1. Medicinal Plants Research Center (NPPM); Federal University of Piauí; Teresina PI Brazil
2. Medicine School; Education Institute of Parnaiba Valley (IESVAP); Parnaíba PI Brazil
3. Laboratory of Histological Analysis and Preparation (LAPHIS); Federal University of Piauí; Parnaíba PI Brazil
4. Piracicaba Dental School; State University of Campinas - UNICAMP; Department of Morphology; Division of Histology; Piracicaba SP Brazil
5. Laboratory of Experimental Physiopharmacology (LAFFEX); Federal University of Piauí; Parnaíba PI Brazil
6. Yale Cardiovascular Research Center; Department of Internal Medicine; Yale University School of Medicine; New Haven CT USA