Reactive oxygen species (ROS) are chemically reactive molecules containing oxygen. Examples include oxygen ions and peroxides. ROS form as a natural byproduct of the normal metabolism of oxygen and have important roles in cell signaling and homeostasis. However, during times of environmental stress (e.g., UV or heat exposure), ROS levels can increase dramatically. This may result in significant damage to cell structures. Cumulatively, this is known as oxidative stress. ROS are also generated by exogenous sources such asionizing radiation.
Showing posts with label reactive oxygen species. Show all posts
Showing posts with label reactive oxygen species. Show all posts
Thursday, February 14, 2013
Subscribe to:
Posts (Atom)
-
Hormones play important roles in providing energy to the muscles and nerves. They are also involved in replacing that energy. In addition, t... -
Exciting news for fellow swimming fans from Turkey. The Turkish swimming federation has signed a three and a half year agreement with TSE co... -
A lot of open water swimmers hate the cold, both the cold air and especially cold water. There many people out there that they don’t go near...