The molecular mechanisms by which a variety of naturally-occurring dietary compounds exert chemopreventive effects have been a subject of intense scientific investigations. Induction of phase II detoxification and anti-oxidant enzymes through activation of Nrf2/ARE-dependent gene is recognized as one of the major cellular defense mechanisms against oxidative or xenobiotic stresses and currently...

Low temperatures provoke increased production of heat accompanied by increased respiration, oxygen consumption and the production of partially reduced oxygen species called ROS. ROS induce different forms of cellular oxidative damage, disturb the redox state and can change the activity of several metabolic enzymes. Organisms have developed a functionally connected set of anti-oxidant enzymes an...

The brain's anti-oxidant response to highly elevated oxygen (O2) partial pressures is poorly understood. In this study we hypothesized that hyperbaric O2 (HBO2) would stimulate superoxide dismutase (SOD) transcription in the oxidative stress-sensitive rat hippocampus and measured the time course and extent of the changes in hippocampal mRNA for all three SOD isoforms and total SOD enzyme activi...

Objectives Oxidative stress induces chronic inflammatory diseases in aerobic organisms, and antioxidants from plants represent an efficient strategy to prevent this condition. Morin hydrate (MH), a bioactive flavonoid, has wide range of pharmacological properties, including anti-inflammatory anti-oxidant. This study evaluated the protective effects MH on lipoteichoic acid (LTA)-induced inflamma...

Objectives: The primary objective of this study was to assess the pharmacological activity Cinnamaldehyde (CA) obtained from cinnamon bark in 7, 12-Dimethylbenz antharacene (DMBA)-induced skin cancer albino mice and important cell antioxidant enzymes levels which play an role cancer. Methods: Cinnamon collected obtain CA phytochemical screening extract performed. Then done with cancer, after 12...

This study was designed to determine the sequence of events leading to cardiopulmonary effects following acute inhalation of diesel engine exhaust in rats. Rats were exposed for 2 h to diesel engine exhaust (1.9 mg/m(3)), and biological parameters related to antioxidant defense, inflammation, and procoagulation were examined after 4, 18, 24, 48, and 72 h. This in vivo inhalation study showed a ...

Zinc (Zn) and chromium (Cr) appeared to be the most promising elements in the therapeutics of diabetes mellitus (DM). The objective of the study was to identify the modulating activities of Zn and/or Cr in vivo and in vitro mitogenic of lipopolysaccharide (LPS) and phytohaemagglutinin (PHA) on peripheral lymphocyte and glycemic control and some anti oxidant enzymes in streptozocin-induced diabe...

Drought stress is the most common environmental stress that can significantly influence crop productivity. In this study, morphological and biochemical properties of 17 genotypes of common bean were evaluated under different levels of drought stress and the most sensitive and tolerant genotypes were identified using multivariate analysis. The results indicated that morphological and biochemical...

In the second experiment as reported in the previous chapter, an anti cataract activity of Captopril against oxidant stress induced cataract was investigated attributed to its antioxidant properties. The antioxidant property of Captopril is greatly influenced by the presence of thiol group in its structure which helps to interact with lens specific enzymes and proteins as well. After absorption...

INTRODUCTION Oxidative stress affects clinical outcome in critically ill patients. Although high-density lipoprotein (HDL) particles generally possess anti-oxidant capacities, deleterious properties of HDL have been described in acutely ill patients. The impact of anti-oxidant HDL capacities on clinical outcome in critically ill patients is unknown. We therefore analyzed the predictive value of...