[A contribution of the histochemical behaviour of the unspecific esterases in hypothalamus, neurohypophysis, adrenal and parotid gland of the rat against inhibitors].

On continuation of study by KURZ and GOSLAR (1974) concerning the inhibitory effects to non specific esterases on liver and kidney, the behaviour of alpha-naphthyl-acetate-esterases on hypothalamus, neurohypophysis, adrenal and parotid glands of rats had been examined against aldehydes, organic solution-mediators and anorganic salts. It had shown a different sensitiveness, the esterases of tanycytes, nerve cells and pituicytes acted more sensitive than those of the adrenal cortex and parotid gland. The differences seen on the solution-mediators were less; on metal salts from different groups of periodical system which applied, the most intense blocking effect was found in the nerve cells. The esterases of tanycytes and the immediately extensively reacting pituicytes, as well as the adrenal cortex esterases reacted essentially less sensitive, the gland cells of parotid even almost not at all. The arguments of this behaviour are discussed and pointed out with different complexity of alpha-naphthylacetate splitting enzymes on individual organs.