The free radicals produced during the cellular oxidation and metabolic processes cause excessive damage to biomembranes and macromolecules like DNA, carbohydrates, lipids and proteins. Such a condition of oxidative stress and the harmful effects of free radicals bring about imbalance in the antioxidant system of the human body. The pathological conditions so developed are implicated into many d...

BACKGROUND Cardiovascular disease is the leading cause of death worldwide. Higher oxidative stress may contribute to the pathogenesis of coronary artery disease (CAD). The purpose of this study was to investigate the effect of L-carnitine (LC, 1000 mg/d) on the markers of oxidative stress and antioxidant enzymes activities in CAD patients. METHODS We enrolled 47 CAD patients in the study. The...

the present study investigates the antioxidant potential of the ethyl acetate fraction of the aerial parts eclipta alba l. hassk (eaea) which was widely used as hepatoprotective plant. eaea was orally administered at doses of 50, 100 and 200 mg/kg for 7 days in male charles foster rats. the extent of hepatoprotective potential of e . alba was studied by assessing the biochemical parameters like...

Reactive oxygen species lead to lipid peroxidation and specific oxidation of some specific enzymes, proteins and other macromolecules, thus affecting many intra- and intercellular systems. Recently, antioxidant functions have been linked to anti-inflammatory properties. Cell defences against toxic oxygen include antioxidant enzymes. We studied the enzymic antioxidant capacity in human blood of ...

The antioxidant system in plants is a very important defensive mechanism to overcome stress conditions. We examined the expression profile of antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) using a bioinformatics approach. We explored secondary structure prediction and made detailed studies of signature pattern of antioxidant proteins in four plant ...

The aim of the study was the evaluation of cadmium effects on the activity of antioxidant enzymes in rat hepatocytes. The studies were conducted with isolated rat hepatocytes incubated for 1 or 2 hours in a modified (deprived of carbonates with phosphates) Williams' E medium (MWE) in the presence of cadmium chloride (25, 50 and 200 microM). Hepatocytes incubated in the MWE medium without cadmiu...

The alleviative effect of procyanidins extracted from the lotus seedpod (LSPC) on oxidative stress in various tissues was evaluated by determining the activities of the antioxidant enzymes and the content of reduced glutathione (GSH) in heart, liver, lung, kidney, skeletal muscle, and serum in aged rats. Aging led to antioxidant deficit in various tissues in this study, which is confirmed by re...

Type 1 diabetes is a chronic disease characterized by the body's inability to produce insulin due to destruction of the beta cells. There is increasing evidence that reactive oxygen species (ROS) play a major role in the development of diabetic complications. The purpose of this study is to investigate the effects of troxerutin administration on oxidative stress markers in blood of STZ-induced ...