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Stress conditions in the host induce persister cells and influence biofilm form...
Fraiha, Rafael Ovando; Pereira, Ana Paula Ramos; Brito, Eliana da Costa Alvarenga; Borges, Clayton Luiz; Parente, Ana Flávia AlvesINTRODUCTION: Studies have demonstrated that pathogens react to the harsh conditions in human tissues by inducing mechanisms that promote survival. METHODS: Persistence and biofilm-forming ability were evaluated during stress conditions that mimic those in the host. RESULTS: Carbon-source availability had a positive effect on Staphylococcus epidermidis RP62A adhesion during hypoxia, accompanied by a decrease in...
Overview of artemisinin effectiveness during outset years of its implementation...
Pinto, Raquel de Medeiros; Sampaio, Vanderson de Souza; Melo, Gisely Cardoso de; Alecrim, Maria das Graças Costa; Mattos, KarineBACKGROUND The elimination of malaria depends on the blocking of transmission and of an effective treatment. In Brazil, artemisinin therapy was introduced in 1991, and here we present a performance overview during implementation outset years. METHODS It is a retrospective cohort (1991 to 2002) of patients treated in a tertiary centre of Manaus, with positive microscopic diagnosis of Plasmodium falciparum malari...
Expressão de GFP em Bacillus thuringiensis S76 uma estirpe selvagem ativa para ...
Parente, Ana Flávia AlvesDissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Biologia Celular, 2009.; B. thuringiensis é um importante entomopatógeno amplamente estudado e empregado como agente de controle biológico, ainda assim, a ecologia desse microrganismo é pouco explorada. Apesar da crescente utilização na agricultura desse agente, as interações com plantas são pouco conhecidas. Com ...