Results 21 to 30 of about 16,640 (230)

Native rodent species are unlikely sources of infection for Leishmania (Viannia) braziliensis along the Transoceanic Highway in Madre de Dios, Peru. [PDF]

open access: yes, 2014
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.

open access: yesExperimental Animals, 1999
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]

open access: yesMemórias do Instituto Oswaldo Cruz, 2007
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]

open access: yes, 2014
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

open access: yesScientific Reports, 2022
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

Analysis and chromosomal mapping of Leishmania (Leishmania) amazonensis amastigote expressed sequence tags

open access: yesMemorias do Instituto Oswaldo Cruz, 2007
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]

open access: yes, 2007
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

Leukocyte Behavior in Mesenteric Microcirculation upon Experimental By Leishmania Spp. in BALB/c Mice

open access: yesIranian Journal of Parasitology, 2021
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]

open access: yes, 2010
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

open access: yesBIO-PROTOCOL, 2017
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

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