Active oxygen species are produced as a consequence of normal aerobic metabolism. Of these, free radicals are usually metabolized or inactivated in vivo by a team of antioxidants. Individual members are a trained team fighting antioxidants to prevent the generation of ROS, destroy or oxidizing potential of capture. In terms of physiological oxidative stress, induced tissue attack is minimal. A ...

Cells continuously produce free radicals and reactive oxygen species (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...

Recent nutrigenomic studies have shown that animal nutrition can have a major influence on tissue gene expression. Dietary antioxidant supplements can enhance the quality of meat through modification of tissue metabolic processes. This study investigated the influence of dietary antioxidants and quality of oil on the oxidative and enzymatic properties of chicken broiler breast meat stored in an...

The study assessed the individual and interactive role of acetylsalicylic acid (ASA) nitric oxide (NO) against excess copper (Cu) concentrations. Excess Cu significantly reduced growth photosynthesis, although application ASA NO mitigated reduction with much visible effect in their combination. oxidative effects have been evident as increased reactive oxygen species (ROS) production, resulting ...

Through a common garden (provenance) experiment, we investigated the metabolic responses to climatic stress with regard acclimation potential of different European beech (Fagus sylvatica L.) populations. Selected enzymatic and non-enzymatic antioxidants were analyzed in leaves. Peroxidase (POD) polyphenol oxidase (PPO) enzyme activity, total protein content as well ABTS [2.2’-azino-bis-(3-etylb...

In accordance with the mechanism of suppression of free radical overproduction in biological systems all antioxidants can be divided into two main groups: chain-breaking antioxidants and preventive antioxidants. Chain-breaking antioxidants, often referred to as free radical scavengers, protect against oxidative stress as a result of scavenging initial, peroxyl and rarely alkyl radicals. Prevent...

The radical scavenging antioxidants play an essential role in the maintenance of health and prevention of diseases, and a thorough understanding of the action and capacity of antioxidants is critically important. Despite the assumption that antioxidants must exert beneficial effects against oxidative stress, many large-scale randomized controlled trials gave inconsistent and disappointing resul...

BACKGROUND S-allylcysteine, a garlic derivative, could have a protective effect against pathogenesis of diabetes mellitus. OBJECTIVES Sustained free radical generation and oxidative damage to system leads to the final conclusion phase of diabetes and also it coexists with a constant diminution in the antioxidant status.The present study aims to evaluate the therapeutic effects of S-allylcyste...

The purpose of this study was to investigate the possible antioxidant effect of metformin in high fructose fed diet-induced diabetic rats. The increased level of lipidperoxidation and altered levels of enzymatic and non enzymatic antioxidants were seen in high fructose fed consumed animals. The administration of metformin significantly normalized the altered levels of lipid peroxidation and ant...