Trypanosoma Brucei
Mostrando 1-12 de 643 artigos, teses e dissertações.
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1. Nanoparticulate drug delivery systems for the treatment of neglected tropical protozoan diseases
Abstract Neglected Tropical Diseases (NTDs) comprise of a group of seventeen infectious conditions endemic in many developing countries. Among these diseases are three of protozoan origin, namely leishmaniasis, Chagas disease, and African trypanosomiasis, caused by the parasites Leishmania spp., Trypanosoma cruzi, and Trypanosoma brucei respectively. These d
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 11/02/2019
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2. Trypanosoma cruzi XRNA granules colocalise with distinct mRNP granules at the nuclear periphery
BACKGROUND Eukaryotic ribonucleoprotein (RNP) granules are important for the regulation of RNA fate. RNP granules exist in trypanosomatids; however, their roles in controlling gene expression are still not understood. XRNA is a component of granules in Trypanosoma brucei but has not been investigated in Trypanosoma cruzi. OBJECTIVES This study aimed to inv
Mem. Inst. Oswaldo Cruz. Publicado em: 18/06/2018
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3. Evidence for regulated expression of Telomeric Repeat-containing RNAs (TERRA) in parasitic trypanosomatids
The Telomeric Repeat-containing RNAs (TERRA) participate in the homeostasis of telomeres in higher eukaryotes. Here, we investigated the expression of TERRA in Leishmania spp. and Trypanosoma brucei and found evidences for its expression as a specific RNA class. The trypanosomatid TERRA are heterogeneous in size and partially polyadenylated. The levels of TE
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-08
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4. Antiprotozoal Activity of the Cyclopalladated Complexes Against Leishmania amazonensis and Trypanosoma cruzi
The present study describes the antiprotozoal activities of four cyclopalladated compounds, [Pd(dmba)(μ-Cl)]2, [Pd(dmba)(NCO)(isn)], [Pd(dmba)(N3)(isn)] and [Pd(dmba)(μ-NCO)]2, (dmba: N,N'-dimethylbenzylamine and isn: isonicotinamide), against the diseases leishmaniasis (Leishmania amazonensis and Leishmania infantum), Chagas disease (Trypanosoma cruzi) an
J. Braz. Chem. Soc.. Publicado em: 2016-06
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5. Trypanosoma evansi is alike to Trypanosoma brucei brucei in the subcellular localisation of glycolytic enzymes
Trypanosoma evansi, which causes surra, is descended from Trypanosoma brucei brucei, which causes nagana. Although both parasites are presumed to be metabolically similar, insufficient knowledge of T. evansiprecludes a full comparison. Herein, we provide the first report on the subcellular localisation of the glycolytic enzymes in T. evansi, which is a alike
Mem. Inst. Oswaldo Cruz. Publicado em: 29/05/2015
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6. New drugs with antiprotozoal activity from marine algae: a review
The use of indigenous or remote popular knowledge to identify new drugs against diseases or infections is a well-known approach in medicine. The inhabitants of coastal regions are known to prepare algae extracts for the treatment of disorders and ailments such as wounds, fever and stomach aches, as for the prevention of arrhythmia. Recent trends in drug rese
Rev. bras. farmacogn.. Publicado em: 2014-06
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7. Megazol and its bioisostere 4H-1,2,4-triazole: comparing the trypanocidal, cytotoxic and genotoxic activities and their in vitro and in silico interactions with the Trypanosoma brucei nitroreductase enzyme
Megazol (7) is a 5-nitroimidazole that is highly active against Trypanosoma cruzi and Trypanosoma brucei, as well as drug-resistant forms of trypanosomiasis. Compound 7 is not used clinically due to its mutagenic and genotoxic properties, but has been largely used as a lead compound. Here, we compared the activity of 7 with its 4H-1,2,4-triazole bioisostere
Mem. Inst. Oswaldo Cruz. Publicado em: 18/03/2014
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8. Actin expression in trypanosomatids (Euglenozoa: Kinetoplastea)
Heteroxenic and monoxenic trypanosomatids were screened for the presence of actin using a mouse polyclonal antibody produced against the entire sequence of the Trypanosoma cruzi actin gene, encoding a 41.9 kDa protein. Western blot analysis showed that this antibody reacted with a polypeptide of approximately 42 kDa in the whole-cell lysates of parasites tar
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-08
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9. Structure-based drug design studies on a series of aldolase inhibitors
A tripanossomíase africana, também conhecida como doença do sono, é responsável por um grande número de mortes na África. Até o presente, não há tratamento seguro e eficaz disponível. A enzima aldolase do parasita Trypanosoma brucei é um alvo atrativo e validado para o desenvolvimento de novos fármacos. Uma série de ésteres fosfóricos foi est
J. Braz. Chem. Soc.. Publicado em: 2013-02
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10. Diagnóstico, caracterização molecular e epidemiologia de Trypanosamas de ungulados. / Diagnosis, molecular characterization and epidemiology of Trypanosame of ungulates.
Trypanosamas de diversas espécies podem infectar mamíferos de interesse econômico em todo o mundo. Trypanosoma vivax, T. evansi, T. equiperdum, T. congolense, T. b. brucei e T. simiae geram importantes doenças em ungulados na África, Ásia e Américas Central e do Sul; enquanto T. theileri e espécies relacionadas são pouco patogênicas. Compreender a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/05/2012
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11. Validação da via de biossíntese de selenocisteína e selenoproteínas em Trypanosoma por RNA de interferência
Selênio (Se) é um elemento essencial encontrado em selenoproteínas na forma do 21 aminoácido selenocisteína (Sec U). A incorporação co-traducional de Sec depende de uma complexa via de síntese, de um códon de terminação UGA em fase de leitura e uma estrutura terciária do RNA mensageiro conhecida como elemento SECIS. A maioria das selenoproteínas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/04/2012
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12. Trypanosoma rangeli protein tyrosine phosphatase is associated with the parasite's flagellum
Protein tyrosine phosphatases (PTPs) play an essential role in the regulation of cell differentiation in pathogenic trypanosomatids. In this study, we describe a PTP expressed by the non-pathogenic protozoan Trypanosoma rangeli (TrPTP2). The gene for this PTP is orthologous to the T. brucei TbPTP1 and Trypanosoma cruzi (TcPTP2) genes. Cloning and expression
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-09