“ Arachidonic , 8,11,14- and …,17-eicosatrienoic acids inhibit SNP (10(-4) M)-stimulated cGMP formation more potently than the C18 unsaturated fatty acids linolenic and linoleic acids in D384 …-G. In contrast the C20 saturated fatty acid, arachidic acid had little effect even at 10(-4) M concentration.”