1. Laboratory of Pathophysiology, Butantan Institute, São Paulo 05503-900, SP, Brazil
2. Postgraduate Program in Toxinology, Butantan Institute, São Paulo 05503-900, SP, Brazil
3. Laboratory of Pain and Signaling, Butantan Institute, São Paulo 05503-900, SP, Brazil
4. Laboratory of Functional Neuroanatomy of Pain, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo 05508-900, SP, Brazil
5. Laboratory of Neuroscience, Hospital Sírio-Libanês, São Paulo 01308-060, SP, Brazil