[Seasonal changes in amine-containing structures of the thymus during the 1st hour of antigen effects].

: Using luminescent-histochemical and microspectrofluorimetric techniques, the combination of early visual and quantitative changes of catecholamine and serotonin content in biogenic amine-containing thymus structures during the first hour contact of the body with the T-dependent antigen (sheep red blood cells) has been studied. The experiments were made on 60 male rats of Wistar-2 line, white laboratory rats in spring and autumn. The degree and direction of the changes were found to depend on the baseline neuromediator levels.