Definition: Trihydroxy derivatives of eicosanoic acids. They are primarily derived from arachidonic acid, however eicosapentaenoic acid derivatives also exist. Many of them are naturally occurring mediators of immune regulation.
lipoxin A4 [ 15-epi-LXA4,15-epi-lipoxin A4,5,6,15-tri-HETE,5,6,15-triHETE,5,6,15-trihydroxy-7,9,11,13-eicosatetraenoic acid,LXA4 ] an antifibrolytic agent; structure given in first source; a role in ASPIRIN antiinflammatory activity