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Genes de cisteíno proteases (Catepsina L-like) de Trypanosoma rangeli: polimorfismo, relações filogenéticas e alvos para diagnóstico e genotipagem. / Cathepsin L-like genes of Trypanosoma rangeli: phylogenetic analysis and polymorphic sequences as markers for lineage genotyping and diagnosis.

Nós isolamos e seqüenciamos genes que codificam Catepsina L-like em diversos isolados de T.rangeli de humano, mamíferos silvestres e Rhodnius spp., do centro e sul da América. Análises filogenéticas de seqüências que codificam a proteína madura de T. rangeli, outras espécies de T...

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Action of Trypanosoma rangeli in infections with virulent Trypanosoma cruzi populations

In experimental murine infections with Trypanosoma rangeli it has been observed development immune response to Trypanosoma cruzi. The aim of the present work was to analyze the result of antigenic stimuli and the protective effect with T. rangeli in T. cruzi infections. Mice grou...

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Rhodnius stali: new vector infected by Trypanosoma rangeli (Kinetoplastida, Trypanosomatidae)

Abstract INTRODUCTION Rhodnius stali infection by Trypanosoma rangeli is reported in this study for the first time. METHODS The triatomines were collected from the campus of the Federal University of Acre in Rio Branco, Acre, Brazil. The identification of T. rangeli was confir...

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Salivaria or Stercoraria? The Trypanosoma rangeli dilemma

The taxonomic status of Trypanosoma rangeli as well as the tools for its molecular characterization is briefly commented....

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Differential in vitro activity of the DNA topoisomerase inhibitor idarubicin against Trypanosoma rangeli and Trypanosoma cruzi

In this study the effect of eight DNA topoisomerase inhibitors on the growth Trypanosoma rangeli epimastigotes in cell culture was investigated. Among the eight compounds tested, idarubicin was the only compound that displayed promising trypanocidal activity with a half-maximal g...

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Detection of Trypanosoma cruzi and Trypanosoma rangeli Infection by Duplex PCR Assay Based on Telomeric Sequences

We used the species specificity and repetitious nature of subtelomeric kinetoplastida sequences to generate a duplex PCR assay for the simultaneous detection of Trypanosoma cruzi and Trypanosoma rangeli in experimentally and naturally infected triatomine (Reduviid) bugs and in in...

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Vaccination with epimastigotes of different strains of Trypanosoma rangeli protects mice against Trypanosoma cruzi infection

In our laboratory, we have developed a model of vaccination in mice with Trypanosoma rangeli, a non-pathogenic parasite that shares many antigens with Trypanosoma cruzi. The vaccinated mice were protected against infection with virulent T. cruzi. The goal of the present work was ...

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First report on the occurrence of Trypanosoma rangeli Tejera, 1920 in the state of Ceará, Brazil, in naturally infected triatomine Rhodnius nasutus Stål, 1859 (Hemiptera, Reduviidae, Triatominae)

The aim of this work was to identify and report the occurrence of Trypanosoma rangeli and Trypanosoma cruzi in naturally infected Rhodnius nasutus (Hemiptera, Reduviidae, Triatominae) in the state of Ceará, Brazil. Triatomines feces, salivary glands, and hemolymph were collected ...

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Detecção da infecção por Trypanosoma cruzi e Trypanosoma rangeli em vetores triatomíneos através da amplificação dos gens de histona H2A/SIRE e sno-RNA-C11

Embora o Trypanosoma rangeli não seja patogênico para o homem, sua importância médica e epidemiológica reside no fato de compartilhar vetores, reservatórios e áreas geográficas com o Trypanosoma cruzi, agente causal da Doença de Chagas. Neste estudo, para distinguir T. cruzi de T...

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Estudo das sialidases de Trypanosoma rangeli: caracterização genômica e expressão heteróloga de uma trans-sialidase

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biotecnologia e Biociências, Florianópolis, 2014....

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Avaliação do perfil proteico de Trypanosoma rangeli durante o processo de diferenciação celular in vitro

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biotecnologia e Biociências, Florianópolis, 2014....

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Efeito dos parasitos Trypanosoma cruzi e Trypanosoma rangeli em aspectos do fitness de Rhodnius prolixus

Os triatomíneos são insetos hematófagos capazes de transmitir Trypanosoma cruzi, agente causador da doença de Chagas. Existem poucos estudos sobre a virulência do parasito ao inseto vetor e, com isso, o parasito tem sido considerado por diversos autores como não-patogênico nesse ...

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Geração e análise comparativa de seqüências genômicas de Trypanosoma rangeli / The generation and comparative analisys of genomic sequences of the Trypanosoma rangeli

The hemoflagellate protozoan parasite Trypanosoma (Herpetosoma) rangeli Tejera, 1920 (Kinetoplastida: Tryponosomatidae) share several species of invertebrate and vertebrate hosts with T. cruzi, etiological agent of Chagas disease. Recently, the genome of 3 trypanosomatid species ...

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First report of Rhodnius montenegrensis (Hemiptera: Reduviidae: Triatominae) infection by Trypanosoma rangeli

Introduction: This study reports for the first time the infection of Rhodnius montenegrensis by Trypanosoma rangeli. Methods: The triatomines were manually collected in Attalea speciosa in the municipality of Buritis, Rondônia. The identification of the trypanosomatid species ...

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