Free radicals are extremely reactive and produce damage and modify cell functions. Furthermore, superoxide dismutase and catalase are believed to play a key role in the enzymatic defence of the cells. Indeed, some authors have argued that reduced free-radical damage could explain increased longevity. Margaritifera margaritifera is one of the longest-lived animals in the world (up to 100-200 yea...

BACKGROUND The present study investigates the cardioprotective effects of Hibiscus rosa sinensis in myocardial ischemic reperfusion injury, particularly in terms of its antioxidant effects. METHODS The medicinal values of the flowers of Hibiscus rosa sinensis (Chinese rose) have been mentioned in ancient literature as useful in disorders of the heart. Dried pulverized flower of Hibiscus rosa ...

Cancer is a leading cause of death worldwide and its development is frequently associated with oxidative stress-induced by carcinogens such as arsenicals. Most foods are basically health-promoting or disease-preventing and a typical example of such type is honey. This study was undertaken to investigate the ameliorative effects of Acacia honey on sodium arsenite-induced oxidative stress in the ...

The aim of the study was to determine the effects of taurine in rats exposed to subacute dichlorvos toxicity. Fifty rats were weighed and assigned into five groups of ten rats each. The groups received: distilled water, soya oil (1 ml/kg), taurine (50 mg/kg), dichlorvos (10 mg/kg) and the combination treatment group received taurine first and then dichlorvos 30 min later. The treatments were ad...

Rootstocks of fruit trees, commonly used to regulate growth, precocity, fertility, and yield, can also be used to solve problems associated with soils pollution such as copper excess. Despite their potential use for phytoremediation, information on the physiological, biochemical, and molecular aspects of heavy metal toxicity stress on fruit tree rootstocks remains limited. In this study of Prun...

INTRODUCTION Several theories have been proposed to explain the cause of 'aging'; however, the factors that affect this complex process are still poorly understood. Of these theories, the accumulation of oxidative damage over time is among the most accepted. Particularly, the heart is one of the most affected organs by oxidative stress. The current study, therefore, aimed to investigate oxidati...

Burn injury is a medical problem as well as a social burden on the national health services in developing countries. Trace elements have important roles in wound healing and act as antioxidants. In this study we estimated iron (Fe), zinc (Zn) and copper (Cu) levels in serum and superoxide dismutase and catalase activities in erythrocyte of burned patients. Study includes 43 patients with burn i...

Channa striata (Bloch.) is a fresh water fish belonging to the family Channidae. The stripped snakehead fish possesses wide range of medicinal properties. In view of traditional use of C. striata for wound healing, the present study was undertaken to investigate the beneficial effects of orally administered freeze dried aqueous extract of Channa striata (AECS) in experimentally induced gastric ...

Superoxide dismutase is antioxidant enzyme responsible for the quenching of superoxide radicals which are released during the chemical reactions of the various metabolic pathways. It is a non-heme protein. Different iso-enzymes of superoxide dismutase are described. The mitochondrial enzyme is manganese dependent, cytoplasmic enzyme is copper-zinc dependent. These enzymes are evenly and ubiquit...