Adaptive response and oxidative stress.

Adaptive response and oxidative stress.

The ability of a cell, tissue, or organism to better resist stress damage by prior exposure to a lesser amount of stress is known as adaptive response. It is observed in all organisms in response to a number of different cytotoxic agents. One of these agents, oxidative stress, is known to induce an adaptive response in bacteria that is accompanied by the induction of many proteins. De novo prot...

The Adaptive Response to Intestinal Oxidative Stress in Mammalian Hibernation

Yeast oxidative stress response

Aerobic organisms are constantly exposed to reactive oxygen species (ROS), generated as normal metabolism byproducts, especially by respiration [1,2]. To modulate ROS concentrations and to counteract their deleterious effects, there are several antioxidant systems with an apparent functional redundancy, which may provide an evolutionary advantage. Saccharomyces cerevisiae cells possess multiple...

Staphylococcal response to oxidative stress

Staphylococci are a versatile genus of bacteria that are capable of causing acute and chronic infections in diverse host species. The success of staphylococci as pathogens is due in part to their ability to mitigate endogenous and exogenous oxidative and nitrosative stress. Endogenous oxidative stress is a consequence of life in an aerobic environment; whereas, exogenous oxidative and nitrosati...

Oxidative Stress Response in Rats

Résumé The purpose of this study was to determine if changes in oxidative stress biomarkers in blood and skeletal muscles are similar in normal and antioxidant supplemented rats after a downhill run. Sixty-six male Sprague-Dawley rats were pretreated with a normal rat diet or diet + antioxidants (2,000 mg vitamin C + 1,000 IU vitamin E/kg diet) for 2 weeks. Exercised rats ran 90 min on a rodent...