1. Department of Physiology and Pharmacology, Federal University of Pernambuco, 50670-901 Recife, PE, Brazil
2. Department of Histology and Embryology, Federal University of Pernambuco, 50670-901 Recife, PE, Brazil
3. Department of Antibiotics, Federal University of Pernambuco, 50670-901 Recife, PE, Brazil
4. Laboratory of Pharmacology of Bioactive Products, Department of Physiology and Pharmacology, Federal University of Pernambuco, Avenida Professor Moraes Rêgo, S/N, Cidade Universitária, 50670-901 Recife, PE, Brazil