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Memorias do Instituto Oswaldo Cruz
Scopus
ISSN 0074-0276 · Fundação Oswaldo Cruz (FIOCRUZ) · 8.406 artikel di indeks
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Is the mitochondrion a promising drug target in trypanosomatids?
The trypanosomatids Trypanosoma brucei, Trypanosoma cruzi and Leishmania spp. are etiological agents of important neglected tropical diseases, affecting millions of people worldwide, and the drugs available for these diseases present several limitations. Novel efficient and nontoxic drugs are…
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Mycolicibacterium fortuitum genomic epidemiology, resistome and virulome
BACKGROUND Mycolicibacterium fortuitum is an opportunistic pathogen associated with human and animal infection worldwide. Studies concerning this species are mainly represented by case reports, some of them addressing drug susceptibility with a focus on a specific geographic region, so there is a…
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Open-source real-time quantitative RT-PCR-based on a RNA standard for the assessment of SARS-CoV-2 viral load
BACKGROUND Detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) target genes by molecular methods has been chosen as the main approach to identify individuals with Coronavirus disease 2019 (COVID-19) infection. OBJECTIVES In this study, we developed an open-source RNA…
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Transforming growth factor-ß as a therapeutic target for the cardiac damage of Chagas disease
Transforming growth factor beta (TGF-β) is deeply involved on the pathogenesis of Chagas disease. Our group has been investigating the participation of this pleiotropic cytokine in different aspects of Chagas disease over the last 20 years. Important observations have been made, such as: (i) the…
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Host cholesterol influences the activity of sterol biosynthesis inhibitors in Leishmania amazonensis
A significant percentage of exogenous cholesterol was found in promastigotes and amastigotes of all studied species of Leishmania, suggesting a biological role for this molecule. Previous studies have shown that promastigotes of Leishmania uptake more low-density lipoprotein (LDL) particles under…
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Significance of a neglected tropical disease: lessons from a paradigmatic case of ‘success in translation’
In a previous publication, I stressed the fundamental importance of research for improving health using as an example the control of Chagas disease in the Americas.(1) For that purpose, I analysed the major scientific breakthroughs and public health events from the 1909 discovery of Chagas disease…
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Waiting for a success story in prevention, control and treatment of Chagas disease in non-endemic countries
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Proteolytic inhibitors as alternative medicines to treat trypanosomatid-caused diseases: experience with calpain inhibitors
The treatment for tropical neglected diseases, such as Chagas disease (CD) and leishmaniasis, is extremely limited to a handful of drugs that suffer from unacceptable toxicity, tough administration routes, like parenteral, and increasing treatment failures due to the parasite resistance…
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Molecular aspects of Chikungunya virus infections in cancer patients
BACKGROUND Chikungunya virus (CHIKV) is an arbovirus that can cause chronic and debilitating manifestations. The first autochthonous case in Rio de Janeiro state was diagnosed in 2015, and an outbreak was declared in 2016. OBJECTIVE The aim of this work was to evaluate CHIKV viral load in serum…
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Evaluation of LAMP for the diagnosis of Loa loa infection in dried blood spots compared to PCR-based assays and microscopy
BACKGROUND Loa loa is a filarial species found exclusively in West and Central Africa. Microscopy is the traditional diagnosis method for human loiasis. Several molecular methods have developed as an alternative approach for identification of L. loa filarial parasites. OBJECTIVES The aim of this…
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Mitochondrial dysfunction on Leishmania (Leishmania) amazonensis induced by ketoconazole: insights into drug mode of action
BACKGROUND Leishmania parasites cause leishmaniasis that range from self-limiting cutaneous lesions to more serious forms of the disease. The search for potential drug targets focusing on biochemical and metabolic pathways revealed the sterol biosynthesis inhibitors (SBIs) as a promising approach…
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The history of Chagas disease: reflections on science in action
Approaching from the perspective of the history and social studies of science, the article analyses some aspects of the early history of Chagas disease, from its discovery through initial research. It is our goal to show that historians of science can explore this topic as a way not only of…
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Antigenicity and adhesiveness of a Plasmodium vivax VIR-E protein from Brazilian isolates
BACKGROUND Plasmodium vivax, the major cause of malaria in Latin America, has a large subtelomeric multigene family called vir. In the P. vivax genome, about 20% of its sequences are vir genes. Vir antigens are grouped in subfamilies according to their sequence similarities and have been shown to…
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Giardiasis in urban and rural Amazonas, Brazil is driven by zoonotic and cosmopolitan A and B assemblages
BACKGROUND Giardia duodenalis is a protozoan parasite that infects humans and other mammals and causes giardiasis worldwide. Giardia is genotyped into eight assemblages (A-H), with assemblages A and B considered zoonotic. OBJECTIVES The aim of this study was to determine the assemblages of G…
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Antileishmanial metallodrugs and the elucidation of new drug targets linked to post-translational modifications machinery: pitfalls and progress
Despite the increasing number of manuscripts describing potential alternative antileishmanial compounds, little is advancing on translating these knowledges to new products to treat leishmaniasis. This is in part due to the lack of standardisations during pre-clinical drug discovery stage and also…
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Morel paper is a passionate plea for the concept of “translation” with translational research (TR) as a flag
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Chagas disease challenge - New techniques for diagnosis and treatment address to control in endemic areas
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Artikel Jurnal Teks lengkap
Transmission cluster of COVID-19 cases from Uruguay: emergence and spreading of a novel SARS-CoV-2 ORF6 deletion
BACKGROUND Evolutionary changes in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) include indels in non-structural, structural, and accessory open reading frames (ORFs) or genes. OBJECTIVES We track indels in accessory ORFs to infer evolutionary gene patterns and epidemiological links…
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A safe, effective, and reliable vaccine against Chagas disease should be described!
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