ABSTRACT
Arachidonic acid (AA), 20 carbon atoms, four double bonds, is one of the major polyunsaturated fatty acids present in the mammalian cell membrane. This omega-6 (n-6) fatty acid and its metabolites, released by cells responding to a wide range of stimuli, can play an important role in many physiopathological processes such as chemotaxis, inflammation, gene transcription, and signal transduction (1-3).
