| Abstract: | Possibility of making use of fluorescent probe 4-(p-dimethyl aminostyril)-1-methyl pyridinium p-toluene-sulphonate (DSM) for observing the interaction of beta-adrenoactive substances (adrenaline and propranolole) and specific receptors of human blood erythrocytes has been studied. Two types of DSM bindings with erythrocyte membranes have been revealed--specific and non-specific. It has been found that DSM reacts selectively to preliminary influence of beta-adrenoactive substances: antagonist propranolole diminishes both specific and nonspecific bindings and agonist adrenaline increases specific binding with the membrane erythrocytes. The conclusion is made as to possible use of DSM probe for investigating beta-adrenoreceptive function of the cell membranes. |
