Abstract
Effect of dihydroatizin (5–250 μmol / L) on the contractile activity of rat smooth aorta muscle cells (SMC). Isometric tensile forces were recorded. Using a force transducer FT - 03 (Grass Instrument Co., USA). In it was found by experiments that the vasodilating effect of dihydroatizin mainly associated with the blockade of the Ca2 + L-channel. Methods-Preparation of the aortic vessel muscle preparation, and recording the force of contraction. Results- KCI-induced contraction of the aortic MMC is associated with the activation of potential–dependent Ca2+L channels of the plasma membranes of the MMC Conclusions- The data obtained as a result of studying the mechanisms of action of the alkaloid dihydroathysine are of great practical importance and can be recommended for optimizing the process of purposeful creation of a new generation of vasorelaxant drugs
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