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  • Title: Examinations of contribution of bradykinin in the action of dopamine in circulatory system of rats. III. Influence of bradykinin on chosen metabolic effects of dopamine.
    Author: Fiedorowicz R, Moniuszko-Jakoniuk J, Wiśniewski K.
    Journal: Arch Immunol Ther Exp (Warsz); 1983; 31(5):761-8. PubMed ID: 6675576.
    Abstract:
    The influence of bradykinin on the action of dopamine in the biochemical examinations (the activity of phosphorylase "a" in the heart muscle, the level of free fatty acids and the level of lactic acid in blood) were estimated. It was shown that dopamine (250 micrograms, 500 micrograms, 750 micrograms/kg i.v.) increased and bradykinin (2.5 micrograms, 5 micrograms/kg i.v.) did not change the examined biochemical parameters. Bradykinin applied in the smaller dose simultaneously with dopamine in the smallest dose intensified the amine action. The peptide introduced into the organism in the higher dose increased the stimulatory action of dopamine as estimated by the of phosphorylase "a" activity in the heart muscle and diminished the amine effect as estimated by the free fatty acids and lactic acid in blood. Administration of bradykinin with dopamine in the highest dose - 500 micrograms/kg i.v., did not change the stimulatory action of the catecholamine. But application of bradykinin with dopamine in the highest dose diminished the stimulatory effect of the dopamine. Therefore, bradykinin modified the action of dopamine as it was demonstrated by the estimation of the metabolic effects.
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