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Global Health and Tropical Medicine

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Efflux Pumps in Mycobacteria: Antimicrobial Resistance, Physiological Functions, and Role in Pathogenicity

The emergence of multidrug and extensively drug-resistant tuberculosis represents a major threat to the control of the disease. Antimicrobial drug resistance in Mycobacterium tuberculosis is not merely a consequence of the occurrence of gene mutations in the drug targets but a balance between the acquisition of mutations and drug efflux. The low permeability of the […]
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Enhancement of antibiotic activity by efflux inhibitors against multidrug resistant Mycobacterium tuberculosis clinical isolates from Brazil

Drug resistant tuberculosis continues to increase and new approaches for its treatment are necessary. The identification of M. tuberculosis clinical isolates presenting efflux as part of their resistant phenotype has a major impact in tuberculosis treatment. In this work, we used a checkerboard procedure combined with the tetrazolium microplate-based assay (TEMA) to study single combinations […]
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GHTM is a R&D Unit that brings together researchers from IHMT with a track record in Tropical Medicine and International/Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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