Article
In vitro and in vivo activity of meglumine antimoniate produced at Farmanguinhos-Fiocruz, Brazil, against Leishmania (Leishmania) amazonensis, L (L.) chagasiand L (Viannia) braziliensis
Registro en:
MORAIS TEIXEIRA, Eliane de et al. In vitro and in vivo activity of meglumine antimoniate produced at Farmanguinhos-Fiocruz, Brazil, against Leishmania (Leishmania) amazonensis, L (L.) chagasi and L (Viannia) braziliensis. Mem. Inst. Oswaldo Cruz. 2008, vol.103, n.4, pp. 358-362
0074-0276
10.1590/S0074-02762008000400008
Autor
Teixeira, Eliane de Morais
Carvalho, Alcione Silva de
Costa, Jorge C. S. da
Duarte, Silvio L.
Mendonça, Jorge S.
Boechat, Núbia
Rabello, Ana Lúcia Teles
Resumen
The leishmanicidal activity of four batches of meglumine antimoniate, produced in Farmanguinhos-Fiocruz, Brazil (TAMs), was assessed and compared to Glucantime®-Aventis Pharma Ltda. Using the amastigote-like in vitro model, the active concentrations of Sbv varied from 10µg/ml to 300 µg/ml for L. (L.) chagasiand from 50µg/ml to 300µg/ml for L. (L.) amazonensis, with no statistically significant differences among the four batches of TAMs and Glucantime®. The inhibitory concentrations (IC50) determined by the amastigote-infected macrophage model for TAM01/03 and Glucantime® were, respectively: 26.3µg/ml and 127.6µg/ml forL. chagasi,15.4µg /ml and 22.9µg/ml for L. amazonensis, and 12.1µg/ml and 24.2µg/ml for L. (V.) braziliensis. The activities of the four batches of TAMs were confirmed in an in vivo model by assessing, during eight weeks skin lesions caused by L. braziliensis in hamster that were treated with 20mg Sbv/Kg/day for 30 consecutive days. The meglumine antimoniate produced by Farman-guinhos was as effective as the reference drug, Glucantime®-Aventis, against three species of Leishmania that are of medical importance in Brazil.