ETHNOPHARMACOLOGICAL RELEVANCE: Copaiba oil has been used in folk medicine since the 19th century. The use of copaiba oils to treat leishmaniasis is cited in several ethnopharmacological studies. Nevertheless, the potential antileishmania of copaiba oils had not been studied. AIM OF THE STUDY: Eight different kinds of Brazilian copaiba oils were screened for antileishmanial activity. MATERIALS AND METHODS: The antiproliferative effect of copaiba oil on promastigote and amastigote axenic were determined. To determine the survival index peritoneal macrophage were infected with promastigotes of Leishmania amazonensis and treated with copaiba oil. The cytotoxic effect of copaiba oil was assessed on macrophage strain J774G8 by assay of sulforhodamine B. RESULTS: Copaiba oils showed variable levels of activity against promastigote forms with IC(50) values in the range between 5 and 22microg/mL. The most active oil was that from Copaifera reticulata (collected in Pará State, Brazil) with IC(50) values of 5, 15, and 20microg/mL for promastigote, axenic amastigote and intracellular amastigote forms, respectively. Amphotericin B showed IC(50) of 0.058 and 0.231microg/mL against promastigote and amastigote forms, respectively. Cytotoxicity assay showed that this copaiba oil obtained from Copaifera reticulata showed low cytotoxicity against J774G8 macrophages. CONCLUSION: Copaiba oils showed significant activity against the parasite Leishmania amazonensis.
ETHNOPHARMACOLOGICAL RELEVANCE: Copaiba oil has been used in folk medicine since the 19th century. The use of copaiba oils to treat leishmaniasis is cited in several ethnopharmacological studies. Nevertheless, the potential antileishmania of copaiba oils had not been studied. AIM OF THE STUDY: Eight different kinds of Brazilian copaiba oils were screened for antileishmanial activity. MATERIALS AND METHODS: The antiproliferative effect of copaiba oil on promastigote and amastigote axenic were determined. To determine the survival index peritoneal macrophage were infected with promastigotes of Leishmania amazonensis and treated with copaiba oil. The cytotoxic effect of copaiba oil was assessed on macrophage strain J774G8 by assay of sulforhodamine B. RESULTS:Copaiba oils showed variable levels of activity against promastigote forms with IC(50) values in the range between 5 and 22microg/mL. The most active oil was that from Copaifera reticulata (collected in Pará State, Brazil) with IC(50) values of 5, 15, and 20microg/mL for promastigote, axenic amastigote and intracellular amastigote forms, respectively. Amphotericin B showed IC(50) of 0.058 and 0.231microg/mL against promastigote and amastigote forms, respectively. Cytotoxicity assay showed that this copaiba oil obtained from Copaifera reticulata showed low cytotoxicity against J774G8 macrophages. CONCLUSION:Copaiba oils showed significant activity against the parasite Leishmania amazonensis.
Authors: Olena Sivak; Pavel Gershkovich; Molly Lin; Ellen K Wasan; Jinying Zhao; David Owen; John G Clement; Kishor M Wasan Journal: Lipids Health Dis Date: 2011-08-08 Impact factor: 3.876
Authors: Gilmarcio Z Martins; Raquel R D Moreira; Cleopatra S Planeta; Adélia E Almeida; Jairo K Bastos; Lígia Salgueiro; Carlos Cavaleiro; Maria do Céu Sousa Journal: Pharmacogn Mag Date: 2015-05 Impact factor: 1.085
Authors: Klinger Antonio da Franca Rodrigues; Layane Valéria Amorim; Jamylla Mirck Guerra de Oliveira; Clarice Noleto Dias; Denise Fernandes Coutinho Moraes; Eloisa Helena de Aguiar Andrade; Jose Guilherme Soares Maia; Sabrina Maria Portela Carneiro; Fernando Aécio de Amorim Carvalho Journal: Evid Based Complement Alternat Med Date: 2013-02-20 Impact factor: 2.629