ListarProducción científica por tema "TRYPANOSOMA CRUZI"
Mostrando ítems 41-60 de 81
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Immune response to Trypanosoma cruzi shed acute phase antigen in children from an endemic area for Chagas'disease in Bolivia
(Mem. Inst. Oswaldo Cruz, 1997)A field study of the immune response to the shed acute phase antigen (SAPA) of Trypanosoma cruzi was carried out in the locality of Mizque, Cochabamba department, Bolivia. Schoolchildren (266), with an average of 8.6 ± 3.6 ... -
Immunopathologie de la trypanosomiase américaine
(Institut Pasteur, 1993)SUMMARY. lmmunopathology of American trypanosomiasis Chagas'disease, caused by infection with Trypanosoma cruzi, affects 14-16 million people in Latin America. Clinical manifestations are represented by cardiomyopathy ... -
Impairment of monocytic function during Trypanosoma cruzi infection
(Clinical and Diagnostic Laboratory Immunology, 1994-11)During acute infection, Trypanosoma cruzi, the etiologic agent of Chagas' disease, causes immunosuppression by mechanisms that are not fully delineated. Since mononuclear phagocytes are major target cells in trypanosomiasis, ... -
In vitro activity and mutagenicity of bisbenzylisoquinolines and quinones against Trypanosoma cruzi Tripomastigotes
(PHYTOTHERAPY RESEARCH, 1994)Abstract. The accidental transmission of Chagas' disease by donor blood is recognized as a serious problem in the Latin America. This paper describes the screening of natural products as possible new chemoprophylactic ... -
Inter-relation of sylvatic and domestic transmission of Trypanosoma cruzi in areas with and without domestic vectorial transmission in Minas Gerais, Brazil
(Mem. Inst. Oswaldo Cruz, 1995)During the period 1980-1986, we captured triatomine bugs and mammalian reservoir hosts from sylvatic and domestic situations in different municipalities of the State of Minas Gerais. Trypanosoma cruzi was isolated from ... -
Interprétation génétique des zymogrammes de flagellés des genres Trypanosoma et Leishmania
(C.R. Acad. Sc., 1981)L'analyse de la variabilité enzymatique entre des souches de Trypanosoma cruzi conduit à penser que ces organismes sont diploïdes et qu'il existe ou a existé récemment une forme de sexualité au moins occasionnelle. Les ... -
Isozyme variability in Trypanosoma cruzi, the agent of Chagas' disease : genetical, taxonomical, and epidemiological significance
(Evolution, 1988)Abstract. A genetic interpretation of the zymograms of 524 Trypanosoma cruzi stocks from various hosts and representing a broad geographical range (United States to Southern Brazil) reveals high ... -
Isozymic studies and epidemiological data of Trypanosoma cruzi from Arequipa (Perú), Pacific side
(Ann. Soc. Belge Med. Trop., 1985)Summary. The authors present some epidemiological data (infestation rates for houses and triatomine vectors) concerning Chagas' disease in Arequipa region (Peru). lsoenzymic analysis of 39 Trypanosoma cruzi stocks from ... -
Isozymic variability of Trypanosoma cruzi : biological and epidemiological significance
(Ann. Soc. Belge Med. Trop., 1985)Summary. Genetic interpretation of. T. cruzi zymograms has led to various hypotheses which are reviewed. -
L'analyse SDS-PAGE des protéines et antigènes de surface révèle une forte hétérogénéité chez les clones naturels de Trypanosoma cruzi, corrélée à la variabilité isoenzymatique
(C.R. Acad. Sci., 1991)Résumé. Les profils des protéines de Surface et des antigènes de surface de 19 clones de laboratoire de Trypasonoma cruzi, représentant 17 profils isoenzymatiques differents (zymodémes), ont été comparés par analyse ... -
Linkage disequilibrium in natural populations of Trypanosoma cruzi (Flagellate), the agent of Chagas'disease
(J. Protozool., 1988)ABSTRACT. We have studied linkage disequilibrium in natural populations of Trypanosoma cruzi, the agent of Chagas' disease, by analyzing (i) a set of 524 stocks from the whole geographical range of the ... -
Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia
(Transactions of the Royal Society of Tropical Medicine and Hygiene, 1997)Abstract The role of Triatoma sordida in the domestic transmission of Trypanosoma cruzi was assessed in 7 rural localities in Velasco Province, Department of Santa Cruz, Bolivia. Tri. sordida, the only triatomine species ... -
La maladie de Chagas en Bolivie : données préliminaires sur les cycles domestiques : méthodes simplifiées de capture des triatomes
(Ent. Med. et Parasitol, 1984)Résumé. Nous présentons ici des résultats portant sur l'examen de 1664 spécimens de Triatoma infestans récoltés en Bolivie dans des gîtes domestiques. Le taux global d'infection, était de 42 %, et les maisons ne contenant ... -
Natural populations of Trypanosoma cruzi, the agent of Chagas disease, have a complex multiclonal structure
(Proc. Natl. Acad. Sci., 1986)ABSTRACT. We have studied 15 gene loci coding for enzymes in l2l Trypanosoma cruzi stocks from a wide geographic rangFfrom the United States and Mexico to Chile and southern Brazil . T. cruei is diploid but reproduction ... -
New electrophoretic evidence of genetic variation and diploidy in Trypanosoma cruzi, the causative agent of Chagas' disease
(Genética, 1985)Abstract. By changing clcctrophoretic conditions additional genetic variability was observed in both previously and newly analysed enzymatic systemes in Trypanosoma cruzi . Inferences the quaternary structure of enzymes ... -
PCR-based diagnosis for Chagas' disease in Bolivian children living in an active transmission area : comparison with conventional serological and parasitological diagnosis
(Parasitology, 1997)Abstract. A large field study has been performed in the Cochabamba region of Bolivia with the aim of comparing the polymerase chain reaction (PCR) with other diagnostic methods for Chagas' disease. The amplification of ... -
Population genetics of Trypanosoma cruzi and Trypanosoma rangeli : taxonomical and epidemiological purpose
(Biol Res, 1993)A genetic analysis of a set of Trypanosoma cruzi and Trypanosoma rangeli stocks was performed by two combined approaches, namely mutilocus enzyme electrophoresis (MLEE) and labeling by DNA probes. A considerable genetic ... -
Population structure of Andean Triatoma infestans : allozyme frequencies and their epidemiological relevance
(Medical and Veterinary Entomology, 1998)Abstract. Triatoma infestans (Hemiptera: Reduviidae) from 22 Andean localities in Bolivia (n = 968) and Peru (n=37) were analysed by multi-locus enzyme electrophoresis. Among 12 gene-enzyme systems analysed, GPD, 6GPD and ... -
Prevalencia de la infección humana por T. cruzi en Bolivia
(Acta Andina, 1993)