Demiryürek A T, Cakici I, Kanzik I
Department of Pharmacology, Faculty of Pharmacy, Gazi University, Etiler, Ankara, Turkey.
Pharmacol Toxicol. 1998 Mar;82(3):113-7. doi: 10.1111/j.1600-0773.1998.tb01408.x.
In recent years it has become apparent that peroxynitrite, which is one of the toxic metabolites originating from the reaction of nitric oxide and superoxide presents a number of pathologic states in which free radicals are thought to be involved. Peroxynitrite is capable of oxidizing a wide variety of biomolecules including plasma, proteins, lipids, carbohydrates and nucleic acids. Peroxynitrite is involved in the hydroxylation of aromatic compounds and acts as a nitrating agent. It modifies free or protein-associated tyrosine residues to give nitrotyrosines, leaving a marker detectable in vivo. Peroxynitrite has been implicated in the pathophysiology of a variety of diseases including inflammation, atherosclerosis, arthritis, endotoxemia, ischaemia-reperfusion injury, or acute respiratory distress syndrome. Development of specific peroxynitrite scavengers may provide new approaches for the effective treatment of these disease states.
