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Encyclopedia > Free radical
  1. Radical (chemistry)
  2. Free Radical Design

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Free-radical theory - Wikipedia, the free encyclopedia (724 words)
In biochemistry, the free radicals of interest are often referred to as "reactive oxygen species" (ROS) because the most biologically significant free radicals are oxygen-centred; however it should be noted that not all free radicals are ROS and not all ROS are free radicals.
This involvment is not at all surprising as free radical damage is an important aspect of phagocytosis, inflammation, and apoptosis.
The free radical theory of disease states that disease is associated with abnormal levels of oxidation and the generation of free radical damage.
Free radical - definition of Free radical in Encyclopedia (1042 words)
In the upper atmosphere free radicals are produced through dissociation of the source molecules, particularly the normally unreactive chlorofluorocarbons by solar ultraviolet radiation or by reactions with other stratospheric constituents.
Free radicals play an important role in a number of biological processes, some of which are necessary for life, such as the intracellular killing of bacteria by neutrophil granulocytes.
Because free radicals are necessary for life, the body has a number of mechanisms to minimize free radical induced damage and to repair damage which does occur, such as the enzymes superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase.
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