1. Department of Physiology and Biophysics; Institute of Biomedical Science; University of São Paulo; 05508-000 São Paulo SP Brazil
2. Department of Pharmacology; Institute of Biomedical Science; University of São Paulo; 05508-000 São Paulo SP Brazil
3. Department of Physiology, Ribeirão Preto School of Medicine; University of São Paulo; 14049-900 Ribeirão Preto SP Brazil