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ORIGINAL ARTICLE
Year : 2016  |  Volume : 12  |  Issue : 45  |  Page : 96-101

Biological activities of Croton palanostigma Klotzsch


1 Post Graduation in Biology of Infectious and parasitary Agents, Institute of Biological Sciences, Federal University of Para, Guama, Brazil
2 Faculty of Pharmaceutical Sciences, Institute of Health Sciences, Federal University of Para, Guama, Brazil
3 Post Graduation in Pharmaceutical Sciences, Institute of Health Sciences, Federal University of Para, Guama, Brazil
4 Institute of Technology, Federal University of Para, Guama, Brazil
5 Section of Parasitology, Evandro Chagas Institute, Br. 316, S/N, Levilândia, Ananindeua, PA, CEP, 67030-000, Brazil

Correspondence Address:
Maria Fâni Dolabela
Post Graduation in Pharmaceutical Sciences, Institute of Health Sciences, Federal University of Para, Augusto Correa Street, 1, Belém, PA, CEP, 67030-000
Brazil
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Source of Support: The authors thank to Capes, CNPq and Fundacao de Amparo a Pesquisa do Para and PADRC-UFPA by funding support our research., Conflict of Interest: None


DOI: 10.4103/0973-1296.176109

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Background: Different species of Croton are used in traditional Amazonian medicine. Among the popular uses are treatment of bacterial diseases, poorly healing wounds and fevers. Objective: This study evaluated the antileishmanial, antiplasmodial and antimicrobial activities of the extracts and diterpenes of Croton palanostigma Klotzsch (Euphorbiaceae). Materials and Methods: Leaves and bark were extracted with dichloromethane and methanol. The bark dichloromethane extract (BDE) was chromatographed on a column, obtaining cordatin and aparisthman. The extracts and diterpenes were assayed thought agar disk diffusion method and their bactericidal or fungicidal effects were evaluated by minimum bactericidal or fungicidal concentration. The antiplasmodial activity was evaluated after 24 and 72 h of exposition. The antileishmanial activity was performed on promastigotes forms of Leishmania amazonensis. Results: The bark methanol extract (BME) and cordatin were not active against any microbial strains tested; BDE and leaves methanol extract (LME) were positive for Pseudomonas aeruginosa and aparisthman was positive for Candida albicans. In the determination of the minimum bactericidal concentration, neither of them were active in the highest concentration tested. The extracts and diterpenes were inactive in Plasmodium falciparum, except the LME in 72 h. Any extract was shown to be active in promastigote forms of L. amazonensis. Conclusion: These results indicate that the BDE and LME did not inhibit the bacterial growth, then they probably had bacteriostatic effect. LME presented activity in P. falciparum.


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