This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Lipoxins belong to which family of chemical mediators of inflammation? \nSelect and explain. \nA. Kinin system, B. Cytokines, C. Chemokines, D. Arachidonic acid metabolites', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lipoxins are derived enzymatically from arachidonic acid, an o-6 fatty acid. Lipoxins are formed when platelets interact with leukocytes. Lipoxin A4 (LXA4) and Lipoxin B4 (LXB4) are the two known lipoxins. They are generated by the action of platelet 12-lipoxygenase on neutrophil LTA4. Ref: Robbins Pathologic Basis of Disease 6tHedition, Page 69, 71,74', 'role': 'assistant'}]