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Origins of Chagas disease: Didelphis species are natural hosts of Trypanosoma cruzi I and armadillos hosts of Trypanosoma cruzi II, including hybrids.
Trypanosoma cruzi, the causative agent of Chagas disease, has at least two principal intraspecific subdivisions, T. cruzi I (TCI) and T. cruzi II (TCII), the latter containing up to five subgroupsExpand
American trypanosomiasis (Chagas' disease) and the role of molecular epidemiology in guiding control strategies
Chagas' disease is a parasitic infection that has far reaching consequences for public health and national economies in Latin America. The latest molecular typing methods may help in developingExpand
Bioactive alkyl phenols and embelin from Oxalis erythrorhiza.
The benzoquinone embelin and four alkyl phenols were isolated from an Argentinean collection of Oxalis erythrorhiza. 3-Heptadecyl-5-methoxy-phenol is reported for the first time. The structures wereExpand
Resolution of multiclonal infections of Trypanosoma cruzi from naturally infected triatomine bugs and from experimentally infected mice by direct plating on a sensitive solid medium.
The isolation of biological clones of Trypanosoma cruzi by microscopically dispensing individual organisms or by serial dilution is laborious and time consuming. The inability to resolve mixed T.Expand
Animal reservoirs for Trypanosoma cruzi infection in an endemic area in Paraguay.
Animal reservoirs for Trypanosoma cruzi infection were investigated in 5 communities in the Department of San Pedro, currently one of Paraguay's most highly endemic areas. A total of 112 domesticExpand
Residual effect of lambdacyhalothrin on Triatoma infestans.
Insecticidal residual effect and triatomine infestation rates in houses of a community fumigated with lambdcyhalothrin (Icon) are reported. No mortality was observed in 5th-instar Triatoma infestansExpand
Preliminary pharmacological studies on Eugenia uniflora leaves: xanthine oxidase inhibitory activity.
Eugenia uniflora is widely used in Paraguayan folk medicine. A hydroalcoholic extract of the leaves showed some central nervous system activity in hippocratic screening when given intraperitoneally,Expand
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 effectsExpand
Leishmanicidal and Trypanocidal activities of Acetogenins isolated from Annona glauca
The dichloromethane extract of seeds of Annona glauca (Annonaceae) was active against three strains of Leishmania species. Nine known acetogenins were isolated and identified and then evaluated inExpand
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 ofExpand