[Localization of catecholamines, serotonin, histamine and acetylcholinesterase in human peripheral blood structures].

By means of various histochemical methods localization of biologically active compounds in structure of peripheral blood of 66 practically healthy persons have been studied. In the blood structures studied (plasma, erythrocytes, neutrophilic granulocytes, lymphocytes) catecholamines, serotonin, histamine and acetylcholinesterase are distributed unevenly. In leucocytes their content is the greatest.