1. Department of Pharmaceutical SciencesState University of Ponta Grossa General Carlos Cavalcanti Avenue 4748 84900-030 Ponta Grossa Paraná Brazil
2. Department of General BiologyState University of Ponta Grossa General Carlos Cavalcanti Avenue 4748 84900-030 Ponta Grossa Paraná Brazil
3. Department of Clinical and Toxicological AnalysisState University of Ponta Grossa General Carlos Cavalcanti Avenue 4748 84900-030 Ponta Grossa Paraná Brazil
4. Department of Biochemistry and Molecular BiologyFederal University of Paraná Polytechnic Center 81530-000 Curitiba Paraná Brazil
5. National Center for Natural Products ResearchUniversity of Mississippi MS 38677 Oxford MS USA