“The … ACTH to intact rats produced a significant decrease in … conversion of [1-14C]linoleic acid to gamma-linolenic acid , [1-14C]alpha-linolenic acid to octadeca-6,9,12,15-tetraenoic acid, and [1-…]eicosa-8,11,14-trienoic acid to arachidonic acid in liver and adrenal microsomes.”