linoleic acid , being no direct prostaglandin precursor , displays a variety of effects on the prostaglandin cascade , while dihomo-gamma-linolenic acid gives rise to 1-series prostaglandins and arachidonic acid to prostaglandins ( eicosanoids ) of the 2-series .
C0000658
dihomo-gamma-linolenic acid
C0013725
eicosanoids