres chickens were reared in cages and provided with high energy pelleted feed. At 14 d of age, a total of 350 birds were separated into 3 groups randomly as follows: 100 birds were ...
T he relative order of mK channels, free radicals and p38 MAPK in ATP preconditioning’s protective pathway in rat heart
Free radicals Infarction Ischemia Mitochondria Preconditioning Signal transduction
2014/3/31
Ischemic preconditioning (PC) reduces myocardial infarction by a mechanism that involves opening of mitochondrial
ATP-dependent potassium channels (mK ), reactive oxygen species (ROS), and possibly a...
Reduction of Structural Iron in Ferruginous Smectite by Free Radicals
Clay Dithionite Electron spin resonance spectroscopy ESR Hydrazine Iron Reduction Smectite Sulfide Thiosulfate
2011/12/31
The oxidation state of structural iron greatly influences the physical-chemical properties of clay minerals, a phenomenon that may have significant implications for pollutant fate in the environment, ...