1. Laboratory of Neuroendocrinology Department of Basic and Oral Biology Pathology School of Dentistry of Ribeirão Preto University of São Paulo São Paulo Brazil
2. Department of Physiology Faculty of Basic Medical Sciences College of Medicine University of Lagos Lagos Nigeria
3. Department of Physiology School of Medicine of Ribeirão Preto University of São Paulo São Paulo Brazil
4. Departmento de Biofísica Escola Paulista de MedicinaUniversidade Federal de São Paulo São Paulo Brazil