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From Bioblast
This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.
List of results
- Free radicals + (A '''free radical''' is any atom or molecu … A '''free radical''' is any atom or molecule that contains one or more unpaired electrons in an orbital. The degree of chemical reactivity depends on the localization of unpaired electrons. Free radicals are extremely reactive, and they can either donate or accept an electron from other molecules. Free radicals that include oxygen radicals and derivatives of oxygen are [[reactive oxygen species]] (ROS). Likewise, [[reactive nitrogen species]] (RNS) are nitric oxide-derived compounds. ROS/RNS include oxygen/nitrogen free radicals and non-radicals that are easily converted into radicals. Mitochondria are a main endogenous source of free radicals in cells and consequently are exposed to oxidative-nitrosative damage. Electron transfer in the electron transfer-pathway (ET-pathway) is not perfect, leading an electron leakage. This electron leakage permits the formation of ROS such as [[superoxide]] anion (O2•−), [[hydrogen peroxide]] (H<sub>2</sub>O<sub>2</sub>) and the hydroxyl radical (HO•)./sub>O<sub>2</sub>) and the hydroxyl radical (HO•).)
