1. Departments of Morphology; Institute of Biosciences, Univ Estadual Paulista-UNESP; Distrito de Rubião Junior s/n° 18618-970 Botucatu SP Brazil
2. Departments of Pharmacology; Institute of Biosciences, Univ Estadual Paulista-UNESP; Distrito de Rubião Junior s/n° 18618-970 Botucatu SP Brazil
3. Department of Morphology, Stomatology and Physiology, Dental School of Ribeirão Preto; University of São Paulo-USP; Ribeirão Preto SP Brazil