“The … epinephrine (1 mg/kg body weight) 12 hr before killing, produced … 50% decrease in desaturation of [1-14C]linoleic acid to γ-linolenic acid , [1-14C]α-linolenic acid to octadeca-6,9,12,15-tetraenoic … and [1-14C]eicosa-8,11,14-trienoic acid to arachidonic acid.”