a tropical weapon against Chagas disease.

The present study pretends to evaluate the efficacy of the crude chloroform bark extract of , then the activity will be compared with the reference drug, benznidazole, in acute infected mice when administered by oral route. The chloroformic extract of was administered by oral route at 5, 10 and 50 mg/kg daily for two weeks. This study has shown a moderate efficacy of the bark extract in reducing parasitaemia in 42 to 54% after a monitoring of 60 days post-infection and when compared with control groups.

First report of Sapajus cay naturally infected by Trypanosoma cruzi in San Pedro Department, Paraguay.

To verify the occurrence of natural Trypanosoma cruzi infection in non-human primates from a rural endemic area of the east region of Paraguay, xenodiagnosis was performed in 35 animals belonging to two species. For genotyping and T. cruzi discrete typing unit (DTU) assignment, a combination of four markers was used, including amplification products of the small (18S) and large (24Sα) subunits of ribosomal ribonucleic acid gene, the intergenic region of mini-exon gene and the heat shock protein 60 Eco-RV polymerase chain reaction-restriction fragment length polymorphism (HSP60/EcoRV-PCR-RFLP).

Finding of leishmanicidal activity of 14-hydroxylunularin in mice experimentally infected with Leishmania infantum.

In this study, we report the in vivo efficacy of 14-hydroxylunularin evaluated in BALB/c mice experimentally infected with promastigotes of Leishmania infantum (syn L. chagasi), the major causative agent of visceral leishmaniasis in Latin America. Seven days post-infection, treatment with 14-hydroxylunularin started and it was administered by oral and subcutaneous routes in doses of 10 and 25 mg/kg of weight for ten days using Glucantime® as reference drug.

Zanthoxylum chiloperone leaves extract: first sustainable Chagas disease treatment.

Ethnopharmacological Relevance: Zanthoxylum chiloperone var. angustifolium Engl. (Rutaceae) stem bark is used traditionally in Paraguay for its antiparasitic properties.

Antileishmanial activity of furoquinolines and coumarins from Helietta apiculata.

Unlabelled: The bark infusion of H. apiculata are used to treat wound healing related to cutaneous leishmaniasis and as anti-inflammatory.

Aim Of The Study: To isolate, purify active constituents of H.

Effects of canthin-6-one alkaloids from Zanthoxylum chiloperone on Trypanosoma cruzi-infected mice.

Canthin-6-one (1), isolated from Zanthoxylum chiloperone (Rutaceae), possesses a broad sprectum of antifungal and leishmanicidal activities. In this study, we have examined the antiparasitic effects of canthin-6-one (1), 5-methoxycanthin-6-one (2), canthin-6-one N-oxide (3), as well as that of the total alkaloids of Zanthoxylum chiloperone stem bark, in Balb/c mice infected either acutely or chronically with Trypanosoma cruzi. The compounds were administered orally or subcutaneously at 5mg/kg/day for 2 weeks, whereas the alkaloidal extract was given at 50mg/kg/day for 2 weeks.

Efficacy of orally administered 2-substituted quinolines in experimental murine cutaneous and visceral leishmaniases.

We report in this study the in vivo efficacy of nine 2-substituted quinolines on the Leishmania amazonensis cutaneous infection murine model and on the Leishmania infantum and Leishmania donovani visceral infection murine models. In the case of the L. amazonensis model, quinolines were administered orally at 25 mg/kg twice daily for 15 days.