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