1. Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil;
2. Department of Cellular and Molecular Biology, Federal University of Paraíba, João Pessoa, Brazil;
3. Institute of Biology, University of Campinas, Campinas, Brazil;
4. Department of Morphology, Institute of Biosciences, São Paulo State University, Botucatu, Brazil;
5. Department of Medicine, University of Missouri School of Medicine, Columbia, MO, USA;
6. Science and Technology Institute, Federal University of São Paulo, São José dos Campos, Brazil