Summary
Beta-mercaptoprophylamine (MPA) in small concentrations causes an increase, in the amplitude of contractions of an isolated heart, and in large concentrations — a decrease with a simultaneously rising rhythm frequency; in a 1:100 dilution it causes stoppage of the heart in the diastole.
The effect of MPA on the cardiovascular system and respiration in rabbits was manifesred by a brief lessening of the blood pressure and stimulation of respiration. Cats were found to have a biphasic character of an arterial pressure change: at first a decrease and then an increase.
The depressor effect of the preparation is offset by preliminary atropinization. The pressor effect was lessened by serving the vagus nerves.
MPA does not produce a substantial influence on the morphological composition of the peripheral blood, homor globin level and, ESR but accelerates clotting, of the blood and increases the strength of capillaries.
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Kozlov, V.A. The effect of β-mercaptoprophylamine on the cardiovascular system and the morphological composition of peripheral blood. Bull Exp Biol Med 61, 548–551 (1966). https://doi.org/10.1007/BF01892451
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DOI: https://doi.org/10.1007/BF01892451