Radioactivity of aqueous and total lipid phases (A), in neutral lipid classes (B), and phospholipid (C) of brain in n-3 PUFA adequate and deficient rats after 5-min i.v. infusion of [1-14C]DPA. Abbreviations: TG, triacylglycerol; PL, phospholipid; Chol, cholesterol; EtnGpl, ethanol glycerophospholipid; ChoGpl, choline glycerophospholipid; PtdSer, phosphatidylserine, PtdIns, phosphatidylinositol. Values are mean ± SD (n = 8 for both groups).