[Nutritional corrections of histamine and serotonin levels in exposure to hypokinesia and neuro-emotional stress].

The content of histamine and serotonin was measured in test subjects exposed to: I experimental series--bed rest at an angle of +6, -2 or -6 degrees; II experimental series--neuro-emotional stress, III experimental series--an increased concentration of ammonium in the enclosure. The exposure to the factors that simulated space flight effects (i. e., orthostatic hypokinesia at -6 degrees and neuro-emotional stress and anticipation of rotation in the centrifuge) led to an increase of histamine and serotonin and a decrease of histaminepectic activity. Consumption of selected nutritional agents a day before and on the day of exposure to the neuro-emotional stress improved the content of histamine and serotonin as well as histamine-pectic activity.