نتایج جستجو برای: non enzymatic antioxidant defense
تعداد نتایج: 1513075 فیلتر نتایج به سال:
Heavy metals reduce the plant growth and adversely affect plant performance potential. Heavy metals also induce the formation of reactive oxygen species leading to cell damage. Plants deal with heavy metal stress by activating enzymatic and non-enzymatic antioxidant systems such as Superoxide Dismutase which converts superoxide anion to hydrogen peroxide. Then Peroxidase and Catalase convert hy...
introduction throughout their life cycle, plants are subjected to various types of environmental stresses which include salinity, water deficit, temperature extremes, toxic metal ion concentration and uv radiation. these environmental factors limit the growth and productivity of plants to various degrees, depending upon severity of stress. heavy metal toxicity is one of the major current enviro...
a vast majority of the studies addressing the free radicals including hydroxyl radical is a damage compound of biochemical molecules such as dna, proteins and lipids. when free radicals specially hydroxyl radical are not adequately removed from the body, it may damage biological macromolecules, leading to a variety of disease occurs. therefore, the body should be protected by an enzymatic or no...
In this study, the activity of methanol extract of Prosopis cineraria (MPC) was evaluated in N-nitrosodiethylamine (DEN, 200mg/kg) induced experimental liver tumor in male Wistar rats. It was found that the administration of MPC (200 and 400mg/kg) effectively suppressed liver tumor induced by N-nitrosodiethylamine (DEN) as revealed by decrease in N-nitrosodiethylamine (DEN) induced elevated lev...
Cells continuously produce free radicals and ROS as part of metabolic processes. These free radicals are neutralized by an elaborate antioxidant defense system consisting of enzymes such as catalase, superoxide dismutase, glutathione peroxidase, and numerous non-enzymatic antioxidants, including vitamins A, E and C, glutathione, ubiquinone, and flavonoids. Exercise can cause an imbalance betwee...
Oxidative stress (OS), which has been implicated in pathogenesis of many acute and chronic diseases, plays an important role in diverse neurological disorders including depression and anxiety. OS is caused by a large amount of reactive oxygen species or impaired enzymatic or non-enzymatic defense against it. OS has been suggested to contribute to etiology of mentioned disorders. This review int...
It has been established that intense physical exercise is associated with an increase in free radical production. Our body has defense system to combat the deleterious effect. But, when the body’s natural defense system against free radicals are overwhelmed, oxidative stress increases. In the present investigation, we studied the effect of vitamin supplementation (composed of 400 IU of vitamin ...
Chronic arsenicosis is a major environmental health hazard throughout the world, including India. Animals and human beings are affected due to drinking of arsenic contaminated ground water, due to natural mineral deposits, arsenical pesticides or improperly disposed arsenical chemicals. Arsenic causes cancer with production of free radicals and reactive oxygen species (ROS) that are neutralized...
Introduction. Inflammation-destructive process, accompanying cellulitis, leads to the disturbances of metabolic processes and an imbalance of the antioxidant defense system. Increased free radical generation and lipid peroxidation has been considered to play an important role in the pathogenesis of cellulitis. Salivary parameters (components) reflect the patients’ metabolic state and have clini...
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