Native rodent species are unlikely sources of infection for Leishmania (Viannia) braziliensis along the Transoceanic Highway in Madre de Dios, Peru. [PDF]
An estimated 2.3 million disability-adjusted life years are lost globally from leishmaniasis. In Peru's Amazon region, the department of Madre de Dios (MDD) rises above the rest of the country in terms of the annual incidence rates of human leishmaniasis.
Conrad, Patricia A +7 more
core +4 more sources
Leishmania amazonensis Infection in Nude Mice.
Leishmania amazonensis is an intracellular protozoan parasite of macrophages. Cutaneous leishmaniasis in an immunocompetent host begins as papules or nodules followed by ulceration at the site of promastigote inoculation. In this study, the pathological changes of cutaneous leishmaniasis lesions in T cell deficient nude mice were examined.
M, Terabe +5 more
openaire +3 more sources
Effects of Brazilian propolis on Leishmania amazonensis [PDF]
Leishmaniasis, an endemic parasitosis that leads to chronic cutaneous, mucocutaneous or visceral lesions, is part of those diseases, which still requires improved control tools. Propolis has shown activities against different bacteria, fungi, and parasites.
Ayres, Diana Copi +2 more
openaire +4 more sources
Role of protein kinase R in the killing of Leishmania major by macrophages in response to neutrophil elastase and TLR4 via TNF and IFN [PDF]
In cutaneous leishmaniasis, Leishmania amazonensis activates macrophage double-stranded, RNA-activated protein kinase R (PKR) to promote parasite growth. In our study, Leishmania major grew normally in RAW cells, RAW-expressing dominant-negative PKR (PKR-
Abu-Dayyeh I. +10 more
core +1 more source
Activity of alkaloids from Aspidosperma nitidum against Leishmania (Leishmania) amazonensis
AbstractThis study evaluated the morphological changes caused by fractions and subfractions, obtained from barks of Aspidosperna nitidum, against L. (L.) amazonensis promastigotes. The ethanolic extract (EE) obtained through the maceration of trunk barks was subjected to an acid–base partition, resulting the neutral (FN) and the alkaloid (FA) fractions,
Andreza do Socorro Silva da Veiga +10 more
openaire +3 more sources
The characterization of expressed sequence tags (ESTs) generated from a cDNA library of Leishmania (Leishmania) amazonensis amastigotes is described. The sequencing of 93 clones generated new L. (L.) amazonensis ESTs from which 32% are not related to any
Luciana Girotto Gentil +4 more
doaj +1 more source
Resistance of Leishmania (Leishmania) amazonensis and Leishmania (Viannia) braziliensisto nitric oxide correlates with disease severity in Tegumentary Leishmaniasis [PDF]
Background Nitric oxide (NO•) plays a pivotal role as a leishmanicidal agent in mouse macrophages. NO• resistant Escherichia coli and Mycobacterium tuberculosis have been associated with a severe outcome of these diseases.
Angela Giudice +63 more
core +1 more source
Background: We aimed to determine the cellular recruitment (leukocyte rolling and adhesion) by which the Leishmania (Viannia) braziliensis, L. (Leishmania) amazonensis, and L. (Leishmania) major species in the mesenteric microcirculation of BALB/c mice.
Herintha Coeto Neitzke-Abreu +9 more
doaj
Characterization of oxidative stress in Leishmaniasis-infected or LPS-stimulated macrophages using electrochemical impedance spectroscopy [PDF]
The physiological changes caused by external stimuli can be employed as parameters to study pathogen infection in cells and the effect of drugs. Among analytical methods, impedance is potentially useful to give insight into cellular behavior by studying ...
Coste, Agnès +5 more
core +2 more sources
Drosophila Model of Leishmania amazonensis Infection
This protocol describes how to generate and harvest antibody-free L. amazonensis amastigotes, and how to infect adult Drosophila melanogaster with these parasites. This model recapitulates key aspects of the interactions between Leishmania amastigotes and animal phagocytes.
Okuda, Kendi, Silverman, Neal
openaire +5 more sources

