[Cellular and humoral immunity of volunteers consuming diets with various protein levels].

Eight male volunteers were examined for the functions of T and B lymphocytes (blast transformation reaction, leukocyte migration inhibition test, lymphocyte cytotoxicity, suppressor activity, measurement of IgG, IgM, IgA, IgD and IgE in blood serum, and concentration of natural staphylococcal antibodies) in the background of varying protein supply of the body. Reduction of the protein quota (5 to 9 g/day according to nitrogen) in the diet led to inhibition of the activity of immunocompetent cells.