The influence of oxyfedrine (beta-adrenoagonist) and carbocholine (cholinoagonist) on the functional activity of Con A-induced suppressor T-lymphocytes in healthy persons and in bronchial asthma patients was studied. Oxyfedrine at a concentration of 10 micrograms/ml (10(-5) M) was shown to induce a significant increase in the suppressing activity of both normal lymphocytes and those obtained from bronchial asthma patients. The repeated incubation of lymphocytes with carbocholine at a concentration of 5 micrograms/ml (10(-6) M) led to the removal of the suppressing effect of normal lymphocytes and to the increase of the activating effect of lymphocytes from bronchiae asthma patients.
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