What is a major eicosanoid?

A major eicosanoid is a bioactive lipid derived from arachidonic acid, a polyunsaturated fatty acid. Eicosanoids play crucial roles in various physiological processes, including inflammation, immune response, and blood clotting. Key classes of eicosanoids include prostaglandins, thromboxanes, and leukotrienes, each with distinct functions in the body. These molecules serve as important signaling molecules, modulating various biological activities.