Pavlovic, M. (35335027800)M. (35335027800)PavlovicPetkovic, D. (7006263342)D. (7006263342)PetkovicCvetkovic, M. (59022151300)M. (59022151300)CvetkovicZdjelar, K. (6505993671)K. (6505993671)ZdjelarStarcevic, V. (7005374307)V. (7005374307)StarcevicBosnic, O. (6508388358)O. (6508388358)Bosnic2025-07-022025-07-021992https://doi.org/10.1007/978-3-0348-7262-1_23https://www.scopus.com/inward/record.uri?eid=2-s2.0-0026597823&doi=10.1007%2f978-3-0348-7262-1_23&partnerID=40&md5=0c303fa4f9f3d60563b588f902f5aa63https://remedy.med.bg.ac.rs/handle/123456789/14640The experiments done on the isolated right ventricle of rat hear suspended in the bath for isolated organs with oxygenated Tyrode's solution showed that PgI2 (2,3 x 10-6 mmol) produced its positive inotropic effect indirectly by promoting both beta-adrenoreceptors and calcium entry through slow calcium channels because this effect could be blocked by propranolol (2,3 x 10-2 mmol - beta adrenoreceptor blocker) or verapamil (4,3 x l0-3 mmol - slow calcium channel blocker).