1. Department of Pathology, Laboratory of Immunophysiology, Biological and Health Sciences Center, Federal University of Maranhão (UFMA), 65085-580 São Luis, Brazil
2. Apis Flora Industrial e Comercial Ltda, 14020-670 Ribeirão Preto, SP, Brazil
3. Department of Science Physiology, Laboratory for Teaching and Research of Physiology, Federal University of Maranhão (UFMA), 65085-580 São Luis, Brazil