[Free radical peroxidation of liver mitochondrial and microsomal phospholipids in rat postnatal development].

Activities of both non-enzymic (ascorbate-dependent) and enzymic NADPH-dependent) peroxidation of microsomal and mitochondrial phospholipids are found to be increased in rat liver during postnatal development. It is suggested, that microsomal NADPH-dependent phospholipid dioxygenase forming a chemical modification of membrane polyenic acyls, can be a factor regulating the activities of membrane-linked enzymes under normal physiological processes.