The negative chronotropic effects of (±)-propranolol and (±)-4-NO2-propranolol in the rat isolated right atrium are due to blockade of the 6-nitrodopamine receptor - Oliveira, Denis Lima; Cardoso, Vinicius Francisco; Britto Júnior, José; Fuguhara, Vivian de Lima; Frecentese, Francesco; Sparaco, Rosa; Santagada, Vincenzo; Caliendo, Giuseppe; Pupo, André Sampaio; Antunes, Edson; De Nucci, Gilberto (Naunyn-Schmiedeberg's Archives of Pharmacology, 2025)