[Regional activity of enkephalin- and angiotensin II-forming peptidases in the rat brain and other peripheral tissues with different craving for ethanol].

Activities of enkephalin- and angiotensin II-forming enzymes (carboxypeptidase H and angiotensin-converting enzyme, ACE) were changed in different brain regions and peripheral tissues of rats with various alcohol motivation. The carboxypeptidase H activity was elevated in midbrain, striatum, hypophysis and adrenal glands, while the ACE activity was increased in hypophysis and striatum. The ACE activity was decreased two-fold in thalamo-hypothalamic region of ethanol-preferring rats.