Trypanosome Cruzi
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Minimum free energy predicted base pairing in the 39 nt spliced leader and 5’ UTR of calmodulin mRNA from Trypanosoma cruzi: influence of the multiple trans-splicing sites
ABSTRACT We analyzed the compositional changes and the stable base pairs in the predicted secondary structure of the 5’ UTR calmodulin mRNA in T. cruzi. The three copies of calmodulin in T. cruzi genome display variable position of the trans splicing sites and give rise to several mRNA that differs slightly on 5’ UTR composition in the epimastigote stage
An. Acad. Bras. Ciênc.. Publicado em: 16/10/2017
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2. Trypanosoma cruzi I genotype among isolates from patients with chronic Chagas disease followed at the Evandro Chagas National Institute of Infectious Diseases (FIOCRUZ, Brazil)
ABSTRACT INTRODUCTION: Trypanosoma cruzi is the etiologic agent of Chagas disease in humans, mainly in Latin America. Trypanosome stocks were isolated by hemoculture from patients followed at Evandro Chagas National Institute of Infectious Diseases (FIOCRUZ) and studied using different approaches. METHODS: For species and genotype identification, the stoc
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-02
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3. Behavioral fever response in Rhodnius prolixus (Reduviidae: Triatominae) to intracoelomic inoculation of Trypanosoma cruzi
Abstract: INTRODUCTION: Behavioral fever is a response to infections with microorganisms observed in some poikilothermic animals. Rhodnius prolixus is involved in the transmission of two parasites: Trypanosoma cruzi (pathogenic for humans and transmitted in feces) and Trypanosoma rangeli (non-pathogenic for humans, pathogenic for Rhodnius and transmitted b
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-08
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4. Relações vetor-hospedeiro de Rhodnius brethesi Matta, 1919 (Hemiptera: Reduviidae: Triatominae), em piaçabais do médio rio Negro, Amazonas, Brasil
Rhodnius brethesi Matta, 1919 is among the species of Triatominae Amazon with great epidemiological importance, especially in regions of middle and upper Rio Negro, due to been vectors of Trypanosoma cruzi Chagas, 1909 and Trypanosoma rangeli Tejera, 1920. R. brethesi are associated with palm Leopoldinia piassaba Wallace, which represents an important source
Publicado em: 2010
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5. Trypanossoma cruzi: diversity, phylogenetics analysis and ecogeographic patterns of wild isolates. / Trypanosoma cruzi: diversidade, relações filogenéticas e padrões ecogeográficos de isolados silvestres.
T. cruzi comprises highly heterogeneous populations classified as TCI and TCIIa-e lineages. This study characterized large wild mammal and vector strains of various geographical origins, and human isolates from Amazonia. Phylogenetic analysis using SSU rDNA and Cyb genes inferred relationships among lineages and their biogeographic patterns. ITS1 rDNA and RA
Publicado em: 2008
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6. Investigação de atividade biológica de composto carbolínico sobre Trypanosoma cruzi
A doença de Chagas é causada pelo protozoário Trypanosoma cruzi, a qual afeta 18 milhões de pessoas em toda a América Latina. A terapêutica disponível atualmente é limitada e parcialmente eficaz, em função disto torna-se evidente que novos compostos com atividade tripanocida devem ser desenvolvidos. Alguns compostos carbolínicos têm demonstrado a
Publicado em: 2008
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7. Ticks, ivermectin, and experimental Chagas disease
Following an infestation of dogticks in kennels housing dogs used for long-term studies of the pathogenesis of Chagas disease, we examined the effect of ivermectin treatment on the dogs, ticks, trypanosome parasites, and also on triatomine vectors of Chagas disease. Ivermectin treatment was highly effective in eliminating the ticks, but showed no apparent ef
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-12
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8. Predominance of Trypanosoma rangeli infection in children from a Chagas disease endemic area in the west-shore of the Panama canal
A total of 206 serum samples from children (3-14 years old) living in the Amador County (La Chorrera District, Province of Panama) were screened by indirect immunofluorescence antibody test (IFAT) for the presence of antibodies against Trypanosoma cruzi. Positive sera were confirmed by recombinant enzyme-linked immunosorbent assay (ELISA) and Western blot an
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-11
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9. Blood and intestinal parasites of squirrels (Rodentia: Sciuridae) in Amazonian Brazil
We report the result of an examination for blood and intestinal protozoa in 12 specimens of the red squirrel Sciurus spadiceus (Rodentia: Sciuridae) from Birroque, municipality of Plácido de Castro, state of Acre, Brazil. No parasites were detected in thin, Giemsa-stained blood films of the animals, but culture of the blood of three in Difco B45 medium bloo
Memórias do Instituto Oswaldo Cruz. Publicado em: 2004-10
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10. Trypanosoma (Herpetosoma) rangeli Tejera, 1920: an updated review
Trypanosoma rangeli, a parasite generally considered non-pathogenic for man, is the second species of human trypanosome to be reported from the New World. The geographical distribution of T. rangeli often overlaps with that of T. cruzi, the same vertebrate and invertebrate hosts being infected. Their differentiation thus becomes of real, practical importance
Memórias do Instituto Oswaldo Cruz. Publicado em: 2003-06
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11. Triatomines Involved in Domestic and Wild Trypanosoma cruzi Transmission in Concepción, Corrientes, Argentina
An entomological and serological survey was performed in three localities of the Department of Concepción, Province of Corrientes, Argentina in 1998 and 1999, to identify triatomines species involved in domestic and wild transmission of Chagas disease. Triatomines were collected by man/hour capture in 32 houses randomly selected and 44 nearby outdoor ecotop
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-01
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12. Detecção do DNA do Trypanosoma cruzi pela reação em cadeia da polimerase (PCR) em pacientes chagasicos cronicos
Chagas disease, caused by Trypanosoma cruzi, is an important endemic illness in Latin America, where an estimated 16 to 18 million persons are chronically infected. The trypanosomiasis involves a characteristic acute phase with high levels of parasites in the bloodstream, allowing a diagnosis by parasitological methods, and a chronic phase in which parasites
Publicado em: 2001